| Company Name | Company Location | Company Type | Most Recent Production | |
|---|---|---|---|---|
| 1 | Mark Resources Corp | Pittsburgh, PA 15276 | Oil & Gas Operator | Dec 1993 |
| 2 | Mitchell Energy Corp | Houston, TX 77002 | Oil & Gas Operator | Aug 2013 |
| 3 | Murphy Oil Company Inc | Lancaster, OH 43130 | Oil & Gas Operator | Dec 2024 |
| 4 | Myers Drilling Company | Barboursville, WV 25504 | Oil & Gas Operator | Dec 2024 |