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| Operator | Operating State | Recent Oil Production | Recent Gas Production | Production Dates on File |
|---|---|---|---|---|
| Colt Energy Inc | Kansas | 15,769 BBLs | 43,268 MCF | Jan 1980 - May 2026 |
| Compass Energy Operating, LLC | Louisiana | 138 BBLs | 869,300 MCF | Jul 2014 - Jan 2025 |
| Compass Exploration LLC | Kansas | 1,614 BBLs | 0 MCF | Jan 2020 - May 2026 |
| Comstock Oil & Gas--La, LLC | Louisiana | 690 BBLs | 39,125,046 MCF | Apr 2005 - Dec 2024 |
| Conocophillips Alaska, Inc. | Alaska | 3,652,782 BBLs | 10,204,933 MCF | Dec 1963 - Feb 2026 |
| Conocophillips Company | New Mexico | 910,191 BBLs | 3,349,826 MCF | Jan 2003 - Jul 2026 |
| Contango Resources LLC | Wyoming | 343,335 BBLs | 10,327,234 MCF | Feb 2020 - Jul 2026 |
| Contango Resources, Inc. | Montana | 5,278 BBLs | 6,099 MCF | Dec 2020 - Jul 2026 |
| Continental Resources Inc | Montana | 155,337 BBLs | 346,448 MCF | Jan 1991 - Jul 2026 |
| Continental Resources Inc | Wyoming | 1,014,209 BBLs | 3,043,714 MCF | Jan 1993 - Jul 2026 |
| Continental Resources, Inc. | North Dakota | 4,302,306 BBLs | 18,927,581 MCF | Sep 1978 - Jul 2026 |
| Cook Inlet Energy, LLC. | Alaska | 80,432 BBLs | 38,413 MCF | Dec 2009 - Feb 2026 |
| Coral Production Corporation | Kansas | 1,273 BBLs | 0 MCF | Jan 1980 - May 2026 |
| Cornerstone Natural Resources LLC | North Dakota | 7,323 BBLs | 9,745 MCF | Jan 2007 - Jul 2026 |
| Coteau Energy LLC | Louisiana | 11,100 BBLs | 72,787 MCF | Aug 2021 - Dec 2024 |
| Coterra Energy Operating Co. | New Mexico | 3,905,560 BBLs | 15,395,814 MCF | Oct 2002 - Jul 2026 |
| Covalence Operating Company LLC | Colorado | 20,503 BBLs | 245,395 MCF | Nov 2025 - Jul 2026 |
| Crawford Production Company | Kansas | 2,011 BBLs | 689 MCF | Jan 1980 - May 2026 |
| Creole Operating, LLC | Louisiana | 1,922 BBLs | 11,244 MCF | May 2020 - Dec 2024 |
| Crescent Energy Operating, LLC | Utah | 38,858 BBLs | 119,078 MCF | Sep 2025 - Jul 2026 |
| Crescent Pass Energy, LLC | Louisiana | 100 BBLs | 90,211 MCF | Aug 2018 - Jan 2025 |
| Crosbys Creek Oil & Gas, LLC | Alabama | 5,152 BBLs | 42,403 MCF | Apr 1982 - Jun 2026 |
| Cross Bar Energy, LLC | Kansas | 5,365 BBLs | 0 MCF | Jan 1980 - May 2026 |
| Cross Timbers Energy, LLC | New Mexico | 1,484 BBLs | 6,539 MCF | Jul 2013 - Jul 2026 |
| Crowheart Energy LLC | Wyoming | 271,720 BBLs | 9,309,960 MCF | Feb 2018 - Jun 2026 |
| Crown Energy Company | Kansas | 2,538 BBLs | 0 MCF | Jan 1980 - May 2026 |
| Ctoc Energy, LLC | New Mexico | 22,908 BBLs | 347,469 MCF | Jun 2026 - Jul 2026 |
| Cumberland Operating LLC | Wyoming | 242 BBLs | 22,392 MCF | Oct 2015 - Jul 2026 |
| Curt'S Oil Operation, LLC | Kansas | 4,372 BBLs | 1,453 MCF | Jan 2010 - May 2026 |
| Dakota Crude, Inc. | North Dakota | 1,168 BBLs | 0 MCF | May 2003 - Jul 2026 |
| Dakota Resources, Inc | New Mexico | 1,436 BBLs | 1,197 MCF | Jan 1993 - Jul 2026 |
| Dale E. Jackson Production Co. | Kansas | 2,415 BBLs | 0 MCF | Jan 1980 - May 2026 |
| Darrah Oil Company, LLC | Kansas | 16,800 BBLs | 5,277 MCF | Jan 2010 - May 2026 |
| Daube Company The | Wyoming | 7,223 BBLs | 450 MCF | Jan 1990 - Jul 2026 |
| Daylight Petroleum LLC | Louisiana | 6,709 BBLs | 21,077 MCF | Feb 2019 - Dec 2024 |
| Daystar Petroleum, Inc. | Kansas | 9,553 BBLs | 12,614 MCF | Jan 1980 - May 2026 |
| DBD Oil, LLC | Kansas | 998 BBLs | 0 MCF | Jan 1980 - May 2026 |
| De Soto Oil Properties, LLC | Alabama | 1,732 BBLs | 1,405 MCF | May 1988 - Jun 2026 |
| Delta Royalties LLC | Louisiana | 2,739 BBLs | 7,275 MCF | Nov 2019 - Dec 2024 |
| Denbury Onshore LLC | Wyoming | 124,679 BBLs | 100,485 MCF | Jan 2011 - Jun 2026 |
| Denbury Onshore, LLC | Alabama | 21,307 BBLs | 0 MCF | Jan 1956 - Jun 2026 |
| Denbury Onshore, LLC | Louisiana | 76,063 BBLs | 69,845 MCF | Jan 2004 - Dec 2024 |
| Denbury Onshore, LLC | Mississippi | 33,306 BBLs | 0 MCF | Jun 1971 - Jun 2026 |
| Denbury Onshore, LLC | Montana | 72,229 BBLs | 5,056,537 MCF | Jan 2011 - Jul 2026 |
| 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 | 2,787 BBLs | 466 MCF | Jan 1980 - May 2026 |
| Devon Energy Production Company LP | Wyoming | 728,853 BBLs | 1,181,181 MCF | Jan 1978 - Jul 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 |