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| Operator | Operating State | Recent Oil Production | Recent Gas Production | Production Dates on File |
|---|---|---|---|---|
| Ballard Petroleum Holdings LLC | Wyoming | 226,052 BBLs | 488,932 MCF | Jan 1983 - Jun 2026 |
| Ballard Petroleum Holdings, LLC | North Dakota | 15,208 BBLs | 0 MCF | May 2003 - Jun 2026 |
| Bam Permian Operating, LLC | New Mexico | 6,902 BBLs | 25,074 MCF | Apr 2019 - Jul 2026 |
| Bareto Energy LLC | Wyoming | 25,018 BBLs | 0 MCF | Dec 2025 - Jul 2026 |
| Barn Owls LLC | Wyoming | 41,366 BBLs | 6,300 MCF | Jul 2022 - Jul 2026 |
| Barnard Oil Operations | Kansas | 1,169 BBLs | 0 MCF | Jan 1980 - Apr 2026 |
| Barrett Corporation* Bill | Colorado | 173,872 BBLs | 1,009,092 MCF | Jan 1999 - May 2026 |
| Basgall Oil LLC | Kansas | 1,454 BBLs | 0 MCF | Jan 1980 - Apr 2026 |
| Bay Gas, LLC | Louisiana | 1,785 BBLs | 0 MCF | Nov 2003 - Dec 2024 |
| Bayless Producer LLC* Robert L | Colorado | 4,707 BBLs | 31,093 MCF | Jan 1999 - May 2026 |
| 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 | 144,170 BBLs | 606,159 MCF | Jan 1999 - May 2026 |
| Bce-Mach III LLC | Kansas | 11,286 BBLs | 218,404 MCF | Jan 2020 - Apr 2026 |
| Bce-Mach III LLC | New Mexico | 4,178 BBLs | 9,156 MCF | Oct 2025 - Jul 2026 |
| Bce-Mach LLC | Kansas | 20,409 BBLs | 228,324 MCF | Jun 2010 - Apr 2026 |
| Bce-Mach LLC | Wyoming | 429 BBLs | 317,784 MCF | May 2025 - Jul 2026 |
| Bear Petroleum, LLC | Kansas | 4,932 BBLs | 8,107 MCF | Jan 1980 - Apr 2026 |
| Becker Oil Corporation | Kansas | 3,408 BBLs | 55,094 MCF | Jan 1980 - Apr 2026 |
| Beeman Oil & Gas LLC | Colorado | 3,312 BBLs | 6,355 MCF | Jan 1999 - May 2026 |
| Behm Energy, Inc. | Montana | 3,816 BBLs | 0 MCF | May 1996 - Jul 2026 |
| Bennett & Schulte Oil Co., A General Partnership | Kansas | 2,831 BBLs | 0 MCF | Jan 1980 - Apr 2026 |
| Benson-Montin-Greer Drilling Corp | New Mexico | 5,136 BBLs | 43,812 MCF | Jan 1993 - Jul 2026 |
| Beren Corporation | Colorado | 1,322 BBLs | 0 MCF | Jan 1999 - May 2026 |
| Beren Corporation | Kansas | 2,882 BBLs | 12,668 MCF | Jan 1980 - Apr 2026 |
| Beren Corporation | Montana | 1,115 BBLs | 0 MCF | Jan 1991 - Jun 2026 |
| Beren Corporation | Wyoming | 1,491 BBLs | 0 MCF | Jan 1978 - Jul 2026 |
| Berenergy Corporation | North Dakota | 9,612 BBLs | 222 MCF | May 2001 - Jun 2026 |
| Berenergy Corporation | Wyoming | 1,968 BBLs | 3,149 MCF | Jan 1987 - Jul 2026 |
| Berexco LLC | Kansas | 131,844 BBLs | 77,783 MCF | Jan 1980 - Apr 2026 |
| Berry Petroleum Company LLC | Utah | 100,466 BBLs | 604,816 MCF | Dec 2013 - Jun 2026 |
| BG-5, Inc. | Kansas | 1,309 BBLs | 0 MCF | Jan 1980 - Apr 2026 |
| BHB Oil, Inc | Louisiana | 1,303 BBLs | 2,463 MCF | Sep 1985 - Dec 2024 |
| Big 'O' | Kansas | 1,124 BBLs | 0 MCF | Jan 1980 - Apr 2026 |
| Big Muddy Operating LLC | Wyoming | 3,248 BBLs | 0 MCF | Oct 2016 - Jul 2026 |
| Big Star Investments, LLC | New Mexico | 1,536 BBLs | 49 MCF | May 2022 - Jun 2026 |
| Bird Dog Oil, LLC | Kansas | 2,613 BBLs | 0 MCF | May 2012 - Apr 2026 |
| Birk Petroleum | Kansas | 1,437 BBLs | 0 MCF | Jan 1980 - Apr 2026 |
| Bison IV Operating LLC | Colorado | 1,319,188 BBLs | 3,974,665 MCF | Jan 1999 - Jun 2026 |
| Bison IV Operating LLC | Wyoming | 27,260 BBLs | 27,133 MCF | Mar 2023 - Jun 2026 |
| Black Bear Oil Corporation | Wyoming | 7,574 BBLs | 36,964 MCF | May 2003 - Jul 2026 |
| Black Jack Operating, LLC | Louisiana | 2,981 BBLs | 18,211 MCF | Jun 2023 - Dec 2024 |
| Black Oak Exploration, LLC | Kansas | 4,174 BBLs | 0 MCF | Feb 2010 - Apr 2026 |
| Black Rock Resources, LLC | Kansas | 2,229 BBLs | 0 MCF | Jan 2010 - Apr 2026 |
| Black Warrior Methane Corp. | Alabama | 0 BBLs | 188,598 MCF | Feb 1982 - Jun 2026 |
| Block T Operating, LLC | Alabama | 1,709 BBLs | 0 MCF | Dec 1945 - Jun 2026 |
| Blue Dome Operating, LLC | Louisiana | 0 BBLs | 4,778,002 MCF | Jan 2019 - Dec 2024 |
| Blue Goose Drilling Company, Inc. | Kansas | 1,757 BBLs | 0 MCF | Jul 1985 - Apr 2026 |
| Bluecrest Alaska Operating LLC | Alaska | 13,815 BBLs | 14,166 MCF | Jan 2015 - Mar 2026 |
| Bluejacket Operating, LLC | Kansas | 1,313 BBLs | 0 MCF | Jan 2020 - Apr 2026 |