| 1 | Ballard Exploration Company,Inc. | Houston, TX 77002 | Oil & Gas Operator | Mar 2025 |
| 2 | Bargo Energy Company | Houston, TX 77010 | Oil & Gas Operator | May 2001 |
| 3 | Basa Resources, Inc. | Dallas, TX 75254 | Oil & Gas Operator | Mar 2025 |
| 4 | BBX Operating, L.L.C. | Austin, TX 78738 | Oil & Gas Operator | Mar 2025 |
| 5 | Bechtel Energy Resources Corp. | Houston, TX 77210 | Oil & Gas Operator | Jun 1996 |
| 6 | Big Run Production Company | Kilgore, TX 75663 | Oil & Gas Operator | Mar 2025 |
| 7 | Block "T" Petroleum, Inc. | Tyler, TX 75707 | Oil & Gas Operator | Mar 2025 |
| 8 | Block T Operating, LLC | Dallas, TX 75201 | Oil & Gas Operator | Nov 2024 |
| 9 | Blue Ridge Group, Inc. | Bowling Green, KY 42101 | Oil & Gas Operator | Dec 2021 |
| 10 | Booher Engineering, Inc. | Tyler, TX 75711 | Oil & Gas Operator | Mar 2025 |
| 11 | BP America Production Company | Denver, CO 80202 | Oil & Gas Operator | Dec 2024 |
| 12 | BP Products North America Inc | Chicago, IL 60606 | Gas Operator | Jan 2017 |
| 13 | BPX Operating Company | Denver, CO 80202 | Oil & Gas Operator | Mar 2025 |
| 14 | BRG Lone Star LTD. | Tulsa, OK 74136 | Oil & Gas Operator | Mar 2025 |
| 15 | BRG Petroleum Corporation | Tulsa, OK 74136 | Oil & Gas Operator | Mar 2020 |
| 16 | Bse Production Co. | Victoria, TX 77903 | Oil & Gas Operator | Mar 2025 |
| 17 | Burlington Resources Oil And Gas Co. | Houston, TX 77210 | Oil & Gas Operator | Mar 2023 |