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| Operator | Operating State | Recent Oil Production | Recent Gas Production | Production Dates on File |
|---|---|---|---|---|
| Diehl Oil Inc | Kansas | 2,094 BBLs | 0 MCF | Jan 1980 - Jun 2025 |
| Diversified Production LLC | Louisiana | 8,836 BBLs | 3,242,940 MCF | May 2021 - Dec 2024 |
| Dixon Operating Company, LLC | Kansas | 11,466 BBLs | 46,104 MCF | Jan 2010 - Jun 2025 |
| DJR Operating, LLC | New Mexico | 492,625 BBLs | 1,402,825 MCF | Nov 2017 - Oct 2025 |
| Dorcheat Oil & Gas, LLC | Louisiana | 245 BBLs | 35,651 MCF | Mar 2016 - Dec 2024 |
| Double Eagle Exploration, Inc. | Kansas | 1,424 BBLs | 0 MCF | Jan 1980 - Jun 2025 |
| Double G Petro LLC | Kansas | 1,586 BBLs | 0 MCF | Jan 2024 - Jun 2025 |
| Downing-Nelson Oil Co Inc | Kansas | 20,655 BBLs | 0 MCF | Jan 1980 - Jun 2025 |
| Dugan Production Corp | New Mexico | 4,280 BBLs | 613,350 MCF | Jan 1993 - Sep 2025 |
| Dunamis Energy Operating LLC | Colorado | 45,868 BBLs | 51,530 MCF | Sep 2011 - Sep 2025 |
| Dunn Exploration Company, LLC | Louisiana | 68,232 BBLs | 141,231 MCF | Apr 2010 - Jan 2025 |
| Durango Operating, LLC | Alabama | 1,737 BBLs | 27 MCF | May 1952 - Sep 2025 |
| E2 Operating, LLC | Mississippi | 3,499 BBLs | 352 MCF | Nov 1976 - Sep 2025 |
| Eagle Creek Corporation | Kansas | 3,715 BBLs | 902 MCF | Jan 1980 - Jun 2025 |
| Eagle Operating, Inc. | North Dakota | 5,056 BBLs | 4,062 MCF | Dec 1991 - Oct 2025 |
| Earthstone Operating, LLC | New Mexico | 1,221,007 BBLs | 3,450,921 MCF | Mar 2022 - Oct 2025 |
| Edge Energy LLC | Colorado | 28,039 BBLs | 281,769 MCF | Aug 2018 - Sep 2025 |
| Edison Operating Company LLC | Kansas | 15,901 BBLs | 242,794 MCF | Jan 1980 - Jun 2025 |
| Edmiston Oil Company, Inc. | Kansas | 2,067 BBLs | 9,995 MCF | Jan 1980 - Jun 2025 |
| Egh Operating, LLC | Louisiana | 1,847 BBLs | 0 MCF | Aug 2018 - Dec 2024 |
| Elendil Resources LLC | Kansas | 0 BBLs | 21,404 MCF | Jan 2020 - Jun 2025 |
| Elevate Energy LTD | Kansas | 4,306 BBLs | 950 MCF | Jan 2020 - Jun 2025 |
| Elite Group LLC | Mississippi | 1,908 BBLs | 0 MCF | Dec 1976 - Sep 2025 |
| Elk Energy Holdings LLC | Kansas | 1,900 BBLs | 6,067 MCF | Jan 2010 - Jun 2025 |
| Elk Operating Services, LLC | Utah | 243,586 BBLs | 822,404 MCF | Jan 2018 - Oct 2025 |
| Elm III Operating Company LLC | Kansas | 1,347 BBLs | 13,749 MCF | Jan 1980 - Jun 2025 |
| Emep II Operating LLC | Wyoming | 38,415 BBLs | 224,566 MCF | Aug 2025 - Oct 2025 |
| Empire New Mexico LLC | New Mexico | 37,571 BBLs | 100,689 MCF | May 2021 - Sep 2025 |
| Empire North Dakota LLC | North Dakota | 25,033 BBLs | 6,666 MCF | Sep 2019 - Oct 2025 |
| Empresa Operating, LLC | Louisiana | 30,933 BBLs | 276,367 MCF | Sep 2019 - Dec 2024 |
| Emre Oil LLC | Wyoming | 2,851 BBLs | 0 MCF | Jul 2015 - Oct 2025 |
| Endurance Operating LLC | Louisiana | 1,790 BBLs | 7,885 MCF | Nov 2022 - Dec 2024 |
| Enduring Resources LLC | Colorado | 0 BBLs | 1,539,366 MCF | Jan 1999 - Sep 2025 |
| Enduring Resources, LLC | New Mexico | 393,905 BBLs | 1,533,626 MCF | Dec 2017 - Oct 2025 |
| Enerplus Resources USA Corporation | North Dakota | 1,701,799 BBLs | 3,779,611 MCF | Mar 2006 - Oct 2025 |
| Ensight IV Energy Management, LLC | Louisiana | 4,268 BBLs | 417,482 MCF | Jul 2017 - Dec 2024 |
| Enterra Resources, LLC | Kansas | 4,413 BBLs | 10,756 MCF | Jan 2010 - Jun 2025 |
| EOG Resources Inc | New Mexico | 11,508,511 BBLs | 55,134,686 MCF | Jan 1993 - Oct 2025 |
| EOG Resources Inc | Wyoming | 983,000 BBLs | 6,527,810 MCF | Jan 1978 - Oct 2025 |
| EOG Resources, Inc. | North Dakota | 835,844 BBLs | 1,750,862 MCF | Apr 2001 - Oct 2025 |
| Epic Energy LLC | Colorado | 0 BBLs | 27,088 MCF | Jan 1999 - Sep 2025 |
| Epic Energy, L.L.C. | New Mexico | 2,553 BBLs | 291,369 MCF | Mar 2018 - Oct 2025 |
| Et Gathering & Processing LLC | Louisiana | 4,239 BBLs | 0 MCF | Oct 2023 - Dec 2024 |
| Ethyl Gas Company, LLC | Louisiana | 1,456 BBLs | 0 MCF | Nov 2021 - Jan 2025 |
| Evangeline Natural Resources, LLC | Louisiana | 3,123 BBLs | 24,531 MCF | Aug 2013 - Jan 2025 |
| Ew Operating (NM), LLC | New Mexico | 4,681 BBLs | 8,064 MCF | Jul 2025 - Sep 2025 |
| Excalibur Production Company, Inc. | Kansas | 4,446 BBLs | 0 MCF | Jan 1980 - Jun 2025 |
| Excel Operating Corporation | Louisiana | 611 BBLs | 13,099 MCF | Jan 1997 - Dec 2024 |
| Exco Operating Company, LP | Louisiana | 0 BBLs | 7,351,709 MCF | Jul 2008 - Dec 2024 |
| Extex Operating Co | Louisiana | 3,073 BBLs | 7,467 MCF | Dec 1999 - Dec 2024 |