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| Operator | Operating State | Recent Oil Production | Recent Gas Production | Production Dates on File |
|---|---|---|---|---|
| Chesapeake Operating LLC | Wyoming | 731,957 BBLs | 4,213,468 MCF | Jan 2014 - Dec 2020 |
| Chesapeake Operating, Inc. | Louisiana | 3,421 BBLs | 2,501 MCF | Jun 1996 - Aug 2018 |
| Chesapeake Operating, L.L.C. | Louisiana | 0 BBLs | 36,558,764 MCF | Jul 2014 - Sep 2018 |
| Chevron Midcontinent, L.P. | New Mexico | 13,825 BBLs | 86,832 MCF | Apr 2006 - Nov 2020 |
| Chevron U S A Inc | New Mexico | 1,239,876 BBLs | 8,242,877 MCF | Jan 1993 - Nov 2020 |
| Chevron U.S.A. Inc. | Alabama | 0 BBLs | 73,785 MCF | Oct 1962 - Sep 2020 |
| Chevron U.S.A. Inc. | Louisiana | 77,643 BBLs | 45,896 MCF | Jan 1977 - Aug 2018 |
| Chevron USA Inc | Colorado | 249,694 BBLs | 5,680,745 MCF | Jan 1999 - Nov 2020 |
| Chieftain Oil Co., Inc. | Kansas | 13,045 BBLs | 111,419 MCF | Jan 1980 - Aug 2020 |
| Chipcore LLC | Wyoming | 2,350 BBLs | 33,444 MCF | Jan 1978 - Dec 2020 |
| Chisholm Energy Operating, LLC | New Mexico | 236,729 BBLs | 930,791 MCF | Jul 2017 - Nov 2020 |
| Cholla Production, LLC | Kansas | 5,440 BBLs | 0 MCF | Jan 1980 - Aug 2020 |
| Cimarex Energy Co. | New Mexico | 671,348 BBLs | 4,528,493 MCF | Oct 2002 - Nov 2020 |
| Cimarex Energy Co. Of Colorado | New Mexico | 159,658 BBLs | 1,214,509 MCF | May 1997 - Nov 2020 |
| Cimic Energy, LLC | Louisiana | 2,569 BBLs | 0 MCF | Jan 2011 - Sep 2018 |
| Citation Oil & Gas Corp | Colorado | 28,124 BBLs | 199,167 MCF | Dec 2004 - Nov 2020 |
| Citation Oil & Gas Corp | Utah | 57,888 BBLs | 56,196 MCF | Jan 1973 - Nov 2020 |
| Citation Oil & Gas Corp. | Kansas | 27,945 BBLs | 0 MCF | Jan 1980 - Aug 2020 |
| Citation Oil & Gas Corp. | Montana | 15,537 BBLs | 2,503 MCF | Jan 1991 - Oct 2020 |
| Citation Oil & Gas Corp. | North Dakota | 15,319 BBLs | 6,647 MCF | Oct 1996 - Nov 2020 |
| Citation Oil & Gas Corporation | Wyoming | 54,316 BBLs | 28,476 MCF | Jan 1978 - Dec 2020 |
| Cla-Mar Oil Company, LLC | Kansas | 2,409 BBLs | 0 MCF | Jan 2010 - Aug 2020 |
| CML Exploration, LLC | New Mexico | 7,669 BBLs | 18,820 MCF | Nov 2007 - Nov 2020 |
| CMX, Inc. | Kansas | 3,990 BBLs | 34,993 MCF | Jan 1980 - Aug 2020 |
| Coastal Plains Energy Inc | Utah | 0 BBLs | 102,290 MCF | Jun 2002 - Nov 2020 |
| Cobalt Energy LLC | Kansas | 5,249 BBLs | 0 MCF | Mar 2012 - Aug 2020 |
| Cobra Oil & Gas Corp | Utah | 234 BBLs | 288,549 MCF | Aug 2015 - Nov 2020 |
| Cobra Oil & Gas Corporation | North Dakota | 92,174 BBLs | 47,881 MCF | Dec 2015 - Nov 2020 |
| Cobra Oil And Gas Corporation | Michigan | 0 BBLs | 122,263 MCF | Jan 1986 - Sep 2020 |
| COG Operating LLC | New Mexico | 2,887,626 BBLs | 11,078,343 MCF | Dec 2004 - Nov 2020 |
| COG Production, LLC | New Mexico | 234,252 BBLs | 2,779,422 MCF | Jul 2004 - Oct 2020 |
| Colgate Operating, LLC | New Mexico | 5,727 BBLs | 54,165 MCF | Nov 2016 - Sep 2020 |
| Colt Energy Inc | Kansas | 15,443 BBLs | 28,954 MCF | Jan 1980 - Aug 2020 |
| Compass Energy Operating, LLC | Louisiana | 69 BBLs | 981,286 MCF | Jul 2014 - Aug 2018 |
| Comstock Oil & Gas--La, LLC | Louisiana | 845 BBLs | 6,035,485 MCF | Apr 2005 - Sep 2018 |
| Conoco Phillips Company | Colorado | 26,988 BBLs | 65,010 MCF | Jan 1999 - Oct 2020 |
| Conocophillips Alaska, Inc. | Alaska | 4,658,982 BBLs | 6,775,538 MCF | Dec 1963 - Nov 2020 |
| Conocophillips Company | New Mexico | 438,730 BBLs | 1,496,606 MCF | Jan 2003 - Nov 2020 |
| Conocophillips Company | Utah | 0 BBLs | 2,481,602 MCF | Jan 2003 - Nov 2020 |
| Contango Operators, Inc. | Louisiana | 5,406 BBLs | 684,585 MCF | Dec 2007 - Sep 2018 |
| Contango Resources Inc | Wyoming | 2,751 BBLs | 1,717 MCF | Jan 2019 - Dec 2020 |
| Continental Resources Inc | Montana | 206,047 BBLs | 389,724 MCF | Jan 1991 - Nov 2020 |
| Continental Resources Inc. | Louisiana | 2,223 BBLs | 1,085 MCF | Sep 1995 - Sep 2018 |
| Continental Resources, Inc. | North Dakota | 5,552,354 BBLs | 15,309,903 MCF | Sep 1978 - Nov 2020 |
| Cook Inlet Energy, LLC. | Alaska | 0 BBLs | 99,698 MCF | Dec 2009 - Nov 2020 |
| Coral Production Corporation | Kansas | 2,733 BBLs | 0 MCF | Jan 1980 - Aug 2020 |
| Coral Production Corporation | Wyoming | 2,251 BBLs | 320 MCF | Jan 1978 - Dec 2020 |
| Core Energy LLC | Michigan | 9,282 BBLs | 147 MCF | Jan 1982 - Sep 2020 |
| Cornerstone Natural Resources LLC | North Dakota | 14,114 BBLs | 19,224 MCF | Jan 2007 - Nov 2020 |
| Covey Park Gas LLC | Louisiana | 0 BBLs | 13,133,721 MCF | May 2016 - Sep 2018 |