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| Operator | Operating State | Recent Oil Production | Recent Gas Production | Production Dates on File |
|---|---|---|---|---|
| DJR Operating, LLC | New Mexico | 425,283 BBLs | 1,271,735 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 | 3,382 BBLs | 582,582 MCF | Jan 1993 - Oct 2025 |
| Dunamis Energy Operating LLC | Colorado | 223,196 BBLs | 1,158,040 MCF | Sep 2011 - Nov 2025 |
| Dunn Exploration Company, LLC | Louisiana | 68,232 BBLs | 141,231 MCF | Apr 2010 - Jan 2025 |
| Durango Operating, LLC | Alabama | 1,892 BBLs | 30 MCF | May 1952 - Oct 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 - Nov 2025 |
| Earthstone Operating, LLC | New Mexico | 1,102,425 BBLs | 3,173,197 MCF | Mar 2022 - Oct 2025 |
| Edge Energy LLC | Colorado | 27,650 BBLs | 283,014 MCF | Aug 2018 - Oct 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 |
| Elephant Operating LLC | Wyoming | 1,174 BBLs | 941 MCF | Jun 2018 - Nov 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 | 254,240 BBLs | 824,733 MCF | Jan 2018 - Nov 2025 |
| Elm III Operating Company LLC | Kansas | 1,347 BBLs | 13,749 MCF | Jan 1980 - Jun 2025 |
| Emep II Operating LLC | Wyoming | 37,185 BBLs | 219,473 MCF | Aug 2025 - Oct 2025 |
| Empire New Mexico LLC | New Mexico | 13,166 BBLs | 98,151 MCF | May 2021 - Oct 2025 |
| Empire North Dakota LLC | North Dakota | 25,033 BBLs | 6,666 MCF | Sep 2019 - Nov 2025 |
| Empresa Operating, LLC | Louisiana | 30,933 BBLs | 276,367 MCF | Sep 2019 - Dec 2024 |
| Emre Oil LLC | Wyoming | 2,852 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 | 1,558,384 MCF | Jan 1999 - Oct 2025 |
| Enduring Resources, LLC | New Mexico | 487,411 BBLs | 1,725,145 MCF | Dec 2017 - Oct 2025 |
| Enerplus Resources USA Corporation | North Dakota | 1,881,409 BBLs | 4,000,259 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 | 10,550,509 BBLs | 53,888,614 MCF | Jan 1993 - Oct 2025 |
| EOG Resources Inc | Wyoming | 969,935 BBLs | 6,458,681 MCF | Jan 1978 - Oct 2025 |
| EOG Resources, Inc. | North Dakota | 835,820 BBLs | 1,751,015 MCF | Apr 2001 - Nov 2025 |
| Epic Energy LLC | Colorado | 0 BBLs | 29,052 MCF | Jan 1999 - Oct 2025 |
| Epic Energy, L.L.C. | New Mexico | 3,018 BBLs | 276,495 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 |
| Evergreen Natural Resources LLC | Colorado | 0 BBLs | 1,983,881 MCF | Jan 1999 - Nov 2025 |
| Ew Operating (NM), LLC | New Mexico | 4,634 BBLs | 9,276 MCF | Jul 2025 - Oct 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 |
| Extex Operating Company | New Mexico | 15,046 BBLs | 50,638 MCF | Apr 2021 - Nov 2025 |