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| Operator | Operating State | Recent Oil Production | Recent Gas Production | Production Dates on File |
|---|---|---|---|---|
| Cci Robinson'S Bend LLC | Alabama | 0 BBLs | 151,391 MCF | Jan 1990 - May 2026 |
| Century Oil And Gas LLC | Wyoming | 2,402 BBLs | 12,634 MCF | Dec 2018 - May 2026 |
| Chaco Energy Company | Kansas | 1,187 BBLs | 273 MCF | Jan 1980 - Mar 2026 |
| Chaco Energy Company | Montana | 2,247 BBLs | 0 MCF | May 1996 - Apr 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 |
| 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 | 1,598 BBLs | 10,135 MCF | Apr 2006 - May 2026 |
| Chevron U S A Inc | New Mexico | 3,103,206 BBLs | 17,450,511 MCF | Jan 1993 - May 2026 |
| Chevron U.S.A. Inc. | Alabama | 0 BBLs | 48,993 MCF | Oct 1962 - Apr 2026 |
| Chevron USA Inc | Colorado | 767 BBLs | 253,175 MCF | Jan 1999 - May 2026 |
| Chi Operating Inc | New Mexico | 10,000 BBLs | 30,305 MCF | Jan 1993 - May 2026 |
| Chieftain Oil Co., Inc. | Kansas | 2,349 BBLs | 74,368 MCF | Jan 1980 - Mar 2026 |
| Chipcore LLC | Wyoming | 4,710 BBLs | 210 MCF | Sep 2012 - May 2026 |
| Chisos, LTD | New Mexico | 878 BBLs | 1,149 MCF | Aug 2002 - 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 | 19,427 BBLs | 140,907 MCF | Jan 1999 - May 2026 |
| Citation Oil & Gas Corp | Utah | 17,868 BBLs | 10,826 MCF | Jan 1973 - Jun 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 - May 2026 |
| Citation Oil & Gas Corp. | North Dakota | 15,365 BBLs | 7,824 MCF | Oct 1996 - May 2026 |
| Citation Oil & Gas Corporation | Wyoming | 90,999 BBLs | 13,755 MCF | Jan 1981 - May 2026 |
| Clapp Oil LLC | Kansas | 937 BBLs | 0 MCF | Jan 2020 - Mar 2026 |
| CML Exploration, LLC | New Mexico | 4,503 BBLs | 8,948 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 | Alabama | 936 BBLs | 378 MCF | Sep 1990 - May 2026 |
| Cobra Oil & Gas Corporation | North Dakota | 84,936 BBLs | 40,369 MCF | Dec 2015 - May 2026 |
| Cobra Oil & Gas Corporation | Utah | 0 BBLs | 97,648 MCF | Aug 2015 - May 2026 |
| Cobra Oil & Gas Corporation | Wyoming | 473 BBLs | 32,298 MCF | Jan 1978 - Jun 2026 |
| Cobra Oil And Gas Corporation | Michigan | 0 BBLs | 96,356 MCF | Jun 2015 - Apr 2026 |
| Cody Operating, Inc. | Mississippi | 1,090 BBLs | 61,688 MCF | Dec 1976 - Apr 2026 |
| COG Operating LLC | New Mexico | 3,182,933 BBLs | 13,816,334 MCF | Dec 2004 - May 2026 |
| COG Production, LLC | New Mexico | 807,939 BBLs | 3,305,313 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 |
| Compass Exploration LLC | Kansas | 954 BBLs | 0 MCF | Jan 2020 - Mar 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 | 952,376 BBLs | 3,527,124 MCF | Jan 2003 - May 2026 |
| Contango Resources LLC | Wyoming | 361,327 BBLs | 7,744,380 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 - May 2026 |