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| Operator | Operating State | Recent Oil Production | Recent Gas Production | Production Dates on File |
|---|---|---|---|---|
| Cart Hill Energy, LLC | New Mexico | 1,616 BBLs | 3,367 MCF | May 2024 - Dec 2025 |
| Casebeer, Inc. | Kansas | 1,216 BBLs | 0 MCF | Jan 1980 - Sep 2025 |
| Casillas Petroleum Corp | Kansas | 12,900 BBLs | 256,859 MCF | Jan 2010 - Sep 2025 |
| Castex Energy, Inc. | Louisiana | 36,907 BBLs | 689,110 MCF | Jun 1988 - Jan 2025 |
| Castle Resources, Inc. | Kansas | 1,984 BBLs | 0 MCF | Jan 1980 - Sep 2025 |
| Catamount Energy Partners LLC | Colorado | 0 BBLs | 926,364 MCF | Jan 1999 - Jan 2026 |
| Catamount Energy Partners LLC | New Mexico | 0 BBLs | 84,277 MCF | Aug 2014 - Jan 2026 |
| Cci Robinson'S Bend LLC | Alabama | 0 BBLs | 155,115 MCF | Jan 1990 - Dec 2025 |
| Cenergy Resources LLC | Wyoming | 4,844 BBLs | 51,654 MCF | Jul 2023 - Nov 2025 |
| Century Oil And Gas LLC | Wyoming | 2,778 BBLs | 12,464 MCF | Dec 2018 - Jan 2026 |
| Chaco Energy Company | Colorado | 1,365 BBLs | 4,220 MCF | Jan 1999 - Dec 2025 |
| Chaco Energy Company | Wyoming | 3,099 BBLs | 42,899 MCF | Apr 1999 - Nov 2025 |
| Chadco, Inc. | Louisiana | 1,834 BBLs | 0 MCF | Dec 1989 - Dec 2024 |
| Challenger Point Energy, LLC | North Dakota | 2,377 BBLs | 469 MCF | Jan 2018 - Jan 2026 |
| Charter Energy, Inc. | Kansas | 6,762 BBLs | 0 MCF | Jan 1980 - Sep 2025 |
| Cherokee Wells LLC | Kansas | 158 BBLs | 50,278 MCF | Sep 1980 - Sep 2025 |
| Chesapeake Operating, L.L.C. | Louisiana | 0 BBLs | 49,721,168 MCF | Jun 2014 - Dec 2024 |
| Chevron Midcontinent, L.P. | New Mexico | 2,381 BBLs | 12,904 MCF | Apr 2006 - Dec 2025 |
| Chevron U S A Inc | New Mexico | 2,735,074 BBLs | 14,297,536 MCF | Jan 1993 - Dec 2025 |
| Chevron U.S.A. Inc. | Alabama | 0 BBLs | 52,008 MCF | Oct 1962 - Dec 2025 |
| Chevron USA Inc | Colorado | 595 BBLs | 268,374 MCF | Jan 1999 - Dec 2025 |
| Chi Operating Inc | New Mexico | 13,566 BBLs | 27,345 MCF | Jan 1993 - Jan 2026 |
| Chieftain Oil Co., Inc. | Kansas | 2,310 BBLs | 88,207 MCF | Jan 1980 - Sep 2025 |
| Chipcore LLC | Wyoming | 5,530 BBLs | 632 MCF | Sep 2012 - Jan 2026 |
| Chisos, LTD | New Mexico | 855 BBLs | 6,080 MCF | Aug 2002 - Jan 2026 |
| Chizum Oil, LLC | Kansas | 2,593 BBLs | 0 MCF | May 2018 - Sep 2025 |
| Cholla Production, LLC | Kansas | 1,921 BBLs | 0 MCF | Jan 1980 - Sep 2025 |
| Christian Oil Co Inc | Michigan | 1,443 BBLs | 0 MCF | Jul 1985 - Dec 2025 |
| Cimarex Energy Co. Of Colorado | New Mexico | 530,644 BBLs | 2,274,876 MCF | May 1997 - Dec 2025 |
| Cimic Energy, LLC | Louisiana | 1,933 BBLs | 0 MCF | Jan 2011 - Jan 2025 |
| Citation Oil & Gas Corp | Colorado | 16,025 BBLs | 121,709 MCF | Jan 1999 - Jan 2026 |
| Citation Oil & Gas Corp | New Mexico | 421 BBLs | 20,255 MCF | Jan 1993 - Jan 2026 |
| Citation Oil & Gas Corp | Utah | 19,568 BBLs | 11,881 MCF | Jan 1973 - Jan 2026 |
| Citation Oil & Gas Corp. | Kansas | 3,639 BBLs | 0 MCF | Jan 1980 - Sep 2025 |
| Citation Oil & Gas Corp. | Montana | 15,945 BBLs | 1,757 MCF | Jan 1991 - Dec 2025 |
| Citation Oil & Gas Corp. | North Dakota | 13,637 BBLs | 4,655 MCF | Oct 1996 - Jan 2026 |
| Citation Oil & Gas Corporation | Wyoming | 88,443 BBLs | 13,868 MCF | Jan 1981 - Jan 2026 |
| Civitas North LLC | Colorado | 25,718 BBLs | 97,932 MCF | Oct 2010 - Dec 2025 |
| Civitas Permian Operating, LLC | New Mexico | 976,327 BBLs | 4,572,351 MCF | Feb 2024 - Dec 2025 |
| CML Exploration, LLC | New Mexico | 4,712 BBLs | 10,516 MCF | Nov 2007 - Jan 2026 |
| CMX, Inc. | Kansas | 2,016 BBLs | 9,369 MCF | Jan 1980 - Sep 2025 |
| Coastal Plains Energy Inc | Utah | 0 BBLs | 22,127 MCF | Jun 2002 - Jan 2026 |
| Cobalt Energy LLC | Kansas | 3,504 BBLs | 0 MCF | Mar 2012 - Sep 2025 |
| Cobra Oil & Gas Corp | Utah | 0 BBLs | 120,060 MCF | Aug 2015 - Jan 2026 |
| Cobra Oil & Gas Corporation | North Dakota | 83,190 BBLs | 38,639 MCF | Dec 2015 - Jan 2026 |
| Cobra Oil & Gas Corporation | Wyoming | 0 BBLs | 29,966 MCF | Jan 1978 - Dec 2025 |
| Cobra Oil And Gas Corporation | Michigan | 0 BBLs | 108,374 MCF | Jun 2015 - Dec 2025 |
| COG Operating LLC | New Mexico | 2,866,887 BBLs | 12,518,410 MCF | Dec 2004 - Jan 2026 |
| COG Production, LLC | New Mexico | 388,947 BBLs | 2,442,438 MCF | Jul 2004 - Jan 2026 |
| Colt Energy Inc | Kansas | 16,023 BBLs | 47,468 MCF | Jan 1980 - Sep 2025 |