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| Operator | Operating State | Recent Oil Production | Recent Gas Production | Production Dates on File |
|---|---|---|---|---|
| DK Operating Inc. | Kansas | 2,507 BBLs | 0 MCF | Jan 1980 - Dec 2023 |
| Dome De Sel LLC | Louisiana | 1,361 BBLs | 12,395 MCF | Oct 2018 - Dec 2023 |
| Double Eagle Exploration, Inc. | Kansas | 1,570 BBLs | 0 MCF | Jan 1980 - Dec 2023 |
| Downing-Nelson Oil Co Inc | Kansas | 20,722 BBLs | 6 MCF | Jan 1980 - Dec 2023 |
| Dugan Production Corp | New Mexico | 4,055 BBLs | 646,253 MCF | Jan 1993 - Feb 2024 |
| Dunn Exploration Company, LLC | Louisiana | 54,318 BBLs | 30,557 MCF | Apr 2010 - Jan 2024 |
| Durango Operating, LLC | Alabama | 2,728 BBLs | 30 MCF | May 1952 - Nov 2023 |
| Dynamic Exploration PTRS, LLC | Louisiana | 2,614 BBLs | 183 MCF | Nov 2003 - Jan 2024 |
| E & B Natural Resources Management | Wyoming | 19,766 BBLs | 29 MCF | Feb 2011 - Feb 2024 |
| E & B Natural Resources Management Corp. | Kansas | 6,036 BBLs | 0 MCF | Jan 1980 - Dec 2023 |
| E2 Operating, LLC | Mississippi | 6,241 BBLs | 626 MCF | Nov 1976 - Jan 2024 |
| Eagle Creek Corporation | Kansas | 2,271 BBLs | 660 MCF | Jan 1980 - Dec 2023 |
| Eagle Operating, Inc. | North Dakota | 10,323 BBLs | 8,150 MCF | Dec 1991 - Feb 2024 |
| Earthstone Operating, LLC | New Mexico | 1,472,087 BBLs | 3,306,334 MCF | Mar 2022 - Jan 2024 |
| Ecco | Kansas | 1,304 BBLs | 0 MCF | Jan 1980 - Dec 2023 |
| Edge Energy LLC | Colorado | 79,845 BBLs | 424,051 MCF | Dec 2015 - Feb 2024 |
| Edison Operating Company LLC | Kansas | 14,669 BBLs | 230,971 MCF | Jan 1980 - Dec 2023 |
| Edmiston Oil Company, Inc. | Kansas | 1,599 BBLs | 13,840 MCF | Jan 1980 - Dec 2023 |
| Elevate Energy LTD | Kansas | 3,489 BBLs | 996 MCF | Jan 2020 - Dec 2023 |
| Elk Energy Holdings LLC | Kansas | 2,450 BBLs | 703 MCF | Jan 2010 - Dec 2023 |
| Elk Operating Services, LLC | Utah | 221,306 BBLs | 543,592 MCF | Jan 2018 - Feb 2024 |
| Elm III Operating Company LLC | Kansas | 1,916 BBLs | 6,966 MCF | Jan 1980 - Dec 2023 |
| Elysium Jennings, LLC | Louisiana | 10,628 BBLs | 61,500 MCF | Jun 2003 - Dec 2023 |
| Emep Operating, LLC | Montana | 105,766 BBLs | 171,322 MCF | Jan 2022 - Feb 2024 |
| Emep Operating, LLC | North Dakota | 18,223 BBLs | 19,054 MCF | Jun 2022 - Feb 2024 |
| Empire New Mexico LLC | New Mexico | 69,531 BBLs | 95,436 MCF | May 2021 - Jan 2024 |
| Empire North Dakota LLC | North Dakota | 11,715 BBLs | 268 MCF | Sep 2019 - Feb 2024 |
| Empresa Operating, LLC | Louisiana | 51,451 BBLs | 428,863 MCF | Aug 2019 - Dec 2023 |
| Emre Oil LLC | Wyoming | 4,543 BBLs | 0 MCF | Jul 2015 - Feb 2024 |
| Endurance Operating LLC | Louisiana | 4,549 BBLs | 8,221 MCF | Nov 2022 - Dec 2023 |
| Enduring Resources, LLC | New Mexico | 301,363 BBLs | 1,497,788 MCF | Dec 2017 - Jan 2024 |
| Enerco Operating Corporation | Arkansas | 7,645 BBLs | 0 MCF | Jan 2001 - Feb 2024 |
| Energy Xxi Gom, LLC | Louisiana | 6,911 BBLs | 0 MCF | Jul 2006 - Dec 2023 |
| Enerplus Resources (USA) Corporation | Colorado | 27,083 BBLs | 44,941 MCF | Dec 2009 - Feb 2024 |
| Enerplus Resources USA Corporation | North Dakota | 1,645,839 BBLs | 3,654,154 MCF | Mar 2006 - Feb 2024 |
| Enervest Production Partners, LTD. | Louisiana | 0 BBLs | 94,000 MCF | Sep 2019 - Dec 2023 |
| Eni Us Operating Co. Inc. | Alaska | 625,513 BBLs | 183,244 MCF | Jan 2011 - Feb 2024 |
| Ensight IV Energy Management, LLC | Louisiana | 4,878 BBLs | 3,711,854 MCF | Jul 2017 - Jan 2024 |
| Enterra Resources, LLC | Kansas | 5,284 BBLs | 10,793 MCF | Jan 2010 - Dec 2023 |
| EOG Resources Inc | New Mexico | 10,467,434 BBLs | 40,769,695 MCF | Jan 1993 - Jan 2024 |
| EOG Resources Inc | Wyoming | 1,131,732 BBLs | 6,452,690 MCF | Jan 1978 - Feb 2024 |
| EOG Resources, Inc. | North Dakota | 566,161 BBLs | 1,656,897 MCF | Apr 2001 - Feb 2024 |
| Epic Energy, L.L.C. | New Mexico | 3,882 BBLs | 321,948 MCF | Mar 2018 - Jan 2024 |
| Epoc, LLC | Kansas | 1,579 BBLs | 0 MCF | Jan 2020 - Dec 2023 |
| Escambia Operating Co. LLC | Alabama | 21,564 BBLs | 476,215 MCF | Jul 1970 - Nov 2023 |
| 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 |
| Everest Oil & Gas LLC | Wyoming | 1,317 BBLs | 0 MCF | May 2010 - Jan 2024 |
| Everglow Energy, LLC | Kansas | 1,155 BBLs | 2,600 MCF | Jan 2010 - Dec 2023 |