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| Operator | Operating State | Recent Oil Production | Recent Gas Production | Production Dates on File |
|---|---|---|---|---|
| Continental Resources Inc | Montana | 120,818 BBLs | 256,658 MCF | Jan 1991 - Mar 2025 |
| Continental Resources Inc | Wyoming | 705,038 BBLs | 2,630,835 MCF | Jan 1993 - Mar 2025 |
| Continental Resources, Inc. | North Dakota | 5,114,416 BBLs | 18,710,316 MCF | Sep 1978 - Mar 2025 |
| Cook Inlet Energy, LLC. | Alaska | 141,121 BBLs | 53,084 MCF | Dec 2009 - Mar 2025 |
| Coral Production Corporation | Kansas | 1,489 BBLs | 0 MCF | Jan 1980 - Jan 2025 |
| Core Energy LLC | Michigan | 26,860 BBLs | 7,391 MCF | Jan 2006 - Mar 2025 |
| Cornerstone Natural Resources LLC | North Dakota | 9,097 BBLs | 10,408 MCF | Jan 2007 - Mar 2025 |
| Coteau Energy LLC | Louisiana | 11,100 BBLs | 72,787 MCF | Aug 2021 - Dec 2024 |
| Coterra Energy Operating Co. | New Mexico | 1,409,554 BBLs | 5,858,598 MCF | Oct 2002 - Mar 2025 |
| Crawford Production Company | Kansas | 2,301 BBLs | 765 MCF | Jan 1980 - Jan 2025 |
| Creole Operating, LLC | Louisiana | 1,922 BBLs | 11,244 MCF | May 2020 - Dec 2024 |
| Crescent Pass Energy, LLC | Louisiana | 100 BBLs | 90,211 MCF | Aug 2018 - Jan 2025 |
| Crestone Peak Resources Operating LLC | Colorado | 1,162,641 BBLs | 7,035,459 MCF | Aug 2016 - Mar 2025 |
| Crosbys Creek Oil & Gas, LLC | Alabama | 4,375 BBLs | 29,532 MCF | Apr 1982 - Feb 2025 |
| Cross Bar Energy, LLC | Kansas | 2,643 BBLs | 0 MCF | Jan 1980 - Jan 2025 |
| Cross Timbers Energy, LLC | New Mexico | 24,981 BBLs | 346,368 MCF | Jul 2013 - Feb 2025 |
| Crowheart Energy LLC | Wyoming | 256,275 BBLs | 7,145,303 MCF | Feb 2018 - Mar 2025 |
| Crown Energy Company | Kansas | 2,933 BBLs | 0 MCF | Jan 1980 - Jan 2025 |
| Cumberland Operating LLC | Wyoming | 0 BBLs | 22,423 MCF | Oct 2015 - Mar 2025 |
| Curt'S Oil Operation, LLC | Kansas | 4,522 BBLs | 218 MCF | Jan 2010 - Jan 2025 |
| Cypress Operating, Inc | Arkansas | 2,283 BBLs | 0 MCF | Jan 2001 - Jan 2025 |
| Dakota Crude, Inc. | North Dakota | 1,258 BBLs | 0 MCF | May 2003 - Mar 2025 |
| Dale E. Jackson Production Co. | Kansas | 2,124 BBLs | 0 MCF | Jan 1980 - Jan 2025 |
| Darrah Oil Company, LLC | Kansas | 15,036 BBLs | 6,240 MCF | Jan 2010 - Jan 2025 |
| Daube Company The | Wyoming | 7,714 BBLs | 450 MCF | Jan 1990 - Mar 2025 |
| Daylight Petroleum LLC | Louisiana | 6,709 BBLs | 21,077 MCF | Feb 2019 - Dec 2024 |
| Daystar Petroleum, Inc. | Kansas | 11,765 BBLs | 13,290 MCF | Jan 1980 - Jan 2025 |
| Delta Royalties LLC | Louisiana | 2,739 BBLs | 7,275 MCF | Nov 2019 - Dec 2024 |
| Denbury Onshore, LLC | Alabama | 19,820 BBLs | 0 MCF | Jan 1956 - Feb 2025 |
| Denbury Onshore, LLC | Louisiana | 76,063 BBLs | 69,845 MCF | Jan 2004 - Dec 2024 |
| Denbury Onshore, LLC | Mississippi | 33,547 BBLs | 0 MCF | Jun 1971 - Feb 2025 |
| Denbury Onshore, LLC | Montana | 288,216 BBLs | 5,844,706 MCF | Jan 2011 - Mar 2025 |
| Denbury Onshore, LLC | North Dakota | 88,153 BBLs | 18,760 MCF | Oct 2007 - Mar 2025 |
| Desert Eagle Operating LLC | Colorado | 0 BBLs | 49,605 MCF | Jun 2022 - Mar 2025 |
| Desert Mountain Energy Corp. | New Mexico | 0 BBLs | 23,677 MCF | Jan 2025 - Mar 2025 |
| Deutsch Oil Company | Kansas | 5,287 BBLs | 1,457 MCF | Jan 1980 - Jan 2025 |
| Devon Energy Production Company LP | Wyoming | 843,143 BBLs | 1,249,891 MCF | Jan 1978 - Mar 2025 |
| Devon Energy Production Company, LP | New Mexico | 6,398,964 BBLs | 28,515,040 MCF | Jan 1993 - Mar 2025 |
| Devon Energy Williston, L.L.C. | Montana | 4,941 BBLs | 12,168 MCF | Apr 2021 - Mar 2025 |
| DGH Oil, LLC | Kansas | 4,732 BBLs | 0 MCF | Jan 1980 - Jan 2025 |
| DHP Investments, LTD. | Kansas | 1,328 BBLs | 0 MCF | Mar 2008 - Jan 2025 |
| Diamond Oil & Gas LLC | Wyoming | 643 BBLs | 13,252 MCF | Oct 2011 - Mar 2025 |
| Diehl Oil Inc | Kansas | 2,932 BBLs | 0 MCF | Jan 1980 - Jan 2025 |
| Digital Operating Company LLC | Montana | 1,349 BBLs | 132 MCF | Jun 2021 - Mar 2025 |
| Diversified Production LLC | Louisiana | 8,836 BBLs | 3,242,940 MCF | May 2021 - Dec 2024 |
| Dixon Operating Company, LLC | Kansas | 12,389 BBLs | 48,857 MCF | Jan 2010 - Jan 2025 |
| DJR Operating, LLC | New Mexico | 433,114 BBLs | 1,283,325 MCF | Nov 2017 - Mar 2025 |
| Dorcheat Oil & Gas, LLC | Louisiana | 245 BBLs | 35,651 MCF | Mar 2016 - Dec 2024 |
| Double Eagle Exploration, Inc. | Kansas | 1,420 BBLs | 0 MCF | Jan 1980 - Jan 2025 |
| Double G Petro LLC | Kansas | 1,645 BBLs | 0 MCF | Jan 2024 - Jan 2025 |