| 1 | B & O Drilling Inc | Ada, OK 74820-8065 | Oil & Gas Operator | Sep 2014 |
| 2 | Bear Productions Inc | Kinta, OK 74552 | Oil & Gas Operator | Apr 2025 |
| 3 | Beta Operating Company, LLC | Houston, TX 77210 | Oil & Gas Operator | Apr 2020 |
| 4 | BHP Petroleum (Americas) Inc | Houston, TX 77056 | Oil & Gas Operator | Mar 2015 |
| 5 | Billy Jack Sharber Operating LLC | Seminole, OK 74868 | Oil & Gas Operator | Apr 2025 |
| 6 | Blue Dolphin Production LLC | Oklahoma City, OK 73142 | Oil & Gas Operator | May 2025 |
| 7 | Blue Star Energy, Inc. | Shawnee, OK 74802 | Oil & Gas Operator | Jul 2025 |
| 8 | Blue Water Resources LLC | Tulsa, OK 74136 | Oil & Gas Operator | Apr 2025 |
| 9 | Bluemark Energy, LLC | Tulsa, OK 74135 | Oil & Gas Operator | Apr 2025 |
| 10 | BP America Production Company | Denver, CO 80202 | Oil & Gas Operator | Apr 2025 |
| 11 | Brand Oil & Gas Inc | Oklahoma City, OK 73165-8911 | Oil & Gas Operator | May 2013 |
| 12 | BRG Petroleum LLC | Tulsa, OK 74136 | Oil & Gas Operator | May 2025 |
| 13 | Briar Oil & Gas - Oklahoma 1 LLC | Houston, TX 77027-9392 | Oil & Gas Operator | Apr 2025 |
| 14 | Bricar Inc | Oklahoma City, OK 73108 | Oil & Gas Operator | Nov 1998 |
| 15 | Brower Oil & Gas Co., Inc. | Graham, TX 76450 | Oil & Gas Operator | Jul 2025 |
| 16 | Brower, Robert C. | Fort Worth, TX 76116 | Oil & Gas Operator | Jul 2025 |
| 17 | Brown B J | Tulsa, OK 74133 | Gas Operator | Jan 2007 |
| 18 | Bulldog Operating Company LLC | Shreveport, LA 71101-3680 | Oil & Gas Operator | Jun 2015 |
| 19 | Buttonwood Petroleum Inc | Tulsa, OK 74136-4234 | Oil & Gas Operator | Jan 2014 |