| Company Name | Company Location | Company Type | Most Recent Production | |
|---|---|---|---|---|
| 1 | S & T SVC & Supply Inc | Pleasantville, PA 16341-2817 | Oil & Gas Operator | Dec 2025 |
| 2 | Seneca Resources Co LLC | Cranberry Township, PA 16066 | Oil & Gas Operator | Jun 2026 |
| 3 | Stiglitz Raymond J | Oil & Gas Operator | Dec 2013 | |
| 4 | Stone Ridge Energy LLC | Uniontown, PA 15401-6831 | Oil & Gas Operator | May 2026 |
| 5 | Stonehaven Energy MGT Co LLC | Oil & Gas Operator | Dec 2019 | |
| 6 | Swepi LP | Houston, TX 77079 | Oil & Gas Operator | Jul 2020 |
| 7 | Sylvan Energy, LLC | Pittsburgh, PA 15211 | Oil & Gas Operator | Sep 2026 |