| Company Name | Company Location | Company Type | Most Recent Production | |
|---|---|---|---|---|
| 1 | Ter Ex Inc | Butler, PA 16002-8638 | Gas Operator | Dec 1994 |
| 2 | Texas Keystone Inc | Oakmont, PA 15139-2072 | Oil & Gas Operator | Nov 2017 |
| 3 | Timberline Energy Inc | Franklin, PA 16323-0269 | Oil & Gas Operator | Dec 2023 |
| 4 | Turm Oil Inc | Butler, PA 16002-0471 | Oil & Gas Operator | Dec 2022 |
| 5 | TW Phillips Gas Supply Corp | Butler, PA 16001-4904 | Oil & Gas Operator | Dec 2011 |