Oil & Gas Companies in Mercer County, PA
| Company Name | Company Location | Company Type | Most Recent Production |
|---|
| 1 | Empire Exploration Inc | Wichita, KS 67202 | Oil & Gas Operator | Jul 1997 |
| 2 | Energy Resources Of Amer Inc | Columbiana, OH 44408 | Oil & Gas Operator | Dec 2021 |
| 3 | Enervest Opr LLC | Charleston, WV 25301-1782 | Oil & Gas Operator | Dec 2019 |
| 4 | Eqt Chap, LLC | Canonsburg, PA 15317-1000 | Oil & Gas Operator | Feb 2026 |
| 5 | Everflow Eastern Inc | Canfield, OH 44406-0629 | Oil & Gas Operator | Dec 2025 |
| 6 | Exco Resources (Pa), LLC | Montoursville, PA 17754-2235 | Oil & Gas Operator | Feb 2026 |
| 7 | Exco Resources Pa Inc | Warrendale, PA 15086-6501 | Oil & Gas Operator | Dec 2011 |
| 8 | Exploration Energy Inc | Cortland, OH 44410 | Oil & Gas Operator | Dec 2009 |
Production numbers shown above are only for Mercer County, PA and for the production period listed.