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| Operator | Operating State | Recent Oil Production | Recent Gas Production | Production Dates on File |
|---|---|---|---|---|
| Denbury Onshore, LLC | North Dakota | 97,540 BBLs | 28,710 MCF | Oct 2007 - Jul 2026 |
| Desert Eagle Operating LLC | Colorado | 0 BBLs | 41,429 MCF | Apr 2022 - Aug 2026 |
| Deutsch Oil Company | Kansas | 3,093 BBLs | 406 MCF | Jan 1980 - Jun 2026 |
| Devon Energy Production Company LP | Wyoming | 764,973 BBLs | 1,309,297 MCF | Jan 1978 - Aug 2026 |
| Devon Energy Production Company, LP | New Mexico | 7,013,774 BBLs | 38,390,477 MCF | Jan 1993 - Jul 2026 |
| Devon Energy Williston, L.L.C. | Montana | 183,337 BBLs | 168,436 MCF | Apr 2021 - Jul 2026 |
| Devon Energy Williston, L.L.C. | North Dakota | 2,695,127 BBLs | 12,256,246 MCF | Sep 2025 - Jul 2026 |
| DGH Oil, LLC | Kansas | 4,023 BBLs | 0 MCF | Jan 1980 - Jun 2026 |
| DHP Investments, LTD. | Kansas | 1,311 BBLs | 0 MCF | Mar 2008 - Jun 2026 |
| Diamond Oil & Gas LLC | Wyoming | 722 BBLs | 13,678 MCF | Oct 2011 - Aug 2026 |
| Diehl Oil Inc | Kansas | 2,731 BBLs | 0 MCF | Jan 1980 - Jun 2026 |
| Diversified Production LLC | Louisiana | 8,836 BBLs | 3,242,940 MCF | May 2021 - Dec 2024 |
| Dixon Operating Company, LLC | Kansas | 11,349 BBLs | 46,174 MCF | Jan 2010 - Jun 2026 |
| DJR Operating, LLC | New Mexico | 713,987 BBLs | 1,564,411 MCF | Nov 2017 - Jul 2026 |
| Dorcheat Oil & Gas, LLC | Louisiana | 245 BBLs | 35,651 MCF | Mar 2016 - Dec 2024 |
| Double Eagle Exploration, Inc. | Kansas | 1,900 BBLs | 0 MCF | Jan 1980 - Jun 2026 |
| Double G Petro LLC | Kansas | 2,173 BBLs | 0 MCF | Feb 2020 - Jun 2026 |
| Downing-Nelson Oil Co Inc | Kansas | 18,443 BBLs | 427 MCF | Jan 1980 - Jun 2026 |
| Dugan Production Corp | New Mexico | 2,234 BBLs | 392,104 MCF | Jan 1993 - Aug 2026 |
| Dunamis Energy Operating LLC | Colorado | 322,722 BBLs | 1,424,395 MCF | Sep 2011 - Jul 2026 |
| Dunn Exploration Company, LLC | Louisiana | 68,232 BBLs | 141,231 MCF | Apr 2010 - Jan 2025 |
| Durango Operating, LLC | Alabama | 2,072 BBLs | 30 MCF | May 1952 - Jul 2026 |
| Eagle Creek Corporation | Kansas | 2,260 BBLs | 1,006 MCF | Jan 1980 - Jun 2026 |
| Eagle Operating, Inc. | North Dakota | 3,340 BBLs | 6,060 MCF | Dec 1991 - Jul 2026 |
| Earthstone Operating, LLC | New Mexico | 719,962 BBLs | 2,808,565 MCF | Mar 2022 - Aug 2026 |
| Ecco | Kansas | 1,054 BBLs | 0 MCF | Jan 1980 - Jun 2026 |
| Edison Operating Company LLC | Kansas | 12,876 BBLs | 207,746 MCF | Jan 1980 - Jun 2026 |
| Edmiston Oil Company, Inc. | Kansas | 1,786 BBLs | 12,042 MCF | Jan 1980 - Jun 2026 |
| Egh Operating, LLC | Louisiana | 1,847 BBLs | 0 MCF | Aug 2018 - Dec 2024 |
| Eiger Operating Company, LLC | Kansas | 2,211 BBLs | 59,161 MCF | Jan 2020 - Jun 2026 |
| Elendil Resources LLC | Kansas | 797 BBLs | 24,557 MCF | Jan 2020 - Jun 2026 |
| Elevate Energy LTD | Kansas | 5,186 BBLs | 1,395 MCF | Jan 2020 - Jun 2026 |
| Elite Group LLC | Mississippi | 1,760 BBLs | 0 MCF | Dec 1976 - Jul 2026 |
| Elk Energy Holdings LLC | Kansas | 1,333 BBLs | 4,553 MCF | Jan 2010 - Jun 2026 |
| Elk Operating Services, LLC | Utah | 242,735 BBLs | 853,572 MCF | Jan 2018 - Aug 2026 |
| Elm III Operating Company LLC | Kansas | 1,739 BBLs | 8,833 MCF | Jan 1980 - Jun 2026 |
| Emep II Operating LLC | Wyoming | 154,910 BBLs | 394,706 MCF | Aug 2025 - Aug 2026 |
| Empire New Mexico LLC | New Mexico | 29,094 BBLs | 85,165 MCF | May 2021 - Jul 2026 |
| Empire North Dakota LLC | Montana | 3,186 BBLs | 0 MCF | Jul 2019 - Jul 2026 |
| Empire North Dakota LLC | North Dakota | 18,284 BBLs | 1,671 MCF | Sep 2019 - Jul 2026 |
| Empresa Operating, LLC | Louisiana | 30,933 BBLs | 276,367 MCF | Sep 2019 - Dec 2024 |
| Emre Oil LLC | Wyoming | 3,179 BBLs | 0 MCF | Jul 2015 - Jul 2026 |
| Endurance Operating LLC | Louisiana | 1,790 BBLs | 7,885 MCF | Nov 2022 - Dec 2024 |
| Enduring Resources LLC | Colorado | 0 BBLs | 439,260 MCF | Jan 1999 - Jul 2026 |
| Enduring Resources, LLC | New Mexico | 380,699 BBLs | 1,673,378 MCF | Dec 2017 - Jul 2026 |
| Enerplus Resources USA Corporation | North Dakota | 1,851,730 BBLs | 4,254,402 MCF | Mar 2006 - Jul 2026 |
| Ensight IV Energy Management, LLC | Louisiana | 4,268 BBLs | 417,482 MCF | Jul 2017 - Dec 2024 |
| Enterra Resources, LLC | Kansas | 6,179 BBLs | 44 MCF | Jan 2010 - Jun 2026 |
| EOG Resources Inc | New Mexico | 10,686,851 BBLs | 60,930,006 MCF | Jan 1993 - Jul 2026 |
| EOG Resources Inc | Wyoming | 1,226,688 BBLs | 7,134,958 MCF | Jan 1978 - Aug 2026 |