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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 | 683,555 BBLs | 1,523,520 MCF | Jan 2022 - Aug 2025 |
| Axis Exploration LLC | Colorado | 26,001 BBLs | 93,893 MCF | Oct 2016 - Jul 2025 |
| Aztec Oil Operating LLC | Kansas | 6,336 BBLs | 329 MCF | Jan 2010 - Jun 2025 |
| Azul Operating, LLC | Louisiana | 0 BBLs | 2,660,194 MCF | Nov 2023 - Dec 2024 |
| Bach Oil Production | Kansas | 11,239 BBLs | 0 MCF | Jan 1980 - Jun 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 | 4,775 BBLs | 0 MCF | Jan 1980 - Jun 2025 |
| Ballard Petroleum Holdings LLC | Wyoming | 241,817 BBLs | 598,062 MCF | Jan 1983 - Jul 2025 |
| Ballard Petroleum Holdings, LLC | North Dakota | 13,202 BBLs | 0 MCF | May 2003 - Aug 2025 |
| Bam Permian Operating, LLC | New Mexico | 11,634 BBLs | 112,007 MCF | Apr 2019 - Jul 2025 |
| Barn Owls LLC | Wyoming | 24,235 BBLs | 2,224 MCF | Jul 2022 - Aug 2025 |
| Barrett Corporation* Bill | Colorado | 216,086 BBLs | 1,120,332 MCF | Sep 2004 - Jul 2025 |
| Bay Gas, LLC | Louisiana | 1,785 BBLs | 0 MCF | Nov 2003 - Dec 2024 |
| Bayless Producer LLC* Robert L | Colorado | 1,788 BBLs | 27,060 MCF | Jan 1999 - Jul 2025 |
| 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 | 11,957 BBLs | 251,021 MCF | Jan 2020 - Jun 2025 |
| Bce-Mach LLC | Kansas | 19,401 BBLs | 229,253 MCF | Jun 2010 - Jun 2025 |
| Bce-Mach LLC | Wyoming | 549 BBLs | 325,818 MCF | May 2025 - Aug 2025 |
| BCP Resources, LLC | New Mexico | 1,205 BBLs | 3,615 MCF | Feb 2024 - Aug 2025 |
| Bear Petroleum, LLC | Kansas | 4,303 BBLs | 7,297 MCF | Jan 1980 - Jun 2025 |
| Beartooth Oil & Gas Co | Utah | 11 BBLs | 26,653 MCF | Jan 1983 - Jul 2025 |
| Becker Oil Corporation | Kansas | 3,053 BBLs | 50,774 MCF | Jan 1980 - Jun 2025 |
| Beeman Oil & Gas LLC | Colorado | 2,176 BBLs | 3,136 MCF | Jan 1999 - Aug 2025 |
| Behm Energy, Inc. | Montana | 4,437 BBLs | 0 MCF | May 1996 - Jul 2025 |
| Bennett & Schulte Oil Co., A General Partnership | Kansas | 3,897 BBLs | 0 MCF | Jan 1980 - Jun 2025 |
| Benson-Montin-Greer Drilling Corp | New Mexico | 6,063 BBLs | 50,278 MCF | Jan 1993 - Aug 2025 |
| Beren Corporation | Colorado | 1,749 BBLs | 0 MCF | Jan 1999 - Aug 2025 |
| Beren Corporation | Kansas | 3,474 BBLs | 12,845 MCF | Jan 1980 - Jun 2025 |
| Beren Corporation | Wyoming | 1,414 BBLs | 0 MCF | Jan 1978 - Aug 2025 |
| Berenergy Corporation | North Dakota | 10,002 BBLs | 234 MCF | May 2001 - Aug 2025 |
| Berenergy Corporation | Wyoming | 2,048 BBLs | 3,547 MCF | Jan 1987 - Aug 2025 |
| Berexco LLC | Kansas | 134,396 BBLs | 106,449 MCF | Jan 1980 - Jun 2025 |
| Berry Petroleum Company LLC | Utah | 74,375 BBLs | 544,976 MCF | Dec 2013 - Aug 2025 |
| BG-5, Inc. | Kansas | 1,488 BBLs | 0 MCF | Jan 1980 - Jun 2025 |
| BHB Oil, Inc | Louisiana | 1,303 BBLs | 2,463 MCF | Sep 1985 - Dec 2024 |
| Big 'O' | Kansas | 1,443 BBLs | 0 MCF | Jan 1980 - Jun 2025 |
| Big Muddy Operating LLC | Wyoming | 3,247 BBLs | 0 MCF | Oct 2016 - Jul 2025 |
| Bird Dog Oil, LLC | Kansas | 2,113 BBLs | 0 MCF | May 2012 - Jun 2025 |
| Birk Petroleum | Kansas | 1,442 BBLs | 0 MCF | Jan 1980 - Jun 2025 |
| Bison IV Operating LLC | Colorado | 776,307 BBLs | 2,416,403 MCF | Dec 2017 - Jul 2025 |
| Bison IV Operating LLC | Wyoming | 28,636 BBLs | 34,252 MCF | Mar 2023 - Aug 2025 |
| Bison Operating LLC | Wyoming | 6,055 BBLs | 3,181 MCF | Nov 2022 - Jul 2025 |
| Black Bear Oil Corporation | Wyoming | 10,850 BBLs | 43,250 MCF | May 2003 - Aug 2025 |
| Black Gold Services Inc | Wyoming | 1,519 BBLs | 1 MCF | Jan 2021 - Aug 2025 |
| Black Jack Oil Company., Inc. | Mississippi | 5,487 BBLs | 691 MCF | Dec 1976 - Jun 2025 |
| Black Jack Operating, LLC | Louisiana | 2,981 BBLs | 18,211 MCF | Jun 2023 - Dec 2024 |