| 1 | B & B Oil & Gas Prod Co | Dayton, PA 16222-5722 | Oil & Gas Operator | Dec 2019 |
| 2 | B F Energies LLC | West Newton, PA 15089-1357 | Gas Operator | Dec 2023 |
| 3 | Bannon Energy Inc | Houston, TX 77068 | Oil & Gas Operator | Jun 1998 |
| 4 | Baron Group Inc | Indianola, PA 15051-0563 | Oil & Gas Operator | Dec 2020 |
| 5 | Beck George N | Murrysville, PA 15668-9635 | Oil & Gas Operator | Dec 2016 |
| 6 | Belden & Blake Corporation | North Canton, OH 44720-0500-0500 | Oil & Gas Operator | Dec 2016 |
| 7 | Big Dog Energy LLC | Wexford, PA 15090-8314 | Gas Operator | Aug 2024 |
| 8 | Bittinger Drilling L A Bittinger Dba | Apollo, PA 15613-9720 | Oil & Gas Operator | Dec 2023 |
| 9 | BLX Inc | Edmond, OK 73013 | Oil & Gas Operator | Sep 2024 |
| 10 | BMW Energy Inc | Smicksburg, PA 16256-1631 | Gas Operator | Dec 2023 |
| 11 | Buckeye Energy Inc | Midland, TX 79702 | Oil & Gas Operator | Dec 2018 |
| 12 | Burgly Gas & Oil Co Inc | Apollo, PA 15613-0015 | Gas Operator | Dec 2022 |
| 13 | Burkland William S | Ligonier, PA 15658-0467 | Oil & Gas Operator | Dec 2010 |
| 14 | Burnett Oil Co Inc | Fort Worth, TX 76102 | Oil & Gas Operator | Nov 2024 |
| 15 | Burskey David M | Carrolltown, PA 15722-0480 | Oil & Gas Operator | Dec 2023 |