| 1 | B & B Drilling Co. | Milano, TX 76556 | Oil & Gas Operator | Jul 2015 |
| 2 | Bagley, Roy | Magnolia, TX 77354 | Oil & Gas Operator | Feb 2026 |
| 3 | Bargo Energy Company | Houston, TX 77010 | Oil & Gas Operator | May 2001 |
| 4 | Bass Petroleum Inc | Austin, TX 78716 | Oil & Gas Operator | Feb 2026 |
| 5 | Baxter, Kelly H. | Austin, TX 78767 | Oil & Gas Operator | Mar 2008 |
| 6 | Bay Rock Operating Company | San Antonio, TX 78212 | Oil & Gas Operator | Feb 2026 |
| 7 | Baytex Energy USA, Inc. | Houston, TX 77084 | Oil & Gas Operator | Feb 2026 |
| 8 | BCL Operating, LLC | Houston, TX 77269 | Oil & Gas Operator | Feb 2026 |
| 9 | Beaver Oil Company Inc | New Matamoras, OH 45767 | Oil & Gas Operator | Dec 2020 |
| 10 | Belco Energy Corp. | Dallas, TX 75231 | Oil & Gas Operator | Mar 2015 |
| 11 | Belco Operating Corp. | Dallas, TX 75231 | Oil & Gas Operator | Aug 1998 |
| 12 | Bellwether Exploration Company | Houston, TX 77010 | Oil & Gas Operator | May 2001 |
| 13 | Benson Mineral Group, Inc. | Denver, CO 80202 | Oil & Gas Operator | Apr 2022 |
| 14 | Berenergy Corporation | Denver, CO 80217 | Oil & Gas Operator | Jan 2026 |
| 15 | Beta Oil Corporation | San Antonio, TX 78232 | Oil & Gas Operator | Feb 2026 |
| 16 | Big "6" Drilling Company | Houston, TX 77063 | Oil & Gas Operator | Mar 2019 |
| 17 | Bledsoe Petro Corporation | Dallas, TX 75201 | Oil & Gas Operator | Dec 2000 |
| 18 | Blessing Energy, Inc. | Giddings, TX 78942 | Oil & Gas Operator | Feb 2026 |
| 19 | Bluebonnet Land & Cattle Co. | Graham, TX 76450 | Oil & Gas Operator | Feb 2026 |
| 20 | Bommer Engineering Co. | San Antonio, TX 78260 | Oil & Gas Operator | Feb 2026 |
| 21 | Bowman, Fred Inc. | Dallas, TX 75225 | Oil & Gas Operator | Feb 2014 |
| 22 | BP America Production Company | Denver, CO 80202 | Oil & Gas Operator | Nov 2025 |
| 23 | Brammer Supply Inc | Gainesville, TX 76240 | Oil & Gas Operator | Nov 2014 |
| 24 | Brazos Resources, Inc. | College Sta, TX 77840 | Oil & Gas Operator | Dec 1998 |
| 25 | BRG Petroleum Corporation | Tulsa, OK 74136 | Oil & Gas Operator | Mar 2020 |
| 26 | Bridge Oil Company LP | Midland, TX 79702 | Oil & Gas Operator | May 1999 |
| 27 | Brittany Drilling Co. | Abilene, TX 79604 | Oil & Gas Operator | Dec 2000 |
| 28 | Browning Oil Company, Inc. | Dallas, TX 75251 | Oil & Gas Operator | Feb 2026 |
| 29 | Bull Operating, LLC | Houston, TX 77010 | Oil & Gas Operator | Feb 2026 |
| 30 | Burro Bluff Corporation | Houston, TX 77024 | Oil & Gas Operator | Feb 2026 |
| 31 | BXP Operating, LLC | Houston, TX 77079 | Oil & Gas Operator | Feb 2026 |
| 32 | Byng Energy Group Inc | Enid, OK 73703 | Oil & Gas Operator | Feb 2026 |