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| Operator | Operating State | Recent Oil Production | Recent Gas Production | Production Dates on File |
|---|---|---|---|---|
| Dugan Production Corp | New Mexico | 4,274 BBLs | 588,289 MCF | Jan 1993 - Oct 2024 |
| Dunn Exploration Company, LLC | Louisiana | 76,792 BBLs | 94,369 MCF | Apr 2010 - Jun 2024 |
| Durango Operating LLC | Mississippi | 1,890 BBLs | 314 MCF | Dec 1976 - Sep 2024 |
| Durango Operating, LLC | Alabama | 2,173 BBLs | 30 MCF | May 1952 - Jul 2024 |
| Dynamic Exploration PTRS, LLC | Louisiana | 2,185 BBLs | 180 MCF | Nov 2003 - Jul 2024 |
| E2 Operating, LLC | Mississippi | 4,162 BBLs | 416 MCF | Nov 1976 - Sep 2024 |
| Eagle Creek Corporation | Kansas | 2,658 BBLs | 795 MCF | Jan 1980 - Sep 2024 |
| Eagle Operating Inc. | Montana | 12,686 BBLs | 7,738 MCF | Nov 2023 - Oct 2024 |
| Eagle Operating, Inc. | North Dakota | 11,582 BBLs | 6,262 MCF | Dec 1991 - Oct 2024 |
| Earthstone Operating, LLC | New Mexico | 1,581,083 BBLs | 3,623,668 MCF | Mar 2022 - Oct 2024 |
| Edge Energy II LLC | Colorado | 1,319 BBLs | 2,000 MCF | Sep 2017 - Oct 2024 |
| Edge Energy LLC | Colorado | 49,263 BBLs | 408,266 MCF | Dec 2015 - Oct 2024 |
| Edison Operating Company LLC | Kansas | 18,040 BBLs | 236,439 MCF | Jan 1980 - Sep 2024 |
| Edmiston Oil Company, Inc. | Kansas | 2,079 BBLs | 15,155 MCF | Jan 1980 - Sep 2024 |
| Elevate Energy LTD | Kansas | 4,538 BBLs | 389 MCF | Jan 2020 - Sep 2024 |
| Elite Group LLC | Mississippi | 1,835 BBLs | 0 MCF | Dec 1976 - Sep 2024 |
| Elk Energy Holdings LLC | Kansas | 3,574 BBLs | 5,066 MCF | Jan 2010 - Sep 2024 |
| Elk Operating Services, LLC | Utah | 247,208 BBLs | 762,845 MCF | Jan 2018 - Oct 2024 |
| Elm III Operating Company LLC | Kansas | 2,230 BBLs | 9,808 MCF | Jan 1980 - Sep 2024 |
| Empire New Mexico LLC | New Mexico | 40,369 BBLs | 108,007 MCF | May 2021 - Oct 2024 |
| Empire North Dakota LLC | Montana | 4,552 BBLs | 1,435 MCF | Jul 2019 - Oct 2024 |
| Empire North Dakota LLC | North Dakota | 17,361 BBLs | 1,753 MCF | Sep 2019 - Oct 2024 |
| Empresa Operating, LLC | Louisiana | 34,616 BBLs | 314,316 MCF | Sep 2019 - Jun 2024 |
| Emre Oil LLC | Wyoming | 3,802 BBLs | 0 MCF | Jul 2015 - Oct 2024 |
| Endurance Operating LLC | Louisiana | 4,641 BBLs | 9,473 MCF | Nov 2022 - Jun 2024 |
| Enduring Resources LLC | Colorado | 0 BBLs | 574,449 MCF | Nov 2017 - Oct 2024 |
| Enduring Resources, LLC | New Mexico | 329,444 BBLs | 1,499,806 MCF | Dec 2017 - Oct 2024 |
| Enerco Operating Corporation | Arkansas | 7,631 BBLs | 0 MCF | Jan 2001 - Jul 2024 |
| Enerplus Resources (USA) Corporation | Colorado | 15,127 BBLs | 30,293 MCF | Dec 2009 - Oct 2024 |
| Enerplus Resources USA Corporation | North Dakota | 1,800,308 BBLs | 3,829,863 MCF | Mar 2006 - Oct 2024 |
| Enerquest Oil & Gas, L.L.C. | Louisiana | 1,084 BBLs | 16,793 MCF | Oct 1998 - Jun 2024 |
| Enervest Production Partners, LTD. | Louisiana | 0 BBLs | 95,049 MCF | Sep 2019 - Jun 2024 |
| Ensight IV Energy Management, LLC | Louisiana | 3,813 BBLs | 2,594,146 MCF | Jul 2017 - Jul 2024 |
| Enterra Resources, LLC | Kansas | 4,666 BBLs | 11,534 MCF | Jan 2010 - Sep 2024 |
| EOG Resources Inc | New Mexico | 10,303,373 BBLs | 46,226,755 MCF | Jan 1993 - Oct 2024 |
| EOG Resources Inc | Wyoming | 1,249,477 BBLs | 7,340,025 MCF | Jan 1978 - Oct 2024 |
| EOG Resources, Inc. | North Dakota | 977,377 BBLs | 1,803,178 MCF | Apr 2001 - Oct 2024 |
| Epic Energy, L.L.C. | New Mexico | 3,255 BBLs | 301,539 MCF | Mar 2018 - Oct 2024 |
| Escambia Operating Co. LLC | Alabama | 16,165 BBLs | 299,817 MCF | Jul 1970 - Jul 2024 |
| Et Gathering & Processing LLC | Louisiana | 5,648 BBLs | 0 MCF | Oct 2023 - Jun 2024 |
| Ethyl Gas Company, LLC | Louisiana | 1,523 BBLs | 0 MCF | Nov 2021 - Jul 2024 |
| Evangeline Natural Resources, LLC | Louisiana | 3,085 BBLs | 23,814 MCF | Aug 2013 - Jun 2024 |
| Everglow Energy, LLC | Kansas | 1,428 BBLs | 2,025 MCF | Jan 2010 - Sep 2024 |
| Evergreen Natural Resources LLC | Colorado | 0 BBLs | 2,245,229 MCF | Dec 2018 - Oct 2024 |
| Excalibur Production Company, Inc. | Kansas | 5,072 BBLs | 0 MCF | Jan 1980 - Sep 2024 |
| Exco Operating Company, LP | Louisiana | 0 BBLs | 9,373,489 MCF | Jul 2008 - Jun 2024 |
| Extex Operating Co | Louisiana | 3,113 BBLs | 7,436 MCF | Dec 1999 - Jun 2024 |
| Extex Operating Company | New Mexico | 14,797 BBLs | 67,140 MCF | Apr 2021 - Oct 2024 |
| Extraction Oil & Gas LLC | Colorado | 932,067 BBLs | 6,895,873 MCF | Jul 2013 - Oct 2024 |
| Exxon Mobil Corporation | Alabama | 88 BBLs | 1,210,720 MCF | Nov 1971 - Jun 2024 |