| 1 | B & W Operating, L.L.C. | Nichols Hill, OK 73116 | Oil & Gas Operator | Jan 2025 |
| 2 | B B R Oil Corporation | Norman, OK 73069 | Oil & Gas Operator | Dec 2024 |
| 3 | Bailey Oil Co., Inc. | Neodesha, KS 66757 | Oil & Gas Operator | May 2024 |
| 4 | Barrett Resources Corporation | Denver, CO 80202 | Oil & Gas Operator | Sep 2004 |
| 5 | Bay Oaks Resources LLC | Fort Smith, AR 72913-3129 | Gas Operator | Feb 2018 |
| 6 | Bayou Resources, Inc. | Houston, TX 77056 | Oil & Gas Operator | Jan 2015 |
| 7 | Bear Productions Inc | Kinta, OK 74552 | Oil & Gas Operator | Jan 2025 |
| 8 | Belport Oil, Inc. | Tulsa, OK 74119 | Oil & Gas Operator | Dec 2024 |
| 9 | BHP Petroleum (Americas) Inc | Houston, TX 77056 | Oil & Gas Operator | Mar 2015 |
| 10 | BHP Petroleum Company Inc | Houston, TX 77057 | Oil & Gas Operator | Jun 2016 |
| 11 | Big Bend Oil Co | Hominy, OK 74035 | Oil & Gas Operator | Sep 2024 |
| 12 | Blackjack Oil & Gas, Inc. | Hennessey, OK 73742 | Oil & Gas Operator | Mar 2025 |
| 13 | Blackwell Gas Company | | Gas Operator | Jun 1997 |
| 14 | Blue Water Resources LLC | Tulsa, OK 74136 | Oil & Gas Operator | Jan 2025 |
| 15 | Bluebonnet Oil Corporation | Oklahoma City, OK 73162-6249 | Oil & Gas Operator | Jan 2025 |
| 16 | Bluebonnet Oil LLC | Oklahoma City, OK 73162-6249 | Oil & Gas Operator | Jan 2025 |
| 17 | Bluemark Energy LLC | Tulsa, OK 74120 | Oil & Gas Operator | Dec 2024 |
| 18 | BP America Production Company | Denver, CO 80202 | Oil & Gas Operator | Dec 2024 |
| 19 | BP Products North America Inc | Chicago, IL 60606 | Gas Operator | Jan 2017 |
| 20 | Bravo Arkoma LLC | Tulsa, OK 74103-3100 | Oil & Gas Operator | Nov 2024 |
| 21 | Breitburn Operating LP | Houston, TX 77002 | Oil & Gas Operator | Mar 2025 |
| 22 | BRG Petroleum LLC | Tulsa, OK 74136 | Oil & Gas Operator | Jan 2025 |
| 23 | BRG Production Company | Tulsa, OK 74136-6338 | Oil & Gas Operator | Jan 2025 |
| 24 | Briar Oil & Gas - Oklahoma 1 LLC | Houston, TX 77027-9392 | Oil & Gas Operator | Jan 2025 |
| 25 | Bristol Resources Corporation | Tulsa, OK 74170 | Oil & Gas Operator | Feb 2022 |
| 26 | Brock Oil & Gas Corporation | Tulsa, OK 74103 | Oil & Gas Operator | Jun 2019 |
| 27 | Brooks Energy Company | Tulsa, OK 74114-3304 | Oil & Gas Operator | Jul 2008 |
| 28 | Brower Oil & Gas Co., Inc. | Graham, TX 76450 | Oil & Gas Operator | Mar 2025 |
| 29 | Brower, Robert C. | Fort Worth, TX 76116 | Oil & Gas Operator | Mar 2025 |
| 30 | Brown B J | Tulsa, OK 74133 | Gas Operator | Jan 2007 |
| 31 | Bso Inc | Cleveland, OK 74020 | Oil & Gas Operator | Jan 2025 |
| 32 | Buffco Production, Inc. | Longview, TX 75606 | Oil & Gas Operator | Mar 2025 |
| 33 | Bulldog Operating Company LLC | Shreveport, LA 71101-3680 | Oil & Gas Operator | Jun 2015 |
| 34 | Buray Energy International LLC | Evansville, IN 47711-5369 | Gas Operator | Jun 2013 |
| 35 | Buttonwood Petroleum Inc | Tulsa, OK 74136-4234 | Oil & Gas Operator | Jan 2014 |
| 36 | Buxton Fred M | Oklahoma City, OK 73116-9111 | Oil & Gas Operator | Feb 2007 |