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| Operator | Operating State | Recent Oil Production | Recent Gas Production | Production Dates on File |
|---|---|---|---|---|
| Barn Owls LLC | Wyoming | 38,608 BBLs | 4,162 MCF | Jul 2022 - Apr 2026 |
| Barnard Oil Operations | Kansas | 987 BBLs | 0 MCF | Jan 1980 - Feb 2026 |
| Barrett Corporation* Bill | Colorado | 158,321 BBLs | 927,655 MCF | Jan 1999 - Mar 2026 |
| Basgall Oil LLC | Kansas | 1,311 BBLs | 0 MCF | Jan 1980 - Feb 2026 |
| Bauer Oil Investment, LLC | Kansas | 1,144 BBLs | 0 MCF | Feb 1980 - Feb 2026 |
| Bay Gas, LLC | Louisiana | 1,785 BBLs | 0 MCF | Nov 2003 - Dec 2024 |
| Bayless Producer LLC* Robert L | Colorado | 1,361 BBLs | 29,354 MCF | Jan 1999 - Mar 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 | 167,178 BBLs | 695,646 MCF | Jan 1999 - Apr 2026 |
| Bce-Mach III LLC | Kansas | 9,666 BBLs | 217,856 MCF | Jan 2020 - Feb 2026 |
| Bce-Mach III LLC | New Mexico | 4,640 BBLs | 10,119 MCF | Oct 2025 - May 2026 |
| Bce-Mach LLC | Kansas | 20,377 BBLs | 201,640 MCF | Jun 2010 - Feb 2026 |
| Bce-Mach LLC | Wyoming | 588 BBLs | 287,450 MCF | May 2025 - Apr 2026 |
| BCP Resources, LLC | New Mexico | 961 BBLs | 728 MCF | Feb 2024 - May 2026 |
| Bear Petroleum, LLC | Kansas | 3,941 BBLs | 8,272 MCF | Jan 1980 - Feb 2026 |
| Becker Oil Corporation | Kansas | 3,043 BBLs | 48,795 MCF | Jan 1980 - Feb 2026 |
| Beeman Oil & Gas LLC | Colorado | 3,108 BBLs | 13,145 MCF | Jan 1999 - Apr 2026 |
| Behm Energy, Inc. | Montana | 3,841 BBLs | 0 MCF | May 1996 - Apr 2026 |
| Bennett & Schulte Oil Co., A General Partnership | Kansas | 3,167 BBLs | 0 MCF | Jan 1980 - Feb 2026 |
| Benson-Montin-Greer Drilling Corp | New Mexico | 5,197 BBLs | 44,067 MCF | Jan 1993 - May 2026 |
| Beren Corporation | Colorado | 1,600 BBLs | 0 MCF | Jan 1999 - Apr 2026 |
| Beren Corporation | Kansas | 3,324 BBLs | 11,875 MCF | Jan 1980 - Feb 2026 |
| Beren Corporation | Montana | 1,027 BBLs | 0 MCF | Jan 1991 - Apr 2026 |
| Beren Corporation | Wyoming | 1,426 BBLs | 0 MCF | Jan 1978 - May 2026 |
| Berenergy Corporation | North Dakota | 9,001 BBLs | 208 MCF | May 2001 - May 2026 |
| Berenergy Corporation | Wyoming | 2,158 BBLs | 2,844 MCF | Jan 1987 - May 2026 |
| Berexco LLC | Kansas | 123,750 BBLs | 66,189 MCF | Jan 1980 - Feb 2026 |
| Berry Petroleum Company LLC | Utah | 105,589 BBLs | 574,726 MCF | Dec 2013 - Apr 2026 |
| BG-5, Inc. | Kansas | 1,448 BBLs | 0 MCF | Jan 1980 - Feb 2026 |
| BHB Oil, Inc | Louisiana | 1,303 BBLs | 2,463 MCF | Sep 1985 - Dec 2024 |
| Big 'O' | Kansas | 1,128 BBLs | 0 MCF | Jan 1980 - Feb 2026 |
| Big Muddy Operating LLC | Wyoming | 3,506 BBLs | 0 MCF | Oct 2016 - Apr 2026 |
| Big Star Investments, LLC | New Mexico | 1,355 BBLs | 49 MCF | May 2022 - Apr 2026 |
| Bird Dog Oil, LLC | Kansas | 1,797 BBLs | 0 MCF | May 2012 - Feb 2026 |
| Birk Petroleum | Kansas | 1,278 BBLs | 0 MCF | Jan 1980 - Feb 2026 |
| Bison IV Operating LLC | Colorado | 1,394,792 BBLs | 4,166,686 MCF | Jan 1999 - Mar 2026 |
| Bison IV Operating LLC | Wyoming | 26,191 BBLs | 32,570 MCF | Mar 2023 - Apr 2026 |
| Black Bear Oil Corporation | Wyoming | 7,126 BBLs | 35,554 MCF | May 2003 - Apr 2026 |
| Black Jack Oil Company, Inc. | Mississippi | 1,146 BBLs | 4 MCF | Dec 1976 - Apr 2026 |
| Black Jack Operating, LLC | Louisiana | 2,981 BBLs | 18,211 MCF | Jun 2023 - Dec 2024 |
| Black Oak Exploration, LLC | Kansas | 3,048 BBLs | 317 MCF | Feb 2010 - Feb 2026 |
| Black Rock Resources, LLC | Kansas | 2,254 BBLs | 0 MCF | Jan 2010 - Feb 2026 |
| Black Warrior Methane Corp. | Alabama | 0 BBLs | 186,479 MCF | Feb 1982 - Mar 2026 |
| Block T Operating, LLC | Alabama | 2,147 BBLs | 0 MCF | Dec 1945 - Mar 2026 |
| Blue Dome Operating, LLC | Louisiana | 0 BBLs | 4,778,002 MCF | Jan 2019 - Dec 2024 |
| Blue Goose Drilling Company, Inc. | Kansas | 1,977 BBLs | 0 MCF | Jul 1985 - Feb 2026 |
| Bluecrest Alaska Operating LLC | Alaska | 13,815 BBLs | 14,166 MCF | Jan 2015 - Mar 2026 |
| Bluejacket Operating, LLC | Kansas | 996 BBLs | 0 MCF | Jan 2020 - Feb 2026 |
| Blueridge Petroleum Corporation | Kansas | 6,988 BBLs | 0 MCF | Jan 1980 - Feb 2026 |