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| Operator | Operating State | Recent Oil Production | Recent Gas Production | Production Dates on File |
|---|---|---|---|---|
| Carol-Holly Oil Corporation | Wyoming | 1,215 BBLs | 837 MCF | Jan 1984 - Sep 2025 |
| Cart Hill Energy, LLC | New Mexico | 1,959 BBLs | 3,609 MCF | May 2024 - Sep 2025 |
| Casillas Petroleum Corp | Kansas | 13,824 BBLs | 255,679 MCF | Jan 2010 - Jun 2025 |
| Castex Energy, Inc. | Louisiana | 36,907 BBLs | 689,110 MCF | Jun 1988 - Jan 2025 |
| Castle Resources, Inc. | Kansas | 2,270 BBLs | 0 MCF | Jan 1980 - Jun 2025 |
| Cat Creek Holdings LLC | Montana | 1,210 BBLs | 0 MCF | Aug 2020 - Aug 2025 |
| Catamount Energy Partners LLC | Colorado | 0 BBLs | 950,989 MCF | Jan 1999 - Aug 2025 |
| Catamount Energy Partners LLC | New Mexico | 0 BBLs | 72,596 MCF | Aug 2014 - Sep 2025 |
| Cci Robinson'S Bend LLC | Alabama | 0 BBLs | 160,631 MCF | Jan 1990 - Jul 2025 |
| Cenergy Resources LLC | Wyoming | 4,573 BBLs | 32,766 MCF | Jul 2023 - Aug 2025 |
| Century Oil And Gas LLC | Wyoming | 2,732 BBLs | 14,359 MCF | Dec 2018 - Sep 2025 |
| Chaco Energy Company | Colorado | 1,673 BBLs | 4,361 MCF | Jan 1999 - Aug 2025 |
| Chadco, Inc. | Louisiana | 1,834 BBLs | 0 MCF | Dec 1989 - Dec 2024 |
| Challenger Point Energy, LLC | North Dakota | 3,176 BBLs | 17,969 MCF | Jan 2018 - Aug 2025 |
| Charles P Dunning LLC | Colorado | 1,194 BBLs | 398 MCF | Jan 1999 - Sep 2025 |
| Charter Energy, Inc. | Kansas | 6,898 BBLs | 0 MCF | Jan 1980 - Jun 2025 |
| Cherokee Wells LLC | Kansas | 165 BBLs | 51,376 MCF | Sep 1980 - Jun 2025 |
| Chesapeake Operating, L.L.C. | Louisiana | 0 BBLs | 49,721,168 MCF | Jun 2014 - Dec 2024 |
| Chevron Midcontinent, L.P. | New Mexico | 3,178 BBLs | 11,532 MCF | Apr 2006 - Aug 2025 |
| Chevron U S A Inc | New Mexico | 2,313,403 BBLs | 12,527,928 MCF | Jan 1993 - Aug 2025 |
| Chevron U.S.A. Inc. | Alabama | 0 BBLs | 51,696 MCF | Oct 1962 - Jul 2025 |
| Chevron USA Inc | Colorado | 465 BBLs | 241,375 MCF | Jan 1999 - Aug 2025 |
| Chi Operating Inc | New Mexico | 13,412 BBLs | 10,224 MCF | Jan 1993 - Aug 2025 |
| Chieftain Oil Co., Inc. | Kansas | 2,228 BBLs | 85,126 MCF | Jan 1980 - Jun 2025 |
| Chipcore LLC | Wyoming | 6,169 BBLs | 1,283 MCF | Sep 2012 - Aug 2025 |
| Chizum Oil, LLC | Kansas | 2,597 BBLs | 0 MCF | May 2018 - Jun 2025 |
| Cholla Production, LLC | Kansas | 1,787 BBLs | 0 MCF | Jan 1980 - Jun 2025 |
| Chris Batchman Inc. | Kansas | 1,498 BBLs | 0 MCF | Jan 2010 - Jun 2025 |
| Christian Oil Co Inc | Michigan | 2,086 BBLs | 0 MCF | Jul 1985 - Aug 2025 |
| Cimarex Energy Co. Of Colorado | New Mexico | 357,847 BBLs | 1,826,423 MCF | May 1997 - Aug 2025 |
| Cimic Energy, LLC | Louisiana | 1,933 BBLs | 0 MCF | Jan 2011 - Jan 2025 |
| Citation Oil & Gas Corp | Colorado | 19,725 BBLs | 154,118 MCF | Jan 1999 - Aug 2025 |
| Citation Oil & Gas Corp | New Mexico | 329 BBLs | 22,795 MCF | Jan 1993 - Sep 2025 |
| Citation Oil & Gas Corp | Utah | 19,624 BBLs | 12,473 MCF | Jan 1973 - Sep 2025 |
| Citation Oil & Gas Corp. | Kansas | 3,746 BBLs | 0 MCF | Jan 1980 - Jun 2025 |
| Citation Oil & Gas Corp. | Montana | 16,630 BBLs | 900 MCF | Jan 1991 - Aug 2025 |
| Citation Oil & Gas Corp. | North Dakota | 17,522 BBLs | 7,616 MCF | Oct 1996 - Aug 2025 |
| Citation Oil & Gas Corporation | Wyoming | 93,098 BBLs | 13,642 MCF | Jan 1981 - Sep 2025 |
| Civitas North LLC | Colorado | 158,341 BBLs | 713,170 MCF | Oct 2010 - Aug 2025 |
| Civitas Permian Operating, LLC | New Mexico | 956,890 BBLs | 4,850,029 MCF | Feb 2024 - Aug 2025 |
| Clapp Oil LLC | Kansas | 1,294 BBLs | 0 MCF | Jan 2020 - Jun 2025 |
| Clarkco Services, Inc. | Mississippi | 1,423 BBLs | 0 MCF | Dec 1976 - Aug 2025 |
| CML Exploration, LLC | New Mexico | 4,490 BBLs | 10,371 MCF | Nov 2007 - Sep 2025 |
| CMX, Inc. | Kansas | 1,771 BBLs | 12,145 MCF | Jan 1980 - Jun 2025 |
| Coastal Plains Energy Inc | Utah | 0 BBLs | 25,343 MCF | Jun 2002 - Sep 2025 |
| Cobalt Energy LLC | Kansas | 5,116 BBLs | 0 MCF | Mar 2012 - Jun 2025 |
| Cobra Oil & Gas Corp | Utah | 732 BBLs | 115,887 MCF | Aug 2015 - Sep 2025 |
| Cobra Oil & Gas Corporation | North Dakota | 90,983 BBLs | 39,245 MCF | Dec 2015 - Aug 2025 |
| Cobra Oil & Gas Corporation | Wyoming | 65 BBLs | 35,307 MCF | Jan 1978 - Aug 2025 |
| Cobra Oil And Gas Corporation | Michigan | 0 BBLs | 76,212 MCF | Jun 2015 - Aug 2025 |