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| Operator | Operating State | Recent Oil Production | Recent Gas Production | Production Dates on File |
|---|---|---|---|---|
| Charter Energy, Inc. | Kansas | 4,780 BBLs | 0 MCF | Jan 1980 - Sep 2021 |
| Chemily Management Company | Wyoming | 2,482 BBLs | 7,314 MCF | Sep 1995 - Nov 2021 |
| Cherokee Wells LLC | Kansas | 323 BBLs | 53,531 MCF | Sep 1980 - Sep 2021 |
| Chesapeake Operating LLC | Wyoming | 369,170 BBLs | 2,560,207 MCF | Dec 1991 - Nov 2021 |
| Chesapeake Operating, L.L.C. | Louisiana | 0 BBLs | 24,659,409 MCF | Jun 2014 - Jun 2021 |
| Chevron Midcontinent, L.P. | New Mexico | 6,290 BBLs | 17,863 MCF | Apr 2006 - Nov 2021 |
| Chevron U S A Inc | New Mexico | 1,034,640 BBLs | 5,317,973 MCF | Jan 1993 - Nov 2021 |
| Chevron U.S.A. Inc. | Alabama | 0 BBLs | 66,333 MCF | Oct 1962 - Oct 2021 |
| Chevron USA Inc | Colorado | 223,101 BBLs | 5,211,481 MCF | Jan 1999 - Nov 2021 |
| Chieftain Oil Co., Inc. | Kansas | 3,959 BBLs | 102,565 MCF | Jan 1980 - Sep 2021 |
| Chipcore LLC | Wyoming | 2,778 BBLs | 663 MCF | Sep 2012 - Oct 2021 |
| Chisholm Energy Operating, LLC | New Mexico | 271,177 BBLs | 883,275 MCF | Jul 2017 - Nov 2021 |
| Chizum Oil, LLC | Kansas | 2,580 BBLs | 0 MCF | May 2018 - Sep 2021 |
| Cholla Production, LLC | Kansas | 3,576 BBLs | 0 MCF | Jan 1980 - Sep 2021 |
| Cimarex Energy Co. | New Mexico | 536,451 BBLs | 3,794,562 MCF | Oct 2002 - Nov 2021 |
| Cimarex Energy Co. Of Colorado | New Mexico | 204,571 BBLs | 1,238,120 MCF | May 1997 - Nov 2021 |
| Citation Oil & Gas Corp | Colorado | 25,657 BBLs | 204,258 MCF | Dec 2004 - Nov 2021 |
| Citation Oil & Gas Corp | Utah | 30,041 BBLs | 30,745 MCF | Jan 1973 - Nov 2021 |
| Citation Oil & Gas Corp. | Kansas | 28,105 BBLs | 0 MCF | Jan 1980 - Sep 2021 |
| Citation Oil & Gas Corp. | Montana | 15,035 BBLs | 1,971 MCF | Jan 1991 - Oct 2021 |
| Citation Oil & Gas Corp. | North Dakota | 20,496 BBLs | 9,962 MCF | Oct 1996 - Nov 2021 |
| Citation Oil & Gas Corporation | Wyoming | 52,967 BBLs | 32,905 MCF | Jan 1981 - Oct 2021 |
| Cline Production Company | Montana | 2,522 BBLs | 0 MCF | Jan 1991 - Sep 2021 |
| Clovelly Oil Co. LLC | Louisiana | 4,183 BBLs | 10,694 MCF | Dec 2008 - May 2021 |
| CML Exploration, LLC | New Mexico | 6,791 BBLs | 14,650 MCF | Nov 2007 - Nov 2021 |
| CMX, Inc. | Kansas | 3,497 BBLs | 41,299 MCF | Jan 1980 - Sep 2021 |
| Coastal Plains Energy Inc | Utah | 0 BBLs | 42,094 MCF | Jun 2002 - Nov 2021 |
| Cobalt Energy LLC | Kansas | 6,495 BBLs | 0 MCF | Mar 2012 - Sep 2021 |
| Cobra Oil & Gas Corp | Utah | 4 BBLs | 137,758 MCF | Aug 2015 - Dec 2021 |
| Cobra Oil & Gas Corporation | North Dakota | 100,742 BBLs | 49,029 MCF | Dec 2015 - Nov 2021 |
| Cobra Oil & Gas Corporation | Wyoming | 97 BBLs | 48,659 MCF | Jan 1978 - Nov 2021 |
| Cobra Oil And Gas Corporation | Michigan | 14 BBLs | 147,013 MCF | Jun 2015 - Jul 2021 |
| COG Operating LLC | New Mexico | 3,159,336 BBLs | 10,994,819 MCF | Dec 2004 - Nov 2021 |
| COG Production, LLC | New Mexico | 322,217 BBLs | 2,746,395 MCF | Jul 2004 - Nov 2021 |
| Coleman Oil & Gas Inc | Colorado | 0 BBLs | 169,313 MCF | Jan 1999 - Oct 2021 |
| Colgate Operating, LLC | New Mexico | 122,847 BBLs | 543,401 MCF | Oct 2016 - Nov 2021 |
| Colt Energy Inc | Kansas | 12,979 BBLs | 50,060 MCF | Jan 1980 - Sep 2021 |
| Compass Energy Operating, LLC | Louisiana | 190 BBLs | 1,095,720 MCF | Jul 2014 - Jul 2021 |
| Comstock Oil & Gas--La, LLC | Louisiana | 1,053 BBLs | 47,966,257 MCF | Apr 2005 - Jun 2021 |
| Conocophillips Alaska, Inc. | Alaska | 4,041,624 BBLs | 5,740,314 MCF | Dec 1963 - Oct 2021 |
| Conocophillips Company | New Mexico | 445,201 BBLs | 2,199,693 MCF | Jan 2003 - Nov 2021 |
| Conocophillips Company | Utah | 0 BBLs | 1,326,659 MCF | Jan 2003 - Nov 2021 |
| Contango Operators, Inc. | Louisiana | 2,995 BBLs | 342,822 MCF | Nov 2007 - Jun 2021 |
| Contango Resources Inc | Wyoming | 92,864 BBLs | 238,540 MCF | Feb 2020 - Oct 2021 |
| Contango Resources, Inc. | Louisiana | 2,464 BBLs | 25,069 MCF | Jul 2020 - Jun 2021 |
| Contango Resources, Inc. | Montana | 23,373 BBLs | 64,992 MCF | Dec 2020 - Oct 2021 |
| Continental Resources Inc | Montana | 158,806 BBLs | 357,694 MCF | Jan 1991 - Oct 2021 |
| Continental Resources Inc | Wyoming | 150,170 BBLs | 322,704 MCF | Jan 1993 - Nov 2021 |
| Continental Resources, Inc. | North Dakota | 4,566,573 BBLs | 14,433,332 MCF | Sep 1978 - Nov 2021 |
| Cook Inlet Energy, LLC. | Alaska | 33,473 BBLs | 39,231 MCF | Dec 2009 - Oct 2021 |