| Company Name | Company Location | Company Type | Most Recent Production | |
|---|---|---|---|---|
| 1 | Eastern American Energy Corp | Oil & Gas Operator | Dec 2008 | |
| 2 | Eastern Gas Transmission And Storage, Inc | Oil & Gas Operator | Dec 2021 | |
| 3 | Emax Oil Company | Charlottesville, VA 22903-4973 | Oil & Gas Operator | Dec 2016 |
| 4 | Energy Corporation Of America | Charleston, WV 25311 | Oil & Gas Operator | Dec 2023 |
| 5 | Enervest Operating LLC | Houston, TX 77002 | Oil & Gas Operator | Oct 2025 |
| 6 | Eqt Production Company | Pittsburg, PA 15222 | Oil & Gas Operator | Jul 2025 |
| 7 | Equitable Production Company | Charleston, WV 25302 | Oil & Gas Operator | Dec 2007 |
| 8 | Exco Resources (WV), Inc. | Oil & Gas Operator | Dec 2020 |