Oil & Gas Companies in Erie County, PA
| Company Name | Company Location | Company Type | Most Recent Production |
| 1 | McCabe & Co | Albion, PA 16401-8013 | Oil & Gas Operator | Dec 1994 |
| 2 | McCluskey J Sterling | New York, NY 10128-1008 | Gas Operator | Dec 1989 |
| 3 | McCool John E | Youngsville, PA 16371 | Oil & Gas Operator | Aug 2025 |
| 4 | Medina Res Dev Co LLC | Cambridge Springs, PA 16403-3447 | Oil & Gas Operator | Sep 2025 |
| 5 | Meridian Exploration Corp. | Pittsburgh, PA 15222 | Oil & Gas Operator | Dec 2021 |
| 6 | Meridian Oil & Gas Enterprises Inc | Blairsville, PA 15717-0337 | Oil & Gas Operator | Dec 2003 |
| 7 | Mervin Troyer | Union City, PA 16438-8510 | Gas Operator | Dec 2008 |
| 8 | Mid Amer Natural Resources Inc | Erie, PA 16505-4760 | Gas Operator | Dec 1994 |
| 9 | Mitch Well Energy Inc | Waterford, PA 16441-8143 | Oil & Gas Operator | Dec 2012 |
| 10 | Mutual Oil & Gas Co | Akron, OH 44311 | Oil & Gas Operator | Dec 2000 |
Production numbers shown above are only for Erie County, PA and for the production period listed.