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| Operator | Operating State | Recent Oil Production | Recent Gas Production | Production Dates on File |
|---|---|---|---|---|
| Contango Resources, Inc. | Montana | 18,112 BBLs | 64,414 MCF | Dec 2020 - Oct 2024 |
| Contango Resources, LLC | New Mexico | 8,031 BBLs | 43,402 MCF | Feb 2021 - Oct 2024 |
| Continental Resources Inc | Montana | 128,401 BBLs | 280,435 MCF | Jan 1991 - Oct 2024 |
| Continental Resources Inc | Wyoming | 630,110 BBLs | 2,558,897 MCF | Jan 1993 - Nov 2024 |
| Continental Resources Inc. | Louisiana | 1,490 BBLs | 342 MCF | Sep 1995 - Jun 2024 |
| Continental Resources, Inc. | North Dakota | 4,733,496 BBLs | 17,952,264 MCF | Sep 1978 - Oct 2024 |
| Cook Inlet Energy, LLC. | Alaska | 165,253 BBLs | 65,908 MCF | Dec 2009 - Nov 2024 |
| Coral Production Corporation | Kansas | 1,877 BBLs | 0 MCF | Jan 1980 - Sep 2024 |
| Core Energy LLC | Michigan | 34,866 BBLs | 39,271 MCF | Jan 2006 - Oct 2024 |
| Cornerstone Natural Resources LLC | North Dakota | 8,761 BBLs | 16,768 MCF | Jan 2007 - Oct 2024 |
| Coteau Energy LLC | Louisiana | 11,991 BBLs | 74,072 MCF | Aug 2021 - Jun 2024 |
| Crawford Production Company | Kansas | 2,360 BBLs | 766 MCF | Jan 1980 - Sep 2024 |
| Crescent Pass Energy, LLC | Louisiana | 77 BBLs | 109,842 MCF | Aug 2018 - Jun 2024 |
| Crestone Peak Resources Operating LLC | Colorado | 1,811,418 BBLs | 7,514,392 MCF | Aug 2016 - Oct 2024 |
| Crosbys Creek Oil & Gas, LLC | Alabama | 6,315 BBLs | 35,654 MCF | Apr 1982 - Jun 2024 |
| Cross Bar Energy, LLC | Kansas | 3,244 BBLs | 0 MCF | Jan 1980 - Sep 2024 |
| Cross Timbers Energy, LLC | New Mexico | 30,112 BBLs | 412,260 MCF | Jul 2013 - Oct 2024 |
| Crowheart Energy LLC | Wyoming | 188,523 BBLs | 7,867,123 MCF | Feb 2018 - Oct 2024 |
| Crown Energy Company | Kansas | 1,766 BBLs | 0 MCF | Jan 1980 - Sep 2024 |
| Curt'S Oil Operation, LLC | Kansas | 4,985 BBLs | 310 MCF | Jan 2010 - Sep 2024 |
| Cypress Operating, Inc | Arkansas | 2,357 BBLs | 0 MCF | Jan 2001 - Jul 2024 |
| Dakota Crude, Inc. | North Dakota | 1,405 BBLs | 0 MCF | May 2003 - Oct 2024 |
| Dale E. Jackson Production Co. | Kansas | 1,963 BBLs | 0 MCF | Jan 1980 - Sep 2024 |
| Darrah Oil Company, LLC | Kansas | 18,671 BBLs | 5,595 MCF | Jan 2010 - Sep 2024 |
| Daube Company The | Wyoming | 5,892 BBLs | 450 MCF | Jan 1990 - Oct 2024 |
| Daylight Petroleum LLC | Louisiana | 8,383 BBLs | 32,179 MCF | Feb 2019 - Jul 2024 |
| Daylight Petroleum, LLC | Kansas | 1,492 BBLs | 0 MCF | Jan 2010 - Sep 2024 |
| Daystar Petroleum, Inc. | Kansas | 10,245 BBLs | 11,778 MCF | Jan 1980 - Sep 2024 |
| De Soto Oil Properties, LLC | Alabama | 1,811 BBLs | 1,497 MCF | May 1988 - Jul 2024 |
| Delta Royalties LLC | Louisiana | 2,421 BBLs | 5,625 MCF | Dec 2019 - Jun 2024 |
| Denbury Onshore, LLC | Alabama | 19,572 BBLs | 0 MCF | Jan 1956 - Jun 2024 |
| Denbury Onshore, LLC | Louisiana | 64,360 BBLs | 76,316 MCF | Jan 2004 - Jun 2024 |
| Denbury Onshore, LLC | Montana | 210,217 BBLs | 57,125 MCF | Jan 2011 - Oct 2024 |
| Denbury Onshore, LLC | North Dakota | 99,213 BBLs | 19,260 MCF | Oct 2007 - Oct 2024 |
| Desert Eagle Operating LLC | Colorado | 0 BBLs | 51,099 MCF | Jun 2022 - Oct 2024 |
| Deutsch Oil Company | Kansas | 3,132 BBLs | 1,558 MCF | Jan 1980 - Sep 2024 |
| Devon Energy Production Company LP | Wyoming | 736,620 BBLs | 1,192,876 MCF | Jan 1978 - Oct 2024 |
| Devon Energy Production Company, LP | New Mexico | 6,525,304 BBLs | 30,143,646 MCF | Jan 1993 - Oct 2024 |
| Devon Energy Williston, L.L.C. | Montana | 6,737 BBLs | 18,177 MCF | Apr 2021 - Oct 2024 |
| Dews Production LLC | Arkansas | 2,454 BBLs | 2,023 MCF | Nov 2016 - Jun 2024 |
| DGH Oil, LLC | Kansas | 4,793 BBLs | 0 MCF | Jan 1980 - Sep 2024 |
| Diamond Oil & Gas LLC | Wyoming | 1,510 BBLs | 13,681 MCF | Oct 2011 - Oct 2024 |
| Diehl Oil Inc | Kansas | 2,255 BBLs | 0 MCF | Jan 1980 - Sep 2024 |
| Diversified Production LLC | Louisiana | 13,745 BBLs | 3,480,756 MCF | May 2021 - Jun 2024 |
| Dixon Operating Company, LLC | Kansas | 12,277 BBLs | 51,418 MCF | Jan 2010 - Sep 2024 |
| DJR Operating, LLC | New Mexico | 483,413 BBLs | 1,514,600 MCF | Nov 2017 - Oct 2024 |
| DNR Oil And Gas, Inc. | Kansas | 1,785 BBLs | 0 MCF | Jan 1980 - Sep 2024 |
| Double Eagle Exploration, Inc. | Kansas | 1,540 BBLs | 0 MCF | Jan 1980 - Sep 2024 |
| Double G Petro LLC | Kansas | 1,603 BBLs | 0 MCF | Jan 2024 - Sep 2024 |
| Downing-Nelson Oil Co Inc | Kansas | 24,219 BBLs | 387 MCF | Jan 1980 - Sep 2024 |