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| Operator | Operating State | Recent Oil Production | Recent Gas Production | Production Dates on File |
|---|---|---|---|---|
| Cardinal Wyoming LLC | Wyoming | 17,275 BBLs | 1 MCF | Jun 2024 - Feb 2026 |
| Carmen Schmitt, Inc. | Kansas | 19,646 BBLs | 0 MCF | Jan 1980 - Dec 2025 |
| Carol-Holly Oil Corporation | Wyoming | 1,058 BBLs | 482 MCF | Jan 1984 - Jan 2026 |
| Casillas Petroleum Corp | Kansas | 11,317 BBLs | 260,605 MCF | Jan 2010 - Dec 2025 |
| Castex Energy, Inc. | Louisiana | 36,907 BBLs | 689,110 MCF | Jun 1988 - Jan 2025 |
| Castle Resources, Inc. | Kansas | 1,769 BBLs | 0 MCF | Jan 1980 - Dec 2025 |
| Castor Production, L.L.C. | Louisiana | 1,132 BBLs | 0 MCF | Apr 2013 - Dec 2024 |
| Cat Creek Holdings LLC | Montana | 1,387 BBLs | 0 MCF | Aug 2020 - Jan 2026 |
| Catamount Energy Partners LLC | Colorado | 0 BBLs | 922,539 MCF | Jan 1999 - Jan 2026 |
| Catamount Energy Partners LLC | New Mexico | 0 BBLs | 82,826 MCF | Aug 2014 - Jan 2026 |
| Cci Robinson'S Bend LLC | Alabama | 0 BBLs | 158,535 MCF | Jan 1990 - Jan 2026 |
| Century Oil And Gas LLC | Wyoming | 1,982 BBLs | 10,795 MCF | Dec 2018 - Feb 2026 |
| Chaco Energy Company | Colorado | 1,438 BBLs | 3,965 MCF | Jan 1999 - Jan 2026 |
| Chadco, Inc. | Louisiana | 1,834 BBLs | 0 MCF | Dec 1989 - Dec 2024 |
| Challenger Point Energy, LLC | North Dakota | 2,154 BBLs | 271 MCF | Jan 2018 - Feb 2026 |
| Charter Energy, Inc. | Kansas | 4,884 BBLs | 0 MCF | Jan 1980 - Dec 2025 |
| Cherokee Wells LLC | Kansas | 310 BBLs | 48,859 MCF | Sep 1980 - Dec 2025 |
| Chesapeake Operating, L.L.C. | Louisiana | 0 BBLs | 49,721,168 MCF | Jun 2014 - Dec 2024 |
| Chevron Midcontinent, L.P. | New Mexico | 1,832 BBLs | 8,786 MCF | Apr 2006 - Jan 2026 |
| Chevron U S A Inc | New Mexico | 2,613,228 BBLs | 13,761,371 MCF | Jan 1993 - Jan 2026 |
| Chevron U.S.A. Inc. | Alabama | 0 BBLs | 52,629 MCF | Oct 1962 - Jan 2026 |
| Chevron USA Inc | Colorado | 762 BBLs | 262,388 MCF | Jan 1999 - Jan 2026 |
| Chi Operating Inc | New Mexico | 10,979 BBLs | 26,141 MCF | Jan 1993 - Jan 2026 |
| Chieftain Oil Co., Inc. | Kansas | 2,206 BBLs | 79,054 MCF | Jan 1980 - Dec 2025 |
| Chipcore LLC | Wyoming | 5,961 BBLs | 219 MCF | Sep 2012 - Jan 2026 |
| Chizum Oil, LLC | Kansas | 2,791 BBLs | 0 MCF | May 2018 - Dec 2025 |
| Cholla Production, LLC | Kansas | 2,134 BBLs | 0 MCF | Jan 1980 - Dec 2025 |
| Chris Batchman Inc. | Kansas | 1,013 BBLs | 0 MCF | Jan 2010 - Dec 2025 |
| Christian Oil Co Inc | Michigan | 2,086 BBLs | 0 MCF | Jul 1985 - Aug 2025 |
| Cimarex Energy Co. Of Colorado | New Mexico | 43,440 BBLs | 271,463 MCF | May 1997 - Jan 2026 |
| Cimic Energy, LLC | Louisiana | 1,933 BBLs | 0 MCF | Jan 2011 - Jan 2025 |
| Citation Oil & Gas Corp | Colorado | 14,887 BBLs | 117,308 MCF | Jan 1999 - Jan 2026 |
| Citation Oil & Gas Corp | Utah | 19,568 BBLs | 11,881 MCF | Jan 1973 - Feb 2026 |
| Citation Oil & Gas Corp. | Kansas | 3,231 BBLs | 0 MCF | Jan 1980 - Dec 2025 |
| Citation Oil & Gas Corp. | Montana | 15,341 BBLs | 952 MCF | Jan 1991 - Jan 2026 |
| Citation Oil & Gas Corp. | North Dakota | 13,127 BBLs | 5,954 MCF | Oct 1996 - Feb 2026 |
| Citation Oil & Gas Corporation | Wyoming | 91,163 BBLs | 14,738 MCF | Jan 1981 - Jan 2026 |
| Civitas North LLC | Colorado | 23,008 BBLs | 86,034 MCF | Oct 2010 - Jan 2026 |
| CML Exploration, LLC | New Mexico | 4,264 BBLs | 9,612 MCF | Nov 2007 - Jan 2026 |
| CMX, Inc. | Kansas | 2,832 BBLs | 7,799 MCF | Jan 1980 - Dec 2025 |
| Cobalt Energy LLC | Kansas | 4,817 BBLs | 0 MCF | Mar 2012 - Dec 2025 |
| Cobra Oil & Gas Corp | Utah | 0 BBLs | 120,060 MCF | Aug 2015 - Feb 2026 |
| Cobra Oil & Gas Corporation | North Dakota | 73,230 BBLs | 33,204 MCF | Dec 2015 - Feb 2026 |
| Cobra Oil & Gas Corporation | Wyoming | 132 BBLs | 30,219 MCF | Jan 1978 - Feb 2026 |
| Cobra Oil And Gas Corporation | Michigan | 0 BBLs | 76,212 MCF | Jun 2015 - Aug 2025 |
| COG Operating LLC | New Mexico | 2,437,621 BBLs | 10,807,714 MCF | Dec 2004 - Jan 2026 |
| COG Production, LLC | New Mexico | 299,583 BBLs | 1,913,386 MCF | Jul 2004 - Jan 2026 |
| Colt Energy Inc | Kansas | 13,640 BBLs | 46,718 MCF | Jan 1980 - Dec 2025 |
| Compass Energy Operating, LLC | Louisiana | 138 BBLs | 869,300 MCF | Jul 2014 - Jan 2025 |
| Comstock Oil & Gas--La, LLC | Louisiana | 690 BBLs | 39,125,046 MCF | Apr 2005 - Dec 2024 |