Enerplus Corporation Common Stock NYSE:ERF Historical Prices

Below are the 5851 trading days of historical prices for ERF.

#	Exchange	Symbol	Date	Open	High	Low	Close
5851	NYSE	ERF	Mon, Mar 4, 2024	17.80	17.90	17.63	17.64
5850	NYSE	ERF	Fri, Mar 1, 2024	17.78	17.92	17.72	17.77
5849	NYSE	ERF	Thu, Feb 29, 2024	17.81	17.92	17.62	17.67
5848	NYSE	ERF	Wed, Feb 28, 2024	17.79	17.94	17.65	17.67
5847	NYSE	ERF	Tue, Feb 27, 2024	17.51	17.86	17.46	17.83
5846	NYSE	ERF	Mon, Feb 26, 2024	17.48	17.66	17.24	17.50
5845	NYSE	ERF	Fri, Feb 23, 2024	17.61	17.77	17.39	17.59
5844	NYSE	ERF	Thu, Feb 22, 2024	17.62	19.02	17.49	17.91
5843	NYSE	ERF	Wed, Feb 21, 2024	16.30	16.55	16.22	16.42
5842	NYSE	ERF	Tue, Feb 20, 2024	16.27	16.32	16.00	16.17
5841	NYSE	ERF	Fri, Feb 16, 2024	16.29	16.48	16.24	16.32
5840	NYSE	ERF	Thu, Feb 15, 2024	15.65	16.33	15.65	16.29
5839	NYSE	ERF	Wed, Feb 14, 2024	15.79	15.87	15.56	15.63
5838	NYSE	ERF	Tue, Feb 13, 2024	15.85	15.89	15.55	15.68
5837	NYSE	ERF	Mon, Feb 12, 2024	15.55	16.05	15.55	15.91
5836	NYSE	ERF	Fri, Feb 9, 2024	15.66	15.83	15.48	15.55
5835	NYSE	ERF	Thu, Feb 8, 2024	14.38	15.77	14.36	15.50
5834	NYSE	ERF	Wed, Feb 7, 2024	14.14	14.33	14.05	14.33
5833	NYSE	ERF	Tue, Feb 6, 2024	13.95	14.16	13.89	14.11
5832	NYSE	ERF	Mon, Feb 5, 2024	13.57	13.91	13.46	13.87
5831	NYSE	ERF	Fri, Feb 2, 2024	14.05	14.10	13.66	13.66
5830	NYSE	ERF	Thu, Feb 1, 2024	14.60	14.72	14.06	14.18
5829	NYSE	ERF	Wed, Jan 31, 2024	14.74	14.78	14.48	14.52
5828	NYSE	ERF	Tue, Jan 30, 2024	14.33	14.74	14.29	14.73
5827	NYSE	ERF	Mon, Jan 29, 2024	14.58	14.60	14.31	14.49
5826	NYSE	ERF	Fri, Jan 26, 2024	14.44	14.65	14.17	14.60
5825	NYSE	ERF	Thu, Jan 25, 2024	14.35	14.56	14.27	14.40
5824	NYSE	ERF	Wed, Jan 24, 2024	14.19	14.34	14.15	14.29
5823	NYSE	ERF	Tue, Jan 23, 2024	13.91	14.14	13.88	14.11
5822	NYSE	ERF	Mon, Jan 22, 2024	13.80	14.05	13.73	13.94
5821	NYSE	ERF	Fri, Jan 19, 2024	13.81	13.94	13.78	13.84
5820	NYSE	ERF	Thu, Jan 18, 2024	13.96	13.96	13.73	13.83
5819	NYSE	ERF	Wed, Jan 17, 2024	13.90	14.03	13.86	13.91
5818	NYSE	ERF	Tue, Jan 16, 2024	14.56	14.60	14.07	14.16
5817	NYSE	ERF	Fri, Jan 12, 2024	14.92	15.03	14.55	14.62
5816	NYSE	ERF	Thu, Jan 11, 2024	14.44	14.65	14.33	14.61
5815	NYSE	ERF	Wed, Jan 10, 2024	14.68	14.70	14.35	14.42
5814	NYSE	ERF	Tue, Jan 9, 2024	14.76	14.76	14.41	14.64
5813	NYSE	ERF	Mon, Jan 8, 2024	14.62	14.74	14.38	14.74
5812	NYSE	ERF	Fri, Jan 5, 2024	15.13	15.16	14.86	14.92
5811	NYSE	ERF	Thu, Jan 4, 2024	15.57	15.59	15.00	15.02
5810	NYSE	ERF	Wed, Jan 3, 2024	15.34	15.57	15.18	15.44
5809	NYSE	ERF	Tue, Jan 2, 2024	15.37	15.51	15.19	15.27
5808	NYSE	ERF	Fri, Dec 29, 2023	15.33	15.44	15.25	15.34
5807	NYSE	ERF	Thu, Dec 28, 2023	15.53	15.63	15.30	15.31
5806	NYSE	ERF	Wed, Dec 27, 2023	15.80	15.89	15.59	15.62
5805	NYSE	ERF	Tue, Dec 26, 2023	15.61	15.96	15.59	15.84
5804	NYSE	ERF	Fri, Dec 22, 2023	15.51	15.64	15.38	15.48
5803	NYSE	ERF	Thu, Dec 21, 2023	15.27	15.45	15.16	15.45
5802	NYSE	ERF	Wed, Dec 20, 2023	15.33	15.69	15.18	15.19
5801	NYSE	ERF	Tue, Dec 19, 2023	15.20	15.35	15.01	15.31
5800	NYSE	ERF	Mon, Dec 18, 2023	15.09	15.31	15.00	15.09
5799	NYSE	ERF	Fri, Dec 15, 2023	15.02	15.11	14.67	14.78
5798	NYSE	ERF	Thu, Dec 14, 2023	14.85	15.16	14.82	15.05
5797	NYSE	ERF	Wed, Dec 13, 2023	14.52	14.70	14.25	14.65
5796	NYSE	ERF	Tue, Dec 12, 2023	14.73	14.73	14.29	14.46
5795	NYSE	ERF	Mon, Dec 11, 2023	15.00	15.02	14.78	14.86
5794	NYSE	ERF	Fri, Dec 8, 2023	14.91	15.26	14.91	15.00
5793	NYSE	ERF	Thu, Dec 7, 2023	14.91	15.02	14.73	14.83
5792	NYSE	ERF	Wed, Dec 6, 2023	15.15	15.28	14.76	14.77
5791	NYSE	ERF	Tue, Dec 5, 2023	15.62	15.68	15.25	15.26
5790	NYSE	ERF	Mon, Dec 4, 2023	15.86	15.86	15.58	15.61
5789	NYSE	ERF	Fri, Dec 1, 2023	15.90	16.19	15.82	15.95
5788	NYSE	ERF	Thu, Nov 30, 2023	15.95	16.29	15.75	15.86
5787	NYSE	ERF	Wed, Nov 29, 2023	15.87	15.98	15.64	15.80
5786	NYSE	ERF	Tue, Nov 28, 2023	15.85	16.03	15.75	15.77
5785	NYSE	ERF	Mon, Nov 27, 2023	15.87	15.93	15.68	15.78
5784	NYSE	ERF	Fri, Nov 24, 2023	15.99	16.25	15.99	16.04
5783	NYSE	ERF	Wed, Nov 22, 2023	15.53	16.04	15.47	16.02
5782	NYSE	ERF	Tue, Nov 21, 2023	16.10	16.17	15.93	16.01
5781	NYSE	ERF	Mon, Nov 20, 2023	16.45	16.53	16.13	16.14
5780	NYSE	ERF	Fri, Nov 17, 2023	16.10	16.41	16.10	16.26
5779	NYSE	ERF	Thu, Nov 16, 2023	15.86	15.98	15.63	15.91
5778	NYSE	ERF	Wed, Nov 15, 2023	16.38	16.54	16.07	16.10
5777	NYSE	ERF	Tue, Nov 14, 2023	16.28	16.49	16.24	16.48
5776	NYSE	ERF	Mon, Nov 13, 2023	16.22	16.39	16.15	16.21
5775	NYSE	ERF	Fri, Nov 10, 2023	16.10	16.27	15.99	16.26
5774	NYSE	ERF	Thu, Nov 9, 2023	16.03	16.29	15.86	15.89
5773	NYSE	ERF	Wed, Nov 8, 2023	16.11	16.29	15.79	15.93
5772	NYSE	ERF	Tue, Nov 7, 2023	16.68	16.71	16.22	16.27
5771	NYSE	ERF	Mon, Nov 6, 2023	17.59	17.59	17.00	17.05
5770	NYSE	ERF	Fri, Nov 3, 2023	17.57	18.09	17.27	17.44
5769	NYSE	ERF	Thu, Nov 2, 2023	16.94	17.58	16.89	17.56
5768	NYSE	ERF	Wed, Nov 1, 2023	16.98	17.17	16.84	16.93
5767	NYSE	ERF	Tue, Oct 31, 2023	16.99	17.15	16.77	16.91
5766	NYSE	ERF	Mon, Oct 30, 2023	17.08	17.27	16.77	16.91
5765	NYSE	ERF	Fri, Oct 27, 2023	17.25	17.29	16.81	17.09
5764	NYSE	ERF	Thu, Oct 26, 2023	17.13	17.30	16.94	17.14
5763	NYSE	ERF	Wed, Oct 25, 2023	17.19	17.38	17.00	17.28
5762	NYSE	ERF	Tue, Oct 24, 2023	17.47	17.47	17.11	17.16
5761	NYSE	ERF	Mon, Oct 23, 2023	17.49	17.71	17.25	17.35
5760	NYSE	ERF	Fri, Oct 20, 2023	17.92	18.02	17.67	17.67
5759	NYSE	ERF	Thu, Oct 19, 2023	17.59	18.05	17.39	17.99
5758	NYSE	ERF	Wed, Oct 18, 2023	17.74	17.84	17.59	17.73
5757	NYSE	ERF	Tue, Oct 17, 2023	17.50	17.74	17.41	17.74
5756	NYSE	ERF	Mon, Oct 16, 2023	17.60	17.60	17.25	17.54
5755	NYSE	ERF	Fri, Oct 13, 2023	17.47	17.54	17.29	17.41
5754	NYSE	ERF	Thu, Oct 12, 2023	17.38	17.38	17.02	17.11
5753	NYSE	ERF	Wed, Oct 11, 2023	17.05	17.27	16.93	17.14
5752	NYSE	ERF	Tue, Oct 10, 2023	17.15	17.33	17.06	17.16
5751	NYSE	ERF	Mon, Oct 9, 2023	17.04	17.17	16.90	17.07
5750	NYSE	ERF	Fri, Oct 6, 2023	16.25	16.72	16.06	16.44
5749	NYSE	ERF	Thu, Oct 5, 2023	16.08	16.48	16.05	16.15
5748	NYSE	ERF	Wed, Oct 4, 2023	16.78	16.84	16.11	16.19
5747	NYSE	ERF	Tue, Oct 3, 2023	16.81	17.06	16.79	17.05
5746	NYSE	ERF	Mon, Oct 2, 2023	17.54	17.61	16.83	16.88
5745	NYSE	ERF	Fri, Sep 29, 2023	17.84	17.94	17.57	17.63
5744	NYSE	ERF	Thu, Sep 28, 2023	17.66	17.92	17.61	17.75
5743	NYSE	ERF	Wed, Sep 27, 2023	17.55	17.81	17.39	17.65
5742	NYSE	ERF	Tue, Sep 26, 2023	17.05	17.40	17.05	17.23
5741	NYSE	ERF	Mon, Sep 25, 2023	16.79	17.25	16.75	17.23
5740	NYSE	ERF	Fri, Sep 22, 2023	16.82	17.00	16.69	16.86
5739	NYSE	ERF	Thu, Sep 21, 2023	16.88	17.00	16.52	16.66
5738	NYSE	ERF	Wed, Sep 20, 2023	17.21	17.37	16.86	16.86
5737	NYSE	ERF	Tue, Sep 19, 2023	17.77	17.87	17.25	17.30
5736	NYSE	ERF	Mon, Sep 18, 2023	17.71	17.73	17.35	17.56
5735	NYSE	ERF	Fri, Sep 15, 2023	17.75	17.89	17.53	17.56
5734	NYSE	ERF	Thu, Sep 14, 2023	17.90	18.00	17.60	17.79
5733	NYSE	ERF	Wed, Sep 13, 2023	17.70	17.74	17.39	17.67
5732	NYSE	ERF	Tue, Sep 12, 2023	17.28	17.71	17.24	17.70
5731	NYSE	ERF	Mon, Sep 11, 2023	17.55	17.63	17.05	17.09
5730	NYSE	ERF	Fri, Sep 8, 2023	17.56	17.65	17.37	17.40
5729	NYSE	ERF	Thu, Sep 7, 2023	17.16	17.47	16.95	17.41
5728	NYSE	ERF	Wed, Sep 6, 2023	17.47	17.65	17.27	17.41
5727	NYSE	ERF	Tue, Sep 5, 2023	17.50	17.74	17.36	17.41
5726	NYSE	ERF	Fri, Sep 1, 2023	17.35	17.46	17.27	17.39
5725	NYSE	ERF	Thu, Aug 31, 2023	17.13	17.28	17.03	17.11
5724	NYSE	ERF	Wed, Aug 30, 2023	17.05	17.19	16.97	17.07
5723	NYSE	ERF	Tue, Aug 29, 2023	16.85	17.09	16.73	16.96
5722	NYSE	ERF	Mon, Aug 28, 2023	16.83	17.04	16.72	16.81
5721	NYSE	ERF	Fri, Aug 25, 2023	16.73	16.89	16.53	16.76
5720	NYSE	ERF	Thu, Aug 24, 2023	16.61	16.84	16.52	16.60
5719	NYSE	ERF	Wed, Aug 23, 2023	16.61	16.90	16.47	16.72
5718	NYSE	ERF	Tue, Aug 22, 2023	16.86	16.99	16.79	16.79
5717	NYSE	ERF	Mon, Aug 21, 2023	17.06	17.17	16.78	16.80
5716	NYSE	ERF	Fri, Aug 18, 2023	16.69	17.01	16.62	16.95
5715	NYSE	ERF	Thu, Aug 17, 2023	16.84	17.08	16.78	16.81
5714	NYSE	ERF	Wed, Aug 16, 2023	16.23	16.78	16.23	16.54
5713	NYSE	ERF	Tue, Aug 15, 2023	16.43	16.68	16.26	16.30
5712	NYSE	ERF	Mon, Aug 14, 2023	16.71	16.72	16.41	16.50
5711	NYSE	ERF	Fri, Aug 11, 2023	16.59	16.99	16.52	16.79
5710	NYSE	ERF	Thu, Aug 10, 2023	16.64	17.28	16.47	16.60
5709	NYSE	ERF	Wed, Aug 9, 2023	17.09	17.32	16.99	17.11
5708	NYSE	ERF	Tue, Aug 8, 2023	16.50	16.99	16.37	16.97
5707	NYSE	ERF	Mon, Aug 7, 2023	16.76	16.86	16.56	16.82
5706	NYSE	ERF	Fri, Aug 4, 2023	16.64	16.89	16.56	16.71
5705	NYSE	ERF	Thu, Aug 3, 2023	16.50	16.76	16.33	16.58
5704	NYSE	ERF	Wed, Aug 2, 2023	16.71	16.71	16.15	16.40
5703	NYSE	ERF	Tue, Aug 1, 2023	16.57	16.74	16.31	16.71
5702	NYSE	ERF	Mon, Jul 31, 2023	16.60	16.98	16.60	16.72
5701	NYSE	ERF	Fri, Jul 28, 2023	16.12	16.52	15.98	16.51
5700	NYSE	ERF	Thu, Jul 27, 2023	16.37	16.42	16.02	16.09
5699	NYSE	ERF	Wed, Jul 26, 2023	16.19	16.43	16.08	16.27
5698	NYSE	ERF	Tue, Jul 25, 2023	16.22	16.46	16.19	16.29
5697	NYSE	ERF	Mon, Jul 24, 2023	16.08	16.35	16.06	16.27
5696	NYSE	ERF	Fri, Jul 21, 2023	15.97	16.06	15.76	15.99
5695	NYSE	ERF	Thu, Jul 20, 2023	15.84	15.90	15.48	15.82
5694	NYSE	ERF	Wed, Jul 19, 2023	15.75	15.95	15.63	15.69
5693	NYSE	ERF	Tue, Jul 18, 2023	14.96	15.73	14.92	15.65
5692	NYSE	ERF	Mon, Jul 17, 2023	14.95	15.25	14.83	14.96
5691	NYSE	ERF	Fri, Jul 14, 2023	15.38	15.38	14.93	14.95
5690	NYSE	ERF	Thu, Jul 13, 2023	15.10	15.47	15.04	15.42
5689	NYSE	ERF	Wed, Jul 12, 2023	15.14	15.19	15.00	15.07
5688	NYSE	ERF	Tue, Jul 11, 2023	14.85	15.03	14.85	14.98
5687	NYSE	ERF	Mon, Jul 10, 2023	14.70	14.97	14.63	14.83
5686	NYSE	ERF	Fri, Jul 7, 2023	14.00	14.80	14.00	14.72
5685	NYSE	ERF	Thu, Jul 6, 2023	14.27	14.31	13.80	14.02
5684	NYSE	ERF	Wed, Jul 5, 2023	14.66	14.67	14.33	14.36
5683	NYSE	ERF	Mon, Jul 3, 2023	14.53	14.64	14.37	14.40
5682	NYSE	ERF	Fri, Jun 30, 2023	14.48	14.64	14.38	14.47
5681	NYSE	ERF	Thu, Jun 29, 2023	14.25	14.52	14.20	14.47
5680	NYSE	ERF	Wed, Jun 28, 2023	14.23	14.35	14.02	14.20
5679	NYSE	ERF	Tue, Jun 27, 2023	14.07	14.26	14.00	14.20
5678	NYSE	ERF	Mon, Jun 26, 2023	13.97	14.31	13.87	14.15
5677	NYSE	ERF	Fri, Jun 23, 2023	13.88	14.07	13.80	13.89
5676	NYSE	ERF	Thu, Jun 22, 2023	14.13	14.19	13.94	14.08
5675	NYSE	ERF	Wed, Jun 21, 2023	14.16	14.50	14.15	14.33
5674	NYSE	ERF	Tue, Jun 20, 2023	14.34	14.39	13.98	14.16
5673	NYSE	ERF	Fri, Jun 16, 2023	14.46	14.57	14.33	14.49
5672	NYSE	ERF	Thu, Jun 15, 2023	14.20	14.46	14.20	14.44
5671	NYSE	ERF	Wed, Jun 14, 2023	14.60	14.65	14.05	14.21
5670	NYSE	ERF	Tue, Jun 13, 2023	14.54	14.73	14.45	14.46
5669	NYSE	ERF	Mon, Jun 12, 2023	14.47	14.54	14.14	14.31
5668	NYSE	ERF	Fri, Jun 9, 2023	14.78	14.90	14.64	14.74
5667	NYSE	ERF	Thu, Jun 8, 2023	15.05	15.11	14.49	14.79
5666	NYSE	ERF	Wed, Jun 7, 2023	14.84	15.13	14.79	15.08
5665	NYSE	ERF	Tue, Jun 6, 2023	14.17	14.65	14.13	14.65
5664	NYSE	ERF	Mon, Jun 5, 2023	15.01	14.77	14.36	14.75
5663	NYSE	ERF	Fri, Jun 2, 2023	14.31	14.77	14.31	14.75
5662	NYSE	ERF	Thu, Jun 1, 2023	13.82	14.23	13.73	14.00
5661	NYSE	ERF	Wed, May 31, 2023	13.84	13.98	13.74	13.82
5660	NYSE	ERF	Tue, May 30, 2023	14.41	14.41	13.97	14.16
5659	NYSE	ERF	Fri, May 26, 2023	14.61	14.69	14.42	14.64
5658	NYSE	ERF	Thu, May 25, 2023	14.50	14.57	14.29	14.52
5657	NYSE	ERF	Wed, May 24, 2023	14.89	15.01	14.63	14.72
5656	NYSE	ERF	Tue, May 23, 2023	14.93	14.98	14.74	14.83
5655	NYSE	ERF	Mon, May 22, 2023	14.70	15.12	14.68	14.88
5654	NYSE	ERF	Fri, May 19, 2023	14.74	14.85	14.62	14.75
5653	NYSE	ERF	Thu, May 18, 2023	14.21	14.50	14.10	14.50
5652	NYSE	ERF	Wed, May 17, 2023	14.19	14.36	13.89	14.36
5651	NYSE	ERF	Tue, May 16, 2023	14.22	14.36	13.97	13.98
5650	NYSE	ERF	Mon, May 15, 2023	14.20	14.39	14.09	14.24
5649	NYSE	ERF	Fri, May 12, 2023	14.18	14.25	13.93	14.05
5648	NYSE	ERF	Thu, May 11, 2023	14.12	14.25	13.90	14.07
5647	NYSE	ERF	Wed, May 10, 2023	14.66	14.75	14.14	14.34
5646	NYSE	ERF	Tue, May 9, 2023	14.62	14.82	14.50	14.64
5645	NYSE	ERF	Mon, May 8, 2023	14.98	15.10	14.71	14.74
5644	NYSE	ERF	Fri, May 5, 2023	14.41	14.77	14.37	14.61
5643	NYSE	ERF	Thu, May 4, 2023	14.03	14.12	13.74	13.93
5642	NYSE	ERF	Wed, May 3, 2023	13.83	14.21	13.73	13.94
5641	NYSE	ERF	Tue, May 2, 2023	14.55	14.61	14.03	14.10
5640	NYSE	ERF	Mon, May 1, 2023	14.76	15.11	14.71	14.83
5639	NYSE	ERF	Fri, Apr 28, 2023	14.39	15.03	14.24	14.96
5638	NYSE	ERF	Thu, Apr 27, 2023	14.41	14.77	14.31	14.41
5637	NYSE	ERF	Wed, Apr 26, 2023	14.50	14.71	14.30	14.38
5636	NYSE	ERF	Tue, Apr 25, 2023	14.82	14.93	14.49	14.55
5635	NYSE	ERF	Mon, Apr 24, 2023	14.67	15.20	14.67	15.14
5634	NYSE	ERF	Fri, Apr 21, 2023	14.63	14.82	14.53	14.69
5633	NYSE	ERF	Thu, Apr 20, 2023	14.68	14.81	14.52	14.64
5632	NYSE	ERF	Wed, Apr 19, 2023	14.71	14.79	14.43	14.69
5631	NYSE	ERF	Tue, Apr 18, 2023	15.15	15.16	14.87	14.95
5630	NYSE	ERF	Mon, Apr 17, 2023	15.45	15.52	15.19	15.21
5629	NYSE	ERF	Fri, Apr 14, 2023	15.49	15.61	15.28	15.46
5628	NYSE	ERF	Thu, Apr 13, 2023	15.40	15.52	15.22	15.45
5627	NYSE	ERF	Wed, Apr 12, 2023	15.38	15.55	15.27	15.37
5626	NYSE	ERF	Tue, Apr 11, 2023	15.41	15.43	15.20	15.32
5625	NYSE	ERF	Mon, Apr 10, 2023	14.99	15.34	14.92	15.31
5624	NYSE	ERF	Thu, Apr 6, 2023	15.06	15.10	14.81	14.89
5623	NYSE	ERF	Wed, Apr 5, 2023	15.17	15.25	14.79	15.10
5622	NYSE	ERF	Tue, Apr 4, 2023	15.52	15.53	14.93	15.14
5621	NYSE	ERF	Mon, Apr 3, 2023	15.22	15.49	15.14	15.46
5620	NYSE	ERF	Fri, Mar 31, 2023	14.53	14.56	14.29	14.41
5619	NYSE	ERF	Thu, Mar 30, 2023	14.68	14.77	14.32	14.45
5618	NYSE	ERF	Wed, Mar 29, 2023	14.59	14.66	14.38	14.52
5617	NYSE	ERF	Tue, Mar 28, 2023	14.23	14.62	14.19	14.36
5616	NYSE	ERF	Mon, Mar 27, 2023	14.10	14.37	13.85	14.34
5615	NYSE	ERF	Fri, Mar 24, 2023	13.69	14.16	13.60	14.02
5614	NYSE	ERF	Thu, Mar 23, 2023	14.29	14.66	13.91	13.96
5613	NYSE	ERF	Wed, Mar 22, 2023	14.11	14.61	14.09	14.14
5612	NYSE	ERF	Tue, Mar 21, 2023	14.00	14.28	13.93	14.10
5611	NYSE	ERF	Mon, Mar 20, 2023	13.11	13.75	13.11	13.67
5610	NYSE	ERF	Fri, Mar 17, 2023	13.23	13.34	12.95	13.07
5609	NYSE	ERF	Thu, Mar 16, 2023	12.88	13.66	12.84	13.40
5608	NYSE	ERF	Wed, Mar 15, 2023	13.88	13.96	12.94	13.23
5607	NYSE	ERF	Tue, Mar 14, 2023	14.67	15.13	14.37	14.50
5606	NYSE	ERF	Mon, Mar 13, 2023	14.98	15.31	14.59	14.69
5605	NYSE	ERF	Fri, Mar 10, 2023	15.87	16.10	15.37	15.50
5604	NYSE	ERF	Thu, Mar 9, 2023	16.24	16.70	15.84	15.89
5603	NYSE	ERF	Wed, Mar 8, 2023	16.06	16.46	15.99	16.13
5602	NYSE	ERF	Tue, Mar 7, 2023	16.13	16.26	15.89	16.04
5601	NYSE	ERF	Mon, Mar 6, 2023	16.30	16.39	16.12	16.18
5600	NYSE	ERF	Fri, Mar 3, 2023	16.07	16.58	15.99	16.51
5599	NYSE	ERF	Thu, Mar 2, 2023	16.26	16.40	16.07	16.32
5598	NYSE	ERF	Wed, Mar 1, 2023	15.86	16.37	15.82	16.35
5597	NYSE	ERF	Tue, Feb 28, 2023	16.20	16.39	15.87	15.87
5596	NYSE	ERF	Mon, Feb 27, 2023	16.07	16.29	15.94	16.03
5595	NYSE	ERF	Fri, Feb 24, 2023	16.01	16.17	15.58	16.06
5594	NYSE	ERF	Thu, Feb 23, 2023	15.85	16.07	15.57	15.99
5593	NYSE	ERF	Wed, Feb 22, 2023	15.60	15.92	15.34	15.52
5592	NYSE	ERF	Tue, Feb 21, 2023	15.72	15.90	15.57	15.61
5591	NYSE	ERF	Fri, Feb 17, 2023	16.44	16.44	15.82	15.82
5590	NYSE	ERF	Thu, Feb 16, 2023	16.91	17.14	16.75	16.78
5589	NYSE	ERF	Wed, Feb 15, 2023	17.39	17.39	16.84	17.01
5588	NYSE	ERF	Tue, Feb 14, 2023	17.38	17.79	17.17	17.72
5587	NYSE	ERF	Mon, Feb 13, 2023	17.42	17.57	17.21	17.50
5586	NYSE	ERF	Fri, Feb 10, 2023	17.22	17.60	17.13	17.59
5585	NYSE	ERF	Thu, Feb 9, 2023	17.33	17.38	16.89	16.89
5584	NYSE	ERF	Wed, Feb 8, 2023	17.45	17.65	17.16	17.25
5583	NYSE	ERF	Tue, Feb 7, 2023	16.55	17.40	16.52	17.39
5582	NYSE	ERF	Mon, Feb 6, 2023	16.71	16.82	16.10	16.42
5581	NYSE	ERF	Fri, Feb 3, 2023	16.50	17.17	16.42	16.71
5580	NYSE	ERF	Thu, Feb 2, 2023	17.09	17.17	16.38	16.51
5579	NYSE	ERF	Wed, Feb 1, 2023	17.63	17.70	16.60	17.09
5578	NYSE	ERF	Tue, Jan 31, 2023	17.40	17.78	17.18	17.75
5577	NYSE	ERF	Mon, Jan 30, 2023	17.51	17.74	17.34	17.45
5576	NYSE	ERF	Fri, Jan 27, 2023	17.99	18.17	17.67	17.90
5575	NYSE	ERF	Thu, Jan 26, 2023	17.75	17.99	17.09	17.99
5574	NYSE	ERF	Wed, Jan 25, 2023	17.43	17.57	17.09	17.52
5573	NYSE	ERF	Tue, Jan 24, 2023	17.76	17.90	17.41	17.57
5572	NYSE	ERF	Mon, Jan 23, 2023	17.71	17.86	17.45	17.75
5571	NYSE	ERF	Fri, Jan 20, 2023	17.87	17.91	17.55	17.70
5570	NYSE	ERF	Thu, Jan 19, 2023	17.28	17.92	17.28	17.77
5569	NYSE	ERF	Wed, Jan 18, 2023	17.70	18.02	17.34	17.35
5568	NYSE	ERF	Tue, Jan 17, 2023	17.50	17.62	17.20	17.58
5567	NYSE	ERF	Fri, Jan 13, 2023	17.36	17.46	17.06	17.38
5566	NYSE	ERF	Thu, Jan 12, 2023	17.10	17.41	16.95	17.38
5565	NYSE	ERF	Wed, Jan 11, 2023	16.82	17.06	16.63	16.79
5564	NYSE	ERF	Tue, Jan 10, 2023	16.38	16.59	16.16	16.57
5563	NYSE	ERF	Mon, Jan 9, 2023	16.74	16.81	16.36	16.44
5562	NYSE	ERF	Fri, Jan 6, 2023	16.32	16.48	16.17	16.28
5561	NYSE	ERF	Thu, Jan 5, 2023	16.05	16.30	15.89	16.00
5560	NYSE	ERF	Wed, Jan 4, 2023	16.04	16.39	15.77	16.13
5559	NYSE	ERF	Tue, Jan 3, 2023	17.41	17.43	16.10	16.20
5558	NYSE	ERF	Fri, Dec 30, 2022	17.29	17.82	17.25	17.65
5557	NYSE	ERF	Thu, Dec 29, 2022	16.77	17.55	16.68	17.41
5556	NYSE	ERF	Wed, Dec 28, 2022	17.64	17.64	16.90	16.93
5555	NYSE	ERF	Tue, Dec 27, 2022	17.80	17.92	17.36	17.72
5554	NYSE	ERF	Fri, Dec 23, 2022	17.00	17.63	16.96	17.62
5553	NYSE	ERF	Thu, Dec 22, 2022	17.37	17.50	16.43	16.76
5552	NYSE	ERF	Wed, Dec 21, 2022	17.06	17.48	16.87	17.45
5551	NYSE	ERF	Tue, Dec 20, 2022	16.23	16.77	16.23	16.67
5550	NYSE	ERF	Mon, Dec 19, 2022	16.62	16.74	16.17	16.36
5549	NYSE	ERF	Fri, Dec 16, 2022	16.33	16.55	16.00	16.43
5548	NYSE	ERF	Thu, Dec 15, 2022	16.72	16.83	16.30	16.76
5547	NYSE	ERF	Wed, Dec 14, 2022	16.95	17.11	16.42	16.92
5546	NYSE	ERF	Tue, Dec 13, 2022	16.96	17.19	16.62	16.73
5545	NYSE	ERF	Mon, Dec 12, 2022	16.29	16.75	16.19	16.55
5544	NYSE	ERF	Fri, Dec 9, 2022	16.63	16.95	16.14	16.14
5543	NYSE	ERF	Thu, Dec 8, 2022	17.10	17.31	16.57	16.70
5542	NYSE	ERF	Wed, Dec 7, 2022	16.67	17.13	16.51	16.60
5541	NYSE	ERF	Tue, Dec 6, 2022	17.11	17.64	16.68	16.76
5540	NYSE	ERF	Mon, Dec 5, 2022	18.50	18.74	17.19	17.22
5539	NYSE	ERF	Fri, Dec 2, 2022	17.76	18.41	17.70	18.14
5538	NYSE	ERF	Thu, Dec 1, 2022	18.88	18.92	17.88	17.92
5537	NYSE	ERF	Wed, Nov 30, 2022	18.80	18.97	18.37	18.58
5536	NYSE	ERF	Tue, Nov 29, 2022	18.43	18.85	18.25	18.44
5535	NYSE	ERF	Mon, Nov 28, 2022	17.83	18.39	17.63	18.17
5534	NYSE	ERF	Fri, Nov 25, 2022	18.67	18.75	18.38	18.43
5533	NYSE	ERF	Wed, Nov 23, 2022	18.49	18.72	18.34	18.53
5532	NYSE	ERF	Tue, Nov 22, 2022	18.44	18.90	18.14	18.81
5531	NYSE	ERF	Mon, Nov 21, 2022	18.16	18.30	17.11	18.08
5530	NYSE	ERF	Fri, Nov 18, 2022	17.56	18.77	17.40	18.71
5529	NYSE	ERF	Thu, Nov 17, 2022	18.00	18.42	17.62	18.40
5528	NYSE	ERF	Wed, Nov 16, 2022	18.80	18.87	18.36	18.36
5527	NYSE	ERF	Tue, Nov 15, 2022	18.81	19.23	18.39	19.20
5526	NYSE	ERF	Mon, Nov 14, 2022	18.70	19.08	18.61	18.66
5525	NYSE	ERF	Fri, Nov 11, 2022	18.32	18.98	18.27	18.76
5524	NYSE	ERF	Thu, Nov 10, 2022	18.00	18.07	17.63	17.97
5523	NYSE	ERF	Wed, Nov 9, 2022	18.31	18.43	17.48	17.53
5522	NYSE	ERF	Tue, Nov 8, 2022	18.64	18.91	18.43	18.73
5521	NYSE	ERF	Mon, Nov 7, 2022	18.50	18.96	18.25	18.77
5520	NYSE	ERF	Fri, Nov 4, 2022	17.92	18.99	17.92	18.28
5519	NYSE	ERF	Thu, Nov 3, 2022	16.91	17.47	16.76	17.25
5518	NYSE	ERF	Wed, Nov 2, 2022	17.37	17.51	16.82	17.05
5517	NYSE	ERF	Tue, Nov 1, 2022	17.69	17.78	17.25	17.32
5516	NYSE	ERF	Mon, Oct 31, 2022	16.82	17.36	16.65	17.31
5515	NYSE	ERF	Fri, Oct 28, 2022	17.15	17.25	16.60	16.93
5514	NYSE	ERF	Thu, Oct 27, 2022	17.66	17.80	17.01	17.04
5513	NYSE	ERF	Wed, Oct 26, 2022	17.02	17.51	16.81	17.35
5512	NYSE	ERF	Tue, Oct 25, 2022	17.19	17.37	16.93	16.96
5511	NYSE	ERF	Mon, Oct 24, 2022	16.79	17.23	16.62	17.15
5510	NYSE	ERF	Fri, Oct 21, 2022	16.60	16.83	16.29	16.78
5509	NYSE	ERF	Thu, Oct 20, 2022	16.54	16.89	16.45	16.59
5508	NYSE	ERF	Wed, Oct 19, 2022	15.75	16.44	15.64	16.29
5507	NYSE	ERF	Tue, Oct 18, 2022	15.82	15.96	15.26	15.62
5506	NYSE	ERF	Mon, Oct 17, 2022	15.37	15.88	15.37	15.61
5505	NYSE	ERF	Fri, Oct 14, 2022	15.65	15.88	15.06	15.07
5504	NYSE	ERF	Thu, Oct 13, 2022	15.09	16.30	15.05	15.89
5503	NYSE	ERF	Wed, Oct 12, 2022	15.31	15.82	15.08	15.56
5502	NYSE	ERF	Tue, Oct 11, 2022	15.38	15.86	15.01	15.40
5501	NYSE	ERF	Mon, Oct 10, 2022	16.09	16.24	15.47	15.79
5500	NYSE	ERF	Fri, Oct 7, 2022	16.30	16.80	16.12	16.16
5499	NYSE	ERF	Thu, Oct 6, 2022	15.49	16.18	15.49	16.15
5498	NYSE	ERF	Wed, Oct 5, 2022	15.43	15.80	14.82	15.66
5497	NYSE	ERF	Tue, Oct 4, 2022	15.31	15.62	15.11	15.38
5496	NYSE	ERF	Mon, Oct 3, 2022	14.98	15.22	14.73	15.01
5495	NYSE	ERF	Fri, Sep 30, 2022	14.00	14.46	13.79	14.17
5494	NYSE	ERF	Thu, Sep 29, 2022	14.00	14.33	13.48	14.25
5493	NYSE	ERF	Wed, Sep 28, 2022	13.08	14.29	12.97	14.22
5492	NYSE	ERF	Tue, Sep 27, 2022	12.71	13.04	12.43	12.97
5491	NYSE	ERF	Mon, Sep 26, 2022	13.16	13.33	12.39	12.51
5490	NYSE	ERF	Fri, Sep 23, 2022	13.84	13.86	13.22	13.35
5489	NYSE	ERF	Thu, Sep 22, 2022	15.27	15.45	14.54	14.55
5488	NYSE	ERF	Wed, Sep 21, 2022	15.78	15.93	14.96	14.96
5487	NYSE	ERF	Tue, Sep 20, 2022	15.52	15.58	15.04	15.48
5486	NYSE	ERF	Mon, Sep 19, 2022	14.75	15.68	14.75	15.62
5485	NYSE	ERF	Fri, Sep 16, 2022	15.56	15.62	14.95	15.42
5484	NYSE	ERF	Thu, Sep 15, 2022	15.59	15.99	15.47	15.68
5483	NYSE	ERF	Wed, Sep 14, 2022	15.64	16.19	15.64	16.04
5482	NYSE	ERF	Tue, Sep 13, 2022	15.27	15.77	15.24	15.36
5481	NYSE	ERF	Mon, Sep 12, 2022	15.57	15.69	15.37	15.55
5480	NYSE	ERF	Fri, Sep 9, 2022	15.19	15.42	15.12	15.27
5479	NYSE	ERF	Thu, Sep 8, 2022	14.52	14.78	14.33	14.73
5478	NYSE	ERF	Wed, Sep 7, 2022	14.73	14.74	14.22	14.37
5477	NYSE	ERF	Tue, Sep 6, 2022	15.72	15.87	15.12	15.19
5476	NYSE	ERF	Fri, Sep 2, 2022	15.56	15.74	15.33	15.55
5475	NYSE	ERF	Thu, Sep 1, 2022	15.19	15.20	14.73	15.02
5474	NYSE	ERF	Wed, Aug 31, 2022	14.87	15.70	14.76	15.41
5473	NYSE	ERF	Tue, Aug 30, 2022	15.90	15.95	15.16	15.32
5472	NYSE	ERF	Mon, Aug 29, 2022	15.74	16.48	15.67	16.24
5471	NYSE	ERF	Fri, Aug 26, 2022	15.83	16.10	15.64	15.75
5470	NYSE	ERF	Thu, Aug 25, 2022	16.02	16.15	15.61	15.81
5469	NYSE	ERF	Wed, Aug 24, 2022	15.48	15.89	15.39	15.85
5468	NYSE	ERF	Tue, Aug 23, 2022	15.17	15.93	15.13	15.44
5467	NYSE	ERF	Mon, Aug 22, 2022	14.56	14.85	14.31	14.81
5466	NYSE	ERF	Fri, Aug 19, 2022	14.58	14.86	14.48	14.76
5465	NYSE	ERF	Thu, Aug 18, 2022	14.74	14.91	14.62	14.81
5464	NYSE	ERF	Wed, Aug 17, 2022	14.01	14.65	14.00	14.39
5463	NYSE	ERF	Tue, Aug 16, 2022	14.46	14.71	13.96	14.04
5462	NYSE	ERF	Mon, Aug 15, 2022	13.82	14.29	13.39	14.27
5461	NYSE	ERF	Fri, Aug 12, 2022	14.01	14.64	13.80	14.58
5460	NYSE	ERF	Thu, Aug 11, 2022	13.82	14.35	13.79	14.19
5459	NYSE	ERF	Wed, Aug 10, 2022	13.37	13.64	13.07	13.56
5458	NYSE	ERF	Tue, Aug 9, 2022	13.57	13.75	13.13	13.39
5457	NYSE	ERF	Mon, Aug 8, 2022	13.07	13.47	13.00	13.32
5456	NYSE	ERF	Fri, Aug 5, 2022	12.09	13.38	12.09	13.14
5455	NYSE	ERF	Thu, Aug 4, 2022	12.72	12.81	12.04	12.15
5454	NYSE	ERF	Wed, Aug 3, 2022	13.90	13.90	12.68	12.87
5453	NYSE	ERF	Tue, Aug 2, 2022	13.42	13.72	13.26	13.65
5452	NYSE	ERF	Mon, Aug 1, 2022	13.60	13.77	13.30	13.49
5451	NYSE	ERF	Fri, Jul 29, 2022	13.97	14.11	13.78	13.96
5450	NYSE	ERF	Thu, Jul 28, 2022	13.60	13.84	13.25	13.72
5449	NYSE	ERF	Wed, Jul 27, 2022	13.16	13.45	13.00	13.39
5448	NYSE	ERF	Tue, Jul 26, 2022	13.36	13.55	12.86	13.05
5447	NYSE	ERF	Mon, Jul 25, 2022	12.76	13.23	12.63	13.19
5446	NYSE	ERF	Fri, Jul 22, 2022	12.87	13.09	12.42	12.50
5445	NYSE	ERF	Thu, Jul 21, 2022	12.66	12.95	12.46	12.94
5444	NYSE	ERF	Wed, Jul 20, 2022	13.14	13.38	12.80	13.34
5443	NYSE	ERF	Tue, Jul 19, 2022	12.58	13.33	12.53	13.28
5442	NYSE	ERF	Mon, Jul 18, 2022	12.51	12.97	12.49	12.73
5441	NYSE	ERF	Fri, Jul 15, 2022	11.97	12.11	11.75	12.06
5440	NYSE	ERF	Thu, Jul 14, 2022	11.45	11.75	11.00	11.71
5439	NYSE	ERF	Wed, Jul 13, 2022	11.79	12.38	11.79	12.07
5438	NYSE	ERF	Tue, Jul 12, 2022	12.01	12.21	11.76	12.03
5437	NYSE	ERF	Mon, Jul 11, 2022	12.57	12.77	12.33	12.61
5436	NYSE	ERF	Fri, Jul 8, 2022	13.11	13.19	12.69	12.81
5435	NYSE	ERF	Thu, Jul 7, 2022	12.47	13.13	12.42	12.93
5434	NYSE	ERF	Wed, Jul 6, 2022	12.27	12.67	11.31	11.93
5433	NYSE	ERF	Tue, Jul 5, 2022	13.09	13.12	12.03	12.51
5432	NYSE	ERF	Fri, Jul 1, 2022	13.45	13.57	12.87	13.33
5431	NYSE	ERF	Thu, Jun 30, 2022	13.46	13.70	12.86	13.23
5430	NYSE	ERF	Wed, Jun 29, 2022	15.04	15.07	13.83	13.86
5429	NYSE	ERF	Tue, Jun 28, 2022	14.29	14.67	13.94	14.62
5428	NYSE	ERF	Mon, Jun 27, 2022	13.28	13.86	13.06	13.80
5427	NYSE	ERF	Fri, Jun 24, 2022	12.78	13.43	12.60	12.95
5426	NYSE	ERF	Thu, Jun 23, 2022	14.07	14.12	12.46	12.52
5425	NYSE	ERF	Wed, Jun 22, 2022	13.32	14.31	13.30	13.85
5424	NYSE	ERF	Tue, Jun 21, 2022	14.68	15.10	14.59	15.02
5423	NYSE	ERF	Fri, Jun 17, 2022	15.31	15.42	13.89	14.08
5422	NYSE	ERF	Thu, Jun 16, 2022	15.87	16.08	15.25	15.40
5421	NYSE	ERF	Wed, Jun 15, 2022	16.37	16.78	15.95	16.50
5420	NYSE	ERF	Tue, Jun 14, 2022	17.23	17.40	16.07	16.45
5419	NYSE	ERF	Mon, Jun 13, 2022	16.79	17.19	15.94	16.76
5418	NYSE	ERF	Fri, Jun 10, 2022	17.52	17.92	17.22	17.61
5417	NYSE	ERF	Thu, Jun 9, 2022	17.84	18.22	17.51	17.82
5416	NYSE	ERF	Wed, Jun 8, 2022	17.76	18.58	17.73	18.04
5415	NYSE	ERF	Tue, Jun 7, 2022	16.76	17.68	16.59	17.51
5414	NYSE	ERF	Mon, Jun 6, 2022	16.28	16.87	16.22	16.86
5413	NYSE	ERF	Fri, Jun 3, 2022	15.44	16.16	15.43	16.04
5412	NYSE	ERF	Thu, Jun 2, 2022	14.95	15.67	14.88	15.43
5411	NYSE	ERF	Wed, Jun 1, 2022	15.12	15.33	14.82	15.17
5410	NYSE	ERF	Tue, May 31, 2022	15.32	15.50	14.60	14.84
5409	NYSE	ERF	Fri, May 27, 2022	14.60	14.99	14.46	14.99
5408	NYSE	ERF	Thu, May 26, 2022	14.36	14.83	14.33	14.59
5407	NYSE	ERF	Wed, May 25, 2022	13.35	14.23	13.35	14.15
5406	NYSE	ERF	Tue, May 24, 2022	12.90	13.37	12.80	13.34
5405	NYSE	ERF	Mon, May 23, 2022	12.82	13.17	12.67	13.09
5404	NYSE	ERF	Fri, May 20, 2022	12.70	12.93	12.34	12.66
5403	NYSE	ERF	Thu, May 19, 2022	12.32	12.85	12.25	12.57
5402	NYSE	ERF	Wed, May 18, 2022	13.09	13.20	12.39	12.58
5401	NYSE	ERF	Tue, May 17, 2022	13.07	13.22	12.95	13.02
5400	NYSE	ERF	Mon, May 16, 2022	12.46	13.08	12.45	12.87
5399	NYSE	ERF	Fri, May 13, 2022	12.02	12.59	12.01	12.47
5398	NYSE	ERF	Thu, May 12, 2022	12.00	12.05	11.51	11.76
5397	NYSE	ERF	Wed, May 11, 2022	11.89	12.52	11.78	12.04
5396	NYSE	ERF	Tue, May 10, 2022	11.69	12.07	11.25	11.59
5395	NYSE	ERF	Mon, May 9, 2022	12.76	12.76	11.47	11.51
5394	NYSE	ERF	Fri, May 6, 2022	13.40	13.54	12.77	13.18
5393	NYSE	ERF	Thu, May 5, 2022	13.57	13.69	12.68	13.04
5392	NYSE	ERF	Wed, May 4, 2022	13.18	13.53	12.89	13.52
5391	NYSE	ERF	Tue, May 3, 2022	12.10	12.86	12.09	12.79
5390	NYSE	ERF	Mon, May 2, 2022	11.99	12.21	11.70	12.10
5389	NYSE	ERF	Fri, Apr 29, 2022	12.75	12.96	12.13	12.24
5388	NYSE	ERF	Thu, Apr 28, 2022	12.19	12.78	11.85	12.66
5387	NYSE	ERF	Wed, Apr 27, 2022	12.07	12.19	11.68	12.10
5386	NYSE	ERF	Tue, Apr 26, 2022	12.19	12.40	11.78	12.00
5385	NYSE	ERF	Mon, Apr 25, 2022	12.06	12.22	11.58	12.09
5384	NYSE	ERF	Fri, Apr 22, 2022	12.98	13.16	12.45	12.52
5383	NYSE	ERF	Thu, Apr 21, 2022	13.99	14.07	13.06	13.11
5382	NYSE	ERF	Wed, Apr 20, 2022	13.65	14.01	13.64	13.85
5381	NYSE	ERF	Tue, Apr 19, 2022	13.60	13.84	13.47	13.53
5380	NYSE	ERF	Mon, Apr 18, 2022	13.64	13.98	13.63	13.80
5379	NYSE	ERF	Thu, Apr 14, 2022	13.37	13.63	13.29	13.46
5378	NYSE	ERF	Wed, Apr 13, 2022	13.26	13.71	13.17	13.49
5377	NYSE	ERF	Tue, Apr 12, 2022	13.05	13.35	12.99	13.05
5376	NYSE	ERF	Mon, Apr 11, 2022	13.10	13.13	12.59	12.68
5375	NYSE	ERF	Fri, Apr 8, 2022	12.86	13.38	12.81	13.33
5374	NYSE	ERF	Thu, Apr 7, 2022	12.49	12.86	12.41	12.82
5373	NYSE	ERF	Wed, Apr 6, 2022	12.73	12.89	12.27	12.38
5372	NYSE	ERF	Tue, Apr 5, 2022	13.24	13.39	12.56	12.60
5371	NYSE	ERF	Mon, Apr 4, 2022	13.04	13.19	12.74	13.14
5370	NYSE	ERF	Fri, Apr 1, 2022	12.75	13.02	12.68	12.78
5369	NYSE	ERF	Thu, Mar 31, 2022	12.96	13.11	12.69	12.70
5368	NYSE	ERF	Wed, Mar 30, 2022	13.37	13.63	13.10	13.16
5367	NYSE	ERF	Tue, Mar 29, 2022	12.78	13.20	12.44	13.15
5366	NYSE	ERF	Mon, Mar 28, 2022	13.47	13.53	13.21	13.28
5365	NYSE	ERF	Fri, Mar 25, 2022	13.23	13.89	13.21	13.86
5364	NYSE	ERF	Thu, Mar 24, 2022	13.16	13.54	13.12	13.36
5363	NYSE	ERF	Wed, Mar 23, 2022	13.14	13.41	13.04	13.15
5362	NYSE	ERF	Tue, Mar 22, 2022	12.97	13.04	12.61	12.84
5361	NYSE	ERF	Mon, Mar 21, 2022	12.69	13.13	12.58	13.01
5360	NYSE	ERF	Fri, Mar 18, 2022	12.62	12.76	12.31	12.36
5359	NYSE	ERF	Thu, Mar 17, 2022	12.55	12.84	12.42	12.69
5358	NYSE	ERF	Wed, Mar 16, 2022	12.33	12.48	12.01	12.19
5357	NYSE	ERF	Tue, Mar 15, 2022	11.75	12.34	11.42	12.26
5356	NYSE	ERF	Mon, Mar 14, 2022	12.84	12.90	12.05	12.53
5355	NYSE	ERF	Fri, Mar 11, 2022	13.37	13.61	13.19	13.20
5354	NYSE	ERF	Thu, Mar 10, 2022	13.67	13.84	13.19	13.59
5353	NYSE	ERF	Wed, Mar 9, 2022	13.28	13.62	12.96	13.46
5352	NYSE	ERF	Tue, Mar 8, 2022	14.29	14.55	13.56	13.92
5351	NYSE	ERF	Mon, Mar 7, 2022	13.92	14.59	13.59	13.91
5350	NYSE	ERF	Fri, Mar 4, 2022	12.67	13.52	12.65	13.52
5349	NYSE	ERF	Thu, Mar 3, 2022	13.17	13.17	12.44	12.64
5348	NYSE	ERF	Wed, Mar 2, 2022	13.51	13.63	13.01	13.13
5347	NYSE	ERF	Tue, Mar 1, 2022	12.99	13.43	12.80	13.17
5346	NYSE	ERF	Mon, Feb 28, 2022	12.26	12.81	12.19	12.78
5345	NYSE	ERF	Fri, Feb 25, 2022	11.93	12.26	11.62	12.24
5344	NYSE	ERF	Thu, Feb 24, 2022	12.10	12.16	11.53	11.94
5343	NYSE	ERF	Wed, Feb 23, 2022	11.62	12.09	11.59	11.77
5342	NYSE	ERF	Tue, Feb 22, 2022	11.97	12.14	11.38	11.54
5341	NYSE	ERF	Fri, Feb 18, 2022	11.75	11.90	11.54	11.62
5340	NYSE	ERF	Thu, Feb 17, 2022	12.02	12.30	11.84	11.95
5339	NYSE	ERF	Wed, Feb 16, 2022	12.18	12.58	11.95	12.02
5338	NYSE	ERF	Tue, Feb 15, 2022	11.55	12.04	11.43	11.97
5337	NYSE	ERF	Mon, Feb 14, 2022	11.96	12.08	11.74	11.86
5336	NYSE	ERF	Fri, Feb 11, 2022	11.69	12.22	11.65	12.07
5335	NYSE	ERF	Thu, Feb 10, 2022	11.50	11.96	11.42	11.56
5334	NYSE	ERF	Wed, Feb 9, 2022	11.38	11.82	11.34	11.65
5333	NYSE	ERF	Tue, Feb 8, 2022	11.77	11.77	11.23	11.31
5332	NYSE	ERF	Mon, Feb 7, 2022	11.97	12.09	11.72	11.91
5331	NYSE	ERF	Fri, Feb 4, 2022	12.25	12.65	12.01	12.10
5330	NYSE	ERF	Thu, Feb 3, 2022	12.19	12.21	11.74	12.08
5329	NYSE	ERF	Wed, Feb 2, 2022	12.12	12.24	11.84	12.19
5328	NYSE	ERF	Tue, Feb 1, 2022	11.57	12.04	11.47	12.04
5327	NYSE	ERF	Mon, Jan 31, 2022	11.20	11.64	11.09	11.57
5326	NYSE	ERF	Fri, Jan 28, 2022	11.06	11.25	10.92	11.19
5325	NYSE	ERF	Thu, Jan 27, 2022	11.55	11.67	10.82	11.04
5324	NYSE	ERF	Wed, Jan 26, 2022	11.71	11.82	11.05	11.20
5323	NYSE	ERF	Tue, Jan 25, 2022	10.80	11.46	10.63	11.38
5322	NYSE	ERF	Mon, Jan 24, 2022	10.47	10.98	10.21	10.92
5321	NYSE	ERF	Fri, Jan 21, 2022	11.09	11.29	10.72	10.93
5320	NYSE	ERF	Thu, Jan 20, 2022	11.52	11.92	11.34	11.35
5319	NYSE	ERF	Wed, Jan 19, 2022	11.90	11.94	11.41	11.61
5318	NYSE	ERF	Tue, Jan 18, 2022	12.15	12.26	11.54	11.71
5317	NYSE	ERF	Fri, Jan 14, 2022	11.44	11.97	11.40	11.95
5316	NYSE	ERF	Thu, Jan 13, 2022	11.61	11.72	11.28	11.33
5315	NYSE	ERF	Wed, Jan 12, 2022	11.50	11.88	11.50	11.71
5314	NYSE	ERF	Tue, Jan 11, 2022	11.25	11.50	11.07	11.33
5313	NYSE	ERF	Mon, Jan 10, 2022	11.02	11.17	10.87	11.09
5312	NYSE	ERF	Fri, Jan 7, 2022	11.17	11.25	10.92	11.10
5311	NYSE	ERF	Thu, Jan 6, 2022	11.08	11.33	10.77	11.13
5310	NYSE	ERF	Wed, Jan 5, 2022	11.12	11.27	10.59	10.61
5309	NYSE	ERF	Tue, Jan 4, 2022	10.98	11.16	10.81	10.97
5308	NYSE	ERF	Mon, Jan 3, 2022	10.59	11.08	10.52	10.99
5307	NYSE	ERF	Fri, Dec 31, 2021	10.34	10.60	10.27	10.58
5306	NYSE	ERF	Thu, Dec 30, 2021	10.58	10.62	10.30	10.36
5305	NYSE	ERF	Wed, Dec 29, 2021	10.63	10.72	10.38	10.51
5304	NYSE	ERF	Tue, Dec 28, 2021	10.85	11.18	10.72	10.74
5303	NYSE	ERF	Mon, Dec 27, 2021	10.14	10.89	9.98	10.87
5302	NYSE	ERF	Thu, Dec 23, 2021	9.97	10.21	9.93	10.12
5301	NYSE	ERF	Wed, Dec 22, 2021	9.66	10.11	9.54	9.91
5300	NYSE	ERF	Tue, Dec 21, 2021	9.39	9.76	9.31	9.74
5299	NYSE	ERF	Mon, Dec 20, 2021	8.73	9.15	8.59	9.14
5298	NYSE	ERF	Fri, Dec 17, 2021	9.60	9.71	9.09	9.12
5297	NYSE	ERF	Thu, Dec 16, 2021	9.97	10.33	9.77	9.79
5296	NYSE	ERF	Wed, Dec 15, 2021	9.55	9.75	9.16	9.73
5295	NYSE	ERF	Tue, Dec 14, 2021	9.88	10.06	9.61	9.64
5294	NYSE	ERF	Mon, Dec 13, 2021	10.61	10.65	10.07	10.08
5293	NYSE	ERF	Fri, Dec 10, 2021	10.66	10.77	10.46	10.74
5292	NYSE	ERF	Thu, Dec 9, 2021	10.46	10.57	10.36	10.46
5291	NYSE	ERF	Wed, Dec 8, 2021	10.72	10.91	10.48	10.61
5290	NYSE	ERF	Tue, Dec 7, 2021	10.12	10.79	10.12	10.67
5289	NYSE	ERF	Mon, Dec 6, 2021	9.83	10.07	9.67	9.91
5288	NYSE	ERF	Fri, Dec 3, 2021	9.67	9.94	9.38	9.55
5287	NYSE	ERF	Thu, Dec 2, 2021	9.20	9.55	8.84	9.47
5286	NYSE	ERF	Wed, Dec 1, 2021	9.77	9.88	9.26	9.26
5285	NYSE	ERF	Tue, Nov 30, 2021	9.57	9.79	9.21	9.44
5284	NYSE	ERF	Mon, Nov 29, 2021	10.33	10.33	9.71	9.85
5283	NYSE	ERF	Fri, Nov 26, 2021	9.63	9.86	9.44	9.75
5282	NYSE	ERF	Wed, Nov 24, 2021	10.45	10.81	10.45	10.61
5281	NYSE	ERF	Tue, Nov 23, 2021	9.99	10.66	9.98	10.59
5280	NYSE	ERF	Mon, Nov 22, 2021	9.44	10.02	9.40	9.78
5279	NYSE	ERF	Fri, Nov 19, 2021	9.79	9.79	9.38	9.55
5278	NYSE	ERF	Thu, Nov 18, 2021	9.80	10.31	9.79	10.14
5277	NYSE	ERF	Wed, Nov 17, 2021	9.98	10.32	9.82	9.82
5276	NYSE	ERF	Tue, Nov 16, 2021	10.20	10.34	9.99	10.05
5275	NYSE	ERF	Mon, Nov 15, 2021	10.04	10.29	9.66	10.19
5274	NYSE	ERF	Fri, Nov 12, 2021	10.09	10.29	9.97	10.12
5273	NYSE	ERF	Thu, Nov 11, 2021	10.09	10.48	10.09	10.19
5272	NYSE	ERF	Wed, Nov 10, 2021	10.72	10.77	10.07	10.13
5271	NYSE	ERF	Tue, Nov 9, 2021	10.49	10.76	10.27	10.70
5270	NYSE	ERF	Mon, Nov 8, 2021	10.40	10.62	10.25	10.44
5269	NYSE	ERF	Fri, Nov 5, 2021	9.68	10.23	9.19	10.20
5268	NYSE	ERF	Thu, Nov 4, 2021	9.50	9.71	9.40	9.49
5267	NYSE	ERF	Wed, Nov 3, 2021	9.47	9.70	9.42	9.48
5266	NYSE	ERF	Tue, Nov 2, 2021	9.66	9.80	9.55	9.67
5265	NYSE	ERF	Mon, Nov 1, 2021	9.65	9.81	9.58	9.73
5264	NYSE	ERF	Fri, Oct 29, 2021	9.52	9.53	9.23	9.47
5263	NYSE	ERF	Thu, Oct 28, 2021	9.10	9.52	9.09	9.52
5262	NYSE	ERF	Wed, Oct 27, 2021	9.47	9.56	9.17	9.19
5261	NYSE	ERF	Tue, Oct 26, 2021	9.57	9.64	9.47	9.53
5260	NYSE	ERF	Mon, Oct 25, 2021	9.49	9.77	9.38	9.54
5259	NYSE	ERF	Fri, Oct 22, 2021	9.32	9.47	9.14	9.34
5258	NYSE	ERF	Thu, Oct 21, 2021	9.39	9.41	9.06	9.28
5257	NYSE	ERF	Wed, Oct 20, 2021	8.90	9.48	8.82	9.43
5256	NYSE	ERF	Tue, Oct 19, 2021	9.17	9.25	9.01	9.05
5255	NYSE	ERF	Mon, Oct 18, 2021	9.45	9.59	9.04	9.11
5254	NYSE	ERF	Fri, Oct 15, 2021	9.43	9.65	9.28	9.28
5253	NYSE	ERF	Thu, Oct 14, 2021	8.97	9.30	8.95	9.29
5252	NYSE	ERF	Wed, Oct 13, 2021	8.67	8.85	8.54	8.77
5251	NYSE	ERF	Tue, Oct 12, 2021	9.01	9.03	8.72	8.78
5250	NYSE	ERF	Mon, Oct 11, 2021	9.15	9.21	8.94	9.05
5249	NYSE	ERF	Fri, Oct 8, 2021	8.91	9.14	8.91	8.95
5248	NYSE	ERF	Thu, Oct 7, 2021	8.44	8.87	8.31	8.80
5247	NYSE	ERF	Wed, Oct 6, 2021	8.23	8.54	8.16	8.45
5246	NYSE	ERF	Tue, Oct 5, 2021	8.59	8.71	8.37	8.45
5245	NYSE	ERF	Mon, Oct 4, 2021	8.14	8.60	8.11	8.38
5244	NYSE	ERF	Fri, Oct 1, 2021	8.05	8.11	7.90	8.01
5243	NYSE	ERF	Thu, Sep 30, 2021	7.98	8.14	7.80	8.00
5242	NYSE	ERF	Wed, Sep 29, 2021	7.87	8.05	7.65	7.99
5241	NYSE	ERF	Tue, Sep 28, 2021	8.07	8.13	7.78	7.87
5240	NYSE	ERF	Mon, Sep 27, 2021	7.48	7.93	7.45	7.91
5239	NYSE	ERF	Fri, Sep 24, 2021	6.76	7.26	6.71	7.18
5238	NYSE	ERF	Thu, Sep 23, 2021	6.56	6.91	6.52	6.85
5237	NYSE	ERF	Wed, Sep 22, 2021	6.44	6.65	6.44	6.49
5236	NYSE	ERF	Tue, Sep 21, 2021	6.14	6.35	6.00	6.28
5235	NYSE	ERF	Mon, Sep 20, 2021	6.00	6.16	5.89	6.05
5234	NYSE	ERF	Fri, Sep 17, 2021	6.51	6.59	6.38	6.39
5233	NYSE	ERF	Thu, Sep 16, 2021	6.57	6.61	6.43	6.57
5232	NYSE	ERF	Wed, Sep 15, 2021	6.32	6.63	6.32	6.61
5231	NYSE	ERF	Tue, Sep 14, 2021	6.34	6.37	6.16	6.19
5230	NYSE	ERF	Mon, Sep 13, 2021	5.99	6.33	5.99	6.28
5229	NYSE	ERF	Fri, Sep 10, 2021	6.05	6.08	5.86	5.87
5228	NYSE	ERF	Thu, Sep 9, 2021	5.84	5.95	5.76	5.90
5227	NYSE	ERF	Wed, Sep 8, 2021	6.10	6.17	5.86	5.87
5226	NYSE	ERF	Tue, Sep 7, 2021	6.05	6.24	6.03	6.04
5225	NYSE	ERF	Fri, Sep 3, 2021	6.11	6.21	6.06	6.13
5224	NYSE	ERF	Thu, Sep 2, 2021	5.84	6.23	5.84	6.17
5223	NYSE	ERF	Wed, Sep 1, 2021	5.95	5.99	5.79	5.80
5222	NYSE	ERF	Tue, Aug 31, 2021	5.77	6.00	5.67	5.92
5221	NYSE	ERF	Mon, Aug 30, 2021	5.85	5.92	5.74	5.76
5220	NYSE	ERF	Fri, Aug 27, 2021	5.67	6.00	5.67	5.81
5219	NYSE	ERF	Thu, Aug 26, 2021	5.60	5.68	5.52	5.59
5218	NYSE	ERF	Wed, Aug 25, 2021	5.50	5.60	5.44	5.56
5217	NYSE	ERF	Tue, Aug 24, 2021	5.51	5.58	5.43	5.49
5216	NYSE	ERF	Mon, Aug 23, 2021	5.17	5.39	5.16	5.37
5215	NYSE	ERF	Fri, Aug 20, 2021	4.81	4.98	4.80	4.96
5214	NYSE	ERF	Thu, Aug 19, 2021	5.01	5.10	4.78	4.91
5213	NYSE	ERF	Wed, Aug 18, 2021	5.37	5.44	5.21	5.21
5212	NYSE	ERF	Tue, Aug 17, 2021	5.36	5.51	5.30	5.36
5211	NYSE	ERF	Mon, Aug 16, 2021	5.58	5.59	5.42	5.44
5210	NYSE	ERF	Fri, Aug 13, 2021	5.82	5.85	5.69	5.70
5209	NYSE	ERF	Thu, Aug 12, 2021	5.93	5.98	5.74	5.80
5208	NYSE	ERF	Wed, Aug 11, 2021	5.82	5.91	5.69	5.90
5207	NYSE	ERF	Tue, Aug 10, 2021	5.73	5.93	5.73	5.92
5206	NYSE	ERF	Mon, Aug 9, 2021	5.80	5.80	5.57	5.69
5205	NYSE	ERF	Fri, Aug 6, 2021	5.87	6.00	5.80	5.92
5204	NYSE	ERF	Thu, Aug 5, 2021	5.79	5.96	5.70	5.82
5203	NYSE	ERF	Wed, Aug 4, 2021	6.08	6.11	5.71	5.71
5202	NYSE	ERF	Tue, Aug 3, 2021	6.02	6.29	5.94	6.22
5201	NYSE	ERF	Mon, Aug 2, 2021	6.21	6.44	6.09	6.09
5200	NYSE	ERF	Fri, Jul 30, 2021	6.18	6.24	6.01	6.23
5199	NYSE	ERF	Thu, Jul 29, 2021	6.29	6.29	6.12	6.20
5198	NYSE	ERF	Wed, Jul 28, 2021	6.04	6.19	5.98	6.17
5197	NYSE	ERF	Tue, Jul 27, 2021	6.24	6.24	5.94	6.03
5196	NYSE	ERF	Mon, Jul 26, 2021	6.09	6.33	6.08	6.29
5195	NYSE	ERF	Fri, Jul 23, 2021	6.18	6.19	6.04	6.09
5194	NYSE	ERF	Thu, Jul 22, 2021	6.17	6.19	5.96	6.12
5193	NYSE	ERF	Wed, Jul 21, 2021	6.07	6.21	6.02	6.10
5192	NYSE	ERF	Tue, Jul 20, 2021	5.82	5.99	5.72	5.92
5191	NYSE	ERF	Mon, Jul 19, 2021	5.78	5.92	5.61	5.81
5190	NYSE	ERF	Fri, Jul 16, 2021	6.45	6.50	6.09	6.10
5189	NYSE	ERF	Thu, Jul 15, 2021	6.52	6.61	6.34	6.38
5188	NYSE	ERF	Wed, Jul 14, 2021	6.88	7.03	6.55	6.59
5187	NYSE	ERF	Tue, Jul 13, 2021	6.83	6.83	6.59	6.79
5186	NYSE	ERF	Mon, Jul 12, 2021	6.74	6.91	6.65	6.89
5185	NYSE	ERF	Fri, Jul 9, 2021	6.82	6.94	6.70	6.89
5184	NYSE	ERF	Thu, Jul 8, 2021	6.56	6.82	6.43	6.71
5183	NYSE	ERF	Wed, Jul 7, 2021	6.90	7.04	6.57	6.66
5182	NYSE	ERF	Tue, Jul 6, 2021	7.16	7.17	6.84	6.90
5181	NYSE	ERF	Fri, Jul 2, 2021	7.38	7.38	7.10	7.12
5180	NYSE	ERF	Thu, Jul 1, 2021	7.38	7.50	7.32	7.42
5179	NYSE	ERF	Wed, Jun 30, 2021	7.15	7.28	7.13	7.19
5178	NYSE	ERF	Tue, Jun 29, 2021	7.10	7.27	7.04	7.09
5177	NYSE	ERF	Mon, Jun 28, 2021	7.47	7.47	6.99	7.00
5176	NYSE	ERF	Fri, Jun 25, 2021	7.47	7.54	7.33	7.49
5175	NYSE	ERF	Thu, Jun 24, 2021	7.29	7.46	7.20	7.42
5174	NYSE	ERF	Wed, Jun 23, 2021	7.16	7.36	7.16	7.25
5173	NYSE	ERF	Tue, Jun 22, 2021	7.13	7.14	6.93	7.08
5172	NYSE	ERF	Mon, Jun 21, 2021	6.67	7.23	6.67	7.17
5171	NYSE	ERF	Fri, Jun 18, 2021	6.62	6.77	6.51	6.56
5170	NYSE	ERF	Thu, Jun 17, 2021	7.12	7.15	6.54	6.76
5169	NYSE	ERF	Wed, Jun 16, 2021	7.15	7.36	7.12	7.20
5168	NYSE	ERF	Tue, Jun 15, 2021	7.04	7.22	7.01	7.19
5167	NYSE	ERF	Mon, Jun 14, 2021	7.13	7.19	6.96	7.00
5166	NYSE	ERF	Fri, Jun 11, 2021	7.20	7.23	7.05	7.09
5165	NYSE	ERF	Thu, Jun 10, 2021	7.16	7.23	7.03	7.16
5164	NYSE	ERF	Wed, Jun 9, 2021	7.14	7.16	7.01	7.04
5163	NYSE	ERF	Tue, Jun 8, 2021	7.01	7.11	6.86	7.08
5162	NYSE	ERF	Mon, Jun 7, 2021	7.10	7.23	6.98	7.02
5161	NYSE	ERF	Fri, Jun 4, 2021	7.15	7.21	6.99	7.12
5160	NYSE	ERF	Thu, Jun 3, 2021	7.34	7.34	7.07	7.08
5159	NYSE	ERF	Wed, Jun 2, 2021	7.28	7.46	7.09	7.37
5158	NYSE	ERF	Tue, Jun 1, 2021	6.81	7.16	6.79	7.15
5157	NYSE	ERF	Fri, May 28, 2021	6.37	6.59	6.36	6.55
5156	NYSE	ERF	Thu, May 27, 2021	6.25	6.41	6.22	6.36
5155	NYSE	ERF	Wed, May 26, 2021	6.00	6.25	5.95	6.19
5154	NYSE	ERF	Tue, May 25, 2021	6.12	6.20	5.98	6.00
5153	NYSE	ERF	Mon, May 24, 2021	6.14	6.21	6.00	6.17
5152	NYSE	ERF	Fri, May 21, 2021	6.10	6.13	6.01	6.06
5151	NYSE	ERF	Thu, May 20, 2021	6.16	6.17	5.91	6.01
5150	NYSE	ERF	Wed, May 19, 2021	6.18	6.29	6.04	6.16
5149	NYSE	ERF	Tue, May 18, 2021	6.48	6.62	6.33	6.35
5148	NYSE	ERF	Mon, May 17, 2021	6.20	6.41	6.17	6.41
5147	NYSE	ERF	Fri, May 14, 2021	6.11	6.23	6.07	6.19
5146	NYSE	ERF	Thu, May 13, 2021	6.11	6.18	5.84	6.00
5145	NYSE	ERF	Wed, May 12, 2021	6.18	6.48	6.18	6.22
5144	NYSE	ERF	Tue, May 11, 2021	5.97	6.24	5.89	6.12
5143	NYSE	ERF	Mon, May 10, 2021	6.21	6.36	6.06	6.20
5142	NYSE	ERF	Fri, May 7, 2021	5.74	6.11	5.64	6.09
5141	NYSE	ERF	Thu, May 6, 2021	5.83	5.86	5.60	5.74
5140	NYSE	ERF	Wed, May 5, 2021	5.69	5.90	5.61	5.82
5139	NYSE	ERF	Tue, May 4, 2021	5.60	5.65	5.47	5.60
5138	NYSE	ERF	Mon, May 3, 2021	5.40	5.59	5.39	5.57
5137	NYSE	ERF	Fri, Apr 30, 2021	5.39	5.55	5.35	5.37
5136	NYSE	ERF	Thu, Apr 29, 2021	5.59	5.68	5.46	5.53
5135	NYSE	ERF	Wed, Apr 28, 2021	5.25	5.53	5.24	5.47
5134	NYSE	ERF	Tue, Apr 27, 2021	5.17	5.27	5.13	5.22
5133	NYSE	ERF	Mon, Apr 26, 2021	5.14	5.24	5.09	5.17
5132	NYSE	ERF	Fri, Apr 23, 2021	5.01	5.21	4.99	5.14
5131	NYSE	ERF	Thu, Apr 22, 2021	5.15	5.15	4.98	5.02
5130	NYSE	ERF	Wed, Apr 21, 2021	4.96	5.16	4.89	5.13
5129	NYSE	ERF	Tue, Apr 20, 2021	5.21	5.23	4.97	5.03
5128	NYSE	ERF	Mon, Apr 19, 2021	5.32	5.38	5.21	5.23
5127	NYSE	ERF	Fri, Apr 16, 2021	5.45	5.46	5.26	5.31
5126	NYSE	ERF	Thu, Apr 15, 2021	5.62	5.62	5.36	5.42
5125	NYSE	ERF	Wed, Apr 14, 2021	5.39	5.64	5.39	5.59
5124	NYSE	ERF	Tue, Apr 13, 2021	5.50	5.53	5.29	5.35
5123	NYSE	ERF	Mon, Apr 12, 2021	5.56	5.60	5.38	5.43
5122	NYSE	ERF	Fri, Apr 9, 2021	5.29	5.56	5.20	5.47
5121	NYSE	ERF	Thu, Apr 8, 2021	4.90	5.29	4.83	5.24
5120	NYSE	ERF	Wed, Apr 7, 2021	5.00	5.04	4.88	4.90
5119	NYSE	ERF	Tue, Apr 6, 2021	5.08	5.19	4.98	4.98
5118	NYSE	ERF	Mon, Apr 5, 2021	5.25	5.27	4.95	5.02
5117	NYSE	ERF	Thu, Apr 1, 2021	5.07	5.27	4.99	5.27
5116	NYSE	ERF	Wed, Mar 31, 2021	5.04	5.07	4.95	5.01
5115	NYSE	ERF	Tue, Mar 30, 2021	4.95	5.04	4.88	5.02
5114	NYSE	ERF	Mon, Mar 29, 2021	5.10	5.15	4.92	5.05
5113	NYSE	ERF	Fri, Mar 26, 2021	5.11	5.17	5.02	5.15
5112	NYSE	ERF	Thu, Mar 25, 2021	4.90	5.00	4.71	4.92
5111	NYSE	ERF	Wed, Mar 24, 2021	5.12	5.33	5.12	5.16
5110	NYSE	ERF	Tue, Mar 23, 2021	5.02	5.18	4.98	5.00
5109	NYSE	ERF	Mon, Mar 22, 2021	5.44	5.45	5.22	5.23
5108	NYSE	ERF	Fri, Mar 19, 2021	5.31	5.52	5.19	5.44
5107	NYSE	ERF	Thu, Mar 18, 2021	5.71	5.73	5.22	5.27
5106	NYSE	ERF	Wed, Mar 17, 2021	5.36	5.82	5.30	5.81
5105	NYSE	ERF	Tue, Mar 16, 2021	5.48	5.50	5.30	5.37
5104	NYSE	ERF	Mon, Mar 15, 2021	5.60	5.65	5.45	5.56
5103	NYSE	ERF	Fri, Mar 12, 2021	5.70	5.75	5.57	5.67
5102	NYSE	ERF	Thu, Mar 11, 2021	5.53	5.71	5.49	5.69
5101	NYSE	ERF	Wed, Mar 10, 2021	5.15	5.51	5.11	5.45
5100	NYSE	ERF	Tue, Mar 9, 2021	5.25	5.32	5.09	5.13
5099	NYSE	ERF	Mon, Mar 8, 2021	5.39	5.40	5.15	5.23
5098	NYSE	ERF	Fri, Mar 5, 2021	5.25	5.46	5.11	5.37
5097	NYSE	ERF	Thu, Mar 4, 2021	4.93	5.19	4.74	5.10
5096	NYSE	ERF	Wed, Mar 3, 2021	4.89	4.96	4.81	4.87
5095	NYSE	ERF	Tue, Mar 2, 2021	4.80	4.97	4.78	4.82
5094	NYSE	ERF	Mon, Mar 1, 2021	4.96	5.03	4.73	4.78
5093	NYSE	ERF	Fri, Feb 26, 2021	4.88	4.99	4.69	4.84
5092	NYSE	ERF	Thu, Feb 25, 2021	5.35	5.35	4.93	5.00
5091	NYSE	ERF	Wed, Feb 24, 2021	5.18	5.42	5.15	5.25
5090	NYSE	ERF	Tue, Feb 23, 2021	4.87	5.17	4.66	5.13
5089	NYSE	ERF	Mon, Feb 22, 2021	4.50	5.03	4.47	4.91
5088	NYSE	ERF	Fri, Feb 19, 2021	4.30	4.50	4.23	4.46
5087	NYSE	ERF	Thu, Feb 18, 2021	4.59	4.65	4.45	4.47
5086	NYSE	ERF	Wed, Feb 17, 2021	4.55	4.63	4.43	4.61
5085	NYSE	ERF	Tue, Feb 16, 2021	4.90	4.90	4.50	4.57
5084	NYSE	ERF	Fri, Feb 12, 2021	4.59	4.78	4.58	4.72
5083	NYSE	ERF	Thu, Feb 11, 2021	4.58	4.75	4.57	4.68
5082	NYSE	ERF	Wed, Feb 10, 2021	4.17	4.63	4.17	4.62
5081	NYSE	ERF	Tue, Feb 9, 2021	3.95	4.19	3.85	4.15
5080	NYSE	ERF	Mon, Feb 8, 2021	3.88	4.03	3.79	4.01
5079	NYSE	ERF	Fri, Feb 5, 2021	3.78	3.89	3.73	3.74
5078	NYSE	ERF	Thu, Feb 4, 2021	3.69	3.78	3.65	3.65
5077	NYSE	ERF	Wed, Feb 3, 2021	3.42	3.71	3.40	3.62
5076	NYSE	ERF	Tue, Feb 2, 2021	3.38	3.53	3.32	3.35
5075	NYSE	ERF	Mon, Feb 1, 2021	3.18	3.33	3.10	3.27
5074	NYSE	ERF	Fri, Jan 29, 2021	3.23	3.30	3.07	3.11
5073	NYSE	ERF	Thu, Jan 28, 2021	3.31	3.33	3.15	3.23
5072	NYSE	ERF	Wed, Jan 27, 2021	3.25	3.41	3.18	3.26
5071	NYSE	ERF	Tue, Jan 26, 2021	3.30	3.52	3.24	3.26
5070	NYSE	ERF	Mon, Jan 25, 2021	3.36	3.37	3.23	3.37
5069	NYSE	ERF	Fri, Jan 22, 2021	3.38	3.41	3.31	3.35
5068	NYSE	ERF	Thu, Jan 21, 2021	3.69	3.70	3.45	3.47
5067	NYSE	ERF	Wed, Jan 20, 2021	3.70	3.83	3.63	3.63
5066	NYSE	ERF	Tue, Jan 19, 2021	3.63	3.76	3.61	3.65
5065	NYSE	ERF	Fri, Jan 15, 2021	3.71	3.75	3.62	3.65
5064	NYSE	ERF	Thu, Jan 14, 2021	3.68	3.88	3.67	3.82
5063	NYSE	ERF	Wed, Jan 13, 2021	3.79	3.79	3.59	3.68
5062	NYSE	ERF	Tue, Jan 12, 2021	3.61	3.78	3.60	3.76
5061	NYSE	ERF	Mon, Jan 11, 2021	3.45	3.60	3.41	3.58
5060	NYSE	ERF	Fri, Jan 8, 2021	3.72	3.75	3.48	3.55
5059	NYSE	ERF	Thu, Jan 7, 2021	3.58	3.67	3.54	3.64
5058	NYSE	ERF	Wed, Jan 6, 2021	3.47	3.63	3.43	3.53
5057	NYSE	ERF	Tue, Jan 5, 2021	3.20	3.51	3.20	3.43
5056	NYSE	ERF	Mon, Jan 4, 2021	3.16	3.27	3.11	3.18
5055	NYSE	ERF	Thu, Dec 31, 2020	3.15	3.22	3.13	3.13
5054	NYSE	ERF	Wed, Dec 30, 2020	3.11	3.25	3.11	3.19
5053	NYSE	ERF	Tue, Dec 29, 2020	3.12	3.20	3.07	3.12
5052	NYSE	ERF	Mon, Dec 28, 2020	3.14	3.19	3.02	3.06
5051	NYSE	ERF	Thu, Dec 24, 2020	3.12	3.16	3.07	3.14
5050	NYSE	ERF	Wed, Dec 23, 2020	2.93	3.15	2.93	3.14
5049	NYSE	ERF	Tue, Dec 22, 2020	3.10	3.10	2.90	2.90
5048	NYSE	ERF	Mon, Dec 21, 2020	3.14	3.23	3.07	3.08
5047	NYSE	ERF	Fri, Dec 18, 2020	3.33	3.46	3.28	3.36
5046	NYSE	ERF	Thu, Dec 17, 2020	3.36	3.39	3.22	3.34
5045	NYSE	ERF	Wed, Dec 16, 2020	3.44	3.44	3.31	3.32
5044	NYSE	ERF	Tue, Dec 15, 2020	3.37	3.48	3.35	3.46
5043	NYSE	ERF	Mon, Dec 14, 2020	3.44	3.51	3.29	3.38
5042	NYSE	ERF	Fri, Dec 11, 2020	3.28	3.34	3.16	3.32
5041	NYSE	ERF	Thu, Dec 10, 2020	3.05	3.34	3.03	3.33
5040	NYSE	ERF	Wed, Dec 9, 2020	3.09	3.19	2.95	3.01
5039	NYSE	ERF	Tue, Dec 8, 2020	2.90	3.05	2.90	3.05
5038	NYSE	ERF	Mon, Dec 7, 2020	2.85	2.97	2.79	2.93
5037	NYSE	ERF	Fri, Dec 4, 2020	2.80	2.95	2.79	2.95
5036	NYSE	ERF	Thu, Dec 3, 2020	2.70	2.76	2.63	2.72
5035	NYSE	ERF	Wed, Dec 2, 2020	2.51	2.78	2.49	2.69
5034	NYSE	ERF	Tue, Dec 1, 2020	2.59	2.65	2.48	2.51
5033	NYSE	ERF	Mon, Nov 30, 2020	2.69	2.72	2.54	2.54
5032	NYSE	ERF	Fri, Nov 27, 2020	2.75	2.78	2.67	2.71
5031	NYSE	ERF	Wed, Nov 25, 2020	2.78	2.79	2.67	2.75
5030	NYSE	ERF	Tue, Nov 24, 2020	2.71	2.83	2.69	2.79
5029	NYSE	ERF	Mon, Nov 23, 2020	2.39	2.58	2.37	2.55
5028	NYSE	ERF	Fri, Nov 20, 2020	2.36	2.38	2.30	2.32
5027	NYSE	ERF	Thu, Nov 19, 2020	2.33	2.44	2.29	2.36
5026	NYSE	ERF	Wed, Nov 18, 2020	2.40	2.54	2.34	2.34
5025	NYSE	ERF	Tue, Nov 17, 2020	2.26	2.40	2.20	2.36
5024	NYSE	ERF	Mon, Nov 16, 2020	2.20	2.29	2.17	2.26
5023	NYSE	ERF	Fri, Nov 13, 2020	2.07	2.11	2.01	2.08
5022	NYSE	ERF	Thu, Nov 12, 2020	2.24	2.24	2.04	2.07
5021	NYSE	ERF	Wed, Nov 11, 2020	2.28	2.32	2.19	2.25
5020	NYSE	ERF	Tue, Nov 10, 2020	2.03	2.23	1.96	2.23
5019	NYSE	ERF	Mon, Nov 9, 2020	1.84	2.04	1.82	1.99
5018	NYSE	ERF	Fri, Nov 6, 2020	1.83	1.85	1.70	1.71
5017	NYSE	ERF	Thu, Nov 5, 2020	1.81	1.87	1.77	1.80
5016	NYSE	ERF	Wed, Nov 4, 2020	1.88	1.90	1.81	1.82
5015	NYSE	ERF	Tue, Nov 3, 2020	1.90	1.98	1.82	1.88
5014	NYSE	ERF	Mon, Nov 2, 2020	1.84	1.88	1.79	1.86
5013	NYSE	ERF	Fri, Oct 30, 2020	1.84	1.87	1.78	1.83
5012	NYSE	ERF	Thu, Oct 29, 2020	1.78	1.86	1.70	1.86
5011	NYSE	ERF	Wed, Oct 28, 2020	1.86	1.86	1.78	1.79
5010	NYSE	ERF	Tue, Oct 27, 2020	1.94	1.95	1.90	1.90
5009	NYSE	ERF	Mon, Oct 26, 2020	2.01	2.01	1.89	1.92
5008	NYSE	ERF	Fri, Oct 23, 2020	2.10	2.12	2.01	2.05
5007	NYSE	ERF	Thu, Oct 22, 2020	1.99	2.10	1.95	2.08
5006	NYSE	ERF	Wed, Oct 21, 2020	2.04	2.08	1.98	1.98
5005	NYSE	ERF	Tue, Oct 20, 2020	1.93	2.06	1.89	2.01
5004	NYSE	ERF	Mon, Oct 19, 2020	1.93	2.01	1.91	1.92
5003	NYSE	ERF	Fri, Oct 16, 2020	1.93	2.06	1.88	1.94
5002	NYSE	ERF	Thu, Oct 15, 2020	1.85	1.93	1.76	1.93
5001	NYSE	ERF	Wed, Oct 14, 2020	1.93	1.99	1.87	1.87
5000	NYSE	ERF	Tue, Oct 13, 2020	1.95	2.03	1.91	1.92
4999	NYSE	ERF	Mon, Oct 12, 2020	2.02	2.02	1.96	1.99
4998	NYSE	ERF	Fri, Oct 9, 2020	2.13	2.13	2.00	2.04
4997	NYSE	ERF	Thu, Oct 8, 2020	1.96	2.11	1.93	2.10
4996	NYSE	ERF	Wed, Oct 7, 2020	1.97	2.01	1.87	1.94
4995	NYSE	ERF	Tue, Oct 6, 2020	2.03	2.07	1.90	1.91
4994	NYSE	ERF	Mon, Oct 5, 2020	1.89	1.96	1.82	1.96
4993	NYSE	ERF	Fri, Oct 2, 2020	1.75	1.88	1.72	1.85
4992	NYSE	ERF	Thu, Oct 1, 2020	1.81	1.84	1.76	1.80
4991	NYSE	ERF	Wed, Sep 30, 2020	1.83	1.89	1.77	1.86
4990	NYSE	ERF	Tue, Sep 29, 2020	1.88	1.91	1.73	1.81
4989	NYSE	ERF	Mon, Sep 28, 2020	1.83	1.92	1.82	1.90
4988	NYSE	ERF	Fri, Sep 25, 2020	1.81	1.82	1.74	1.78
4987	NYSE	ERF	Thu, Sep 24, 2020	1.76	1.88	1.72	1.83
4986	NYSE	ERF	Wed, Sep 23, 2020	1.89	1.89	1.76	1.77
4985	NYSE	ERF	Tue, Sep 22, 2020	1.86	1.93	1.83	1.84
4984	NYSE	ERF	Mon, Sep 21, 2020	1.96	1.97	1.83	1.86
4983	NYSE	ERF	Fri, Sep 18, 2020	2.05	2.09	2.00	2.02
4982	NYSE	ERF	Thu, Sep 17, 2020	2.02	2.09	1.94	2.06
4981	NYSE	ERF	Wed, Sep 16, 2020	1.96	2.11	1.91	2.04
4980	NYSE	ERF	Tue, Sep 15, 2020	1.90	1.98	1.88	1.92
4979	NYSE	ERF	Mon, Sep 14, 2020	1.92	1.99	1.81	1.90
4978	NYSE	ERF	Fri, Sep 11, 2020	1.95	2.02	1.89	1.91
4977	NYSE	ERF	Thu, Sep 10, 2020	2.14	2.15	1.95	1.95
4976	NYSE	ERF	Wed, Sep 9, 2020	2.19	2.24	2.15	2.15
4975	NYSE	ERF	Tue, Sep 8, 2020	2.35	2.36	2.16	2.19
4974	NYSE	ERF	Fri, Sep 4, 2020	2.48	2.50	2.36	2.42
4973	NYSE	ERF	Thu, Sep 3, 2020	2.49	2.54	2.44	2.46
4972	NYSE	ERF	Wed, Sep 2, 2020	2.72	2.72	2.49	2.53
4971	NYSE	ERF	Tue, Sep 1, 2020	2.65	2.74	2.59	2.72
4970	NYSE	ERF	Mon, Aug 31, 2020	2.79	2.80	2.64	2.65
4969	NYSE	ERF	Fri, Aug 28, 2020	2.74	2.82	2.72	2.79
4968	NYSE	ERF	Thu, Aug 27, 2020	2.80	2.84	2.71	2.72
4967	NYSE	ERF	Wed, Aug 26, 2020	2.91	2.92	2.75	2.78
4966	NYSE	ERF	Tue, Aug 25, 2020	2.88	2.96	2.86	2.91
4965	NYSE	ERF	Mon, Aug 24, 2020	2.79	2.90	2.72	2.87
4964	NYSE	ERF	Fri, Aug 21, 2020	2.85	2.85	2.74	2.74
4963	NYSE	ERF	Thu, Aug 20, 2020	2.95	2.96	2.85	2.88
4962	NYSE	ERF	Wed, Aug 19, 2020	3.06	3.10	3.00	3.00
4961	NYSE	ERF	Tue, Aug 18, 2020	3.09	3.17	3.06	3.08
4960	NYSE	ERF	Mon, Aug 17, 2020	3.07	3.14	3.04	3.12
4959	NYSE	ERF	Fri, Aug 14, 2020	3.03	3.16	3.01	3.15
4958	NYSE	ERF	Thu, Aug 13, 2020	3.10	3.11	2.99	3.08
4957	NYSE	ERF	Wed, Aug 12, 2020	3.00	3.15	3.00	3.08
4956	NYSE	ERF	Tue, Aug 11, 2020	3.14	3.19	2.94	2.96
4955	NYSE	ERF	Mon, Aug 10, 2020	3.00	3.15	2.96	3.05
4954	NYSE	ERF	Fri, Aug 7, 2020	2.80	3.03	2.76	2.98
4953	NYSE	ERF	Thu, Aug 6, 2020	2.90	2.94	2.82	2.93
4952	NYSE	ERF	Wed, Aug 5, 2020	2.76	2.93	2.76	2.92
4951	NYSE	ERF	Tue, Aug 4, 2020	2.49	2.71	2.49	2.70
4950	NYSE	ERF	Mon, Aug 3, 2020	2.49	2.55	2.42	2.51
4949	NYSE	ERF	Fri, Jul 31, 2020	2.47	2.48	2.43	2.48
4948	NYSE	ERF	Thu, Jul 30, 2020	2.50	2.53	2.42	2.46
4947	NYSE	ERF	Wed, Jul 29, 2020	2.50	2.58	2.50	2.58
4946	NYSE	ERF	Tue, Jul 28, 2020	2.50	2.65	2.50	2.52
4945	NYSE	ERF	Mon, Jul 27, 2020	2.70	2.72	2.60	2.65
4944	NYSE	ERF	Fri, Jul 24, 2020	2.66	2.72	2.62	2.72
4943	NYSE	ERF	Thu, Jul 23, 2020	2.70	2.72	2.62	2.65
4942	NYSE	ERF	Wed, Jul 22, 2020	2.68	2.74	2.59	2.72
4941	NYSE	ERF	Tue, Jul 21, 2020	2.52	2.74	2.51	2.72
4940	NYSE	ERF	Mon, Jul 20, 2020	2.53	2.57	2.42	2.47
4939	NYSE	ERF	Fri, Jul 17, 2020	2.57	2.61	2.51	2.53
4938	NYSE	ERF	Thu, Jul 16, 2020	2.64	2.66	2.54	2.58
4937	NYSE	ERF	Wed, Jul 15, 2020	2.60	2.66	2.55	2.64
4936	NYSE	ERF	Tue, Jul 14, 2020	2.39	2.55	2.35	2.54
4935	NYSE	ERF	Mon, Jul 13, 2020	2.47	2.52	2.38	2.42
4934	NYSE	ERF	Fri, Jul 10, 2020	2.22	2.46	2.22	2.44
4933	NYSE	ERF	Thu, Jul 9, 2020	2.30	2.37	2.23	2.23
4932	NYSE	ERF	Wed, Jul 8, 2020	2.36	2.39	2.25	2.29
4931	NYSE	ERF	Tue, Jul 7, 2020	2.48	2.51	2.34	2.35
4930	NYSE	ERF	Mon, Jul 6, 2020	2.93	2.95	2.53	2.54
4929	NYSE	ERF	Thu, Jul 2, 2020	2.85	2.96	2.75	2.91
4928	NYSE	ERF	Wed, Jul 1, 2020	2.84	2.90	2.69	2.72
4927	NYSE	ERF	Tue, Jun 30, 2020	2.70	2.84	2.60	2.83
4926	NYSE	ERF	Mon, Jun 29, 2020	2.50	2.74	2.50	2.70
4925	NYSE	ERF	Fri, Jun 26, 2020	2.67	2.69	2.53	2.52
4924	NYSE	ERF	Thu, Jun 25, 2020	2.73	2.85	2.67	2.71
4923	NYSE	ERF	Wed, Jun 24, 2020	2.98	2.98	2.75	2.76
4922	NYSE	ERF	Tue, Jun 23, 2020	2.95	3.03	2.93	3.00
4921	NYSE	ERF	Mon, Jun 22, 2020	2.91	2.93	2.81	2.90
4920	NYSE	ERF	Fri, Jun 19, 2020	3.02	3.02	2.84	2.89
4919	NYSE	ERF	Thu, Jun 18, 2020	2.82	3.02	2.81	2.92
4918	NYSE	ERF	Wed, Jun 17, 2020	3.01	3.01	2.84	2.85
4917	NYSE	ERF	Tue, Jun 16, 2020	3.13	3.19	2.98	3.03
4916	NYSE	ERF	Mon, Jun 15, 2020	2.78	3.00	2.71	2.94
4915	NYSE	ERF	Fri, Jun 12, 2020	3.06	3.08	2.85	2.94
4914	NYSE	ERF	Thu, Jun 11, 2020	3.00	3.22	2.86	2.87
4913	NYSE	ERF	Wed, Jun 10, 2020	3.45	3.48	3.17	3.34
4912	NYSE	ERF	Tue, Jun 9, 2020	3.49	3.58	3.39	3.47
4911	NYSE	ERF	Mon, Jun 8, 2020	3.70	3.73	3.52	3.59
4910	NYSE	ERF	Fri, Jun 5, 2020	3.18	3.49	3.15	3.49
4909	NYSE	ERF	Thu, Jun 4, 2020	2.96	3.03	2.86	3.01
4908	NYSE	ERF	Wed, Jun 3, 2020	3.00	3.04	2.90	2.97
4907	NYSE	ERF	Tue, Jun 2, 2020	2.79	2.97	2.79	2.94
4906	NYSE	ERF	Mon, Jun 1, 2020	2.72	2.79	2.67	2.76
4905	NYSE	ERF	Fri, May 29, 2020	2.80	2.80	2.65	2.69
4904	NYSE	ERF	Thu, May 28, 2020	2.92	2.92	2.76	2.79
4903	NYSE	ERF	Wed, May 27, 2020	2.88	2.92	2.78	2.89
4902	NYSE	ERF	Tue, May 26, 2020	2.85	2.91	2.78	2.85
4901	NYSE	ERF	Fri, May 22, 2020	2.80	2.80	2.66	2.75
4900	NYSE	ERF	Thu, May 21, 2020	2.89	2.98	2.74	2.82
4899	NYSE	ERF	Wed, May 20, 2020	2.80	2.92	2.79	2.89
4898	NYSE	ERF	Tue, May 19, 2020	2.79	2.84	2.65	2.71
4897	NYSE	ERF	Mon, May 18, 2020	2.59	2.87	2.59	2.86
4896	NYSE	ERF	Fri, May 15, 2020	2.42	2.51	2.39	2.42
4895	NYSE	ERF	Thu, May 14, 2020	2.24	2.45	2.14	2.41
4894	NYSE	ERF	Wed, May 13, 2020	2.45	2.49	2.27	2.29
4893	NYSE	ERF	Tue, May 12, 2020	2.49	2.55	2.40	2.47
4892	NYSE	ERF	Mon, May 11, 2020	2.57	2.59	2.46	2.47
4891	NYSE	ERF	Fri, May 8, 2020	2.60	2.61	2.44	2.58
4890	NYSE	ERF	Thu, May 7, 2020	2.52	2.58	2.45	2.52
4889	NYSE	ERF	Wed, May 6, 2020	2.55	2.56	2.38	2.41
4888	NYSE	ERF	Tue, May 5, 2020	2.68	2.75	2.50	2.51
4887	NYSE	ERF	Mon, May 4, 2020	2.51	2.54	2.36	2.54
4886	NYSE	ERF	Fri, May 1, 2020	2.60	2.62	2.39	2.48
4885	NYSE	ERF	Thu, Apr 30, 2020	2.73	2.75	2.43	2.70
4884	NYSE	ERF	Wed, Apr 29, 2020	2.29	2.60	2.29	2.58
4883	NYSE	ERF	Tue, Apr 28, 2020	2.17	2.27	2.13	2.22
4882	NYSE	ERF	Mon, Apr 27, 2020	2.10	2.16	1.95	2.13
4881	NYSE	ERF	Fri, Apr 24, 2020	2.28	2.33	2.10	2.15
4880	NYSE	ERF	Thu, Apr 23, 2020	2.07	2.34	2.04	2.21
4879	NYSE	ERF	Wed, Apr 22, 2020	1.93	2.03	1.91	2.00
4878	NYSE	ERF	Tue, Apr 21, 2020	1.77	1.89	1.70	1.86
4877	NYSE	ERF	Mon, Apr 20, 2020	1.72	1.95	1.67	1.82
4876	NYSE	ERF	Fri, Apr 17, 2020	1.70	1.86	1.66	1.84
4875	NYSE	ERF	Thu, Apr 16, 2020	1.90	1.91	1.67	1.68
4874	NYSE	ERF	Wed, Apr 15, 2020	1.86	1.94	1.76	1.89
4873	NYSE	ERF	Tue, Apr 14, 2020	2.18	2.18	1.95	2.00
4872	NYSE	ERF	Mon, Apr 13, 2020	2.25	2.25	2.07	2.17
4871	NYSE	ERF	Thu, Apr 9, 2020	2.19	2.35	2.02	2.13
4870	NYSE	ERF	Wed, Apr 8, 2020	2.05	2.09	1.91	2.04
4869	NYSE	ERF	Tue, Apr 7, 2020	1.99	2.10	1.90	1.97
4868	NYSE	ERF	Mon, Apr 6, 2020	1.83	1.94	1.76	1.87
4867	NYSE	ERF	Fri, Apr 3, 2020	1.89	1.96	1.64	1.82
4866	NYSE	ERF	Thu, Apr 2, 2020	1.58	1.89	1.52	1.72
4865	NYSE	ERF	Wed, Apr 1, 2020	1.43	1.54	1.38	1.49
4864	NYSE	ERF	Tue, Mar 31, 2020	1.32	1.55	1.32	1.48
4863	NYSE	ERF	Mon, Mar 30, 2020	1.30	1.32	1.15	1.32
4862	NYSE	ERF	Fri, Mar 27, 2020	1.47	1.47	1.31	1.31
4861	NYSE	ERF	Thu, Mar 26, 2020	1.52	1.69	1.45	1.47
4860	NYSE	ERF	Wed, Mar 25, 2020	1.43	1.68	1.35	1.51
4859	NYSE	ERF	Tue, Mar 24, 2020	1.42	1.45	1.35	1.41
4858	NYSE	ERF	Mon, Mar 23, 2020	1.45	1.48	1.30	1.30
4857	NYSE	ERF	Fri, Mar 20, 2020	1.54	1.60	1.39	1.42
4856	NYSE	ERF	Thu, Mar 19, 2020	1.44	1.54	1.35	1.48
4855	NYSE	ERF	Wed, Mar 18, 2020	1.49	1.55	1.27	1.42
4854	NYSE	ERF	Tue, Mar 17, 2020	1.76	1.77	1.55	1.57
4853	NYSE	ERF	Mon, Mar 16, 2020	1.73	1.99	1.65	1.73
4852	NYSE	ERF	Fri, Mar 13, 2020	1.78	2.00	1.56	2.00
4851	NYSE	ERF	Thu, Mar 12, 2020	1.72	1.83	1.63	1.65
4850	NYSE	ERF	Wed, Mar 11, 2020	2.02	2.15	1.83	1.95
4849	NYSE	ERF	Tue, Mar 10, 2020	2.45	2.48	1.99	2.10
4848	NYSE	ERF	Mon, Mar 9, 2020	2.59	2.72	2.14	2.14
4847	NYSE	ERF	Fri, Mar 6, 2020	3.89	4.02	3.48	3.48
4846	NYSE	ERF	Thu, Mar 5, 2020	4.12	4.19	3.98	4.03
4845	NYSE	ERF	Wed, Mar 4, 2020	4.35	4.42	4.20	4.23
4844	NYSE	ERF	Tue, Mar 3, 2020	4.38	4.45	4.11	4.23
4843	NYSE	ERF	Mon, Mar 2, 2020	4.38	4.40	4.15	4.32
4842	NYSE	ERF	Fri, Feb 28, 2020	4.07	4.37	4.07	4.34
4841	NYSE	ERF	Thu, Feb 27, 2020	4.18	4.39	4.02	4.23
4840	NYSE	ERF	Wed, Feb 26, 2020	4.51	4.62	4.36	4.35
4839	NYSE	ERF	Tue, Feb 25, 2020	4.75	4.75	4.47	4.50
4838	NYSE	ERF	Mon, Feb 24, 2020	4.78	4.79	4.61	4.72
4837	NYSE	ERF	Fri, Feb 21, 2020	5.06	5.16	4.91	5.04
4836	NYSE	ERF	Thu, Feb 20, 2020	5.39	5.44	5.25	5.26
4835	NYSE	ERF	Wed, Feb 19, 2020	5.31	5.44	5.29	5.37
4834	NYSE	ERF	Tue, Feb 18, 2020	5.18	5.31	5.17	5.25
4833	NYSE	ERF	Fri, Feb 14, 2020	5.40	5.46	5.22	5.26
4832	NYSE	ERF	Thu, Feb 13, 2020	5.20	5.36	5.16	5.34
4831	NYSE	ERF	Wed, Feb 12, 2020	5.20	5.34	5.10	5.22
4830	NYSE	ERF	Tue, Feb 11, 2020	5.21	5.28	5.05	5.07
4829	NYSE	ERF	Mon, Feb 10, 2020	5.05	5.13	4.98	5.11
4828	NYSE	ERF	Fri, Feb 7, 2020	5.16	5.20	5.02	5.11
4827	NYSE	ERF	Thu, Feb 6, 2020	5.24	5.38	5.11	5.19
4826	NYSE	ERF	Wed, Feb 5, 2020	4.97	5.25	4.97	5.24
4825	NYSE	ERF	Tue, Feb 4, 2020	5.15	5.18	4.88	4.89
4824	NYSE	ERF	Mon, Feb 3, 2020	5.10	5.10	4.93	5.02
4823	NYSE	ERF	Fri, Jan 31, 2020	5.07	5.13	4.91	5.10
4822	NYSE	ERF	Thu, Jan 30, 2020	5.06	5.19	4.98	5.16
4821	NYSE	ERF	Wed, Jan 29, 2020	5.26	5.36	5.14	5.16
4820	NYSE	ERF	Tue, Jan 28, 2020	5.26	5.34	5.12	5.24
4819	NYSE	ERF	Mon, Jan 27, 2020	5.28	5.33	5.15	5.20
4818	NYSE	ERF	Fri, Jan 24, 2020	5.51	5.54	5.37	5.45
4817	NYSE	ERF	Thu, Jan 23, 2020	5.65	5.65	5.42	5.55
4816	NYSE	ERF	Wed, Jan 22, 2020	6.09	6.10	5.73	5.73
4815	NYSE	ERF	Tue, Jan 21, 2020	6.42	6.42	6.03	6.08
4814	NYSE	ERF	Fri, Jan 17, 2020	6.57	6.57	6.35	6.46
4813	NYSE	ERF	Thu, Jan 16, 2020	6.58	6.77	6.49	6.49
4812	NYSE	ERF	Wed, Jan 15, 2020	6.66	6.72	6.56	6.56
4811	NYSE	ERF	Tue, Jan 14, 2020	6.72	6.84	6.60	6.73
4810	NYSE	ERF	Mon, Jan 13, 2020	6.69	6.84	6.55	6.72
4809	NYSE	ERF	Fri, Jan 10, 2020	6.80	6.86	6.69	6.76
4808	NYSE	ERF	Thu, Jan 9, 2020	6.85	6.87	6.55	6.84
4807	NYSE	ERF	Wed, Jan 8, 2020	7.21	7.26	6.82	6.93
4806	NYSE	ERF	Tue, Jan 7, 2020	7.26	7.28	7.11	7.23
4805	NYSE	ERF	Mon, Jan 6, 2020	7.25	7.33	7.16	7.30
4804	NYSE	ERF	Fri, Jan 3, 2020	7.19	7.35	7.09	7.13
4803	NYSE	ERF	Thu, Jan 2, 2020	7.17	7.23	6.94	7.02
4802	NYSE	ERF	Tue, Dec 31, 2019	7.00	7.23	6.96	7.13
4801	NYSE	ERF	Mon, Dec 30, 2019	7.10	7.18	7.03	7.05
4800	NYSE	ERF	Fri, Dec 27, 2019	7.13	7.20	7.02	7.02
4799	NYSE	ERF	Thu, Dec 26, 2019	7.04	7.16	7.01	7.11
4798	NYSE	ERF	Tue, Dec 24, 2019	7.07	7.16	6.99	7.00
4797	NYSE	ERF	Mon, Dec 23, 2019	6.84	7.09	6.84	7.05
4796	NYSE	ERF	Fri, Dec 20, 2019	7.01	7.04	6.82	6.85
4795	NYSE	ERF	Thu, Dec 19, 2019	6.92	7.07	6.90	7.01
4794	NYSE	ERF	Wed, Dec 18, 2019	6.84	7.04	6.78	6.94
4793	NYSE	ERF	Tue, Dec 17, 2019	6.72	7.02	6.72	6.91
4792	NYSE	ERF	Mon, Dec 16, 2019	6.66	6.83	6.65	6.69
4791	NYSE	ERF	Fri, Dec 13, 2019	6.67	6.81	6.53	6.55
4790	NYSE	ERF	Thu, Dec 12, 2019	6.50	6.80	6.50	6.71
4789	NYSE	ERF	Wed, Dec 11, 2019	6.71	6.72	6.47	6.50
4788	NYSE	ERF	Tue, Dec 10, 2019	6.60	6.77	6.57	6.71
4787	NYSE	ERF	Mon, Dec 9, 2019	6.42	6.65	6.42	6.60
4786	NYSE	ERF	Fri, Dec 6, 2019	6.33	6.58	6.31	6.49
4785	NYSE	ERF	Thu, Dec 5, 2019	6.39	6.49	6.32	6.33
4784	NYSE	ERF	Wed, Dec 4, 2019	6.05	6.36	6.01	6.35
4783	NYSE	ERF	Tue, Dec 3, 2019	6.11	6.13	5.88	5.95
4782	NYSE	ERF	Mon, Dec 2, 2019	6.27	6.35	6.14	6.15
4781	NYSE	ERF	Fri, Nov 29, 2019	6.23	6.28	6.17	6.19
4780	NYSE	ERF	Wed, Nov 27, 2019	6.25	6.36	6.17	6.35
4779	NYSE	ERF	Tue, Nov 26, 2019	6.46	6.46	6.24	6.24
4778	NYSE	ERF	Mon, Nov 25, 2019	6.31	6.51	6.25	6.48
4777	NYSE	ERF	Fri, Nov 22, 2019	6.36	6.45	6.25	6.36
4776	NYSE	ERF	Thu, Nov 21, 2019	6.27	6.40	6.20	6.34
4775	NYSE	ERF	Wed, Nov 20, 2019	5.98	6.29	5.87	6.20
4774	NYSE	ERF	Tue, Nov 19, 2019	6.12	6.16	5.94	5.97
4773	NYSE	ERF	Mon, Nov 18, 2019	6.33	6.35	6.09	6.11
4772	NYSE	ERF	Fri, Nov 15, 2019	6.39	6.57	6.37	6.39
4771	NYSE	ERF	Thu, Nov 14, 2019	6.51	6.54	6.28	6.35
4770	NYSE	ERF	Wed, Nov 13, 2019	6.33	6.56	6.26	6.51
4769	NYSE	ERF	Tue, Nov 12, 2019	6.40	6.48	6.34	6.39
4768	NYSE	ERF	Mon, Nov 11, 2019	6.42	6.50	6.29	6.40
4767	NYSE	ERF	Fri, Nov 8, 2019	6.53	6.58	6.24	6.50
4766	NYSE	ERF	Thu, Nov 7, 2019	6.57	6.80	6.55	6.67
4765	NYSE	ERF	Wed, Nov 6, 2019	6.71	6.82	6.45	6.46
4764	NYSE	ERF	Tue, Nov 5, 2019	6.55	6.77	6.55	6.74
4763	NYSE	ERF	Mon, Nov 4, 2019	6.36	6.62	6.36	6.51
4762	NYSE	ERF	Fri, Nov 1, 2019	6.09	6.29	6.04	6.29
4761	NYSE	ERF	Thu, Oct 31, 2019	6.04	6.06	5.80	6.03
4760	NYSE	ERF	Wed, Oct 30, 2019	6.37	6.39	6.01	6.04
4759	NYSE	ERF	Tue, Oct 29, 2019	6.10	6.42	6.05	6.36
4758	NYSE	ERF	Mon, Oct 28, 2019	6.45	6.47	6.12	6.16
4757	NYSE	ERF	Fri, Oct 25, 2019	6.21	6.37	6.18	6.35
4756	NYSE	ERF	Thu, Oct 24, 2019	6.50	6.55	6.19	6.23
4755	NYSE	ERF	Wed, Oct 23, 2019	6.25	6.43	6.16	6.41
4754	NYSE	ERF	Tue, Oct 22, 2019	6.18	6.39	6.15	6.30
4753	NYSE	ERF	Mon, Oct 21, 2019	6.08	6.22	6.08	6.16
4752	NYSE	ERF	Fri, Oct 18, 2019	6.34	6.39	6.14	6.14
4751	NYSE	ERF	Thu, Oct 17, 2019	6.48	6.48	6.27	6.31
4750	NYSE	ERF	Wed, Oct 16, 2019	6.66	6.76	6.47	6.48
4749	NYSE	ERF	Tue, Oct 15, 2019	6.61	6.78	6.52	6.69
4748	NYSE	ERF	Mon, Oct 14, 2019	6.53	6.71	6.46	6.56
4747	NYSE	ERF	Fri, Oct 11, 2019	6.67	6.76	6.60	6.65
4746	NYSE	ERF	Thu, Oct 10, 2019	6.49	6.57	6.44	6.55
4745	NYSE	ERF	Wed, Oct 9, 2019	6.62	6.64	6.41	6.46
4744	NYSE	ERF	Tue, Oct 8, 2019	6.65	6.72	6.50	6.51
4743	NYSE	ERF	Mon, Oct 7, 2019	6.87	6.96	6.76	6.76
4742	NYSE	ERF	Fri, Oct 4, 2019	6.95	7.04	6.77	6.88
4741	NYSE	ERF	Thu, Oct 3, 2019	6.82	7.02	6.74	6.92
4740	NYSE	ERF	Wed, Oct 2, 2019	7.05	7.15	6.90	6.93
4739	NYSE	ERF	Tue, Oct 1, 2019	7.49	7.49	7.11	7.11
4738	NYSE	ERF	Mon, Sep 30, 2019	7.56	7.61	7.39	7.44
4737	NYSE	ERF	Fri, Sep 27, 2019	7.45	7.76	7.36	7.65
4736	NYSE	ERF	Thu, Sep 26, 2019	7.76	7.78	7.52	7.52
4735	NYSE	ERF	Wed, Sep 25, 2019	7.63	7.88	7.53	7.84
4734	NYSE	ERF	Tue, Sep 24, 2019	7.97	8.03	7.73	7.76
4733	NYSE	ERF	Mon, Sep 23, 2019	8.03	8.17	8.02	8.06
4732	NYSE	ERF	Fri, Sep 20, 2019	8.06	8.15	8.02	8.13
4731	NYSE	ERF	Thu, Sep 19, 2019	8.01	8.14	7.98	8.02
4730	NYSE	ERF	Wed, Sep 18, 2019	7.87	7.99	7.75	7.94
4729	NYSE	ERF	Tue, Sep 17, 2019	8.25	8.28	7.90	7.99
4728	NYSE	ERF	Mon, Sep 16, 2019	8.02	8.43	7.78	8.28
4727	NYSE	ERF	Fri, Sep 13, 2019	7.39	7.48	7.20	7.33
4726	NYSE	ERF	Thu, Sep 12, 2019	7.09	7.37	6.92	7.31
4725	NYSE	ERF	Wed, Sep 11, 2019	7.24	7.43	7.07	7.24
4724	NYSE	ERF	Tue, Sep 10, 2019	7.12	7.45	7.11	7.20
4723	NYSE	ERF	Mon, Sep 9, 2019	7.04	7.37	7.04	7.12
4722	NYSE	ERF	Fri, Sep 6, 2019	6.81	7.05	6.78	6.96
4721	NYSE	ERF	Thu, Sep 5, 2019	6.81	7.02	6.81	6.89
4720	NYSE	ERF	Wed, Sep 4, 2019	6.57	6.91	6.56	6.78
4719	NYSE	ERF	Tue, Sep 3, 2019	6.40	6.50	6.27	6.46
4718	NYSE	ERF	Fri, Aug 30, 2019	6.73	6.81	6.49	6.53
4717	NYSE	ERF	Thu, Aug 29, 2019	6.52	6.77	6.48	6.71
4716	NYSE	ERF	Wed, Aug 28, 2019	6.14	6.57	6.12	6.46
4715	NYSE	ERF	Tue, Aug 27, 2019	6.09	6.14	5.98	6.05
4714	NYSE	ERF	Mon, Aug 26, 2019	6.32	6.37	6.06	6.08
4713	NYSE	ERF	Fri, Aug 23, 2019	6.26	6.36	6.16	6.18
4712	NYSE	ERF	Thu, Aug 22, 2019	6.49	6.66	6.38	6.39
4711	NYSE	ERF	Wed, Aug 21, 2019	6.59	6.68	6.42	6.50
4710	NYSE	ERF	Tue, Aug 20, 2019	6.58	6.61	6.40	6.49
4709	NYSE	ERF	Mon, Aug 19, 2019	6.60	6.70	6.51	6.59
4708	NYSE	ERF	Fri, Aug 16, 2019	6.20	6.53	6.17	6.50
4707	NYSE	ERF	Thu, Aug 15, 2019	6.12	6.30	6.07	6.17
4706	NYSE	ERF	Wed, Aug 14, 2019	6.38	6.49	6.18	6.19
4705	NYSE	ERF	Tue, Aug 13, 2019	6.36	6.62	6.31	6.56
4704	NYSE	ERF	Mon, Aug 12, 2019	6.36	6.44	6.26	6.38
4703	NYSE	ERF	Fri, Aug 9, 2019	6.27	6.54	6.16	6.43
4702	NYSE	ERF	Thu, Aug 8, 2019	5.76	5.96	5.70	5.91
4701	NYSE	ERF	Wed, Aug 7, 2019	5.65	5.80	5.50	5.69
4700	NYSE	ERF	Tue, Aug 6, 2019	6.00	6.10	5.77	5.80
4699	NYSE	ERF	Mon, Aug 5, 2019	6.07	6.08	5.88	5.93
4698	NYSE	ERF	Fri, Aug 2, 2019	6.19	6.23	6.06	6.16
4697	NYSE	ERF	Thu, Aug 1, 2019	6.42	6.49	6.11	6.12
4696	NYSE	ERF	Wed, Jul 31, 2019	6.56	6.80	6.56	6.62
4695	NYSE	ERF	Tue, Jul 30, 2019	6.25	6.68	6.16	6.55
4694	NYSE	ERF	Mon, Jul 29, 2019	6.20	6.37	6.14	6.28
4693	NYSE	ERF	Fri, Jul 26, 2019	6.22	6.33	6.19	6.20
4692	NYSE	ERF	Thu, Jul 25, 2019	6.66	6.66	6.23	6.23
4691	NYSE	ERF	Wed, Jul 24, 2019	6.54	6.77	6.53	6.60
4690	NYSE	ERF	Tue, Jul 23, 2019	6.49	6.61	6.46	6.57
4689	NYSE	ERF	Mon, Jul 22, 2019	6.65	6.70	6.47	6.53
4688	NYSE	ERF	Fri, Jul 19, 2019	6.55	6.63	6.38	6.62
4687	NYSE	ERF	Thu, Jul 18, 2019	6.72	6.77	6.49	6.54
4686	NYSE	ERF	Wed, Jul 17, 2019	7.04	7.04	6.75	6.78
4685	NYSE	ERF	Tue, Jul 16, 2019	7.23	7.39	6.97	7.02
4684	NYSE	ERF	Mon, Jul 15, 2019	7.50	7.52	7.24	7.25
4683	NYSE	ERF	Fri, Jul 12, 2019	7.55	7.56	7.36	7.47
4682	NYSE	ERF	Thu, Jul 11, 2019	7.78	7.78	7.51	7.55
4681	NYSE	ERF	Wed, Jul 10, 2019	7.44	7.79	7.44	7.73
4680	NYSE	ERF	Tue, Jul 9, 2019	7.43	7.43	7.27	7.38
4679	NYSE	ERF	Mon, Jul 8, 2019	7.40	7.57	7.39	7.50
4678	NYSE	ERF	Fri, Jul 5, 2019	7.30	7.54	7.30	7.50
4677	NYSE	ERF	Wed, Jul 3, 2019	7.35	7.41	7.21	7.26
4676	NYSE	ERF	Tue, Jul 2, 2019	7.42	7.44	7.21	7.27
4675	NYSE	ERF	Mon, Jul 1, 2019	7.69	7.75	7.41	7.44
4674	NYSE	ERF	Fri, Jun 28, 2019	7.69	7.70	7.49	7.53
4673	NYSE	ERF	Thu, Jun 27, 2019	7.93	7.93	7.62	7.64
4672	NYSE	ERF	Wed, Jun 26, 2019	7.57	7.97	7.56	7.88
4671	NYSE	ERF	Tue, Jun 25, 2019	7.56	7.59	7.46	7.49
4670	NYSE	ERF	Mon, Jun 24, 2019	7.50	7.55	7.42	7.54
4669	NYSE	ERF	Fri, Jun 21, 2019	7.51	7.54	7.38	7.45
4668	NYSE	ERF	Thu, Jun 20, 2019	7.48	7.60	7.41	7.50
4667	NYSE	ERF	Wed, Jun 19, 2019	7.16	7.32	7.07	7.27
4666	NYSE	ERF	Tue, Jun 18, 2019	7.07	7.29	7.03	7.18
4665	NYSE	ERF	Mon, Jun 17, 2019	6.54	7.02	6.54	7.01
4664	NYSE	ERF	Fri, Jun 14, 2019	6.79	6.88	6.53	6.55
4663	NYSE	ERF	Thu, Jun 13, 2019	6.79	6.86	6.74	6.81
4662	NYSE	ERF	Wed, Jun 12, 2019	6.76	6.78	6.66	6.66
4661	NYSE	ERF	Tue, Jun 11, 2019	6.92	7.02	6.81	6.85
4660	NYSE	ERF	Mon, Jun 10, 2019	7.13	7.18	6.83	6.85
4659	NYSE	ERF	Fri, Jun 7, 2019	7.11	7.28	7.06	7.13
4658	NYSE	ERF	Thu, Jun 6, 2019	7.01	7.10	6.93	7.08
4657	NYSE	ERF	Wed, Jun 5, 2019	7.35	7.38	7.01	7.04
4656	NYSE	ERF	Tue, Jun 4, 2019	7.28	7.39	7.22	7.34
4655	NYSE	ERF	Mon, Jun 3, 2019	7.38	7.43	7.16	7.22
4654	NYSE	ERF	Fri, May 31, 2019	7.36	7.45	7.26	7.28
4653	NYSE	ERF	Thu, May 30, 2019	7.68	7.75	7.53	7.54
4652	NYSE	ERF	Wed, May 29, 2019	7.50	7.73	7.41	7.69
4651	NYSE	ERF	Tue, May 28, 2019	7.78	7.85	7.64	7.64
4650	NYSE	ERF	Fri, May 24, 2019	7.88	7.93	7.65	7.73
4649	NYSE	ERF	Thu, May 23, 2019	7.91	7.97	7.65	7.80
4648	NYSE	ERF	Wed, May 22, 2019	8.44	8.48	8.09	8.09
4647	NYSE	ERF	Tue, May 21, 2019	8.38	8.58	8.29	8.56
4646	NYSE	ERF	Mon, May 20, 2019	8.47	8.49	8.38	8.39
4645	NYSE	ERF	Fri, May 17, 2019	8.62	8.70	8.44	8.44
4644	NYSE	ERF	Thu, May 16, 2019	8.86	8.98	8.71	8.73
4643	NYSE	ERF	Wed, May 15, 2019	8.64	8.86	8.55	8.80
4642	NYSE	ERF	Tue, May 14, 2019	8.58	8.84	8.58	8.74
4641	NYSE	ERF	Mon, May 13, 2019	8.97	8.98	8.40	8.52
4640	NYSE	ERF	Fri, May 10, 2019	8.83	9.23	8.72	8.85
4639	NYSE	ERF	Thu, May 9, 2019	8.37	8.63	8.27	8.55
4638	NYSE	ERF	Wed, May 8, 2019	8.28	8.55	8.28	8.49
4637	NYSE	ERF	Tue, May 7, 2019	8.64	8.64	8.25	8.30
4636	NYSE	ERF	Mon, May 6, 2019	8.52	8.75	8.48	8.68
4635	NYSE	ERF	Fri, May 3, 2019	8.65	8.70	8.52	8.68
4634	NYSE	ERF	Thu, May 2, 2019	8.56	8.67	8.47	8.53
4633	NYSE	ERF	Wed, May 1, 2019	9.15	9.15	8.65	8.66
4632	NYSE	ERF	Tue, Apr 30, 2019	9.23	9.28	9.00	9.15
4631	NYSE	ERF	Mon, Apr 29, 2019	9.09	9.20	9.07	9.17
4630	NYSE	ERF	Fri, Apr 26, 2019	9.33	9.33	9.06	9.15
4629	NYSE	ERF	Thu, Apr 25, 2019	9.47	9.52	9.28	9.35
4628	NYSE	ERF	Wed, Apr 24, 2019	9.72	9.73	9.45	9.47
4627	NYSE	ERF	Tue, Apr 23, 2019	9.60	9.74	9.44	9.71
4626	NYSE	ERF	Mon, Apr 22, 2019	9.15	9.62	9.11	9.62
4625	NYSE	ERF	Thu, Apr 18, 2019	8.93	9.03	8.84	8.96
4624	NYSE	ERF	Wed, Apr 17, 2019	9.03	9.06	8.80	8.89
4623	NYSE	ERF	Tue, Apr 16, 2019	9.09	9.10	8.93	8.95
4622	NYSE	ERF	Mon, Apr 15, 2019	9.15	9.23	9.06	9.09
4621	NYSE	ERF	Fri, Apr 12, 2019	9.22	9.35	9.09	9.17
4620	NYSE	ERF	Thu, Apr 11, 2019	8.99	9.21	8.92	8.99
4619	NYSE	ERF	Wed, Apr 10, 2019	9.06	9.22	8.97	9.10
4618	NYSE	ERF	Tue, Apr 9, 2019	9.05	9.23	8.94	8.99
4617	NYSE	ERF	Mon, Apr 8, 2019	8.81	9.07	8.77	9.06
4616	NYSE	ERF	Fri, Apr 5, 2019	8.45	8.71	8.45	8.68
4615	NYSE	ERF	Thu, Apr 4, 2019	8.22	8.48	8.17	8.42
4614	NYSE	ERF	Wed, Apr 3, 2019	8.44	8.50	8.18	8.23
4613	NYSE	ERF	Tue, Apr 2, 2019	8.69	8.70	8.29	8.40
4612	NYSE	ERF	Mon, Apr 1, 2019	8.51	8.68	8.46	8.66
4611	NYSE	ERF	Fri, Mar 29, 2019	8.64	8.69	8.38	8.41
4610	NYSE	ERF	Thu, Mar 28, 2019	8.40	8.53	8.40	8.49
4609	NYSE	ERF	Wed, Mar 27, 2019	8.72	8.80	8.52	8.53
4608	NYSE	ERF	Tue, Mar 26, 2019	8.83	8.90	8.71	8.75
4607	NYSE	ERF	Mon, Mar 25, 2019	8.66	8.83	8.60	8.69
4606	NYSE	ERF	Fri, Mar 22, 2019	8.87	8.87	8.53	8.71
4605	NYSE	ERF	Thu, Mar 21, 2019	8.76	9.01	8.71	8.97
4604	NYSE	ERF	Wed, Mar 20, 2019	8.29	8.80	8.23	8.75
4603	NYSE	ERF	Tue, Mar 19, 2019	8.61	8.67	8.26	8.29
4602	NYSE	ERF	Mon, Mar 18, 2019	8.26	8.53	8.21	8.51
4601	NYSE	ERF	Fri, Mar 15, 2019	8.27	8.33	8.17	8.18
4600	NYSE	ERF	Thu, Mar 14, 2019	8.45	8.48	8.31	8.38
4599	NYSE	ERF	Wed, Mar 13, 2019	8.46	8.54	8.41	8.45
4598	NYSE	ERF	Tue, Mar 12, 2019	8.27	8.40	8.27	8.36
4597	NYSE	ERF	Mon, Mar 11, 2019	8.23	8.36	8.20	8.23
4596	NYSE	ERF	Fri, Mar 8, 2019	8.12	8.25	7.94	8.23
4595	NYSE	ERF	Thu, Mar 7, 2019	8.52	8.53	8.30	8.31
4594	NYSE	ERF	Wed, Mar 6, 2019	8.58	8.58	8.37	8.47
4593	NYSE	ERF	Tue, Mar 5, 2019	8.79	8.89	8.67	8.68
4592	NYSE	ERF	Mon, Mar 4, 2019	8.77	8.85	8.52	8.84
4591	NYSE	ERF	Fri, Mar 1, 2019	8.90	9.10	8.70	8.73
4590	NYSE	ERF	Thu, Feb 28, 2019	9.06	9.06	8.70	8.82
4589	NYSE	ERF	Wed, Feb 27, 2019	9.15	9.24	9.00	9.04
4588	NYSE	ERF	Tue, Feb 26, 2019	8.96	9.24	8.96	9.04
4587	NYSE	ERF	Mon, Feb 25, 2019	8.70	8.96	8.64	8.93
4586	NYSE	ERF	Fri, Feb 22, 2019	9.07	9.18	8.76	8.81
4585	NYSE	ERF	Thu, Feb 21, 2019	8.61	8.70	8.43	8.52
4584	NYSE	ERF	Wed, Feb 20, 2019	8.45	8.73	8.43	8.67
4583	NYSE	ERF	Tue, Feb 19, 2019	8.47	8.57	8.39	8.47
4582	NYSE	ERF	Fri, Feb 15, 2019	8.48	8.57	8.44	8.52
4581	NYSE	ERF	Thu, Feb 14, 2019	8.20	8.46	8.17	8.34
4580	NYSE	ERF	Wed, Feb 13, 2019	8.13	8.34	8.11	8.24
4579	NYSE	ERF	Tue, Feb 12, 2019	8.07	8.18	7.96	8.08
4578	NYSE	ERF	Mon, Feb 11, 2019	7.81	7.99	7.79	7.84
4577	NYSE	ERF	Fri, Feb 8, 2019	8.02	8.05	7.88	7.94
4576	NYSE	ERF	Thu, Feb 7, 2019	8.39	8.41	7.93	8.02
4575	NYSE	ERF	Wed, Feb 6, 2019	8.43	8.52	8.39	8.45
4574	NYSE	ERF	Tue, Feb 5, 2019	8.55	8.63	8.44	8.50
4573	NYSE	ERF	Mon, Feb 4, 2019	8.45	8.61	8.44	8.60
4572	NYSE	ERF	Fri, Feb 1, 2019	8.68	8.77	8.58	8.61
4571	NYSE	ERF	Thu, Jan 31, 2019	8.91	9.01	8.63	8.66
4570	NYSE	ERF	Wed, Jan 30, 2019	8.77	8.94	8.65	8.88
4569	NYSE	ERF	Tue, Jan 29, 2019	8.73	8.92	8.62	8.61
4568	NYSE	ERF	Mon, Jan 28, 2019	8.50	8.70	8.38	8.58
4567	NYSE	ERF	Fri, Jan 25, 2019	8.74	8.88	8.61	8.70
4566	NYSE	ERF	Thu, Jan 24, 2019	8.47	8.71	8.39	8.67
4565	NYSE	ERF	Wed, Jan 23, 2019	8.72	8.78	8.46	8.48
4564	NYSE	ERF	Tue, Jan 22, 2019	9.03	9.05	8.67	8.67
4563	NYSE	ERF	Fri, Jan 18, 2019	9.35	9.47	9.24	9.37
4562	NYSE	ERF	Thu, Jan 17, 2019	9.01	9.33	9.01	9.24
4561	NYSE	ERF	Wed, Jan 16, 2019	9.13	9.35	9.10	9.15
4560	NYSE	ERF	Tue, Jan 15, 2019	9.11	9.26	9.10	9.19
4559	NYSE	ERF	Mon, Jan 14, 2019	8.92	9.18	8.92	9.02
4558	NYSE	ERF	Fri, Jan 11, 2019	8.92	9.17	8.80	9.04
4557	NYSE	ERF	Thu, Jan 10, 2019	8.74	9.09	8.72	9.01
4556	NYSE	ERF	Wed, Jan 9, 2019	8.85	8.99	8.59	8.90
4555	NYSE	ERF	Tue, Jan 8, 2019	8.79	8.83	8.57	8.71
4554	NYSE	ERF	Mon, Jan 7, 2019	8.65	8.89	8.41	8.67
4553	NYSE	ERF	Fri, Jan 4, 2019	8.33	8.56	8.30	8.54
4552	NYSE	ERF	Thu, Jan 3, 2019	8.02	8.29	7.83	8.11
4551	NYSE	ERF	Wed, Jan 2, 2019	7.58	8.14	7.44	7.95
4550	NYSE	ERF	Mon, Dec 31, 2018	7.61	7.88	7.60	7.76
4549	NYSE	ERF	Fri, Dec 28, 2018	7.56	7.80	7.51	7.57
4548	NYSE	ERF	Thu, Dec 27, 2018	7.33	7.53	7.22	7.52
4547	NYSE	ERF	Wed, Dec 26, 2018	7.21	7.66	6.84	7.63
4546	NYSE	ERF	Mon, Dec 24, 2018	7.27	7.34	7.09	7.10
4545	NYSE	ERF	Fri, Dec 21, 2018	7.63	7.70	7.29	7.33
4544	NYSE	ERF	Thu, Dec 20, 2018	7.71	8.13	7.61	7.67
4543	NYSE	ERF	Wed, Dec 19, 2018	7.87	8.31	7.83	7.83
4542	NYSE	ERF	Tue, Dec 18, 2018	8.16	8.18	7.79	7.79
4541	NYSE	ERF	Mon, Dec 17, 2018	8.36	8.51	8.10	8.12
4540	NYSE	ERF	Fri, Dec 14, 2018	8.90	8.96	8.50	8.53
4539	NYSE	ERF	Thu, Dec 13, 2018	8.85	9.22	8.79	9.07
4538	NYSE	ERF	Wed, Dec 12, 2018	8.98	9.13	8.83	8.85
4537	NYSE	ERF	Tue, Dec 11, 2018	9.02	9.03	8.66	8.79
4536	NYSE	ERF	Mon, Dec 10, 2018	8.94	9.09	8.69	8.80
4535	NYSE	ERF	Fri, Dec 7, 2018	9.37	9.43	9.05	9.16
4534	NYSE	ERF	Thu, Dec 6, 2018	9.36	9.42	8.95	9.03
4533	NYSE	ERF	Tue, Dec 4, 2018	10.08	10.15	9.63	9.66
4532	NYSE	ERF	Mon, Dec 3, 2018	10.00	10.40	9.83	10.11
4531	NYSE	ERF	Fri, Nov 30, 2018	9.59	9.68	9.37	9.63
4530	NYSE	ERF	Thu, Nov 29, 2018	9.54	9.89	9.53	9.77
4529	NYSE	ERF	Wed, Nov 28, 2018	9.39	9.59	9.28	9.47
4528	NYSE	ERF	Tue, Nov 27, 2018	9.45	9.58	9.25	9.42
4527	NYSE	ERF	Mon, Nov 26, 2018	9.55	9.78	9.46	9.49
4526	NYSE	ERF	Fri, Nov 23, 2018	9.48	9.67	9.09	9.35
4525	NYSE	ERF	Wed, Nov 21, 2018	9.65	9.92	9.55	9.83
4524	NYSE	ERF	Tue, Nov 20, 2018	9.64	9.77	9.42	9.48
4523	NYSE	ERF	Mon, Nov 19, 2018	9.67	9.99	9.62	9.87
4522	NYSE	ERF	Fri, Nov 16, 2018	9.95	9.95	9.52	9.85
4521	NYSE	ERF	Thu, Nov 15, 2018	9.34	9.82	9.34	9.77
4520	NYSE	ERF	Wed, Nov 14, 2018	9.49	9.80	9.14	9.40
4519	NYSE	ERF	Tue, Nov 13, 2018	9.37	9.55	9.17	9.20
4518	NYSE	ERF	Mon, Nov 12, 2018	9.88	9.95	9.38	9.41
4517	NYSE	ERF	Fri, Nov 9, 2018	9.29	9.96	9.03	9.76
4516	NYSE	ERF	Thu, Nov 8, 2018	9.67	9.73	9.40	9.47
4515	NYSE	ERF	Wed, Nov 7, 2018	9.55	9.88	9.53	9.73
4514	NYSE	ERF	Tue, Nov 6, 2018	9.48	9.69	9.31	9.34
4513	NYSE	ERF	Mon, Nov 5, 2018	9.30	9.53	9.23	9.47
4512	NYSE	ERF	Fri, Nov 2, 2018	9.44	9.58	9.10	9.16
4511	NYSE	ERF	Thu, Nov 1, 2018	9.39	9.57	9.21	9.47
4510	NYSE	ERF	Wed, Oct 31, 2018	9.19	9.60	9.19	9.29
4509	NYSE	ERF	Tue, Oct 30, 2018	9.01	9.17	8.90	9.14
4508	NYSE	ERF	Mon, Oct 29, 2018	9.67	9.75	8.96	9.14
4507	NYSE	ERF	Fri, Oct 26, 2018	9.35	9.84	9.21	9.69
4506	NYSE	ERF	Thu, Oct 25, 2018	9.63	9.75	9.42	9.50
4505	NYSE	ERF	Wed, Oct 24, 2018	10.13	10.23	9.53	9.54
4504	NYSE	ERF	Tue, Oct 23, 2018	10.27	10.27	9.84	9.99
4503	NYSE	ERF	Mon, Oct 22, 2018	10.70	10.80	10.56	10.56
4502	NYSE	ERF	Fri, Oct 19, 2018	10.70	10.91	10.70	10.76
4501	NYSE	ERF	Thu, Oct 18, 2018	10.91	10.93	10.40	10.61
4500	NYSE	ERF	Wed, Oct 17, 2018	11.73	11.77	11.10	11.14
4499	NYSE	ERF	Tue, Oct 16, 2018	11.61	11.85	11.56	11.83
4498	NYSE	ERF	Mon, Oct 15, 2018	11.75	11.89	11.53	11.55
4497	NYSE	ERF	Fri, Oct 12, 2018	11.86	11.97	11.56	11.73
4496	NYSE	ERF	Thu, Oct 11, 2018	11.59	11.80	11.40	11.56
4495	NYSE	ERF	Wed, Oct 10, 2018	12.28	12.28	11.67	11.72
4494	NYSE	ERF	Tue, Oct 9, 2018	12.05	12.33	11.95	12.26
4493	NYSE	ERF	Mon, Oct 8, 2018	11.99	12.11	11.84	12.02
4492	NYSE	ERF	Fri, Oct 5, 2018	12.40	12.41	12.14	12.21
4491	NYSE	ERF	Thu, Oct 4, 2018	12.77	12.87	12.33	12.41
4490	NYSE	ERF	Wed, Oct 3, 2018	12.48	12.89	12.39	12.87
4489	NYSE	ERF	Tue, Oct 2, 2018	12.60	12.68	12.40	12.45
4488	NYSE	ERF	Mon, Oct 1, 2018	12.50	12.65	12.43	12.59
4487	NYSE	ERF	Fri, Sep 28, 2018	12.09	12.61	12.09	12.34
4486	NYSE	ERF	Thu, Sep 27, 2018	12.26	12.31	12.09	12.15
4485	NYSE	ERF	Wed, Sep 26, 2018	12.19	12.31	12.10	12.11
4484	NYSE	ERF	Tue, Sep 25, 2018	12.50	12.65	12.28	12.30
4483	NYSE	ERF	Mon, Sep 24, 2018	12.11	12.45	12.11	12.35
4482	NYSE	ERF	Fri, Sep 21, 2018	11.94	12.16	11.87	11.90
4481	NYSE	ERF	Thu, Sep 20, 2018	12.12	12.18	11.82	11.90
4480	NYSE	ERF	Wed, Sep 19, 2018	11.89	12.13	11.88	12.05
4479	NYSE	ERF	Tue, Sep 18, 2018	11.58	11.99	11.58	11.92
4478	NYSE	ERF	Mon, Sep 17, 2018	11.70	11.73	11.46	11.47
4477	NYSE	ERF	Fri, Sep 14, 2018	11.73	11.86	11.64	11.69
4476	NYSE	ERF	Thu, Sep 13, 2018	11.69	11.82	11.57	11.72
4475	NYSE	ERF	Wed, Sep 12, 2018	11.70	11.98	11.70	11.83
4474	NYSE	ERF	Tue, Sep 11, 2018	11.35	11.67	11.34	11.57
4473	NYSE	ERF	Mon, Sep 10, 2018	11.62	11.75	11.37	11.46
4472	NYSE	ERF	Fri, Sep 7, 2018	11.12	11.58	11.03	11.57
4471	NYSE	ERF	Thu, Sep 6, 2018	11.74	11.75	11.11	11.26
4470	NYSE	ERF	Wed, Sep 5, 2018	11.86	11.91	11.47	11.74
4469	NYSE	ERF	Tue, Sep 4, 2018	12.39	12.40	11.87	11.93
4468	NYSE	ERF	Fri, Aug 31, 2018	12.45	12.56	12.32	12.37
4467	NYSE	ERF	Thu, Aug 30, 2018	12.86	12.86	12.49	12.57
4466	NYSE	ERF	Wed, Aug 29, 2018	12.64	12.92	12.64	12.89
4465	NYSE	ERF	Tue, Aug 28, 2018	12.79	12.86	12.55	12.66
4464	NYSE	ERF	Mon, Aug 27, 2018	12.64	12.83	12.64	12.77
4463	NYSE	ERF	Fri, Aug 24, 2018	12.66	12.79	12.56	12.63
4462	NYSE	ERF	Thu, Aug 23, 2018	12.63	12.70	12.48	12.51
4461	NYSE	ERF	Wed, Aug 22, 2018	12.77	12.89	12.69	12.76
4460	NYSE	ERF	Tue, Aug 21, 2018	12.56	12.79	12.52	12.55
4459	NYSE	ERF	Mon, Aug 20, 2018	12.26	12.49	12.26	12.41
4458	NYSE	ERF	Fri, Aug 17, 2018	12.37	12.40	12.19	12.28
4457	NYSE	ERF	Thu, Aug 16, 2018	12.30	12.41	12.21	12.21
4456	NYSE	ERF	Wed, Aug 15, 2018	12.59	12.69	12.11	12.24
4455	NYSE	ERF	Tue, Aug 14, 2018	12.77	12.94	12.64	12.86
4454	NYSE	ERF	Mon, Aug 13, 2018	13.02	13.13	12.55	12.59
4453	NYSE	ERF	Fri, Aug 10, 2018	12.59	13.22	12.57	13.02
4452	NYSE	ERF	Thu, Aug 9, 2018	13.16	13.23	12.74	12.76
4451	NYSE	ERF	Wed, Aug 8, 2018	13.19	13.24	12.93	13.16
4450	NYSE	ERF	Tue, Aug 7, 2018	13.77	13.87	13.29	13.32
4449	NYSE	ERF	Mon, Aug 6, 2018	13.70	13.78	13.56	13.57
4448	NYSE	ERF	Fri, Aug 3, 2018	13.44	13.61	13.41	13.60
4447	NYSE	ERF	Thu, Aug 2, 2018	13.00	13.55	12.95	13.51
4446	NYSE	ERF	Wed, Aug 1, 2018	12.93	13.17	12.85	13.14
4445	NYSE	ERF	Tue, Jul 31, 2018	13.02	13.12	12.76	13.06
4444	NYSE	ERF	Mon, Jul 30, 2018	13.23	13.32	12.96	13.01
4443	NYSE	ERF	Fri, Jul 27, 2018	13.28	13.34	12.96	12.99
4442	NYSE	ERF	Thu, Jul 26, 2018	13.34	13.56	13.32	13.37
4441	NYSE	ERF	Wed, Jul 25, 2018	13.22	13.38	13.11	13.38
4440	NYSE	ERF	Tue, Jul 24, 2018	12.95	13.30	12.90	13.17
4439	NYSE	ERF	Mon, Jul 23, 2018	13.02	13.06	12.86	12.87
4438	NYSE	ERF	Fri, Jul 20, 2018	13.09	13.13	12.91	12.97
4437	NYSE	ERF	Thu, Jul 19, 2018	12.94	13.21	12.87	12.97
4436	NYSE	ERF	Wed, Jul 18, 2018	12.71	12.98	12.57	12.93
4435	NYSE	ERF	Tue, Jul 17, 2018	12.69	12.95	12.61	12.86
4434	NYSE	ERF	Mon, Jul 16, 2018	12.87	12.95	12.63	12.75
4433	NYSE	ERF	Fri, Jul 13, 2018	13.09	13.28	13.08	13.12
4432	NYSE	ERF	Thu, Jul 12, 2018	12.99	13.15	12.77	13.10
4431	NYSE	ERF	Wed, Jul 11, 2018	13.19	13.36	12.72	12.88
4430	NYSE	ERF	Tue, Jul 10, 2018	13.09	13.47	13.08	13.40
4429	NYSE	ERF	Mon, Jul 9, 2018	12.89	13.02	12.85	13.02
4428	NYSE	ERF	Fri, Jul 6, 2018	12.49	12.79	12.42	12.77
4427	NYSE	ERF	Thu, Jul 5, 2018	12.73	12.75	12.49	12.53
4426	NYSE	ERF	Tue, Jul 3, 2018	12.67	12.86	12.52	12.64
4425	NYSE	ERF	Mon, Jul 2, 2018	12.40	12.59	12.21	12.31
4424	NYSE	ERF	Fri, Jun 29, 2018	12.55	12.81	12.51	12.60
4423	NYSE	ERF	Thu, Jun 28, 2018	12.54	12.62	12.28	12.44
4422	NYSE	ERF	Wed, Jun 27, 2018	12.33	12.85	12.33	12.52
4421	NYSE	ERF	Tue, Jun 26, 2018	12.11	12.24	11.89	12.17
4420	NYSE	ERF	Mon, Jun 25, 2018	12.42	12.42	11.93	12.00
4419	NYSE	ERF	Fri, Jun 22, 2018	12.06	12.46	12.00	12.38
4418	NYSE	ERF	Thu, Jun 21, 2018	11.78	11.85	11.55	11.67
4417	NYSE	ERF	Wed, Jun 20, 2018	11.67	12.01	11.59	11.94
4416	NYSE	ERF	Tue, Jun 19, 2018	11.48	11.69	11.42	11.53
4415	NYSE	ERF	Mon, Jun 18, 2018	11.55	11.88	11.51	11.74
4414	NYSE	ERF	Fri, Jun 15, 2018	12.13	12.13	11.46	11.52
4413	NYSE	ERF	Thu, Jun 14, 2018	12.47	12.49	12.10	12.14
4412	NYSE	ERF	Wed, Jun 13, 2018	12.48	12.53	12.29	12.38
4411	NYSE	ERF	Tue, Jun 12, 2018	12.67	12.78	12.45	12.47
4410	NYSE	ERF	Mon, Jun 11, 2018	12.61	12.74	12.49	12.69
4409	NYSE	ERF	Fri, Jun 8, 2018	12.79	12.84	12.48	12.65
4408	NYSE	ERF	Thu, Jun 7, 2018	12.61	12.95	12.61	12.84
4407	NYSE	ERF	Wed, Jun 6, 2018	12.55	12.62	12.35	12.46
4406	NYSE	ERF	Tue, Jun 5, 2018	12.26	12.62	12.16	12.45
4405	NYSE	ERF	Mon, Jun 4, 2018	12.51	12.70	12.19	12.31
4404	NYSE	ERF	Fri, Jun 1, 2018	12.25	12.53	12.14	12.50
4403	NYSE	ERF	Thu, May 31, 2018	12.17	12.49	12.07	12.21
4402	NYSE	ERF	Wed, May 30, 2018	11.74	12.50	11.74	12.34
4401	NYSE	ERF	Tue, May 29, 2018	11.68	11.81	11.53	11.63
4400	NYSE	ERF	Fri, May 25, 2018	11.85	11.90	11.68	11.83
4399	NYSE	ERF	Thu, May 24, 2018	12.12	12.46	11.96	12.23
4398	NYSE	ERF	Wed, May 23, 2018	12.47	12.64	12.29	12.33
4397	NYSE	ERF	Tue, May 22, 2018	13.37	13.49	12.56	12.58
4396	NYSE	ERF	Mon, May 21, 2018	12.96	13.43	12.89	13.37
4395	NYSE	ERF	Fri, May 18, 2018	12.78	12.93	12.67	12.83
4394	NYSE	ERF	Thu, May 17, 2018	12.44	12.84	12.41	12.79
4393	NYSE	ERF	Wed, May 16, 2018	12.19	12.44	12.17	12.34
4392	NYSE	ERF	Tue, May 15, 2018	12.25	12.25	12.01	12.21
4391	NYSE	ERF	Mon, May 14, 2018	12.12	12.76	12.05	12.23
4390	NYSE	ERF	Fri, May 11, 2018	12.19	12.20	11.94	12.01
4389	NYSE	ERF	Thu, May 10, 2018	12.50	12.50	12.10	12.18
4388	NYSE	ERF	Wed, May 9, 2018	12.50	12.75	12.38	12.42
4387	NYSE	ERF	Tue, May 8, 2018	12.09	12.33	11.70	12.29
4386	NYSE	ERF	Mon, May 7, 2018	11.96	12.39	11.92	12.13
4385	NYSE	ERF	Fri, May 4, 2018	11.40	11.85	11.26	11.76
4384	NYSE	ERF	Thu, May 3, 2018	11.52	11.75	11.40	11.44
4383	NYSE	ERF	Wed, May 2, 2018	11.44	11.81	11.44	11.68
4382	NYSE	ERF	Tue, May 1, 2018	11.49	11.59	11.36	11.49
4381	NYSE	ERF	Mon, Apr 30, 2018	11.53	11.63	11.46	11.61
4380	NYSE	ERF	Fri, Apr 27, 2018	11.88	11.97	11.58	11.59
4379	NYSE	ERF	Thu, Apr 26, 2018	11.95	12.12	11.95	11.97
4378	NYSE	ERF	Wed, Apr 25, 2018	11.93	12.02	11.81	11.96
4377	NYSE	ERF	Tue, Apr 24, 2018	11.88	12.47	11.87	12.01
4376	NYSE	ERF	Mon, Apr 23, 2018	11.58	11.90	11.50	11.89
4375	NYSE	ERF	Fri, Apr 20, 2018	11.68	11.82	11.58	11.70
4374	NYSE	ERF	Thu, Apr 19, 2018	12.12	12.37	11.77	11.82
4373	NYSE	ERF	Wed, Apr 18, 2018	12.00	12.24	11.85	12.08
4372	NYSE	ERF	Tue, Apr 17, 2018	11.52	11.75	11.27	11.70
4371	NYSE	ERF	Mon, Apr 16, 2018	11.84	11.84	11.43	11.45
4370	NYSE	ERF	Fri, Apr 13, 2018	11.76	11.85	11.64	11.84
4369	NYSE	ERF	Thu, Apr 12, 2018	11.67	11.73	11.55	11.65
4368	NYSE	ERF	Wed, Apr 11, 2018	11.42	11.82	11.34	11.70
4367	NYSE	ERF	Tue, Apr 10, 2018	11.24	11.56	11.17	11.42
4366	NYSE	ERF	Mon, Apr 9, 2018	11.22	11.22	10.94	10.95
4365	NYSE	ERF	Fri, Apr 6, 2018	11.38	11.58	10.89	11.02
4364	NYSE	ERF	Thu, Apr 5, 2018	11.19	11.53	11.15	11.51
4363	NYSE	ERF	Wed, Apr 4, 2018	10.92	11.16	10.75	11.15
4362	NYSE	ERF	Tue, Apr 3, 2018	11.04	11.22	10.91	11.17
4361	NYSE	ERF	Mon, Apr 2, 2018	11.18	11.28	10.79	10.96
4360	NYSE	ERF	Thu, Mar 29, 2018	11.05	11.32	11.05	11.26
4359	NYSE	ERF	Wed, Mar 28, 2018	11.21	11.28	10.93	11.03
4358	NYSE	ERF	Tue, Mar 27, 2018	11.49	11.52	11.18	11.20
4357	NYSE	ERF	Mon, Mar 26, 2018	11.62	11.71	11.28	11.53
4356	NYSE	ERF	Fri, Mar 23, 2018	11.78	11.89	11.45	11.46
4355	NYSE	ERF	Thu, Mar 22, 2018	11.85	11.95	11.54	11.66
4354	NYSE	ERF	Wed, Mar 21, 2018	11.17	12.26	11.17	12.05
4353	NYSE	ERF	Tue, Mar 20, 2018	10.88	11.06	10.80	11.02
4352	NYSE	ERF	Mon, Mar 19, 2018	10.96	10.99	10.59	10.71
4351	NYSE	ERF	Fri, Mar 16, 2018	10.84	11.01	10.73	10.99
4350	NYSE	ERF	Thu, Mar 15, 2018	10.94	11.01	10.81	10.85
4349	NYSE	ERF	Wed, Mar 14, 2018	11.03	11.06	10.85	10.90
4348	NYSE	ERF	Tue, Mar 13, 2018	10.96	11.17	10.96	10.96
4347	NYSE	ERF	Mon, Mar 12, 2018	11.02	11.12	10.85	10.95
4346	NYSE	ERF	Fri, Mar 9, 2018	11.00	11.13	10.94	11.06
4345	NYSE	ERF	Thu, Mar 8, 2018	10.80	10.91	10.73	10.87
4344	NYSE	ERF	Wed, Mar 7, 2018	10.88	11.03	10.62	10.76
4343	NYSE	ERF	Tue, Mar 6, 2018	11.27	11.27	10.98	11.02
4342	NYSE	ERF	Mon, Mar 5, 2018	10.83	11.28	10.81	11.15
4341	NYSE	ERF	Fri, Mar 2, 2018	10.74	10.93	10.49	10.90
4340	NYSE	ERF	Thu, Mar 1, 2018	11.01	11.10	10.75	10.87
4339	NYSE	ERF	Wed, Feb 28, 2018	11.56	11.62	11.05	11.05
4338	NYSE	ERF	Tue, Feb 27, 2018	11.59	11.77	11.50	11.50
4337	NYSE	ERF	Mon, Feb 26, 2018	11.49	11.87	11.46	11.60
4336	NYSE	ERF	Fri, Feb 23, 2018	10.64	11.51	10.52	11.47
4335	NYSE	ERF	Thu, Feb 22, 2018	10.32	10.66	10.28	10.47
4334	NYSE	ERF	Wed, Feb 21, 2018	10.42	10.51	10.24	10.24
4333	NYSE	ERF	Tue, Feb 20, 2018	10.59	10.66	10.43	10.47
4332	NYSE	ERF	Fri, Feb 16, 2018	10.54	10.72	10.49	10.56
4331	NYSE	ERF	Thu, Feb 15, 2018	10.59	10.71	10.37	10.62
4330	NYSE	ERF	Wed, Feb 14, 2018	10.03	10.58	10.00	10.54
4329	NYSE	ERF	Tue, Feb 13, 2018	10.19	10.32	10.11	10.17
4328	NYSE	ERF	Mon, Feb 12, 2018	10.19	10.34	10.05	10.30
4327	NYSE	ERF	Fri, Feb 9, 2018	10.17	10.24	9.66	9.99
4326	NYSE	ERF	Thu, Feb 8, 2018	10.53	10.64	10.07	10.07
4325	NYSE	ERF	Wed, Feb 7, 2018	10.74	10.93	10.53	10.53
4324	NYSE	ERF	Tue, Feb 6, 2018	10.52	10.95	10.50	10.83
4323	NYSE	ERF	Mon, Feb 5, 2018	10.77	11.04	10.69	10.76
4322	NYSE	ERF	Fri, Feb 2, 2018	11.01	11.08	10.87	10.92
4321	NYSE	ERF	Thu, Feb 1, 2018	11.39	11.48	11.14	11.28
4320	NYSE	ERF	Wed, Jan 31, 2018	11.31	11.45	11.22	11.36
4319	NYSE	ERF	Tue, Jan 30, 2018	11.35	11.40	11.10	11.24
4318	NYSE	ERF	Mon, Jan 29, 2018	11.53	11.67	11.34	11.56
4317	NYSE	ERF	Fri, Jan 26, 2018	11.71	11.78	11.58	11.65
4316	NYSE	ERF	Thu, Jan 25, 2018	11.54	11.71	11.48	11.66
4315	NYSE	ERF	Wed, Jan 24, 2018	11.38	11.48	11.14	11.46
4314	NYSE	ERF	Tue, Jan 23, 2018	11.12	11.37	10.96	11.35
4313	NYSE	ERF	Mon, Jan 22, 2018	10.85	11.08	10.81	11.06
4312	NYSE	ERF	Fri, Jan 19, 2018	10.83	10.93	10.64	10.79
4311	NYSE	ERF	Thu, Jan 18, 2018	11.07	11.13	10.85	10.85
4310	NYSE	ERF	Wed, Jan 17, 2018	11.15	11.21	10.86	11.12
4309	NYSE	ERF	Tue, Jan 16, 2018	10.94	11.21	10.93	10.93
4308	NYSE	ERF	Fri, Jan 12, 2018	10.59	10.96	10.59	10.88
4307	NYSE	ERF	Thu, Jan 11, 2018	10.40	10.75	10.34	10.61
4306	NYSE	ERF	Wed, Jan 10, 2018	10.41	10.54	10.27	10.30
4305	NYSE	ERF	Tue, Jan 9, 2018	10.02	10.46	10.02	10.40
4304	NYSE	ERF	Mon, Jan 8, 2018	9.99	10.04	9.82	10.00
4303	NYSE	ERF	Fri, Jan 5, 2018	10.06	10.16	9.91	9.97
4302	NYSE	ERF	Thu, Jan 4, 2018	10.13	10.18	10.04	10.11
4301	NYSE	ERF	Wed, Jan 3, 2018	10.06	10.15	9.93	10.11
4300	NYSE	ERF	Tue, Jan 2, 2018	9.88	10.07	9.84	10.02
4299	NYSE	ERF	Fri, Dec 29, 2017	10.00	10.14	9.79	9.79
4298	NYSE	ERF	Thu, Dec 28, 2017	9.65	9.98	9.61	9.94
4297	NYSE	ERF	Wed, Dec 27, 2017	9.59	9.65	9.52	9.59
4296	NYSE	ERF	Tue, Dec 26, 2017	9.52	9.63	9.41	9.60
4295	NYSE	ERF	Fri, Dec 22, 2017	9.51	9.57	9.36	9.46
4294	NYSE	ERF	Thu, Dec 21, 2017	8.97	9.57	8.96	9.54
4293	NYSE	ERF	Wed, Dec 20, 2017	8.60	9.09	8.53	9.01
4292	NYSE	ERF	Tue, Dec 19, 2017	8.59	8.65	8.49	8.56
4291	NYSE	ERF	Mon, Dec 18, 2017	8.33	8.68	8.33	8.56
4290	NYSE	ERF	Fri, Dec 15, 2017	8.54	8.58	8.25	8.25
4289	NYSE	ERF	Thu, Dec 14, 2017	8.63	8.78	8.42	8.48
4288	NYSE	ERF	Wed, Dec 13, 2017	8.95	8.97	8.69	8.69
4287	NYSE	ERF	Tue, Dec 12, 2017	8.99	9.04	8.80	8.90
4286	NYSE	ERF	Mon, Dec 11, 2017	8.82	9.03	8.80	8.99
4285	NYSE	ERF	Fri, Dec 8, 2017	8.85	8.93	8.80	8.83
4284	NYSE	ERF	Thu, Dec 7, 2017	8.88	8.95	8.68	8.76
4283	NYSE	ERF	Wed, Dec 6, 2017	9.16	9.17	8.85	8.88
4282	NYSE	ERF	Tue, Dec 5, 2017	9.11	9.37	9.11	9.27
4281	NYSE	ERF	Mon, Dec 4, 2017	9.31	9.42	9.12	9.17
4280	NYSE	ERF	Fri, Dec 1, 2017	9.25	9.48	9.24	9.39
4279	NYSE	ERF	Thu, Nov 30, 2017	8.82	9.23	8.80	9.11
4278	NYSE	ERF	Wed, Nov 29, 2017	8.79	8.85	8.61	8.75
4277	NYSE	ERF	Tue, Nov 28, 2017	8.81	8.86	8.74	8.78
4276	NYSE	ERF	Mon, Nov 27, 2017	9.14	9.14	8.84	8.85
4275	NYSE	ERF	Fri, Nov 24, 2017	9.15	9.22	9.09	9.18
4274	NYSE	ERF	Wed, Nov 22, 2017	9.04	9.10	8.98	9.05
4273	NYSE	ERF	Tue, Nov 21, 2017	9.03	9.09	8.84	8.92
4272	NYSE	ERF	Mon, Nov 20, 2017	9.04	9.07	8.90	8.96
4271	NYSE	ERF	Fri, Nov 17, 2017	9.12	9.27	9.04	9.10
4270	NYSE	ERF	Thu, Nov 16, 2017	9.08	9.19	9.02	9.02
4269	NYSE	ERF	Wed, Nov 15, 2017	9.13	9.22	8.97	9.08
4268	NYSE	ERF	Tue, Nov 14, 2017	9.59	9.65	9.24	9.25
4267	NYSE	ERF	Mon, Nov 13, 2017	9.82	9.93	9.64	9.69
4266	NYSE	ERF	Fri, Nov 10, 2017	9.81	9.92	9.76	9.84
4265	NYSE	ERF	Thu, Nov 9, 2017	9.70	9.99	9.60	9.85
4264	NYSE	ERF	Wed, Nov 8, 2017	9.87	10.03	9.76	9.95
4263	NYSE	ERF	Tue, Nov 7, 2017	10.06	10.14	9.88	9.91
4262	NYSE	ERF	Mon, Nov 6, 2017	9.60	10.18	9.58	10.12
4261	NYSE	ERF	Fri, Nov 3, 2017	9.41	9.59	9.34	9.55
4260	NYSE	ERF	Thu, Nov 2, 2017	9.34	9.47	9.30	9.37
4259	NYSE	ERF	Wed, Nov 1, 2017	9.28	9.39	9.23	9.37
4258	NYSE	ERF	Tue, Oct 31, 2017	9.08	9.25	8.98	9.17
4257	NYSE	ERF	Mon, Oct 30, 2017	8.88	9.20	8.88	9.11
4256	NYSE	ERF	Fri, Oct 27, 2017	8.39	8.85	8.29	8.85
4255	NYSE	ERF	Thu, Oct 26, 2017	8.37	8.48	8.23	8.42
4254	NYSE	ERF	Wed, Oct 25, 2017	8.43	8.50	8.25	8.33
4253	NYSE	ERF	Tue, Oct 24, 2017	8.56	8.60	8.46	8.48
4252	NYSE	ERF	Mon, Oct 23, 2017	8.60	8.69	8.54	8.54
4251	NYSE	ERF	Fri, Oct 20, 2017	8.66	8.69	8.54	8.60
4250	NYSE	ERF	Thu, Oct 19, 2017	8.70	8.77	8.66	8.70
4249	NYSE	ERF	Wed, Oct 18, 2017	8.84	9.10	8.80	8.80
4248	NYSE	ERF	Tue, Oct 17, 2017	8.87	8.89	8.72	8.81
4247	NYSE	ERF	Mon, Oct 16, 2017	9.07	9.14	8.86	8.90
4246	NYSE	ERF	Fri, Oct 13, 2017	9.03	9.17	8.98	9.01
4245	NYSE	ERF	Thu, Oct 12, 2017	9.00	9.12	8.84	8.92
4244	NYSE	ERF	Wed, Oct 11, 2017	9.17	9.18	9.00	9.09
4243	NYSE	ERF	Tue, Oct 10, 2017	9.35	9.35	9.14	9.14
4242	NYSE	ERF	Mon, Oct 9, 2017	9.26	9.31	9.15	9.19
4241	NYSE	ERF	Fri, Oct 6, 2017	9.40	9.43	9.20	9.20
4240	NYSE	ERF	Thu, Oct 5, 2017	9.57	9.67	9.50	9.54
4239	NYSE	ERF	Wed, Oct 4, 2017	9.55	9.73	9.53	9.58
4238	NYSE	ERF	Tue, Oct 3, 2017	9.60	9.70	9.50	9.59
4237	NYSE	ERF	Mon, Oct 2, 2017	9.59	9.75	9.57	9.65
4236	NYSE	ERF	Fri, Sep 29, 2017	9.73	9.90	9.61	9.87
4235	NYSE	ERF	Thu, Sep 28, 2017	9.93	9.98	9.72	9.79
4234	NYSE	ERF	Wed, Sep 27, 2017	9.98	10.11	9.73	9.90
4233	NYSE	ERF	Tue, Sep 26, 2017	9.89	10.08	9.84	9.97
4232	NYSE	ERF	Mon, Sep 25, 2017	10.15	10.21	9.93	9.93
4231	NYSE	ERF	Fri, Sep 22, 2017	9.97	10.18	9.92	10.06
4230	NYSE	ERF	Thu, Sep 21, 2017	9.59	10.06	9.56	10.05
4229	NYSE	ERF	Wed, Sep 20, 2017	9.42	9.95	9.40	9.67
4228	NYSE	ERF	Tue, Sep 19, 2017	9.32	9.41	9.28	9.39
4227	NYSE	ERF	Mon, Sep 18, 2017	9.25	9.38	9.21	9.29
4226	NYSE	ERF	Fri, Sep 15, 2017	9.54	9.54	9.26	9.31
4225	NYSE	ERF	Thu, Sep 14, 2017	9.25	9.51	9.25	9.46
4224	NYSE	ERF	Wed, Sep 13, 2017	9.02	9.21	9.00	9.20
4223	NYSE	ERF	Tue, Sep 12, 2017	8.98	9.09	8.93	8.99
4222	NYSE	ERF	Mon, Sep 11, 2017	8.91	9.03	8.87	8.93
4221	NYSE	ERF	Fri, Sep 8, 2017	9.05	9.15	8.85	8.91
4220	NYSE	ERF	Thu, Sep 7, 2017	8.97	9.16	8.95	9.11
4219	NYSE	ERF	Wed, Sep 6, 2017	8.97	9.09	8.92	9.03
4218	NYSE	ERF	Tue, Sep 5, 2017	9.02	9.09	8.79	8.92
4217	NYSE	ERF	Fri, Sep 1, 2017	8.88	8.99	8.77	8.93
4216	NYSE	ERF	Thu, Aug 31, 2017	8.60	8.93	8.57	8.88
4215	NYSE	ERF	Wed, Aug 30, 2017	8.60	8.70	8.43	8.52
4214	NYSE	ERF	Tue, Aug 29, 2017	8.55	8.73	8.44	8.69
4213	NYSE	ERF	Mon, Aug 28, 2017	8.81	8.83	8.56	8.60
4212	NYSE	ERF	Fri, Aug 25, 2017	8.80	8.83	8.69	8.81
4211	NYSE	ERF	Thu, Aug 24, 2017	8.86	8.92	8.75	8.76
4210	NYSE	ERF	Wed, Aug 23, 2017	8.59	8.93	8.57	8.90
4209	NYSE	ERF	Tue, Aug 22, 2017	8.76	8.83	8.62	8.64
4208	NYSE	ERF	Mon, Aug 21, 2017	8.94	8.98	8.62	8.70
4207	NYSE	ERF	Fri, Aug 18, 2017	8.99	9.19	8.91	9.00
4206	NYSE	ERF	Thu, Aug 17, 2017	8.88	9.08	8.88	8.92
4205	NYSE	ERF	Wed, Aug 16, 2017	8.90	9.09	8.89	8.95
4204	NYSE	ERF	Tue, Aug 15, 2017	8.91	8.98	8.84	8.91
4203	NYSE	ERF	Mon, Aug 14, 2017	9.26	9.32	8.90	8.94
4202	NYSE	ERF	Fri, Aug 11, 2017	8.45	9.28	8.45	9.19
4201	NYSE	ERF	Thu, Aug 10, 2017	8.71	8.82	8.43	8.44
4200	NYSE	ERF	Wed, Aug 9, 2017	8.81	8.92	8.60	8.63
4199	NYSE	ERF	Tue, Aug 8, 2017	8.67	8.87	8.59	8.78
4198	NYSE	ERF	Mon, Aug 7, 2017	8.75	8.80	8.55	8.62
4197	NYSE	ERF	Fri, Aug 4, 2017	8.65	8.88	8.58	8.85
4196	NYSE	ERF	Thu, Aug 3, 2017	8.95	9.01	8.56	8.65
4195	NYSE	ERF	Wed, Aug 2, 2017	8.87	9.05	8.78	8.95
4194	NYSE	ERF	Tue, Aug 1, 2017	8.95	9.10	8.86	8.88
4193	NYSE	ERF	Mon, Jul 31, 2017	9.08	9.11	8.83	9.02
4192	NYSE	ERF	Fri, Jul 28, 2017	9.24	9.36	9.02	9.12
4191	NYSE	ERF	Thu, Jul 27, 2017	9.05	9.22	8.98	9.19
4190	NYSE	ERF	Wed, Jul 26, 2017	9.14	9.42	9.02	9.02
4189	NYSE	ERF	Tue, Jul 25, 2017	8.77	9.13	8.73	9.03
4188	NYSE	ERF	Mon, Jul 24, 2017	8.68	8.85	8.52	8.55
4187	NYSE	ERF	Fri, Jul 21, 2017	8.49	8.77	8.44	8.67
4186	NYSE	ERF	Thu, Jul 20, 2017	8.79	8.82	8.51	8.52
4185	NYSE	ERF	Wed, Jul 19, 2017	8.34	8.77	8.34	8.74
4184	NYSE	ERF	Tue, Jul 18, 2017	8.50	8.51	8.25	8.38
4183	NYSE	ERF	Mon, Jul 17, 2017	8.45	8.55	8.32	8.37
4182	NYSE	ERF	Fri, Jul 14, 2017	8.33	8.48	8.29	8.45
4181	NYSE	ERF	Thu, Jul 13, 2017	8.29	8.37	8.21	8.32
4180	NYSE	ERF	Wed, Jul 12, 2017	8.20	8.46	8.12	8.29
4179	NYSE	ERF	Tue, Jul 11, 2017	8.08	8.18	7.86	8.16
4178	NYSE	ERF	Mon, Jul 10, 2017	7.66	7.98	7.61	7.94
4177	NYSE	ERF	Fri, Jul 7, 2017	7.90	7.90	7.55	7.70
4176	NYSE	ERF	Thu, Jul 6, 2017	8.07	8.15	7.89	7.94
4175	NYSE	ERF	Wed, Jul 5, 2017	8.25	8.30	7.96	7.99
4174	NYSE	ERF	Mon, Jul 3, 2017	8.17	8.41	8.14	8.36
4173	NYSE	ERF	Fri, Jun 30, 2017	8.20	8.29	7.99	8.12
4172	NYSE	ERF	Thu, Jun 29, 2017	8.39	8.50	8.12	8.18
4171	NYSE	ERF	Wed, Jun 28, 2017	8.27	8.41	8.04	8.40
4170	NYSE	ERF	Tue, Jun 27, 2017	8.12	8.41	8.12	8.21
4169	NYSE	ERF	Mon, Jun 26, 2017	8.17	8.28	8.00	8.14
4168	NYSE	ERF	Fri, Jun 23, 2017	8.05	8.15	7.91	8.10
4167	NYSE	ERF	Thu, Jun 22, 2017	7.91	8.16	7.86	8.01
4166	NYSE	ERF	Wed, Jun 21, 2017	7.89	8.16	7.63	7.74
4165	NYSE	ERF	Tue, Jun 20, 2017	7.80	7.98	7.63	7.92
4164	NYSE	ERF	Mon, Jun 19, 2017	8.03	8.06	7.88	7.97
4163	NYSE	ERF	Fri, Jun 16, 2017	7.87	8.09	7.79	8.06
4162	NYSE	ERF	Thu, Jun 15, 2017	7.95	8.09	7.77	7.81
4161	NYSE	ERF	Wed, Jun 14, 2017	8.35	8.49	7.99	8.02
4160	NYSE	ERF	Tue, Jun 13, 2017	8.32	8.40	8.17	8.39
4159	NYSE	ERF	Mon, Jun 12, 2017	8.39	8.54	8.22	8.28
4158	NYSE	ERF	Fri, Jun 9, 2017	8.12	8.32	8.11	8.26
4157	NYSE	ERF	Thu, Jun 8, 2017	7.97	8.19	7.97	8.10
4156	NYSE	ERF	Wed, Jun 7, 2017	8.30	8.49	7.90	8.04
4155	NYSE	ERF	Tue, Jun 6, 2017	7.96	8.40	7.94	8.35
4154	NYSE	ERF	Mon, Jun 5, 2017	7.90	8.02	7.76	7.98
4153	NYSE	ERF	Fri, Jun 2, 2017	7.92	7.98	7.80	7.91
4152	NYSE	ERF	Thu, Jun 1, 2017	7.92	8.27	7.92	8.04
4151	NYSE	ERF	Wed, May 31, 2017	7.76	7.90	7.71	7.89
4150	NYSE	ERF	Tue, May 30, 2017	7.90	8.00	7.79	7.94
4149	NYSE	ERF	Fri, May 26, 2017	7.86	8.07	7.86	8.04
4148	NYSE	ERF	Thu, May 25, 2017	8.25	8.49	7.80	7.86
4147	NYSE	ERF	Wed, May 24, 2017	8.40	8.52	8.19	8.32
4146	NYSE	ERF	Tue, May 23, 2017	8.26	8.46	8.17	8.43
4145	NYSE	ERF	Mon, May 22, 2017	8.43	8.44	8.14	8.19
4144	NYSE	ERF	Fri, May 19, 2017	8.09	8.44	8.09	8.36
4143	NYSE	ERF	Thu, May 18, 2017	7.84	8.08	7.75	8.02
4142	NYSE	ERF	Wed, May 17, 2017	8.05	8.08	7.88	7.89
4141	NYSE	ERF	Tue, May 16, 2017	8.15	8.24	8.03	8.08
4140	NYSE	ERF	Mon, May 15, 2017	8.23	8.28	8.07	8.11
4139	NYSE	ERF	Fri, May 12, 2017	8.00	8.02	7.91	7.95
4138	NYSE	ERF	Thu, May 11, 2017	8.14	8.14	7.96	7.98
4137	NYSE	ERF	Wed, May 10, 2017	7.78	8.13	7.77	8.04
4136	NYSE	ERF	Tue, May 9, 2017	7.71	7.77	7.54	7.70
4135	NYSE	ERF	Mon, May 8, 2017	7.35	7.74	7.30	7.68
4134	NYSE	ERF	Fri, May 5, 2017	6.75	7.29	6.71	7.26
4133	NYSE	ERF	Thu, May 4, 2017	6.83	6.84	6.52	6.52
4132	NYSE	ERF	Wed, May 3, 2017	7.08	7.14	6.85	6.95
4131	NYSE	ERF	Tue, May 2, 2017	7.20	7.26	7.04	7.11
4130	NYSE	ERF	Mon, May 1, 2017	7.20	7.24	7.12	7.18
4129	NYSE	ERF	Fri, Apr 28, 2017	7.42	7.46	7.20	7.21
4128	NYSE	ERF	Thu, Apr 27, 2017	7.30	7.35	7.05	7.34
4127	NYSE	ERF	Wed, Apr 26, 2017	7.50	7.69	7.39	7.43
4126	NYSE	ERF	Tue, Apr 25, 2017	7.42	7.62	7.34	7.60
4125	NYSE	ERF	Mon, Apr 24, 2017	7.54	7.59	7.44	7.46
4124	NYSE	ERF	Fri, Apr 21, 2017	7.50	7.60	7.47	7.50
4123	NYSE	ERF	Thu, Apr 20, 2017	7.75	7.82	7.52	7.52
4122	NYSE	ERF	Wed, Apr 19, 2017	7.99	8.02	7.68	7.71
4121	NYSE	ERF	Tue, Apr 18, 2017	7.82	8.07	7.78	7.99
4120	NYSE	ERF	Mon, Apr 17, 2017	7.87	7.96	7.82	7.88
4119	NYSE	ERF	Thu, Apr 13, 2017	8.12	8.21	7.82	7.84
4118	NYSE	ERF	Wed, Apr 12, 2017	8.15	8.23	8.02	8.09
4117	NYSE	ERF	Tue, Apr 11, 2017	8.04	8.25	8.01	8.15
4116	NYSE	ERF	Mon, Apr 10, 2017	7.94	8.10	7.89	8.02
4115	NYSE	ERF	Fri, Apr 7, 2017	8.02	8.02	7.82	7.83
4114	NYSE	ERF	Thu, Apr 6, 2017	8.10	8.11	7.91	8.00
4113	NYSE	ERF	Wed, Apr 5, 2017	8.17	8.29	7.98	7.99
4112	NYSE	ERF	Tue, Apr 4, 2017	7.99	8.06	7.78	8.03
4111	NYSE	ERF	Mon, Apr 3, 2017	8.02	8.07	7.78	7.96
4110	NYSE	ERF	Fri, Mar 31, 2017	7.97	8.09	7.87	8.05
4109	NYSE	ERF	Thu, Mar 30, 2017	8.22	8.30	8.00	8.00
4108	NYSE	ERF	Wed, Mar 29, 2017	8.01	8.23	7.82	8.20
4107	NYSE	ERF	Tue, Mar 28, 2017	7.69	7.97	7.62	7.92
4106	NYSE	ERF	Mon, Mar 27, 2017	7.31	7.68	7.26	7.64
4105	NYSE	ERF	Fri, Mar 24, 2017	7.58	7.68	7.48	7.49
4104	NYSE	ERF	Thu, Mar 23, 2017	7.42	7.69	7.34	7.55
4103	NYSE	ERF	Wed, Mar 22, 2017	7.54	7.64	7.28	7.46
4102	NYSE	ERF	Tue, Mar 21, 2017	8.09	8.25	7.60	7.61
4101	NYSE	ERF	Mon, Mar 20, 2017	7.95	8.18	7.95	8.06
4100	NYSE	ERF	Fri, Mar 17, 2017	8.30	8.35	8.07	8.08
4099	NYSE	ERF	Thu, Mar 16, 2017	8.36	8.36	8.19	8.24
4098	NYSE	ERF	Wed, Mar 15, 2017	8.19	8.40	8.14	8.37
4097	NYSE	ERF	Tue, Mar 14, 2017	7.99	8.17	7.86	8.04
4096	NYSE	ERF	Mon, Mar 13, 2017	8.28	8.35	8.17	8.20
4095	NYSE	ERF	Fri, Mar 10, 2017	8.23	8.37	8.06	8.29
4094	NYSE	ERF	Thu, Mar 9, 2017	8.37	8.42	7.78	8.13
4093	NYSE	ERF	Wed, Mar 8, 2017	8.96	9.03	8.38	8.42
4092	NYSE	ERF	Tue, Mar 7, 2017	9.04	9.16	8.97	9.05
4091	NYSE	ERF	Mon, Mar 6, 2017	8.77	9.01	8.62	8.97
4090	NYSE	ERF	Fri, Mar 3, 2017	8.85	8.95	8.71	8.78
4089	NYSE	ERF	Thu, Mar 2, 2017	9.02	9.14	8.73	8.85
4088	NYSE	ERF	Wed, Mar 1, 2017	8.90	9.24	8.85	9.17
4087	NYSE	ERF	Tue, Feb 28, 2017	8.72	8.92	8.70	8.81
4086	NYSE	ERF	Mon, Feb 27, 2017	8.78	9.00	8.73	8.77
4085	NYSE	ERF	Fri, Feb 24, 2017	9.01	9.11	8.58	8.73
4084	NYSE	ERF	Thu, Feb 23, 2017	9.25	9.32	8.99	9.01
4083	NYSE	ERF	Wed, Feb 22, 2017	9.40	9.44	9.01	9.02
4082	NYSE	ERF	Tue, Feb 21, 2017	9.45	9.59	9.32	9.57
4081	NYSE	ERF	Fri, Feb 17, 2017	9.34	9.46	9.31	9.36
4080	NYSE	ERF	Thu, Feb 16, 2017	9.58	9.65	9.28	9.44
4079	NYSE	ERF	Wed, Feb 15, 2017	9.51	9.65	9.45	9.51
4078	NYSE	ERF	Tue, Feb 14, 2017	9.45	9.61	9.39	9.61
4077	NYSE	ERF	Mon, Feb 13, 2017	9.28	9.40	9.26	9.38
4076	NYSE	ERF	Fri, Feb 10, 2017	9.07	9.51	9.07	9.41
4075	NYSE	ERF	Thu, Feb 9, 2017	8.64	8.88	8.64	8.81
4074	NYSE	ERF	Wed, Feb 8, 2017	8.50	8.53	8.30	8.51
4073	NYSE	ERF	Tue, Feb 7, 2017	8.78	8.86	8.52	8.57
4072	NYSE	ERF	Mon, Feb 6, 2017	9.28	9.35	8.90	8.93
4071	NYSE	ERF	Fri, Feb 3, 2017	9.36	9.50	9.25	9.30
4070	NYSE	ERF	Thu, Feb 2, 2017	9.19	9.43	9.18	9.37
4069	NYSE	ERF	Wed, Feb 1, 2017	9.01	9.31	9.00	9.20
4068	NYSE	ERF	Tue, Jan 31, 2017	8.67	8.94	8.66	8.93
4067	NYSE	ERF	Mon, Jan 30, 2017	8.95	8.96	8.55	8.62
4066	NYSE	ERF	Fri, Jan 27, 2017	9.16	9.26	8.95	9.06
4065	NYSE	ERF	Thu, Jan 26, 2017	9.52	9.61	9.22	9.31
4064	NYSE	ERF	Wed, Jan 25, 2017	9.38	9.57	9.33	9.56
4063	NYSE	ERF	Tue, Jan 24, 2017	8.97	9.48	8.96	9.43
4062	NYSE	ERF	Mon, Jan 23, 2017	8.93	9.02	8.82	8.87
4061	NYSE	ERF	Fri, Jan 20, 2017	9.28	9.36	9.06	9.10
4060	NYSE	ERF	Thu, Jan 19, 2017	9.08	9.24	9.04	9.21
4059	NYSE	ERF	Wed, Jan 18, 2017	9.15	9.26	9.03	9.06
4058	NYSE	ERF	Tue, Jan 17, 2017	9.35	9.44	9.26	9.34
4057	NYSE	ERF	Fri, Jan 13, 2017	8.92	9.28	8.86	9.23
4056	NYSE	ERF	Thu, Jan 12, 2017	9.10	9.23	8.94	8.98
4055	NYSE	ERF	Wed, Jan 11, 2017	8.95	9.03	8.77	8.89
4054	NYSE	ERF	Tue, Jan 10, 2017	8.92	9.03	8.81	8.88
4053	NYSE	ERF	Mon, Jan 9, 2017	9.04	9.10	8.83	8.88
4052	NYSE	ERF	Fri, Jan 6, 2017	9.39	9.39	9.17	9.24
4051	NYSE	ERF	Thu, Jan 5, 2017	9.54	9.74	9.34	9.39
4050	NYSE	ERF	Wed, Jan 4, 2017	9.60	9.68	9.44	9.48
4049	NYSE	ERF	Tue, Jan 3, 2017	9.65	9.95	9.32	9.53
4048	NYSE	ERF	Fri, Dec 30, 2016	9.38	9.53	9.38	9.48
4047	NYSE	ERF	Thu, Dec 29, 2016	9.40	9.49	9.39	9.43
4046	NYSE	ERF	Wed, Dec 28, 2016	9.34	9.51	9.34	9.43
4045	NYSE	ERF	Tue, Dec 27, 2016	9.30	9.51	9.30	9.47
4044	NYSE	ERF	Fri, Dec 23, 2016	9.37	9.38	9.24	9.27
4043	NYSE	ERF	Thu, Dec 22, 2016	9.39	9.58	9.34	9.44
4042	NYSE	ERF	Wed, Dec 21, 2016	9.46	9.53	9.29	9.38
4041	NYSE	ERF	Tue, Dec 20, 2016	9.61	9.62	9.35	9.38
4040	NYSE	ERF	Mon, Dec 19, 2016	9.51	9.68	9.41	9.47
4039	NYSE	ERF	Fri, Dec 16, 2016	9.56	9.66	9.32	9.53
4038	NYSE	ERF	Thu, Dec 15, 2016	9.34	9.64	9.06	9.44
4037	NYSE	ERF	Wed, Dec 14, 2016	9.90	10.08	9.53	9.58
4036	NYSE	ERF	Tue, Dec 13, 2016	9.76	10.32	9.65	10.07
4035	NYSE	ERF	Mon, Dec 12, 2016	10.02	10.33	9.46	9.49
4034	NYSE	ERF	Fri, Dec 9, 2016	9.12	9.39	9.09	9.22
4033	NYSE	ERF	Thu, Dec 8, 2016	8.95	9.04	8.86	9.04
4032	NYSE	ERF	Wed, Dec 7, 2016	8.94	8.94	8.65	8.90
4031	NYSE	ERF	Tue, Dec 6, 2016	8.91	9.10	8.80	8.97
4030	NYSE	ERF	Mon, Dec 5, 2016	9.11	9.34	9.03	9.08
4029	NYSE	ERF	Fri, Dec 2, 2016	8.84	9.29	8.84	8.94
4028	NYSE	ERF	Thu, Dec 1, 2016	9.00	9.56	8.84	8.88
4027	NYSE	ERF	Wed, Nov 30, 2016	8.18	8.84	8.18	8.66
4026	NYSE	ERF	Tue, Nov 29, 2016	7.49	7.68	7.33	7.37
4025	NYSE	ERF	Mon, Nov 28, 2016	7.99	8.04	7.74	7.81
4024	NYSE	ERF	Fri, Nov 25, 2016	8.04	8.11	7.84	7.90
4023	NYSE	ERF	Wed, Nov 23, 2016	7.88	8.24	7.85	8.12
4022	NYSE	ERF	Tue, Nov 22, 2016	8.08	8.13	7.84	8.03
4021	NYSE	ERF	Mon, Nov 21, 2016	7.70	8.07	7.67	8.05
4020	NYSE	ERF	Fri, Nov 18, 2016	7.32	7.63	7.31	7.44
4019	NYSE	ERF	Thu, Nov 17, 2016	7.50	7.64	7.25	7.28
4018	NYSE	ERF	Wed, Nov 16, 2016	7.20	7.50	7.15	7.36
4017	NYSE	ERF	Tue, Nov 15, 2016	6.89	7.31	6.89	7.26
4016	NYSE	ERF	Mon, Nov 14, 2016	6.26	6.80	6.26	6.73
4015	NYSE	ERF	Fri, Nov 11, 2016	6.53	6.54	6.32	6.40
4014	NYSE	ERF	Thu, Nov 10, 2016	6.65	6.76	6.52	6.67
4013	NYSE	ERF	Wed, Nov 9, 2016	6.55	6.80	6.55	6.78
4012	NYSE	ERF	Tue, Nov 8, 2016	6.68	6.76	6.57	6.62
4011	NYSE	ERF	Mon, Nov 7, 2016	6.76	6.81	6.66	6.74
4010	NYSE	ERF	Fri, Nov 4, 2016	6.66	6.80	6.43	6.64
4009	NYSE	ERF	Thu, Nov 3, 2016	6.81	6.85	6.69	6.78
4008	NYSE	ERF	Wed, Nov 2, 2016	6.81	6.97	6.63	6.75
4007	NYSE	ERF	Tue, Nov 1, 2016	6.87	6.99	6.76	6.99
4006	NYSE	ERF	Mon, Oct 31, 2016	6.78	6.83	6.65	6.72
4005	NYSE	ERF	Fri, Oct 28, 2016	6.83	7.14	6.79	6.86
4004	NYSE	ERF	Thu, Oct 27, 2016	6.91	7.08	6.87	6.88
4003	NYSE	ERF	Wed, Oct 26, 2016	6.93	7.03	6.77	6.84
4002	NYSE	ERF	Tue, Oct 25, 2016	7.22	7.41	7.07	7.08
4001	NYSE	ERF	Mon, Oct 24, 2016	7.47	7.52	7.19	7.31
4000	NYSE	ERF	Fri, Oct 21, 2016	7.37	7.58	7.32	7.54
3999	NYSE	ERF	Thu, Oct 20, 2016	7.49	7.58	7.36	7.44
3998	NYSE	ERF	Wed, Oct 19, 2016	7.50	7.74	7.38	7.64
3997	NYSE	ERF	Tue, Oct 18, 2016	7.29	7.41	7.23	7.37
3996	NYSE	ERF	Mon, Oct 17, 2016	7.27	7.27	7.05	7.13
3995	NYSE	ERF	Fri, Oct 14, 2016	7.33	7.41	7.17	7.27
3994	NYSE	ERF	Thu, Oct 13, 2016	7.18	7.44	7.05	7.31
3993	NYSE	ERF	Wed, Oct 12, 2016	7.32	7.36	7.14	7.26
3992	NYSE	ERF	Tue, Oct 11, 2016	7.44	7.60	7.35	7.40
3991	NYSE	ERF	Mon, Oct 10, 2016	7.44	7.57	7.31	7.44
3990	NYSE	ERF	Fri, Oct 7, 2016	7.47	7.49	7.23	7.31
3989	NYSE	ERF	Thu, Oct 6, 2016	7.61	7.61	7.26	7.39
3988	NYSE	ERF	Wed, Oct 5, 2016	7.02	7.56	7.02	7.44
3987	NYSE	ERF	Tue, Oct 4, 2016	6.69	6.93	6.61	6.89
3986	NYSE	ERF	Mon, Oct 3, 2016	6.45	6.74	6.28	6.69
3985	NYSE	ERF	Fri, Sep 30, 2016	6.39	6.59	6.29	6.41
3984	NYSE	ERF	Thu, Sep 29, 2016	6.32	6.64	6.19	6.28
3983	NYSE	ERF	Wed, Sep 28, 2016	5.74	6.29	5.61	6.27
3982	NYSE	ERF	Tue, Sep 27, 2016	5.82	5.84	5.66	5.69
3981	NYSE	ERF	Mon, Sep 26, 2016	6.16	6.20	5.91	5.90
3980	NYSE	ERF	Fri, Sep 23, 2016	6.24	6.32	6.07	6.09
3979	NYSE	ERF	Thu, Sep 22, 2016	6.28	6.37	6.23	6.26
3978	NYSE	ERF	Wed, Sep 21, 2016	5.87	6.15	5.84	6.11
3977	NYSE	ERF	Tue, Sep 20, 2016	5.84	5.94	5.72	5.79
3976	NYSE	ERF	Mon, Sep 19, 2016	6.07	6.15	5.89	5.90
3975	NYSE	ERF	Fri, Sep 16, 2016	5.84	6.02	5.72	5.98
3974	NYSE	ERF	Thu, Sep 15, 2016	6.05	6.14	5.98	6.01
3973	NYSE	ERF	Wed, Sep 14, 2016	6.09	6.28	6.00	6.01
3972	NYSE	ERF	Tue, Sep 13, 2016	6.45	6.47	6.09	6.14
3971	NYSE	ERF	Mon, Sep 12, 2016	6.59	6.73	6.46	6.63
3970	NYSE	ERF	Fri, Sep 9, 2016	6.98	7.02	6.71	6.72
3969	NYSE	ERF	Thu, Sep 8, 2016	7.13	7.29	7.03	7.16
3968	NYSE	ERF	Wed, Sep 7, 2016	7.21	7.36	6.97	7.00
3967	NYSE	ERF	Tue, Sep 6, 2016	7.09	7.27	7.06	7.20
3966	NYSE	ERF	Fri, Sep 2, 2016	7.08	7.19	7.05	7.07
3965	NYSE	ERF	Thu, Sep 1, 2016	6.91	6.93	6.69	6.92
3964	NYSE	ERF	Wed, Aug 31, 2016	6.99	7.06	6.87	6.96
3963	NYSE	ERF	Tue, Aug 30, 2016	7.13	7.25	6.97	7.02
3962	NYSE	ERF	Mon, Aug 29, 2016	7.02	7.23	7.01	7.12
3961	NYSE	ERF	Fri, Aug 26, 2016	7.30	7.49	7.14	7.17
3960	NYSE	ERF	Thu, Aug 25, 2016	7.26	7.42	7.19	7.27
3959	NYSE	ERF	Wed, Aug 24, 2016	7.41	7.56	7.22	7.25
3958	NYSE	ERF	Tue, Aug 23, 2016	7.35	7.58	7.35	7.49
3957	NYSE	ERF	Mon, Aug 22, 2016	7.52	7.57	7.34	7.42
3956	NYSE	ERF	Fri, Aug 19, 2016	7.68	7.82	7.62	7.67
3955	NYSE	ERF	Thu, Aug 18, 2016	7.51	7.82	7.49	7.82
3954	NYSE	ERF	Wed, Aug 17, 2016	7.38	7.46	7.19	7.43
3953	NYSE	ERF	Tue, Aug 16, 2016	7.26	7.41	7.13	7.39
3952	NYSE	ERF	Mon, Aug 15, 2016	6.97	7.29	6.94	7.25
3951	NYSE	ERF	Fri, Aug 12, 2016	6.91	6.98	6.78	6.89
3950	NYSE	ERF	Thu, Aug 11, 2016	6.70	6.91	6.61	6.83
3949	NYSE	ERF	Wed, Aug 10, 2016	6.74	6.79	6.58	6.62
3948	NYSE	ERF	Tue, Aug 9, 2016	6.84	6.95	6.67	6.69
3947	NYSE	ERF	Mon, Aug 8, 2016	6.65	6.97	6.62	6.78
3946	NYSE	ERF	Fri, Aug 5, 2016	6.18	6.59	6.08	6.49
3945	NYSE	ERF	Thu, Aug 4, 2016	6.05	6.32	5.98	6.28
3944	NYSE	ERF	Wed, Aug 3, 2016	5.85	6.15	5.81	6.12
3943	NYSE	ERF	Tue, Aug 2, 2016	5.84	6.00	5.74	5.86
3942	NYSE	ERF	Mon, Aug 1, 2016	5.84	5.84	5.62	5.65
3941	NYSE	ERF	Fri, Jul 29, 2016	5.69	5.98	5.68	5.97
3940	NYSE	ERF	Thu, Jul 28, 2016	5.73	5.88	5.67	5.76
3939	NYSE	ERF	Wed, Jul 27, 2016	6.00	6.21	5.76	5.80
3938	NYSE	ERF	Tue, Jul 26, 2016	5.95	6.02	5.82	5.99
3937	NYSE	ERF	Mon, Jul 25, 2016	6.27	6.30	6.01	6.02
3936	NYSE	ERF	Fri, Jul 22, 2016	6.47	6.51	6.32	6.38
3935	NYSE	ERF	Thu, Jul 21, 2016	6.51	6.74	6.44	6.45
3934	NYSE	ERF	Wed, Jul 20, 2016	6.33	6.59	6.25	6.53
3933	NYSE	ERF	Tue, Jul 19, 2016	6.48	6.59	6.41	6.46
3932	NYSE	ERF	Mon, Jul 18, 2016	6.39	6.53	6.33	6.50
3931	NYSE	ERF	Fri, Jul 15, 2016	6.54	6.60	6.38	6.46
3930	NYSE	ERF	Thu, Jul 14, 2016	6.57	6.62	6.48	6.50
3929	NYSE	ERF	Wed, Jul 13, 2016	6.60	6.65	6.32	6.47
3928	NYSE	ERF	Tue, Jul 12, 2016	6.46	6.72	6.42	6.63
3927	NYSE	ERF	Mon, Jul 11, 2016	6.34	6.45	6.25	6.26
3926	NYSE	ERF	Fri, Jul 8, 2016	6.38	6.38	6.12	6.28
3925	NYSE	ERF	Thu, Jul 7, 2016	6.53	6.67	6.22	6.27
3924	NYSE	ERF	Wed, Jul 6, 2016	6.15	6.51	6.12	6.49
3923	NYSE	ERF	Tue, Jul 5, 2016	6.39	6.47	6.13	6.24
3922	NYSE	ERF	Fri, Jul 1, 2016	6.59	6.70	6.51	6.58
3921	NYSE	ERF	Thu, Jun 30, 2016	6.65	6.69	6.52	6.57
3920	NYSE	ERF	Wed, Jun 29, 2016	6.39	6.73	6.33	6.68
3919	NYSE	ERF	Tue, Jun 28, 2016	6.13	6.34	6.10	6.31
3918	NYSE	ERF	Mon, Jun 27, 2016	6.00	6.16	5.76	5.90
3917	NYSE	ERF	Fri, Jun 24, 2016	6.00	6.28	5.92	6.09
3916	NYSE	ERF	Thu, Jun 23, 2016	6.57	6.59	6.41	6.52
3915	NYSE	ERF	Wed, Jun 22, 2016	6.60	6.65	6.36	6.43
3914	NYSE	ERF	Tue, Jun 21, 2016	6.38	6.57	6.29	6.51
3913	NYSE	ERF	Mon, Jun 20, 2016	6.40	6.54	6.33	6.45
3912	NYSE	ERF	Fri, Jun 17, 2016	6.00	6.32	5.93	6.22
3911	NYSE	ERF	Thu, Jun 16, 2016	5.79	5.92	5.59	5.79
3910	NYSE	ERF	Wed, Jun 15, 2016	5.82	6.07	5.71	5.91
3909	NYSE	ERF	Tue, Jun 14, 2016	5.85	5.97	5.66	5.85
3908	NYSE	ERF	Mon, Jun 13, 2016	5.86	6.15	5.78	5.90
3907	NYSE	ERF	Fri, Jun 10, 2016	6.18	6.29	5.90	5.96
3906	NYSE	ERF	Thu, Jun 9, 2016	6.30	6.44	6.22	6.34
3905	NYSE	ERF	Wed, Jun 8, 2016	6.74	6.94	6.41	6.44
3904	NYSE	ERF	Tue, Jun 7, 2016	6.52	6.75	6.45	6.61
3903	NYSE	ERF	Mon, Jun 6, 2016	6.14	6.51	6.10	6.40
3902	NYSE	ERF	Fri, Jun 3, 2016	5.87	6.01	5.79	5.97
3901	NYSE	ERF	Thu, Jun 2, 2016	5.41	5.82	5.41	5.79
3900	NYSE	ERF	Wed, Jun 1, 2016	5.29	5.55	5.27	5.49
3899	NYSE	ERF	Tue, May 31, 2016	5.19	5.48	5.19	5.44
3898	NYSE	ERF	Fri, May 27, 2016	5.20	5.26	5.11	5.14
3897	NYSE	ERF	Thu, May 26, 2016	5.31	5.36	5.10	5.27
3896	NYSE	ERF	Wed, May 25, 2016	5.02	5.26	5.02	5.23
3895	NYSE	ERF	Tue, May 24, 2016	5.07	5.15	4.90	4.96
3894	NYSE	ERF	Mon, May 23, 2016	4.94	5.08	4.87	5.05
3893	NYSE	ERF	Fri, May 20, 2016	4.97	5.20	4.97	5.05
3892	NYSE	ERF	Thu, May 19, 2016	4.82	4.98	4.69	4.92
3891	NYSE	ERF	Wed, May 18, 2016	5.26	5.28	4.89	4.95
3890	NYSE	ERF	Tue, May 17, 2016	5.32	5.37	5.23	5.30
3889	NYSE	ERF	Mon, May 16, 2016	5.26	5.34	5.16	5.32
3888	NYSE	ERF	Fri, May 13, 2016	5.17	5.31	5.10	5.11
3887	NYSE	ERF	Thu, May 12, 2016	5.40	5.40	5.15	5.24
3886	NYSE	ERF	Wed, May 11, 2016	5.34	5.40	5.23	5.30
3885	NYSE	ERF	Tue, May 10, 2016	5.31	5.74	5.31	5.70
3884	NYSE	ERF	Mon, May 9, 2016	5.07	5.39	4.97	5.26
3883	NYSE	ERF	Fri, May 6, 2016	4.72	5.36	4.72	5.08
3882	NYSE	ERF	Thu, May 5, 2016	5.08	5.13	4.79	4.95
3881	NYSE	ERF	Wed, May 4, 2016	4.94	5.08	4.71	4.86
3880	NYSE	ERF	Tue, May 3, 2016	5.13	5.18	4.77	4.91
3879	NYSE	ERF	Mon, May 2, 2016	5.50	5.55	5.21	5.31
3878	NYSE	ERF	Fri, Apr 29, 2016	5.54	5.70	5.34	5.50
3877	NYSE	ERF	Thu, Apr 28, 2016	5.55	5.69	5.37	5.45
3876	NYSE	ERF	Wed, Apr 27, 2016	5.42	5.62	5.31	5.56
3875	NYSE	ERF	Tue, Apr 26, 2016	5.25	5.40	5.17	5.27
3874	NYSE	ERF	Mon, Apr 25, 2016	5.43	5.47	5.09	5.18
3873	NYSE	ERF	Fri, Apr 22, 2016	5.17	5.50	5.17	5.45
3872	NYSE	ERF	Thu, Apr 21, 2016	5.21	5.31	5.05	5.14
3871	NYSE	ERF	Wed, Apr 20, 2016	5.13	5.31	5.03	5.18
3870	NYSE	ERF	Tue, Apr 19, 2016	5.02	5.28	4.97	5.27
3869	NYSE	ERF	Mon, Apr 18, 2016	4.39	4.98	4.34	4.89
3868	NYSE	ERF	Fri, Apr 15, 2016	4.64	4.71	4.52	4.59
3867	NYSE	ERF	Thu, Apr 14, 2016	4.87	4.93	4.74	4.83
3866	NYSE	ERF	Wed, Apr 13, 2016	4.82	5.00	4.71	4.85
3865	NYSE	ERF	Tue, Apr 12, 2016	4.41	4.88	4.40	4.81
3864	NYSE	ERF	Mon, Apr 11, 2016	4.28	4.46	4.25	4.34
3863	NYSE	ERF	Fri, Apr 8, 2016	4.05	4.27	4.04	4.20
3862	NYSE	ERF	Thu, Apr 7, 2016	3.88	3.98	3.80	3.90
3861	NYSE	ERF	Wed, Apr 6, 2016	3.68	3.97	3.61	3.92
3860	NYSE	ERF	Tue, Apr 5, 2016	3.70	3.70	3.70	3.57
3859	NYSE	ERF	Mon, Apr 4, 2016	3.86	3.87	3.66	3.70
3858	NYSE	ERF	Fri, Apr 1, 2016	3.73	3.93	3.72	3.87
3857	NYSE	ERF	Thu, Mar 31, 2016	3.81	3.94	3.81	3.93
3856	NYSE	ERF	Wed, Mar 30, 2016	3.82	3.99	3.78	3.83
3855	NYSE	ERF	Tue, Mar 29, 2016	3.50	3.75	3.46	3.73
3854	NYSE	ERF	Mon, Mar 28, 2016	3.73	3.74	3.56	3.64
3853	NYSE	ERF	Thu, Mar 24, 2016	3.51	3.74	3.40	3.72
3852	NYSE	ERF	Wed, Mar 23, 2016	3.63	3.70	3.54	3.56
3851	NYSE	ERF	Tue, Mar 22, 2016	3.62	3.72	3.61	3.71
3850	NYSE	ERF	Mon, Mar 21, 2016	3.74	3.87	3.61	3.70
3849	NYSE	ERF	Fri, Mar 18, 2016	3.94	4.03	3.67	3.69
3848	NYSE	ERF	Thu, Mar 17, 2016	3.87	3.91	3.73	3.88
3847	NYSE	ERF	Wed, Mar 16, 2016	3.49	3.70	3.48	3.70
3846	NYSE	ERF	Tue, Mar 15, 2016	3.50	3.50	3.50	3.45
3845	NYSE	ERF	Mon, Mar 14, 2016	3.48	3.55	3.39	3.50
3844	NYSE	ERF	Fri, Mar 11, 2016	3.52	3.52	3.52	3.62
3843	NYSE	ERF	Thu, Mar 10, 2016	3.59	3.59	3.39	3.52
3842	NYSE	ERF	Wed, Mar 9, 2016	3.54	3.74	3.54	3.60
3841	NYSE	ERF	Tue, Mar 8, 2016	3.84	3.88	3.49	3.53
3840	NYSE	ERF	Mon, Mar 7, 2016	3.89	4.03	3.82	3.91
3839	NYSE	ERF	Fri, Mar 4, 2016	3.54	3.54	3.54	3.78
3838	NYSE	ERF	Thu, Mar 3, 2016	3.28	3.28	3.28	3.54
3837	NYSE	ERF	Wed, Mar 2, 2016	2.97	3.29	2.96	3.28
3836	NYSE	ERF	Tue, Mar 1, 2016	2.89	2.89	2.89	3.05
3835	NYSE	ERF	Mon, Feb 29, 2016	2.82	2.96	2.81	2.89
3834	NYSE	ERF	Fri, Feb 26, 2016	2.82	2.89	2.77	2.79
3833	NYSE	ERF	Thu, Feb 25, 2016	2.72	2.80	2.53	2.70
3832	NYSE	ERF	Wed, Feb 24, 2016	2.55	2.78	2.43	2.78
3831	NYSE	ERF	Tue, Feb 23, 2016	2.86	2.88	2.62	2.63
3830	NYSE	ERF	Mon, Feb 22, 2016	3.09	3.14	2.87	2.92
3829	NYSE	ERF	Fri, Feb 19, 2016	2.83	3.05	2.73	2.95
3828	NYSE	ERF	Thu, Feb 18, 2016	3.26	3.32	2.99	3.00
3827	NYSE	ERF	Wed, Feb 17, 2016	2.95	3.25	2.91	3.21
3826	NYSE	ERF	Tue, Feb 16, 2016	2.93	2.99	2.80	2.89
3825	NYSE	ERF	Fri, Feb 12, 2016	2.78	2.94	2.75	2.88
3824	NYSE	ERF	Thu, Feb 11, 2016	2.69	2.76	2.54	2.69
3823	NYSE	ERF	Wed, Feb 10, 2016	2.88	2.95	2.76	2.76
3822	NYSE	ERF	Tue, Feb 9, 2016	3.00	3.05	2.83	2.85
3821	NYSE	ERF	Mon, Feb 8, 2016	3.10	3.22	3.02	3.04
3820	NYSE	ERF	Fri, Feb 5, 2016	3.12	3.29	3.07	3.19
3819	NYSE	ERF	Thu, Feb 4, 2016	3.16	3.35	3.12	3.21
3818	NYSE	ERF	Wed, Feb 3, 2016	2.91	3.16	2.67	3.14
3817	NYSE	ERF	Tue, Feb 2, 2016	2.97	2.97	2.79	2.80
3816	NYSE	ERF	Mon, Feb 1, 2016	3.04	3.11	2.95	3.08
3815	NYSE	ERF	Fri, Jan 29, 2016	3.17	3.29	3.06	3.17
3814	NYSE	ERF	Thu, Jan 28, 2016	3.06	3.15	2.91	3.15
3813	NYSE	ERF	Wed, Jan 27, 2016	2.72	2.98	2.70	2.83
3812	NYSE	ERF	Tue, Jan 26, 2016	2.58	2.76	2.51	2.76
3811	NYSE	ERF	Mon, Jan 25, 2016	2.61	2.81	2.45	2.45
3810	NYSE	ERF	Fri, Jan 22, 2016	2.59	2.80	2.57	2.67
3809	NYSE	ERF	Thu, Jan 21, 2016	2.17	2.57	2.10	2.39
3808	NYSE	ERF	Wed, Jan 20, 2016	2.04	2.24	1.84	2.20
3807	NYSE	ERF	Tue, Jan 19, 2016	2.29	2.39	2.13	2.16
3806	NYSE	ERF	Fri, Jan 15, 2016	2.24	2.36	2.19	2.30
3805	NYSE	ERF	Thu, Jan 14, 2016	2.32	2.46	2.17	2.44
3804	NYSE	ERF	Wed, Jan 13, 2016	2.50	2.55	2.24	2.29
3803	NYSE	ERF	Tue, Jan 12, 2016	2.64	2.69	2.29	2.40
3802	NYSE	ERF	Mon, Jan 11, 2016	2.72	2.76	2.44	2.45
3801	NYSE	ERF	Fri, Jan 8, 2016	2.83	2.84	2.63	2.78
3800	NYSE	ERF	Thu, Jan 7, 2016	2.90	2.99	2.81	2.83
3799	NYSE	ERF	Wed, Jan 6, 2016	3.14	3.16	2.97	3.01
3798	NYSE	ERF	Tue, Jan 5, 2016	3.50	3.50	3.22	3.25
3797	NYSE	ERF	Mon, Jan 4, 2016	3.47	3.66	3.38	3.53
3796	NYSE	ERF	Thu, Dec 31, 2015	3.28	3.46	3.27	3.42
3795	NYSE	ERF	Wed, Dec 30, 2015	3.38	3.50	3.31	3.31
3794	NYSE	ERF	Tue, Dec 29, 2015	3.48	3.59	3.38	3.48
3793	NYSE	ERF	Mon, Dec 28, 2015	3.41	3.46	3.36	3.37
3792	NYSE	ERF	Thu, Dec 24, 2015	3.61	3.72	3.51	3.56
3791	NYSE	ERF	Wed, Dec 23, 2015	3.17	3.61	3.15	3.60
3790	NYSE	ERF	Tue, Dec 22, 2015	3.11	3.22	3.06	3.06
3789	NYSE	ERF	Mon, Dec 21, 2015	3.20	3.24	3.04	3.14
3788	NYSE	ERF	Fri, Dec 18, 2015	3.09	3.30	3.01	3.25
3787	NYSE	ERF	Thu, Dec 17, 2015	3.19	3.20	3.04	3.05
3786	NYSE	ERF	Wed, Dec 16, 2015	3.36	3.44	3.20	3.20
3785	NYSE	ERF	Tue, Dec 15, 2015	3.41	3.47	3.34	3.40
3784	NYSE	ERF	Mon, Dec 14, 2015	3.57	3.59	3.34	3.36
3783	NYSE	ERF	Fri, Dec 11, 2015	3.81	3.85	3.62	3.62
3782	NYSE	ERF	Thu, Dec 10, 2015	3.87	4.05	3.82	3.92
3781	NYSE	ERF	Wed, Dec 9, 2015	3.92	4.23	3.86	3.93
3780	NYSE	ERF	Tue, Dec 8, 2015	3.95	4.22	3.91	3.99
3779	NYSE	ERF	Mon, Dec 7, 2015	4.45	4.45	4.06	4.06
3778	NYSE	ERF	Fri, Dec 4, 2015	4.75	4.80	4.56	4.60
3777	NYSE	ERF	Thu, Dec 3, 2015	4.91	4.99	4.77	4.85
3776	NYSE	ERF	Wed, Dec 2, 2015	5.01	5.08	4.82	4.83
3775	NYSE	ERF	Tue, Dec 1, 2015	4.93	5.19	4.90	5.12
3774	NYSE	ERF	Mon, Nov 30, 2015	5.05	5.18	4.92	4.95
3773	NYSE	ERF	Fri, Nov 27, 2015	5.10	5.21	4.98	5.03
3772	NYSE	ERF	Wed, Nov 25, 2015	5.12	5.30	4.97	5.16
3771	NYSE	ERF	Tue, Nov 24, 2015	4.98	5.32	4.97	5.24
3770	NYSE	ERF	Mon, Nov 23, 2015	4.96	5.08	4.86	4.93
3769	NYSE	ERF	Fri, Nov 20, 2015	5.13	5.24	4.94	5.01
3768	NYSE	ERF	Thu, Nov 19, 2015	5.25	5.33	5.05	5.12
3767	NYSE	ERF	Wed, Nov 18, 2015	5.39	5.54	5.21	5.36
3766	NYSE	ERF	Tue, Nov 17, 2015	5.52	5.52	5.17	5.31
3765	NYSE	ERF	Mon, Nov 16, 2015	5.23	5.60	5.17	5.59
3764	NYSE	ERF	Fri, Nov 13, 2015	4.87	5.36	4.86	5.26
3763	NYSE	ERF	Thu, Nov 12, 2015	5.09	5.13	4.87	4.91
3762	NYSE	ERF	Wed, Nov 11, 2015	5.40	5.43	5.13	5.18
3761	NYSE	ERF	Tue, Nov 10, 2015	5.42	5.60	5.31	5.41
3760	NYSE	ERF	Mon, Nov 9, 2015	5.54	5.72	5.38	5.41
3759	NYSE	ERF	Fri, Nov 6, 2015	4.98	5.57	4.79	5.40
3758	NYSE	ERF	Thu, Nov 5, 2015	5.18	5.38	5.10	5.16
3757	NYSE	ERF	Wed, Nov 4, 2015	5.30	5.51	5.12	5.26
3756	NYSE	ERF	Tue, Nov 3, 2015	5.02	5.40	5.00	5.33
3755	NYSE	ERF	Mon, Nov 2, 2015	4.66	4.95	4.61	4.92
3754	NYSE	ERF	Fri, Oct 30, 2015	4.64	4.74	4.50	4.71
3753	NYSE	ERF	Thu, Oct 29, 2015	4.70	4.95	4.60	4.62
3752	NYSE	ERF	Wed, Oct 28, 2015	4.57	4.98	4.49	4.72
3751	NYSE	ERF	Tue, Oct 27, 2015	4.66	4.68	4.46	4.54
3750	NYSE	ERF	Mon, Oct 26, 2015	5.00	5.03	4.75	4.75
3749	NYSE	ERF	Fri, Oct 23, 2015	5.17	5.17	4.98	5.02
3748	NYSE	ERF	Thu, Oct 22, 2015	5.24	5.26	5.13	5.22
3747	NYSE	ERF	Wed, Oct 21, 2015	5.36	5.41	5.13	5.13
3746	NYSE	ERF	Tue, Oct 20, 2015	5.34	5.59	5.31	5.50
3745	NYSE	ERF	Mon, Oct 19, 2015	5.78	5.79	5.33	5.34
3744	NYSE	ERF	Fri, Oct 16, 2015	6.03	6.19	5.82	5.89
3743	NYSE	ERF	Thu, Oct 15, 2015	5.86	6.05	5.76	5.99
3742	NYSE	ERF	Wed, Oct 14, 2015	5.85	5.99	5.79	5.94
3741	NYSE	ERF	Tue, Oct 13, 2015	6.09	6.27	5.85	5.86
3740	NYSE	ERF	Mon, Oct 12, 2015	6.31	6.35	6.06	6.14
3739	NYSE	ERF	Fri, Oct 9, 2015	6.51	6.51	6.13	6.31
3738	NYSE	ERF	Thu, Oct 8, 2015	6.27	6.49	6.13	6.41
3737	NYSE	ERF	Wed, Oct 7, 2015	6.23	6.49	5.86	6.25
3736	NYSE	ERF	Tue, Oct 6, 2015	5.47	6.13	5.45	6.09
3735	NYSE	ERF	Mon, Oct 5, 2015	5.15	5.51	5.14	5.44
3734	NYSE	ERF	Fri, Oct 2, 2015	4.67	5.03	4.60	5.00
3733	NYSE	ERF	Thu, Oct 1, 2015	5.01	5.20	4.68	4.73
3732	NYSE	ERF	Wed, Sep 30, 2015	4.74	4.86	4.64	4.86
3731	NYSE	ERF	Tue, Sep 29, 2015	4.78	4.86	4.63	4.74
3730	NYSE	ERF	Mon, Sep 28, 2015	4.75	4.87	4.71	4.72
3729	NYSE	ERF	Fri, Sep 25, 2015	5.19	5.25	4.83	4.89
3728	NYSE	ERF	Thu, Sep 24, 2015	5.23	5.27	5.02	5.11
3727	NYSE	ERF	Wed, Sep 23, 2015	5.66	5.74	5.29	5.31
3726	NYSE	ERF	Tue, Sep 22, 2015	5.77	5.92	5.62	5.63
3725	NYSE	ERF	Mon, Sep 21, 2015	5.91	6.06	5.80	5.93
3724	NYSE	ERF	Fri, Sep 18, 2015	5.98	6.07	5.75	5.77
3723	NYSE	ERF	Thu, Sep 17, 2015	5.98	6.39	5.87	6.09
3722	NYSE	ERF	Wed, Sep 16, 2015	5.62	6.02	5.54	6.02
3721	NYSE	ERF	Tue, Sep 15, 2015	5.44	5.74	5.38	5.45
3720	NYSE	ERF	Mon, Sep 14, 2015	5.39	5.53	5.35	5.45
3719	NYSE	ERF	Fri, Sep 11, 2015	5.62	5.72	5.43	5.49
3718	NYSE	ERF	Thu, Sep 10, 2015	5.67	5.88	5.51	5.75
3717	NYSE	ERF	Wed, Sep 9, 2015	6.00	6.21	5.70	5.70
3716	NYSE	ERF	Tue, Sep 8, 2015	5.99	6.11	5.71	5.99
3715	NYSE	ERF	Fri, Sep 4, 2015	5.85	6.00	5.74	5.86
3714	NYSE	ERF	Thu, Sep 3, 2015	6.03	6.31	5.89	5.95
3713	NYSE	ERF	Wed, Sep 2, 2015	6.02	6.14	5.65	6.01
3712	NYSE	ERF	Tue, Sep 1, 2015	6.05	6.31	5.82	5.98
3711	NYSE	ERF	Mon, Aug 31, 2015	5.86	6.44	5.57	6.34
3710	NYSE	ERF	Fri, Aug 28, 2015	5.54	6.10	5.54	5.97
3709	NYSE	ERF	Thu, Aug 27, 2015	5.17	5.65	5.00	5.65
3708	NYSE	ERF	Wed, Aug 26, 2015	4.78	4.99	4.67	4.97
3707	NYSE	ERF	Tue, Aug 25, 2015	5.07	5.15	4.67	4.70
3706	NYSE	ERF	Mon, Aug 24, 2015	4.71	5.16	4.54	4.70
3705	NYSE	ERF	Fri, Aug 21, 2015	5.54	5.58	5.19	5.27
3704	NYSE	ERF	Thu, Aug 20, 2015	5.70	5.83	5.57	5.62
3703	NYSE	ERF	Wed, Aug 19, 2015	6.06	6.10	5.60	5.67
3702	NYSE	ERF	Tue, Aug 18, 2015	6.16	6.19	5.96	6.16
3701	NYSE	ERF	Mon, Aug 17, 2015	6.20	6.32	6.14	6.16
3700	NYSE	ERF	Fri, Aug 14, 2015	6.46	6.68	6.25	6.33
3699	NYSE	ERF	Thu, Aug 13, 2015	6.77	6.77	6.26	6.39
3698	NYSE	ERF	Wed, Aug 12, 2015	6.72	7.02	6.63	6.89
3697	NYSE	ERF	Tue, Aug 11, 2015	6.72	6.84	6.42	6.67
3696	NYSE	ERF	Mon, Aug 10, 2015	6.31	7.00	6.19	6.98
3695	NYSE	ERF	Fri, Aug 7, 2015	6.24	6.47	6.03	6.10
3694	NYSE	ERF	Thu, Aug 6, 2015	5.81	6.09	5.69	6.09
3693	NYSE	ERF	Wed, Aug 5, 2015	6.14	6.29	5.90	5.90
3692	NYSE	ERF	Tue, Aug 4, 2015	6.06	6.26	6.00	6.02
3691	NYSE	ERF	Mon, Aug 3, 2015	6.13	6.27	6.03	6.03
3690	NYSE	ERF	Fri, Jul 31, 2015	6.39	6.42	6.03	6.23
3689	NYSE	ERF	Thu, Jul 30, 2015	6.52	6.64	6.28	6.40
3688	NYSE	ERF	Wed, Jul 29, 2015	6.27	6.62	6.17	6.56
3687	NYSE	ERF	Tue, Jul 28, 2015	6.09	6.42	6.05	6.30
3686	NYSE	ERF	Mon, Jul 27, 2015	6.66	6.66	6.06	6.09
3685	NYSE	ERF	Fri, Jul 24, 2015	6.98	6.99	6.70	6.79
3684	NYSE	ERF	Thu, Jul 23, 2015	7.15	7.28	6.79	6.99
3683	NYSE	ERF	Wed, Jul 22, 2015	7.36	7.37	7.09	7.13
3682	NYSE	ERF	Tue, Jul 21, 2015	7.34	7.62	7.31	7.47
3681	NYSE	ERF	Mon, Jul 20, 2015	7.62	7.64	7.24	7.27
3680	NYSE	ERF	Fri, Jul 17, 2015	7.90	7.90	7.62	7.62
3679	NYSE	ERF	Thu, Jul 16, 2015	8.08	8.13	7.91	7.93
3678	NYSE	ERF	Wed, Jul 15, 2015	8.22	8.31	7.92	7.99
3677	NYSE	ERF	Tue, Jul 14, 2015	8.07	8.35	8.06	8.30
3676	NYSE	ERF	Mon, Jul 13, 2015	8.11	8.18	7.94	8.10
3675	NYSE	ERF	Fri, Jul 10, 2015	8.18	8.27	7.98	8.15
3674	NYSE	ERF	Thu, Jul 9, 2015	8.15	8.36	7.93	8.13
3673	NYSE	ERF	Wed, Jul 8, 2015	8.06	8.30	7.83	7.95
3672	NYSE	ERF	Tue, Jul 7, 2015	8.03	8.27	7.69	8.24
3671	NYSE	ERF	Mon, Jul 6, 2015	8.25	8.33	8.05	8.05
3670	NYSE	ERF	Thu, Jul 2, 2015	8.45	8.69	8.34	8.61
3669	NYSE	ERF	Wed, Jul 1, 2015	8.76	8.80	8.33	8.36
3668	NYSE	ERF	Tue, Jun 30, 2015	8.66	8.82	8.59	8.79
3667	NYSE	ERF	Mon, Jun 29, 2015	8.82	8.95	8.56	8.56
3666	NYSE	ERF	Fri, Jun 26, 2015	9.12	9.12	8.91	9.04
3665	NYSE	ERF	Thu, Jun 25, 2015	9.39	9.44	9.16	9.18
3664	NYSE	ERF	Wed, Jun 24, 2015	9.58	9.77	9.37	9.37
3663	NYSE	ERF	Tue, Jun 23, 2015	9.41	9.65	9.32	9.61
3662	NYSE	ERF	Mon, Jun 22, 2015	9.37	9.54	9.22	9.41
3661	NYSE	ERF	Fri, Jun 19, 2015	9.45	9.59	9.25	9.40
3660	NYSE	ERF	Thu, Jun 18, 2015	9.72	9.75	9.53	9.53
3659	NYSE	ERF	Wed, Jun 17, 2015	9.66	9.80	9.46	9.61
3658	NYSE	ERF	Tue, Jun 16, 2015	9.46	9.53	9.39	9.51
3657	NYSE	ERF	Mon, Jun 15, 2015	9.48	9.54	9.26	9.46
3656	NYSE	ERF	Fri, Jun 12, 2015	9.73	9.88	9.54	9.58
3655	NYSE	ERF	Thu, Jun 11, 2015	9.85	10.50	9.79	9.82
3654	NYSE	ERF	Wed, Jun 10, 2015	9.28	9.79	9.20	9.68
3653	NYSE	ERF	Tue, Jun 9, 2015	9.11	9.29	8.97	8.98
3652	NYSE	ERF	Mon, Jun 8, 2015	9.15	9.26	8.86	8.92
3651	NYSE	ERF	Fri, Jun 5, 2015	9.19	9.39	9.03	9.18
3650	NYSE	ERF	Thu, Jun 4, 2015	9.42	9.44	9.21	9.21
3649	NYSE	ERF	Wed, Jun 3, 2015	9.68	9.69	9.51	9.53
3648	NYSE	ERF	Tue, Jun 2, 2015	9.52	9.94	9.48	9.76
3647	NYSE	ERF	Mon, Jun 1, 2015	9.63	9.67	9.32	9.45
3646	NYSE	ERF	Fri, May 29, 2015	9.47	9.68	9.44	9.63
3645	NYSE	ERF	Thu, May 28, 2015	9.73	9.73	9.35	9.48
3644	NYSE	ERF	Wed, May 27, 2015	9.75	9.92	9.59	9.65
3643	NYSE	ERF	Tue, May 26, 2015	10.01	10.15	9.77	9.80
3642	NYSE	ERF	Fri, May 22, 2015	10.02	10.28	9.91	10.21
3641	NYSE	ERF	Thu, May 21, 2015	10.09	10.25	9.93	10.16
3640	NYSE	ERF	Wed, May 20, 2015	9.96	10.06	9.82	10.00
3639	NYSE	ERF	Tue, May 19, 2015	10.30	10.32	9.80	9.90
3638	NYSE	ERF	Mon, May 18, 2015	10.69	10.69	10.30	10.46
3637	NYSE	ERF	Fri, May 15, 2015	10.43	10.86	10.29	10.72
3636	NYSE	ERF	Thu, May 14, 2015	10.99	11.04	10.56	10.56
3635	NYSE	ERF	Wed, May 13, 2015	11.13	11.17	10.83	10.92
3634	NYSE	ERF	Tue, May 12, 2015	11.15	11.17	10.91	10.99
3633	NYSE	ERF	Mon, May 11, 2015	11.36	11.45	10.91	11.02
3632	NYSE	ERF	Fri, May 8, 2015	11.39	11.53	10.95	11.41
3631	NYSE	ERF	Thu, May 7, 2015	11.80	11.81	11.30	11.40
3630	NYSE	ERF	Wed, May 6, 2015	12.37	12.38	11.78	11.84
3629	NYSE	ERF	Tue, May 5, 2015	12.51	12.67	12.07	12.14
3628	NYSE	ERF	Mon, May 4, 2015	12.48	12.60	12.16	12.27
3627	NYSE	ERF	Fri, May 1, 2015	12.56	12.64	12.26	12.45
3626	NYSE	ERF	Thu, Apr 30, 2015	12.59	12.73	12.18	12.61
3625	NYSE	ERF	Wed, Apr 29, 2015	12.13	12.72	12.08	12.53
3624	NYSE	ERF	Tue, Apr 28, 2015	12.37	12.50	12.00	12.13
3623	NYSE	ERF	Mon, Apr 27, 2015	12.55	12.68	12.29	12.39
3622	NYSE	ERF	Fri, Apr 24, 2015	12.71	12.87	12.38	12.44
3621	NYSE	ERF	Thu, Apr 23, 2015	12.45	12.91	12.45	12.75
3620	NYSE	ERF	Wed, Apr 22, 2015	12.54	12.64	12.30	12.37
3619	NYSE	ERF	Tue, Apr 21, 2015	12.92	12.99	12.33	12.48
3618	NYSE	ERF	Mon, Apr 20, 2015	12.71	13.16	12.71	12.88
3617	NYSE	ERF	Fri, Apr 17, 2015	12.58	12.95	12.52	12.72
3616	NYSE	ERF	Thu, Apr 16, 2015	12.58	12.89	12.27	12.71
3615	NYSE	ERF	Wed, Apr 15, 2015	11.86	12.74	11.80	12.66
3614	NYSE	ERF	Tue, Apr 14, 2015	11.70	12.13	11.62	11.74
3613	NYSE	ERF	Mon, Apr 13, 2015	11.61	11.85	11.42	11.43
3612	NYSE	ERF	Fri, Apr 10, 2015	11.32	11.71	11.32	11.58
3611	NYSE	ERF	Thu, Apr 9, 2015	11.05	11.36	11.01	11.24
3610	NYSE	ERF	Wed, Apr 8, 2015	11.35	11.46	10.82	10.89
3609	NYSE	ERF	Tue, Apr 7, 2015	10.98	11.63	10.96	11.42
3608	NYSE	ERF	Mon, Apr 6, 2015	10.79	11.25	10.79	11.20
3607	NYSE	ERF	Thu, Apr 2, 2015	10.33	10.75	10.30	10.71
3606	NYSE	ERF	Wed, Apr 1, 2015	10.21	10.62	10.21	10.44
3605	NYSE	ERF	Tue, Mar 31, 2015	10.04	10.34	9.83	10.14
3604	NYSE	ERF	Mon, Mar 30, 2015	10.10	10.25	10.00	10.21
3603	NYSE	ERF	Fri, Mar 27, 2015	10.36	10.42	10.07	10.09
3602	NYSE	ERF	Thu, Mar 26, 2015	10.70	10.77	10.22	10.53
3601	NYSE	ERF	Wed, Mar 25, 2015	10.29	10.54	10.03	10.38
3600	NYSE	ERF	Tue, Mar 24, 2015	9.94	10.23	9.89	10.23
3599	NYSE	ERF	Mon, Mar 23, 2015	9.94	10.24	9.90	9.94
3598	NYSE	ERF	Fri, Mar 20, 2015	9.93	10.09	9.74	9.88
3597	NYSE	ERF	Thu, Mar 19, 2015	9.71	9.84	9.54	9.64
3596	NYSE	ERF	Wed, Mar 18, 2015	9.35	10.09	9.10	10.07
3595	NYSE	ERF	Tue, Mar 17, 2015	9.25	9.55	9.20	9.46
3594	NYSE	ERF	Mon, Mar 16, 2015	9.16	9.33	8.86	9.32
3593	NYSE	ERF	Fri, Mar 13, 2015	9.42	9.50	9.00	9.30
3592	NYSE	ERF	Thu, Mar 12, 2015	9.84	9.89	9.48	9.53
3591	NYSE	ERF	Wed, Mar 11, 2015	9.44	9.90	9.36	9.77
3590	NYSE	ERF	Tue, Mar 10, 2015	9.63	9.90	9.40	9.41
3589	NYSE	ERF	Mon, Mar 9, 2015	10.18	10.28	9.74	9.77
3588	NYSE	ERF	Fri, Mar 6, 2015	10.22	10.33	10.07	10.18
3587	NYSE	ERF	Thu, Mar 5, 2015	10.47	10.56	10.25	10.33
3586	NYSE	ERF	Wed, Mar 4, 2015	10.45	10.56	10.14	10.51
3585	NYSE	ERF	Tue, Mar 3, 2015	10.20	10.65	10.20	10.42
3584	NYSE	ERF	Mon, Mar 2, 2015	10.07	10.18	9.75	10.14
3583	NYSE	ERF	Fri, Feb 27, 2015	10.31	10.38	10.08	10.12
3582	NYSE	ERF	Thu, Feb 26, 2015	10.15	10.26	10.02	10.23
3581	NYSE	ERF	Wed, Feb 25, 2015	10.02	10.48	10.00	10.39
3580	NYSE	ERF	Tue, Feb 24, 2015	10.20	10.28	9.88	10.10
3579	NYSE	ERF	Mon, Feb 23, 2015	10.40	10.51	9.99	10.10
3578	NYSE	ERF	Fri, Feb 20, 2015	10.87	11.43	10.65	10.79
3577	NYSE	ERF	Thu, Feb 19, 2015	10.78	11.21	10.35	10.79
3576	NYSE	ERF	Wed, Feb 18, 2015	11.30	11.52	11.02	11.15
3575	NYSE	ERF	Tue, Feb 17, 2015	11.51	11.73	11.29	11.60
3574	NYSE	ERF	Fri, Feb 13, 2015	11.40	11.64	11.23	11.63
3573	NYSE	ERF	Thu, Feb 12, 2015	11.04	11.42	11.01	11.08
3572	NYSE	ERF	Wed, Feb 11, 2015	10.59	11.00	10.36	10.83
3571	NYSE	ERF	Tue, Feb 10, 2015	11.36	11.38	10.64	10.87
3570	NYSE	ERF	Mon, Feb 9, 2015	11.26	11.52	11.23	11.38
3569	NYSE	ERF	Fri, Feb 6, 2015	11.41	11.45	10.93	11.09
3568	NYSE	ERF	Thu, Feb 5, 2015	10.85	11.35	10.85	11.29
3567	NYSE	ERF	Wed, Feb 4, 2015	10.91	10.98	10.15	10.68
3566	NYSE	ERF	Tue, Feb 3, 2015	10.69	11.64	10.63	11.30
3565	NYSE	ERF	Mon, Feb 2, 2015	10.05	10.37	9.88	10.28
3564	NYSE	ERF	Fri, Jan 30, 2015	9.15	10.17	9.11	9.80
3563	NYSE	ERF	Thu, Jan 29, 2015	9.21	9.60	8.90	9.18
3562	NYSE	ERF	Wed, Jan 28, 2015	9.73	9.74	9.21	9.23
3561	NYSE	ERF	Tue, Jan 27, 2015	9.61	9.99	9.53	9.89
3560	NYSE	ERF	Mon, Jan 26, 2015	9.21	9.93	9.15	9.56
3559	NYSE	ERF	Fri, Jan 23, 2015	9.10	9.34	8.87	9.21
3558	NYSE	ERF	Thu, Jan 22, 2015	9.26	9.29	8.78	9.10
3557	NYSE	ERF	Wed, Jan 21, 2015	8.76	9.24	8.71	9.08
3556	NYSE	ERF	Tue, Jan 20, 2015	9.00	9.11	8.40	8.58
3555	NYSE	ERF	Fri, Jan 16, 2015	8.42	9.24	8.42	9.05
3554	NYSE	ERF	Thu, Jan 15, 2015	8.97	8.98	8.36	8.39
3553	NYSE	ERF	Wed, Jan 14, 2015	8.05	8.65	7.96	8.62
3552	NYSE	ERF	Tue, Jan 13, 2015	8.20	8.27	7.89	8.13
3551	NYSE	ERF	Mon, Jan 12, 2015	8.54	8.54	8.16	8.25
3550	NYSE	ERF	Fri, Jan 9, 2015	8.70	8.76	8.49	8.60
3549	NYSE	ERF	Thu, Jan 8, 2015	8.84	8.92	8.55	8.79
3548	NYSE	ERF	Wed, Jan 7, 2015	8.95	9.14	8.57	8.62
3547	NYSE	ERF	Tue, Jan 6, 2015	8.82	9.27	8.75	8.85
3546	NYSE	ERF	Mon, Jan 5, 2015	9.58	9.60	8.86	8.93
3545	NYSE	ERF	Fri, Jan 2, 2015	9.60	9.89	9.44	9.79
3544	NYSE	ERF	Wed, Dec 31, 2014	9.46	9.71	9.33	9.60
3543	NYSE	ERF	Tue, Dec 30, 2014	9.55	9.70	9.34	9.61
3542	NYSE	ERF	Mon, Dec 29, 2014	9.87	10.00	9.52	9.61
3541	NYSE	ERF	Fri, Dec 26, 2014	10.05	10.24	9.82	9.88
3540	NYSE	ERF	Wed, Dec 24, 2014	10.05	10.11	9.66	9.96
3539	NYSE	ERF	Tue, Dec 23, 2014	9.83	10.25	9.80	10.18
3538	NYSE	ERF	Mon, Dec 22, 2014	10.20	10.23	9.55	9.72
3537	NYSE	ERF	Fri, Dec 19, 2014	9.95	10.60	9.85	10.18
3536	NYSE	ERF	Thu, Dec 18, 2014	10.22	11.34	9.52	9.93
3535	NYSE	ERF	Wed, Dec 17, 2014	8.44	9.79	8.44	9.45
3534	NYSE	ERF	Tue, Dec 16, 2014	7.99	9.08	7.75	8.43
3533	NYSE	ERF	Mon, Dec 15, 2014	9.10	9.28	7.98	8.11
3532	NYSE	ERF	Fri, Dec 12, 2014	9.22	9.55	9.03	9.31
3531	NYSE	ERF	Thu, Dec 11, 2014	9.64	10.08	9.39	9.41
3530	NYSE	ERF	Wed, Dec 10, 2014	10.43	10.46	9.56	9.72
3529	NYSE	ERF	Tue, Dec 9, 2014	10.85	11.24	10.64	10.68
3528	NYSE	ERF	Mon, Dec 8, 2014	11.97	12.00	10.70	10.88
3527	NYSE	ERF	Fri, Dec 5, 2014	12.10	12.55	11.97	12.26
3526	NYSE	ERF	Thu, Dec 4, 2014	12.85	13.09	12.05	12.11
3525	NYSE	ERF	Wed, Dec 3, 2014	12.77	13.49	12.60	13.07
3524	NYSE	ERF	Tue, Dec 2, 2014	12.61	13.52	12.61	12.77
3523	NYSE	ERF	Mon, Dec 1, 2014	13.05	13.23	12.48	12.67
3522	NYSE	ERF	Fri, Nov 28, 2014	13.36	13.39	12.75	13.05
3521	NYSE	ERF	Wed, Nov 26, 2014	15.12	15.23	14.52	14.58
3520	NYSE	ERF	Tue, Nov 25, 2014	15.30	15.58	15.10	15.24
3519	NYSE	ERF	Mon, Nov 24, 2014	15.83	15.83	15.04	15.21
3518	NYSE	ERF	Fri, Nov 21, 2014	16.26	16.35	15.66	15.90
3517	NYSE	ERF	Thu, Nov 20, 2014	15.16	15.92	15.06	15.89
3516	NYSE	ERF	Wed, Nov 19, 2014	15.17	15.29	14.81	15.14
3515	NYSE	ERF	Tue, Nov 18, 2014	15.04	15.30	14.70	15.15
3514	NYSE	ERF	Mon, Nov 17, 2014	15.21	15.26	14.70	14.97
3513	NYSE	ERF	Fri, Nov 14, 2014	14.76	15.34	14.67	15.24
3512	NYSE	ERF	Thu, Nov 13, 2014	15.35	15.45	14.84	14.88
3511	NYSE	ERF	Wed, Nov 12, 2014	15.11	15.69	14.93	15.40
3510	NYSE	ERF	Tue, Nov 11, 2014	14.50	15.44	14.49	15.22
3509	NYSE	ERF	Mon, Nov 10, 2014	14.90	15.35	14.36	14.41
3508	NYSE	ERF	Fri, Nov 7, 2014	13.95	15.03	13.87	14.78
3507	NYSE	ERF	Thu, Nov 6, 2014	13.34	13.53	13.03	13.31
3506	NYSE	ERF	Wed, Nov 5, 2014	12.76	13.63	12.76	13.40
3505	NYSE	ERF	Tue, Nov 4, 2014	13.64	13.66	12.67	12.69
3504	NYSE	ERF	Mon, Nov 3, 2014	14.41	14.42	13.77	13.85
3503	NYSE	ERF	Fri, Oct 31, 2014	14.20	14.32	13.92	14.30
3502	NYSE	ERF	Thu, Oct 30, 2014	14.59	14.65	14.15	14.24
3501	NYSE	ERF	Wed, Oct 29, 2014	14.82	15.09	14.48	14.61
3500	NYSE	ERF	Tue, Oct 28, 2014	14.41	14.70	14.15	14.62
3499	NYSE	ERF	Mon, Oct 27, 2014	14.83	14.86	14.44	14.48
3498	NYSE	ERF	Fri, Oct 24, 2014	15.38	15.38	14.99	15.06
3497	NYSE	ERF	Thu, Oct 23, 2014	15.13	15.51	15.00	15.41
3496	NYSE	ERF	Wed, Oct 22, 2014	15.74	15.83	14.87	14.88
3495	NYSE	ERF	Tue, Oct 21, 2014	15.32	15.82	15.23	15.81
3494	NYSE	ERF	Mon, Oct 20, 2014	15.18	15.34	14.89	15.12
3493	NYSE	ERF	Fri, Oct 17, 2014	15.52	15.80	15.01	15.10
3492	NYSE	ERF	Thu, Oct 16, 2014	14.20	15.31	14.13	15.13
3491	NYSE	ERF	Wed, Oct 15, 2014	14.42	14.64	13.96	14.53
3490	NYSE	ERF	Tue, Oct 14, 2014	15.24	15.40	14.63	14.65
3489	NYSE	ERF	Mon, Oct 13, 2014	15.48	15.81	15.07	15.07
3488	NYSE	ERF	Fri, Oct 10, 2014	15.55	15.99	15.02	15.53
3487	NYSE	ERF	Thu, Oct 9, 2014	16.40	16.47	15.60	15.69
3486	NYSE	ERF	Wed, Oct 8, 2014	16.98	17.03	16.19	16.49
3485	NYSE	ERF	Tue, Oct 7, 2014	17.26	17.39	17.07	17.07
3484	NYSE	ERF	Mon, Oct 6, 2014	17.55	17.72	17.13	17.42
3483	NYSE	ERF	Fri, Oct 3, 2014	17.94	18.15	17.48	17.55
3482	NYSE	ERF	Thu, Oct 2, 2014	18.06	18.19	17.44	18.00
3481	NYSE	ERF	Wed, Oct 1, 2014	19.00	19.08	18.11	18.20
3480	NYSE	ERF	Tue, Sep 30, 2014	19.04	19.24	18.76	18.97
3479	NYSE	ERF	Mon, Sep 29, 2014	18.69	19.25	18.64	19.13
3478	NYSE	ERF	Fri, Sep 26, 2014	18.70	19.15	18.59	18.92
3477	NYSE	ERF	Thu, Sep 25, 2014	18.97	19.05	18.73	18.74
3476	NYSE	ERF	Wed, Sep 24, 2014	19.00	19.33	18.62	19.09
3475	NYSE	ERF	Tue, Sep 23, 2014	18.67	19.28	18.67	19.05
3474	NYSE	ERF	Mon, Sep 22, 2014	19.08	19.38	18.71	18.72
3473	NYSE	ERF	Fri, Sep 19, 2014	19.28	19.43	18.45	18.60
3472	NYSE	ERF	Thu, Sep 18, 2014	19.77	19.79	19.24	19.42
3471	NYSE	ERF	Wed, Sep 17, 2014	19.83	20.04	19.60	19.63
3470	NYSE	ERF	Tue, Sep 16, 2014	19.58	19.96	19.58	19.81
3469	NYSE	ERF	Mon, Sep 15, 2014	19.46	19.64	19.20	19.59
3468	NYSE	ERF	Fri, Sep 12, 2014	19.75	19.95	19.35	19.47
3467	NYSE	ERF	Thu, Sep 11, 2014	19.76	19.91	19.55	19.84
3466	NYSE	ERF	Wed, Sep 10, 2014	20.17	20.20	19.84	19.92
3465	NYSE	ERF	Tue, Sep 9, 2014	20.07	20.54	20.05	20.23
3464	NYSE	ERF	Mon, Sep 8, 2014	20.79	20.81	20.21	20.25
3463	NYSE	ERF	Fri, Sep 5, 2014	20.58	21.00	20.50	20.93
3462	NYSE	ERF	Thu, Sep 4, 2014	21.35	21.65	20.48	20.64
3461	NYSE	ERF	Wed, Sep 3, 2014	21.98	22.10	21.33	21.35
3460	NYSE	ERF	Tue, Sep 2, 2014	22.62	22.79	21.88	22.00
3459	NYSE	ERF	Fri, Aug 29, 2014	22.54	22.95	22.54	22.92
3458	NYSE	ERF	Thu, Aug 28, 2014	22.38	22.69	22.31	22.54
3457	NYSE	ERF	Wed, Aug 27, 2014	22.33	22.49	22.22	22.43
3456	NYSE	ERF	Tue, Aug 26, 2014	22.08	22.42	22.08	22.19
3455	NYSE	ERF	Mon, Aug 25, 2014	21.83	22.11	21.78	21.96
3454	NYSE	ERF	Fri, Aug 22, 2014	21.93	21.98	21.57	21.89
3453	NYSE	ERF	Thu, Aug 21, 2014	21.89	21.99	21.77	21.95
3452	NYSE	ERF	Wed, Aug 20, 2014	22.10	22.11	21.68	21.91
3451	NYSE	ERF	Tue, Aug 19, 2014	21.82	22.09	21.77	22.08
3450	NYSE	ERF	Mon, Aug 18, 2014	21.83	22.11	21.56	21.70
3449	NYSE	ERF	Fri, Aug 15, 2014	21.58	21.83	21.32	21.79
3448	NYSE	ERF	Thu, Aug 14, 2014	21.91	22.04	21.49	21.57
3447	NYSE	ERF	Wed, Aug 13, 2014	22.10	22.10	21.73	21.91
3446	NYSE	ERF	Tue, Aug 12, 2014	22.42	22.43	21.85	22.02
3445	NYSE	ERF	Mon, Aug 11, 2014	22.59	22.87	22.38	22.51
3444	NYSE	ERF	Fri, Aug 8, 2014	22.24	22.73	21.89	22.58
3443	NYSE	ERF	Thu, Aug 7, 2014	22.32	22.37	21.95	22.18
3442	NYSE	ERF	Wed, Aug 6, 2014	21.96	22.42	21.88	22.31
3441	NYSE	ERF	Tue, Aug 5, 2014	22.50	22.51	21.55	21.99
3440	NYSE	ERF	Mon, Aug 4, 2014	22.36	22.75	22.21	22.56
3439	NYSE	ERF	Fri, Aug 1, 2014	22.70	22.71	21.86	22.36
3438	NYSE	ERF	Thu, Jul 31, 2014	23.42	23.42	22.73	22.92
3437	NYSE	ERF	Wed, Jul 30, 2014	23.68	23.76	23.39	23.53
3436	NYSE	ERF	Tue, Jul 29, 2014	23.30	23.68	23.28	23.55
3435	NYSE	ERF	Mon, Jul 28, 2014	23.67	23.67	23.19	23.30
3434	NYSE	ERF	Fri, Jul 25, 2014	23.81	23.96	23.64	23.72
3433	NYSE	ERF	Thu, Jul 24, 2014	24.29	24.30	23.76	23.93
3432	NYSE	ERF	Wed, Jul 23, 2014	23.84	24.23	23.84	24.21
3431	NYSE	ERF	Tue, Jul 22, 2014	23.53	23.95	23.47	23.86
3430	NYSE	ERF	Mon, Jul 21, 2014	23.62	23.63	23.37	23.57
3429	NYSE	ERF	Fri, Jul 18, 2014	23.30	23.78	23.23	23.66
3428	NYSE	ERF	Thu, Jul 17, 2014	23.66	23.84	23.16	23.21
3427	NYSE	ERF	Wed, Jul 16, 2014	23.23	23.65	23.23	23.61
3426	NYSE	ERF	Tue, Jul 15, 2014	23.61	23.65	22.88	23.18
3425	NYSE	ERF	Mon, Jul 14, 2014	23.59	23.84	23.54	23.66
3424	NYSE	ERF	Fri, Jul 11, 2014	23.93	23.93	23.27	23.44
3423	NYSE	ERF	Thu, Jul 10, 2014	23.76	24.11	23.54	23.97
3422	NYSE	ERF	Wed, Jul 9, 2014	24.42	24.56	23.85	24.00
3421	NYSE	ERF	Tue, Jul 8, 2014	24.20	24.40	24.07	24.40
3420	NYSE	ERF	Mon, Jul 7, 2014	24.87	24.90	24.07	24.16
3419	NYSE	ERF	Thu, Jul 3, 2014	25.19	25.25	25.06	25.17
3418	NYSE	ERF	Wed, Jul 2, 2014	25.15	25.37	24.98	25.23
3417	NYSE	ERF	Tue, Jul 1, 2014	25.25	25.35	25.06	25.18
3416	NYSE	ERF	Mon, Jun 30, 2014	24.83	25.24	24.73	25.18
3415	NYSE	ERF	Fri, Jun 27, 2014	24.77	24.95	24.71	24.81
3414	NYSE	ERF	Thu, Jun 26, 2014	24.24	24.83	24.15	24.76
3413	NYSE	ERF	Wed, Jun 25, 2014	23.75	24.41	23.73	24.08
3412	NYSE	ERF	Tue, Jun 24, 2014	24.39	24.54	23.80	23.91
3411	NYSE	ERF	Mon, Jun 23, 2014	24.52	24.65	24.27	24.39
3410	NYSE	ERF	Fri, Jun 20, 2014	24.55	24.64	24.18	24.41
3409	NYSE	ERF	Thu, Jun 19, 2014	24.31	24.60	24.29	24.43
3408	NYSE	ERF	Wed, Jun 18, 2014	24.13	24.61	23.96	24.19
3407	NYSE	ERF	Tue, Jun 17, 2014	23.48	23.91	23.38	23.86
3406	NYSE	ERF	Mon, Jun 16, 2014	23.45	23.62	23.33	23.54
3405	NYSE	ERF	Fri, Jun 13, 2014	23.46	23.50	23.21	23.47
3404	NYSE	ERF	Thu, Jun 12, 2014	23.21	23.66	23.21	23.43
3403	NYSE	ERF	Wed, Jun 11, 2014	22.85	23.27	22.82	23.26
3402	NYSE	ERF	Tue, Jun 10, 2014	22.78	22.99	22.78	22.87
3401	NYSE	ERF	Mon, Jun 9, 2014	23.15	23.22	22.75	22.92
3400	NYSE	ERF	Fri, Jun 6, 2014	23.49	23.64	23.34	23.54
3399	NYSE	ERF	Thu, Jun 5, 2014	23.41	23.74	23.26	23.51
3398	NYSE	ERF	Wed, Jun 4, 2014	23.22	23.45	23.00	23.44
3397	NYSE	ERF	Tue, Jun 3, 2014	22.89	23.33	22.89	23.28
3396	NYSE	ERF	Mon, Jun 2, 2014	22.69	23.10	22.41	23.06
3395	NYSE	ERF	Fri, May 30, 2014	22.35	22.80	22.19	22.69
3394	NYSE	ERF	Thu, May 29, 2014	22.31	22.40	22.05	22.31
3393	NYSE	ERF	Wed, May 28, 2014	21.99	22.40	21.95	22.28
3392	NYSE	ERF	Tue, May 27, 2014	22.15	22.20	21.80	21.84
3391	NYSE	ERF	Fri, May 23, 2014	21.71	22.21	21.61	22.00
3390	NYSE	ERF	Thu, May 22, 2014	21.69	21.92	21.54	21.71
3389	NYSE	ERF	Wed, May 21, 2014	21.35	21.80	21.35	21.70
3388	NYSE	ERF	Tue, May 20, 2014	21.56	21.66	21.24	21.32
3387	NYSE	ERF	Mon, May 19, 2014	21.19	21.44	21.18	21.26
3386	NYSE	ERF	Fri, May 16, 2014	21.45	21.52	21.01	21.17
3385	NYSE	ERF	Thu, May 15, 2014	21.71	21.73	21.21	21.48
3384	NYSE	ERF	Wed, May 14, 2014	21.58	21.96	21.49	21.73
3383	NYSE	ERF	Tue, May 13, 2014	21.39	21.67	21.32	21.54
3382	NYSE	ERF	Mon, May 12, 2014	21.41	21.60	21.18	21.30
3381	NYSE	ERF	Fri, May 9, 2014	22.02	22.02	20.18	21.09
3380	NYSE	ERF	Thu, May 8, 2014	22.43	22.51	21.86	21.91
3379	NYSE	ERF	Wed, May 7, 2014	22.22	22.50	22.14	22.48
3378	NYSE	ERF	Tue, May 6, 2014	22.06	22.29	22.06	22.14
3377	NYSE	ERF	Mon, May 5, 2014	22.02	22.23	21.84	22.06
3376	NYSE	ERF	Fri, May 2, 2014	21.91	22.22	21.91	22.11
3375	NYSE	ERF	Thu, May 1, 2014	22.03	22.23	21.85	21.96
3374	NYSE	ERF	Wed, Apr 30, 2014	22.30	22.30	21.91	22.21
3373	NYSE	ERF	Tue, Apr 29, 2014	21.99	22.63	21.89	22.23
3372	NYSE	ERF	Mon, Apr 28, 2014	21.86	21.90	21.59	21.82
3371	NYSE	ERF	Fri, Apr 25, 2014	21.85	21.93	21.50	21.73
3370	NYSE	ERF	Thu, Apr 24, 2014	22.08	22.26	21.84	21.90
3369	NYSE	ERF	Wed, Apr 23, 2014	22.00	22.24	21.97	22.03
3368	NYSE	ERF	Tue, Apr 22, 2014	21.93	22.10	21.76	22.06
3367	NYSE	ERF	Mon, Apr 21, 2014	21.90	22.07	21.90	21.96
3366	NYSE	ERF	Thu, Apr 17, 2014	21.65	21.94	21.57	21.89
3365	NYSE	ERF	Wed, Apr 16, 2014	21.18	21.59	21.18	21.57
3364	NYSE	ERF	Tue, Apr 15, 2014	21.02	21.50	21.00	21.16
3363	NYSE	ERF	Mon, Apr 14, 2014	21.11	21.38	20.95	21.06
3362	NYSE	ERF	Fri, Apr 11, 2014	20.85	21.28	20.81	21.16
3361	NYSE	ERF	Thu, Apr 10, 2014	21.03	21.22	20.91	20.99
3360	NYSE	ERF	Wed, Apr 9, 2014	20.58	21.11	20.57	21.07
3359	NYSE	ERF	Tue, Apr 8, 2014	20.11	20.59	20.06	20.54
3358	NYSE	ERF	Mon, Apr 7, 2014	19.73	20.06	19.58	20.04
3357	NYSE	ERF	Fri, Apr 4, 2014	20.16	20.18	19.68	19.72
3356	NYSE	ERF	Thu, Apr 3, 2014	19.95	20.17	19.95	19.99
3355	NYSE	ERF	Wed, Apr 2, 2014	19.87	20.04	19.81	19.97
3354	NYSE	ERF	Tue, Apr 1, 2014	20.00	20.17	19.95	19.99
3353	NYSE	ERF	Mon, Mar 31, 2014	19.98	20.17	19.86	20.03
3352	NYSE	ERF	Fri, Mar 28, 2014	19.82	19.91	19.65	19.88
3351	NYSE	ERF	Thu, Mar 27, 2014	19.33	19.77	19.26	19.69
3350	NYSE	ERF	Wed, Mar 26, 2014	19.38	19.50	19.21	19.25
3349	NYSE	ERF	Tue, Mar 25, 2014	19.36	19.40	19.11	19.23
3348	NYSE	ERF	Mon, Mar 24, 2014	19.54	19.62	19.14	19.26
3347	NYSE	ERF	Fri, Mar 21, 2014	19.19	19.75	19.05	19.55
3346	NYSE	ERF	Thu, Mar 20, 2014	18.86	19.09	18.54	19.06
3345	NYSE	ERF	Wed, Mar 19, 2014	19.13	19.22	18.84	18.95
3344	NYSE	ERF	Tue, Mar 18, 2014	18.94	19.25	18.85	19.08
3343	NYSE	ERF	Mon, Mar 17, 2014	18.82	18.95	18.69	18.91
3342	NYSE	ERF	Fri, Mar 14, 2014	18.60	18.92	18.59	18.75
3341	NYSE	ERF	Thu, Mar 13, 2014	18.69	19.00	18.62	18.68
3340	NYSE	ERF	Wed, Mar 12, 2014	18.46	18.65	18.17	18.64
3339	NYSE	ERF	Tue, Mar 11, 2014	18.97	19.03	18.68	18.75
3338	NYSE	ERF	Mon, Mar 10, 2014	19.18	19.25	18.98	19.00
3337	NYSE	ERF	Fri, Mar 7, 2014	19.36	19.41	19.14	19.20
3336	NYSE	ERF	Thu, Mar 6, 2014	19.45	19.77	19.38	19.43
3335	NYSE	ERF	Wed, Mar 5, 2014	19.57	19.60	19.24	19.41
3334	NYSE	ERF	Tue, Mar 4, 2014	19.67	19.83	19.49	19.59
3333	NYSE	ERF	Mon, Mar 3, 2014	19.55	19.93	19.47	19.63
3332	NYSE	ERF	Fri, Feb 28, 2014	19.58	19.97	19.44	19.82
3331	NYSE	ERF	Thu, Feb 27, 2014	19.70	19.78	19.46	19.58
3330	NYSE	ERF	Wed, Feb 26, 2014	19.96	20.06	19.58	19.73
3329	NYSE	ERF	Tue, Feb 25, 2014	19.81	20.18	19.62	20.14
3328	NYSE	ERF	Mon, Feb 24, 2014	19.31	19.96	19.30	19.92
3327	NYSE	ERF	Fri, Feb 21, 2014	19.83	19.86	19.13	19.31
3326	NYSE	ERF	Thu, Feb 20, 2014	19.83	20.02	19.69	19.83
3325	NYSE	ERF	Wed, Feb 19, 2014	19.82	19.98	19.70	19.86
3324	NYSE	ERF	Tue, Feb 18, 2014	19.69	19.99	19.62	19.85
3323	NYSE	ERF	Fri, Feb 14, 2014	19.75	19.81	19.62	19.64
3322	NYSE	ERF	Thu, Feb 13, 2014	19.45	19.92	19.44	19.81
3321	NYSE	ERF	Wed, Feb 12, 2014	19.49	19.65	19.38	19.56
3320	NYSE	ERF	Tue, Feb 11, 2014	19.17	19.52	19.17	19.38
3319	NYSE	ERF	Mon, Feb 10, 2014	19.34	19.47	19.18	19.21
3318	NYSE	ERF	Fri, Feb 7, 2014	19.45	19.54	19.14	19.46
3317	NYSE	ERF	Thu, Feb 6, 2014	19.04	19.44	18.93	19.39
3316	NYSE	ERF	Wed, Feb 5, 2014	18.51	19.15	18.43	19.01
3315	NYSE	ERF	Tue, Feb 4, 2014	17.65	18.67	17.65	18.53
3314	NYSE	ERF	Mon, Feb 3, 2014	18.02	18.14	17.54	17.66
3313	NYSE	ERF	Fri, Jan 31, 2014	18.02	18.24	17.87	18.08
3312	NYSE	ERF	Thu, Jan 30, 2014	18.23	18.42	18.11	18.27
3311	NYSE	ERF	Wed, Jan 29, 2014	18.01	18.26	17.87	18.18
3310	NYSE	ERF	Tue, Jan 28, 2014	17.67	18.19	17.67	18.15
3309	NYSE	ERF	Mon, Jan 27, 2014	18.07	18.16	17.62	17.71
3308	NYSE	ERF	Fri, Jan 24, 2014	18.20	18.30	17.86	18.06
3307	NYSE	ERF	Thu, Jan 23, 2014	18.35	18.54	18.23	18.27
3306	NYSE	ERF	Wed, Jan 22, 2014	18.51	18.61	18.17	18.48
3305	NYSE	ERF	Tue, Jan 21, 2014	18.42	18.51	18.26	18.44
3304	NYSE	ERF	Fri, Jan 17, 2014	18.09	18.41	17.98	18.23
3303	NYSE	ERF	Thu, Jan 16, 2014	17.71	18.10	17.71	18.02
3302	NYSE	ERF	Wed, Jan 15, 2014	17.32	17.80	17.31	17.76
3301	NYSE	ERF	Tue, Jan 14, 2014	17.43	17.52	17.26	17.34
3300	NYSE	ERF	Mon, Jan 13, 2014	17.63	17.73	17.37	17.47
3299	NYSE	ERF	Fri, Jan 10, 2014	17.32	17.64	17.15	17.55
3298	NYSE	ERF	Thu, Jan 9, 2014	17.56	17.59	17.30	17.41
3297	NYSE	ERF	Wed, Jan 8, 2014	17.53	17.63	17.40	17.55
3296	NYSE	ERF	Tue, Jan 7, 2014	17.47	17.70	17.42	17.54
3295	NYSE	ERF	Mon, Jan 6, 2014	17.53	17.55	17.29	17.48
3294	NYSE	ERF	Fri, Jan 3, 2014	17.89	17.90	17.49	17.62
3293	NYSE	ERF	Thu, Jan 2, 2014	18.12	18.22	17.67	17.83
3292	NYSE	ERF	Tue, Dec 31, 2013	18.14	18.28	18.08	18.18
3291	NYSE	ERF	Mon, Dec 30, 2013	18.20	18.40	18.08	18.11
3290	NYSE	ERF	Fri, Dec 27, 2013	18.15	18.30	17.99	18.29
3289	NYSE	ERF	Thu, Dec 26, 2013	18.16	18.29	18.06	18.15
3288	NYSE	ERF	Tue, Dec 24, 2013	18.28	18.43	18.18	18.18
3287	NYSE	ERF	Mon, Dec 23, 2013	18.24	18.47	18.21	18.28
3286	NYSE	ERF	Fri, Dec 20, 2013	18.34	18.42	18.20	18.22
3285	NYSE	ERF	Thu, Dec 19, 2013	18.10	18.37	18.10	18.28
3284	NYSE	ERF	Wed, Dec 18, 2013	18.22	18.35	17.93	18.21
3283	NYSE	ERF	Tue, Dec 17, 2013	18.00	18.25	17.96	18.17
3282	NYSE	ERF	Mon, Dec 16, 2013	18.24	18.42	18.01	18.03
3281	NYSE	ERF	Fri, Dec 13, 2013	18.18	18.30	18.07	18.24
3280	NYSE	ERF	Thu, Dec 12, 2013	18.20	18.35	18.12	18.25
3279	NYSE	ERF	Wed, Dec 11, 2013	18.50	18.53	18.17	18.23
3278	NYSE	ERF	Tue, Dec 10, 2013	18.15	18.65	18.13	18.54
3277	NYSE	ERF	Mon, Dec 9, 2013	18.30	18.44	18.14	18.21
3276	NYSE	ERF	Fri, Dec 6, 2013	18.70	18.79	18.21	18.30
3275	NYSE	ERF	Thu, Dec 5, 2013	18.43	18.75	18.37	18.61
3274	NYSE	ERF	Wed, Dec 4, 2013	18.56	18.60	18.20	18.54
3273	NYSE	ERF	Tue, Dec 3, 2013	18.22	18.72	18.13	18.54
3272	NYSE	ERF	Mon, Dec 2, 2013	18.25	18.26	17.82	18.01
3271	NYSE	ERF	Fri, Nov 29, 2013	18.24	18.75	18.23	18.43
3270	NYSE	ERF	Wed, Nov 27, 2013	18.09	18.40	18.03	18.30
3269	NYSE	ERF	Tue, Nov 26, 2013	18.43	18.62	18.17	18.19
3268	NYSE	ERF	Mon, Nov 25, 2013	18.60	18.69	18.39	18.43
3267	NYSE	ERF	Fri, Nov 22, 2013	18.52	18.75	18.36	18.60
3266	NYSE	ERF	Thu, Nov 21, 2013	18.28	18.72	18.25	18.53
3265	NYSE	ERF	Wed, Nov 20, 2013	18.14	18.37	18.11	18.25
3264	NYSE	ERF	Tue, Nov 19, 2013	17.93	18.56	17.93	18.14
3263	NYSE	ERF	Mon, Nov 18, 2013	18.50	18.50	17.89	17.94
3262	NYSE	ERF	Fri, Nov 15, 2013	18.16	18.39	18.09	18.34
3261	NYSE	ERF	Thu, Nov 14, 2013	18.00	18.21	17.75	18.16
3260	NYSE	ERF	Wed, Nov 13, 2013	17.30	18.10	17.30	17.99
3259	NYSE	ERF	Tue, Nov 12, 2013	17.75	17.78	17.37	17.40
3258	NYSE	ERF	Mon, Nov 11, 2013	17.45	18.03	17.41	17.77
3257	NYSE	ERF	Fri, Nov 8, 2013	16.83	17.40	16.80	17.28
3256	NYSE	ERF	Thu, Nov 7, 2013	17.08	17.10	16.58	16.76
3255	NYSE	ERF	Wed, Nov 6, 2013	17.30	17.33	17.07	17.16
3254	NYSE	ERF	Tue, Nov 5, 2013	17.13	17.30	17.12	17.23
3253	NYSE	ERF	Mon, Nov 4, 2013	17.22	17.35	17.06	17.21
3252	NYSE	ERF	Fri, Nov 1, 2013	17.16	17.25	17.06	17.21
3251	NYSE	ERF	Thu, Oct 31, 2013	17.17	17.45	17.10	17.27
3250	NYSE	ERF	Wed, Oct 30, 2013	17.41	17.45	16.92	17.08
3249	NYSE	ERF	Tue, Oct 29, 2013	17.38	17.61	17.30	17.45
3248	NYSE	ERF	Mon, Oct 28, 2013	17.35	17.37	17.02	17.26
3247	NYSE	ERF	Fri, Oct 25, 2013	16.94	17.35	16.89	17.31
3246	NYSE	ERF	Thu, Oct 24, 2013	16.54	16.95	16.52	16.89
3245	NYSE	ERF	Wed, Oct 23, 2013	17.06	17.10	16.49	16.57
3244	NYSE	ERF	Tue, Oct 22, 2013	17.30	17.39	16.85	17.06
3243	NYSE	ERF	Mon, Oct 21, 2013	17.30	17.49	17.13	17.19
3242	NYSE	ERF	Fri, Oct 18, 2013	17.36	17.45	17.16	17.29
3241	NYSE	ERF	Thu, Oct 17, 2013	16.83	17.31	16.71	17.25
3240	NYSE	ERF	Wed, Oct 16, 2013	16.28	16.52	16.23	16.52
3239	NYSE	ERF	Tue, Oct 15, 2013	16.57	16.57	16.12	16.23
3238	NYSE	ERF	Mon, Oct 14, 2013	16.38	16.62	16.35	16.57
3237	NYSE	ERF	Fri, Oct 11, 2013	16.36	16.70	16.35	16.57
3236	NYSE	ERF	Thu, Oct 10, 2013	16.17	16.59	16.16	16.40
3235	NYSE	ERF	Wed, Oct 9, 2013	16.11	16.11	15.53	16.02
3234	NYSE	ERF	Tue, Oct 8, 2013	16.46	16.48	16.03	16.06
3233	NYSE	ERF	Mon, Oct 7, 2013	16.27	16.52	16.25	16.40
3232	NYSE	ERF	Fri, Oct 4, 2013	16.35	16.48	16.23	16.44
3231	NYSE	ERF	Thu, Oct 3, 2013	16.48	16.57	16.22	16.38
3230	NYSE	ERF	Wed, Oct 2, 2013	16.61	16.63	16.45	16.52
3229	NYSE	ERF	Tue, Oct 1, 2013	16.55	16.88	16.48	16.76
3228	NYSE	ERF	Mon, Sep 30, 2013	16.75	17.06	16.58	16.59
3227	NYSE	ERF	Fri, Sep 27, 2013	17.05	17.06	16.85	16.94
3226	NYSE	ERF	Thu, Sep 26, 2013	16.79	17.08	16.77	17.03
3225	NYSE	ERF	Wed, Sep 25, 2013	17.06	17.16	16.75	16.76
3224	NYSE	ERF	Tue, Sep 24, 2013	17.09	17.19	16.97	17.11
3223	NYSE	ERF	Mon, Sep 23, 2013	16.89	17.20	16.86	17.11
3222	NYSE	ERF	Fri, Sep 20, 2013	17.21	17.22	16.86	16.97
3221	NYSE	ERF	Thu, Sep 19, 2013	17.54	17.58	17.10	17.16
3220	NYSE	ERF	Wed, Sep 18, 2013	17.31	17.69	17.18	17.54
3219	NYSE	ERF	Tue, Sep 17, 2013	17.17	17.46	17.07	17.37
3218	NYSE	ERF	Mon, Sep 16, 2013	17.30	17.41	17.08	17.09
3217	NYSE	ERF	Fri, Sep 13, 2013	17.15	17.28	17.04	17.16
3216	NYSE	ERF	Thu, Sep 12, 2013	17.47	17.47	17.10	17.18
3215	NYSE	ERF	Wed, Sep 11, 2013	17.21	17.48	17.00	17.47
3214	NYSE	ERF	Tue, Sep 10, 2013	17.40	17.45	17.14	17.27
3213	NYSE	ERF	Mon, Sep 9, 2013	17.36	17.57	17.36	17.43
3212	NYSE	ERF	Fri, Sep 6, 2013	17.55	17.65	17.34	17.40
3211	NYSE	ERF	Thu, Sep 5, 2013	17.21	17.44	17.15	17.42
3210	NYSE	ERF	Wed, Sep 4, 2013	16.85	17.25	16.75	17.25
3209	NYSE	ERF	Tue, Sep 3, 2013	16.69	16.96	16.68	16.93
3208	NYSE	ERF	Fri, Aug 30, 2013	16.65	16.73	16.55	16.61
3207	NYSE	ERF	Thu, Aug 29, 2013	16.77	16.80	16.57	16.60
3206	NYSE	ERF	Wed, Aug 28, 2013	16.47	16.93	16.33	16.81
3205	NYSE	ERF	Tue, Aug 27, 2013	16.41	16.60	16.30	16.39
3204	NYSE	ERF	Mon, Aug 26, 2013	16.65	16.73	16.44	16.50
3203	NYSE	ERF	Fri, Aug 23, 2013	16.43	16.70	16.37	16.61
3202	NYSE	ERF	Thu, Aug 22, 2013	16.27	16.51	16.25	16.39
3201	NYSE	ERF	Wed, Aug 21, 2013	16.43	16.54	16.10	16.26
3200	NYSE	ERF	Tue, Aug 20, 2013	16.48	16.73	16.30	16.51
3199	NYSE	ERF	Mon, Aug 19, 2013	16.97	17.08	16.47	16.54
3198	NYSE	ERF	Fri, Aug 16, 2013	16.91	17.22	16.82	16.99
3197	NYSE	ERF	Thu, Aug 15, 2013	16.93	17.08	16.65	16.94
3196	NYSE	ERF	Wed, Aug 14, 2013	16.74	17.22	16.74	17.16
3195	NYSE	ERF	Tue, Aug 13, 2013	16.83	16.83	16.59	16.80
3194	NYSE	ERF	Mon, Aug 12, 2013	17.02	17.07	16.73	16.86
3193	NYSE	ERF	Fri, Aug 9, 2013	16.61	17.37	16.52	17.03
3192	NYSE	ERF	Thu, Aug 8, 2013	16.23	16.62	16.19	16.46
3191	NYSE	ERF	Wed, Aug 7, 2013	16.26	16.37	16.06	16.20
3190	NYSE	ERF	Tue, Aug 6, 2013	16.52	16.62	16.27	16.36
3189	NYSE	ERF	Mon, Aug 5, 2013	16.45	16.55	16.31	16.46
3188	NYSE	ERF	Fri, Aug 2, 2013	16.65	16.68	16.38	16.52
3187	NYSE	ERF	Thu, Aug 1, 2013	16.36	16.78	16.28	16.64
3186	NYSE	ERF	Wed, Jul 31, 2013	16.12	16.32	16.05	16.25
3185	NYSE	ERF	Tue, Jul 30, 2013	16.30	16.45	16.08	16.10
3184	NYSE	ERF	Mon, Jul 29, 2013	16.40	16.44	15.95	16.27
3183	NYSE	ERF	Fri, Jul 26, 2013	16.27	16.55	16.22	16.40
3182	NYSE	ERF	Thu, Jul 25, 2013	16.26	16.49	16.14	16.34
3181	NYSE	ERF	Wed, Jul 24, 2013	16.65	16.73	16.31	16.39
3180	NYSE	ERF	Tue, Jul 23, 2013	16.52	16.75	16.35	16.61
3179	NYSE	ERF	Mon, Jul 22, 2013	16.54	16.63	16.43	16.49
3178	NYSE	ERF	Fri, Jul 19, 2013	16.38	16.62	16.34	16.54
3177	NYSE	ERF	Thu, Jul 18, 2013	16.16	16.55	16.13	16.42
3176	NYSE	ERF	Wed, Jul 17, 2013	16.06	16.32	16.04	16.13
3175	NYSE	ERF	Tue, Jul 16, 2013	15.99	16.15	15.97	16.05
3174	NYSE	ERF	Mon, Jul 15, 2013	15.83	16.03	15.83	15.98
3173	NYSE	ERF	Fri, Jul 12, 2013	15.74	15.94	15.74	15.89
3172	NYSE	ERF	Thu, Jul 11, 2013	15.61	15.98	15.55	15.78
3171	NYSE	ERF	Wed, Jul 10, 2013	15.29	15.55	15.28	15.47
3170	NYSE	ERF	Tue, Jul 9, 2013	15.25	15.33	15.02	15.25
3169	NYSE	ERF	Mon, Jul 8, 2013	14.80	15.16	14.79	15.12
3168	NYSE	ERF	Fri, Jul 5, 2013	14.63	14.75	14.43	14.72
3167	NYSE	ERF	Wed, Jul 3, 2013	14.71	14.77	14.55	14.71
3166	NYSE	ERF	Tue, Jul 2, 2013	14.82	14.88	14.52	14.73
3165	NYSE	ERF	Mon, Jul 1, 2013	14.87	15.04	14.76	14.82
3164	NYSE	ERF	Fri, Jun 28, 2013	14.59	14.99	14.51	14.79
3163	NYSE	ERF	Thu, Jun 27, 2013	14.29	15.04	14.28	14.65
3162	NYSE	ERF	Wed, Jun 26, 2013	14.07	14.29	14.01	14.19
3161	NYSE	ERF	Tue, Jun 25, 2013	13.99	14.07	13.77	13.93
3160	NYSE	ERF	Mon, Jun 24, 2013	13.86	14.08	13.57	13.95
3159	NYSE	ERF	Fri, Jun 21, 2013	14.60	14.66	14.21	14.26
3158	NYSE	ERF	Thu, Jun 20, 2013	14.92	14.99	14.38	14.53
3157	NYSE	ERF	Wed, Jun 19, 2013	15.34	15.50	15.19	15.30
3156	NYSE	ERF	Tue, Jun 18, 2013	14.87	15.41	14.86	15.37
3155	NYSE	ERF	Mon, Jun 17, 2013	14.81	15.10	14.78	14.90
3154	NYSE	ERF	Fri, Jun 14, 2013	15.06	15.07	14.72	14.75
3153	NYSE	ERF	Thu, Jun 13, 2013	14.84	15.08	14.77	15.01
3152	NYSE	ERF	Wed, Jun 12, 2013	15.02	15.10	14.74	14.81
3151	NYSE	ERF	Tue, Jun 11, 2013	15.17	15.20	15.00	15.03
3150	NYSE	ERF	Mon, Jun 10, 2013	15.13	15.40	14.99	15.35
3149	NYSE	ERF	Fri, Jun 7, 2013	15.26	15.33	15.00	15.13
3148	NYSE	ERF	Thu, Jun 6, 2013	14.90	15.24	14.89	15.21
3147	NYSE	ERF	Wed, Jun 5, 2013	15.18	15.20	14.89	14.90
3146	NYSE	ERF	Tue, Jun 4, 2013	15.46	15.56	14.96	15.27
3145	NYSE	ERF	Mon, Jun 3, 2013	15.45	15.60	15.35	15.51
3144	NYSE	ERF	Fri, May 31, 2013	15.62	15.74	15.50	15.58
3143	NYSE	ERF	Thu, May 30, 2013	15.78	15.81	15.58	15.70
3142	NYSE	ERF	Wed, May 29, 2013	15.86	16.08	15.31	15.79
3141	NYSE	ERF	Tue, May 28, 2013	16.03	16.33	16.00	16.14
3140	NYSE	ERF	Fri, May 24, 2013	15.96	16.08	15.85	15.98
3139	NYSE	ERF	Thu, May 23, 2013	15.68	16.09	15.54	16.06
3138	NYSE	ERF	Wed, May 22, 2013	16.26	16.35	15.84	15.94
3137	NYSE	ERF	Tue, May 21, 2013	15.98	16.47	15.93	16.26
3136	NYSE	ERF	Mon, May 20, 2013	15.88	16.19	15.88	16.15
3135	NYSE	ERF	Fri, May 17, 2013	15.62	16.00	15.54	15.86
3134	NYSE	ERF	Thu, May 16, 2013	15.47	15.82	15.42	15.61
3133	NYSE	ERF	Wed, May 15, 2013	15.58	15.69	15.16	15.53
3132	NYSE	ERF	Tue, May 14, 2013	15.72	15.95	15.44	15.65
3131	NYSE	ERF	Mon, May 13, 2013	15.26	15.86	15.15	15.69
3130	NYSE	ERF	Fri, May 10, 2013	14.29	15.07	14.15	15.03
3129	NYSE	ERF	Thu, May 9, 2013	14.02	14.34	13.96	14.25
3128	NYSE	ERF	Wed, May 8, 2013	14.25	14.42	14.02	14.10
3127	NYSE	ERF	Tue, May 7, 2013	14.22	14.42	14.18	14.28
3126	NYSE	ERF	Mon, May 6, 2013	14.11	14.35	14.02	14.22
3125	NYSE	ERF	Fri, May 3, 2013	14.00	14.29	13.97	14.11
3124	NYSE	ERF	Thu, May 2, 2013	13.97	14.09	13.89	13.89
3123	NYSE	ERF	Wed, May 1, 2013	13.76	14.08	13.76	13.96
3122	NYSE	ERF	Tue, Apr 30, 2013	13.72	14.14	13.71	14.10
3121	NYSE	ERF	Mon, Apr 29, 2013	13.70	13.80	13.63	13.70
3120	NYSE	ERF	Fri, Apr 26, 2013	13.65	13.70	13.30	13.58
3119	NYSE	ERF	Thu, Apr 25, 2013	13.30	13.90	13.19	13.65
3118	NYSE	ERF	Wed, Apr 24, 2013	12.80	13.12	12.75	13.05
3117	NYSE	ERF	Tue, Apr 23, 2013	12.85	12.92	12.66	12.76
3116	NYSE	ERF	Mon, Apr 22, 2013	12.91	13.03	12.72	12.81
3115	NYSE	ERF	Fri, Apr 19, 2013	12.80	12.95	12.65	12.87
3114	NYSE	ERF	Thu, Apr 18, 2013	12.80	13.14	12.63	12.90
3113	NYSE	ERF	Wed, Apr 17, 2013	13.26	13.26	12.60	12.76
3112	NYSE	ERF	Tue, Apr 16, 2013	13.28	13.47	13.10	13.41
3111	NYSE	ERF	Mon, Apr 15, 2013	13.68	13.70	13.20	13.21
3110	NYSE	ERF	Fri, Apr 12, 2013	14.06	14.10	13.75	13.90
3109	NYSE	ERF	Thu, Apr 11, 2013	14.32	14.43	14.09	14.15
3108	NYSE	ERF	Wed, Apr 10, 2013	14.30	14.31	14.00	14.04
3107	NYSE	ERF	Tue, Apr 9, 2013	13.88	14.38	13.85	14.24
3106	NYSE	ERF	Mon, Apr 8, 2013	13.69	13.97	13.68	13.86
3105	NYSE	ERF	Fri, Apr 5, 2013	13.22	13.75	13.05	13.68
3104	NYSE	ERF	Thu, Apr 4, 2013	13.91	14.00	13.39	13.44
3103	NYSE	ERF	Wed, Apr 3, 2013	14.53	14.61	13.84	13.91
3102	NYSE	ERF	Tue, Apr 2, 2013	14.45	14.71	14.45	14.58
3101	NYSE	ERF	Mon, Apr 1, 2013	14.58	14.65	14.33	14.45
3100	NYSE	ERF	Thu, Mar 28, 2013	14.73	14.77	14.54	14.61
3099	NYSE	ERF	Wed, Mar 27, 2013	14.78	14.85	14.58	14.73
3098	NYSE	ERF	Tue, Mar 26, 2013	14.63	14.92	14.63	14.87
3097	NYSE	ERF	Mon, Mar 25, 2013	14.71	14.76	14.45	14.54
3096	NYSE	ERF	Fri, Mar 22, 2013	14.71	14.79	14.50	14.61
3095	NYSE	ERF	Thu, Mar 21, 2013	14.73	14.87	14.63	14.64
3094	NYSE	ERF	Wed, Mar 20, 2013	14.87	14.90	14.57	14.75
3093	NYSE	ERF	Tue, Mar 19, 2013	14.87	15.04	14.72	14.79
3092	NYSE	ERF	Mon, Mar 18, 2013	14.93	15.17	14.86	14.87
3091	NYSE	ERF	Fri, Mar 15, 2013	14.75	15.04	14.70	15.01
3090	NYSE	ERF	Thu, Mar 14, 2013	14.29	14.68	14.24	14.67
3089	NYSE	ERF	Wed, Mar 13, 2013	14.55	14.58	14.22	14.29
3088	NYSE	ERF	Tue, Mar 12, 2013	14.58	14.69	14.50	14.55
3087	NYSE	ERF	Mon, Mar 11, 2013	14.38	14.58	14.19	14.55
3086	NYSE	ERF	Fri, Mar 8, 2013	14.21	14.44	14.17	14.39
3085	NYSE	ERF	Thu, Mar 7, 2013	13.83	14.41	13.83	14.17
3084	NYSE	ERF	Wed, Mar 6, 2013	13.71	13.85	13.65	13.77
3083	NYSE	ERF	Tue, Mar 5, 2013	13.69	13.80	13.62	13.71
3082	NYSE	ERF	Mon, Mar 4, 2013	13.78	13.88	13.49	13.60
3081	NYSE	ERF	Fri, Mar 1, 2013	13.46	13.81	13.42	13.77
3080	NYSE	ERF	Thu, Feb 28, 2013	13.38	13.58	13.32	13.56
3079	NYSE	ERF	Wed, Feb 27, 2013	13.05	13.45	12.98	13.32
3078	NYSE	ERF	Tue, Feb 26, 2013	12.91	13.10	12.74	13.09
3077	NYSE	ERF	Mon, Feb 25, 2013	12.90	13.25	12.84	12.86
3076	NYSE	ERF	Fri, Feb 22, 2013	12.38	12.83	12.30	12.72
3075	NYSE	ERF	Thu, Feb 21, 2013	12.39	12.40	12.03	12.21
3074	NYSE	ERF	Wed, Feb 20, 2013	12.54	12.65	12.21	12.35
3073	NYSE	ERF	Tue, Feb 19, 2013	12.61	12.63	12.50	12.61
3072	NYSE	ERF	Fri, Feb 15, 2013	13.07	13.14	12.47	12.60
3071	NYSE	ERF	Thu, Feb 14, 2013	13.33	13.38	13.15	13.19
3070	NYSE	ERF	Wed, Feb 13, 2013	13.25	13.41	13.17	13.30
3069	NYSE	ERF	Tue, Feb 12, 2013	13.23	13.39	13.16	13.24
3068	NYSE	ERF	Mon, Feb 11, 2013	13.50	13.53	13.19	13.23
3067	NYSE	ERF	Fri, Feb 8, 2013	13.52	13.58	13.46	13.53
3066	NYSE	ERF	Thu, Feb 7, 2013	13.67	13.74	13.46	13.51
3065	NYSE	ERF	Wed, Feb 6, 2013	13.49	13.71	13.48	13.70
3064	NYSE	ERF	Tue, Feb 5, 2013	13.13	13.67	13.09	13.60
3063	NYSE	ERF	Mon, Feb 4, 2013	13.15	13.18	12.96	13.08
3062	NYSE	ERF	Fri, Feb 1, 2013	13.45	13.45	13.14	13.20
3061	NYSE	ERF	Thu, Jan 31, 2013	13.50	13.66	13.44	13.45
3060	NYSE	ERF	Wed, Jan 30, 2013	13.51	13.65	13.47	13.51
3059	NYSE	ERF	Tue, Jan 29, 2013	13.44	13.63	13.42	13.52
3058	NYSE	ERF	Mon, Jan 28, 2013	13.34	13.50	13.34	13.39
3057	NYSE	ERF	Fri, Jan 25, 2013	13.46	13.55	13.28	13.34
3056	NYSE	ERF	Thu, Jan 24, 2013	13.40	13.63	13.40	13.45
3055	NYSE	ERF	Wed, Jan 23, 2013	13.49	13.64	13.39	13.40
3054	NYSE	ERF	Tue, Jan 22, 2013	13.42	13.61	13.32	13.60
3053	NYSE	ERF	Fri, Jan 18, 2013	13.30	13.40	13.29	13.35
3052	NYSE	ERF	Thu, Jan 17, 2013	13.35	13.43	13.29	13.32
3051	NYSE	ERF	Wed, Jan 16, 2013	13.26	13.37	13.23	13.28
3050	NYSE	ERF	Tue, Jan 15, 2013	13.07	13.37	13.05	13.29
3049	NYSE	ERF	Mon, Jan 14, 2013	13.13	13.25	13.04	13.13
3048	NYSE	ERF	Fri, Jan 11, 2013	13.20	13.35	13.12	13.16
3047	NYSE	ERF	Thu, Jan 10, 2013	13.34	13.34	13.05	13.19
3046	NYSE	ERF	Wed, Jan 9, 2013	13.44	13.46	13.20	13.26
3045	NYSE	ERF	Tue, Jan 8, 2013	13.55	13.55	13.27	13.44
3044	NYSE	ERF	Mon, Jan 7, 2013	13.70	13.71	13.47	13.57
3043	NYSE	ERF	Fri, Jan 4, 2013	13.45	13.80	13.45	13.73
3042	NYSE	ERF	Thu, Jan 3, 2013	13.36	13.60	13.25	13.45
3041	NYSE	ERF	Wed, Jan 2, 2013	13.22	13.45	13.20	13.36
3040	NYSE	ERF	Mon, Dec 31, 2012	12.43	12.99	12.41	12.96
3039	NYSE	ERF	Fri, Dec 28, 2012	12.48	12.54	12.42	12.51
3038	NYSE	ERF	Thu, Dec 27, 2012	12.60	12.66	12.42	12.56
3037	NYSE	ERF	Wed, Dec 26, 2012	12.79	12.84	12.40	12.51
3036	NYSE	ERF	Mon, Dec 24, 2012	12.85	12.94	12.70	12.74
3035	NYSE	ERF	Fri, Dec 21, 2012	12.78	12.99	12.75	12.86
3034	NYSE	ERF	Thu, Dec 20, 2012	13.15	13.28	12.93	12.99
3033	NYSE	ERF	Wed, Dec 19, 2012	13.11	13.36	13.07	13.12
3032	NYSE	ERF	Tue, Dec 18, 2012	12.80	13.15	12.79	13.09
3031	NYSE	ERF	Mon, Dec 17, 2012	12.75	12.93	12.75	12.85
3030	NYSE	ERF	Fri, Dec 14, 2012	12.84	12.85	12.61	12.74
3029	NYSE	ERF	Thu, Dec 13, 2012	12.98	13.07	12.85	12.94
3028	NYSE	ERF	Wed, Dec 12, 2012	13.32	13.34	12.93	13.08
3027	NYSE	ERF	Tue, Dec 11, 2012	13.22	13.72	13.19	13.33
3026	NYSE	ERF	Mon, Dec 10, 2012	12.96	13.25	12.90	13.24
3025	NYSE	ERF	Fri, Dec 7, 2012	13.07	13.13	12.92	12.96
3024	NYSE	ERF	Thu, Dec 6, 2012	13.24	13.32	12.91	13.00
3023	NYSE	ERF	Wed, Dec 5, 2012	13.08	13.43	13.07	13.33
3022	NYSE	ERF	Tue, Dec 4, 2012	13.19	13.26	13.01	13.08
3021	NYSE	ERF	Mon, Dec 3, 2012	13.31	13.38	13.19	13.25
3020	NYSE	ERF	Fri, Nov 30, 2012	13.19	13.33	13.12	13.28
3019	NYSE	ERF	Thu, Nov 29, 2012	12.94	13.34	12.94	13.19
3018	NYSE	ERF	Wed, Nov 28, 2012	12.65	12.90	12.49	12.87
3017	NYSE	ERF	Tue, Nov 27, 2012	12.83	12.94	12.74	12.74
3016	NYSE	ERF	Mon, Nov 26, 2012	12.99	13.04	12.73	12.88
3015	NYSE	ERF	Fri, Nov 23, 2012	13.03	13.34	12.80	13.07
3014	NYSE	ERF	Wed, Nov 21, 2012	12.53	12.77	12.46	12.57
3013	NYSE	ERF	Tue, Nov 20, 2012	12.71	12.76	12.38	12.54
3012	NYSE	ERF	Mon, Nov 19, 2012	12.38	12.70	12.30	12.67
3011	NYSE	ERF	Fri, Nov 16, 2012	11.77	11.82	11.47	11.80
3010	NYSE	ERF	Thu, Nov 15, 2012	11.92	12.19	11.71	11.81
3009	NYSE	ERF	Wed, Nov 14, 2012	12.29	12.43	11.68	12.04
3008	NYSE	ERF	Tue, Nov 13, 2012	12.35	12.57	12.23	12.29
3007	NYSE	ERF	Mon, Nov 12, 2012	12.67	13.02	12.51	12.56
3006	NYSE	ERF	Fri, Nov 9, 2012	14.37	14.40	12.72	12.84
3005	NYSE	ERF	Thu, Nov 8, 2012	15.27	15.42	14.99	15.01
3004	NYSE	ERF	Wed, Nov 7, 2012	16.01	16.01	15.03	15.33
3003	NYSE	ERF	Tue, Nov 6, 2012	16.17	16.24	16.11	16.18
3002	NYSE	ERF	Mon, Nov 5, 2012	16.07	16.19	16.04	16.12
3001	NYSE	ERF	Fri, Nov 2, 2012	16.32	16.35	16.06	16.09
3000	NYSE	ERF	Thu, Nov 1, 2012	16.13	16.33	16.01	16.20
2999	NYSE	ERF	Wed, Oct 31, 2012	15.97	16.16	15.83	16.08
2998	NYSE	ERF	Fri, Oct 26, 2012	16.01	16.24	15.92	15.96
2997	NYSE	ERF	Thu, Oct 25, 2012	15.92	16.08	15.84	16.05
2996	NYSE	ERF	Wed, Oct 24, 2012	16.18	16.25	15.73	15.77
2995	NYSE	ERF	Tue, Oct 23, 2012	16.34	16.38	16.01	16.09
2994	NYSE	ERF	Mon, Oct 22, 2012	16.55	16.68	16.28	16.55
2993	NYSE	ERF	Fri, Oct 19, 2012	17.05	17.12	16.57	16.76
2992	NYSE	ERF	Thu, Oct 18, 2012	16.96	17.19	16.91	17.17
2991	NYSE	ERF	Wed, Oct 17, 2012	16.47	17.14	16.38	17.10
2990	NYSE	ERF	Tue, Oct 16, 2012	16.32	16.43	16.16	16.36
2989	NYSE	ERF	Mon, Oct 15, 2012	16.28	16.44	16.06	16.26
2988	NYSE	ERF	Fri, Oct 12, 2012	16.60	16.72	16.30	16.33
2987	NYSE	ERF	Thu, Oct 11, 2012	16.25	16.63	16.20	16.54
2986	NYSE	ERF	Wed, Oct 10, 2012	16.22	16.36	16.01	16.04
2985	NYSE	ERF	Tue, Oct 9, 2012	16.39	16.49	16.14	16.25
2984	NYSE	ERF	Mon, Oct 8, 2012	16.45	16.48	16.23	16.34
2983	NYSE	ERF	Fri, Oct 5, 2012	16.94	16.99	16.50	16.55
2982	NYSE	ERF	Thu, Oct 4, 2012	16.84	16.99	16.75	16.93
2981	NYSE	ERF	Wed, Oct 3, 2012	16.81	16.87	16.59	16.72
2980	NYSE	ERF	Tue, Oct 2, 2012	17.03	17.05	16.76	16.82
2979	NYSE	ERF	Mon, Oct 1, 2012	16.65	17.10	16.64	16.90
2978	NYSE	ERF	Fri, Sep 28, 2012	16.58	16.72	16.45	16.61
2977	NYSE	ERF	Thu, Sep 27, 2012	16.30	16.75	16.27	16.64
2976	NYSE	ERF	Wed, Sep 26, 2012	16.34	16.40	15.97	16.13
2975	NYSE	ERF	Tue, Sep 25, 2012	16.66	16.87	16.33	16.38
2974	NYSE	ERF	Mon, Sep 24, 2012	16.89	17.00	16.56	16.68
2973	NYSE	ERF	Fri, Sep 21, 2012	17.06	17.16	16.97	17.02
2972	NYSE	ERF	Thu, Sep 20, 2012	16.94	17.19	16.72	16.96
2971	NYSE	ERF	Wed, Sep 19, 2012	17.07	17.24	17.00	17.05
2970	NYSE	ERF	Tue, Sep 18, 2012	17.20	17.21	16.94	17.10
2969	NYSE	ERF	Mon, Sep 17, 2012	17.14	17.40	16.88	17.20
2968	NYSE	ERF	Fri, Sep 14, 2012	17.04	17.48	17.02	17.15
2967	NYSE	ERF	Thu, Sep 13, 2012	16.60	17.02	16.41	16.88
2966	NYSE	ERF	Wed, Sep 12, 2012	16.82	16.92	16.54	16.59
2965	NYSE	ERF	Tue, Sep 11, 2012	16.44	16.80	16.44	16.78
2964	NYSE	ERF	Mon, Sep 10, 2012	16.37	16.60	16.25	16.31
2963	NYSE	ERF	Fri, Sep 7, 2012	15.96	16.48	15.94	16.41
2962	NYSE	ERF	Thu, Sep 6, 2012	15.86	16.08	15.77	15.86
2961	NYSE	ERF	Wed, Sep 5, 2012	15.73	15.84	15.62	15.73
2960	NYSE	ERF	Tue, Sep 4, 2012	15.77	15.88	15.52	15.80
2959	NYSE	ERF	Fri, Aug 31, 2012	15.64	15.90	15.52	15.77
2958	NYSE	ERF	Thu, Aug 30, 2012	15.88	15.89	15.43	15.51
2957	NYSE	ERF	Wed, Aug 29, 2012	15.80	16.09	15.76	15.87
2956	NYSE	ERF	Tue, Aug 28, 2012	16.05	16.28	15.81	15.82
2955	NYSE	ERF	Mon, Aug 27, 2012	15.69	16.22	15.66	16.03
2954	NYSE	ERF	Fri, Aug 24, 2012	15.82	15.88	15.50	15.68
2953	NYSE	ERF	Thu, Aug 23, 2012	16.14	16.25	15.79	15.85
2952	NYSE	ERF	Wed, Aug 22, 2012	16.11	16.21	15.89	16.13
2951	NYSE	ERF	Tue, Aug 21, 2012	15.84	16.43	15.82	16.17
2950	NYSE	ERF	Mon, Aug 20, 2012	15.53	15.75	15.36	15.55
2949	NYSE	ERF	Fri, Aug 17, 2012	15.28	15.59	15.19	15.48
2948	NYSE	ERF	Thu, Aug 16, 2012	14.78	15.27	14.73	15.20
2947	NYSE	ERF	Wed, Aug 15, 2012	14.87	14.92	14.64	14.80
2946	NYSE	ERF	Tue, Aug 14, 2012	14.54	15.02	14.53	14.85
2945	NYSE	ERF	Mon, Aug 13, 2012	14.28	14.77	14.25	14.61
2944	NYSE	ERF	Fri, Aug 10, 2012	14.44	14.49	14.12	14.21
2943	NYSE	ERF	Thu, Aug 9, 2012	14.20	14.67	14.20	14.53
2942	NYSE	ERF	Wed, Aug 8, 2012	14.54	14.67	14.19	14.30
2941	NYSE	ERF	Tue, Aug 7, 2012	14.39	14.75	14.36	14.62
2940	NYSE	ERF	Mon, Aug 6, 2012	14.06	14.43	14.06	14.30
2939	NYSE	ERF	Fri, Aug 3, 2012	13.84	14.10	13.75	14.06
2938	NYSE	ERF	Thu, Aug 2, 2012	14.10	14.10	13.46	13.50
2937	NYSE	ERF	Wed, Aug 1, 2012	14.10	14.42	14.00	14.22
2936	NYSE	ERF	Tue, Jul 31, 2012	14.11	14.35	14.01	14.02
2935	NYSE	ERF	Mon, Jul 30, 2012	13.98	14.20	13.90	14.06
2934	NYSE	ERF	Fri, Jul 27, 2012	13.76	14.09	13.63	13.99
2933	NYSE	ERF	Thu, Jul 26, 2012	13.60	13.76	13.46	13.67
2932	NYSE	ERF	Wed, Jul 25, 2012	13.45	13.51	13.22	13.39
2931	NYSE	ERF	Tue, Jul 24, 2012	13.60	13.79	13.23	13.41
2930	NYSE	ERF	Mon, Jul 23, 2012	13.52	13.67	13.29	13.61
2929	NYSE	ERF	Fri, Jul 20, 2012	13.83	13.93	13.64	13.90
2928	NYSE	ERF	Thu, Jul 19, 2012	14.02	14.11	13.85	13.94
2927	NYSE	ERF	Wed, Jul 18, 2012	13.18	14.02	13.11	13.86
2926	NYSE	ERF	Tue, Jul 17, 2012	13.05	13.12	12.70	13.09
2925	NYSE	ERF	Mon, Jul 16, 2012	12.91	13.09	12.72	13.02
2924	NYSE	ERF	Fri, Jul 13, 2012	12.72	13.10	12.71	12.93
2923	NYSE	ERF	Thu, Jul 12, 2012	12.88	12.90	12.48	12.69
2922	NYSE	ERF	Wed, Jul 11, 2012	12.60	13.17	12.45	13.11
2921	NYSE	ERF	Tue, Jul 10, 2012	12.81	12.87	12.13	12.26
2920	NYSE	ERF	Mon, Jul 9, 2012	12.95	13.08	12.62	12.67
2919	NYSE	ERF	Fri, Jul 6, 2012	12.91	13.21	12.84	12.97
2918	NYSE	ERF	Thu, Jul 5, 2012	13.34	13.60	13.23	13.26
2917	NYSE	ERF	Tue, Jul 3, 2012	12.89	13.30	12.83	13.13
2916	NYSE	ERF	Mon, Jul 2, 2012	12.80	12.94	12.66	12.84
2915	NYSE	ERF	Fri, Jun 29, 2012	12.93	13.02	12.73	12.87
2914	NYSE	ERF	Thu, Jun 28, 2012	11.69	12.54	11.62	12.51
2913	NYSE	ERF	Wed, Jun 27, 2012	11.61	12.00	11.60	11.87
2912	NYSE	ERF	Tue, Jun 26, 2012	11.61	11.71	11.35	11.54
2911	NYSE	ERF	Mon, Jun 25, 2012	11.84	11.97	11.44	11.61
2910	NYSE	ERF	Fri, Jun 22, 2012	12.01	12.13	11.83	12.04
2909	NYSE	ERF	Thu, Jun 21, 2012	12.69	12.69	11.91	11.93
2908	NYSE	ERF	Wed, Jun 20, 2012	12.81	12.85	12.44	12.73
2907	NYSE	ERF	Tue, Jun 19, 2012	12.43	12.89	12.37	12.79
2906	NYSE	ERF	Mon, Jun 18, 2012	12.42	12.45	12.25	12.36
2905	NYSE	ERF	Fri, Jun 15, 2012	12.68	12.82	12.29	12.53
2904	NYSE	ERF	Thu, Jun 14, 2012	12.65	12.92	12.53	12.66
2903	NYSE	ERF	Wed, Jun 13, 2012	12.66	13.10	12.55	12.65
2902	NYSE	ERF	Tue, Jun 12, 2012	12.93	13.19	12.84	13.16
2901	NYSE	ERF	Mon, Jun 11, 2012	13.30	13.34	12.75	12.78
2900	NYSE	ERF	Fri, Jun 8, 2012	13.52	13.54	13.12	13.13
2899	NYSE	ERF	Thu, Jun 7, 2012	14.40	14.50	13.73	13.77
2898	NYSE	ERF	Wed, Jun 6, 2012	13.83	14.28	13.79	14.12
2897	NYSE	ERF	Tue, Jun 5, 2012	13.26	13.82	13.25	13.80
2896	NYSE	ERF	Mon, Jun 4, 2012	13.43	13.49	13.00	13.26
2895	NYSE	ERF	Fri, Jun 1, 2012	13.57	13.60	13.28	13.36
2894	NYSE	ERF	Thu, May 31, 2012	13.50	13.84	13.27	13.80
2893	NYSE	ERF	Wed, May 30, 2012	13.88	13.90	13.43	13.47
2892	NYSE	ERF	Tue, May 29, 2012	13.94	14.22	13.81	14.01
2891	NYSE	ERF	Fri, May 25, 2012	13.66	13.75	13.57	13.64
2890	NYSE	ERF	Thu, May 24, 2012	14.02	14.07	13.50	13.71
2889	NYSE	ERF	Wed, May 23, 2012	13.87	14.03	13.37	14.03
2888	NYSE	ERF	Tue, May 22, 2012	14.30	14.34	13.90	14.01
2887	NYSE	ERF	Mon, May 21, 2012	13.71	14.27	13.71	14.23
2886	NYSE	ERF	Fri, May 18, 2012	13.92	14.13	13.69	13.71
2885	NYSE	ERF	Thu, May 17, 2012	14.30	14.39	13.82	13.84
2884	NYSE	ERF	Wed, May 16, 2012	14.55	14.89	14.25	14.31
2883	NYSE	ERF	Tue, May 15, 2012	15.30	15.32	14.48	14.52
2882	NYSE	ERF	Mon, May 14, 2012	15.93	15.93	15.33	15.39
2881	NYSE	ERF	Fri, May 11, 2012	16.72	16.90	16.02	16.10
2880	NYSE	ERF	Thu, May 10, 2012	16.91	17.15	16.74	16.82
2879	NYSE	ERF	Wed, May 9, 2012	16.84	17.02	16.55	16.82
2878	NYSE	ERF	Tue, May 8, 2012	17.25	17.31	16.77	17.05
2877	NYSE	ERF	Mon, May 7, 2012	17.52	17.62	17.28	17.51
2876	NYSE	ERF	Fri, May 4, 2012	17.94	18.02	17.58	17.64
2875	NYSE	ERF	Thu, May 3, 2012	18.70	18.74	18.10	18.17
2874	NYSE	ERF	Wed, May 2, 2012	19.05	19.13	18.57	18.74
2873	NYSE	ERF	Tue, May 1, 2012	18.56	19.13	18.42	19.07
2872	NYSE	ERF	Mon, Apr 30, 2012	18.25	18.53	18.07	18.49
2871	NYSE	ERF	Fri, Apr 27, 2012	18.41	18.42	18.08	18.28
2870	NYSE	ERF	Thu, Apr 26, 2012	17.93	18.38	17.84	18.30
2869	NYSE	ERF	Wed, Apr 25, 2012	17.76	17.99	17.45	17.93
2868	NYSE	ERF	Tue, Apr 24, 2012	17.78	17.87	17.60	17.63
2867	NYSE	ERF	Mon, Apr 23, 2012	17.80	18.01	17.58	17.83
2866	NYSE	ERF	Fri, Apr 20, 2012	18.16	18.30	17.96	18.05
2865	NYSE	ERF	Thu, Apr 19, 2012	18.01	18.39	17.82	18.09
2864	NYSE	ERF	Wed, Apr 18, 2012	18.32	18.32	18.00	18.02
2863	NYSE	ERF	Tue, Apr 17, 2012	18.61	18.86	18.40	18.46
2862	NYSE	ERF	Mon, Apr 16, 2012	18.75	18.85	18.33	18.52
2861	NYSE	ERF	Fri, Apr 13, 2012	19.25	19.30	18.72	18.76
2860	NYSE	ERF	Thu, Apr 12, 2012	19.15	19.43	19.11	19.34
2859	NYSE	ERF	Wed, Apr 11, 2012	19.39	19.59	19.04	19.09
2858	NYSE	ERF	Tue, Apr 10, 2012	19.70	19.79	19.06	19.32
2857	NYSE	ERF	Mon, Apr 9, 2012	20.18	20.25	19.70	19.83
2856	NYSE	ERF	Thu, Apr 5, 2012	20.80	20.95	20.37	20.70
2855	NYSE	ERF	Wed, Apr 4, 2012	21.90	21.95	20.97	21.06
2854	NYSE	ERF	Tue, Apr 3, 2012	22.76	22.78	22.10	22.11
2853	NYSE	ERF	Mon, Apr 2, 2012	22.30	22.78	22.30	22.69
2852	NYSE	ERF	Fri, Mar 30, 2012	22.53	22.64	22.33	22.42
2851	NYSE	ERF	Thu, Mar 29, 2012	22.63	22.65	22.20	22.46
2850	NYSE	ERF	Wed, Mar 28, 2012	22.97	23.13	22.55	22.70
2849	NYSE	ERF	Tue, Mar 27, 2012	23.21	23.21	23.03	23.07
2848	NYSE	ERF	Mon, Mar 26, 2012	23.29	23.36	23.08	23.21
2847	NYSE	ERF	Fri, Mar 23, 2012	22.81	23.13	22.72	23.06
2846	NYSE	ERF	Thu, Mar 22, 2012	23.05	23.10	22.66	22.81
2845	NYSE	ERF	Wed, Mar 21, 2012	23.34	23.34	23.13	23.23
2844	NYSE	ERF	Tue, Mar 20, 2012	23.57	23.62	23.16	23.24
2843	NYSE	ERF	Mon, Mar 19, 2012	23.78	23.84	23.48	23.71
2842	NYSE	ERF	Fri, Mar 16, 2012	23.52	23.77	23.46	23.75
2841	NYSE	ERF	Thu, Mar 15, 2012	23.29	23.58	23.12	23.50
2840	NYSE	ERF	Wed, Mar 14, 2012	23.56	23.70	23.14	23.23
2839	NYSE	ERF	Tue, Mar 13, 2012	23.36	23.60	23.25	23.59
2838	NYSE	ERF	Mon, Mar 12, 2012	23.85	23.90	23.31	23.36
2837	NYSE	ERF	Fri, Mar 9, 2012	23.35	23.75	23.31	23.70
2836	NYSE	ERF	Thu, Mar 8, 2012	23.22	23.38	23.13	23.35
2835	NYSE	ERF	Wed, Mar 7, 2012	23.37	23.37	22.98	23.07
2834	NYSE	ERF	Tue, Mar 6, 2012	23.62	23.77	23.15	23.35
2833	NYSE	ERF	Mon, Mar 5, 2012	24.09	24.11	23.75	23.86
2832	NYSE	ERF	Fri, Mar 2, 2012	24.40	24.41	24.04	24.09
2831	NYSE	ERF	Thu, Mar 1, 2012	24.26	24.44	24.17	24.38
2830	NYSE	ERF	Wed, Feb 29, 2012	24.09	24.22	23.87	24.00
2829	NYSE	ERF	Tue, Feb 28, 2012	23.90	24.03	23.71	23.96
2828	NYSE	ERF	Mon, Feb 27, 2012	23.77	23.93	23.72	23.83
2827	NYSE	ERF	Fri, Feb 24, 2012	24.58	24.66	23.77	23.96
2826	NYSE	ERF	Thu, Feb 23, 2012	24.61	24.70	24.47	24.64
2825	NYSE	ERF	Wed, Feb 22, 2012	24.30	24.59	24.30	24.41
2824	NYSE	ERF	Tue, Feb 21, 2012	24.39	24.55	24.28	24.38
2823	NYSE	ERF	Fri, Feb 17, 2012	24.21	24.34	24.01	24.20
2822	NYSE	ERF	Thu, Feb 16, 2012	23.75	24.18	23.72	24.04
2821	NYSE	ERF	Wed, Feb 15, 2012	23.69	23.85	23.59	23.72
2820	NYSE	ERF	Tue, Feb 14, 2012	23.53	23.60	23.40	23.56
2819	NYSE	ERF	Mon, Feb 13, 2012	23.60	23.69	23.35	23.50
2818	NYSE	ERF	Fri, Feb 10, 2012	23.51	23.57	23.28	23.45
2817	NYSE	ERF	Thu, Feb 9, 2012	24.00	24.00	23.58	23.60
2816	NYSE	ERF	Wed, Feb 8, 2012	23.94	24.04	23.72	23.96
2815	NYSE	ERF	Tue, Feb 7, 2012	24.00	24.22	23.83	24.21
2814	NYSE	ERF	Mon, Feb 6, 2012	24.19	24.19	23.83	23.94
2813	NYSE	ERF	Fri, Feb 3, 2012	24.07	24.30	24.01	24.22
2812	NYSE	ERF	Thu, Feb 2, 2012	23.83	24.10	23.80	24.04
2811	NYSE	ERF	Wed, Feb 1, 2012	24.01	24.05	23.74	23.83
2810	NYSE	ERF	Tue, Jan 31, 2012	23.95	24.09	23.55	23.82
2809	NYSE	ERF	Mon, Jan 30, 2012	23.50	23.84	23.49	23.78
2808	NYSE	ERF	Fri, Jan 27, 2012	23.48	23.82	23.45	23.67
2807	NYSE	ERF	Thu, Jan 26, 2012	23.99	24.00	23.36	23.43
2806	NYSE	ERF	Wed, Jan 25, 2012	23.38	23.84	23.20	23.80
2805	NYSE	ERF	Tue, Jan 24, 2012	23.30	23.46	23.14	23.39
2804	NYSE	ERF	Mon, Jan 23, 2012	23.26	23.39	23.24	23.36
2803	NYSE	ERF	Fri, Jan 20, 2012	23.12	23.17	23.07	23.14
2802	NYSE	ERF	Thu, Jan 19, 2012	23.22	23.27	23.15	23.15
2801	NYSE	ERF	Wed, Jan 18, 2012	22.95	23.15	22.85	23.14
2800	NYSE	ERF	Tue, Jan 17, 2012	24.62	24.84	23.38	23.68
2799	NYSE	ERF	Fri, Jan 13, 2012	24.09	24.60	23.96	24.53
2798	NYSE	ERF	Thu, Jan 12, 2012	24.91	24.97	24.18	24.22
2797	NYSE	ERF	Wed, Jan 11, 2012	25.39	25.41	24.77	24.89
2796	NYSE	ERF	Tue, Jan 10, 2012	25.74	25.90	25.45	25.50
2795	NYSE	ERF	Mon, Jan 9, 2012	25.44	25.55	25.07	25.34
2794	NYSE	ERF	Fri, Jan 6, 2012	26.07	26.07	25.37	25.48
2793	NYSE	ERF	Thu, Jan 5, 2012	26.41	26.49	26.01	26.18
2792	NYSE	ERF	Wed, Jan 4, 2012	26.24	26.54	26.12	26.50
2791	NYSE	ERF	Tue, Jan 3, 2012	25.88	26.29	25.79	26.21
2790	NYSE	ERF	Fri, Dec 30, 2011	24.97	25.39	24.97	25.32
2789	NYSE	ERF	Thu, Dec 29, 2011	24.86	25.09	24.75	25.05
2788	NYSE	ERF	Wed, Dec 28, 2011	25.41	25.43	24.75	24.81
2787	NYSE	ERF	Tue, Dec 27, 2011	25.32	25.45	25.20	25.31
2786	NYSE	ERF	Fri, Dec 23, 2011	25.29	25.49	25.29	25.46
2785	NYSE	ERF	Thu, Dec 22, 2011	24.68	25.32	24.60	25.26
2784	NYSE	ERF	Wed, Dec 21, 2011	24.09	24.63	24.00	24.58
2783	NYSE	ERF	Tue, Dec 20, 2011	24.13	24.57	24.07	24.09
2782	NYSE	ERF	Mon, Dec 19, 2011	24.52	24.62	23.76	23.80
2781	NYSE	ERF	Fri, Dec 16, 2011	23.94	24.53	23.89	24.47
2780	NYSE	ERF	Thu, Dec 15, 2011	23.93	24.08	23.66	23.90
2779	NYSE	ERF	Wed, Dec 14, 2011	23.96	24.13	23.51	23.75
2778	NYSE	ERF	Tue, Dec 13, 2011	25.01	25.39	24.11	24.32
2777	NYSE	ERF	Mon, Dec 12, 2011	25.36	25.36	24.60	25.00
2776	NYSE	ERF	Fri, Dec 9, 2011	25.28	25.68	25.12	25.66
2775	NYSE	ERF	Thu, Dec 8, 2011	25.67	25.92	25.06	25.10
2774	NYSE	ERF	Wed, Dec 7, 2011	25.90	26.12	25.70	25.97
2773	NYSE	ERF	Tue, Dec 6, 2011	26.10	26.38	25.87	26.12
2772	NYSE	ERF	Mon, Dec 5, 2011	26.21	26.43	25.82	26.02
2771	NYSE	ERF	Fri, Dec 2, 2011	26.04	26.10	25.73	25.77
2770	NYSE	ERF	Thu, Dec 1, 2011	26.34	26.49	25.67	25.71
2769	NYSE	ERF	Wed, Nov 30, 2011	25.96	26.52	25.91	26.20
2768	NYSE	ERF	Tue, Nov 29, 2011	25.13	25.44	24.93	25.34
2767	NYSE	ERF	Mon, Nov 28, 2011	25.23	25.34	24.86	25.01
2766	NYSE	ERF	Fri, Nov 25, 2011	24.34	24.62	24.18	24.20
2765	NYSE	ERF	Wed, Nov 23, 2011	24.88	24.88	24.26	24.43
2764	NYSE	ERF	Tue, Nov 22, 2011	25.47	25.55	24.78	25.04
2763	NYSE	ERF	Mon, Nov 21, 2011	25.62	25.62	24.89	25.39
2762	NYSE	ERF	Fri, Nov 18, 2011	26.32	26.35	25.87	25.94
2761	NYSE	ERF	Thu, Nov 17, 2011	26.81	26.94	25.96	26.14
2760	NYSE	ERF	Wed, Nov 16, 2011	26.75	27.44	26.67	26.75
2759	NYSE	ERF	Tue, Nov 15, 2011	26.92	27.13	26.61	26.93
2758	NYSE	ERF	Mon, Nov 14, 2011	26.94	27.27	26.75	27.19
2757	NYSE	ERF	Fri, Nov 11, 2011	27.10	27.46	26.87	26.99
2756	NYSE	ERF	Thu, Nov 10, 2011	28.06	28.06	26.67	27.03
2755	NYSE	ERF	Wed, Nov 9, 2011	27.89	28.29	27.63	27.74
2754	NYSE	ERF	Tue, Nov 8, 2011	28.64	28.72	28.25	28.66
2753	NYSE	ERF	Mon, Nov 7, 2011	28.73	28.97	28.53	28.77
2752	NYSE	ERF	Fri, Nov 4, 2011	28.42	28.85	28.12	28.79
2751	NYSE	ERF	Thu, Nov 3, 2011	28.32	28.64	27.84	28.59
2750	NYSE	ERF	Wed, Nov 2, 2011	27.81	28.18	27.68	28.07
2749	NYSE	ERF	Tue, Nov 1, 2011	26.91	27.81	26.60	27.45
2748	NYSE	ERF	Mon, Oct 31, 2011	28.42	28.47	27.82	27.88
2747	NYSE	ERF	Fri, Oct 28, 2011	27.86	28.69	27.86	28.60
2746	NYSE	ERF	Thu, Oct 27, 2011	28.37	28.59	27.90	28.12
2745	NYSE	ERF	Wed, Oct 26, 2011	27.57	27.76	26.94	27.59
2744	NYSE	ERF	Tue, Oct 25, 2011	27.89	27.96	27.06	27.11
2743	NYSE	ERF	Mon, Oct 24, 2011	27.41	27.97	27.35	27.90
2742	NYSE	ERF	Fri, Oct 21, 2011	27.11	27.38	26.78	27.28
2741	NYSE	ERF	Thu, Oct 20, 2011	26.57	26.99	26.15	26.79
2740	NYSE	ERF	Wed, Oct 19, 2011	26.94	27.20	26.48	26.63
2739	NYSE	ERF	Tue, Oct 18, 2011	26.22	27.05	25.68	26.91
2738	NYSE	ERF	Mon, Oct 17, 2011	26.69	26.75	25.98	26.00
2737	NYSE	ERF	Fri, Oct 14, 2011	26.54	26.73	26.26	26.63
2736	NYSE	ERF	Thu, Oct 13, 2011	26.42	26.50	25.77	26.10
2735	NYSE	ERF	Wed, Oct 12, 2011	26.03	26.85	25.92	26.64
2734	NYSE	ERF	Tue, Oct 11, 2011	25.03	25.56	24.92	25.47
2733	NYSE	ERF	Mon, Oct 10, 2011	24.67	25.47	24.67	25.33
2732	NYSE	ERF	Fri, Oct 7, 2011	24.87	24.87	23.84	24.09
2731	NYSE	ERF	Thu, Oct 6, 2011	24.00	24.75	23.68	24.51
2730	NYSE	ERF	Wed, Oct 5, 2011	23.41	24.33	23.09	24.23
2729	NYSE	ERF	Tue, Oct 4, 2011	22.51	23.20	21.65	23.15
2728	NYSE	ERF	Mon, Oct 3, 2011	24.13	24.25	22.95	22.95
2727	NYSE	ERF	Fri, Sep 30, 2011	24.24	24.87	24.15	24.54
2726	NYSE	ERF	Thu, Sep 29, 2011	24.85	25.17	24.30	24.79
2725	NYSE	ERF	Wed, Sep 28, 2011	25.28	25.50	24.50	24.53
2724	NYSE	ERF	Tue, Sep 27, 2011	25.66	26.15	25.14	25.25
2723	NYSE	ERF	Mon, Sep 26, 2011	24.55	25.10	23.92	25.04
2722	NYSE	ERF	Fri, Sep 23, 2011	24.24	24.91	24.06	24.41
2721	NYSE	ERF	Thu, Sep 22, 2011	25.00	25.20	23.94	24.54
2720	NYSE	ERF	Wed, Sep 21, 2011	26.31	26.98	25.87	25.87
2719	NYSE	ERF	Tue, Sep 20, 2011	26.74	27.18	26.42	26.42
2718	NYSE	ERF	Mon, Sep 19, 2011	26.78	27.04	26.28	26.79
2717	NYSE	ERF	Fri, Sep 16, 2011	27.47	27.68	26.94	27.07
2716	NYSE	ERF	Thu, Sep 15, 2011	27.50	27.54	27.13	27.47
2715	NYSE	ERF	Wed, Sep 14, 2011	26.92	27.39	26.50	27.06
2714	NYSE	ERF	Tue, Sep 13, 2011	26.75	26.95	26.45	26.81
2713	NYSE	ERF	Mon, Sep 12, 2011	26.55	26.84	26.08	26.66
2712	NYSE	ERF	Fri, Sep 9, 2011	27.40	27.45	26.69	26.91
2711	NYSE	ERF	Thu, Sep 8, 2011	28.13	28.22	27.66	27.73
2710	NYSE	ERF	Wed, Sep 7, 2011	28.07	28.48	27.86	28.39
2709	NYSE	ERF	Tue, Sep 6, 2011	27.49	27.94	27.14	27.86
2708	NYSE	ERF	Fri, Sep 2, 2011	28.47	28.64	27.99	28.26
2707	NYSE	ERF	Thu, Sep 1, 2011	29.37	29.47	28.89	28.94
2706	NYSE	ERF	Wed, Aug 31, 2011	29.09	29.50	28.90	29.22
2705	NYSE	ERF	Tue, Aug 30, 2011	28.59	29.07	28.29	28.86
2704	NYSE	ERF	Mon, Aug 29, 2011	28.11	28.66	28.00	28.62
2703	NYSE	ERF	Fri, Aug 26, 2011	27.06	27.67	26.52	27.57
2702	NYSE	ERF	Thu, Aug 25, 2011	27.79	27.83	27.00	27.20
2701	NYSE	ERF	Wed, Aug 24, 2011	27.76	28.03	27.38	27.59
2700	NYSE	ERF	Tue, Aug 23, 2011	27.09	27.66	26.48	27.64
2699	NYSE	ERF	Mon, Aug 22, 2011	27.82	27.83	26.40	26.84
2698	NYSE	ERF	Fri, Aug 19, 2011	27.59	28.32	27.08	27.18
2697	NYSE	ERF	Thu, Aug 18, 2011	28.65	28.65	27.74	27.96
2696	NYSE	ERF	Wed, Aug 17, 2011	29.62	30.42	29.51	29.53
2695	NYSE	ERF	Tue, Aug 16, 2011	29.30	29.74	29.07	29.34
2694	NYSE	ERF	Mon, Aug 15, 2011	29.01	29.77	28.94	29.74
2693	NYSE	ERF	Fri, Aug 12, 2011	29.29	29.51	28.44	28.64
2692	NYSE	ERF	Thu, Aug 11, 2011	27.33	29.00	27.15	28.77
2691	NYSE	ERF	Wed, Aug 10, 2011	26.96	28.00	26.55	27.11
2690	NYSE	ERF	Tue, Aug 9, 2011	25.45	27.26	25.22	27.11
2689	NYSE	ERF	Mon, Aug 8, 2011	25.03	25.94	24.43	25.30
2688	NYSE	ERF	Fri, Aug 5, 2011	28.07	28.13	25.64	26.80
2687	NYSE	ERF	Thu, Aug 4, 2011	29.78	29.80	27.59	27.83
2686	NYSE	ERF	Wed, Aug 3, 2011	30.59	30.68	29.62	30.12
2685	NYSE	ERF	Tue, Aug 2, 2011	31.21	31.55	30.60	30.62
2684	NYSE	ERF	Mon, Aug 1, 2011	31.83	31.90	31.23	31.46
2683	NYSE	ERF	Fri, Jul 29, 2011	31.12	31.64	31.12	31.22
2682	NYSE	ERF	Thu, Jul 28, 2011	31.42	31.92	31.29	31.73
2681	NYSE	ERF	Wed, Jul 27, 2011	31.79	31.93	31.29	31.55
2680	NYSE	ERF	Tue, Jul 26, 2011	31.87	32.15	31.75	31.99
2679	NYSE	ERF	Mon, Jul 25, 2011	31.69	32.05	31.61	31.95
2678	NYSE	ERF	Fri, Jul 22, 2011	31.58	31.84	31.44	31.83
2677	NYSE	ERF	Thu, Jul 21, 2011	31.42	31.80	31.38	31.57
2676	NYSE	ERF	Wed, Jul 20, 2011	31.41	31.52	31.14	31.26
2675	NYSE	ERF	Tue, Jul 19, 2011	31.03	31.47	30.98	31.37
2674	NYSE	ERF	Mon, Jul 18, 2011	30.80	31.00	30.52	30.87
2673	NYSE	ERF	Fri, Jul 15, 2011	31.10	31.28	30.94	31.11
2672	NYSE	ERF	Thu, Jul 14, 2011	31.37	31.38	30.64	30.71
2671	NYSE	ERF	Wed, Jul 13, 2011	31.00	31.70	30.91	31.09
2670	NYSE	ERF	Tue, Jul 12, 2011	30.50	31.08	30.50	30.83
2669	NYSE	ERF	Mon, Jul 11, 2011	31.16	31.16	30.46	30.65
2668	NYSE	ERF	Fri, Jul 8, 2011	31.45	31.79	31.37	31.57
2667	NYSE	ERF	Thu, Jul 7, 2011	32.07	32.10	31.73	31.83
2666	NYSE	ERF	Wed, Jul 6, 2011	31.78	31.90	31.34	31.60
2665	NYSE	ERF	Tue, Jul 5, 2011	31.97	32.28	31.89	31.98
2664	NYSE	ERF	Fri, Jul 1, 2011	31.60	31.82	31.31	31.67
2663	NYSE	ERF	Thu, Jun 30, 2011	31.76	32.15	31.53	31.60
2662	NYSE	ERF	Wed, Jun 29, 2011	31.17	31.69	30.95	31.59
2661	NYSE	ERF	Tue, Jun 28, 2011	30.41	30.91	30.39	30.89
2660	NYSE	ERF	Mon, Jun 27, 2011	29.97	30.20	29.80	30.17
2659	NYSE	ERF	Fri, Jun 24, 2011	30.50	30.51	30.03	30.14
2658	NYSE	ERF	Thu, Jun 23, 2011	30.42	30.48	29.75	30.40
2657	NYSE	ERF	Wed, Jun 22, 2011	30.82	31.05	30.71	30.85
2656	NYSE	ERF	Tue, Jun 21, 2011	29.96	31.00	29.93	30.85
2655	NYSE	ERF	Mon, Jun 20, 2011	29.77	30.11	29.61	29.73
2654	NYSE	ERF	Fri, Jun 17, 2011	30.24	30.35	29.78	29.86
2653	NYSE	ERF	Thu, Jun 16, 2011	30.22	30.40	29.77	30.12
2652	NYSE	ERF	Wed, Jun 15, 2011	30.87	31.07	30.20	30.47
2651	NYSE	ERF	Tue, Jun 14, 2011	30.82	31.36	30.67	31.11
2650	NYSE	ERF	Mon, Jun 13, 2011	30.95	30.97	30.06	30.56
2649	NYSE	ERF	Fri, Jun 10, 2011	31.18	31.26	30.76	30.99
2648	NYSE	ERF	Thu, Jun 9, 2011	31.01	31.44	30.86	31.36
2647	NYSE	ERF	Wed, Jun 8, 2011	30.92	31.37	30.76	30.86
2646	NYSE	ERF	Tue, Jun 7, 2011	31.23	31.58	31.00	31.24
2645	NYSE	ERF	Mon, Jun 6, 2011	31.73	31.76	30.96	31.05
2644	NYSE	ERF	Fri, Jun 3, 2011	31.14	31.81	30.97	31.78
2643	NYSE	ERF	Thu, Jun 2, 2011	31.82	32.08	31.25	31.60
2642	NYSE	ERF	Wed, Jun 1, 2011	32.41	32.53	31.73	31.76
2641	NYSE	ERF	Tue, May 31, 2011	32.37	32.49	32.01	32.44
2640	NYSE	ERF	Fri, May 27, 2011	32.15	32.23	31.77	31.98
2639	NYSE	ERF	Thu, May 26, 2011	31.86	31.98	31.55	31.96
2638	NYSE	ERF	Wed, May 25, 2011	31.57	31.98	31.56	31.83
2637	NYSE	ERF	Tue, May 24, 2011	31.62	32.07	31.55	31.73
2636	NYSE	ERF	Mon, May 23, 2011	31.50	31.57	31.22	31.35
2635	NYSE	ERF	Fri, May 20, 2011	31.61	32.10	31.25	31.86
2634	NYSE	ERF	Thu, May 19, 2011	31.78	32.02	31.64	31.80
2633	NYSE	ERF	Wed, May 18, 2011	31.09	31.86	30.99	31.63
2632	NYSE	ERF	Tue, May 17, 2011	30.02	31.45	30.02	31.03
2631	NYSE	ERF	Mon, May 16, 2011	29.84	30.50	29.75	29.97
2630	NYSE	ERF	Fri, May 13, 2011	30.03	30.44	29.85	30.12
2629	NYSE	ERF	Thu, May 12, 2011	30.34	30.45	29.82	30.24
2628	NYSE	ERF	Wed, May 11, 2011	31.34	31.38	30.40	30.64
2627	NYSE	ERF	Tue, May 10, 2011	31.05	31.54	31.05	31.37
2626	NYSE	ERF	Mon, May 9, 2011	30.79	31.30	30.76	31.12
2625	NYSE	ERF	Fri, May 6, 2011	30.27	31.08	30.03	30.66
2624	NYSE	ERF	Thu, May 5, 2011	30.70	30.91	29.68	30.05
2623	NYSE	ERF	Wed, May 4, 2011	32.03	32.11	30.95	31.16
2622	NYSE	ERF	Tue, May 3, 2011	32.47	32.72	31.78	32.18
2621	NYSE	ERF	Mon, May 2, 2011	32.35	32.86	32.25	32.40
2620	NYSE	ERF	Fri, Apr 29, 2011	31.89	32.31	31.71	32.29
2619	NYSE	ERF	Thu, Apr 28, 2011	31.39	31.86	31.18	31.80
2618	NYSE	ERF	Wed, Apr 27, 2011	31.39	31.46	30.87	31.38
2617	NYSE	ERF	Tue, Apr 26, 2011	31.34	31.47	31.18	31.24
2616	NYSE	ERF	Mon, Apr 25, 2011	31.31	31.38	31.06	31.25
2615	NYSE	ERF	Thu, Apr 21, 2011	31.32	31.35	30.93	31.19
2614	NYSE	ERF	Wed, Apr 20, 2011	31.10	31.15	30.78	31.02
2613	NYSE	ERF	Tue, Apr 19, 2011	30.41	30.87	30.38	30.73
2612	NYSE	ERF	Mon, Apr 18, 2011	30.52	30.52	30.05	30.34
2611	NYSE	ERF	Fri, Apr 15, 2011	30.50	31.12	30.46	30.77
2610	NYSE	ERF	Thu, Apr 14, 2011	30.59	30.80	30.40	30.66
2609	NYSE	ERF	Wed, Apr 13, 2011	30.81	31.20	30.54	30.67
2608	NYSE	ERF	Tue, Apr 12, 2011	31.47	31.47	30.13	30.67
2607	NYSE	ERF	Mon, Apr 11, 2011	32.40	32.44	31.58	31.69
2606	NYSE	ERF	Fri, Apr 8, 2011	32.24	32.45	32.18	32.33
2605	NYSE	ERF	Thu, Apr 7, 2011	32.00	32.18	31.93	32.01
2604	NYSE	ERF	Wed, Apr 6, 2011	32.00	32.15	31.87	31.95
2603	NYSE	ERF	Tue, Apr 5, 2011	31.70	32.03	31.65	31.93
2602	NYSE	ERF	Mon, Apr 4, 2011	31.81	31.98	31.75	31.84
2601	NYSE	ERF	Fri, Apr 1, 2011	32.00	32.09	31.70	31.80
2600	NYSE	ERF	Thu, Mar 31, 2011	31.87	32.02	31.59	31.66
2599	NYSE	ERF	Wed, Mar 30, 2011	31.71	31.94	31.58	31.78
2598	NYSE	ERF	Tue, Mar 29, 2011	31.55	31.80	31.30	31.65
2597	NYSE	ERF	Mon, Mar 28, 2011	31.49	31.81	31.35	31.48
2596	NYSE	ERF	Fri, Mar 25, 2011	31.49	31.78	31.44	31.50
2595	NYSE	ERF	Thu, Mar 24, 2011	31.55	31.98	31.51	31.62
2594	NYSE	ERF	Wed, Mar 23, 2011	31.52	31.71	31.26	31.63
2593	NYSE	ERF	Tue, Mar 22, 2011	31.74	31.83	31.35	31.54
2592	NYSE	ERF	Mon, Mar 21, 2011	31.64	31.95	31.45	31.73
2591	NYSE	ERF	Fri, Mar 18, 2011	30.92	31.25	30.85	31.02
2590	NYSE	ERF	Thu, Mar 17, 2011	30.53	30.94	30.28	30.83
2589	NYSE	ERF	Wed, Mar 16, 2011	29.38	30.38	29.33	29.91
2588	NYSE	ERF	Tue, Mar 15, 2011	28.95	29.81	27.75	29.53
2587	NYSE	ERF	Mon, Mar 14, 2011	30.27	30.78	30.12	30.70
2586	NYSE	ERF	Fri, Mar 11, 2011	30.13	30.84	30.02	30.46
2585	NYSE	ERF	Thu, Mar 10, 2011	31.26	31.26	30.14	30.70
2584	NYSE	ERF	Wed, Mar 9, 2011	31.99	32.18	31.25	31.43
2583	NYSE	ERF	Tue, Mar 8, 2011	31.95	32.08	31.50	32.03
2582	NYSE	ERF	Mon, Mar 7, 2011	32.50	32.67	31.84	32.17
2581	NYSE	ERF	Fri, Mar 4, 2011	32.30	32.48	32.15	32.45
2580	NYSE	ERF	Thu, Mar 3, 2011	32.21	32.47	32.02	32.36
2579	NYSE	ERF	Wed, Mar 2, 2011	32.23	32.41	32.04	32.28
2578	NYSE	ERF	Tue, Mar 1, 2011	32.61	32.72	32.15	32.22
2577	NYSE	ERF	Mon, Feb 28, 2011	31.81	32.80	31.77	32.68
2576	NYSE	ERF	Fri, Feb 25, 2011	32.22	32.22	31.31	31.74
2575	NYSE	ERF	Thu, Feb 24, 2011	32.87	32.93	31.77	31.96
2574	NYSE	ERF	Wed, Feb 23, 2011	31.52	32.51	31.44	32.39
2573	NYSE	ERF	Tue, Feb 22, 2011	30.71	31.69	30.70	31.38
2572	NYSE	ERF	Fri, Feb 18, 2011	31.03	31.11	30.50	30.56
2571	NYSE	ERF	Thu, Feb 17, 2011	31.08	31.19	30.90	31.08
2570	NYSE	ERF	Wed, Feb 16, 2011	31.00	31.18	30.82	31.10
2569	NYSE	ERF	Tue, Feb 15, 2011	31.27	31.27	30.70	30.85
2568	NYSE	ERF	Mon, Feb 14, 2011	31.27	31.32	31.02	31.26
2567	NYSE	ERF	Fri, Feb 11, 2011	31.13	31.34	31.02	31.24
2566	NYSE	ERF	Thu, Feb 10, 2011	31.13	31.33	31.02	31.12
2565	NYSE	ERF	Wed, Feb 9, 2011	31.60	31.67	31.00	31.20
2564	NYSE	ERF	Tue, Feb 8, 2011	31.92	32.04	31.60	31.68
2563	NYSE	ERF	Mon, Feb 7, 2011	32.26	32.44	32.03	32.12
2562	NYSE	ERF	Fri, Feb 4, 2011	32.40	32.49	32.04	32.24
2561	NYSE	ERF	Thu, Feb 3, 2011	32.38	32.39	31.94	32.26
2560	NYSE	ERF	Wed, Feb 2, 2011	32.42	32.49	31.99	32.19
2559	NYSE	ERF	Tue, Feb 1, 2011	32.56	32.59	32.18	32.25
2558	NYSE	ERF	Mon, Jan 31, 2011	31.98	32.45	31.90	32.25
2557	NYSE	ERF	Fri, Jan 28, 2011	31.60	31.79	31.36	31.77
2556	NYSE	ERF	Thu, Jan 27, 2011	31.82	32.05	31.46	31.71
2555	NYSE	ERF	Wed, Jan 26, 2011	31.56	31.91	31.25	31.83
2554	NYSE	ERF	Tue, Jan 25, 2011	32.17	32.28	31.18	31.59
2553	NYSE	ERF	Mon, Jan 24, 2011	31.95	32.40	31.56	32.21
2552	NYSE	ERF	Fri, Jan 21, 2011	32.01	32.50	31.65	32.27
2551	NYSE	ERF	Thu, Jan 20, 2011	31.93	31.98	30.78	31.65
2550	NYSE	ERF	Wed, Jan 19, 2011	32.72	32.76	32.05	32.23
2549	NYSE	ERF	Tue, Jan 18, 2011	32.57	33.09	32.55	32.93
2548	NYSE	ERF	Fri, Jan 14, 2011	32.71	32.94	32.29	32.93
2547	NYSE	ERF	Thu, Jan 13, 2011	32.47	32.81	32.11	32.75
2546	NYSE	ERF	Wed, Jan 12, 2011	32.43	33.29	32.37	32.43
2545	NYSE	ERF	Tue, Jan 11, 2011	31.34	32.08	31.26	32.08
2544	NYSE	ERF	Mon, Jan 10, 2011	31.19	31.28	31.01	31.22
2543	NYSE	ERF	Fri, Jan 7, 2011	31.69	31.69	31.10	31.29
2542	NYSE	ERF	Thu, Jan 6, 2011	31.80	31.81	31.38	31.43
2541	NYSE	ERF	Wed, Jan 5, 2011	31.70	31.98	31.46	31.79
2540	NYSE	ERF	Tue, Jan 4, 2011	31.89	31.91	31.19	31.66
2539	NYSE	ERF	Mon, Jan 3, 2011	31.46	31.95	31.31	31.69
2538	NYSE	ERF	Fri, Dec 31, 2010	31.02	31.13	30.69	30.84
2537	NYSE	ERF	Thu, Dec 30, 2010	31.50	31.72	31.05	31.10
2536	NYSE	ERF	Wed, Dec 29, 2010	31.33	31.83	31.33	31.48
2535	NYSE	ERF	Tue, Dec 28, 2010	31.31	31.57	31.21	31.40
2534	NYSE	ERF	Mon, Dec 27, 2010	31.12	31.16	30.90	31.13
2533	NYSE	ERF	Thu, Dec 23, 2010	31.00	31.25	30.90	31.07
2532	NYSE	ERF	Wed, Dec 22, 2010	30.50	30.96	30.42	30.95
2531	NYSE	ERF	Tue, Dec 21, 2010	30.09	30.45	29.75	30.42
2530	NYSE	ERF	Mon, Dec 20, 2010	29.50	30.16	29.34	29.94
2529	NYSE	ERF	Fri, Dec 17, 2010	28.59	29.49	28.31	29.37
2528	NYSE	ERF	Thu, Dec 16, 2010	29.00	29.00	28.19	28.36
2527	NYSE	ERF	Wed, Dec 15, 2010	28.90	29.15	28.81	28.97
2526	NYSE	ERF	Tue, Dec 14, 2010	29.21	29.40	29.01	29.05
2525	NYSE	ERF	Mon, Dec 13, 2010	29.35	29.46	29.03	29.23
2524	NYSE	ERF	Fri, Dec 10, 2010	29.30	29.43	28.76	29.08
2523	NYSE	ERF	Thu, Dec 9, 2010	30.00	30.06	29.45	29.56
2522	NYSE	ERF	Wed, Dec 8, 2010	30.39	30.45	29.66	29.99
2521	NYSE	ERF	Tue, Dec 7, 2010	30.55	30.70	30.34	30.42
2520	NYSE	ERF	Mon, Dec 6, 2010	30.07	30.46	30.03	30.37
2519	NYSE	ERF	Fri, Dec 3, 2010	30.12	30.39	30.06	30.27
2518	NYSE	ERF	Thu, Dec 2, 2010	29.72	30.35	29.66	30.33
2517	NYSE	ERF	Wed, Dec 1, 2010	29.30	29.50	29.06	29.46
2516	NYSE	ERF	Tue, Nov 30, 2010	27.93	28.88	27.82	28.76
2515	NYSE	ERF	Mon, Nov 29, 2010	27.70	28.31	27.56	28.24
2514	NYSE	ERF	Fri, Nov 26, 2010	27.85	28.02	27.65	27.71
2513	NYSE	ERF	Wed, Nov 24, 2010	27.88	28.22	27.88	28.13
2512	NYSE	ERF	Tue, Nov 23, 2010	27.84	28.05	27.50	27.72
2511	NYSE	ERF	Mon, Nov 22, 2010	27.93	28.14	27.57	28.07
2510	NYSE	ERF	Fri, Nov 19, 2010	27.39	27.90	27.22	27.88
2509	NYSE	ERF	Thu, Nov 18, 2010	27.09	27.50	27.04	27.39
2508	NYSE	ERF	Wed, Nov 17, 2010	26.46	26.87	26.32	26.76
2507	NYSE	ERF	Tue, Nov 16, 2010	27.32	27.50	26.18	26.65
2506	NYSE	ERF	Mon, Nov 15, 2010	27.53	27.96	27.49	27.75
2505	NYSE	ERF	Fri, Nov 12, 2010	28.78	28.80	27.51	28.16
2504	NYSE	ERF	Thu, Nov 11, 2010	28.94	29.13	28.79	29.06
2503	NYSE	ERF	Wed, Nov 10, 2010	29.02	29.10	28.30	29.02
2502	NYSE	ERF	Tue, Nov 9, 2010	29.16	29.35	28.75	28.88
2501	NYSE	ERF	Mon, Nov 8, 2010	29.28	29.49	29.11	29.19
2500	NYSE	ERF	Fri, Nov 5, 2010	29.08	29.68	29.08	29.66
2499	NYSE	ERF	Thu, Nov 4, 2010	28.86	29.34	28.85	29.07
2498	NYSE	ERF	Wed, Nov 3, 2010	27.90	28.58	27.78	28.52
2497	NYSE	ERF	Tue, Nov 2, 2010	27.57	27.88	27.48	27.85
2496	NYSE	ERF	Mon, Nov 1, 2010	27.36	27.73	27.26	27.41
2495	NYSE	ERF	Fri, Oct 29, 2010	27.01	27.43	26.96	27.42
2494	NYSE	ERF	Thu, Oct 28, 2010	26.93	27.03	26.74	26.94
2493	NYSE	ERF	Wed, Oct 27, 2010	27.25	27.35	26.71	26.88
2492	NYSE	ERF	Tue, Oct 26, 2010	27.08	27.50	27.00	27.40
2491	NYSE	ERF	Mon, Oct 25, 2010	27.10	27.29	27.00	27.08
2490	NYSE	ERF	Fri, Oct 22, 2010	26.90	27.00	26.73	26.88
2489	NYSE	ERF	Thu, Oct 21, 2010	26.83	27.18	26.68	26.85
2488	NYSE	ERF	Wed, Oct 20, 2010	26.16	26.78	26.16	26.64
2487	NYSE	ERF	Tue, Oct 19, 2010	26.37	26.66	26.07	26.32
2486	NYSE	ERF	Mon, Oct 18, 2010	26.60	26.99	26.37	26.88
2485	NYSE	ERF	Fri, Oct 15, 2010	26.99	27.10	26.59	26.81
2484	NYSE	ERF	Thu, Oct 14, 2010	27.15	27.24	26.72	26.94
2483	NYSE	ERF	Wed, Oct 13, 2010	26.85	27.16	26.77	27.05
2482	NYSE	ERF	Tue, Oct 12, 2010	26.50	26.70	26.18	26.63
2481	NYSE	ERF	Mon, Oct 11, 2010	26.42	26.94	26.33	26.69
2480	NYSE	ERF	Fri, Oct 8, 2010	25.98	26.34	25.80	26.30
2479	NYSE	ERF	Thu, Oct 7, 2010	26.38	26.43	25.77	25.99
2478	NYSE	ERF	Wed, Oct 6, 2010	26.58	26.65	26.25	26.29
2477	NYSE	ERF	Tue, Oct 5, 2010	26.38	26.48	26.21	26.46
2476	NYSE	ERF	Mon, Oct 4, 2010	26.28	26.28	26.07	26.21
2475	NYSE	ERF	Fri, Oct 1, 2010	25.93	26.34	25.85	26.24
2474	NYSE	ERF	Thu, Sep 30, 2010	25.19	25.84	25.13	25.75
2473	NYSE	ERF	Wed, Sep 29, 2010	24.40	25.07	24.38	24.88
2472	NYSE	ERF	Tue, Sep 28, 2010	24.22	24.40	24.02	24.34
2471	NYSE	ERF	Mon, Sep 27, 2010	24.18	24.36	23.97	24.26
2470	NYSE	ERF	Fri, Sep 24, 2010	23.95	24.20	23.76	24.18
2469	NYSE	ERF	Thu, Sep 23, 2010	23.71	23.73	23.51	23.56
2468	NYSE	ERF	Wed, Sep 22, 2010	23.87	24.06	23.50	23.71
2467	NYSE	ERF	Tue, Sep 21, 2010	23.95	24.00	23.64	23.74
2466	NYSE	ERF	Mon, Sep 20, 2010	23.75	23.97	23.73	23.85
2465	NYSE	ERF	Fri, Sep 17, 2010	23.89	23.94	23.62	23.82
2464	NYSE	ERF	Thu, Sep 16, 2010	23.76	23.80	23.50	23.79
2463	NYSE	ERF	Wed, Sep 15, 2010	23.76	23.94	23.73	23.77
2462	NYSE	ERF	Tue, Sep 14, 2010	23.91	24.06	23.80	23.85
2461	NYSE	ERF	Mon, Sep 13, 2010	24.05	24.13	23.69	23.92
2460	NYSE	ERF	Fri, Sep 10, 2010	23.76	23.99	23.69	23.95
2459	NYSE	ERF	Thu, Sep 9, 2010	23.73	23.76	23.42	23.68
2458	NYSE	ERF	Wed, Sep 8, 2010	23.68	23.82	23.42	23.48
2457	NYSE	ERF	Tue, Sep 7, 2010	23.90	23.95	23.63	23.78
2456	NYSE	ERF	Fri, Sep 3, 2010	23.69	24.00	23.65	24.00
2455	NYSE	ERF	Thu, Sep 2, 2010	23.32	23.63	23.24	23.53
2454	NYSE	ERF	Wed, Sep 1, 2010	23.07	23.46	23.00	23.31
2453	NYSE	ERF	Tue, Aug 31, 2010	22.76	22.99	22.55	22.90
2452	NYSE	ERF	Mon, Aug 30, 2010	22.86	22.99	22.71	22.89
2451	NYSE	ERF	Fri, Aug 27, 2010	22.50	22.88	22.11	22.80
2450	NYSE	ERF	Thu, Aug 26, 2010	22.49	22.59	22.12	22.27
2449	NYSE	ERF	Wed, Aug 25, 2010	22.15	22.32	21.65	22.30
2448	NYSE	ERF	Tue, Aug 24, 2010	22.37	22.51	22.18	22.24
2447	NYSE	ERF	Mon, Aug 23, 2010	22.70	22.94	22.60	22.64
2446	NYSE	ERF	Fri, Aug 20, 2010	22.74	22.74	22.40	22.62
2445	NYSE	ERF	Thu, Aug 19, 2010	23.11	23.13	22.65	22.78
2444	NYSE	ERF	Wed, Aug 18, 2010	22.92	23.21	22.73	23.11
2443	NYSE	ERF	Tue, Aug 17, 2010	22.76	23.14	22.67	23.03
2442	NYSE	ERF	Mon, Aug 16, 2010	22.67	22.69	22.39	22.65
2441	NYSE	ERF	Fri, Aug 13, 2010	22.61	22.72	22.34	22.57
2440	NYSE	ERF	Thu, Aug 12, 2010	22.61	22.63	22.27	22.51
2439	NYSE	ERF	Wed, Aug 11, 2010	22.82	22.94	22.41	22.76
2438	NYSE	ERF	Tue, Aug 10, 2010	23.04	23.18	22.85	23.15
2437	NYSE	ERF	Mon, Aug 9, 2010	23.37	23.37	23.00	23.14
2436	NYSE	ERF	Fri, Aug 6, 2010	23.43	23.43	22.93	23.17
2435	NYSE	ERF	Thu, Aug 5, 2010	23.65	23.79	23.55	23.68
2434	NYSE	ERF	Wed, Aug 4, 2010	23.60	23.72	23.45	23.61
2433	NYSE	ERF	Tue, Aug 3, 2010	23.45	23.65	23.35	23.47
2432	NYSE	ERF	Mon, Aug 2, 2010	23.15	23.47	23.11	23.41
2431	NYSE	ERF	Fri, Jul 30, 2010	22.79	23.10	22.67	23.00
2430	NYSE	ERF	Thu, Jul 29, 2010	22.94	23.10	22.61	23.01
2429	NYSE	ERF	Wed, Jul 28, 2010	22.83	22.89	22.55	22.65
2428	NYSE	ERF	Tue, Jul 27, 2010	23.18	23.24	22.68	22.77
2427	NYSE	ERF	Mon, Jul 26, 2010	23.00	23.23	22.90	23.14
2426	NYSE	ERF	Fri, Jul 23, 2010	22.86	22.90	22.60	22.89
2425	NYSE	ERF	Thu, Jul 22, 2010	22.65	22.88	22.65	22.67
2424	NYSE	ERF	Wed, Jul 21, 2010	22.58	22.58	22.16	22.44
2423	NYSE	ERF	Tue, Jul 20, 2010	21.69	22.44	21.51	22.37
2422	NYSE	ERF	Mon, Jul 19, 2010	21.92	21.92	21.57	21.75
2421	NYSE	ERF	Fri, Jul 16, 2010	22.15	22.23	21.76	21.82
2420	NYSE	ERF	Thu, Jul 15, 2010	22.59	22.64	22.05	22.36
2419	NYSE	ERF	Wed, Jul 14, 2010	22.35	22.74	22.30	22.36
2418	NYSE	ERF	Tue, Jul 13, 2010	22.50	22.65	22.39	22.52
2417	NYSE	ERF	Mon, Jul 12, 2010	22.40	22.40	22.00	22.18
2416	NYSE	ERF	Fri, Jul 9, 2010	22.24	22.44	22.18	22.30
2415	NYSE	ERF	Thu, Jul 8, 2010	22.12	22.27	21.86	22.07
2414	NYSE	ERF	Wed, Jul 7, 2010	21.94	22.13	21.73	21.88
2413	NYSE	ERF	Tue, Jul 6, 2010	21.85	22.18	21.71	21.97
2412	NYSE	ERF	Fri, Jul 2, 2010	21.20	21.77	21.20	21.41
2411	NYSE	ERF	Thu, Jul 1, 2010	21.63	21.73	20.90	21.34
2410	NYSE	ERF	Wed, Jun 30, 2010	21.81	22.02	21.52	21.57
2409	NYSE	ERF	Tue, Jun 29, 2010	22.19	22.19	21.69	21.88
2408	NYSE	ERF	Mon, Jun 28, 2010	22.91	22.91	22.47	22.55
2407	NYSE	ERF	Fri, Jun 25, 2010	22.66	22.95	22.50	22.82
2406	NYSE	ERF	Thu, Jun 24, 2010	22.65	22.79	22.34	22.59
2405	NYSE	ERF	Wed, Jun 23, 2010	22.97	22.97	22.48	22.73
2404	NYSE	ERF	Tue, Jun 22, 2010	23.42	23.61	22.85	23.01
2403	NYSE	ERF	Mon, Jun 21, 2010	23.78	23.83	23.17	23.39
2402	NYSE	ERF	Fri, Jun 18, 2010	23.52	23.52	23.24	23.49
2401	NYSE	ERF	Thu, Jun 17, 2010	23.60	23.60	23.08	23.33
2400	NYSE	ERF	Wed, Jun 16, 2010	23.41	23.56	23.16	23.48
2399	NYSE	ERF	Tue, Jun 15, 2010	22.99	23.50	22.99	23.41
2398	NYSE	ERF	Mon, Jun 14, 2010	22.93	23.38	22.79	22.88
2397	NYSE	ERF	Fri, Jun 11, 2010	22.40	22.80	22.20	22.74
2396	NYSE	ERF	Thu, Jun 10, 2010	22.43	22.59	22.15	22.54
2395	NYSE	ERF	Wed, Jun 9, 2010	22.16	22.63	21.91	22.02
2394	NYSE	ERF	Tue, Jun 8, 2010	21.95	22.03	21.43	22.00
2393	NYSE	ERF	Mon, Jun 7, 2010	21.85	22.24	21.81	21.89
2392	NYSE	ERF	Fri, Jun 4, 2010	22.34	22.76	21.74	21.95
2391	NYSE	ERF	Thu, Jun 3, 2010	22.43	22.84	22.09	22.77
2390	NYSE	ERF	Wed, Jun 2, 2010	21.85	22.35	21.54	22.32
2389	NYSE	ERF	Tue, Jun 1, 2010	22.04	22.25	21.40	21.46
2388	NYSE	ERF	Fri, May 28, 2010	21.89	22.20	21.72	22.04
2387	NYSE	ERF	Thu, May 27, 2010	21.44	21.93	21.29	21.78
2386	NYSE	ERF	Wed, May 26, 2010	21.04	21.38	20.80	20.96
2385	NYSE	ERF	Tue, May 25, 2010	20.31	20.73	20.08	20.66
2384	NYSE	ERF	Mon, May 24, 2010	21.14	21.43	20.80	20.87
2383	NYSE	ERF	Fri, May 21, 2010	20.10	21.25	20.10	21.18
2382	NYSE	ERF	Thu, May 20, 2010	21.41	21.47	20.64	20.74
2381	NYSE	ERF	Wed, May 19, 2010	22.01	22.17	21.40	22.15
2380	NYSE	ERF	Tue, May 18, 2010	22.87	23.11	22.12	22.21
2379	NYSE	ERF	Mon, May 17, 2010	22.90	22.90	21.92	22.42
2378	NYSE	ERF	Fri, May 14, 2010	22.91	22.97	22.32	22.76
2377	NYSE	ERF	Thu, May 13, 2010	23.51	23.63	23.11	23.14
2376	NYSE	ERF	Wed, May 12, 2010	23.25	23.65	23.25	23.60
2375	NYSE	ERF	Tue, May 11, 2010	22.77	23.64	22.65	23.18
2374	NYSE	ERF	Mon, May 10, 2010	23.20	23.56	22.76	22.82
2373	NYSE	ERF	Fri, May 7, 2010	21.81	22.58	21.69	22.26
2372	NYSE	ERF	Thu, May 6, 2010	23.20	23.22	13.76	21.76
2371	NYSE	ERF	Wed, May 5, 2010	23.88	23.88	23.22	23.38
2370	NYSE	ERF	Tue, May 4, 2010	24.50	24.53	24.08	24.24
2369	NYSE	ERF	Mon, May 3, 2010	24.51	24.80	24.36	24.78
2368	NYSE	ERF	Fri, Apr 30, 2010	24.43	24.60	24.26	24.35
2367	NYSE	ERF	Thu, Apr 29, 2010	24.49	24.69	24.26	24.36
2366	NYSE	ERF	Wed, Apr 28, 2010	24.19	24.37	23.88	24.21
2365	NYSE	ERF	Tue, Apr 27, 2010	24.74	24.82	24.12	24.16
2364	NYSE	ERF	Mon, Apr 26, 2010	24.60	24.84	24.50	24.81
2363	NYSE	ERF	Fri, Apr 23, 2010	24.44	24.70	24.24	24.63
2362	NYSE	ERF	Thu, Apr 22, 2010	24.25	24.44	23.99	24.42
2361	NYSE	ERF	Wed, Apr 21, 2010	24.24	24.43	24.11	24.37
2360	NYSE	ERF	Tue, Apr 20, 2010	23.77	24.14	23.71	24.14
2359	NYSE	ERF	Mon, Apr 19, 2010	23.30	23.42	23.06	23.41
2358	NYSE	ERF	Fri, Apr 16, 2010	23.79	23.91	23.15	23.53
2357	NYSE	ERF	Thu, Apr 15, 2010	24.07	24.07	23.84	23.93
2356	NYSE	ERF	Wed, Apr 14, 2010	24.04	24.07	23.81	23.99
2355	NYSE	ERF	Tue, Apr 13, 2010	23.82	23.92	23.51	23.83
2354	NYSE	ERF	Mon, Apr 12, 2010	23.94	23.99	23.80	23.83
2353	NYSE	ERF	Fri, Apr 9, 2010	23.90	24.01	23.79	23.82
2352	NYSE	ERF	Thu, Apr 8, 2010	23.97	24.06	23.61	23.90
2351	NYSE	ERF	Wed, Apr 7, 2010	24.25	24.25	23.82	24.00
2350	NYSE	ERF	Tue, Apr 6, 2010	24.49	24.50	24.36	24.44
2349	NYSE	ERF	Mon, Apr 5, 2010	24.16	24.45	24.16	24.44
2348	NYSE	ERF	Thu, Apr 1, 2010	23.91	24.20	23.83	24.13
2347	NYSE	ERF	Wed, Mar 31, 2010	23.39	23.83	23.36	23.71
2346	NYSE	ERF	Tue, Mar 30, 2010	23.22	23.39	23.13	23.32
2345	NYSE	ERF	Mon, Mar 29, 2010	22.99	23.29	22.99	23.25
2344	NYSE	ERF	Fri, Mar 26, 2010	23.14	23.16	22.79	22.95
2343	NYSE	ERF	Thu, Mar 25, 2010	23.46	23.48	23.01	23.06
2342	NYSE	ERF	Wed, Mar 24, 2010	23.36	23.51	23.25	23.25
2341	NYSE	ERF	Tue, Mar 23, 2010	23.31	23.64	23.23	23.64
2340	NYSE	ERF	Mon, Mar 22, 2010	22.77	23.34	22.75	23.23
2339	NYSE	ERF	Fri, Mar 19, 2010	23.35	23.55	23.01	23.08
2338	NYSE	ERF	Thu, Mar 18, 2010	23.65	23.67	23.31	23.38
2337	NYSE	ERF	Wed, Mar 17, 2010	23.70	23.75	23.59	23.63
2336	NYSE	ERF	Tue, Mar 16, 2010	23.51	23.62	23.34	23.57
2335	NYSE	ERF	Mon, Mar 15, 2010	23.56	23.57	23.30	23.40
2334	NYSE	ERF	Fri, Mar 12, 2010	23.64	23.65	23.44	23.54
2333	NYSE	ERF	Thu, Mar 11, 2010	23.34	23.43	23.20	23.42
2332	NYSE	ERF	Wed, Mar 10, 2010	23.15	23.43	23.15	23.37
2331	NYSE	ERF	Tue, Mar 9, 2010	23.10	23.25	23.10	23.24
2330	NYSE	ERF	Mon, Mar 8, 2010	23.42	23.42	23.16	23.27
2329	NYSE	ERF	Fri, Mar 5, 2010	23.33	23.47	23.17	23.33
2328	NYSE	ERF	Thu, Mar 4, 2010	23.22	23.34	23.00	23.11
2327	NYSE	ERF	Wed, Mar 3, 2010	23.14	23.49	23.11	23.21
2326	NYSE	ERF	Tue, Mar 2, 2010	22.90	23.16	22.87	23.04
2325	NYSE	ERF	Mon, Mar 1, 2010	22.69	22.85	22.60	22.79
2324	NYSE	ERF	Fri, Feb 26, 2010	22.02	22.39	21.74	22.32
2323	NYSE	ERF	Thu, Feb 25, 2010	21.76	22.03	21.41	22.03
2322	NYSE	ERF	Wed, Feb 24, 2010	21.71	21.99	21.60	21.98
2321	NYSE	ERF	Tue, Feb 23, 2010	22.10	22.22	21.72	21.72
2320	NYSE	ERF	Mon, Feb 22, 2010	22.40	22.54	22.08	22.19
2319	NYSE	ERF	Fri, Feb 19, 2010	22.42	22.49	22.26	22.30
2318	NYSE	ERF	Thu, Feb 18, 2010	22.37	22.51	22.26	22.43
2317	NYSE	ERF	Wed, Feb 17, 2010	22.16	22.48	22.16	22.27
2316	NYSE	ERF	Tue, Feb 16, 2010	22.07	22.24	21.93	22.20
2315	NYSE	ERF	Fri, Feb 12, 2010	21.47	21.74	21.38	21.68
2314	NYSE	ERF	Thu, Feb 11, 2010	21.54	21.67	21.28	21.67
2313	NYSE	ERF	Wed, Feb 10, 2010	21.14	21.48	21.05	21.35
2312	NYSE	ERF	Tue, Feb 9, 2010	21.15	21.44	21.00	21.15
2311	NYSE	ERF	Mon, Feb 8, 2010	21.49	21.53	21.00	21.00
2310	NYSE	ERF	Fri, Feb 5, 2010	21.52	21.67	20.85	21.41
2309	NYSE	ERF	Thu, Feb 4, 2010	22.10	22.10	21.50	21.63
2308	NYSE	ERF	Wed, Feb 3, 2010	22.51	22.51	22.17	22.34
2307	NYSE	ERF	Tue, Feb 2, 2010	21.97	22.58	21.91	22.50
2306	NYSE	ERF	Mon, Feb 1, 2010	21.51	21.83	21.49	21.83
2305	NYSE	ERF	Fri, Jan 29, 2010	21.27	21.83	21.24	21.29
2304	NYSE	ERF	Thu, Jan 28, 2010	21.90	22.00	21.06	21.15
2303	NYSE	ERF	Wed, Jan 27, 2010	22.25	22.39	21.43	21.71
2302	NYSE	ERF	Tue, Jan 26, 2010	22.48	22.53	22.20	22.35
2301	NYSE	ERF	Mon, Jan 25, 2010	22.31	22.71	22.20	22.56
2300	NYSE	ERF	Fri, Jan 22, 2010	22.68	22.69	22.11	22.16
2299	NYSE	ERF	Thu, Jan 21, 2010	23.30	23.40	22.63	22.70
2298	NYSE	ERF	Wed, Jan 20, 2010	23.45	23.45	23.11	23.38
2297	NYSE	ERF	Tue, Jan 19, 2010	23.68	23.77	23.58	23.75
2296	NYSE	ERF	Fri, Jan 15, 2010	23.67	23.75	23.30	23.69
2295	NYSE	ERF	Thu, Jan 14, 2010	23.57	23.83	23.51	23.64
2294	NYSE	ERF	Wed, Jan 13, 2010	23.46	23.64	23.26	23.59
2293	NYSE	ERF	Tue, Jan 12, 2010	23.84	23.84	23.36	23.45
2292	NYSE	ERF	Mon, Jan 11, 2010	24.24	24.25	23.83	24.00
2291	NYSE	ERF	Fri, Jan 8, 2010	23.72	24.09	23.70	24.01
2290	NYSE	ERF	Thu, Jan 7, 2010	24.00	24.00	23.75	23.82
2289	NYSE	ERF	Wed, Jan 6, 2010	23.71	24.02	23.65	24.01
2288	NYSE	ERF	Tue, Jan 5, 2010	23.65	23.73	23.54	23.64
2287	NYSE	ERF	Mon, Jan 4, 2010	23.26	23.73	23.26	23.58
2286	NYSE	ERF	Thu, Dec 31, 2009	22.91	23.20	22.88	22.96
2285	NYSE	ERF	Wed, Dec 30, 2009	22.94	23.10	22.83	22.98
2284	NYSE	ERF	Tue, Dec 29, 2009	23.31	23.42	23.07	23.10
2283	NYSE	ERF	Mon, Dec 28, 2009	23.07	23.39	23.00	23.36
2282	NYSE	ERF	Thu, Dec 24, 2009	22.97	23.11	22.89	23.03
2281	NYSE	ERF	Wed, Dec 23, 2009	22.73	23.04	22.73	22.89
2280	NYSE	ERF	Tue, Dec 22, 2009	22.53	22.78	22.45	22.70
2279	NYSE	ERF	Mon, Dec 21, 2009	22.64	22.77	22.38	22.52
2278	NYSE	ERF	Fri, Dec 18, 2009	22.37	22.50	22.21	22.42
2277	NYSE	ERF	Thu, Dec 17, 2009	22.40	22.49	22.16	22.25
2276	NYSE	ERF	Wed, Dec 16, 2009	22.52	22.92	22.51	22.58
2275	NYSE	ERF	Tue, Dec 15, 2009	22.30	22.51	22.20	22.40
2274	NYSE	ERF	Mon, Dec 14, 2009	22.57	22.86	22.42	22.51
2273	NYSE	ERF	Fri, Dec 11, 2009	22.66	22.70	22.44	22.52
2272	NYSE	ERF	Thu, Dec 10, 2009	22.39	22.71	22.24	22.68
2271	NYSE	ERF	Wed, Dec 9, 2009	22.39	22.39	21.93	22.23
2270	NYSE	ERF	Tue, Dec 8, 2009	22.77	22.86	22.21	22.25
2269	NYSE	ERF	Mon, Dec 7, 2009	22.75	22.96	22.65	22.84
2268	NYSE	ERF	Fri, Dec 4, 2009	22.98	23.20	22.65	22.78
2267	NYSE	ERF	Thu, Dec 3, 2009	22.88	22.97	22.72	22.74
2266	NYSE	ERF	Wed, Dec 2, 2009	23.06	23.15	22.80	22.85
2265	NYSE	ERF	Tue, Dec 1, 2009	22.97	23.26	22.97	23.06
2264	NYSE	ERF	Mon, Nov 30, 2009	22.81	23.05	22.63	22.91
2263	NYSE	ERF	Fri, Nov 27, 2009	22.52	22.96	22.05	22.74
2262	NYSE	ERF	Wed, Nov 25, 2009	23.30	23.44	23.15	23.38
2261	NYSE	ERF	Tue, Nov 24, 2009	23.06	23.12	22.71	23.12
2260	NYSE	ERF	Mon, Nov 23, 2009	23.20	23.43	22.96	23.02
2259	NYSE	ERF	Fri, Nov 20, 2009	22.83	22.90	22.55	22.79
2258	NYSE	ERF	Thu, Nov 19, 2009	23.03	23.14	22.71	23.01
2257	NYSE	ERF	Wed, Nov 18, 2009	23.40	23.48	22.93	23.08
2256	NYSE	ERF	Tue, Nov 17, 2009	23.17	23.30	22.97	23.27
2255	NYSE	ERF	Mon, Nov 16, 2009	22.93	23.44	22.93	23.16
2254	NYSE	ERF	Fri, Nov 13, 2009	22.41	23.11	22.41	22.98
2253	NYSE	ERF	Thu, Nov 12, 2009	22.93	23.23	22.63	22.77
2252	NYSE	ERF	Wed, Nov 11, 2009	23.22	23.35	23.00	23.07
2251	NYSE	ERF	Tue, Nov 10, 2009	23.24	23.33	22.83	23.05
2250	NYSE	ERF	Mon, Nov 9, 2009	23.14	23.39	23.09	23.20
2249	NYSE	ERF	Fri, Nov 6, 2009	22.79	23.26	22.35	22.70
2248	NYSE	ERF	Thu, Nov 5, 2009	22.74	23.05	22.50	22.94
2247	NYSE	ERF	Wed, Nov 4, 2009	22.59	22.77	22.43	22.50
2246	NYSE	ERF	Tue, Nov 3, 2009	21.61	22.38	21.61	22.33
2245	NYSE	ERF	Mon, Nov 2, 2009	21.90	22.17	21.48	22.02
2244	NYSE	ERF	Fri, Oct 30, 2009	22.80	22.86	21.36	21.72
2243	NYSE	ERF	Thu, Oct 29, 2009	22.54	22.94	22.47	22.84
2242	NYSE	ERF	Wed, Oct 28, 2009	23.23	23.37	22.26	22.26
2241	NYSE	ERF	Tue, Oct 27, 2009	23.21	23.83	23.16	23.45
2240	NYSE	ERF	Mon, Oct 26, 2009	24.10	24.48	23.13	23.26
2239	NYSE	ERF	Fri, Oct 23, 2009	24.09	24.35	23.80	23.96
2238	NYSE	ERF	Thu, Oct 22, 2009	23.77	24.20	23.51	24.19
2237	NYSE	ERF	Wed, Oct 21, 2009	23.60	24.15	23.59	23.66
2236	NYSE	ERF	Tue, Oct 20, 2009	24.41	24.41	23.50	23.78
2235	NYSE	ERF	Mon, Oct 19, 2009	23.97	24.24	23.78	24.10
2234	NYSE	ERF	Fri, Oct 16, 2009	23.89	23.99	23.41	23.89
2233	NYSE	ERF	Thu, Oct 15, 2009	23.94	24.00	23.75	23.95
2232	NYSE	ERF	Wed, Oct 14, 2009	24.30	24.44	23.94	24.10
2231	NYSE	ERF	Tue, Oct 13, 2009	24.02	24.12	23.54	23.96
2230	NYSE	ERF	Mon, Oct 12, 2009	23.55	24.20	23.55	23.84
2229	NYSE	ERF	Fri, Oct 9, 2009	22.81	23.41	22.81	23.31
2228	NYSE	ERF	Thu, Oct 8, 2009	22.62	23.00	22.54	22.97
2227	NYSE	ERF	Wed, Oct 7, 2009	22.86	22.86	22.21	22.51
2226	NYSE	ERF	Tue, Oct 6, 2009	22.79	23.03	22.67	22.83
2225	NYSE	ERF	Mon, Oct 5, 2009	21.86	22.39	21.56	22.38
2224	NYSE	ERF	Fri, Oct 2, 2009	21.74	22.30	21.00	21.76
2223	NYSE	ERF	Thu, Oct 1, 2009	23.13	23.13	21.66	21.90
2222	NYSE	ERF	Wed, Sep 30, 2009	22.95	23.00	22.31	22.89
2221	NYSE	ERF	Tue, Sep 29, 2009	22.53	22.73	22.27	22.69
2220	NYSE	ERF	Mon, Sep 28, 2009	22.17	22.60	22.16	22.47
2219	NYSE	ERF	Fri, Sep 25, 2009	21.92	22.32	21.82	22.10
2218	NYSE	ERF	Thu, Sep 24, 2009	22.90	23.00	21.71	22.05
2217	NYSE	ERF	Wed, Sep 23, 2009	22.82	23.18	22.26	22.75
2216	NYSE	ERF	Tue, Sep 22, 2009	22.50	22.87	22.50	22.82
2215	NYSE	ERF	Mon, Sep 21, 2009	22.15	22.24	21.90	22.19
2214	NYSE	ERF	Fri, Sep 18, 2009	22.70	22.94	22.37	22.55
2213	NYSE	ERF	Thu, Sep 17, 2009	22.98	23.11	22.41	22.75
2212	NYSE	ERF	Wed, Sep 16, 2009	22.59	23.03	22.50	22.94
2211	NYSE	ERF	Tue, Sep 15, 2009	21.89	22.54	21.85	22.41
2210	NYSE	ERF	Mon, Sep 14, 2009	21.25	21.85	21.05	21.78
2209	NYSE	ERF	Fri, Sep 11, 2009	21.07	21.73	21.05	21.32
2208	NYSE	ERF	Thu, Sep 10, 2009	20.99	21.25	20.63	21.21
2207	NYSE	ERF	Wed, Sep 9, 2009	21.05	21.08	20.58	20.85
2206	NYSE	ERF	Tue, Sep 8, 2009	21.30	21.45	20.97	21.09
2205	NYSE	ERF	Fri, Sep 4, 2009	20.45	21.01	20.43	20.95
2204	NYSE	ERF	Thu, Sep 3, 2009	20.50	20.78	20.28	20.36
2203	NYSE	ERF	Wed, Sep 2, 2009	20.59	20.59	20.30	20.46
2202	NYSE	ERF	Tue, Sep 1, 2009	21.04	21.28	20.68	20.70
2201	NYSE	ERF	Mon, Aug 31, 2009	20.80	21.03	20.68	21.01
2200	NYSE	ERF	Fri, Aug 28, 2009	21.16	21.44	21.02	21.16
2199	NYSE	ERF	Thu, Aug 27, 2009	21.08	21.24	20.55	21.07
2198	NYSE	ERF	Wed, Aug 26, 2009	20.84	21.10	20.49	21.09
2197	NYSE	ERF	Tue, Aug 25, 2009	20.97	21.02	20.65	20.81
2196	NYSE	ERF	Mon, Aug 24, 2009	20.79	20.99	20.60	20.83
2195	NYSE	ERF	Fri, Aug 21, 2009	20.24	20.50	20.05	20.49
2194	NYSE	ERF	Thu, Aug 20, 2009	19.91	20.02	19.52	20.01
2193	NYSE	ERF	Wed, Aug 19, 2009	20.27	20.97	20.27	20.60
2192	NYSE	ERF	Tue, Aug 18, 2009	20.33	20.72	20.15	20.69
2191	NYSE	ERF	Mon, Aug 17, 2009	20.77	20.77	20.15	20.20
2190	NYSE	ERF	Fri, Aug 14, 2009	21.55	21.64	20.78	21.14
2189	NYSE	ERF	Thu, Aug 13, 2009	21.41	21.66	21.18	21.50
2188	NYSE	ERF	Wed, Aug 12, 2009	20.88	21.33	20.83	21.17
2187	NYSE	ERF	Tue, Aug 11, 2009	21.35	21.56	20.72	20.97
2186	NYSE	ERF	Mon, Aug 10, 2009	21.35	21.66	21.34	21.60
2185	NYSE	ERF	Fri, Aug 7, 2009	21.90	21.90	21.40	21.52
2184	NYSE	ERF	Thu, Aug 6, 2009	22.08	22.10	21.48	21.67
2183	NYSE	ERF	Wed, Aug 5, 2009	22.37	22.40	21.85	22.13
2182	NYSE	ERF	Tue, Aug 4, 2009	22.46	22.90	22.17	22.35
2181	NYSE	ERF	Mon, Aug 3, 2009	22.07	22.90	22.07	22.75
2180	NYSE	ERF	Fri, Jul 31, 2009	21.19	21.96	21.10	21.80
2179	NYSE	ERF	Thu, Jul 30, 2009	21.27	21.59	21.00	21.23
2178	NYSE	ERF	Wed, Jul 29, 2009	21.00	21.10	20.50	20.79
2177	NYSE	ERF	Tue, Jul 28, 2009	21.01	21.36	20.76	21.32
2176	NYSE	ERF	Mon, Jul 27, 2009	21.44	21.47	20.94	21.30
2175	NYSE	ERF	Fri, Jul 24, 2009	21.46	21.58	21.06	21.38
2174	NYSE	ERF	Thu, Jul 23, 2009	20.91	21.52	20.91	21.32
2173	NYSE	ERF	Wed, Jul 22, 2009	20.62	21.09	20.55	20.87
2172	NYSE	ERF	Tue, Jul 21, 2009	21.42	21.70	20.47	20.85
2171	NYSE	ERF	Mon, Jul 20, 2009	21.46	21.60	20.81	21.22
2170	NYSE	ERF	Fri, Jul 17, 2009	21.29	21.40	20.76	20.94
2169	NYSE	ERF	Thu, Jul 16, 2009	20.16	21.26	20.14	21.11
2168	NYSE	ERF	Wed, Jul 15, 2009	20.24	20.61	20.05	20.41
2167	NYSE	ERF	Tue, Jul 14, 2009	19.63	19.84	19.41	19.67
2166	NYSE	ERF	Mon, Jul 13, 2009	19.10	19.38	18.69	19.25
2165	NYSE	ERF	Fri, Jul 10, 2009	18.92	19.43	18.55	19.24
2164	NYSE	ERF	Thu, Jul 9, 2009	18.66	19.29	18.66	19.09
2163	NYSE	ERF	Wed, Jul 8, 2009	19.71	19.78	18.23	18.54
2162	NYSE	ERF	Tue, Jul 7, 2009	20.44	20.94	19.92	19.99
2161	NYSE	ERF	Mon, Jul 6, 2009	20.37	20.69	20.09	20.62
2160	NYSE	ERF	Thu, Jul 2, 2009	21.32	21.38	20.91	21.21
2159	NYSE	ERF	Wed, Jul 1, 2009	21.67	21.95	21.37	21.44
2158	NYSE	ERF	Tue, Jun 30, 2009	21.29	21.89	21.00	21.49
2157	NYSE	ERF	Mon, Jun 29, 2009	21.28	21.54	21.15	21.52
2156	NYSE	ERF	Fri, Jun 26, 2009	21.00	21.25	20.93	21.13
2155	NYSE	ERF	Thu, Jun 25, 2009	21.03	21.14	20.57	21.04
2154	NYSE	ERF	Wed, Jun 24, 2009	20.70	21.20	20.63	20.85
2153	NYSE	ERF	Tue, Jun 23, 2009	20.16	20.51	19.85	20.30
2152	NYSE	ERF	Mon, Jun 22, 2009	21.00	21.17	19.85	19.97
2151	NYSE	ERF	Fri, Jun 19, 2009	21.27	21.51	21.00	21.18
2150	NYSE	ERF	Thu, Jun 18, 2009	21.49	21.56	20.90	21.11
2149	NYSE	ERF	Wed, Jun 17, 2009	22.28	22.33	21.17	21.48
2148	NYSE	ERF	Tue, Jun 16, 2009	23.59	23.75	22.45	22.54
2147	NYSE	ERF	Mon, Jun 15, 2009	23.48	23.59	22.90	23.04
2146	NYSE	ERF	Fri, Jun 12, 2009	24.20	24.20	23.55	24.03
2145	NYSE	ERF	Thu, Jun 11, 2009	24.29	24.99	24.09	24.58
2144	NYSE	ERF	Wed, Jun 10, 2009	23.89	24.10	23.66	24.07
2143	NYSE	ERF	Tue, Jun 9, 2009	23.74	23.86	23.37	23.62
2142	NYSE	ERF	Mon, Jun 8, 2009	23.33	23.45	22.71	23.28
2141	NYSE	ERF	Fri, Jun 5, 2009	24.13	24.15	23.33	23.65
2140	NYSE	ERF	Thu, Jun 4, 2009	23.48	24.14	23.05	24.01
2139	NYSE	ERF	Wed, Jun 3, 2009	24.04	24.04	22.72	23.07
2138	NYSE	ERF	Tue, Jun 2, 2009	24.69	24.80	24.14	24.29
2137	NYSE	ERF	Mon, Jun 1, 2009	24.40	25.13	24.09	24.66
2136	NYSE	ERF	Fri, May 29, 2009	23.63	24.12	23.36	23.90
2135	NYSE	ERF	Thu, May 28, 2009	22.55	23.13	22.08	23.09
2134	NYSE	ERF	Wed, May 27, 2009	22.83	23.02	22.27	22.37
2133	NYSE	ERF	Tue, May 26, 2009	21.79	22.53	21.73	22.50
2132	NYSE	ERF	Fri, May 22, 2009	22.03	22.44	21.77	21.97
2131	NYSE	ERF	Thu, May 21, 2009	22.39	22.39	21.57	21.83
2130	NYSE	ERF	Wed, May 20, 2009	22.78	23.15	22.37	22.45
2129	NYSE	ERF	Tue, May 19, 2009	22.25	22.75	21.97	22.23
2128	NYSE	ERF	Mon, May 18, 2009	21.10	22.10	21.10	22.03
2127	NYSE	ERF	Fri, May 15, 2009	21.74	21.82	20.60	20.78
2126	NYSE	ERF	Thu, May 14, 2009	21.10	22.04	20.93	21.63
2125	NYSE	ERF	Wed, May 13, 2009	22.57	22.78	21.34	21.38
2124	NYSE	ERF	Tue, May 12, 2009	23.38	23.54	22.64	23.11
2123	NYSE	ERF	Mon, May 11, 2009	23.37	23.37	22.64	22.93
2122	NYSE	ERF	Fri, May 8, 2009	22.41	24.05	22.28	23.64
2121	NYSE	ERF	Thu, May 7, 2009	22.31	22.31	21.45	21.88
2120	NYSE	ERF	Wed, May 6, 2009	21.49	21.98	20.79	21.72
2119	NYSE	ERF	Tue, May 5, 2009	21.28	21.28	20.60	21.16
2118	NYSE	ERF	Mon, May 4, 2009	20.17	21.22	20.01	21.18
2117	NYSE	ERF	Fri, May 1, 2009	19.11	20.00	19.00	20.00
2116	NYSE	ERF	Thu, Apr 30, 2009	19.21	19.99	18.80	18.88
2115	NYSE	ERF	Wed, Apr 29, 2009	18.95	19.37	18.95	19.11
2114	NYSE	ERF	Tue, Apr 28, 2009	18.84	19.10	18.56	18.66
2113	NYSE	ERF	Mon, Apr 27, 2009	19.09	19.71	19.01	19.12
2112	NYSE	ERF	Fri, Apr 24, 2009	19.05	19.95	19.05	19.67
2111	NYSE	ERF	Thu, Apr 23, 2009	18.48	18.91	18.23	18.90
2110	NYSE	ERF	Wed, Apr 22, 2009	17.78	18.49	17.66	18.08
2109	NYSE	ERF	Tue, Apr 21, 2009	17.58	18.41	17.45	17.91
2108	NYSE	ERF	Mon, Apr 20, 2009	18.88	19.24	17.57	17.68
2107	NYSE	ERF	Fri, Apr 17, 2009	19.16	19.49	19.13	19.27
2106	NYSE	ERF	Thu, Apr 16, 2009	19.12	19.19	18.71	19.03
2105	NYSE	ERF	Wed, Apr 15, 2009	18.25	18.90	18.18	18.85
2104	NYSE	ERF	Tue, Apr 14, 2009	18.67	19.02	18.42	18.46
2103	NYSE	ERF	Mon, Apr 13, 2009	18.55	18.90	17.94	18.70
2102	NYSE	ERF	Thu, Apr 9, 2009	18.63	18.79	18.31	18.56
2101	NYSE	ERF	Wed, Apr 8, 2009	17.67	18.35	17.39	18.11
2100	NYSE	ERF	Tue, Apr 7, 2009	18.08	18.31	17.67	17.81
2099	NYSE	ERF	Mon, Apr 6, 2009	18.21	18.68	17.93	18.64
2098	NYSE	ERF	Fri, Apr 3, 2009	18.12	18.55	17.88	18.41
2097	NYSE	ERF	Thu, Apr 2, 2009	18.18	18.71	17.99	18.24
2096	NYSE	ERF	Wed, Apr 1, 2009	16.36	17.34	16.06	17.31
2095	NYSE	ERF	Tue, Mar 31, 2009	16.36	16.65	16.20	16.37
2094	NYSE	ERF	Mon, Mar 30, 2009	16.72	16.82	15.88	16.18
2093	NYSE	ERF	Fri, Mar 27, 2009	17.79	17.79	17.20	17.35
2092	NYSE	ERF	Thu, Mar 26, 2009	18.08	18.16	17.41	18.05
2091	NYSE	ERF	Wed, Mar 25, 2009	17.58	18.16	17.04	17.49
2090	NYSE	ERF	Tue, Mar 24, 2009	17.99	18.20	17.59	17.80
2089	NYSE	ERF	Mon, Mar 23, 2009	17.50	18.23	17.11	18.23
2088	NYSE	ERF	Fri, Mar 20, 2009	17.38	17.52	16.72	16.87
2087	NYSE	ERF	Thu, Mar 19, 2009	17.64	17.96	17.18	17.25
2086	NYSE	ERF	Wed, Mar 18, 2009	16.38	17.09	15.64	16.98
2085	NYSE	ERF	Tue, Mar 17, 2009	15.63	16.44	15.37	16.41
2084	NYSE	ERF	Mon, Mar 16, 2009	15.30	16.38	14.83	15.87
2083	NYSE	ERF	Fri, Mar 13, 2009	15.14	15.54	14.98	15.24
2082	NYSE	ERF	Thu, Mar 12, 2009	13.88	15.14	13.74	15.12
2081	NYSE	ERF	Wed, Mar 11, 2009	14.24	14.42	13.38	13.88
2080	NYSE	ERF	Tue, Mar 10, 2009	13.54	14.49	13.54	14.11
2079	NYSE	ERF	Mon, Mar 9, 2009	13.19	13.59	12.85	13.28
2078	NYSE	ERF	Fri, Mar 6, 2009	13.73	14.00	12.99	13.34
2077	NYSE	ERF	Thu, Mar 5, 2009	14.04	14.22	13.49	13.65
2076	NYSE	ERF	Wed, Mar 4, 2009	14.22	14.52	14.06	14.40
2075	NYSE	ERF	Tue, Mar 3, 2009	14.80	14.99	13.65	13.86
2074	NYSE	ERF	Mon, Mar 2, 2009	16.40	16.40	14.61	14.62
2073	NYSE	ERF	Fri, Feb 27, 2009	16.74	17.53	16.21	16.83
2072	NYSE	ERF	Thu, Feb 26, 2009	17.05	17.63	16.87	17.19
2071	NYSE	ERF	Wed, Feb 25, 2009	16.50	16.94	15.84	16.67
2070	NYSE	ERF	Tue, Feb 24, 2009	15.34	16.38	14.85	16.25
2069	NYSE	ERF	Mon, Feb 23, 2009	16.94	17.00	15.31	15.38
2068	NYSE	ERF	Fri, Feb 20, 2009	17.30	17.47	16.11	16.87
2067	NYSE	ERF	Thu, Feb 19, 2009	18.03	18.04	17.51	17.57
2066	NYSE	ERF	Wed, Feb 18, 2009	18.54	18.54	17.25	17.46
2065	NYSE	ERF	Tue, Feb 17, 2009	19.25	19.25	18.12	18.18
2064	NYSE	ERF	Fri, Feb 13, 2009	19.38	19.75	19.28	19.50
2063	NYSE	ERF	Thu, Feb 12, 2009	19.31	19.31	18.16	19.25
2062	NYSE	ERF	Wed, Feb 11, 2009	19.87	20.00	19.15	19.32
2061	NYSE	ERF	Tue, Feb 10, 2009	21.19	21.19	19.37	19.70
2060	NYSE	ERF	Mon, Feb 9, 2009	20.82	21.56	20.54	20.84
2059	NYSE	ERF	Fri, Feb 6, 2009	20.50	21.18	20.22	20.96
2058	NYSE	ERF	Thu, Feb 5, 2009	20.84	21.05	20.24	20.89
2057	NYSE	ERF	Wed, Feb 4, 2009	20.78	21.16	20.50	20.74
2056	NYSE	ERF	Tue, Feb 3, 2009	20.58	20.58	20.00	20.47
2055	NYSE	ERF	Mon, Feb 2, 2009	20.23	20.58	19.85	20.22
2054	NYSE	ERF	Fri, Jan 30, 2009	21.75	22.00	20.49	20.66
2053	NYSE	ERF	Thu, Jan 29, 2009	22.40	22.55	21.64	21.85
2052	NYSE	ERF	Wed, Jan 28, 2009	22.85	22.85	22.25	22.65
2051	NYSE	ERF	Tue, Jan 27, 2009	22.39	22.63	22.00	22.42
2050	NYSE	ERF	Mon, Jan 26, 2009	21.56	22.80	21.56	22.09
2049	NYSE	ERF	Fri, Jan 23, 2009	20.54	21.99	20.34	21.78
2048	NYSE	ERF	Thu, Jan 22, 2009	21.56	21.68	20.76	20.92
2047	NYSE	ERF	Wed, Jan 21, 2009	20.97	21.99	20.51	21.89
2046	NYSE	ERF	Tue, Jan 20, 2009	22.05	22.05	20.76	20.90
2045	NYSE	ERF	Fri, Jan 16, 2009	22.40	22.50	21.56	22.11
2044	NYSE	ERF	Thu, Jan 15, 2009	21.67	21.73	20.50	21.58
2043	NYSE	ERF	Wed, Jan 14, 2009	21.74	21.74	21.13	21.42
2042	NYSE	ERF	Tue, Jan 13, 2009	20.10	22.02	20.03	21.91
2041	NYSE	ERF	Mon, Jan 12, 2009	20.99	21.00	20.13	20.63
2040	NYSE	ERF	Fri, Jan 9, 2009	22.41	22.41	21.19	21.25
2039	NYSE	ERF	Thu, Jan 8, 2009	21.81	22.46	21.69	22.30
2038	NYSE	ERF	Wed, Jan 7, 2009	23.27	23.27	21.76	22.14
2037	NYSE	ERF	Tue, Jan 6, 2009	22.43	23.66	22.06	23.42
2036	NYSE	ERF	Mon, Jan 5, 2009	21.22	22.50	21.20	21.64
2035	NYSE	ERF	Fri, Jan 2, 2009	19.74	21.18	19.60	20.93
2034	NYSE	ERF	Wed, Dec 31, 2008	18.71	19.75	18.71	19.58
2033	NYSE	ERF	Tue, Dec 30, 2008	19.12	19.23	18.60	18.93
2032	NYSE	ERF	Mon, Dec 29, 2008	18.52	19.08	18.43	18.98
2031	NYSE	ERF	Fri, Dec 26, 2008	17.96	18.54	17.96	18.43
2030	NYSE	ERF	Wed, Dec 24, 2008	18.21	18.39	18.00	18.28
2029	NYSE	ERF	Tue, Dec 23, 2008	17.96	18.48	17.70	18.35
2028	NYSE	ERF	Mon, Dec 22, 2008	18.82	19.19	17.82	18.05
2027	NYSE	ERF	Fri, Dec 19, 2008	18.47	19.23	18.30	18.67
2026	NYSE	ERF	Thu, Dec 18, 2008	19.51	20.00	18.50	18.81
2025	NYSE	ERF	Wed, Dec 17, 2008	20.16	20.66	20.06	20.10
2024	NYSE	ERF	Tue, Dec 16, 2008	20.40	20.74	19.80	20.72
2023	NYSE	ERF	Mon, Dec 15, 2008	20.59	20.91	19.55	20.04
2022	NYSE	ERF	Fri, Dec 12, 2008	18.73	20.21	18.51	20.17
2021	NYSE	ERF	Thu, Dec 11, 2008	20.55	21.09	19.09	19.53
2020	NYSE	ERF	Wed, Dec 10, 2008	19.36	20.00	18.84	19.99
2019	NYSE	ERF	Tue, Dec 9, 2008	18.74	19.38	18.59	18.97
2018	NYSE	ERF	Mon, Dec 8, 2008	18.81	19.54	18.32	19.18
2017	NYSE	ERF	Fri, Dec 5, 2008	18.22	18.79	17.27	18.38
2016	NYSE	ERF	Thu, Dec 4, 2008	21.57	21.57	18.50	18.96
2015	NYSE	ERF	Wed, Dec 3, 2008	20.81	21.82	20.40	21.58
2014	NYSE	ERF	Tue, Dec 2, 2008	21.32	21.64	20.44	21.25
2013	NYSE	ERF	Mon, Dec 1, 2008	22.86	23.30	20.38	20.44
2012	NYSE	ERF	Fri, Nov 28, 2008	23.10	23.24	21.92	23.19
2011	NYSE	ERF	Wed, Nov 26, 2008	21.84	23.22	21.07	22.99
2010	NYSE	ERF	Tue, Nov 25, 2008	21.00	21.70	20.27	21.64
2009	NYSE	ERF	Mon, Nov 24, 2008	19.04	20.86	18.90	20.53
2008	NYSE	ERF	Fri, Nov 21, 2008	18.81	19.68	17.07	18.57
2007	NYSE	ERF	Thu, Nov 20, 2008	20.79	20.79	18.20	18.35
2006	NYSE	ERF	Wed, Nov 19, 2008	23.05	23.23	21.00	21.12
2005	NYSE	ERF	Tue, Nov 18, 2008	23.51	23.55	22.17	23.20
2004	NYSE	ERF	Mon, Nov 17, 2008	22.66	23.93	21.75	23.14
2003	NYSE	ERF	Fri, Nov 14, 2008	23.07	23.59	22.03	22.30
2002	NYSE	ERF	Thu, Nov 13, 2008	21.07	23.50	20.05	23.41
2001	NYSE	ERF	Wed, Nov 12, 2008	23.00	23.00	21.08	21.36
2000	NYSE	ERF	Tue, Nov 11, 2008	23.64	24.07	22.80	23.46
1999	NYSE	ERF	Mon, Nov 10, 2008	25.12	25.51	24.02	24.42
1998	NYSE	ERF	Fri, Nov 7, 2008	25.07	25.73	24.08	24.61
1997	NYSE	ERF	Thu, Nov 6, 2008	26.01	26.57	24.22	25.06
1996	NYSE	ERF	Wed, Nov 5, 2008	27.32	28.08	26.33	26.52
1995	NYSE	ERF	Tue, Nov 4, 2008	26.69	28.58	26.62	27.91
1994	NYSE	ERF	Mon, Nov 3, 2008	26.30	26.93	25.77	26.30
1993	NYSE	ERF	Fri, Oct 31, 2008	24.55	27.03	24.01	26.71
1992	NYSE	ERF	Thu, Oct 30, 2008	26.08	26.57	24.29	25.54
1991	NYSE	ERF	Wed, Oct 29, 2008	22.74	25.27	22.38	24.49
1990	NYSE	ERF	Tue, Oct 28, 2008	21.12	22.03	20.26	22.03
1989	NYSE	ERF	Mon, Oct 27, 2008	21.60	22.05	20.55	20.67
1988	NYSE	ERF	Fri, Oct 24, 2008	20.55	22.32	20.25	22.07
1987	NYSE	ERF	Thu, Oct 23, 2008	22.95	23.75	21.50	22.83
1986	NYSE	ERF	Wed, Oct 22, 2008	25.00	25.00	22.20	22.92
1985	NYSE	ERF	Tue, Oct 21, 2008	27.09	27.47	26.00	26.10
1984	NYSE	ERF	Mon, Oct 20, 2008	25.22	27.57	24.89	27.56
1983	NYSE	ERF	Fri, Oct 17, 2008	23.98	26.00	23.00	24.04
1982	NYSE	ERF	Thu, Oct 16, 2008	22.31	23.96	21.33	23.87
1981	NYSE	ERF	Wed, Oct 15, 2008	24.78	24.78	21.89	22.40
1980	NYSE	ERF	Tue, Oct 14, 2008	28.67	30.00	24.76	25.96
1979	NYSE	ERF	Mon, Oct 13, 2008	25.11	26.92	23.75	26.67
1978	NYSE	ERF	Fri, Oct 10, 2008	21.37	23.50	20.50	22.69
1977	NYSE	ERF	Thu, Oct 9, 2008	26.31	27.70	23.33	23.88
1976	NYSE	ERF	Wed, Oct 8, 2008	26.01	26.90	21.29	25.83
1975	NYSE	ERF	Tue, Oct 7, 2008	31.40	31.71	28.11	28.30
1974	NYSE	ERF	Mon, Oct 6, 2008	33.00	33.25	28.02	30.20
1973	NYSE	ERF	Fri, Oct 3, 2008	34.48	36.20	33.60	33.78
1972	NYSE	ERF	Thu, Oct 2, 2008	36.70	36.70	34.41	34.78
1971	NYSE	ERF	Wed, Oct 1, 2008	37.02	37.48	35.86	37.03
1970	NYSE	ERF	Tue, Sep 30, 2008	35.60	37.20	35.50	37.19
1969	NYSE	ERF	Mon, Sep 29, 2008	37.24	37.24	34.14	35.43
1968	NYSE	ERF	Fri, Sep 26, 2008	37.51	38.41	36.39	37.67
1967	NYSE	ERF	Thu, Sep 25, 2008	38.50	39.19	37.99	38.50
1966	NYSE	ERF	Wed, Sep 24, 2008	39.10	39.57	38.39	38.55
1965	NYSE	ERF	Tue, Sep 23, 2008	39.53	40.48	38.06	38.69
1964	NYSE	ERF	Mon, Sep 22, 2008	38.85	40.83	38.50	40.20
1963	NYSE	ERF	Fri, Sep 19, 2008	37.51	39.91	36.55	38.14
1962	NYSE	ERF	Thu, Sep 18, 2008	35.00	36.99	34.98	36.45
1961	NYSE	ERF	Wed, Sep 17, 2008	35.29	35.53	34.02	34.55
1960	NYSE	ERF	Tue, Sep 16, 2008	35.14	35.47	33.64	35.14
1959	NYSE	ERF	Mon, Sep 15, 2008	36.16	36.99	35.75	36.11
1958	NYSE	ERF	Fri, Sep 12, 2008	36.37	37.96	36.37	37.62
1957	NYSE	ERF	Thu, Sep 11, 2008	37.95	37.95	35.85	36.35
1956	NYSE	ERF	Wed, Sep 10, 2008	36.86	37.84	36.54	37.62
1955	NYSE	ERF	Tue, Sep 9, 2008	39.32	39.80	36.03	36.52
1954	NYSE	ERF	Mon, Sep 8, 2008	41.48	41.49	39.50	39.60
1953	NYSE	ERF	Fri, Sep 5, 2008	41.20	41.55	40.17	41.43
1952	NYSE	ERF	Thu, Sep 4, 2008	41.15	41.60	40.33	41.25
1951	NYSE	ERF	Wed, Sep 3, 2008	41.89	42.02	40.60	41.24
1950	NYSE	ERF	Tue, Sep 2, 2008	42.42	42.42	41.44	41.91
1949	NYSE	ERF	Fri, Aug 29, 2008	42.29	43.46	42.29	43.29
1948	NYSE	ERF	Thu, Aug 28, 2008	42.85	43.23	41.77	42.35
1947	NYSE	ERF	Wed, Aug 27, 2008	42.01	42.48	41.92	42.44
1946	NYSE	ERF	Tue, Aug 26, 2008	40.98	41.72	40.89	41.67
1945	NYSE	ERF	Mon, Aug 25, 2008	41.00	41.24	40.48	40.87
1944	NYSE	ERF	Fri, Aug 22, 2008	41.42	41.42	40.35	40.98
1943	NYSE	ERF	Thu, Aug 21, 2008	41.73	42.20	41.58	41.74
1942	NYSE	ERF	Wed, Aug 20, 2008	39.79	41.35	39.56	41.07
1941	NYSE	ERF	Tue, Aug 19, 2008	38.93	39.81	38.64	39.35
1940	NYSE	ERF	Mon, Aug 18, 2008	38.90	39.36	38.31	38.78
1939	NYSE	ERF	Fri, Aug 15, 2008	39.50	39.50	38.66	38.95
1938	NYSE	ERF	Thu, Aug 14, 2008	39.99	40.21	39.05	39.56
1937	NYSE	ERF	Wed, Aug 13, 2008	39.38	40.12	38.39	39.84
1936	NYSE	ERF	Tue, Aug 12, 2008	38.80	39.22	38.61	39.14
1935	NYSE	ERF	Mon, Aug 11, 2008	39.64	39.64	37.61	38.54
1934	NYSE	ERF	Fri, Aug 8, 2008	39.99	39.99	39.17	39.40
1933	NYSE	ERF	Thu, Aug 7, 2008	40.41	40.65	39.77	39.99
1932	NYSE	ERF	Wed, Aug 6, 2008	39.58	40.13	39.10	39.87
1931	NYSE	ERF	Tue, Aug 5, 2008	39.53	40.32	39.19	39.64
1930	NYSE	ERF	Mon, Aug 4, 2008	41.68	41.68	39.50	39.85
1929	NYSE	ERF	Fri, Aug 1, 2008	40.94	41.99	40.94	41.43
1928	NYSE	ERF	Thu, Jul 31, 2008	41.80	41.80	40.52	41.16
1927	NYSE	ERF	Wed, Jul 30, 2008	39.85	42.00	39.58	41.73
1926	NYSE	ERF	Tue, Jul 29, 2008	40.26	40.48	39.50	39.80
1925	NYSE	ERF	Mon, Jul 28, 2008	40.25	40.66	39.90	40.24
1924	NYSE	ERF	Fri, Jul 25, 2008	40.51	40.51	39.17	39.86
1923	NYSE	ERF	Thu, Jul 24, 2008	39.79	40.48	39.43	39.82
1922	NYSE	ERF	Wed, Jul 23, 2008	41.27	41.40	39.68	39.81
1921	NYSE	ERF	Tue, Jul 22, 2008	42.24	42.35	40.92	41.45
1920	NYSE	ERF	Mon, Jul 21, 2008	41.32	42.65	40.75	42.39
1919	NYSE	ERF	Fri, Jul 18, 2008	40.35	41.98	40.28	41.05
1918	NYSE	ERF	Thu, Jul 17, 2008	41.69	41.74	39.37	40.44
1917	NYSE	ERF	Wed, Jul 16, 2008	42.01	42.04	40.41	41.22
1916	NYSE	ERF	Tue, Jul 15, 2008	43.37	43.60	41.81	42.04
1915	NYSE	ERF	Mon, Jul 14, 2008	43.90	44.50	43.21	43.60
1914	NYSE	ERF	Fri, Jul 11, 2008	44.25	45.14	43.36	43.87
1913	NYSE	ERF	Thu, Jul 10, 2008	42.85	43.91	42.40	43.87
1912	NYSE	ERF	Wed, Jul 9, 2008	42.22	44.33	42.22	42.44
1911	NYSE	ERF	Tue, Jul 8, 2008	42.51	42.66	40.41	41.76
1910	NYSE	ERF	Mon, Jul 7, 2008	44.90	44.93	42.67	43.62
1909	NYSE	ERF	Thu, Jul 3, 2008	46.30	46.36	44.72	45.10
1908	NYSE	ERF	Wed, Jul 2, 2008	46.80	47.47	46.22	46.36
1907	NYSE	ERF	Tue, Jul 1, 2008	46.20	46.95	46.10	46.79
1906	NYSE	ERF	Mon, Jun 30, 2008	46.88	47.50	46.10	46.24
1905	NYSE	ERF	Fri, Jun 27, 2008	46.74	47.10	46.37	46.88
1904	NYSE	ERF	Thu, Jun 26, 2008	47.09	47.38	45.93	46.46
1903	NYSE	ERF	Wed, Jun 25, 2008	47.01	47.01	45.64	46.81
1902	NYSE	ERF	Tue, Jun 24, 2008	47.00	47.46	46.58	46.70
1901	NYSE	ERF	Mon, Jun 23, 2008	45.69	47.24	45.69	47.19
1900	NYSE	ERF	Fri, Jun 20, 2008	46.28	46.58	45.51	45.69
1899	NYSE	ERF	Thu, Jun 19, 2008	47.52	47.55	45.80	45.99
1898	NYSE	ERF	Wed, Jun 18, 2008	47.60	47.70	46.94	47.20
1897	NYSE	ERF	Tue, Jun 17, 2008	46.60	47.50	46.47	47.49
1896	NYSE	ERF	Mon, Jun 16, 2008	46.22	46.94	46.22	46.64
1895	NYSE	ERF	Fri, Jun 13, 2008	46.50	46.63	45.72	46.00
1894	NYSE	ERF	Thu, Jun 12, 2008	46.51	46.83	46.05	46.54
1893	NYSE	ERF	Wed, Jun 11, 2008	46.36	46.91	46.15	46.90
1892	NYSE	ERF	Tue, Jun 10, 2008	46.66	47.11	45.80	46.14
1891	NYSE	ERF	Mon, Jun 9, 2008	47.58	47.58	46.60	46.94
1890	NYSE	ERF	Fri, Jun 6, 2008	47.78	48.17	47.03	47.29
1889	NYSE	ERF	Thu, Jun 5, 2008	46.31	47.70	46.27	47.67
1888	NYSE	ERF	Wed, Jun 4, 2008	46.71	46.71	46.05	46.21
1887	NYSE	ERF	Tue, Jun 3, 2008	47.11	47.16	46.44	46.59
1886	NYSE	ERF	Mon, Jun 2, 2008	46.84	47.42	46.05	47.11
1885	NYSE	ERF	Fri, May 30, 2008	46.32	47.23	46.00	46.84
1884	NYSE	ERF	Thu, May 29, 2008	47.30	47.35	46.08	46.22
1883	NYSE	ERF	Wed, May 28, 2008	47.12	47.41	46.50	47.41
1882	NYSE	ERF	Tue, May 27, 2008	48.31	48.31	46.94	47.42
1881	NYSE	ERF	Fri, May 23, 2008	49.20	49.50	47.90	48.32
1880	NYSE	ERF	Thu, May 22, 2008	49.47	49.99	48.25	48.92
1879	NYSE	ERF	Wed, May 21, 2008	49.22	50.63	49.22	49.47
1878	NYSE	ERF	Tue, May 20, 2008	49.08	49.40	48.63	49.08
1877	NYSE	ERF	Mon, May 19, 2008	48.77	49.00	48.47	48.65
1876	NYSE	ERF	Fri, May 16, 2008	48.00	48.74	48.00	48.64
1875	NYSE	ERF	Thu, May 15, 2008	47.62	48.06	47.03	47.80
1874	NYSE	ERF	Wed, May 14, 2008	47.46	47.68	46.95	47.02
1873	NYSE	ERF	Tue, May 13, 2008	47.20	47.46	46.63	47.33
1872	NYSE	ERF	Mon, May 12, 2008	47.56	47.60	47.00	47.12
1871	NYSE	ERF	Fri, May 9, 2008	47.51	48.02	47.20	47.93
1870	NYSE	ERF	Thu, May 8, 2008	47.75	47.78	46.88	47.51
1869	NYSE	ERF	Wed, May 7, 2008	48.29	48.29	47.01	47.64
1868	NYSE	ERF	Tue, May 6, 2008	46.99	48.49	46.81	48.23
1867	NYSE	ERF	Mon, May 5, 2008	45.85	46.82	45.66	46.67
1866	NYSE	ERF	Fri, May 2, 2008	44.81	45.98	44.35	45.85
1865	NYSE	ERF	Thu, May 1, 2008	44.90	44.90	43.70	44.73
1864	NYSE	ERF	Wed, Apr 30, 2008	45.46	45.53	44.60	44.90
1863	NYSE	ERF	Tue, Apr 29, 2008	45.50	46.17	45.03	45.18
1862	NYSE	ERF	Mon, Apr 28, 2008	45.55	46.50	45.55	46.18
1861	NYSE	ERF	Fri, Apr 25, 2008	44.75	45.55	44.47	45.23
1860	NYSE	ERF	Thu, Apr 24, 2008	45.92	45.92	44.33	44.59
1859	NYSE	ERF	Wed, Apr 23, 2008	46.45	46.45	45.48	46.25
1858	NYSE	ERF	Tue, Apr 22, 2008	46.25	47.10	45.80	46.45
1857	NYSE	ERF	Mon, Apr 21, 2008	46.04	46.26	45.75	46.24
1856	NYSE	ERF	Fri, Apr 18, 2008	46.00	46.42	45.50	45.90
1855	NYSE	ERF	Thu, Apr 17, 2008	45.15	45.61	44.97	45.47
1854	NYSE	ERF	Wed, Apr 16, 2008	44.50	45.21	44.50	45.15
1853	NYSE	ERF	Tue, Apr 15, 2008	44.50	45.10	44.11	44.26
1852	NYSE	ERF	Mon, Apr 14, 2008	44.22	44.47	43.91	44.37
1851	NYSE	ERF	Fri, Apr 11, 2008	44.42	44.42	43.53	43.85
1850	NYSE	ERF	Thu, Apr 10, 2008	44.37	44.41	43.83	44.35
1849	NYSE	ERF	Wed, Apr 9, 2008	43.85	44.28	43.64	44.01
1848	NYSE	ERF	Tue, Apr 8, 2008	44.19	44.31	43.71	44.01
1847	NYSE	ERF	Mon, Apr 7, 2008	44.70	45.25	44.54	44.84
1846	NYSE	ERF	Fri, Apr 4, 2008	44.24	44.62	44.20	44.51
1845	NYSE	ERF	Thu, Apr 3, 2008	43.35	44.14	43.11	43.95
1844	NYSE	ERF	Wed, Apr 2, 2008	42.56	43.50	42.56	43.46
1843	NYSE	ERF	Tue, Apr 1, 2008	43.51	43.51	42.41	42.83
1842	NYSE	ERF	Mon, Mar 31, 2008	42.49	43.51	42.49	43.40
1841	NYSE	ERF	Fri, Mar 28, 2008	43.21	43.35	42.58	42.71
1840	NYSE	ERF	Thu, Mar 27, 2008	43.00	43.42	42.50	42.83
1839	NYSE	ERF	Wed, Mar 26, 2008	41.99	42.90	41.70	42.49
1838	NYSE	ERF	Tue, Mar 25, 2008	42.43	42.43	41.20	41.69
1837	NYSE	ERF	Mon, Mar 24, 2008	40.13	41.36	39.90	40.95
1836	NYSE	ERF	Thu, Mar 20, 2008	40.49	40.51	39.16	40.21
1835	NYSE	ERF	Wed, Mar 19, 2008	42.50	42.74	40.57	40.68
1834	NYSE	ERF	Tue, Mar 18, 2008	42.80	42.91	42.10	42.77
1833	NYSE	ERF	Mon, Mar 17, 2008	42.90	43.31	41.42	42.31
1832	NYSE	ERF	Fri, Mar 14, 2008	44.02	44.02	42.76	43.44
1831	NYSE	ERF	Thu, Mar 13, 2008	43.51	43.84	42.93	43.70
1830	NYSE	ERF	Wed, Mar 12, 2008	43.40	44.02	43.19	43.54
1829	NYSE	ERF	Tue, Mar 11, 2008	42.50	43.32	42.49	43.31
1828	NYSE	ERF	Mon, Mar 10, 2008	43.03	43.24	42.03	42.34
1827	NYSE	ERF	Fri, Mar 7, 2008	43.07	43.55	42.75	43.24
1826	NYSE	ERF	Thu, Mar 6, 2008	43.99	44.10	43.36	43.44
1825	NYSE	ERF	Wed, Mar 5, 2008	43.71	44.31	43.18	44.31
1824	NYSE	ERF	Tue, Mar 4, 2008	43.23	43.64	42.47	43.15
1823	NYSE	ERF	Mon, Mar 3, 2008	42.66	44.19	42.66	43.24
1822	NYSE	ERF	Fri, Feb 29, 2008	42.83	43.07	42.46	43.06
1821	NYSE	ERF	Thu, Feb 28, 2008	42.90	43.46	42.90	43.15
1820	NYSE	ERF	Wed, Feb 27, 2008	42.75	43.37	42.68	42.95
1819	NYSE	ERF	Tue, Feb 26, 2008	42.84	42.99	42.25	42.76
1818	NYSE	ERF	Mon, Feb 25, 2008	41.83	42.92	41.73	42.53
1817	NYSE	ERF	Fri, Feb 22, 2008	41.58	41.87	41.03	41.20
1816	NYSE	ERF	Thu, Feb 21, 2008	42.67	42.67	41.41	41.58
1815	NYSE	ERF	Wed, Feb 20, 2008	41.76	42.61	41.76	42.51
1814	NYSE	ERF	Tue, Feb 19, 2008	41.65	42.62	41.55	41.86
1813	NYSE	ERF	Fri, Feb 15, 2008	40.68	41.29	40.31	41.13
1812	NYSE	ERF	Thu, Feb 14, 2008	40.48	40.75	40.13	40.30
1811	NYSE	ERF	Wed, Feb 13, 2008	39.64	40.42	39.64	40.33
1810	NYSE	ERF	Tue, Feb 12, 2008	39.60	40.33	39.48	39.74
1809	NYSE	ERF	Mon, Feb 11, 2008	38.67	39.75	38.66	39.72
1808	NYSE	ERF	Fri, Feb 8, 2008	38.40	39.09	38.40	38.66
1807	NYSE	ERF	Thu, Feb 7, 2008	38.52	38.66	38.11	38.38
1806	NYSE	ERF	Wed, Feb 6, 2008	39.87	39.87	38.32	38.52
1805	NYSE	ERF	Tue, Feb 5, 2008	40.76	40.76	39.53	39.70
1804	NYSE	ERF	Mon, Feb 4, 2008	39.76	40.97	39.76	40.78
1803	NYSE	ERF	Fri, Feb 1, 2008	39.00	39.83	38.90	39.74
1802	NYSE	ERF	Thu, Jan 31, 2008	38.51	38.94	37.90	38.58
1801	NYSE	ERF	Wed, Jan 30, 2008	38.47	39.09	38.29	38.41
1800	NYSE	ERF	Tue, Jan 29, 2008	38.66	38.75	37.81	38.22
1799	NYSE	ERF	Mon, Jan 28, 2008	37.25	38.43	36.81	38.34
1798	NYSE	ERF	Fri, Jan 25, 2008	37.79	37.83	36.86	37.24
1797	NYSE	ERF	Thu, Jan 24, 2008	36.50	37.51	36.40	37.08
1796	NYSE	ERF	Wed, Jan 23, 2008	36.00	36.33	34.90	36.25
1795	NYSE	ERF	Tue, Jan 22, 2008	35.24	36.49	32.59	36.20
1794	NYSE	ERF	Fri, Jan 18, 2008	37.83	38.37	36.62	37.20
1793	NYSE	ERF	Thu, Jan 17, 2008	38.97	39.49	37.70	37.75
1792	NYSE	ERF	Wed, Jan 16, 2008	39.14	39.59	38.66	38.78
1791	NYSE	ERF	Tue, Jan 15, 2008	40.47	40.47	39.31	39.60
1790	NYSE	ERF	Mon, Jan 14, 2008	39.50	40.38	39.50	40.22
1789	NYSE	ERF	Fri, Jan 11, 2008	39.11	39.65	39.00	39.39
1788	NYSE	ERF	Thu, Jan 10, 2008	39.12	39.42	38.50	39.42
1787	NYSE	ERF	Wed, Jan 9, 2008	39.47	39.47	38.50	38.98
1786	NYSE	ERF	Tue, Jan 8, 2008	39.49	39.83	39.10	39.23
1785	NYSE	ERF	Mon, Jan 7, 2008	40.76	40.76	39.25	39.47
1784	NYSE	ERF	Fri, Jan 4, 2008	41.08	41.08	39.92	40.07
1783	NYSE	ERF	Thu, Jan 3, 2008	41.02	41.45	40.54	40.92
1782	NYSE	ERF	Wed, Jan 2, 2008	40.44	40.69	39.92	40.54
1781	NYSE	ERF	Mon, Dec 31, 2007	40.42	40.80	40.00	40.05
1780	NYSE	ERF	Fri, Dec 28, 2007	40.49	41.12	40.47	40.74
1779	NYSE	ERF	Thu, Dec 27, 2007	41.25	41.25	40.30	40.66
1778	NYSE	ERF	Wed, Dec 26, 2007	39.42	41.35	39.42	41.25
1777	NYSE	ERF	Mon, Dec 24, 2007	38.87	39.50	38.72	39.42
1776	NYSE	ERF	Fri, Dec 21, 2007	38.67	39.17	38.27	38.95
1775	NYSE	ERF	Thu, Dec 20, 2007	38.94	39.27	38.68	38.88
1774	NYSE	ERF	Wed, Dec 19, 2007	39.34	39.37	38.84	39.07
1773	NYSE	ERF	Tue, Dec 18, 2007	39.51	39.58	38.69	38.99
1772	NYSE	ERF	Mon, Dec 17, 2007	38.60	39.65	38.60	39.42
1771	NYSE	ERF	Fri, Dec 14, 2007	38.58	38.91	38.14	38.85
1770	NYSE	ERF	Thu, Dec 13, 2007	38.69	38.69	38.15	38.18
1769	NYSE	ERF	Wed, Dec 12, 2007	38.98	38.98	38.15	38.50
1768	NYSE	ERF	Tue, Dec 11, 2007	38.45	38.67	38.06	38.19
1767	NYSE	ERF	Mon, Dec 10, 2007	39.00	39.04	38.40	38.43
1766	NYSE	ERF	Fri, Dec 7, 2007	39.00	39.23	38.70	38.83
1765	NYSE	ERF	Thu, Dec 6, 2007	38.93	39.08	38.47	38.98
1764	NYSE	ERF	Wed, Dec 5, 2007	39.42	39.60	39.02	39.25
1763	NYSE	ERF	Tue, Dec 4, 2007	39.91	39.91	39.03	39.21
1762	NYSE	ERF	Mon, Dec 3, 2007	41.25	41.25	39.76	39.89
1761	NYSE	ERF	Fri, Nov 30, 2007	40.77	41.19	40.57	40.87
1760	NYSE	ERF	Thu, Nov 29, 2007	41.13	41.13	40.41	40.65
1759	NYSE	ERF	Wed, Nov 28, 2007	40.24	41.29	40.24	41.04
1758	NYSE	ERF	Tue, Nov 27, 2007	40.44	40.69	39.40	40.48
1757	NYSE	ERF	Mon, Nov 26, 2007	40.70	41.30	40.15	40.20
1756	NYSE	ERF	Fri, Nov 23, 2007	40.63	41.02	40.63	40.87
1755	NYSE	ERF	Wed, Nov 21, 2007	40.96	41.57	40.70	40.86
1754	NYSE	ERF	Tue, Nov 20, 2007	40.89	42.00	40.89	41.66
1753	NYSE	ERF	Mon, Nov 19, 2007	41.50	41.50	40.71	40.96
1752	NYSE	ERF	Fri, Nov 16, 2007	42.08	42.08	41.30	41.44
1751	NYSE	ERF	Thu, Nov 15, 2007	42.50	42.57	41.04	41.58
1750	NYSE	ERF	Wed, Nov 14, 2007	42.86	43.64	42.33	42.54
1749	NYSE	ERF	Tue, Nov 13, 2007	41.12	42.33	41.12	42.22
1748	NYSE	ERF	Mon, Nov 12, 2007	44.47	44.47	41.50	41.98
1747	NYSE	ERF	Fri, Nov 9, 2007	47.11	47.11	43.93	44.47
1746	NYSE	ERF	Thu, Nov 8, 2007	47.50	47.93	46.42	46.98
1745	NYSE	ERF	Wed, Nov 7, 2007	48.79	48.79	47.60	47.80
1744	NYSE	ERF	Tue, Nov 6, 2007	49.00	49.19	48.83	49.15
1743	NYSE	ERF	Mon, Nov 5, 2007	48.71	48.71	48.04	48.65
1742	NYSE	ERF	Fri, Nov 2, 2007	48.88	49.01	48.06	48.59
1741	NYSE	ERF	Thu, Nov 1, 2007	48.00	48.74	47.59	48.06
1740	NYSE	ERF	Wed, Oct 31, 2007	46.99	48.57	46.93	48.38
1739	NYSE	ERF	Tue, Oct 30, 2007	46.79	47.10	46.35	46.75
1738	NYSE	ERF	Mon, Oct 29, 2007	47.35	47.57	47.01	47.25
1737	NYSE	ERF	Fri, Oct 26, 2007	46.88	47.21	46.55	47.03
1736	NYSE	ERF	Thu, Oct 25, 2007	47.00	47.24	46.77	47.00
1735	NYSE	ERF	Wed, Oct 24, 2007	46.50	47.00	45.90	46.89
1734	NYSE	ERF	Tue, Oct 23, 2007	46.22	46.50	45.87	46.50
1733	NYSE	ERF	Mon, Oct 22, 2007	45.66	45.66	44.88	45.64
1732	NYSE	ERF	Fri, Oct 19, 2007	46.64	46.81	46.13	46.17
1731	NYSE	ERF	Thu, Oct 18, 2007	45.74	46.75	45.65	46.70
1730	NYSE	ERF	Wed, Oct 17, 2007	45.99	46.38	45.55	45.81
1729	NYSE	ERF	Tue, Oct 16, 2007	46.20	46.22	45.39	45.51
1728	NYSE	ERF	Mon, Oct 15, 2007	46.64	46.75	45.84	46.17
1727	NYSE	ERF	Fri, Oct 12, 2007	46.60	46.87	46.15	46.25
1726	NYSE	ERF	Thu, Oct 11, 2007	46.68	47.07	46.05	46.26
1725	NYSE	ERF	Wed, Oct 10, 2007	46.07	46.56	46.07	46.37
1724	NYSE	ERF	Tue, Oct 9, 2007	46.29	46.41	45.56	46.30
1723	NYSE	ERF	Mon, Oct 8, 2007	46.80	46.98	46.06	46.25
1722	NYSE	ERF	Fri, Oct 5, 2007	47.53	47.64	46.75	47.10
1721	NYSE	ERF	Thu, Oct 4, 2007	47.13	47.47	46.26	47.08
1720	NYSE	ERF	Wed, Oct 3, 2007	47.49	47.50	46.86	46.90
1719	NYSE	ERF	Tue, Oct 2, 2007	47.46	47.50	46.95	47.23
1718	NYSE	ERF	Mon, Oct 1, 2007	47.37	47.57	47.10	47.45
1717	NYSE	ERF	Fri, Sep 28, 2007	47.39	47.68	47.10	47.20
1716	NYSE	ERF	Thu, Sep 27, 2007	47.20	47.38	46.72	46.95
1715	NYSE	ERF	Wed, Sep 26, 2007	46.94	47.38	46.37	46.70
1714	NYSE	ERF	Tue, Sep 25, 2007	45.90	46.98	45.50	46.98
1713	NYSE	ERF	Mon, Sep 24, 2007	45.50	46.95	45.30	45.79
1712	NYSE	ERF	Fri, Sep 21, 2007	45.63	45.93	45.28	45.45
1711	NYSE	ERF	Thu, Sep 20, 2007	45.12	45.46	44.71	45.26
1710	NYSE	ERF	Wed, Sep 19, 2007	44.63	45.12	44.30	44.90
1709	NYSE	ERF	Tue, Sep 18, 2007	44.97	45.38	44.62	45.03
1708	NYSE	ERF	Mon, Sep 17, 2007	44.72	45.00	44.57	44.79
1707	NYSE	ERF	Fri, Sep 14, 2007	44.48	45.38	44.48	44.86
1706	NYSE	ERF	Thu, Sep 13, 2007	44.87	44.99	44.31	44.76
1705	NYSE	ERF	Wed, Sep 12, 2007	43.73	44.66	43.59	44.55
1704	NYSE	ERF	Tue, Sep 11, 2007	43.32	43.60	43.11	43.37
1703	NYSE	ERF	Mon, Sep 10, 2007	42.90	43.14	42.31	42.99
1702	NYSE	ERF	Fri, Sep 7, 2007	43.00	43.29	42.48	42.97
1701	NYSE	ERF	Thu, Sep 6, 2007	43.30	43.95	43.12	43.61
1700	NYSE	ERF	Wed, Sep 5, 2007	42.91	43.68	42.90	43.22
1699	NYSE	ERF	Tue, Sep 4, 2007	42.65	43.46	42.20	43.26
1698	NYSE	ERF	Fri, Aug 31, 2007	41.99	42.41	41.57	42.11
1697	NYSE	ERF	Thu, Aug 30, 2007	40.59	41.69	40.59	41.16
1696	NYSE	ERF	Wed, Aug 29, 2007	40.05	41.00	40.00	40.92
1695	NYSE	ERF	Tue, Aug 28, 2007	40.56	40.80	39.97	39.97
1694	NYSE	ERF	Mon, Aug 27, 2007	41.40	41.46	40.75	40.80
1693	NYSE	ERF	Fri, Aug 24, 2007	41.18	41.58	41.00	41.20
1692	NYSE	ERF	Thu, Aug 23, 2007	40.89	41.14	40.45	40.78
1691	NYSE	ERF	Wed, Aug 22, 2007	40.85	41.38	40.19	40.29
1690	NYSE	ERF	Tue, Aug 21, 2007	41.90	42.14	40.39	40.65
1689	NYSE	ERF	Mon, Aug 20, 2007	41.48	41.87	40.91	41.80
1688	NYSE	ERF	Fri, Aug 17, 2007	41.70	42.23	40.70	41.32
1687	NYSE	ERF	Thu, Aug 16, 2007	40.94	40.94	38.10	40.44
1686	NYSE	ERF	Wed, Aug 15, 2007	41.73	42.31	41.15	41.39
1685	NYSE	ERF	Tue, Aug 14, 2007	43.04	43.04	41.55	41.71
1684	NYSE	ERF	Mon, Aug 13, 2007	43.79	43.79	42.69	43.05
1683	NYSE	ERF	Fri, Aug 10, 2007	42.07	43.44	41.71	43.31
1682	NYSE	ERF	Thu, Aug 9, 2007	42.50	43.49	42.02	42.36
1681	NYSE	ERF	Wed, Aug 8, 2007	42.28	43.43	42.04	43.05
1680	NYSE	ERF	Tue, Aug 7, 2007	42.19	43.18	41.95	42.26
1679	NYSE	ERF	Mon, Aug 6, 2007	43.40	43.57	40.60	42.69
1678	NYSE	ERF	Fri, Aug 3, 2007	43.92	44.44	43.37	43.43
1677	NYSE	ERF	Thu, Aug 2, 2007	44.90	44.90	43.40	43.95
1676	NYSE	ERF	Wed, Aug 1, 2007	43.84	44.48	42.80	44.37
1675	NYSE	ERF	Tue, Jul 31, 2007	44.21	44.53	43.52	43.83
1674	NYSE	ERF	Mon, Jul 30, 2007	44.85	44.91	43.05	43.41
1673	NYSE	ERF	Fri, Jul 27, 2007	45.03	45.43	44.45	44.84
1672	NYSE	ERF	Thu, Jul 26, 2007	45.94	45.94	44.69	45.17
1671	NYSE	ERF	Wed, Jul 25, 2007	44.67	45.99	44.39	45.94
1670	NYSE	ERF	Tue, Jul 24, 2007	46.66	46.66	44.49	44.56
1669	NYSE	ERF	Mon, Jul 23, 2007	47.37	47.45	46.50	46.54
1668	NYSE	ERF	Fri, Jul 20, 2007	47.53	47.53	47.06	47.29
1667	NYSE	ERF	Thu, Jul 19, 2007	47.65	47.65	47.21	47.42
1666	NYSE	ERF	Wed, Jul 18, 2007	47.58	48.88	47.20	48.25
1665	NYSE	ERF	Tue, Jul 17, 2007	46.49	47.17	46.49	46.73
1664	NYSE	ERF	Mon, Jul 16, 2007	46.80	46.97	46.38	46.49
1663	NYSE	ERF	Fri, Jul 13, 2007	47.15	47.23	46.80	46.87
1662	NYSE	ERF	Thu, Jul 12, 2007	47.10	47.37	46.91	47.08
1661	NYSE	ERF	Wed, Jul 11, 2007	47.07	47.37	46.82	47.05
1660	NYSE	ERF	Tue, Jul 10, 2007	47.50	47.84	47.30	47.36
1659	NYSE	ERF	Mon, Jul 9, 2007	47.50	48.05	47.27	47.80
1658	NYSE	ERF	Fri, Jul 6, 2007	48.20	48.37	47.45	47.52
1657	NYSE	ERF	Thu, Jul 5, 2007	48.10	48.96	47.88	48.55
1656	NYSE	ERF	Tue, Jul 3, 2007	48.00	48.40	47.66	47.84
1655	NYSE	ERF	Mon, Jul 2, 2007	47.35	47.79	47.16	47.66
1654	NYSE	ERF	Fri, Jun 29, 2007	47.09	47.39	46.80	47.08
1653	NYSE	ERF	Thu, Jun 28, 2007	46.95	47.10	46.13	46.77
1652	NYSE	ERF	Wed, Jun 27, 2007	45.25	46.40	44.29	46.37
1651	NYSE	ERF	Tue, Jun 26, 2007	46.68	46.94	45.33	45.69
1650	NYSE	ERF	Mon, Jun 25, 2007	46.99	47.14	46.50	46.54
1649	NYSE	ERF	Fri, Jun 22, 2007	47.32	47.71	47.05	47.21
1648	NYSE	ERF	Thu, Jun 21, 2007	47.15	47.57	47.11	47.42
1647	NYSE	ERF	Wed, Jun 20, 2007	47.65	47.86	47.00	47.00
1646	NYSE	ERF	Tue, Jun 19, 2007	47.29	47.59	47.02	47.50
1645	NYSE	ERF	Mon, Jun 18, 2007	47.26	47.30	47.01	47.28
1644	NYSE	ERF	Fri, Jun 15, 2007	47.15	47.49	46.97	47.32
1643	NYSE	ERF	Thu, Jun 14, 2007	47.25	47.51	46.73	47.06
1642	NYSE	ERF	Wed, Jun 13, 2007	47.33	47.61	46.67	47.16
1641	NYSE	ERF	Tue, Jun 12, 2007	48.03	48.13	47.31	47.36
1640	NYSE	ERF	Mon, Jun 11, 2007	48.03	48.61	48.00	48.49
1639	NYSE	ERF	Fri, Jun 8, 2007	48.00	48.45	47.02	48.08
1638	NYSE	ERF	Thu, Jun 7, 2007	49.12	49.60	47.73	48.15
1637	NYSE	ERF	Wed, Jun 6, 2007	50.04	50.04	49.07	49.07
1636	NYSE	ERF	Tue, Jun 5, 2007	50.52	50.61	50.00	50.23
1635	NYSE	ERF	Mon, Jun 4, 2007	49.97	50.75	49.94	50.40
1634	NYSE	ERF	Fri, Jun 1, 2007	49.03	50.11	48.86	49.91
1633	NYSE	ERF	Thu, May 31, 2007	48.50	48.99	48.20	48.84
1632	NYSE	ERF	Wed, May 30, 2007	47.57	48.45	47.54	48.45
1631	NYSE	ERF	Tue, May 29, 2007	47.89	48.04	47.72	47.85
1630	NYSE	ERF	Fri, May 25, 2007	48.01	48.21	46.81	47.76
1629	NYSE	ERF	Thu, May 24, 2007	48.99	48.99	47.75	47.96
1628	NYSE	ERF	Wed, May 23, 2007	48.20	48.84	48.18	48.77
1627	NYSE	ERF	Tue, May 22, 2007	47.84	48.09	47.57	48.08
1626	NYSE	ERF	Mon, May 21, 2007	47.20	48.17	47.20	47.94
1625	NYSE	ERF	Fri, May 18, 2007	46.71	48.21	46.71	47.20
1624	NYSE	ERF	Thu, May 17, 2007	46.30	47.15	46.10	47.01
1623	NYSE	ERF	Wed, May 16, 2007	45.74	46.20	45.57	46.19
1622	NYSE	ERF	Tue, May 15, 2007	45.43	46.18	45.21	45.78
1621	NYSE	ERF	Mon, May 14, 2007	45.16	45.39	44.97	45.15
1620	NYSE	ERF	Fri, May 11, 2007	45.11	45.26	44.90	45.15
1619	NYSE	ERF	Thu, May 10, 2007	46.12	46.19	45.00	45.16
1618	NYSE	ERF	Wed, May 9, 2007	45.50	46.48	45.50	46.18
1617	NYSE	ERF	Tue, May 8, 2007	44.85	45.59	44.85	45.54
1616	NYSE	ERF	Mon, May 7, 2007	45.10	45.37	44.92	45.37
1615	NYSE	ERF	Fri, May 4, 2007	44.73	44.97	44.67	44.92
1614	NYSE	ERF	Thu, May 3, 2007	44.46	44.84	44.41	44.82
1613	NYSE	ERF	Wed, May 2, 2007	44.09	44.50	43.95	44.44
1612	NYSE	ERF	Tue, May 1, 2007	43.50	44.17	43.50	43.99
1611	NYSE	ERF	Mon, Apr 30, 2007	43.60	43.85	43.14	43.50
1610	NYSE	ERF	Fri, Apr 27, 2007	42.82	43.59	42.82	43.57
1609	NYSE	ERF	Thu, Apr 26, 2007	43.31	43.33	42.76	42.98
1608	NYSE	ERF	Wed, Apr 25, 2007	43.34	43.55	43.09	43.37
1607	NYSE	ERF	Tue, Apr 24, 2007	43.25	43.48	42.89	43.24
1606	NYSE	ERF	Mon, Apr 23, 2007	43.28	43.38	43.00	43.32
1605	NYSE	ERF	Fri, Apr 20, 2007	43.23	43.49	43.09	43.48
1604	NYSE	ERF	Thu, Apr 19, 2007	42.84	43.04	42.46	42.96
1603	NYSE	ERF	Wed, Apr 18, 2007	42.71	43.10	42.62	42.96
1602	NYSE	ERF	Tue, Apr 17, 2007	43.08	43.31	42.56	42.75
1601	NYSE	ERF	Mon, Apr 16, 2007	43.00	43.07	42.50	43.03
1600	NYSE	ERF	Fri, Apr 13, 2007	42.60	42.90	42.40	42.90
1599	NYSE	ERF	Thu, Apr 12, 2007	42.20	42.63	42.14	42.56
1598	NYSE	ERF	Wed, Apr 11, 2007	41.96	42.17	41.81	42.17
1597	NYSE	ERF	Tue, Apr 10, 2007	41.97	42.00	41.66	41.83
1596	NYSE	ERF	Mon, Apr 9, 2007	42.25	42.30	41.63	41.78
1595	NYSE	ERF	Thu, Apr 5, 2007	42.33	42.50	42.10	42.35
1594	NYSE	ERF	Wed, Apr 4, 2007	42.30	42.58	42.17	42.45
1593	NYSE	ERF	Tue, Apr 3, 2007	42.43	42.43	42.20	42.38
1592	NYSE	ERF	Mon, Apr 2, 2007	42.04	42.63	42.03	42.43
1591	NYSE	ERF	Fri, Mar 30, 2007	42.65	42.84	42.17	42.22
1590	NYSE	ERF	Thu, Mar 29, 2007	42.81	42.81	42.59	42.60
1589	NYSE	ERF	Wed, Mar 28, 2007	42.77	42.90	42.67	42.67
1588	NYSE	ERF	Tue, Mar 27, 2007	42.78	42.87	42.54	42.79
1587	NYSE	ERF	Mon, Mar 26, 2007	42.72	42.72	42.55	42.69
1586	NYSE	ERF	Fri, Mar 23, 2007	42.86	42.87	42.65	42.72
1585	NYSE	ERF	Thu, Mar 22, 2007	43.11	43.78	42.91	43.71
1584	NYSE	ERF	Wed, Mar 21, 2007	42.19	42.80	42.10	42.67
1583	NYSE	ERF	Tue, Mar 20, 2007	41.54	42.09	41.54	41.89
1582	NYSE	ERF	Mon, Mar 19, 2007	40.88	41.35	40.65	41.35
1581	NYSE	ERF	Fri, Mar 16, 2007	40.16	40.50	40.00	40.15
1580	NYSE	ERF	Thu, Mar 15, 2007	40.90	41.00	40.15	40.25
1579	NYSE	ERF	Wed, Mar 14, 2007	41.01	41.31	40.48	40.76
1578	NYSE	ERF	Tue, Mar 13, 2007	41.55	42.00	40.92	40.99
1577	NYSE	ERF	Mon, Mar 12, 2007	41.60	41.64	41.30	41.42
1576	NYSE	ERF	Fri, Mar 9, 2007	41.95	41.97	41.50	41.69
1575	NYSE	ERF	Thu, Mar 8, 2007	41.80	41.88	41.40	41.55
1574	NYSE	ERF	Wed, Mar 7, 2007	41.64	41.77	41.35	41.70
1573	NYSE	ERF	Tue, Mar 6, 2007	41.87	42.32	41.79	42.00
1572	NYSE	ERF	Mon, Mar 5, 2007	42.33	42.33	41.20	41.48
1571	NYSE	ERF	Fri, Mar 2, 2007	43.40	43.40	42.50	42.59
1570	NYSE	ERF	Thu, Mar 1, 2007	43.09	43.65	42.76	42.98
1569	NYSE	ERF	Wed, Feb 28, 2007	43.50	43.73	43.04	43.31
1568	NYSE	ERF	Tue, Feb 27, 2007	43.23	43.79	43.12	43.22
1567	NYSE	ERF	Mon, Feb 26, 2007	44.09	44.40	44.00	44.13
1566	NYSE	ERF	Fri, Feb 23, 2007	43.96	44.00	43.59	43.96
1565	NYSE	ERF	Thu, Feb 22, 2007	43.60	43.68	43.36	43.46
1564	NYSE	ERF	Wed, Feb 21, 2007	43.33	43.76	43.18	43.44
1563	NYSE	ERF	Tue, Feb 20, 2007	43.38	43.42	43.01	43.17
1562	NYSE	ERF	Fri, Feb 16, 2007	43.57	43.88	43.33	43.75
1561	NYSE	ERF	Thu, Feb 15, 2007	43.55	43.76	43.02	43.47
1560	NYSE	ERF	Wed, Feb 14, 2007	42.92	43.60	42.92	43.27
1559	NYSE	ERF	Tue, Feb 13, 2007	43.10	43.37	42.91	43.05
1558	NYSE	ERF	Mon, Feb 12, 2007	43.48	43.65	42.60	42.96
1557	NYSE	ERF	Fri, Feb 9, 2007	44.25	44.28	43.32	43.52
1556	NYSE	ERF	Thu, Feb 8, 2007	43.18	43.97	42.61	43.90
1555	NYSE	ERF	Wed, Feb 7, 2007	43.86	44.04	43.10	43.34
1554	NYSE	ERF	Tue, Feb 6, 2007	44.60	44.63	43.90	44.19
1553	NYSE	ERF	Mon, Feb 5, 2007	44.44	44.67	44.12	44.33
1552	NYSE	ERF	Fri, Feb 2, 2007	43.99	44.45	43.60	44.22
1551	NYSE	ERF	Thu, Feb 1, 2007	44.00	44.48	43.71	43.98
1550	NYSE	ERF	Wed, Jan 31, 2007	43.09	44.10	42.92	43.87
1549	NYSE	ERF	Tue, Jan 30, 2007	42.33	43.19	42.22	43.11
1548	NYSE	ERF	Mon, Jan 29, 2007	42.03	42.81	41.78	42.17
1547	NYSE	ERF	Fri, Jan 26, 2007	41.78	43.47	41.74	42.03
1546	NYSE	ERF	Thu, Jan 25, 2007	41.91	41.91	41.04	41.38
1545	NYSE	ERF	Wed, Jan 24, 2007	41.62	41.90	41.35	41.65
1544	NYSE	ERF	Tue, Jan 23, 2007	41.67	41.93	41.42	42.30
1543	NYSE	ERF	Mon, Jan 22, 2007	41.24	41.70	40.99	41.44
1542	NYSE	ERF	Fri, Jan 19, 2007	41.33	41.75	40.87	40.97
1541	NYSE	ERF	Thu, Jan 18, 2007	41.82	42.18	41.16	41.33
1540	NYSE	ERF	Wed, Jan 17, 2007	41.14	41.75	40.89	41.73
1539	NYSE	ERF	Tue, Jan 16, 2007	41.25	41.75	40.72	40.77
1538	NYSE	ERF	Fri, Jan 12, 2007	40.12	41.20	40.11	41.07
1537	NYSE	ERF	Thu, Jan 11, 2007	40.02	40.66	39.85	39.94
1536	NYSE	ERF	Wed, Jan 10, 2007	39.59	40.28	39.55	40.07
1535	NYSE	ERF	Tue, Jan 9, 2007	40.05	40.27	39.53	39.90
1534	NYSE	ERF	Mon, Jan 8, 2007	41.26	41.69	40.45	40.67
1533	NYSE	ERF	Fri, Jan 5, 2007	40.39	41.33	39.76	40.77
1532	NYSE	ERF	Thu, Jan 4, 2007	41.56	41.69	39.57	40.39
1531	NYSE	ERF	Wed, Jan 3, 2007	42.77	42.93	41.70	42.03
1530	NYSE	ERF	Fri, Dec 29, 2006	43.18	43.91	42.76	43.61
1529	NYSE	ERF	Thu, Dec 28, 2006	44.02	44.02	43.36	43.36
1528	NYSE	ERF	Wed, Dec 27, 2006	44.47	44.76	43.93	44.06
1527	NYSE	ERF	Tue, Dec 26, 2006	45.80	45.80	44.33	44.80
1526	NYSE	ERF	Fri, Dec 22, 2006	45.20	45.68	45.03	45.30
1525	NYSE	ERF	Thu, Dec 21, 2006	45.74	46.10	44.81	45.24
1524	NYSE	ERF	Wed, Dec 20, 2006	46.04	46.20	45.60	45.93
1523	NYSE	ERF	Tue, Dec 19, 2006	46.25	46.40	45.58	45.80
1522	NYSE	ERF	Mon, Dec 18, 2006	46.70	46.75	46.12	46.24
1521	NYSE	ERF	Fri, Dec 15, 2006	46.69	46.75	46.34	46.58
1520	NYSE	ERF	Thu, Dec 14, 2006	46.41	46.68	46.21	46.62
1519	NYSE	ERF	Wed, Dec 13, 2006	46.23	46.30	46.00	46.21
1518	NYSE	ERF	Tue, Dec 12, 2006	46.56	46.58	45.85	46.06
1517	NYSE	ERF	Mon, Dec 11, 2006	45.99	46.64	45.95	46.31
1516	NYSE	ERF	Fri, Dec 8, 2006	46.00	46.28	45.81	46.06
1515	NYSE	ERF	Thu, Dec 7, 2006	45.98	45.98	45.52	45.70
1514	NYSE	ERF	Wed, Dec 6, 2006	46.32	46.33	45.63	45.90
1513	NYSE	ERF	Tue, Dec 5, 2006	46.38	47.13	45.91	46.54
1512	NYSE	ERF	Mon, Dec 4, 2006	45.99	46.06	45.36	46.03
1511	NYSE	ERF	Fri, Dec 1, 2006	45.91	46.05	44.97	46.00
1510	NYSE	ERF	Thu, Nov 30, 2006	46.44	46.44	45.75	46.13
1509	NYSE	ERF	Wed, Nov 29, 2006	45.45	46.28	45.41	46.01
1508	NYSE	ERF	Tue, Nov 28, 2006	44.99	45.49	44.50	45.41
1507	NYSE	ERF	Mon, Nov 27, 2006	44.73	45.23	44.33	44.51
1506	NYSE	ERF	Fri, Nov 24, 2006	44.75	45.26	44.50	44.71
1505	NYSE	ERF	Wed, Nov 22, 2006	45.12	45.12	43.90	44.65
1504	NYSE	ERF	Tue, Nov 21, 2006	42.56	44.87	42.56	44.75
1503	NYSE	ERF	Mon, Nov 20, 2006	42.36	42.75	41.85	42.40
1502	NYSE	ERF	Fri, Nov 17, 2006	40.66	42.55	40.33	42.17
1501	NYSE	ERF	Thu, Nov 16, 2006	42.25	42.50	40.85	40.86
1500	NYSE	ERF	Wed, Nov 15, 2006	38.53	41.17	38.47	41.17
1499	NYSE	ERF	Tue, Nov 14, 2006	40.44	40.74	38.96	39.12
1498	NYSE	ERF	Mon, Nov 13, 2006	40.48	40.82	39.00	40.80
1497	NYSE	ERF	Fri, Nov 10, 2006	42.34	43.20	41.21	41.35
1496	NYSE	ERF	Thu, Nov 9, 2006	44.31	44.50	42.10	43.02
1495	NYSE	ERF	Wed, Nov 8, 2006	44.15	44.18	43.17	44.14
1494	NYSE	ERF	Tue, Nov 7, 2006	46.32	46.40	44.12	44.29
1493	NYSE	ERF	Mon, Nov 6, 2006	45.02	45.91	44.82	45.54
1492	NYSE	ERF	Fri, Nov 3, 2006	42.19	45.89	41.98	44.26
1491	NYSE	ERF	Thu, Nov 2, 2006	45.67	45.67	40.38	42.29
1490	NYSE	ERF	Wed, Nov 1, 2006	48.59	48.90	45.60	46.25
1489	NYSE	ERF	Tue, Oct 31, 2006	53.66	54.49	53.37	54.30
1488	NYSE	ERF	Mon, Oct 30, 2006	54.69	54.70	53.50	54.03
1487	NYSE	ERF	Fri, Oct 27, 2006	55.01	55.44	54.70	54.75
1486	NYSE	ERF	Thu, Oct 26, 2006	55.01	55.13	53.99	54.58
1485	NYSE	ERF	Wed, Oct 25, 2006	54.08	55.07	53.80	54.98
1484	NYSE	ERF	Tue, Oct 24, 2006	53.41	54.19	53.03	54.08
1483	NYSE	ERF	Mon, Oct 23, 2006	52.84	54.00	52.84	52.89
1482	NYSE	ERF	Fri, Oct 20, 2006	52.90	53.24	52.30	52.98
1481	NYSE	ERF	Thu, Oct 19, 2006	51.80	52.68	51.74	52.51
1480	NYSE	ERF	Wed, Oct 18, 2006	52.65	53.00	51.54	51.54
1479	NYSE	ERF	Tue, Oct 17, 2006	52.71	52.78	51.90	52.40
1478	NYSE	ERF	Mon, Oct 16, 2006	51.69	52.45	51.35	52.36
1477	NYSE	ERF	Fri, Oct 13, 2006	50.41	51.28	50.36	51.12
1476	NYSE	ERF	Thu, Oct 12, 2006	49.50	50.10	49.07	50.10
1475	NYSE	ERF	Wed, Oct 11, 2006	50.00	50.35	48.81	49.00
1474	NYSE	ERF	Tue, Oct 10, 2006	49.82	50.50	49.31	49.92
1473	NYSE	ERF	Mon, Oct 9, 2006	50.00	50.65	49.56	49.83
1472	NYSE	ERF	Fri, Oct 6, 2006	49.25	50.00	48.28	49.50
1471	NYSE	ERF	Thu, Oct 5, 2006	49.42	49.97	48.59	49.56
1470	NYSE	ERF	Wed, Oct 4, 2006	47.43	48.49	45.69	48.16
1469	NYSE	ERF	Tue, Oct 3, 2006	49.13	49.13	47.37	47.50
1468	NYSE	ERF	Mon, Oct 2, 2006	50.30	50.65	49.18	49.49
1467	NYSE	ERF	Fri, Sep 29, 2006	50.63	50.65	49.75	50.29
1466	NYSE	ERF	Thu, Sep 28, 2006	50.46	51.09	49.95	50.62
1465	NYSE	ERF	Wed, Sep 27, 2006	50.18	50.37	48.21	49.72
1464	NYSE	ERF	Tue, Sep 26, 2006	47.39	50.00	47.34	49.49
1463	NYSE	ERF	Mon, Sep 25, 2006	46.01	47.64	45.41	47.50
1462	NYSE	ERF	Fri, Sep 22, 2006	48.51	48.55	46.55	47.18
1461	NYSE	ERF	Thu, Sep 21, 2006	47.42	48.06	45.73	48.06
1460	NYSE	ERF	Wed, Sep 20, 2006	48.90	49.33	47.01	47.20
1459	NYSE	ERF	Tue, Sep 19, 2006	51.05	51.34	49.39	49.46
1458	NYSE	ERF	Mon, Sep 18, 2006	49.29	50.65	49.22	50.50
1457	NYSE	ERF	Fri, Sep 15, 2006	50.05	50.10	48.60	49.12
1456	NYSE	ERF	Thu, Sep 14, 2006	51.98	52.19	50.30	50.33
1455	NYSE	ERF	Wed, Sep 13, 2006	50.06	51.46	50.00	51.45
1454	NYSE	ERF	Tue, Sep 12, 2006	50.01	51.30	50.00	50.01
1453	NYSE	ERF	Mon, Sep 11, 2006	52.13	52.57	49.69	50.61
1452	NYSE	ERF	Fri, Sep 8, 2006	54.61	55.21	53.19	53.40
1451	NYSE	ERF	Thu, Sep 7, 2006	55.50	55.83	53.68	54.53
1450	NYSE	ERF	Wed, Sep 6, 2006	56.90	56.98	56.03	56.40
1449	NYSE	ERF	Tue, Sep 5, 2006	57.66	58.15	57.40	57.79
1448	NYSE	ERF	Fri, Sep 1, 2006	58.29	58.73	58.15	58.19
1447	NYSE	ERF	Thu, Aug 31, 2006	58.20	58.50	57.62	58.29
1446	NYSE	ERF	Wed, Aug 30, 2006	59.10	59.10	57.53	58.33
1445	NYSE	ERF	Tue, Aug 29, 2006	58.40	59.04	57.40	59.04
1444	NYSE	ERF	Mon, Aug 28, 2006	58.79	58.95	58.20	58.40
1443	NYSE	ERF	Fri, Aug 25, 2006	59.13	59.38	58.79	58.80
1442	NYSE	ERF	Thu, Aug 24, 2006	58.57	58.98	58.27	58.55
1441	NYSE	ERF	Wed, Aug 23, 2006	57.83	58.58	57.64	58.27
1440	NYSE	ERF	Tue, Aug 22, 2006	57.19	57.89	57.19	57.64
1439	NYSE	ERF	Mon, Aug 21, 2006	56.80	57.66	56.80	57.01
1438	NYSE	ERF	Fri, Aug 18, 2006	56.00	56.77	55.76	56.77
1437	NYSE	ERF	Thu, Aug 17, 2006	57.00	57.01	55.55	55.99
1436	NYSE	ERF	Wed, Aug 16, 2006	57.53	57.85	57.02	57.02
1435	NYSE	ERF	Tue, Aug 15, 2006	56.88	57.35	56.76	57.18
1434	NYSE	ERF	Mon, Aug 14, 2006	57.67	57.81	56.60	56.88
1433	NYSE	ERF	Fri, Aug 11, 2006	58.08	58.32	57.76	58.00
1432	NYSE	ERF	Thu, Aug 10, 2006	58.00	58.00	57.10	57.32
1431	NYSE	ERF	Wed, Aug 9, 2006	58.40	58.78	57.76	58.08
1430	NYSE	ERF	Tue, Aug 8, 2006	58.88	58.96	58.27	58.30
1429	NYSE	ERF	Mon, Aug 7, 2006	58.75	59.45	58.31	59.21
1428	NYSE	ERF	Fri, Aug 4, 2006	58.18	58.40	57.76	58.27
1427	NYSE	ERF	Thu, Aug 3, 2006	58.16	58.23	57.40	58.00
1426	NYSE	ERF	Wed, Aug 2, 2006	58.00	58.59	57.89	58.29
1425	NYSE	ERF	Tue, Aug 1, 2006	57.53	57.90	56.99	57.40
1424	NYSE	ERF	Mon, Jul 31, 2006	57.20	57.94	57.05	57.54
1423	NYSE	ERF	Fri, Jul 28, 2006	56.19	57.25	56.10	56.95
1422	NYSE	ERF	Thu, Jul 27, 2006	56.20	56.64	55.85	56.16
1421	NYSE	ERF	Wed, Jul 26, 2006	55.59	56.30	55.51	55.79
1420	NYSE	ERF	Tue, Jul 25, 2006	55.10	55.94	55.10	55.51
1419	NYSE	ERF	Mon, Jul 24, 2006	54.70	55.58	54.42	54.88
1418	NYSE	ERF	Fri, Jul 21, 2006	54.79	54.80	54.25	54.73
1417	NYSE	ERF	Thu, Jul 20, 2006	54.94	55.35	54.13	54.65
1416	NYSE	ERF	Wed, Jul 19, 2006	55.07	55.34	54.42	54.65
1415	NYSE	ERF	Tue, Jul 18, 2006	55.10	55.50	54.40	55.01
1414	NYSE	ERF	Mon, Jul 17, 2006	55.62	55.62	54.40	54.75
1413	NYSE	ERF	Fri, Jul 14, 2006	55.54	56.10	55.11	55.62
1412	NYSE	ERF	Thu, Jul 13, 2006	55.12	55.68	54.80	55.20
1411	NYSE	ERF	Wed, Jul 12, 2006	55.14	55.42	54.00	54.69
1410	NYSE	ERF	Tue, Jul 11, 2006	54.94	55.51	54.69	55.32
1409	NYSE	ERF	Mon, Jul 10, 2006	54.11	54.70	53.30	54.54
1408	NYSE	ERF	Fri, Jul 7, 2006	55.68	55.83	54.26	54.60
1407	NYSE	ERF	Thu, Jul 6, 2006	55.83	56.11	54.84	55.55
1406	NYSE	ERF	Wed, Jul 5, 2006	55.55	56.50	55.23	56.26
1405	NYSE	ERF	Mon, Jul 3, 2006	56.49	57.25	56.44	56.52
1404	NYSE	ERF	Fri, Jun 30, 2006	56.57	56.65	55.69	56.24
1403	NYSE	ERF	Thu, Jun 29, 2006	54.98	56.50	54.87	56.14
1402	NYSE	ERF	Wed, Jun 28, 2006	53.76	54.60	53.76	54.51
1401	NYSE	ERF	Tue, Jun 27, 2006	53.21	54.12	53.21	53.76
1400	NYSE	ERF	Mon, Jun 26, 2006	52.75	53.15	52.32	53.02
1399	NYSE	ERF	Fri, Jun 23, 2006	51.90	53.08	51.80	52.32
1398	NYSE	ERF	Thu, Jun 22, 2006	51.81	52.37	51.80	52.00
1397	NYSE	ERF	Wed, Jun 21, 2006	51.41	52.98	51.41	51.82
1396	NYSE	ERF	Tue, Jun 20, 2006	51.09	51.64	50.56	51.08
1395	NYSE	ERF	Mon, Jun 19, 2006	52.15	52.15	50.58	51.04
1394	NYSE	ERF	Fri, Jun 16, 2006	52.26	52.69	51.62	52.34
1393	NYSE	ERF	Thu, Jun 15, 2006	51.30	52.25	51.23	52.11
1392	NYSE	ERF	Wed, Jun 14, 2006	48.60	51.03	48.60	50.23
1391	NYSE	ERF	Tue, Jun 13, 2006	51.01	51.68	48.52	48.60
1390	NYSE	ERF	Mon, Jun 12, 2006	54.00	54.13	52.37	52.65
1389	NYSE	ERF	Fri, Jun 9, 2006	54.70	54.95	53.77	54.03
1388	NYSE	ERF	Thu, Jun 8, 2006	53.78	54.08	51.70	53.89
1387	NYSE	ERF	Wed, Jun 7, 2006	55.52	55.52	54.55	54.95
1386	NYSE	ERF	Tue, Jun 6, 2006	55.30	56.14	54.63	56.14
1385	NYSE	ERF	Mon, Jun 5, 2006	57.79	58.00	56.03	56.20
1384	NYSE	ERF	Fri, Jun 2, 2006	56.45	57.22	56.16	57.02
1383	NYSE	ERF	Thu, Jun 1, 2006	55.04	56.28	54.78	55.78
1382	NYSE	ERF	Wed, May 31, 2006	54.00	56.03	54.00	55.74
1381	NYSE	ERF	Tue, May 30, 2006	53.49	53.99	53.31	53.95
1380	NYSE	ERF	Fri, May 26, 2006	51.80	52.84	51.65	52.38
1379	NYSE	ERF	Thu, May 25, 2006	50.93	52.25	50.93	51.87
1378	NYSE	ERF	Wed, May 24, 2006	50.39	50.70	49.77	50.08
1377	NYSE	ERF	Tue, May 23, 2006	50.56	51.08	49.50	50.63
1376	NYSE	ERF	Mon, May 22, 2006	48.79	48.89	46.50	48.52
1375	NYSE	ERF	Fri, May 19, 2006	50.00	50.13	47.40	49.48
1374	NYSE	ERF	Thu, May 18, 2006	50.35	50.58	49.03	50.19
1373	NYSE	ERF	Wed, May 17, 2006	51.87	51.90	50.25	50.40
1372	NYSE	ERF	Tue, May 16, 2006	51.20	51.93	51.03	51.69
1371	NYSE	ERF	Mon, May 15, 2006	53.15	53.16	50.27	51.11
1370	NYSE	ERF	Fri, May 12, 2006	55.18	55.18	54.00	54.12
1369	NYSE	ERF	Thu, May 11, 2006	55.24	55.88	55.01	55.03
1368	NYSE	ERF	Wed, May 10, 2006	54.53	55.04	54.27	54.92
1367	NYSE	ERF	Tue, May 9, 2006	54.09	54.88	54.09	54.52
1366	NYSE	ERF	Mon, May 8, 2006	53.55	53.96	53.04	53.90
1365	NYSE	ERF	Fri, May 5, 2006	54.35	54.64	53.84	54.35
1364	NYSE	ERF	Thu, May 4, 2006	54.27	54.45	53.60	53.82
1363	NYSE	ERF	Wed, May 3, 2006	54.95	55.00	54.38	54.46
1362	NYSE	ERF	Tue, May 2, 2006	54.58	54.98	54.41	54.74
1361	NYSE	ERF	Mon, May 1, 2006	54.11	54.49	53.84	54.10
1360	NYSE	ERF	Fri, Apr 28, 2006	52.90	53.60	52.89	53.59
1359	NYSE	ERF	Thu, Apr 27, 2006	52.65	52.99	52.02	52.47
1358	NYSE	ERF	Wed, Apr 26, 2006	53.00	53.49	52.66	52.66
1357	NYSE	ERF	Tue, Apr 25, 2006	53.14	53.48	52.70	52.95
1356	NYSE	ERF	Mon, Apr 24, 2006	52.89	53.00	52.65	52.89
1355	NYSE	ERF	Fri, Apr 21, 2006	52.78	52.95	52.59	52.90
1354	NYSE	ERF	Thu, Apr 20, 2006	52.50	52.94	51.56	52.41
1353	NYSE	ERF	Wed, Apr 19, 2006	52.35	53.00	52.14	52.89
1352	NYSE	ERF	Tue, Apr 18, 2006	52.46	52.78	52.40	52.56
1351	NYSE	ERF	Mon, Apr 17, 2006	52.00	52.47	52.00	52.43
1350	NYSE	ERF	Thu, Apr 13, 2006	52.00	52.00	51.52	51.90
1349	NYSE	ERF	Wed, Apr 12, 2006	51.49	52.05	51.30	52.05
1348	NYSE	ERF	Tue, Apr 11, 2006	52.00	52.03	51.25	51.64
1347	NYSE	ERF	Mon, Apr 10, 2006	51.63	51.88	51.42	51.66
1346	NYSE	ERF	Fri, Apr 7, 2006	51.16	51.42	50.77	50.92
1345	NYSE	ERF	Thu, Apr 6, 2006	51.60	51.75	50.85	51.54
1344	NYSE	ERF	Wed, Apr 5, 2006	51.25	51.67	51.02	51.40
1343	NYSE	ERF	Tue, Apr 4, 2006	50.45	51.10	50.31	51.00
1342	NYSE	ERF	Mon, Apr 3, 2006	50.28	51.00	50.10	50.72
1341	NYSE	ERF	Fri, Mar 31, 2006	50.13	50.47	49.90	50.44
1340	NYSE	ERF	Thu, Mar 30, 2006	50.23	50.53	50.08	50.23
1339	NYSE	ERF	Wed, Mar 29, 2006	49.72	49.98	49.33	49.85
1338	NYSE	ERF	Tue, Mar 28, 2006	49.60	49.81	49.45	49.59
1337	NYSE	ERF	Mon, Mar 27, 2006	49.74	49.74	49.32	49.48
1336	NYSE	ERF	Fri, Mar 24, 2006	49.75	49.93	49.50	49.75
1335	NYSE	ERF	Thu, Mar 23, 2006	49.64	49.85	49.27	49.60
1334	NYSE	ERF	Wed, Mar 22, 2006	49.15	49.58	48.95	49.40
1333	NYSE	ERF	Tue, Mar 21, 2006	49.11	49.60	48.59	49.08
1332	NYSE	ERF	Mon, Mar 20, 2006	49.50	49.74	49.11	49.35
1331	NYSE	ERF	Fri, Mar 17, 2006	50.15	50.30	49.55	50.30
1330	NYSE	ERF	Thu, Mar 16, 2006	50.10	50.36	50.00	50.31
1329	NYSE	ERF	Wed, Mar 15, 2006	50.10	50.24	49.81	50.18
1328	NYSE	ERF	Tue, Mar 14, 2006	49.84	50.30	49.52	49.90
1327	NYSE	ERF	Mon, Mar 13, 2006	49.39	49.92	49.20	49.80
1326	NYSE	ERF	Fri, Mar 10, 2006	48.11	49.20	48.11	49.09
1325	NYSE	ERF	Thu, Mar 9, 2006	49.50	49.62	48.41	48.73
1324	NYSE	ERF	Wed, Mar 8, 2006	49.05	49.60	48.41	49.28
1323	NYSE	ERF	Tue, Mar 7, 2006	50.01	50.23	49.25	49.85
1322	NYSE	ERF	Mon, Mar 6, 2006	51.33	51.36	50.43	50.60
1321	NYSE	ERF	Fri, Mar 3, 2006	51.49	51.52	51.13	51.39
1320	NYSE	ERF	Thu, Mar 2, 2006	51.40	51.64	51.15	51.64
1319	NYSE	ERF	Wed, Mar 1, 2006	50.95	52.10	50.95	51.74
1318	NYSE	ERF	Tue, Feb 28, 2006	50.61	50.94	49.84	50.67
1317	NYSE	ERF	Mon, Feb 27, 2006	51.53	51.84	51.00	51.10
1316	NYSE	ERF	Fri, Feb 24, 2006	51.50	52.34	51.10	51.54
1315	NYSE	ERF	Thu, Feb 23, 2006	50.25	51.04	49.90	50.77
1314	NYSE	ERF	Wed, Feb 22, 2006	51.65	51.75	50.45	50.46
1313	NYSE	ERF	Tue, Feb 21, 2006	52.40	52.96	51.77	51.98
1312	NYSE	ERF	Fri, Feb 17, 2006	50.25	50.67	49.85	49.99
1311	NYSE	ERF	Thu, Feb 16, 2006	48.14	49.20	48.00	49.05
1310	NYSE	ERF	Wed, Feb 15, 2006	48.34	49.22	47.51	47.59
1309	NYSE	ERF	Tue, Feb 14, 2006	46.00	47.65	45.00	47.60
1308	NYSE	ERF	Mon, Feb 13, 2006	50.05	50.20	47.55	47.82
1307	NYSE	ERF	Fri, Feb 10, 2006	52.25	52.30	49.25	50.40
1306	NYSE	ERF	Thu, Feb 9, 2006	53.45	53.75	51.92	52.52
1305	NYSE	ERF	Wed, Feb 8, 2006	52.75	53.41	51.11	52.76
1304	NYSE	ERF	Tue, Feb 7, 2006	55.11	55.11	53.00	53.15
1303	NYSE	ERF	Mon, Feb 6, 2006	55.02	56.05	55.01	55.16
1302	NYSE	ERF	Fri, Feb 3, 2006	53.71	54.75	53.44	54.44
1301	NYSE	ERF	Thu, Feb 2, 2006	53.44	53.79	53.15	53.65
1300	NYSE	ERF	Wed, Feb 1, 2006	53.50	54.00	53.05	53.44
1299	NYSE	ERF	Tue, Jan 31, 2006	52.89	53.44	52.60	53.08
1298	NYSE	ERF	Mon, Jan 30, 2006	52.45	53.32	52.40	52.90
1297	NYSE	ERF	Fri, Jan 27, 2006	51.95	52.50	51.93	52.25
1296	NYSE	ERF	Thu, Jan 26, 2006	51.66	51.79	50.80	51.77
1295	NYSE	ERF	Wed, Jan 25, 2006	51.61	51.85	51.08	51.41
1294	NYSE	ERF	Tue, Jan 24, 2006	51.25	51.97	50.50	51.66
1293	NYSE	ERF	Mon, Jan 23, 2006	50.80	51.42	50.63	51.32
1292	NYSE	ERF	Fri, Jan 20, 2006	50.40	50.83	50.18	50.62
1291	NYSE	ERF	Thu, Jan 19, 2006	49.81	50.64	49.76	50.01
1290	NYSE	ERF	Wed, Jan 18, 2006	50.39	50.74	49.52	49.76
1289	NYSE	ERF	Tue, Jan 17, 2006	50.15	50.29	49.92	50.16
1288	NYSE	ERF	Fri, Jan 13, 2006	49.39	49.87	49.02	49.32
1287	NYSE	ERF	Thu, Jan 12, 2006	49.48	50.17	49.25	49.25
1286	NYSE	ERF	Wed, Jan 11, 2006	49.22	49.45	48.95	49.04
1285	NYSE	ERF	Tue, Jan 10, 2006	48.92	49.45	48.82	49.09
1284	NYSE	ERF	Mon, Jan 9, 2006	48.72	49.00	48.35	48.81
1283	NYSE	ERF	Fri, Jan 6, 2006	48.55	48.95	48.32	48.71
1282	NYSE	ERF	Thu, Jan 5, 2006	48.95	49.10	47.95	48.23
1281	NYSE	ERF	Wed, Jan 4, 2006	48.71	49.10	48.25	48.95
1280	NYSE	ERF	Tue, Jan 3, 2006	48.65	49.08	48.55	48.72
1279	NYSE	ERF	Fri, Dec 30, 2005	47.85	48.50	47.77	47.98
1278	NYSE	ERF	Thu, Dec 29, 2005	47.91	48.69	47.62	47.95
1277	NYSE	ERF	Wed, Dec 28, 2005	47.45	48.46	47.42	48.10
1276	NYSE	ERF	Tue, Dec 27, 2005	49.00	49.30	46.34	47.63
1275	NYSE	ERF	Fri, Dec 23, 2005	49.15	49.35	48.88	49.15
1274	NYSE	ERF	Thu, Dec 22, 2005	50.00	50.29	49.26	49.44
1273	NYSE	ERF	Wed, Dec 21, 2005	49.20	49.97	48.91	49.95
1272	NYSE	ERF	Tue, Dec 20, 2005	48.50	48.81	48.15	48.76
1271	NYSE	ERF	Mon, Dec 19, 2005	48.59	49.05	48.48	48.60
1270	NYSE	ERF	Fri, Dec 16, 2005	49.29	49.38	48.08	48.60
1269	NYSE	ERF	Thu, Dec 15, 2005	49.45	49.95	49.03	49.20
1268	NYSE	ERF	Wed, Dec 14, 2005	44.00	49.87	44.00	49.49
1267	NYSE	ERF	Tue, Dec 13, 2005	49.65	49.97	49.39	49.39
1266	NYSE	ERF	Mon, Dec 12, 2005	49.60	49.60	49.12	49.30
1265	NYSE	ERF	Fri, Dec 9, 2005	49.05	49.11	48.09	49.06
1264	NYSE	ERF	Thu, Dec 8, 2005	48.27	49.15	48.27	49.05
1263	NYSE	ERF	Wed, Dec 7, 2005	49.48	49.64	47.86	48.32
1262	NYSE	ERF	Tue, Dec 6, 2005	49.10	49.55	49.00	49.34
1261	NYSE	ERF	Mon, Dec 5, 2005	48.90	49.88	48.90	49.46
1260	NYSE	ERF	Fri, Dec 2, 2005	47.27	48.31	47.18	48.31
1259	NYSE	ERF	Thu, Dec 1, 2005	46.00	47.10	46.00	46.80
1258	NYSE	ERF	Wed, Nov 30, 2005	45.50	46.59	45.47	45.80
1257	NYSE	ERF	Tue, Nov 29, 2005	44.88	45.50	44.88	45.29
1256	NYSE	ERF	Mon, Nov 28, 2005	45.70	45.79	44.88	44.88
1255	NYSE	ERF	Fri, Nov 25, 2005	45.42	45.85	44.73	45.40
1254	NYSE	ERF	Wed, Nov 23, 2005	43.50	43.58	42.91	43.58
1253	NYSE	ERF	Tue, Nov 22, 2005	43.48	43.73	43.16	43.35
1252	NYSE	ERF	Mon, Nov 21, 2005	42.48	43.10	42.29	42.86
1251	NYSE	ERF	Fri, Nov 18, 2005	42.17	42.20	41.69	42.08
1250	NYSE	ERF	Thu, Nov 17, 2005	42.00	42.39	41.90	42.01
1249	NYSE	ERF	Wed, Nov 16, 2005	40.92	41.91	40.75	41.85
1248	NYSE	ERF	Tue, Nov 15, 2005	40.97	41.68	40.96	41.02
1247	NYSE	ERF	Mon, Nov 14, 2005	41.56	41.56	40.94	41.10
1246	NYSE	ERF	Fri, Nov 11, 2005	40.80	41.49	40.19	41.40
1245	NYSE	ERF	Thu, Nov 10, 2005	41.80	41.80	40.71	40.90
1244	NYSE	ERF	Wed, Nov 9, 2005	41.71	42.35	41.45	41.80
1243	NYSE	ERF	Tue, Nov 8, 2005	41.62	41.94	41.38	41.78
1242	NYSE	ERF	Mon, Nov 7, 2005	42.10	42.34	41.51	41.95
1241	NYSE	ERF	Fri, Nov 4, 2005	42.50	42.63	41.96	42.20
1240	NYSE	ERF	Thu, Nov 3, 2005	42.40	42.75	42.32	42.49
1239	NYSE	ERF	Wed, Nov 2, 2005	41.55	42.32	41.33	42.12
1238	NYSE	ERF	Tue, Nov 1, 2005	41.90	42.10	41.35	41.55
1237	NYSE	ERF	Mon, Oct 31, 2005	42.67	42.91	41.90	42.00
1236	NYSE	ERF	Fri, Oct 28, 2005	42.11	42.60	41.61	42.51
1235	NYSE	ERF	Thu, Oct 27, 2005	42.95	43.18	41.50	41.92
1234	NYSE	ERF	Wed, Oct 26, 2005	43.29	43.90	42.63	42.75
1233	NYSE	ERF	Tue, Oct 25, 2005	41.50	43.47	41.46	43.39
1232	NYSE	ERF	Mon, Oct 24, 2005	40.45	41.59	40.06	41.32
1231	NYSE	ERF	Fri, Oct 21, 2005	39.85	41.54	38.62	41.20
1230	NYSE	ERF	Thu, Oct 20, 2005	41.80	42.44	40.26	40.30
1229	NYSE	ERF	Wed, Oct 19, 2005	43.78	43.85	42.55	43.77
1228	NYSE	ERF	Tue, Oct 18, 2005	45.08	45.08	43.52	43.85
1227	NYSE	ERF	Mon, Oct 17, 2005	45.85	45.97	44.72	45.08
1226	NYSE	ERF	Fri, Oct 14, 2005	43.31	44.98	42.94	44.70
1225	NYSE	ERF	Thu, Oct 13, 2005	45.45	45.45	42.29	43.19
1224	NYSE	ERF	Wed, Oct 12, 2005	45.97	45.97	45.14	45.55
1223	NYSE	ERF	Tue, Oct 11, 2005	44.00	45.86	43.81	45.84
1222	NYSE	ERF	Mon, Oct 10, 2005	44.99	45.50	43.00	43.57
1221	NYSE	ERF	Fri, Oct 7, 2005	42.71	44.90	42.71	44.84
1220	NYSE	ERF	Thu, Oct 6, 2005	43.22	43.47	42.00	42.29
1219	NYSE	ERF	Wed, Oct 5, 2005	46.96	46.96	44.28	44.70
1218	NYSE	ERF	Tue, Oct 4, 2005	48.19	48.19	46.52	47.48
1217	NYSE	ERF	Mon, Oct 3, 2005	47.45	48.48	47.30	48.05
1216	NYSE	ERF	Fri, Sep 30, 2005	46.59	47.52	46.32	47.20
1215	NYSE	ERF	Thu, Sep 29, 2005	45.57	46.60	45.51	46.44
1214	NYSE	ERF	Wed, Sep 28, 2005	44.00	45.47	44.00	45.47
1213	NYSE	ERF	Tue, Sep 27, 2005	43.52	43.91	43.17	43.86
1212	NYSE	ERF	Mon, Sep 26, 2005	42.74	43.61	41.29	43.52
1211	NYSE	ERF	Fri, Sep 23, 2005	44.05	44.25	43.15	43.32
1210	NYSE	ERF	Thu, Sep 22, 2005	45.01	46.23	43.50	44.10
1209	NYSE	ERF	Wed, Sep 21, 2005	44.40	44.73	44.16	44.43
1208	NYSE	ERF	Tue, Sep 20, 2005	44.02	44.02	43.65	43.87
1207	NYSE	ERF	Mon, Sep 19, 2005	43.15	44.23	43.10	43.93
1206	NYSE	ERF	Fri, Sep 16, 2005	43.19	43.29	42.95	42.98
1205	NYSE	ERF	Thu, Sep 15, 2005	42.70	43.12	42.51	42.85
1204	NYSE	ERF	Wed, Sep 14, 2005	42.58	42.65	42.26	42.65
1203	NYSE	ERF	Tue, Sep 13, 2005	42.17	42.35	42.00	42.34
1202	NYSE	ERF	Mon, Sep 12, 2005	42.47	42.47	41.92	42.15
1201	NYSE	ERF	Fri, Sep 9, 2005	42.35	42.87	42.31	42.65
1200	NYSE	ERF	Thu, Sep 8, 2005	42.15	42.20	41.62	42.14
1199	NYSE	ERF	Wed, Sep 7, 2005	41.99	42.13	41.77	41.90
1198	NYSE	ERF	Tue, Sep 6, 2005	42.31	42.37	41.67	42.17
1197	NYSE	ERF	Fri, Sep 2, 2005	42.50	42.55	41.71	42.26
1196	NYSE	ERF	Thu, Sep 1, 2005	42.05	42.67	42.00	42.67
1195	NYSE	ERF	Wed, Aug 31, 2005	41.90	42.15	41.71	42.03
1194	NYSE	ERF	Tue, Aug 30, 2005	40.88	41.83	40.71	41.57
1193	NYSE	ERF	Mon, Aug 29, 2005	40.99	41.15	40.43	40.67
1192	NYSE	ERF	Fri, Aug 26, 2005	40.27	40.38	40.10	40.17
1191	NYSE	ERF	Thu, Aug 25, 2005	40.50	40.72	39.97	40.35
1190	NYSE	ERF	Wed, Aug 24, 2005	40.35	40.55	40.15	40.46
1189	NYSE	ERF	Tue, Aug 23, 2005	40.14	40.38	39.93	40.06
1188	NYSE	ERF	Mon, Aug 22, 2005	39.83	40.00	39.61	39.85
1187	NYSE	ERF	Fri, Aug 19, 2005	38.43	39.26	38.29	39.22
1186	NYSE	ERF	Thu, Aug 18, 2005	37.50	38.02	36.76	37.87
1185	NYSE	ERF	Wed, Aug 17, 2005	39.90	39.90	38.07	38.41
1184	NYSE	ERF	Tue, Aug 16, 2005	40.04	40.15	39.85	40.05
1183	NYSE	ERF	Mon, Aug 15, 2005	40.91	40.91	40.19	40.27
1182	NYSE	ERF	Fri, Aug 12, 2005	41.05	41.14	40.77	40.99
1181	NYSE	ERF	Thu, Aug 11, 2005	40.92	40.98	40.73	40.73
1180	NYSE	ERF	Wed, Aug 10, 2005	40.40	40.67	40.30	40.59
1179	NYSE	ERF	Tue, Aug 9, 2005	41.30	41.30	39.04	40.20
1178	NYSE	ERF	Mon, Aug 8, 2005	41.72	41.80	41.50	41.62
1177	NYSE	ERF	Fri, Aug 5, 2005	41.52	41.74	41.26	41.74
1176	NYSE	ERF	Thu, Aug 4, 2005	41.59	41.66	41.45	41.52
1175	NYSE	ERF	Wed, Aug 3, 2005	41.70	42.10	41.18	41.39
1174	NYSE	ERF	Tue, Aug 2, 2005	40.80	41.59	40.72	41.47
1173	NYSE	ERF	Mon, Aug 1, 2005	40.00	40.68	40.00	40.68
1172	NYSE	ERF	Fri, Jul 29, 2005	39.65	39.99	39.62	39.91
1171	NYSE	ERF	Thu, Jul 28, 2005	39.05	39.50	38.95	39.40
1170	NYSE	ERF	Wed, Jul 27, 2005	38.45	39.00	38.19	38.95
1169	NYSE	ERF	Tue, Jul 26, 2005	38.55	38.64	38.45	38.64
1168	NYSE	ERF	Mon, Jul 25, 2005	38.70	38.86	38.60	38.76
1167	NYSE	ERF	Fri, Jul 22, 2005	38.50	38.70	38.34	38.69
1166	NYSE	ERF	Thu, Jul 21, 2005	38.61	38.67	38.35	38.43
1165	NYSE	ERF	Wed, Jul 20, 2005	38.54	38.70	38.31	38.39
1164	NYSE	ERF	Tue, Jul 19, 2005	38.65	38.70	38.01	38.47
1163	NYSE	ERF	Mon, Jul 18, 2005	39.36	39.50	38.94	39.20
1162	NYSE	ERF	Fri, Jul 15, 2005	38.52	39.50	38.52	39.35
1161	NYSE	ERF	Thu, Jul 14, 2005	39.90	40.05	38.65	38.89
1160	NYSE	ERF	Wed, Jul 13, 2005	39.90	40.00	39.83	40.00
1159	NYSE	ERF	Tue, Jul 12, 2005	39.40	39.85	39.20	39.84
1158	NYSE	ERF	Mon, Jul 11, 2005	39.26	39.68	39.22	39.37
1157	NYSE	ERF	Fri, Jul 8, 2005	39.94	40.08	39.67	39.71
1156	NYSE	ERF	Thu, Jul 7, 2005	38.87	39.70	38.77	39.68
1155	NYSE	ERF	Wed, Jul 6, 2005	39.15	39.37	39.05	39.25
1154	NYSE	ERF	Tue, Jul 5, 2005	38.85	39.29	38.60	39.08
1153	NYSE	ERF	Fri, Jul 1, 2005	38.45	38.88	38.24	38.86
1152	NYSE	ERF	Thu, Jun 30, 2005	38.00	38.50	37.90	38.20
1151	NYSE	ERF	Wed, Jun 29, 2005	37.74	37.94	37.51	37.94
1150	NYSE	ERF	Tue, Jun 28, 2005	38.01	38.16	37.60	37.87
1149	NYSE	ERF	Mon, Jun 27, 2005	38.00	38.47	37.98	38.34
1148	NYSE	ERF	Fri, Jun 24, 2005	37.46	38.00	37.33	37.93
1147	NYSE	ERF	Thu, Jun 23, 2005	37.39	37.70	37.30	37.35
1146	NYSE	ERF	Wed, Jun 22, 2005	37.37	37.63	37.25	37.45
1145	NYSE	ERF	Tue, Jun 21, 2005	37.81	37.81	37.25	37.37
1144	NYSE	ERF	Mon, Jun 20, 2005	38.00	38.14	37.42	37.74
1143	NYSE	ERF	Fri, Jun 17, 2005	37.58	38.00	37.28	38.00
1142	NYSE	ERF	Thu, Jun 16, 2005	37.62	38.14	37.58	37.59
1141	NYSE	ERF	Wed, Jun 15, 2005	37.00	37.84	37.00	37.84
1140	NYSE	ERF	Tue, Jun 14, 2005	36.69	36.94	36.51	36.80
1139	NYSE	ERF	Mon, Jun 13, 2005	36.36	36.64	36.13	36.56
1138	NYSE	ERF	Fri, Jun 10, 2005	36.23	36.50	36.16	36.49
1137	NYSE	ERF	Thu, Jun 9, 2005	36.08	36.23	35.86	36.15
1136	NYSE	ERF	Wed, Jun 8, 2005	36.00	36.30	35.75	35.88
1135	NYSE	ERF	Tue, Jun 7, 2005	36.24	36.35	36.00	36.29
1134	NYSE	ERF	Mon, Jun 6, 2005	36.33	36.35	36.05	36.09
1133	NYSE	ERF	Fri, Jun 3, 2005	36.10	36.35	36.01	36.07
1132	NYSE	ERF	Thu, Jun 2, 2005	35.76	36.39	35.76	35.85
1131	NYSE	ERF	Wed, Jun 1, 2005	35.59	35.98	35.50	35.75
1130	NYSE	ERF	Tue, May 31, 2005	36.00	36.00	35.21	35.30
1129	NYSE	ERF	Fri, May 27, 2005	35.50	36.15	35.36	35.61
1128	NYSE	ERF	Thu, May 26, 2005	35.00	35.29	34.93	35.18
1127	NYSE	ERF	Wed, May 25, 2005	34.45	35.08	34.26	34.82
1126	NYSE	ERF	Tue, May 24, 2005	34.53	34.87	34.03	34.20
1125	NYSE	ERF	Mon, May 23, 2005	34.22	34.97	34.05	34.53
1124	NYSE	ERF	Fri, May 20, 2005	33.79	34.11	33.70	33.89
1123	NYSE	ERF	Thu, May 19, 2005	33.58	33.75	33.50	33.74
1122	NYSE	ERF	Wed, May 18, 2005	34.45	34.90	33.51	33.58
1121	NYSE	ERF	Tue, May 17, 2005	32.77	34.17	32.40	34.05
1120	NYSE	ERF	Mon, May 16, 2005	33.50	33.51	32.00	32.97
1119	NYSE	ERF	Fri, May 13, 2005	34.63	34.85	33.60	33.69
1118	NYSE	ERF	Thu, May 12, 2005	35.30	35.38	34.44	34.61
1117	NYSE	ERF	Wed, May 11, 2005	35.80	35.80	35.06	35.67
1116	NYSE	ERF	Tue, May 10, 2005	36.28	36.45	35.87	35.87
1115	NYSE	ERF	Mon, May 9, 2005	36.26	36.29	35.99	36.17
1114	NYSE	ERF	Fri, May 6, 2005	36.27	36.47	36.07	36.08
1113	NYSE	ERF	Thu, May 5, 2005	36.23	36.59	36.10	36.30
1112	NYSE	ERF	Wed, May 4, 2005	35.48	36.34	35.10	35.95
1111	NYSE	ERF	Tue, May 3, 2005	35.05	35.43	35.00	35.27
1110	NYSE	ERF	Mon, May 2, 2005	35.30	35.39	34.80	35.19
1109	NYSE	ERF	Fri, Apr 29, 2005	35.50	36.19	34.93	35.33
1108	NYSE	ERF	Thu, Apr 28, 2005	35.75	35.75	34.84	35.29
1107	NYSE	ERF	Wed, Apr 27, 2005	36.65	36.85	35.61	35.82
1106	NYSE	ERF	Tue, Apr 26, 2005	36.90	36.90	36.52	36.78
1105	NYSE	ERF	Mon, Apr 25, 2005	37.37	37.59	36.90	37.04
1104	NYSE	ERF	Fri, Apr 22, 2005	36.58	37.20	36.54	37.16
1103	NYSE	ERF	Thu, Apr 21, 2005	36.48	36.50	36.30	36.44
1102	NYSE	ERF	Wed, Apr 20, 2005	36.50	36.65	36.00	36.25
1101	NYSE	ERF	Tue, Apr 19, 2005	35.09	36.27	35.03	36.00
1100	NYSE	ERF	Mon, Apr 18, 2005	33.85	34.64	33.36	34.53
1099	NYSE	ERF	Fri, Apr 15, 2005	34.04	34.25	33.66	33.85
1098	NYSE	ERF	Thu, Apr 14, 2005	33.94	34.46	33.62	34.14
1097	NYSE	ERF	Wed, Apr 13, 2005	34.58	34.58	33.60	33.94
1096	NYSE	ERF	Tue, Apr 12, 2005	35.11	35.64	34.54	34.58
1095	NYSE	ERF	Mon, Apr 11, 2005	35.79	35.79	34.55	34.93
1094	NYSE	ERF	Fri, Apr 8, 2005	35.88	35.95	35.58	35.78
1093	NYSE	ERF	Thu, Apr 7, 2005	36.30	36.61	35.88	36.00
1092	NYSE	ERF	Wed, Apr 6, 2005	35.68	36.30	35.18	36.19
1091	NYSE	ERF	Tue, Apr 5, 2005	36.56	36.74	35.83	35.93
1090	NYSE	ERF	Mon, Apr 4, 2005	37.90	38.30	36.01	36.49
1089	NYSE	ERF	Fri, Apr 1, 2005	36.62	37.44	36.62	37.01
1088	NYSE	ERF	Thu, Mar 31, 2005	35.00	36.62	35.00	36.26
1087	NYSE	ERF	Wed, Mar 30, 2005	34.80	34.98	32.85	34.95
1086	NYSE	ERF	Tue, Mar 29, 2005	35.00	35.60	34.75	34.98
1085	NYSE	ERF	Mon, Mar 28, 2005	37.18	37.32	34.60	35.51
1084	NYSE	ERF	Thu, Mar 24, 2005	37.21	37.60	37.17	37.18
1083	NYSE	ERF	Wed, Mar 23, 2005	37.55	37.55	36.41	37.07
1082	NYSE	ERF	Tue, Mar 22, 2005	38.63	38.93	38.00	38.01
1081	NYSE	ERF	Mon, Mar 21, 2005	38.59	38.93	37.94	38.54
1080	NYSE	ERF	Fri, Mar 18, 2005	38.78	38.78	38.13	38.32
1079	NYSE	ERF	Thu, Mar 17, 2005	37.33	38.59	37.26	38.45
1078	NYSE	ERF	Wed, Mar 16, 2005	37.15	37.60	36.90	37.32
1077	NYSE	ERF	Tue, Mar 15, 2005	37.26	37.73	37.00	37.15
1076	NYSE	ERF	Mon, Mar 14, 2005	37.73	37.79	36.84	37.25
1075	NYSE	ERF	Fri, Mar 11, 2005	36.99	37.70	36.92	37.67
1074	NYSE	ERF	Thu, Mar 10, 2005	37.83	38.01	36.67	37.04
1073	NYSE	ERF	Wed, Mar 9, 2005	38.69	38.82	37.82	37.82
1072	NYSE	ERF	Tue, Mar 8, 2005	38.92	39.03	38.43	38.58
1071	NYSE	ERF	Mon, Mar 7, 2005	39.15	39.17	38.75	39.07
1070	NYSE	ERF	Fri, Mar 4, 2005	39.00	39.23	38.75	38.93
1069	NYSE	ERF	Thu, Mar 3, 2005	38.80	39.14	38.50	38.78
1068	NYSE	ERF	Wed, Mar 2, 2005	37.72	38.73	37.66	38.46
1067	NYSE	ERF	Tue, Mar 1, 2005	37.51	37.74	37.07	37.52
1066	NYSE	ERF	Mon, Feb 28, 2005	37.15	38.00	37.12	37.59
1065	NYSE	ERF	Fri, Feb 25, 2005	37.35	37.67	35.64	37.13
1064	NYSE	ERF	Thu, Feb 24, 2005	37.66	37.70	37.02	37.35
1063	NYSE	ERF	Wed, Feb 23, 2005	37.84	38.20	37.53	37.67
1062	NYSE	ERF	Tue, Feb 22, 2005	37.84	37.90	37.40	37.63
1061	NYSE	ERF	Fri, Feb 18, 2005	38.21	38.36	37.77	37.92
1060	NYSE	ERF	Thu, Feb 17, 2005	39.50	39.55	38.79	38.80
1059	NYSE	ERF	Wed, Feb 16, 2005	39.59	39.64	38.60	39.40
1058	NYSE	ERF	Tue, Feb 15, 2005	39.73	39.77	39.38	39.70
1057	NYSE	ERF	Mon, Feb 14, 2005	39.64	39.65	39.34	39.60
1056	NYSE	ERF	Fri, Feb 11, 2005	39.57	39.64	39.27	39.60
1055	NYSE	ERF	Thu, Feb 10, 2005	38.72	39.64	38.70	39.64
1054	NYSE	ERF	Wed, Feb 9, 2005	38.93	38.93	38.42	38.71
1053	NYSE	ERF	Tue, Feb 8, 2005	38.69	38.84	38.30	38.76
1052	NYSE	ERF	Mon, Feb 7, 2005	38.84	38.90	38.55	38.85
1051	NYSE	ERF	Fri, Feb 4, 2005	38.63	38.85	38.25	38.67
1050	NYSE	ERF	Thu, Feb 3, 2005	38.65	38.68	38.35	38.67
1049	NYSE	ERF	Wed, Feb 2, 2005	38.72	39.00	38.56	38.88
1048	NYSE	ERF	Tue, Feb 1, 2005	37.99	38.72	37.70	38.72
1047	NYSE	ERF	Mon, Jan 31, 2005	38.50	38.50	37.60	37.93
1046	NYSE	ERF	Fri, Jan 28, 2005	38.19	38.72	38.05	38.60
1045	NYSE	ERF	Thu, Jan 27, 2005	38.48	38.70	37.75	38.23
1044	NYSE	ERF	Wed, Jan 26, 2005	37.18	37.86	37.12	37.73
1043	NYSE	ERF	Tue, Jan 25, 2005	37.05	37.16	36.79	36.98
1042	NYSE	ERF	Mon, Jan 24, 2005	36.79	37.10	36.73	37.05
1041	NYSE	ERF	Fri, Jan 21, 2005	36.49	36.79	36.32	36.67
1040	NYSE	ERF	Thu, Jan 20, 2005	36.59	36.65	35.91	36.29
1039	NYSE	ERF	Wed, Jan 19, 2005	36.79	36.83	36.50	36.60
1038	NYSE	ERF	Tue, Jan 18, 2005	36.40	36.95	36.34	36.62
1037	NYSE	ERF	Fri, Jan 14, 2005	36.26	36.30	35.96	36.30
1036	NYSE	ERF	Thu, Jan 13, 2005	35.89	36.14	35.66	35.94
1035	NYSE	ERF	Wed, Jan 12, 2005	35.74	35.75	35.41	35.64
1034	NYSE	ERF	Tue, Jan 11, 2005	35.30	35.42	35.02	35.24
1033	NYSE	ERF	Mon, Jan 10, 2005	35.10	35.32	34.83	34.99
1032	NYSE	ERF	Fri, Jan 7, 2005	34.93	35.08	34.60	34.64
1031	NYSE	ERF	Thu, Jan 6, 2005	34.37	34.70	34.20	34.68
1030	NYSE	ERF	Wed, Jan 5, 2005	34.56	34.75	34.25	34.57
1029	NYSE	ERF	Tue, Jan 4, 2005	35.16	35.26	34.23	34.79
1028	NYSE	ERF	Mon, Jan 3, 2005	35.81	35.87	35.01	35.53
1027	NYSE	ERF	Fri, Dec 31, 2004	35.99	36.44	35.99	36.31
1026	NYSE	ERF	Thu, Dec 30, 2004	35.73	36.24	35.65	36.03
1025	NYSE	ERF	Wed, Dec 29, 2004	35.49	36.00	35.49	35.89
1024	NYSE	ERF	Tue, Dec 28, 2004	35.31	35.95	35.31	35.76
1023	NYSE	ERF	Mon, Dec 27, 2004	35.51	35.68	35.34	35.45
1022	NYSE	ERF	Thu, Dec 23, 2004	35.38	35.72	35.32	35.70
1021	NYSE	ERF	Wed, Dec 22, 2004	35.74	35.76	34.90	35.55
1020	NYSE	ERF	Tue, Dec 21, 2004	35.63	35.80	35.50	35.72
1019	NYSE	ERF	Mon, Dec 20, 2004	35.00	35.57	35.00	35.44
1018	NYSE	ERF	Fri, Dec 17, 2004	34.80	34.99	34.43	34.96
1017	NYSE	ERF	Thu, Dec 16, 2004	34.55	34.64	34.25	34.55
1016	NYSE	ERF	Wed, Dec 15, 2004	34.13	34.77	34.10	34.64
1015	NYSE	ERF	Tue, Dec 14, 2004	34.00	34.04	33.77	34.03
1014	NYSE	ERF	Mon, Dec 13, 2004	34.03	34.08	32.99	33.99
1013	NYSE	ERF	Fri, Dec 10, 2004	33.80	34.08	33.53	33.90
1012	NYSE	ERF	Thu, Dec 9, 2004	33.62	33.95	33.44	33.74
1011	NYSE	ERF	Wed, Dec 8, 2004	33.65	33.86	33.01	33.62
1010	NYSE	ERF	Tue, Dec 7, 2004	34.86	34.89	34.01	34.22
1009	NYSE	ERF	Mon, Dec 6, 2004	34.20	35.05	34.20	34.81
1008	NYSE	ERF	Fri, Dec 3, 2004	33.09	33.99	33.03	33.91
1007	NYSE	ERF	Thu, Dec 2, 2004	34.08	34.08	32.75	33.16
1006	NYSE	ERF	Wed, Dec 1, 2004	35.25	35.45	34.25	34.56
1005	NYSE	ERF	Tue, Nov 30, 2004	35.31	35.50	35.25	35.35
1004	NYSE	ERF	Mon, Nov 29, 2004	35.20	35.39	34.80	35.32
1003	NYSE	ERF	Fri, Nov 26, 2004	34.94	35.30	34.92	35.28
1002	NYSE	ERF	Wed, Nov 24, 2004	34.68	34.93	34.31	34.92
1001	NYSE	ERF	Tue, Nov 23, 2004	34.25	34.66	34.06	34.43
1000	NYSE	ERF	Mon, Nov 22, 2004	33.51	34.07	33.50	34.06
999	NYSE	ERF	Fri, Nov 19, 2004	33.10	33.74	33.10	33.74
998	NYSE	ERF	Thu, Nov 18, 2004	32.90	32.95	32.61	32.95
997	NYSE	ERF	Wed, Nov 17, 2004	32.61	33.15	32.59	32.90
996	NYSE	ERF	Tue, Nov 16, 2004	32.51	32.78	32.50	32.50
995	NYSE	ERF	Mon, Nov 15, 2004	32.88	32.89	32.46	32.57
994	NYSE	ERF	Fri, Nov 12, 2004	32.98	33.09	32.72	32.89
993	NYSE	ERF	Thu, Nov 11, 2004	32.90	32.96	32.51	32.96
992	NYSE	ERF	Wed, Nov 10, 2004	32.14	33.05	31.71	33.02
991	NYSE	ERF	Tue, Nov 9, 2004	32.80	32.80	32.10	32.17
990	NYSE	ERF	Mon, Nov 8, 2004	33.50	33.50	32.75	32.92
989	NYSE	ERF	Fri, Nov 5, 2004	33.49	33.85	33.41	33.77
988	NYSE	ERF	Thu, Nov 4, 2004	33.84	33.84	32.85	33.47
987	NYSE	ERF	Wed, Nov 3, 2004	32.47	33.34	32.30	33.34
986	NYSE	ERF	Tue, Nov 2, 2004	32.11	32.35	31.59	32.00
985	NYSE	ERF	Mon, Nov 1, 2004	32.91	33.37	32.01	32.17
984	NYSE	ERF	Fri, Oct 29, 2004	32.13	32.76	32.13	32.70
983	NYSE	ERF	Thu, Oct 28, 2004	32.00	32.82	31.56	32.22
982	NYSE	ERF	Wed, Oct 27, 2004	33.45	33.87	32.15	32.32
981	NYSE	ERF	Tue, Oct 26, 2004	33.73	33.77	33.15	33.48
980	NYSE	ERF	Mon, Oct 25, 2004	33.74	33.98	33.43	33.94
979	NYSE	ERF	Fri, Oct 22, 2004	33.65	33.95	33.40	33.49
978	NYSE	ERF	Thu, Oct 21, 2004	32.87	33.26	32.87	33.25
977	NYSE	ERF	Wed, Oct 20, 2004	31.59	32.95	31.59	32.66
976	NYSE	ERF	Tue, Oct 19, 2004	31.80	32.03	31.21	31.55
975	NYSE	ERF	Mon, Oct 18, 2004	32.38	32.44	32.01	32.09
974	NYSE	ERF	Fri, Oct 15, 2004	32.56	32.65	31.60	32.28
973	NYSE	ERF	Thu, Oct 14, 2004	31.97	32.84	31.91	32.56
972	NYSE	ERF	Wed, Oct 13, 2004	32.19	32.19	30.00	31.77
971	NYSE	ERF	Tue, Oct 12, 2004	34.71	34.71	32.03	32.46
970	NYSE	ERF	Mon, Oct 11, 2004	34.39	34.98	34.31	34.75
969	NYSE	ERF	Fri, Oct 8, 2004	34.20	34.25	33.57	34.15
968	NYSE	ERF	Thu, Oct 7, 2004	34.90	35.10	34.11	34.22
967	NYSE	ERF	Wed, Oct 6, 2004	34.33	34.90	34.01	34.90
966	NYSE	ERF	Tue, Oct 5, 2004	33.79	34.62	33.67	34.62
965	NYSE	ERF	Mon, Oct 4, 2004	32.81	33.37	32.76	33.36
964	NYSE	ERF	Fri, Oct 1, 2004	32.54	32.94	32.40	32.81
963	NYSE	ERF	Thu, Sep 30, 2004	32.02	32.55	31.87	32.52
962	NYSE	ERF	Wed, Sep 29, 2004	32.60	32.70	31.91	32.07
961	NYSE	ERF	Tue, Sep 28, 2004	32.65	33.03	31.91	32.67
960	NYSE	ERF	Mon, Sep 27, 2004	32.34	32.68	32.33	32.68
959	NYSE	ERF	Fri, Sep 24, 2004	31.80	32.27	31.80	32.24
958	NYSE	ERF	Thu, Sep 23, 2004	31.74	32.00	31.64	31.80
957	NYSE	ERF	Wed, Sep 22, 2004	31.40	31.69	31.24	31.59
956	NYSE	ERF	Tue, Sep 21, 2004	31.05	31.49	31.05	31.39
955	NYSE	ERF	Mon, Sep 20, 2004	30.83	31.12	30.50	31.00
954	NYSE	ERF	Fri, Sep 17, 2004	30.80	30.80	30.37	30.75
953	NYSE	ERF	Thu, Sep 16, 2004	30.74	30.88	30.62	30.81
952	NYSE	ERF	Wed, Sep 15, 2004	30.70	30.77	30.21	30.62
951	NYSE	ERF	Tue, Sep 14, 2004	30.54	30.80	30.45	30.64
950	NYSE	ERF	Mon, Sep 13, 2004	30.20	30.55	30.20	30.44
949	NYSE	ERF	Fri, Sep 10, 2004	30.15	30.35	30.15	30.20
948	NYSE	ERF	Thu, Sep 9, 2004	29.90	30.28	29.90	30.12
947	NYSE	ERF	Wed, Sep 8, 2004	29.80	30.09	29.80	29.98
946	NYSE	ERF	Tue, Sep 7, 2004	30.18	30.36	30.13	30.30
945	NYSE	ERF	Fri, Sep 3, 2004	30.15	30.17	29.98	30.10
944	NYSE	ERF	Thu, Sep 2, 2004	29.85	30.03	29.70	29.96
943	NYSE	ERF	Wed, Sep 1, 2004	29.73	29.89	29.66	29.68
942	NYSE	ERF	Tue, Aug 31, 2004	29.43	29.64	29.12	29.63
941	NYSE	ERF	Mon, Aug 30, 2004	29.44	29.60	29.20	29.36
940	NYSE	ERF	Fri, Aug 27, 2004	29.16	29.44	29.16	29.44
939	NYSE	ERF	Thu, Aug 26, 2004	29.25	29.27	29.00	29.16
938	NYSE	ERF	Wed, Aug 25, 2004	29.20	29.50	29.18	29.26
937	NYSE	ERF	Tue, Aug 24, 2004	29.34	29.40	28.58	29.20
936	NYSE	ERF	Mon, Aug 23, 2004	29.69	29.72	29.25	29.34
935	NYSE	ERF	Fri, Aug 20, 2004	29.54	29.65	29.40	29.53
934	NYSE	ERF	Thu, Aug 19, 2004	29.43	29.55	29.26	29.40
933	NYSE	ERF	Wed, Aug 18, 2004	29.52	29.55	29.28	29.30
932	NYSE	ERF	Tue, Aug 17, 2004	29.83	29.83	29.42	29.49
931	NYSE	ERF	Mon, Aug 16, 2004	29.85	29.96	29.53	29.83
930	NYSE	ERF	Fri, Aug 13, 2004	29.54	29.92	29.47	29.80
929	NYSE	ERF	Thu, Aug 12, 2004	29.51	29.56	29.33	29.42
928	NYSE	ERF	Wed, Aug 11, 2004	29.77	29.80	29.36	29.51
927	NYSE	ERF	Tue, Aug 10, 2004	29.72	29.75	29.47	29.70
926	NYSE	ERF	Mon, Aug 9, 2004	29.50	29.64	29.34	29.60
925	NYSE	ERF	Fri, Aug 6, 2004	29.93	29.93	29.33	29.48
924	NYSE	ERF	Thu, Aug 5, 2004	29.78	30.25	29.75	29.99
923	NYSE	ERF	Wed, Aug 4, 2004	30.35	30.54	29.61	29.98
922	NYSE	ERF	Tue, Aug 3, 2004	29.98	30.51	29.94	30.33
921	NYSE	ERF	Mon, Aug 2, 2004	29.74	29.99	29.69	29.90
920	NYSE	ERF	Fri, Jul 30, 2004	29.30	29.79	29.30	29.63
919	NYSE	ERF	Thu, Jul 29, 2004	29.55	29.61	29.21	29.28
918	NYSE	ERF	Wed, Jul 28, 2004	29.20	29.63	29.15	29.63
917	NYSE	ERF	Tue, Jul 27, 2004	29.05	29.28	28.86	29.20
916	NYSE	ERF	Mon, Jul 26, 2004	29.56	29.56	28.75	28.92
915	NYSE	ERF	Fri, Jul 23, 2004	29.44	29.58	29.30	29.48
914	NYSE	ERF	Thu, Jul 22, 2004	29.36	29.44	29.21	29.36
913	NYSE	ERF	Wed, Jul 21, 2004	29.17	29.30	29.01	29.12
912	NYSE	ERF	Tue, Jul 20, 2004	29.26	29.38	29.10	29.21
911	NYSE	ERF	Mon, Jul 19, 2004	29.12	29.33	29.12	29.26
910	NYSE	ERF	Fri, Jul 16, 2004	28.61	29.09	28.61	29.03
909	NYSE	ERF	Thu, Jul 15, 2004	28.56	28.87	28.56	28.63
908	NYSE	ERF	Wed, Jul 14, 2004	28.59	28.81	28.44	28.77
907	NYSE	ERF	Tue, Jul 13, 2004	28.95	28.98	28.57	28.59
906	NYSE	ERF	Mon, Jul 12, 2004	29.16	29.18	28.90	29.00
905	NYSE	ERF	Fri, Jul 9, 2004	29.05	29.23	29.03	29.19
904	NYSE	ERF	Thu, Jul 8, 2004	28.96	29.01	28.77	29.01
903	NYSE	ERF	Wed, Jul 7, 2004	29.15	29.20	28.90	28.96
902	NYSE	ERF	Tue, Jul 6, 2004	29.06	29.24	28.90	29.24
901	NYSE	ERF	Fri, Jul 2, 2004	28.72	28.97	28.52	28.84
900	NYSE	ERF	Thu, Jul 1, 2004	28.71	28.85	28.45	28.64
899	NYSE	ERF	Wed, Jun 30, 2004	28.01	28.46	27.81	28.46
898	NYSE	ERF	Tue, Jun 29, 2004	28.54	28.54	27.81	28.01
897	NYSE	ERF	Mon, Jun 28, 2004	28.46	28.53	27.80	28.34
896	NYSE	ERF	Fri, Jun 25, 2004	28.98	29.04	28.44	28.46
895	NYSE	ERF	Thu, Jun 24, 2004	28.60	29.09	28.60	28.96
894	NYSE	ERF	Wed, Jun 23, 2004	28.49	28.64	28.30	28.63
893	NYSE	ERF	Tue, Jun 22, 2004	28.00	28.41	27.95	28.37
892	NYSE	ERF	Mon, Jun 21, 2004	27.94	28.02	27.70	27.83
891	NYSE	ERF	Fri, Jun 18, 2004	27.61	27.73	27.51	27.68
890	NYSE	ERF	Thu, Jun 17, 2004	27.29	27.52	27.10	27.52
889	NYSE	ERF	Wed, Jun 16, 2004	27.18	27.25	26.95	27.22
888	NYSE	ERF	Tue, Jun 15, 2004	27.69	27.69	26.94	27.13
887	NYSE	ERF	Mon, Jun 14, 2004	27.52	27.67	27.30	27.64
886	NYSE	ERF	Thu, Jun 10, 2004	27.49	27.59	27.10	27.53
885	NYSE	ERF	Wed, Jun 9, 2004	27.71	27.73	26.92	27.42
884	NYSE	ERF	Tue, Jun 8, 2004	27.45	28.00	27.19	27.59
883	NYSE	ERF	Mon, Jun 7, 2004	26.84	27.55	26.83	27.29
882	NYSE	ERF	Fri, Jun 4, 2004	25.75	26.05	25.70	25.98
881	NYSE	ERF	Thu, Jun 3, 2004	25.65	25.71	25.59	25.61
880	NYSE	ERF	Wed, Jun 2, 2004	25.72	25.72	25.50	25.60
879	NYSE	ERF	Tue, Jun 1, 2004	25.46	25.65	25.34	25.63
878	NYSE	ERF	Fri, May 28, 2004	25.42	25.45	25.33	25.43
877	NYSE	ERF	Thu, May 27, 2004	25.68	25.68	25.41	25.45
876	NYSE	ERF	Wed, May 26, 2004	25.73	25.73	25.31	25.46
875	NYSE	ERF	Tue, May 25, 2004	25.80	26.05	25.69	25.73
874	NYSE	ERF	Mon, May 24, 2004	25.57	25.80	25.40	25.80
873	NYSE	ERF	Fri, May 21, 2004	25.57	25.57	25.25	25.51
872	NYSE	ERF	Thu, May 20, 2004	25.50	25.64	25.46	25.61
871	NYSE	ERF	Wed, May 19, 2004	25.69	25.84	25.40	25.45
870	NYSE	ERF	Tue, May 18, 2004	25.73	25.86	25.30	25.32
869	NYSE	ERF	Mon, May 17, 2004	25.77	25.90	25.62	25.73
868	NYSE	ERF	Fri, May 14, 2004	25.42	25.50	25.20	25.39
867	NYSE	ERF	Thu, May 13, 2004	25.11	25.34	25.04	25.22
866	NYSE	ERF	Wed, May 12, 2004	24.90	25.12	24.56	25.10
865	NYSE	ERF	Tue, May 11, 2004	23.66	24.56	23.66	24.55
864	NYSE	ERF	Mon, May 10, 2004	25.09	25.09	23.61	23.66
863	NYSE	ERF	Fri, May 7, 2004	25.40	25.50	25.17	25.30
862	NYSE	ERF	Thu, May 6, 2004	25.67	25.78	25.14	25.67
861	NYSE	ERF	Wed, May 5, 2004	25.90	26.00	25.75	25.85
860	NYSE	ERF	Tue, May 4, 2004	25.14	25.95	25.08	25.89
859	NYSE	ERF	Mon, May 3, 2004	25.05	25.30	25.03	25.15
858	NYSE	ERF	Fri, Apr 30, 2004	25.07	25.47	25.02	25.25
857	NYSE	ERF	Thu, Apr 29, 2004	25.18	25.60	25.06	25.14
856	NYSE	ERF	Wed, Apr 28, 2004	25.65	25.76	25.05	25.45
855	NYSE	ERF	Tue, Apr 27, 2004	25.84	26.00	25.60	25.90
854	NYSE	ERF	Mon, Apr 26, 2004	26.45	26.49	25.97	25.99
853	NYSE	ERF	Fri, Apr 23, 2004	26.35	26.44	26.01	26.28
852	NYSE	ERF	Thu, Apr 22, 2004	25.29	26.43	25.05	26.11
851	NYSE	ERF	Wed, Apr 21, 2004	25.53	25.80	25.05	25.35
850	NYSE	ERF	Tue, Apr 20, 2004	26.42	26.44	25.70	25.79
849	NYSE	ERF	Mon, Apr 19, 2004	26.57	26.75	26.32	26.57
848	NYSE	ERF	Fri, Apr 16, 2004	25.66	27.19	25.66	26.75
847	NYSE	ERF	Thu, Apr 15, 2004	25.75	25.96	25.50	25.83
846	NYSE	ERF	Wed, Apr 14, 2004	27.38	27.38	24.00	26.33
845	NYSE	ERF	Tue, Apr 13, 2004	27.51	27.86	27.33	27.55
844	NYSE	ERF	Mon, Apr 12, 2004	28.78	29.00	28.06	28.28
843	NYSE	ERF	Thu, Apr 8, 2004	29.22	29.23	28.80	29.07
842	NYSE	ERF	Wed, Apr 7, 2004	29.17	29.21	28.85	29.10
841	NYSE	ERF	Tue, Apr 6, 2004	29.60	29.74	28.68	29.22
840	NYSE	ERF	Mon, Apr 5, 2004	29.89	29.91	29.57	29.64
839	NYSE	ERF	Fri, Apr 2, 2004	29.72	29.72	29.30	29.56
838	NYSE	ERF	Thu, Apr 1, 2004	29.20	29.43	29.10	29.37
837	NYSE	ERF	Wed, Mar 31, 2004	29.37	29.61	28.90	29.31
836	NYSE	ERF	Tue, Mar 30, 2004	28.72	29.60	28.72	29.22
835	NYSE	ERF	Mon, Mar 29, 2004	28.35	28.75	28.28	28.72
834	NYSE	ERF	Fri, Mar 26, 2004	27.57	28.63	27.53	28.05
833	NYSE	ERF	Thu, Mar 25, 2004	28.00	28.09	26.65	27.74
832	NYSE	ERF	Wed, Mar 24, 2004	29.51	29.51	27.51	28.11
831	NYSE	ERF	Tue, Mar 23, 2004	29.00	29.35	29.00	29.26
830	NYSE	ERF	Mon, Mar 22, 2004	29.31	29.35	28.51	28.82
829	NYSE	ERF	Fri, Mar 19, 2004	29.50	29.83	29.20	29.27
828	NYSE	ERF	Thu, Mar 18, 2004	30.25	30.26	29.24	29.68
827	NYSE	ERF	Wed, Mar 17, 2004	30.30	30.30	30.02	30.29
826	NYSE	ERF	Tue, Mar 16, 2004	30.19	30.28	29.82	30.28
825	NYSE	ERF	Mon, Mar 15, 2004	30.10	30.33	29.98	30.08
824	NYSE	ERF	Fri, Mar 12, 2004	29.51	30.01	29.30	29.98
823	NYSE	ERF	Thu, Mar 11, 2004	29.50	29.88	28.19	29.46
822	NYSE	ERF	Wed, Mar 10, 2004	30.94	30.94	29.54	29.59
821	NYSE	ERF	Tue, Mar 9, 2004	30.90	31.03	30.77	30.94
820	NYSE	ERF	Mon, Mar 8, 2004	30.90	30.95	30.66	30.90
819	NYSE	ERF	Fri, Mar 5, 2004	30.75	30.96	30.52	30.96
818	NYSE	ERF	Thu, Mar 4, 2004	30.50	30.57	30.27	30.42
817	NYSE	ERF	Wed, Mar 3, 2004	30.70	30.72	30.04	30.50
816	NYSE	ERF	Tue, Mar 2, 2004	30.39	30.73	30.25	30.73
815	NYSE	ERF	Mon, Mar 1, 2004	30.10	30.48	30.02	30.39
814	NYSE	ERF	Fri, Feb 27, 2004	29.90	30.23	29.76	29.98
813	NYSE	ERF	Thu, Feb 26, 2004	29.40	29.84	29.33	29.82
812	NYSE	ERF	Wed, Feb 25, 2004	29.10	29.54	29.02	29.54
811	NYSE	ERF	Tue, Feb 24, 2004	28.84	29.14	28.74	29.10
810	NYSE	ERF	Mon, Feb 23, 2004	29.04	29.05	28.67	28.74
809	NYSE	ERF	Fri, Feb 20, 2004	28.69	29.02	28.50	28.87
808	NYSE	ERF	Thu, Feb 19, 2004	29.03	29.13	28.67	28.83
807	NYSE	ERF	Wed, Feb 18, 2004	29.45	29.47	28.96	29.05
806	NYSE	ERF	Tue, Feb 17, 2004	28.60	29.33	28.60	29.25
805	NYSE	ERF	Fri, Feb 13, 2004	28.98	29.13	28.33	28.54
804	NYSE	ERF	Thu, Feb 12, 2004	29.08	29.10	28.74	28.79
803	NYSE	ERF	Wed, Feb 11, 2004	28.51	29.02	28.50	28.84
802	NYSE	ERF	Tue, Feb 10, 2004	28.65	28.70	28.45	28.58
801	NYSE	ERF	Mon, Feb 9, 2004	28.12	28.50	27.83	28.42
800	NYSE	ERF	Fri, Feb 6, 2004	26.32	27.52	26.32	27.51
799	NYSE	ERF	Thu, Feb 5, 2004	27.96	28.04	25.80	26.40
798	NYSE	ERF	Wed, Feb 4, 2004	28.30	28.35	27.67	27.96
797	NYSE	ERF	Tue, Feb 3, 2004	27.75	28.22	27.62	28.14
796	NYSE	ERF	Mon, Feb 2, 2004	28.40	28.49	27.41	27.88
795	NYSE	ERF	Fri, Jan 30, 2004	27.50	28.49	27.01	28.40
794	NYSE	ERF	Thu, Jan 29, 2004	29.15	29.40	27.57	27.72
793	NYSE	ERF	Wed, Jan 28, 2004	30.04	30.16	29.00	29.15
792	NYSE	ERF	Tue, Jan 27, 2004	30.10	30.15	29.90	30.15
791	NYSE	ERF	Mon, Jan 26, 2004	30.08	30.15	29.68	30.10
790	NYSE	ERF	Fri, Jan 23, 2004	30.20	30.20	29.70	29.95
789	NYSE	ERF	Thu, Jan 22, 2004	30.20	30.45	29.85	30.27
788	NYSE	ERF	Wed, Jan 21, 2004	29.90	30.30	29.85	30.10
787	NYSE	ERF	Tue, Jan 20, 2004	28.35	29.94	28.25	29.80
786	NYSE	ERF	Fri, Jan 16, 2004	28.60	28.89	27.52	28.46
785	NYSE	ERF	Thu, Jan 15, 2004	30.71	30.71	28.40	29.10
784	NYSE	ERF	Wed, Jan 14, 2004	30.91	30.98	30.60	30.76
783	NYSE	ERF	Tue, Jan 13, 2004	31.40	31.44	30.85	31.00
782	NYSE	ERF	Mon, Jan 12, 2004	31.05	31.36	31.05	31.30
781	NYSE	ERF	Fri, Jan 9, 2004	30.94	31.45	30.94	31.14
780	NYSE	ERF	Thu, Jan 8, 2004	30.80	30.95	30.28	30.94
779	NYSE	ERF	Wed, Jan 7, 2004	31.06	31.11	30.55	30.83
778	NYSE	ERF	Tue, Jan 6, 2004	31.00	31.20	30.93	31.04
777	NYSE	ERF	Mon, Jan 5, 2004	30.60	31.05	30.52	30.93
776	NYSE	ERF	Fri, Jan 2, 2004	30.43	30.70	30.25	30.29
775	NYSE	ERF	Wed, Dec 31, 2003	30.26	30.45	30.15	30.44
774	NYSE	ERF	Tue, Dec 30, 2003	30.50	30.52	30.15	30.20
773	NYSE	ERF	Mon, Dec 29, 2003	30.81	31.09	30.46	30.47
772	NYSE	ERF	Fri, Dec 26, 2003	30.42	31.20	30.42	31.12
771	NYSE	ERF	Wed, Dec 24, 2003	30.29	30.39	30.08	30.36
770	NYSE	ERF	Tue, Dec 23, 2003	29.94	30.10	29.76	29.96
769	NYSE	ERF	Mon, Dec 22, 2003	29.45	29.88	29.35	29.87
768	NYSE	ERF	Fri, Dec 19, 2003	29.03	29.21	28.85	29.20
767	NYSE	ERF	Thu, Dec 18, 2003	28.57	29.10	28.55	29.10
766	NYSE	ERF	Wed, Dec 17, 2003	28.31	28.55	28.13	28.53
765	NYSE	ERF	Tue, Dec 16, 2003	28.51	28.63	28.35	28.46
764	NYSE	ERF	Mon, Dec 15, 2003	28.55	28.80	28.36	28.56
763	NYSE	ERF	Fri, Dec 12, 2003	28.51	28.71	28.30	28.55
762	NYSE	ERF	Thu, Dec 11, 2003	28.85	28.85	28.23	28.63
761	NYSE	ERF	Wed, Dec 10, 2003	29.06	29.14	28.91	28.99
760	NYSE	ERF	Tue, Dec 9, 2003	29.10	29.16	28.95	29.06
759	NYSE	ERF	Mon, Dec 8, 2003	29.40	29.40	28.85	29.03
758	NYSE	ERF	Fri, Dec 5, 2003	29.35	29.70	29.23	29.40
757	NYSE	ERF	Thu, Dec 4, 2003	29.12	29.18	28.76	29.18
756	NYSE	ERF	Wed, Dec 3, 2003	28.66	29.20	28.58	29.12
755	NYSE	ERF	Tue, Dec 2, 2003	28.00	28.70	27.95	28.66
754	NYSE	ERF	Mon, Dec 1, 2003	27.99	28.12	27.80	27.94
753	NYSE	ERF	Fri, Nov 28, 2003	27.80	27.90	27.80	27.90
752	NYSE	ERF	Wed, Nov 26, 2003	27.72	27.77	27.62	27.72
751	NYSE	ERF	Tue, Nov 25, 2003	27.46	27.55	27.36	27.54
750	NYSE	ERF	Mon, Nov 24, 2003	27.63	27.63	27.24	27.35
749	NYSE	ERF	Fri, Nov 21, 2003	27.64	27.68	27.53	27.68
748	NYSE	ERF	Thu, Nov 20, 2003	27.73	27.73	27.60	27.68
747	NYSE	ERF	Wed, Nov 19, 2003	27.73	27.73	27.50	27.61
746	NYSE	ERF	Tue, Nov 18, 2003	27.70	27.74	27.40	27.73
745	NYSE	ERF	Mon, Nov 17, 2003	28.02	28.02	27.25	27.70
744	NYSE	ERF	Fri, Nov 14, 2003	28.16	28.25	27.91	28.02
743	NYSE	ERF	Thu, Nov 13, 2003	28.10	28.20	27.80	28.04
742	NYSE	ERF	Wed, Nov 12, 2003	27.85	28.15	27.70	28.15
741	NYSE	ERF	Tue, Nov 11, 2003	27.82	27.90	27.60	27.69
740	NYSE	ERF	Mon, Nov 10, 2003	27.95	28.09	27.76	27.82
739	NYSE	ERF	Fri, Nov 7, 2003	27.53	28.00	27.53	27.98
738	NYSE	ERF	Thu, Nov 6, 2003	27.68	27.77	27.47	27.67
737	NYSE	ERF	Wed, Nov 5, 2003	27.55	27.83	27.55	27.78
736	NYSE	ERF	Tue, Nov 4, 2003	27.70	27.86	27.35	27.86
735	NYSE	ERF	Mon, Nov 3, 2003	27.00	27.77	26.86	27.75
734	NYSE	ERF	Fri, Oct 31, 2003	27.70	27.70	26.67	27.06
733	NYSE	ERF	Thu, Oct 30, 2003	28.21	28.28	27.85	27.92
732	NYSE	ERF	Wed, Oct 29, 2003	28.19	28.24	28.06	28.22
731	NYSE	ERF	Tue, Oct 28, 2003	28.17	28.20	28.00	28.18
730	NYSE	ERF	Mon, Oct 27, 2003	28.11	28.24	28.05	28.24
729	NYSE	ERF	Fri, Oct 24, 2003	28.20	28.22	27.95	28.07
728	NYSE	ERF	Thu, Oct 23, 2003	28.00	28.27	27.90	28.20
727	NYSE	ERF	Wed, Oct 22, 2003	28.02	28.43	27.93	28.21
726	NYSE	ERF	Tue, Oct 21, 2003	27.59	27.85	27.25	27.75
725	NYSE	ERF	Mon, Oct 20, 2003	28.05	28.06	27.65	27.68
724	NYSE	ERF	Fri, Oct 17, 2003	28.14	28.23	27.82	28.10
723	NYSE	ERF	Thu, Oct 16, 2003	27.86	28.19	27.80	28.14
722	NYSE	ERF	Wed, Oct 15, 2003	27.82	27.96	27.73	27.86
721	NYSE	ERF	Tue, Oct 14, 2003	28.01	28.01	27.64	27.76
720	NYSE	ERF	Mon, Oct 13, 2003	27.70	28.48	27.65	28.39
719	NYSE	ERF	Fri, Oct 10, 2003	27.31	27.80	27.31	27.80
718	NYSE	ERF	Thu, Oct 9, 2003	27.20	27.30	27.06	27.25
717	NYSE	ERF	Wed, Oct 8, 2003	27.45	27.47	26.90	27.18
716	NYSE	ERF	Tue, Oct 7, 2003	27.49	27.70	27.39	27.60
715	NYSE	ERF	Mon, Oct 6, 2003	26.99	27.44	26.99	27.35
714	NYSE	ERF	Fri, Oct 3, 2003	26.85	26.98	26.75	26.98
713	NYSE	ERF	Thu, Oct 2, 2003	26.57	26.88	26.31	26.75
712	NYSE	ERF	Wed, Oct 1, 2003	26.16	26.50	26.13	26.49
711	NYSE	ERF	Tue, Sep 30, 2003	26.18	26.35	26.00	26.05
710	NYSE	ERF	Mon, Sep 29, 2003	25.78	26.35	25.76	26.35
709	NYSE	ERF	Fri, Sep 26, 2003	25.70	25.78	25.50	25.62
708	NYSE	ERF	Thu, Sep 25, 2003	26.09	26.13	25.70	25.70
707	NYSE	ERF	Wed, Sep 24, 2003	25.35	25.85	25.30	25.61
706	NYSE	ERF	Tue, Sep 23, 2003	24.11	25.05	23.76	25.00
705	NYSE	ERF	Mon, Sep 22, 2003	24.75	24.75	22.94	24.11
704	NYSE	ERF	Fri, Sep 19, 2003	24.73	25.10	24.67	24.93
703	NYSE	ERF	Thu, Sep 18, 2003	25.80	25.84	24.70	25.19
702	NYSE	ERF	Wed, Sep 17, 2003	26.24	26.29	25.80	25.80
701	NYSE	ERF	Tue, Sep 16, 2003	25.84	26.17	25.80	26.17
700	NYSE	ERF	Mon, Sep 15, 2003	26.02	26.02	25.75	25.83
699	NYSE	ERF	Fri, Sep 12, 2003	25.98	26.10	25.85	26.02
698	NYSE	ERF	Thu, Sep 11, 2003	25.70	26.00	25.64	26.00
697	NYSE	ERF	Wed, Sep 10, 2003	25.74	25.80	25.60	25.70
696	NYSE	ERF	Tue, Sep 9, 2003	26.05	26.08	25.80	25.90
695	NYSE	ERF	Mon, Sep 8, 2003	26.00	26.15	25.85	26.05
694	NYSE	ERF	Fri, Sep 5, 2003	26.47	26.47	26.24	26.37
693	NYSE	ERF	Thu, Sep 4, 2003	26.60	26.60	26.00	26.33
692	NYSE	ERF	Wed, Sep 3, 2003	26.59	26.68	26.34	26.60
691	NYSE	ERF	Tue, Sep 2, 2003	26.51	26.74	26.41	26.41
690	NYSE	ERF	Fri, Aug 29, 2003	26.05	26.49	26.05	26.41
689	NYSE	ERF	Thu, Aug 28, 2003	25.65	26.01	25.45	26.00
688	NYSE	ERF	Wed, Aug 27, 2003	25.63	25.68	25.50	25.62
687	NYSE	ERF	Tue, Aug 26, 2003	25.46	25.69	25.25	25.68
686	NYSE	ERF	Mon, Aug 25, 2003	25.50	25.60	25.32	25.44
685	NYSE	ERF	Fri, Aug 22, 2003	25.64	25.64	25.31	25.50
684	NYSE	ERF	Thu, Aug 21, 2003	25.24	25.62	25.11	25.59
683	NYSE	ERF	Wed, Aug 20, 2003	25.50	25.60	24.95	25.07
682	NYSE	ERF	Tue, Aug 19, 2003	25.86	25.89	25.25	25.34
681	NYSE	ERF	Mon, Aug 18, 2003	25.60	25.90	25.52	25.61
680	NYSE	ERF	Fri, Aug 15, 2003	25.27	25.50	25.20	25.50
679	NYSE	ERF	Thu, Aug 14, 2003	25.48	25.48	25.00	25.20
678	NYSE	ERF	Wed, Aug 13, 2003	25.44	25.50	25.27	25.47
677	NYSE	ERF	Tue, Aug 12, 2003	25.17	25.43	25.11	25.41
676	NYSE	ERF	Mon, Aug 11, 2003	24.99	25.22	24.93	25.11
675	NYSE	ERF	Fri, Aug 8, 2003	24.76	25.00	24.64	24.92
674	NYSE	ERF	Thu, Aug 7, 2003	24.38	24.76	24.32	24.76
673	NYSE	ERF	Wed, Aug 6, 2003	24.30	24.39	24.16	24.30
672	NYSE	ERF	Tue, Aug 5, 2003	24.59	24.60	24.27	24.60
671	NYSE	ERF	Mon, Aug 4, 2003	24.48	24.80	24.41	24.79
670	NYSE	ERF	Fri, Aug 1, 2003	24.27	24.41	24.18	24.37
669	NYSE	ERF	Thu, Jul 31, 2003	24.25	24.28	23.95	24.21
668	NYSE	ERF	Wed, Jul 30, 2003	24.30	24.30	24.00	24.22
667	NYSE	ERF	Tue, Jul 29, 2003	24.25	24.31	24.16	24.30
666	NYSE	ERF	Mon, Jul 28, 2003	24.02	24.12	23.81	24.11
665	NYSE	ERF	Fri, Jul 25, 2003	24.02	24.05	23.75	24.02
664	NYSE	ERF	Thu, Jul 24, 2003	23.89	24.00	23.75	23.84
663	NYSE	ERF	Wed, Jul 23, 2003	23.20	23.80	23.15	23.75
662	NYSE	ERF	Tue, Jul 22, 2003	23.16	23.24	22.86	23.16
661	NYSE	ERF	Mon, Jul 21, 2003	23.16	23.17	22.91	23.15
660	NYSE	ERF	Fri, Jul 18, 2003	22.82	22.94	22.75	22.91
659	NYSE	ERF	Thu, Jul 17, 2003	22.59	22.99	22.28	22.90
658	NYSE	ERF	Wed, Jul 16, 2003	23.32	23.35	22.80	22.90
657	NYSE	ERF	Tue, Jul 15, 2003	23.65	23.69	23.16	23.28
656	NYSE	ERF	Mon, Jul 14, 2003	23.80	23.85	23.26	23.66
655	NYSE	ERF	Fri, Jul 11, 2003	24.00	24.00	23.76	23.98
654	NYSE	ERF	Thu, Jul 10, 2003	23.98	24.00	23.65	23.98
653	NYSE	ERF	Wed, Jul 9, 2003	23.69	23.98	23.60	23.97
652	NYSE	ERF	Tue, Jul 8, 2003	23.57	23.62	23.05	23.62
651	NYSE	ERF	Mon, Jul 7, 2003	23.78	23.88	23.70	23.70
650	NYSE	ERF	Thu, Jul 3, 2003	23.85	23.85	23.55	23.73
649	NYSE	ERF	Wed, Jul 2, 2003	23.40	23.68	23.21	23.60
648	NYSE	ERF	Tue, Jul 1, 2003	23.44	23.74	23.30	23.40
647	NYSE	ERF	Mon, Jun 30, 2003	23.31	23.31	22.90	23.24
646	NYSE	ERF	Fri, Jun 27, 2003	23.06	23.21	22.95	23.20
645	NYSE	ERF	Thu, Jun 26, 2003	23.30	23.62	22.99	23.05
644	NYSE	ERF	Wed, Jun 25, 2003	23.61	23.92	23.51	23.62
643	NYSE	ERF	Tue, Jun 24, 2003	23.49	23.60	23.29	23.44
642	NYSE	ERF	Mon, Jun 23, 2003	23.00	23.50	22.90	23.44
641	NYSE	ERF	Fri, Jun 20, 2003	22.05	22.83	22.01	22.77
640	NYSE	ERF	Thu, Jun 19, 2003	22.19	22.23	22.00	22.16
639	NYSE	ERF	Wed, Jun 18, 2003	22.75	22.75	21.86	22.48
638	NYSE	ERF	Tue, Jun 17, 2003	22.70	23.00	20.05	22.75
637	NYSE	ERF	Mon, Jun 16, 2003	23.95	23.99	22.60	22.77
636	NYSE	ERF	Fri, Jun 13, 2003	23.79	24.00	23.55	23.97
635	NYSE	ERF	Thu, Jun 12, 2003	24.18	24.18	23.50	23.80
634	NYSE	ERF	Wed, Jun 11, 2003	23.94	24.10	23.85	24.04
633	NYSE	ERF	Tue, Jun 10, 2003	22.78	23.90	22.75	23.83
632	NYSE	ERF	Mon, Jun 9, 2003	22.00	23.40	22.00	23.23
631	NYSE	ERF	Fri, Jun 6, 2003	24.38	24.38	22.22	23.70
630	NYSE	ERF	Thu, Jun 5, 2003	24.52	24.75	24.20	24.60
629	NYSE	ERF	Wed, Jun 4, 2003	24.97	25.16	24.00	24.63
628	NYSE	ERF	Tue, Jun 3, 2003	24.59	24.89	24.52	24.80
627	NYSE	ERF	Mon, Jun 2, 2003	24.34	24.89	24.20	24.55
626	NYSE	ERF	Fri, May 30, 2003	23.93	24.10	23.75	24.10
625	NYSE	ERF	Thu, May 29, 2003	23.50	23.90	23.43	23.75
624	NYSE	ERF	Wed, May 28, 2003	23.55	23.70	23.28	23.50
623	NYSE	ERF	Tue, May 27, 2003	22.95	23.35	22.91	23.30
622	NYSE	ERF	Fri, May 23, 2003	22.75	22.95	22.40	22.90
621	NYSE	ERF	Thu, May 22, 2003	23.11	23.11	22.60	22.75
620	NYSE	ERF	Wed, May 21, 2003	22.80	23.21	22.70	23.11
619	NYSE	ERF	Tue, May 20, 2003	22.71	22.85	22.30	22.71
618	NYSE	ERF	Mon, May 19, 2003	24.25	24.25	22.65	22.73
617	NYSE	ERF	Fri, May 16, 2003	21.99	22.32	21.97	22.32
616	NYSE	ERF	Thu, May 15, 2003	21.84	21.95	21.71	21.79
615	NYSE	ERF	Wed, May 14, 2003	21.72	21.84	21.65	21.84
614	NYSE	ERF	Tue, May 13, 2003	21.53	21.64	21.41	21.60
613	NYSE	ERF	Mon, May 12, 2003	21.36	21.66	21.36	21.53
612	NYSE	ERF	Fri, May 9, 2003	20.97	21.34	20.90	21.25
611	NYSE	ERF	Thu, May 8, 2003	20.81	20.95	20.40	20.84
610	NYSE	ERF	Wed, May 7, 2003	21.12	21.20	20.85	20.93
609	NYSE	ERF	Tue, May 6, 2003	21.02	21.39	21.02	21.37
608	NYSE	ERF	Mon, May 5, 2003	21.06	21.21	20.92	21.15
607	NYSE	ERF	Fri, May 2, 2003	20.65	21.00	20.61	21.00
606	NYSE	ERF	Thu, May 1, 2003	20.20	20.62	20.15	20.60
605	NYSE	ERF	Wed, Apr 30, 2003	19.79	20.07	19.74	20.05
604	NYSE	ERF	Tue, Apr 29, 2003	19.79	19.79	19.30	19.73
603	NYSE	ERF	Mon, Apr 28, 2003	19.75	19.85	19.64	19.65
602	NYSE	ERF	Fri, Apr 25, 2003	19.50	19.79	19.45	19.69
601	NYSE	ERF	Thu, Apr 24, 2003	19.56	19.58	19.35	19.45
600	NYSE	ERF	Wed, Apr 23, 2003	19.58	19.65	19.46	19.56
599	NYSE	ERF	Tue, Apr 22, 2003	19.44	19.56	19.40	19.51
598	NYSE	ERF	Mon, Apr 21, 2003	19.21	19.37	19.16	19.37
597	NYSE	ERF	Thu, Apr 17, 2003	19.23	19.29	19.11	19.15
596	NYSE	ERF	Wed, Apr 16, 2003	19.36	19.37	19.14	19.16
595	NYSE	ERF	Tue, Apr 15, 2003	19.24	19.32	19.15	19.24
594	NYSE	ERF	Mon, Apr 14, 2003	19.10	19.23	19.03	19.17
593	NYSE	ERF	Fri, Apr 11, 2003	18.94	19.05	18.81	19.03
592	NYSE	ERF	Thu, Apr 10, 2003	18.81	19.00	18.75	19.00
591	NYSE	ERF	Wed, Apr 9, 2003	18.56	18.75	18.55	18.75
590	NYSE	ERF	Tue, Apr 8, 2003	18.70	18.70	18.44	18.55
589	NYSE	ERF	Mon, Apr 7, 2003	18.60	18.86	18.51	18.76
588	NYSE	ERF	Fri, Apr 4, 2003	18.99	19.00	18.80	18.92
587	NYSE	ERF	Thu, Apr 3, 2003	19.07	19.09	18.87	18.99
586	NYSE	ERF	Wed, Apr 2, 2003	19.08	19.09	18.71	19.04
585	NYSE	ERF	Tue, Apr 1, 2003	19.26	19.26	19.08	19.13
584	NYSE	ERF	Mon, Mar 31, 2003	19.01	19.23	19.01	19.16
583	NYSE	ERF	Fri, Mar 28, 2003	18.89	18.99	18.88	18.98
582	NYSE	ERF	Thu, Mar 27, 2003	18.79	18.97	18.79	18.89
581	NYSE	ERF	Wed, Mar 26, 2003	18.83	18.88	18.69	18.70
580	NYSE	ERF	Tue, Mar 25, 2003	18.79	18.88	18.52	18.63
579	NYSE	ERF	Mon, Mar 24, 2003	18.11	18.73	18.11	18.65
578	NYSE	ERF	Fri, Mar 21, 2003	18.42	18.42	18.00	18.11
577	NYSE	ERF	Thu, Mar 20, 2003	18.33	18.60	18.22	18.51
576	NYSE	ERF	Wed, Mar 19, 2003	18.17	18.34	18.01	18.34
575	NYSE	ERF	Tue, Mar 18, 2003	18.01	18.20	17.50	18.14
574	NYSE	ERF	Mon, Mar 17, 2003	18.73	18.76	18.21	18.24
573	NYSE	ERF	Fri, Mar 14, 2003	18.50	18.75	18.36	18.75
572	NYSE	ERF	Thu, Mar 13, 2003	18.78	18.83	18.55	18.62
571	NYSE	ERF	Wed, Mar 12, 2003	19.05	19.06	18.78	18.83
570	NYSE	ERF	Tue, Mar 11, 2003	19.01	19.28	18.94	19.14
569	NYSE	ERF	Mon, Mar 10, 2003	18.74	19.40	18.46	19.05
568	NYSE	ERF	Fri, Mar 7, 2003	19.41	19.49	18.72	18.88
567	NYSE	ERF	Thu, Mar 6, 2003	19.60	19.62	19.35	19.49
566	NYSE	ERF	Wed, Mar 5, 2003	19.67	19.83	19.64	19.81
565	NYSE	ERF	Tue, Mar 4, 2003	19.49	19.65	19.47	19.64
564	NYSE	ERF	Mon, Mar 3, 2003	19.41	19.47	19.31	19.45
563	NYSE	ERF	Fri, Feb 28, 2003	19.17	19.38	19.16	19.34
562	NYSE	ERF	Thu, Feb 27, 2003	19.03	19.20	18.91	19.15
561	NYSE	ERF	Wed, Feb 26, 2003	19.00	19.10	18.82	19.03
560	NYSE	ERF	Tue, Feb 25, 2003	19.00	19.10	18.90	19.00
559	NYSE	ERF	Mon, Feb 24, 2003	18.85	19.16	18.80	18.94
558	NYSE	ERF	Fri, Feb 21, 2003	18.48	18.85	18.45	18.84
557	NYSE	ERF	Thu, Feb 20, 2003	18.23	18.46	18.15	18.45
556	NYSE	ERF	Wed, Feb 19, 2003	18.00	18.19	18.00	18.14
555	NYSE	ERF	Tue, Feb 18, 2003	18.09	18.19	17.95	17.95
554	NYSE	ERF	Fri, Feb 14, 2003	18.29	18.30	17.87	18.04
553	NYSE	ERF	Thu, Feb 13, 2003	18.32	18.37	18.15	18.25
552	NYSE	ERF	Wed, Feb 12, 2003	18.00	18.39	18.00	18.32
551	NYSE	ERF	Tue, Feb 11, 2003	17.51	18.06	17.51	17.99
550	NYSE	ERF	Mon, Feb 10, 2003	17.06	18.11	17.05	17.87
549	NYSE	ERF	Fri, Feb 7, 2003	18.86	18.86	18.38	18.44
548	NYSE	ERF	Thu, Feb 6, 2003	18.83	18.98	18.82	18.86
547	NYSE	ERF	Wed, Feb 5, 2003	19.17	19.19	19.01	19.06
546	NYSE	ERF	Tue, Feb 4, 2003	19.06	19.12	18.96	19.08
545	NYSE	ERF	Mon, Feb 3, 2003	18.99	19.00	18.81	19.00
544	NYSE	ERF	Fri, Jan 31, 2003	18.85	18.98	18.75	18.96
543	NYSE	ERF	Thu, Jan 30, 2003	18.78	18.90	18.67	18.85
542	NYSE	ERF	Wed, Jan 29, 2003	18.60	18.82	18.56	18.71
541	NYSE	ERF	Tue, Jan 28, 2003	18.75	18.80	18.52	18.52
540	NYSE	ERF	Mon, Jan 27, 2003	18.96	18.99	18.75	18.76
539	NYSE	ERF	Fri, Jan 24, 2003	18.92	18.99	18.75	18.95
538	NYSE	ERF	Thu, Jan 23, 2003	18.67	18.92	18.63	18.88
537	NYSE	ERF	Wed, Jan 22, 2003	18.74	18.81	18.31	18.68
536	NYSE	ERF	Tue, Jan 21, 2003	18.90	18.90	18.55	18.70
535	NYSE	ERF	Fri, Jan 17, 2003	18.79	18.90	18.75	18.86
534	NYSE	ERF	Thu, Jan 16, 2003	18.75	18.90	18.65	18.76
533	NYSE	ERF	Wed, Jan 15, 2003	18.47	18.73	18.40	18.71
532	NYSE	ERF	Tue, Jan 14, 2003	18.40	18.46	18.26	18.44
531	NYSE	ERF	Mon, Jan 13, 2003	18.30	18.42	18.12	18.29
530	NYSE	ERF	Fri, Jan 10, 2003	18.10	18.19	17.91	18.19
529	NYSE	ERF	Thu, Jan 9, 2003	18.00	18.20	17.96	18.10
528	NYSE	ERF	Wed, Jan 8, 2003	17.91	17.95	17.85	17.95
527	NYSE	ERF	Tue, Jan 7, 2003	17.95	17.98	17.80	17.81
526	NYSE	ERF	Mon, Jan 6, 2003	18.02	18.04	17.92	17.99
525	NYSE	ERF	Fri, Jan 3, 2003	17.99	18.02	17.88	18.02
524	NYSE	ERF	Thu, Jan 2, 2003	17.70	17.95	17.67	17.94
523	NYSE	ERF	Tue, Dec 31, 2002	17.72	17.84	17.55	17.75
522	NYSE	ERF	Mon, Dec 30, 2002	18.03	18.03	17.51	17.71
521	NYSE	ERF	Fri, Dec 27, 2002	18.13	18.13	17.85	17.99
520	NYSE	ERF	Thu, Dec 26, 2002	18.01	18.49	17.97	18.34
519	NYSE	ERF	Tue, Dec 24, 2002	18.00	18.02	17.91	18.00
518	NYSE	ERF	Mon, Dec 23, 2002	17.90	18.06	17.88	17.99
517	NYSE	ERF	Fri, Dec 20, 2002	17.81	17.89	17.70	17.84
516	NYSE	ERF	Thu, Dec 19, 2002	17.84	17.94	17.72	17.79
515	NYSE	ERF	Wed, Dec 18, 2002	17.60	17.84	17.50	17.83
514	NYSE	ERF	Tue, Dec 17, 2002	17.53	17.65	17.41	17.59
513	NYSE	ERF	Mon, Dec 16, 2002	17.52	17.61	17.40	17.50
512	NYSE	ERF	Fri, Dec 13, 2002	17.54	17.56	17.30	17.52
511	NYSE	ERF	Thu, Dec 12, 2002	17.09	17.47	17.05	17.34
510	NYSE	ERF	Wed, Dec 11, 2002	17.00	17.10	16.95	17.08
509	NYSE	ERF	Tue, Dec 10, 2002	16.90	17.00	16.85	16.98
508	NYSE	ERF	Mon, Dec 9, 2002	16.90	17.09	16.80	16.80
507	NYSE	ERF	Fri, Dec 6, 2002	16.90	16.90	16.71	16.81
506	NYSE	ERF	Thu, Dec 5, 2002	16.94	17.07	16.80	17.05
505	NYSE	ERF	Wed, Dec 4, 2002	16.81	16.88	16.70	16.85
504	NYSE	ERF	Tue, Dec 3, 2002	16.69	16.79	16.63	16.79
503	NYSE	ERF	Mon, Dec 2, 2002	16.72	16.73	16.47	16.68
502	NYSE	ERF	Fri, Nov 29, 2002	16.50	16.65	16.46	16.63
501	NYSE	ERF	Wed, Nov 27, 2002	16.40	16.53	16.35	16.45
500	NYSE	ERF	Tue, Nov 26, 2002	16.30	16.52	16.15	16.30
499	NYSE	ERF	Mon, Nov 25, 2002	17.11	17.12	16.54	16.54
498	NYSE	ERF	Fri, Nov 22, 2002	17.36	17.36	17.14	17.15
497	NYSE	ERF	Thu, Nov 21, 2002	17.13	17.38	17.13	17.36
496	NYSE	ERF	Wed, Nov 20, 2002	17.22	17.24	17.10	17.12
495	NYSE	ERF	Tue, Nov 19, 2002	17.15	17.35	17.11	17.20
494	NYSE	ERF	Mon, Nov 18, 2002	17.40	17.41	17.00	17.14
493	NYSE	ERF	Fri, Nov 15, 2002	17.47	17.60	17.35	17.41
492	NYSE	ERF	Thu, Nov 14, 2002	17.46	17.48	17.30	17.47
491	NYSE	ERF	Wed, Nov 13, 2002	17.66	17.66	17.37	17.46
490	NYSE	ERF	Tue, Nov 12, 2002	17.82	17.82	17.60	17.65
489	NYSE	ERF	Mon, Nov 11, 2002	17.91	17.95	17.80	17.80
488	NYSE	ERF	Fri, Nov 8, 2002	17.95	17.95	17.81	17.84
487	NYSE	ERF	Thu, Nov 7, 2002	17.79	17.95	17.79	17.90
486	NYSE	ERF	Wed, Nov 6, 2002	18.00	18.00	17.65	17.79
485	NYSE	ERF	Tue, Nov 5, 2002	18.30	18.35	18.02	18.02
484	NYSE	ERF	Mon, Nov 4, 2002	18.21	18.30	18.08	18.27
483	NYSE	ERF	Fri, Nov 1, 2002	18.10	18.20	18.01	18.16
482	NYSE	ERF	Thu, Oct 31, 2002	18.11	18.11	17.96	18.10
481	NYSE	ERF	Wed, Oct 30, 2002	18.04	18.08	17.90	18.08
480	NYSE	ERF	Tue, Oct 29, 2002	18.12	18.12	17.95	17.98
479	NYSE	ERF	Mon, Oct 28, 2002	18.10	18.19	18.02	18.07
478	NYSE	ERF	Fri, Oct 25, 2002	17.85	18.04	17.85	18.00
477	NYSE	ERF	Thu, Oct 24, 2002	17.75	17.94	17.70	17.89
476	NYSE	ERF	Wed, Oct 23, 2002	17.84	17.87	17.71	17.80
475	NYSE	ERF	Tue, Oct 22, 2002	17.76	17.95	17.72	17.81
474	NYSE	ERF	Mon, Oct 21, 2002	18.03	18.04	17.70	17.75
473	NYSE	ERF	Fri, Oct 18, 2002	17.94	18.02	17.90	17.99
472	NYSE	ERF	Thu, Oct 17, 2002	17.95	18.09	17.93	17.94
471	NYSE	ERF	Wed, Oct 16, 2002	17.81	17.98	17.70	17.92
470	NYSE	ERF	Tue, Oct 15, 2002	18.00	18.00	17.77	17.81
469	NYSE	ERF	Mon, Oct 14, 2002	17.89	18.10	17.66	18.00
468	NYSE	ERF	Fri, Oct 11, 2002	17.50	17.73	17.30	17.64
467	NYSE	ERF	Thu, Oct 10, 2002	17.50	17.74	17.23	17.47
466	NYSE	ERF	Wed, Oct 9, 2002	17.72	17.72	17.31	17.50
465	NYSE	ERF	Tue, Oct 8, 2002	17.97	18.00	17.66	17.70
464	NYSE	ERF	Mon, Oct 7, 2002	18.09	18.15	18.00	18.03
463	NYSE	ERF	Fri, Oct 4, 2002	17.99	18.04	17.76	18.00
462	NYSE	ERF	Thu, Oct 3, 2002	18.11	18.13	17.90	17.99
461	NYSE	ERF	Wed, Oct 2, 2002	18.03	18.19	18.00	18.11
460	NYSE	ERF	Tue, Oct 1, 2002	17.95	18.10	17.89	18.02
459	NYSE	ERF	Mon, Sep 30, 2002	17.95	17.95	17.76	17.87
458	NYSE	ERF	Fri, Sep 27, 2002	17.95	17.95	17.80	17.84
457	NYSE	ERF	Thu, Sep 26, 2002	17.80	17.99	17.80	17.95
456	NYSE	ERF	Wed, Sep 25, 2002	17.66	17.78	17.55	17.78
455	NYSE	ERF	Tue, Sep 24, 2002	17.60	17.64	17.53	17.64
454	NYSE	ERF	Mon, Sep 23, 2002	17.69	17.69	17.52	17.59
453	NYSE	ERF	Fri, Sep 20, 2002	17.74	17.79	17.62	17.65
452	NYSE	ERF	Thu, Sep 19, 2002	17.56	17.71	17.51	17.66
451	NYSE	ERF	Wed, Sep 18, 2002	17.35	17.54	17.29	17.52
450	NYSE	ERF	Tue, Sep 17, 2002	17.45	17.49	17.30	17.38
449	NYSE	ERF	Mon, Sep 16, 2002	17.40	17.69	17.31	17.61
448	NYSE	ERF	Fri, Sep 13, 2002	17.38	17.38	17.25	17.29
447	NYSE	ERF	Thu, Sep 12, 2002	17.35	17.35	17.10	17.26
446	NYSE	ERF	Wed, Sep 11, 2002	17.48	17.48	17.33	17.39
445	NYSE	ERF	Tue, Sep 10, 2002	17.49	17.50	17.30	17.33
444	NYSE	ERF	Mon, Sep 9, 2002	17.50	17.50	17.33	17.44
443	NYSE	ERF	Fri, Sep 6, 2002	17.45	17.49	17.35	17.48
442	NYSE	ERF	Thu, Sep 5, 2002	17.40	17.51	17.37	17.48
441	NYSE	ERF	Wed, Sep 4, 2002	17.52	17.52	17.37	17.40
440	NYSE	ERF	Tue, Sep 3, 2002	17.60	17.60	17.41	17.49
439	NYSE	ERF	Fri, Aug 30, 2002	17.45	17.52	17.36	17.50
438	NYSE	ERF	Thu, Aug 29, 2002	17.40	17.45	17.25	17.45
437	NYSE	ERF	Wed, Aug 28, 2002	17.47	17.47	17.35	17.43
436	NYSE	ERF	Tue, Aug 27, 2002	17.53	17.54	17.43	17.51
435	NYSE	ERF	Mon, Aug 26, 2002	17.47	17.49	17.37	17.48
434	NYSE	ERF	Fri, Aug 23, 2002	17.42	17.48	17.40	17.42
433	NYSE	ERF	Thu, Aug 22, 2002	17.55	17.55	17.36	17.41
432	NYSE	ERF	Wed, Aug 21, 2002	17.81	17.93	17.61	17.88
431	NYSE	ERF	Tue, Aug 20, 2002	17.93	17.93	17.73	17.81
430	NYSE	ERF	Mon, Aug 19, 2002	18.07	18.07	17.81	17.86
429	NYSE	ERF	Fri, Aug 16, 2002	18.18	18.27	17.90	17.91
428	NYSE	ERF	Thu, Aug 15, 2002	17.90	18.10	17.86	18.08
427	NYSE	ERF	Wed, Aug 14, 2002	18.00	18.06	17.87	17.94
426	NYSE	ERF	Tue, Aug 13, 2002	17.90	17.96	17.71	17.96
425	NYSE	ERF	Mon, Aug 12, 2002	17.85	17.85	17.56	17.80
424	NYSE	ERF	Fri, Aug 9, 2002	17.89	18.24	17.73	17.85
423	NYSE	ERF	Thu, Aug 8, 2002	17.89	17.89	17.50	17.83
422	NYSE	ERF	Wed, Aug 7, 2002	17.89	17.89	17.65	17.77
421	NYSE	ERF	Tue, Aug 6, 2002	17.81	17.84	17.50	17.84
420	NYSE	ERF	Mon, Aug 5, 2002	17.86	18.07	17.67	17.81
419	NYSE	ERF	Fri, Aug 2, 2002	17.25	17.65	17.20	17.35
418	NYSE	ERF	Thu, Aug 1, 2002	17.15	17.34	17.10	17.20
417	NYSE	ERF	Wed, Jul 31, 2002	17.19	17.19	17.05	17.14
416	NYSE	ERF	Tue, Jul 30, 2002	17.14	17.20	17.00	17.12
415	NYSE	ERF	Mon, Jul 29, 2002	16.59	17.12	16.50	17.07
414	NYSE	ERF	Fri, Jul 26, 2002	16.29	16.50	16.26	16.35
413	NYSE	ERF	Thu, Jul 25, 2002	16.46	16.64	16.00	16.23
412	NYSE	ERF	Wed, Jul 24, 2002	16.44	16.63	14.94	16.55
411	NYSE	ERF	Tue, Jul 23, 2002	17.25	17.27	16.82	17.02
410	NYSE	ERF	Mon, Jul 22, 2002	17.75	17.79	17.00	17.40
409	NYSE	ERF	Fri, Jul 19, 2002	18.49	18.50	17.92	18.07
408	NYSE	ERF	Thu, Jul 18, 2002	18.44	18.46	18.27	18.43
407	NYSE	ERF	Wed, Jul 17, 2002	18.16	18.43	18.04	18.36
406	NYSE	ERF	Tue, Jul 16, 2002	17.65	18.24	17.65	18.16
405	NYSE	ERF	Mon, Jul 15, 2002	17.48	17.65	16.85	17.50
404	NYSE	ERF	Fri, Jul 12, 2002	18.45	18.55	16.00	17.58
403	NYSE	ERF	Thu, Jul 11, 2002	19.08	19.08	18.44	18.56
402	NYSE	ERF	Wed, Jul 10, 2002	19.01	19.09	18.90	19.08
401	NYSE	ERF	Tue, Jul 9, 2002	19.00	19.00	18.90	19.00
400	NYSE	ERF	Mon, Jul 8, 2002	18.90	18.98	18.75	18.97
399	NYSE	ERF	Fri, Jul 5, 2002	18.98	18.98	18.86	18.91
398	NYSE	ERF	Wed, Jul 3, 2002	18.75	18.81	18.70	18.80
397	NYSE	ERF	Tue, Jul 2, 2002	18.69	18.80	18.60	18.73
396	NYSE	ERF	Mon, Jul 1, 2002	18.56	18.68	18.50	18.67
395	NYSE	ERF	Fri, Jun 28, 2002	18.55	18.56	18.42	18.55
394	NYSE	ERF	Thu, Jun 27, 2002	18.51	18.60	18.41	18.55
393	NYSE	ERF	Wed, Jun 26, 2002	18.50	18.51	18.36	18.44
392	NYSE	ERF	Tue, Jun 25, 2002	18.44	18.44	18.25	18.43
391	NYSE	ERF	Mon, Jun 24, 2002	18.08	18.44	18.08	18.40
390	NYSE	ERF	Fri, Jun 21, 2002	17.85	18.08	17.75	18.05
389	NYSE	ERF	Thu, Jun 20, 2002	17.71	17.84	17.51	17.75
388	NYSE	ERF	Wed, Jun 19, 2002	17.70	17.71	17.52	17.63
387	NYSE	ERF	Tue, Jun 18, 2002	17.64	17.72	17.52	17.63
386	NYSE	ERF	Mon, Jun 17, 2002	17.63	17.67	17.51	17.62
385	NYSE	ERF	Fri, Jun 14, 2002	17.54	17.59	17.30	17.56
384	NYSE	ERF	Thu, Jun 13, 2002	17.49	17.55	17.38	17.54
383	NYSE	ERF	Wed, Jun 12, 2002	17.48	17.48	17.33	17.47
382	NYSE	ERF	Tue, Jun 11, 2002	17.45	17.45	17.21	17.36
381	NYSE	ERF	Mon, Jun 10, 2002	17.50	17.50	17.15	17.20
380	NYSE	ERF	Fri, Jun 7, 2002	16.99	16.99	16.81	16.92
379	NYSE	ERF	Thu, Jun 6, 2002	17.20	17.20	16.95	17.00
378	NYSE	ERF	Wed, Jun 5, 2002	17.30	17.34	17.15	17.27
377	NYSE	ERF	Tue, Jun 4, 2002	17.26	17.42	17.16	17.35
376	NYSE	ERF	Mon, Jun 3, 2002	17.24	17.35	17.18	17.30
375	NYSE	ERF	Fri, May 31, 2002	16.98	17.21	16.98	17.18
374	NYSE	ERF	Thu, May 30, 2002	17.10	17.19	17.00	17.08
373	NYSE	ERF	Wed, May 29, 2002	17.12	17.18	17.03	17.12
372	NYSE	ERF	Tue, May 28, 2002	17.16	17.17	17.02	17.17
371	NYSE	ERF	Fri, May 24, 2002	17.14	17.22	16.95	17.19
370	NYSE	ERF	Thu, May 23, 2002	16.97	17.18	16.96	17.14
369	NYSE	ERF	Wed, May 22, 2002	17.10	17.12	16.97	17.05
368	NYSE	ERF	Tue, May 21, 2002	17.10	17.12	17.01	17.10
367	NYSE	ERF	Mon, May 20, 2002	16.90	17.34	16.90	17.14
366	NYSE	ERF	Fri, May 17, 2002	17.00	17.05	16.85	17.03
365	NYSE	ERF	Thu, May 16, 2002	16.94	16.96	16.82	16.96
364	NYSE	ERF	Wed, May 15, 2002	16.88	16.99	16.80	16.93
363	NYSE	ERF	Tue, May 14, 2002	16.75	16.95	16.64	16.86
362	NYSE	ERF	Mon, May 13, 2002	16.85	16.88	16.59	16.72
361	NYSE	ERF	Fri, May 10, 2002	16.70	16.93	16.60	16.85
360	NYSE	ERF	Thu, May 9, 2002	16.70	16.75	16.58	16.70
359	NYSE	ERF	Wed, May 8, 2002	16.60	16.86	16.51	16.75
358	NYSE	ERF	Tue, May 7, 2002	16.75	16.78	16.53	16.72
357	NYSE	ERF	Mon, May 6, 2002	16.89	16.89	16.51	16.73
356	NYSE	ERF	Fri, May 3, 2002	16.70	16.84	16.55	16.84
355	NYSE	ERF	Thu, May 2, 2002	16.75	16.75	16.54	16.66
354	NYSE	ERF	Wed, May 1, 2002	16.75	16.75	16.61	16.75
353	NYSE	ERF	Tue, Apr 30, 2002	16.48	16.66	16.41	16.61
352	NYSE	ERF	Mon, Apr 29, 2002	16.40	16.46	16.20	16.42
351	NYSE	ERF	Fri, Apr 26, 2002	16.25	16.33	16.17	16.31
350	NYSE	ERF	Thu, Apr 25, 2002	16.18	16.34	16.10	16.25
349	NYSE	ERF	Wed, Apr 24, 2002	16.37	16.45	16.15	16.18
348	NYSE	ERF	Tue, Apr 23, 2002	16.43	16.49	16.33	16.37
347	NYSE	ERF	Mon, Apr 22, 2002	16.65	16.65	16.35	16.42
346	NYSE	ERF	Fri, Apr 19, 2002	16.64	16.64	16.45	16.57
345	NYSE	ERF	Thu, Apr 18, 2002	16.63	16.63	16.50	16.59
344	NYSE	ERF	Wed, Apr 17, 2002	16.35	16.62	16.35	16.55
343	NYSE	ERF	Tue, Apr 16, 2002	16.43	16.48	16.21	16.35
342	NYSE	ERF	Mon, Apr 15, 2002	16.00	16.40	15.95	16.38
341	NYSE	ERF	Fri, Apr 12, 2002	16.45	16.45	15.92	15.95
340	NYSE	ERF	Thu, Apr 11, 2002	16.38	16.39	16.25	16.35
339	NYSE	ERF	Wed, Apr 10, 2002	16.31	16.41	16.21	16.35
338	NYSE	ERF	Tue, Apr 9, 2002	16.41	16.41	16.15	16.31
337	NYSE	ERF	Mon, Apr 8, 2002	16.21	16.70	16.21	16.51
336	NYSE	ERF	Fri, Apr 5, 2002	16.29	16.34	16.06	16.21
335	NYSE	ERF	Thu, Apr 4, 2002	16.82	16.82	16.20	16.34
334	NYSE	ERF	Wed, Apr 3, 2002	16.97	17.04	16.74	16.80
333	NYSE	ERF	Tue, Apr 2, 2002	16.81	17.00	16.81	16.94
332	NYSE	ERF	Mon, Apr 1, 2002	16.43	16.78	16.39	16.72
331	NYSE	ERF	Thu, Mar 28, 2002	16.50	16.52	16.43	16.43
330	NYSE	ERF	Wed, Mar 27, 2002	16.30	16.49	16.30	16.47
329	NYSE	ERF	Tue, Mar 26, 2002	16.35	16.38	16.16	16.38
328	NYSE	ERF	Mon, Mar 25, 2002	16.48	16.48	16.27	16.41
327	NYSE	ERF	Fri, Mar 22, 2002	16.48	16.55	16.40	16.48
326	NYSE	ERF	Thu, Mar 21, 2002	16.29	16.40	16.21	16.36
325	NYSE	ERF	Wed, Mar 20, 2002	16.50	16.55	16.25	16.25
324	NYSE	ERF	Tue, Mar 19, 2002	16.49	16.53	16.33	16.49
323	NYSE	ERF	Mon, Mar 18, 2002	16.05	16.40	16.01	16.40
322	NYSE	ERF	Fri, Mar 15, 2002	15.95	16.09	15.90	16.00
321	NYSE	ERF	Thu, Mar 14, 2002	15.93	15.99	15.76	15.92
320	NYSE	ERF	Wed, Mar 13, 2002	16.08	16.08	15.93	16.01
319	NYSE	ERF	Tue, Mar 12, 2002	16.14	16.18	15.90	16.05
318	NYSE	ERF	Mon, Mar 11, 2002	16.10	16.19	16.05	16.15
317	NYSE	ERF	Fri, Mar 8, 2002	16.10	16.16	15.94	16.07
316	NYSE	ERF	Thu, Mar 7, 2002	15.82	16.30	15.82	16.19
315	NYSE	ERF	Wed, Mar 6, 2002	15.76	16.00	15.70	15.90
314	NYSE	ERF	Tue, Mar 5, 2002	15.51	15.85	15.46	15.85
313	NYSE	ERF	Mon, Mar 4, 2002	15.20	15.57	15.06	15.50
312	NYSE	ERF	Fri, Mar 1, 2002	14.91	15.24	14.91	15.15
311	NYSE	ERF	Thu, Feb 28, 2002	14.94	15.14	14.92	15.03
310	NYSE	ERF	Wed, Feb 27, 2002	14.70	15.10	14.66	14.91
309	NYSE	ERF	Tue, Feb 26, 2002	14.75	14.75	14.66	14.67
308	NYSE	ERF	Mon, Feb 25, 2002	14.73	14.80	14.67	14.73
307	NYSE	ERF	Fri, Feb 22, 2002	14.70	14.80	14.50	14.80
306	NYSE	ERF	Thu, Feb 21, 2002	14.42	14.74	14.41	14.60
305	NYSE	ERF	Wed, Feb 20, 2002	14.72	14.72	14.30	14.50
304	NYSE	ERF	Tue, Feb 19, 2002	14.65	14.79	14.56	14.72
303	NYSE	ERF	Fri, Feb 15, 2002	14.95	14.99	14.66	14.72
302	NYSE	ERF	Thu, Feb 14, 2002	14.99	15.03	14.85	14.88
301	NYSE	ERF	Wed, Feb 13, 2002	14.91	15.03	14.91	14.99
300	NYSE	ERF	Tue, Feb 12, 2002	15.01	15.19	14.90	15.07
299	NYSE	ERF	Mon, Feb 11, 2002	15.17	15.20	15.00	15.07
298	NYSE	ERF	Fri, Feb 8, 2002	15.15	15.24	15.09	15.20
297	NYSE	ERF	Thu, Feb 7, 2002	15.29	15.29	15.05	15.16
296	NYSE	ERF	Wed, Feb 6, 2002	15.15	15.30	15.02	15.29
295	NYSE	ERF	Tue, Feb 5, 2002	15.39	15.43	15.30	15.41
294	NYSE	ERF	Mon, Feb 4, 2002	15.34	15.45	15.26	15.35
293	NYSE	ERF	Fri, Feb 1, 2002	15.36	15.39	15.24	15.33
292	NYSE	ERF	Thu, Jan 31, 2002	15.06	15.45	15.06	15.28
291	NYSE	ERF	Wed, Jan 30, 2002	15.30	15.45	15.07	15.29
290	NYSE	ERF	Tue, Jan 29, 2002	15.45	15.52	15.25	15.30
289	NYSE	ERF	Mon, Jan 28, 2002	15.10	15.44	15.01	15.43
288	NYSE	ERF	Fri, Jan 25, 2002	15.10	15.17	15.01	15.13
287	NYSE	ERF	Thu, Jan 24, 2002	15.31	15.36	15.05	15.14
286	NYSE	ERF	Wed, Jan 23, 2002	15.32	15.38	15.26	15.29
285	NYSE	ERF	Tue, Jan 22, 2002	15.40	15.40	15.26	15.30
284	NYSE	ERF	Fri, Jan 18, 2002	15.35	15.44	15.21	15.25
283	NYSE	ERF	Thu, Jan 17, 2002	15.59	15.59	15.30	15.40
282	NYSE	ERF	Wed, Jan 16, 2002	15.70	15.70	15.47	15.55
281	NYSE	ERF	Tue, Jan 15, 2002	15.70	15.70	15.55	15.70
280	NYSE	ERF	Mon, Jan 14, 2002	16.00	16.00	15.53	15.70
279	NYSE	ERF	Fri, Jan 11, 2002	15.81	15.86	15.77	15.82
278	NYSE	ERF	Thu, Jan 10, 2002	15.80	15.82	15.71	15.81
277	NYSE	ERF	Wed, Jan 9, 2002	15.96	15.97	15.75	15.76
276	NYSE	ERF	Tue, Jan 8, 2002	15.90	16.20	15.80	16.01
275	NYSE	ERF	Mon, Jan 7, 2002	15.80	15.86	15.76	15.86
274	NYSE	ERF	Fri, Jan 4, 2002	15.74	15.93	15.72	15.82
273	NYSE	ERF	Thu, Jan 3, 2002	15.49	15.66	15.42	15.66
272	NYSE	ERF	Wed, Jan 2, 2002	15.59	15.59	15.42	15.44
271	NYSE	ERF	Mon, Dec 31, 2001	15.50	15.59	15.47	15.56
270	NYSE	ERF	Fri, Dec 28, 2001	15.46	15.56	15.42	15.51
269	NYSE	ERF	Thu, Dec 27, 2001	15.26	15.55	15.17	15.45
268	NYSE	ERF	Wed, Dec 26, 2001	15.40	15.59	15.32	15.48
267	NYSE	ERF	Mon, Dec 24, 2001	15.12	15.24	15.10	15.24
266	NYSE	ERF	Fri, Dec 21, 2001	15.22	15.25	15.10	15.15
265	NYSE	ERF	Thu, Dec 20, 2001	15.15	15.23	15.01	15.22
264	NYSE	ERF	Wed, Dec 19, 2001	15.14	15.26	15.13	15.20
263	NYSE	ERF	Tue, Dec 18, 2001	15.20	15.30	15.15	15.22
262	NYSE	ERF	Mon, Dec 17, 2001	15.39	15.50	15.26	15.26
261	NYSE	ERF	Fri, Dec 14, 2001	15.39	15.39	15.19	15.38
260	NYSE	ERF	Thu, Dec 13, 2001	15.50	15.65	15.13	15.19
259	NYSE	ERF	Wed, Dec 12, 2001	15.60	15.74	15.38	15.50
258	NYSE	ERF	Tue, Dec 11, 2001	15.50	15.65	15.46	15.60
257	NYSE	ERF	Mon, Dec 10, 2001	15.75	15.75	15.37	15.46
256	NYSE	ERF	Fri, Dec 7, 2001	16.02	16.02	15.65	15.73
255	NYSE	ERF	Thu, Dec 6, 2001	16.05	16.19	16.00	16.02
254	NYSE	ERF	Wed, Dec 5, 2001	16.24	16.60	16.20	16.33
253	NYSE	ERF	Tue, Dec 4, 2001	16.09	16.25	15.95	16.19
252	NYSE	ERF	Mon, Dec 3, 2001	15.74	15.96	15.70	15.89
251	NYSE	ERF	Fri, Nov 30, 2001	15.57	15.80	15.49	15.67
250	NYSE	ERF	Thu, Nov 29, 2001	15.51	15.63	15.45	15.57
249	NYSE	ERF	Wed, Nov 28, 2001	15.90	15.90	15.51	15.51
248	NYSE	ERF	Tue, Nov 27, 2001	15.37	15.70	15.34	15.69
247	NYSE	ERF	Mon, Nov 26, 2001	15.50	15.50	15.26	15.36
246	NYSE	ERF	Fri, Nov 23, 2001	15.33	15.50	15.33	15.50
245	NYSE	ERF	Wed, Nov 21, 2001	15.34	15.47	15.27	15.33
244	NYSE	ERF	Tue, Nov 20, 2001	14.91	15.28	14.91	15.18
243	NYSE	ERF	Mon, Nov 19, 2001	14.70	14.96	14.55	14.92
242	NYSE	ERF	Fri, Nov 16, 2001	14.78	15.08	14.36	14.80
241	NYSE	ERF	Thu, Nov 15, 2001	15.25	15.25	13.79	14.77
240	NYSE	ERF	Wed, Nov 14, 2001	15.55	15.55	15.24	15.25
239	NYSE	ERF	Tue, Nov 13, 2001	15.49	15.56	15.41	15.56
238	NYSE	ERF	Mon, Nov 12, 2001	15.52	15.52	15.35	15.40
237	NYSE	ERF	Fri, Nov 9, 2001	15.59	15.59	15.41	15.50
236	NYSE	ERF	Thu, Nov 8, 2001	15.49	15.55	15.40	15.50
235	NYSE	ERF	Wed, Nov 7, 2001	15.57	15.58	15.39	15.50
234	NYSE	ERF	Tue, Nov 6, 2001	15.84	15.84	15.61	15.80
233	NYSE	ERF	Mon, Nov 5, 2001	15.86	15.86	15.77	15.85
232	NYSE	ERF	Fri, Nov 2, 2001	15.86	15.86	15.80	15.86
231	NYSE	ERF	Thu, Nov 1, 2001	15.85	15.95	15.80	15.83
230	NYSE	ERF	Wed, Oct 31, 2001	15.96	15.96	15.82	15.89
229	NYSE	ERF	Tue, Oct 30, 2001	16.01	16.03	15.97	15.98
228	NYSE	ERF	Mon, Oct 29, 2001	15.91	16.04	15.91	16.01
227	NYSE	ERF	Fri, Oct 26, 2001	15.99	15.99	15.91	15.97
226	NYSE	ERF	Thu, Oct 25, 2001	16.00	16.00	15.85	15.99
225	NYSE	ERF	Wed, Oct 24, 2001	16.50	16.50	16.30	16.35
224	NYSE	ERF	Tue, Oct 23, 2001	16.35	16.55	16.35	16.40
223	NYSE	ERF	Mon, Oct 22, 2001	16.10	16.38	16.10	16.34
222	NYSE	ERF	Fri, Oct 19, 2001	16.10	16.10	16.00	16.06
221	NYSE	ERF	Thu, Oct 18, 2001	16.49	16.49	16.07	16.17
220	NYSE	ERF	Wed, Oct 17, 2001	16.45	16.68	16.36	16.38
219	NYSE	ERF	Tue, Oct 16, 2001	16.35	16.60	16.24	16.40
218	NYSE	ERF	Mon, Oct 15, 2001	16.49	16.49	16.08	16.45
217	NYSE	ERF	Fri, Oct 12, 2001	16.65	16.74	16.00	16.47
216	NYSE	ERF	Thu, Oct 11, 2001	17.00	17.00	16.56	16.60
215	NYSE	ERF	Wed, Oct 10, 2001	16.65	17.00	16.60	17.00
214	NYSE	ERF	Tue, Oct 9, 2001	16.85	16.88	16.53	16.63
213	NYSE	ERF	Mon, Oct 8, 2001	16.45	17.23	16.35	16.85
212	NYSE	ERF	Fri, Oct 5, 2001	16.10	16.40	15.98	16.40
211	NYSE	ERF	Thu, Oct 4, 2001	15.91	16.28	15.87	16.25
210	NYSE	ERF	Wed, Oct 3, 2001	15.85	15.96	15.40	15.91
209	NYSE	ERF	Tue, Oct 2, 2001	15.55	16.15	15.50	15.94
208	NYSE	ERF	Mon, Oct 1, 2001	14.86	15.55	14.69	15.55
207	NYSE	ERF	Fri, Sep 28, 2001	14.70	14.80	14.50	14.76
206	NYSE	ERF	Thu, Sep 27, 2001	14.75	14.80	14.50	14.60
205	NYSE	ERF	Wed, Sep 26, 2001	14.97	14.98	14.60	14.77
204	NYSE	ERF	Tue, Sep 25, 2001	14.71	14.90	14.52	14.77
203	NYSE	ERF	Mon, Sep 24, 2001	15.10	15.10	14.60	14.70
202	NYSE	ERF	Fri, Sep 21, 2001	14.65	15.15	14.27	15.15
201	NYSE	ERF	Thu, Sep 20, 2001	15.45	15.60	14.10	15.12
200	NYSE	ERF	Wed, Sep 19, 2001	16.52	16.55	15.50	15.65
199	NYSE	ERF	Tue, Sep 18, 2001	16.71	16.71	16.50	16.59
198	NYSE	ERF	Mon, Sep 17, 2001	16.90	16.97	16.70	16.74
197	NYSE	ERF	Mon, Sep 10, 2001	16.75	16.94	16.60	16.90
196	NYSE	ERF	Fri, Sep 7, 2001	16.75	16.75	16.40	16.75
195	NYSE	ERF	Thu, Sep 6, 2001	17.37	17.37	16.60	16.75
194	NYSE	ERF	Wed, Sep 5, 2001	17.60	17.70	17.46	17.65
193	NYSE	ERF	Tue, Sep 4, 2001	17.60	17.80	17.47	17.60
192	NYSE	ERF	Fri, Aug 31, 2001	17.73	17.88	17.48	17.60
191	NYSE	ERF	Thu, Aug 30, 2001	17.98	17.98	17.68	17.73
190	NYSE	ERF	Wed, Aug 29, 2001	18.00	18.08	17.90	17.95
189	NYSE	ERF	Tue, Aug 28, 2001	17.98	18.08	17.90	18.00
188	NYSE	ERF	Mon, Aug 27, 2001	17.85	18.04	17.55	18.00
187	NYSE	ERF	Fri, Aug 24, 2001	18.13	18.36	17.30	18.08
186	NYSE	ERF	Thu, Aug 23, 2001	18.57	18.57	18.00	18.01
185	NYSE	ERF	Wed, Aug 22, 2001	18.56	18.80	18.52	18.57
184	NYSE	ERF	Tue, Aug 21, 2001	18.69	18.69	18.51	18.56
183	NYSE	ERF	Mon, Aug 20, 2001	18.83	18.83	18.51	18.69
182	NYSE	ERF	Fri, Aug 17, 2001	18.82	18.93	18.73	18.83
181	NYSE	ERF	Thu, Aug 16, 2001	19.25	19.25	18.75	18.75
180	NYSE	ERF	Wed, Aug 15, 2001	18.85	19.15	18.71	19.03
179	NYSE	ERF	Tue, Aug 14, 2001	18.65	18.86	18.50	18.82
178	NYSE	ERF	Mon, Aug 13, 2001	18.65	18.70	18.50	18.65
177	NYSE	ERF	Fri, Aug 10, 2001	18.52	18.75	18.50	18.68
176	NYSE	ERF	Thu, Aug 9, 2001	18.79	18.79	18.51	18.51
175	NYSE	ERF	Wed, Aug 8, 2001	18.84	18.99	18.61	18.75
174	NYSE	ERF	Tue, Aug 7, 2001	19.49	19.49	19.00	19.10
173	NYSE	ERF	Mon, Aug 6, 2001	19.00	19.60	18.92	19.45
172	NYSE	ERF	Fri, Aug 3, 2001	18.85	19.06	18.85	18.91
171	NYSE	ERF	Thu, Aug 2, 2001	18.76	18.89	18.70	18.85
170	NYSE	ERF	Wed, Aug 1, 2001	18.49	19.00	18.45	18.76
169	NYSE	ERF	Tue, Jul 31, 2001	18.50	18.50	18.33	18.48
168	NYSE	ERF	Mon, Jul 30, 2001	18.11	18.45	18.10	18.40
167	NYSE	ERF	Fri, Jul 27, 2001	18.20	18.20	17.90	18.14
166	NYSE	ERF	Thu, Jul 26, 2001	17.94	18.20	17.75	18.13
165	NYSE	ERF	Wed, Jul 25, 2001	17.74	17.94	17.57	17.94
164	NYSE	ERF	Tue, Jul 24, 2001	17.65	17.80	17.50	17.73
163	NYSE	ERF	Mon, Jul 23, 2001	17.75	17.95	17.51	17.56
162	NYSE	ERF	Fri, Jul 20, 2001	16.91	17.65	16.65	17.50
161	NYSE	ERF	Thu, Jul 19, 2001	16.15	17.00	16.05	16.89
160	NYSE	ERF	Wed, Jul 18, 2001	16.98	17.00	16.12	16.25
159	NYSE	ERF	Tue, Jul 17, 2001	16.55	17.00	16.55	16.95
158	NYSE	ERF	Mon, Jul 16, 2001	17.13	17.13	16.75	16.89
157	NYSE	ERF	Fri, Jul 13, 2001	17.25	17.25	17.06	17.16
156	NYSE	ERF	Thu, Jul 12, 2001	17.35	17.35	17.08	17.28
155	NYSE	ERF	Wed, Jul 11, 2001	17.25	17.39	17.00	17.20
154	NYSE	ERF	Tue, Jul 10, 2001	18.00	18.00	17.33	17.49
153	NYSE	ERF	Mon, Jul 9, 2001	18.58	18.58	17.90	18.00
152	NYSE	ERF	Fri, Jul 6, 2001	18.40	18.44	18.30	18.36
151	NYSE	ERF	Thu, Jul 5, 2001	18.65	18.74	18.57	18.68
150	NYSE	ERF	Tue, Jul 3, 2001	18.85	18.85	18.40	18.52
149	NYSE	ERF	Mon, Jul 2, 2001	18.55	19.50	18.55	18.99
148	NYSE	ERF	Fri, Jun 29, 2001	17.30	18.61	17.30	18.57
147	NYSE	ERF	Thu, Jun 28, 2001	16.20	17.15	16.11	17.11
146	NYSE	ERF	Wed, Jun 27, 2001	16.75	16.75	16.10	16.20
145	NYSE	ERF	Tue, Jun 26, 2001	17.24	17.34	16.07	16.90
144	NYSE	ERF	Mon, Jun 25, 2001	17.97	17.99	17.30	17.48
143	NYSE	ERF	Fri, Jun 22, 2001	17.90	18.05	17.52	17.95
142	NYSE	ERF	Thu, Jun 21, 2001	19.51	19.51	18.23	18.24
141	NYSE	ERF	Wed, Jun 20, 2001	19.61	19.70	19.50	19.50
140	NYSE	ERF	Tue, Jun 19, 2001	19.68	19.80	19.56	19.64
139	NYSE	ERF	Mon, Jun 18, 2001	20.05	20.05	19.55	19.56
138	NYSE	ERF	Fri, Jun 15, 2001	20.22	20.30	20.01	20.01
137	NYSE	ERF	Thu, Jun 14, 2001	20.34	20.34	20.11	20.18
136	NYSE	ERF	Wed, Jun 13, 2001	20.20	20.45	20.20	20.34
135	NYSE	ERF	Tue, Jun 12, 2001	20.05	20.17	19.96	20.17
134	NYSE	ERF	Mon, Jun 11, 2001	20.50	20.50	19.95	20.09
133	NYSE	ERF	Fri, Jun 8, 2001	20.50	20.50	20.26	20.34
132	NYSE	ERF	Thu, Jun 7, 2001	20.40	20.41	20.10	20.25
131	NYSE	ERF	Wed, Jun 6, 2001	20.59	20.59	20.34	20.40
130	NYSE	ERF	Tue, Jun 5, 2001	20.65	20.87	20.56	20.80
129	NYSE	ERF	Mon, Jun 4, 2001	20.50	21.00	20.45	20.55
128	NYSE	ERF	Fri, Jun 1, 2001	20.13	20.40	19.90	20.40
127	NYSE	ERF	Thu, May 31, 2001	20.42	20.42	20.00	20.17
126	NYSE	ERF	Wed, May 30, 2001	21.00	21.09	20.31	20.43
125	NYSE	ERF	Tue, May 29, 2001	20.95	21.24	20.92	20.97
124	NYSE	ERF	Fri, May 25, 2001	20.90	21.03	20.75	20.92
123	NYSE	ERF	Thu, May 24, 2001	21.05	21.11	20.85	20.90
122	NYSE	ERF	Wed, May 23, 2001	21.29	21.29	20.75	20.95
121	NYSE	ERF	Tue, May 22, 2001	21.50	21.50	21.06	21.25
120	NYSE	ERF	Mon, May 21, 2001	20.90	23.50	20.80	21.51
119	NYSE	ERF	Fri, May 18, 2001	20.18	20.60	20.01	20.50
118	NYSE	ERF	Thu, May 17, 2001	20.40	20.40	20.01	20.18
117	NYSE	ERF	Wed, May 16, 2001	19.78	20.32	19.78	20.30
116	NYSE	ERF	Tue, May 15, 2001	19.75	19.80	19.60	19.79
115	NYSE	ERF	Mon, May 14, 2001	20.04	20.04	19.71	19.78
114	NYSE	ERF	Fri, May 11, 2001	20.00	20.10	19.60	19.97
113	NYSE	ERF	Thu, May 10, 2001	20.35	20.49	20.10	20.24
112	NYSE	ERF	Wed, May 9, 2001	20.21	20.50	19.96	20.39
111	NYSE	ERF	Tue, May 8, 2001	20.64	20.64	20.02	20.25
110	NYSE	ERF	Mon, May 7, 2001	20.49	21.25	20.39	20.78
109	NYSE	ERF	Fri, May 4, 2001	20.43	20.45	19.81	20.24
108	NYSE	ERF	Thu, May 3, 2001	20.45	20.45	19.75	20.23
107	NYSE	ERF	Wed, May 2, 2001	21.00	21.00	20.18	20.39
106	NYSE	ERF	Tue, May 1, 2001	20.39	20.80	20.16	20.60
105	NYSE	ERF	Mon, Apr 30, 2001	19.50	20.15	19.50	20.14
104	NYSE	ERF	Fri, Apr 27, 2001	19.12	19.38	19.12	19.35
103	NYSE	ERF	Thu, Apr 26, 2001	19.04	19.09	18.93	19.09
102	NYSE	ERF	Wed, Apr 25, 2001	18.83	19.07	18.80	18.90
101	NYSE	ERF	Tue, Apr 24, 2001	18.74	18.84	18.70	18.83
100	NYSE	ERF	Mon, Apr 23, 2001	18.60	18.82	18.60	18.69
99	NYSE	ERF	Fri, Apr 20, 2001	18.25	18.77	18.02	18.60
98	NYSE	ERF	Thu, Apr 19, 2001	18.24	18.45	17.56	18.45
97	NYSE	ERF	Wed, Apr 18, 2001	18.75	18.75	17.75	18.24
96	NYSE	ERF	Tue, Apr 17, 2001	18.75	18.79	18.51	18.75
95	NYSE	ERF	Mon, Apr 16, 2001	18.75	18.80	18.25	18.50
94	NYSE	ERF	Thu, Apr 12, 2001	18.08	18.80	18.01	18.56
93	NYSE	ERF	Wed, Apr 11, 2001	18.04	18.04	17.76	17.99
92	NYSE	ERF	Tue, Apr 10, 2001	17.85	18.05	17.70	18.03
91	NYSE	ERF	Mon, Apr 9, 2001	17.74	18.09	17.48	17.63
90	NYSE	ERF	Fri, Apr 6, 2001	17.20	17.49	17.00	17.49
89	NYSE	ERF	Thu, Apr 5, 2001	16.98	17.32	16.91	17.23
88	NYSE	ERF	Wed, Apr 4, 2001	17.00	17.05	16.86	16.90
87	NYSE	ERF	Tue, Apr 3, 2001	17.40	17.40	16.65	16.90
86	NYSE	ERF	Mon, Apr 2, 2001	16.50	17.00	16.25	16.62
85	NYSE	ERF	Fri, Mar 30, 2001	15.40	15.55	15.30	15.54
84	NYSE	ERF	Thu, Mar 29, 2001	15.05	15.50	15.00	15.35
83	NYSE	ERF	Wed, Mar 28, 2001	14.90	15.07	14.88	15.07
82	NYSE	ERF	Tue, Mar 27, 2001	14.85	14.94	14.85	14.94
81	NYSE	ERF	Mon, Mar 26, 2001	15.00	15.00	14.80	14.89
80	NYSE	ERF	Fri, Mar 23, 2001	14.70	14.73	14.68	14.70
79	NYSE	ERF	Thu, Mar 22, 2001	14.70	14.71	14.62	14.66
78	NYSE	ERF	Wed, Mar 21, 2001	14.70	14.70	14.61	14.66
77	NYSE	ERF	Tue, Mar 20, 2001	14.79	14.83	14.75	14.80
76	NYSE	ERF	Mon, Mar 19, 2001	14.69	14.70	14.61	14.69
75	NYSE	ERF	Fri, Mar 16, 2001	14.70	14.70	14.60	14.68
74	NYSE	ERF	Thu, Mar 15, 2001	14.75	14.79	14.68	14.70
73	NYSE	ERF	Wed, Mar 14, 2001	14.95	14.95	14.75	14.75
72	NYSE	ERF	Tue, Mar 13, 2001	14.90	14.99	14.90	14.95
71	NYSE	ERF	Mon, Mar 12, 2001	15.05	15.05	14.90	14.90
70	NYSE	ERF	Fri, Mar 9, 2001	14.98	14.98	14.87	14.93
69	NYSE	ERF	Thu, Mar 8, 2001	14.85	14.92	14.75	14.91
68	NYSE	ERF	Wed, Mar 7, 2001	14.70	14.84	14.70	14.80
67	NYSE	ERF	Tue, Mar 6, 2001	15.05	15.13	15.05	15.07
66	NYSE	ERF	Mon, Mar 5, 2001	15.00	15.03	14.95	15.00
65	NYSE	ERF	Fri, Mar 2, 2001	14.70	14.95	14.70	14.95
64	NYSE	ERF	Thu, Mar 1, 2001	14.75	14.75	14.56	14.70
63	NYSE	ERF	Wed, Feb 28, 2001	15.00	15.00	14.70	14.75
62	NYSE	ERF	Tue, Feb 27, 2001	14.99	15.00	14.95	14.95
61	NYSE	ERF	Mon, Feb 26, 2001	15.00	15.00	14.94	14.95
60	NYSE	ERF	Fri, Feb 23, 2001	15.06	15.06	14.90	15.00
59	NYSE	ERF	Thu, Feb 22, 2001	15.05	15.09	15.05	15.05
58	NYSE	ERF	Wed, Feb 21, 2001	15.05	15.10	15.04	15.05
57	NYSE	ERF	Tue, Feb 20, 2001	15.10	15.14	15.05	15.05
56	NYSE	ERF	Fri, Feb 16, 2001	15.15	15.20	15.09	15.10
55	NYSE	ERF	Thu, Feb 15, 2001	15.15	15.20	15.15	15.15
54	NYSE	ERF	Wed, Feb 14, 2001	15.24	15.24	15.20	15.20
53	NYSE	ERF	Tue, Feb 13, 2001	15.25	15.27	15.25	15.25
52	NYSE	ERF	Mon, Feb 12, 2001	15.25	15.30	15.22	15.25
51	NYSE	ERF	Fri, Feb 9, 2001	15.25	15.30	15.25	15.30
50	NYSE	ERF	Thu, Feb 8, 2001	15.22	15.22	15.20	15.20
49	NYSE	ERF	Wed, Feb 7, 2001	15.19	15.19	15.09	15.14
48	NYSE	ERF	Tue, Feb 6, 2001	15.45	15.55	15.44	15.55
47	NYSE	ERF	Mon, Feb 5, 2001	15.60	15.60	15.48	15.48
46	NYSE	ERF	Fri, Feb 2, 2001	15.60	15.65	15.55	15.55
45	NYSE	ERF	Thu, Feb 1, 2001	15.70	15.90	15.50	15.50
44	NYSE	ERF	Wed, Jan 31, 2001	15.65	15.65	15.37	15.48
43	NYSE	ERF	Tue, Jan 30, 2001	15.80	15.95	15.80	15.85
42	NYSE	ERF	Mon, Jan 29, 2001	15.69	15.79	15.66	15.79
41	NYSE	ERF	Fri, Jan 26, 2001	15.19	15.56	15.19	15.44
40	NYSE	ERF	Wed, Jan 24, 2001	15.06	15.13	15.06	15.06
39	NYSE	ERF	Tue, Jan 23, 2001	15.19	15.19	15.13	15.13
38	NYSE	ERF	Mon, Jan 22, 2001	15.06	15.13	15.06	15.13
37	NYSE	ERF	Fri, Jan 19, 2001	14.94	14.94	14.94	14.94
36	NYSE	ERF	Thu, Jan 18, 2001	15.06	15.06	15.06	15.06
35	NYSE	ERF	Wed, Jan 17, 2001	15.13	15.13	15.06	15.06
34	NYSE	ERF	Tue, Jan 16, 2001	15.19	15.19	15.06	15.06
33	NYSE	ERF	Fri, Jan 12, 2001	15.19	15.25	15.13	15.19
32	NYSE	ERF	Thu, Jan 11, 2001	15.25	15.25	15.19	15.25
31	NYSE	ERF	Wed, Jan 10, 2001	15.25	15.25	15.25	15.25
30	NYSE	ERF	Tue, Jan 9, 2001	15.25	15.25	15.19	15.19
29	NYSE	ERF	Mon, Jan 8, 2001	15.19	15.19	15.19	15.19
28	NYSE	ERF	Fri, Jan 5, 2001	15.25	15.25	15.19	15.25
27	NYSE	ERF	Thu, Jan 4, 2001	15.25	15.25	15.25	15.25
26	NYSE	ERF	Wed, Jan 3, 2001	15.44	15.50	15.38	15.38
25	NYSE	ERF	Tue, Jan 2, 2001	15.31	15.31	15.31	15.31
24	NYSE	ERF	Fri, Dec 29, 2000	15.13	15.25	15.13	15.25
23	NYSE	ERF	Thu, Dec 28, 2000	14.94	15.06	14.94	15.06
22	NYSE	ERF	Thu, Dec 21, 2000	14.88	14.88	14.88	14.88
21	NYSE	ERF	Mon, Dec 18, 2000	14.94	14.94	14.94	14.94
20	NYSE	ERF	Fri, Dec 15, 2000	15.00	15.00	15.00	15.00
19	NYSE	ERF	Thu, Dec 14, 2000	15.00	15.00	15.00	15.00
18	NYSE	ERF	Wed, Dec 13, 2000	14.94	15.00	14.94	15.00
17	NYSE	ERF	Tue, Dec 12, 2000	14.88	14.88	14.88	14.88
16	NYSE	ERF	Mon, Dec 11, 2000	15.00	15.00	14.94	15.00
15	NYSE	ERF	Fri, Dec 8, 2000	14.75	14.94	14.75	14.94
14	NYSE	ERF	Thu, Dec 7, 2000	14.69	14.69	14.69	14.69
13	NYSE	ERF	Wed, Dec 6, 2000	14.69	14.69	14.69	14.69
12	NYSE	ERF	Tue, Dec 5, 2000	14.94	14.94	14.94	14.94
11	NYSE	ERF	Mon, Dec 4, 2000	14.94	14.94	14.88	14.94
10	NYSE	ERF	Fri, Dec 1, 2000	14.81	14.94	14.81	14.94
9	NYSE	ERF	Thu, Nov 30, 2000	15.00	15.00	14.88	14.94
8	NYSE	ERF	Wed, Nov 29, 2000	14.88	14.88	14.88	14.88
7	NYSE	ERF	Tue, Nov 28, 2000	14.81	14.88	14.81	14.88
6	NYSE	ERF	Mon, Nov 27, 2000	14.69	14.69	14.69	14.69
5	NYSE	ERF	Fri, Nov 24, 2000	14.69	14.69	14.69	14.69
4	NYSE	ERF	Wed, Nov 22, 2000	14.69	14.69	14.69	14.69
3	NYSE	ERF	Tue, Nov 21, 2000	14.75	14.75	14.69	14.69
2	NYSE	ERF	Mon, Nov 20, 2000	14.69	14.69	14.69	14.69
1	NYSE	ERF	Fri, Nov 17, 2000	14.88	15.00	14.69	14.69
#	Exchange	Symbol	Date	Open	High	Low	Close

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