| 1 | B & N Trucking | Quitman, TX 75783 | Oil & Gas Operator | May 1996 |
| 2 | Banner Oil & Gas LLC | Oklahoma City, OK 73159 | Oil & Gas Operator | Sep 2024 |
| 3 | Barrow-Shaver Resources Co. | Tyler, TX 75703 | Oil & Gas Operator | Dec 2024 |
| 4 | Basa Resources Inc | Dallas, TX 75254 | Oil & Gas Operator | Dec 2024 |
| 5 | Baxter, Kelly H. Oil And Gas Co. | Austin, TX 78767 | Oil & Gas Operator | Nov 2010 |
| 6 | Bevo Production Co. | Amarillo, TX 79101 | Oil & Gas Operator | Dec 2014 |
| 7 | Big Run Production Company | Tyler, TX 75701 | Oil & Gas Operator | Dec 2024 |
| 8 | Bitz, M. J. Company | Fort Worth, TX 76116 | Oil & Gas Operator | Aug 2003 |
| 9 | Black Diamond Operating Co., LLC | Kilgore, TX 75662 | Oil & Gas Operator | Sep 2009 |
| 10 | Blackwell Exp & Development, LLC | Dallas, TX 75252 | Oil & Gas Operator | Nov 2023 |
| 11 | Blazer Resources, Inc. | Leesburg, TX 75451 | Oil & Gas Operator | Dec 2024 |
| 12 | Block "T" Petroleum, Inc. | Tyler, TX 75707 | Oil & Gas Operator | Dec 2024 |
| 13 | Bluestone Natural Resources, LLC | Tulsa, OK 74114 | Oil & Gas Operator | Jan 2015 |
| 14 | Bluestone Production Company LP | Tulsa, OK 74105 | Oil & Gas Operator | Jun 2007 |
| 15 | BP America Production Company | Denver, CO 80202 | Oil & Gas Operator | Oct 2024 |
| 16 | Brammer Engineering, Inc. | Shreveport, LA 71101 | Oil & Gas Operator | Dec 2024 |
| 17 | Brammer Petroleum, Inc. | Gainesville, TX 76241 | Oil & Gas Operator | Dec 2024 |
| 18 | Brandon Energy, Inc. | Bullard, TX 75757 | Oil & Gas Operator | Nov 2007 |
| 19 | Brazos Petroleum, Inc. | Graham, TX 76450 | Oil & Gas Operator | Dec 2024 |
| 20 | BRG Petroleum Corporation | Tulsa, OK 74136 | Oil & Gas Operator | Mar 2020 |
| 21 | Brian Energy | Kilgore, TX 75663 | Oil & Gas Operator | May 2013 |
| 22 | Brian Energy, LLC | Kilgore, TX 75663 | Oil & Gas Operator | Feb 2020 |
| 23 | Bristol Resources Corporation | Tulsa, OK 74170 | Oil & Gas Operator | Feb 2022 |
| 24 | Brooks, E. B., Jr. | Dallas, TX 75206 | Oil & Gas Operator | May 2018 |
| 25 | Brothers Oil & Equipment, Inc. | Kilgore, TX 75663 | Oil & Gas Operator | Dec 2024 |
| 26 | Brown, C. L. Inc. | Corsicana, TX 75110 | Oil & Gas Operator | Dec 1999 |
| 27 | Buccaneer Operating LLC | Kilgore, TX 75663 | Oil & Gas Operator | Dec 2024 |
| 28 | Buffco Production, Inc. | Longview, TX 75606 | Oil & Gas Operator | Dec 2024 |
| 29 | Buttram Energies Inc | Oklahoma City, OK 73112-7235 | Oil & Gas Operator | Nov 2021 |