| 1 | B & B SWD LLC | | Oil Operator | Feb 2024 |
| 2 | B & W Operating LLC | Oklahoma City, OK 73116 | Oil & Gas Operator | Feb 2024 |
| 3 | Barrett Resources Corporation | Denver, CO 80202 | Oil & Gas Operator | Sep 2004 |
| 4 | BC Operating, Inc. | Midland, TX 79710 | Oil & Gas Operator | May 2024 |
| 5 | Bear Productions Inc | Kinta, OK 74552-0142 | Oil & Gas Operator | Jan 2024 |
| 6 | Bevo Production Co. | Amarillo, TX 79101 | Oil & Gas Operator | Dec 2014 |
| 7 | BHP Petroleum (Americas) Inc | Houston, TX 77056 | Oil & Gas Operator | Mar 2015 |
| 8 | BHP Petroleum Company Inc | Houston, TX 77057 | Oil & Gas Operator | Jun 2016 |
| 9 | Black Aubrey C | Dallas, TX 75206 | Oil & Gas Operator | Nov 2002 |
| 10 | Blackbeard Operating East, LLC | | Oil & Gas Operator | Dec 2020 |
| 11 | Blue Water Resources LLC | | Oil & Gas Operator | Feb 2024 |
| 12 | Bluemark Energy LLC | Tulsa, OK 74135 | Oil & Gas Operator | Jan 2024 |
| 13 | Bluff LTD (The) Partnership | Woodward, OK 73801-3160 | Oil Operator | Dec 1999 |
| 14 | BP America Production Company | Denver, CO 80202 | Oil & Gas Operator | Jan 2024 |
| 15 | BP Products North America Inc | Houston, TX 77094 | Gas Operator | Jan 2017 |
| 16 | Bravo Arkoma LLC | | Oil & Gas Operator | Jan 2024 |
| 17 | Bravo Natural Resources, Inc | Oklahoma City, OK 73154 | Oil & Gas Operator | Jun 2009 |
| 18 | Brewer Carroll L | Edmond, OK 73003-0010 | Oil & Gas Operator | Jan 2024 |
| 19 | BRG Petroleum Corporation | Tulsa, OK 74136 | Oil & Gas Operator | Mar 2020 |
| 20 | BRG Petroleum LLC | Tulsa, OK 74136 | Oil & Gas Operator | Feb 2024 |
| 21 | BRG Production Company | Tulsa, OK 74136-6338 | Oil & Gas Operator | Feb 2024 |
| 22 | Briar Oil & Gas - Oklahoma 1 LLC | | Oil & Gas Operator | Feb 2024 |
| 23 | Brighton Energy LLC | Tulsa, OK 74170 | Oil & Gas Operator | Mar 2015 |
| 24 | Brock Oil & Gas Corporation | Tulsa, OK 74103 | Oil & Gas Operator | Jun 2019 |
| 25 | Brower Oil & Gas Co., Inc. | Graham, TX 76450 | Oil & Gas Operator | May 2024 |
| 26 | Bta Oil Producers, LLC | Midland, TX 79701 | Oil & Gas Operator | May 2024 |
| 27 | Buttonwood Petroleum Inc | Tulsa, OK 74136-4234 | Oil & Gas Operator | Jan 2014 |