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| Operator | Operating State | Recent Oil Production | Recent Gas Production | Production Dates on File |
|---|---|---|---|---|
| Australis TMS Inc. | Mississippi | 15,324 BBLs | 16,408 MCF | Dec 2007 - Jun 2025 |
| Avant Operating, LLC | New Mexico | 591,725 BBLs | 1,322,456 MCF | Jan 2022 - Jun 2025 |
| Axis Exploration LLC | Colorado | 26,001 BBLs | 93,893 MCF | Oct 2016 - Jul 2025 |
| Aztec Oil Operating LLC | Kansas | 6,174 BBLs | 325 MCF | Jan 2010 - May 2025 |
| Azul Operating, LLC | Louisiana | 0 BBLs | 2,660,194 MCF | Nov 2023 - Dec 2024 |
| Bach Oil Production | Kansas | 12,081 BBLs | 0 MCF | Jan 1980 - May 2025 |
| Badger Energy LLC | Louisiana | 26,320 BBLs | 27,800 MCF | Feb 2012 - Dec 2024 |
| Bain Resources, Inc. | Montana | 2,446 BBLs | 834 MCF | May 2021 - Jul 2025 |
| Baird Oil Company LLC | Kansas | 4,187 BBLs | 0 MCF | Jan 1980 - May 2025 |
| Ballard Petroleum Holdings LLC | Wyoming | 213,034 BBLs | 538,116 MCF | Jan 1983 - Jul 2025 |
| Ballard Petroleum Holdings, LLC | North Dakota | 13,350 BBLs | 0 MCF | May 2003 - Jul 2025 |
| Bam Permian Operating, LLC | New Mexico | 7,171 BBLs | 94,618 MCF | Apr 2019 - Jul 2025 |
| Barn Owls LLC | Wyoming | 25,692 BBLs | 1,911 MCF | Jul 2022 - Jul 2025 |
| Barrett Corporation* Bill | Colorado | 216,086 BBLs | 1,120,332 MCF | Sep 2004 - Jul 2025 |
| Basgall Oil LLC | Kansas | 1,137 BBLs | 0 MCF | Jan 1980 - May 2025 |
| Bay Gas, LLC | Louisiana | 1,785 BBLs | 0 MCF | Nov 2003 - Dec 2024 |
| Bayou Bouillon Operating LLC | Louisiana | 34,155 BBLs | 16,425 MCF | Dec 2015 - Dec 2024 |
| Bayou State Oil Corporation | Louisiana | 8,458 BBLs | 647 MCF | Jan 1977 - Dec 2024 |
| Bayswater Exploration And Production LLC | Colorado | 296,367 BBLs | 868,497 MCF | Feb 2008 - Jul 2025 |
| Bce-Mach III LLC | Kansas | 11,516 BBLs | 248,849 MCF | Jan 2020 - May 2025 |
| Bce-Mach LLC | Kansas | 19,866 BBLs | 204,426 MCF | Jun 2010 - May 2025 |
| Bce-Mach LLC | Wyoming | 655 BBLs | 323,152 MCF | May 2025 - Jul 2025 |
| BCP Resources, LLC | New Mexico | 925 BBLs | 3,500 MCF | Feb 2024 - Jul 2025 |
| Bear Petroleum, LLC | Kansas | 4,007 BBLs | 5,320 MCF | Jan 1980 - May 2025 |
| Beartooth Oil & Gas Co | Utah | 11 BBLs | 26,653 MCF | Jan 1983 - Jul 2025 |
| Becker Oil Corporation | Kansas | 3,094 BBLs | 50,970 MCF | Jan 1980 - May 2025 |
| Beeman Oil & Gas LLC | Colorado | 2,176 BBLs | 3,136 MCF | Jan 1999 - Jul 2025 |
| Behm Energy, Inc. | Montana | 4,437 BBLs | 0 MCF | May 1996 - Jul 2025 |
| Bennett & Schulte Oil Co., A General Partnership | Kansas | 3,974 BBLs | 0 MCF | Jan 1980 - May 2025 |
| Benson-Montin-Greer Drilling Corp | New Mexico | 5,758 BBLs | 44,503 MCF | Jan 1993 - Jul 2025 |
| Beren Corporation | Colorado | 1,749 BBLs | 0 MCF | Jan 1999 - Jul 2025 |
| Beren Corporation | Kansas | 2,900 BBLs | 13,811 MCF | Jan 1980 - May 2025 |
| Beren Corporation | Montana | 1,146 BBLs | 0 MCF | Jan 1991 - Jul 2025 |
| Beren Corporation | Wyoming | 1,668 BBLs | 0 MCF | Jan 1978 - Jul 2025 |
| Berenergy Corporation | North Dakota | 10,065 BBLs | 221 MCF | May 2001 - Jul 2025 |
| Berenergy Corporation | Wyoming | 2,531 BBLs | 3,230 MCF | Jan 1987 - Jul 2025 |
| Berexco LLC | Kansas | 114,380 BBLs | 108,462 MCF | Jan 1980 - May 2025 |
| Berry Petroleum Company LLC | Utah | 74,375 BBLs | 544,976 MCF | Dec 2013 - Jul 2025 |
| BG-5, Inc. | Kansas | 1,663 BBLs | 0 MCF | Jan 1980 - May 2025 |
| BHB Oil, Inc | Louisiana | 1,303 BBLs | 2,463 MCF | Sep 1985 - Dec 2024 |
| Big 'O' | Kansas | 1,118 BBLs | 0 MCF | Jan 1980 - May 2025 |
| Big Muddy Operating LLC | Wyoming | 3,543 BBLs | 0 MCF | Oct 2016 - Jul 2025 |
| Big Star Investments, LLC | New Mexico | 1,364 BBLs | 314 MCF | May 2022 - Jun 2025 |
| Birk Petroleum | Kansas | 1,751 BBLs | 0 MCF | Jan 1980 - May 2025 |
| Bison IV Operating LLC | Wyoming | 28,363 BBLs | 31,565 MCF | Mar 2023 - Jul 2025 |
| Bison Operating LLC | Wyoming | 5,598 BBLs | 2,590 MCF | Nov 2022 - Jul 2025 |
| Black Bear Oil Corporation | Wyoming | 10,200 BBLs | 42,953 MCF | May 2003 - Jul 2025 |
| Black Gold Services Inc | Wyoming | 1,410 BBLs | 1 MCF | Jan 2021 - Jul 2025 |
| Black Jack Oil Company., Inc. | Mississippi | 3,327 BBLs | 189 MCF | Dec 1976 - Jun 2025 |
| Black Jack Operating, LLC | Louisiana | 2,981 BBLs | 18,211 MCF | Jun 2023 - Dec 2024 |