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| Operator | Operating State | Recent Oil Production | Recent Gas Production | Production Dates on File |
|---|---|---|---|---|
| Catamount Energy Partners LLC | Colorado | 0 BBLs | 946,732 MCF | Jan 1999 - Apr 2026 |
| Catamount Energy Partners LLC | New Mexico | 0 BBLs | 64,080 MCF | Aug 2014 - May 2026 |
| Cci Robinson'S Bend LLC | Alabama | 0 BBLs | 138,731 MCF | Jan 1990 - Mar 2026 |
| Century Oil And Gas LLC | Wyoming | 2,410 BBLs | 10,622 MCF | Dec 2018 - May 2026 |
| Chaco Energy Company | Kansas | 1,187 BBLs | 273 MCF | Jan 1980 - Mar 2026 |
| Chadco, Inc. | Louisiana | 1,834 BBLs | 0 MCF | Dec 1989 - Dec 2024 |
| Challenger Point Energy, LLC | North Dakota | 2,393 BBLs | 5,622 MCF | Jan 2018 - May 2026 |
| Charles N. Griffin | Kansas | 11,997 BBLs | 8,910 MCF | Jan 2020 - Mar 2026 |
| Charles P Dunning LLC | Colorado | 1,263 BBLs | 0 MCF | Jan 1999 - Apr 2026 |
| Charter Energy, Inc. | Kansas | 5,523 BBLs | 0 MCF | Jan 1980 - Mar 2026 |
| Cherokee Wells LLC | Kansas | 481 BBLs | 42,708 MCF | Sep 1980 - Mar 2026 |
| Chesapeake Operating, L.L.C. | Louisiana | 0 BBLs | 49,721,168 MCF | Jun 2014 - Dec 2024 |
| Chevron Midcontinent, L.P. | New Mexico | 2,422 BBLs | 9,427 MCF | Apr 2006 - Apr 2026 |
| Chevron U S A Inc | New Mexico | 3,041,596 BBLs | 16,597,126 MCF | Jan 1993 - Apr 2026 |
| Chevron U.S.A. Inc. | Alabama | 0 BBLs | 45,875 MCF | Oct 1962 - Mar 2026 |
| Chevron USA Inc | Colorado | 796 BBLs | 256,364 MCF | Jan 1999 - Apr 2026 |
| Chi Operating Inc | New Mexico | 10,903 BBLs | 27,834 MCF | Jan 1993 - Apr 2026 |
| Chieftain Oil Co., Inc. | Kansas | 2,349 BBLs | 74,368 MCF | Jan 1980 - Mar 2026 |
| Chipcore LLC | Wyoming | 3,692 BBLs | 215 MCF | Sep 2012 - May 2026 |
| Chizum Oil, LLC | Kansas | 2,303 BBLs | 0 MCF | May 2018 - Mar 2026 |
| Cholla Production, LLC | Kansas | 2,785 BBLs | 0 MCF | Jan 1980 - Mar 2026 |
| Chris Batchman Inc. | Kansas | 1,172 BBLs | 0 MCF | Jan 2010 - Mar 2026 |
| Christian Oil Co Inc | Michigan | 1,710 BBLs | 0 MCF | Jul 1985 - Apr 2026 |
| Cimic Energy, LLC | Louisiana | 1,933 BBLs | 0 MCF | Jan 2011 - Jan 2025 |
| Citation Oil & Gas Corp | Colorado | 17,965 BBLs | 133,637 MCF | Jan 1999 - Apr 2026 |
| Citation Oil & Gas Corp | Utah | 19,624 BBLs | 12,615 MCF | Jan 1973 - May 2026 |
| Citation Oil & Gas Corp. | Kansas | 1,010 BBLs | 0 MCF | Jan 1980 - Mar 2026 |
| Citation Oil & Gas Corp. | Montana | 16,399 BBLs | 849 MCF | Jan 1991 - Apr 2026 |
| Citation Oil & Gas Corp. | North Dakota | 15,365 BBLs | 7,824 MCF | Oct 1996 - May 2026 |
| Citation Oil & Gas Corporation | Wyoming | 86,852 BBLs | 13,720 MCF | Jan 1981 - Apr 2026 |
| Civitas North LLC | Colorado | 18,439 BBLs | 66,936 MCF | Oct 2010 - Mar 2026 |
| Civitas Permian Operating, LLC | New Mexico | 665,134 BBLs | 3,701,609 MCF | Feb 2024 - Apr 2026 |
| CML Exploration, LLC | New Mexico | 4,639 BBLs | 8,904 MCF | Nov 2007 - May 2026 |
| CMX, Inc. | Kansas | 1,432 BBLs | 9,557 MCF | Jan 1980 - Mar 2026 |
| Cobalt Energy LLC | Kansas | 4,357 BBLs | 0 MCF | Mar 2012 - Mar 2026 |
| Cobra Oil & Gas Corporation | North Dakota | 84,936 BBLs | 40,369 MCF | Dec 2015 - May 2026 |
| Cobra Oil & Gas Corporation | Utah | 0 BBLs | 109,582 MCF | Aug 2015 - May 2026 |
| Cobra Oil & Gas Corporation | Wyoming | 143 BBLs | 34,619 MCF | Jan 1978 - May 2026 |
| Cobra Oil And Gas Corporation | Michigan | 0 BBLs | 96,356 MCF | Jun 2015 - Apr 2026 |
| COG Operating LLC | New Mexico | 3,047,224 BBLs | 13,505,182 MCF | Dec 2004 - May 2026 |
| COG Production, LLC | New Mexico | 671,541 BBLs | 2,813,351 MCF | Jul 2004 - May 2026 |
| Colt Energy Inc | Kansas | 14,902 BBLs | 38,573 MCF | Jan 1980 - Mar 2026 |
| 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 |
| Conocophillips Alaska, Inc. | Alaska | 3,652,782 BBLs | 10,204,933 MCF | Dec 1963 - Feb 2026 |
| Conocophillips Company | New Mexico | 975,073 BBLs | 3,716,947 MCF | Jan 2003 - May 2026 |
| Contango Resources LLC | Wyoming | 362,372 BBLs | 6,572,533 MCF | Feb 2020 - May 2026 |
| Contango Resources, Inc. | Montana | 18,164 BBLs | 78,251 MCF | Dec 2020 - May 2026 |
| Continental Resources Inc | Montana | 153,491 BBLs | 305,968 MCF | Jan 1991 - Apr 2026 |
| Continental Resources Inc | Wyoming | 1,119,205 BBLs | 3,170,220 MCF | Jan 1993 - Apr 2026 |