| Company Name | Company Location | Company Type | Most Recent Production | |
|---|---|---|---|---|
| 1 | East Resources, Inc. | Sewickley, PA 15143 | Oil & Gas Operator | Dec 2021 |
| 2 | Eastern American Energy Corp | Oil & Gas Operator | Dec 2008 | |
| 3 | Energy Corporation Of America | Charleston, WV 25311 | Oil & Gas Operator | Dec 2022 |
| 4 | Enervest Operating LLC | Houston, TX 77002 | Oil & Gas Operator | Dec 2024 |
| 5 | Enervest Operating, L.L.C., A Limited Liability Company | Oil & Gas Operator | Dec 2019 | |
| 6 | Eqt Production Company | Pittsburg, PA 15222 | Oil & Gas Operator | Sep 2024 |
| 7 | Equitable Production Company | Charleston, WV 25302 | Oil & Gas Operator | Dec 2007 |
| 8 | Exco Resources (WV), Inc. | Oil & Gas Operator | Dec 2020 |