| Company Name | Company Location | Company Type | Most Recent Production | |
|---|---|---|---|---|
| 1 | Santa Fe Minerals | Gas Operator | Dec 1993 | |
| 2 | Seneca Resources Co LLC | Cranberry Township, PA 16066 | Oil & Gas Operator | Mar 2026 |
| 3 | Seneca Western Minerals Corp. | Oil & Gas Operator | Dec 2009 | |
| 4 | Shell Western E&P Inc. | Houston, TX 77001 | Oil & Gas Operator | May 2011 |
| 5 | Signal Hill Petroleum Inc. | Oil & Gas Operator | Feb 2026 |