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| Operator | Operating State | Recent Oil Production | Recent Gas Production | Production Dates on File |
|---|---|---|---|---|
| Downing-Nelson Oil Co Inc | Kansas | 23,151 BBLs | 15 MCF | Jan 1980 - May 2024 |
| Dugan Production Corp | New Mexico | 4,179 BBLs | 647,436 MCF | Jan 1993 - Jun 2024 |
| Dunn Exploration Company, LLC | Louisiana | 54,318 BBLs | 30,557 MCF | Apr 2010 - Jan 2024 |
| Durango Operating, LLC | Alabama | 2,234 BBLs | 29 MCF | May 1952 - May 2024 |
| Dynamic Exploration PTRS, LLC | Louisiana | 2,614 BBLs | 183 MCF | Nov 2003 - Jan 2024 |
| E & B Natural Resources Management | Wyoming | 21,223 BBLs | 22 MCF | Feb 2011 - Jun 2024 |
| E & B Natural Resources Management Corp. | Kansas | 3,824 BBLs | 0 MCF | Jan 1980 - May 2024 |
| E2 Operating, LLC | Mississippi | 5,801 BBLs | 582 MCF | Nov 1976 - Jun 2024 |
| Eagle Creek Corporation | Kansas | 1,923 BBLs | 709 MCF | Jan 1980 - May 2024 |
| Eagle Operating, Inc. | North Dakota | 11,835 BBLs | 6,899 MCF | Dec 1991 - Jul 2024 |
| Earthstone Operating, LLC | New Mexico | 1,300,860 BBLs | 3,178,634 MCF | Mar 2022 - Jun 2024 |
| Edge Energy LLC | Colorado | 59,220 BBLs | 409,332 MCF | Dec 2015 - Jun 2024 |
| Edison Operating Company LLC | Kansas | 16,670 BBLs | 242,100 MCF | Jan 1980 - May 2024 |
| Edmiston Oil Company, Inc. | Kansas | 2,107 BBLs | 13,616 MCF | Jan 1980 - May 2024 |
| Eland Energy Inc | Mississippi | 1,625 BBLs | 0 MCF | Jul 1989 - Jun 2024 |
| Elevate Energy LTD | Kansas | 2,926 BBLs | 1,208 MCF | Jan 2020 - May 2024 |
| Elite Group LLC | Mississippi | 1,959 BBLs | 0 MCF | Dec 1976 - Jul 2024 |
| Elk Energy Holdings LLC | Kansas | 1,998 BBLs | 349 MCF | Jan 2010 - May 2024 |
| Elk Operating Services, LLC | Utah | 217,919 BBLs | 645,356 MCF | Jan 2018 - Jul 2024 |
| Elm III Operating Company LLC | Kansas | 1,555 BBLs | 10,643 MCF | Jan 1980 - May 2024 |
| Elysium Jennings, LLC | Louisiana | 10,628 BBLs | 61,500 MCF | Jun 2003 - Dec 2023 |
| Emep Operating, LLC | Montana | 94,861 BBLs | 168,977 MCF | Jan 2022 - Jun 2024 |
| Emep Operating, LLC | North Dakota | 18,037 BBLs | 20,682 MCF | Jun 2022 - Jul 2024 |
| Empire New Mexico LLC | New Mexico | 42,074 BBLs | 98,885 MCF | May 2021 - Jun 2024 |
| Empire North Dakota LLC | North Dakota | 15,728 BBLs | 273 MCF | Sep 2019 - Jul 2024 |
| Empresa Operating, LLC | Louisiana | 51,451 BBLs | 428,863 MCF | Aug 2019 - Dec 2023 |
| Emre Oil LLC | Wyoming | 4,155 BBLs | 0 MCF | Jul 2015 - Jun 2024 |
| Endurance Operating LLC | Louisiana | 4,549 BBLs | 8,221 MCF | Nov 2022 - Dec 2023 |
| Enduring Resources LLC | Colorado | 0 BBLs | 591,445 MCF | Nov 2017 - Jun 2024 |
| Enduring Resources, LLC | New Mexico | 335,134 BBLs | 1,442,074 MCF | Dec 2017 - Jun 2024 |
| Enerco Operating Corporation | Arkansas | 7,631 BBLs | 0 MCF | Jan 2001 - Jul 2024 |
| Energy Xxi Gom, LLC | Louisiana | 6,911 BBLs | 0 MCF | Jul 2006 - Dec 2023 |
| Enerplus Resources (USA) Corporation | Colorado | 14,805 BBLs | 25,024 MCF | Dec 2009 - Jul 2024 |
| Enerplus Resources USA Corporation | North Dakota | 1,514,777 BBLs | 3,430,428 MCF | Mar 2006 - Jul 2024 |
| Enervest Production Partners, LTD. | Louisiana | 0 BBLs | 94,000 MCF | Sep 2019 - Dec 2023 |
| Eni Us Operating Co. Inc. | Alaska | 598,392 BBLs | 154,873 MCF | Jan 2011 - Jul 2024 |
| Ensight IV Energy Management, LLC | Louisiana | 4,878 BBLs | 3,711,854 MCF | Jul 2017 - Jan 2024 |
| Enterra Resources, LLC | Kansas | 5,366 BBLs | 10,275 MCF | Jan 2010 - May 2024 |
| EOG Resources Inc | New Mexico | 10,295,544 BBLs | 44,258,261 MCF | Jan 1993 - Jun 2024 |
| EOG Resources Inc | Wyoming | 1,311,114 BBLs | 7,726,190 MCF | Jan 1978 - Jul 2024 |
| EOG Resources, Inc. | North Dakota | 724,044 BBLs | 1,721,166 MCF | Apr 2001 - Jul 2024 |
| Epic Energy, L.L.C. | New Mexico | 4,011 BBLs | 315,368 MCF | Mar 2018 - Jun 2024 |
| Escambia Operating Co. LLC | Alabama | 13,158 BBLs | 295,101 MCF | Jul 1970 - May 2024 |
| Et Gathering & Processing LLC | Louisiana | 8,087 BBLs | 0 MCF | Oct 2023 - Dec 2023 |
| Ethyl Gas Company, LLC | Louisiana | 1,584 BBLs | 0 MCF | Nov 2021 - Jan 2024 |
| Evangeline Natural Resources, LLC | Louisiana | 2,799 BBLs | 19,239 MCF | Aug 2013 - Dec 2023 |
| Everglow Energy, LLC | Kansas | 1,445 BBLs | 1,783 MCF | Jan 2010 - May 2024 |
| Evergreen Natural Resources LLC | Colorado | 0 BBLs | 2,222,159 MCF | Dec 2018 - Jul 2024 |
| Excalibur Production Company, Inc. | Kansas | 5,576 BBLs | 0 MCF | Jan 1980 - May 2024 |
| Exco Operating Company, LP | Louisiana | 0 BBLs | 13,166,818 MCF | Jul 2008 - Dec 2023 |