| 1 | B & B Oil & Gas Prod Co | Dayton, PA 16222-5722 | Oil & Gas Operator | Dec 2019 |
| 2 | Baker Gas Inc | Worthington, PA 16262-0739 | Gas Operator | Sep 2024 |
| 3 | Bannon Energy Inc | Houston, TX 77068 | Oil & Gas Operator | Jun 1998 |
| 4 | Baron Crest Energy Co | Apollo, PA 15613-8912 | Oil & Gas Operator | Dec 2007 |
| 5 | Baron Group Inc | Indianola, PA 15051-0563 | Oil & Gas Operator | Dec 2020 |
| 6 | Belden & Blake Corporation | North Canton, OH 44720-0500-0500 | Oil & Gas Operator | Dec 2016 |
| 7 | Benedum Interests | Pittsburgh, PA 15222-1794 | Gas Operator | Dec 2003 |
| 8 | Big Dog Energy LLC | Wexford, PA 15090-8314 | Gas Operator | Aug 2024 |
| 9 | Bittinger Drilling L A Bittinger Dba | Apollo, PA 15613-9720 | Oil & Gas Operator | Dec 2023 |
| 10 | Blazer Energy Corp. | Alexandria, VA 22314 | Oil & Gas Operator | Dec 2014 |
| 11 | BLX Inc | Edmond, OK 73013 | Oil & Gas Operator | Sep 2024 |
| 12 | BMW Energy Inc | Smicksburg, PA 16256-1631 | Gas Operator | Dec 2023 |
| 13 | Boyd & Shriver Inc | Indiana, PA 15701-8944 | Oil & Gas Operator | Dec 2009 |
| 14 | Brawand H William | Wilcox, PA 15870-0373 | Oil & Gas Operator | Dec 2023 |
| 15 | Bright Well Oil & Gas Co | Armagh, PA 15920-0229 | Gas Operator | Dec 2023 |
| 16 | Buckeye Energy Inc | Midland, TX 79702 | Oil & Gas Operator | Dec 2018 |
| 17 | Burgly Gas & Oil Co Inc | Apollo, PA 15613-0015 | Gas Operator | Dec 2022 |
| 18 | Burskey David M | Carrolltown, PA 15722-0480 | Oil & Gas Operator | Dec 2023 |