| 1 | East Union Resources, LLC | Zanesville, OH 43701-5137 | Oil & Gas Operator | Dec 2024 |
| 2 | Eastern Amer Energy Corp | Charleston, WV 25304 | Oil & Gas Operator | Dec 2006 |
| 3 | Eastern States Oil & Gas, Inc. | Ravenna, OH 44266 | Oil & Gas Operator | Dec 2020 |
| 4 | Eclipse Resources I LP | Spring, TX 77389 | Oil & Gas Operator | Dec 2021 |
| 5 | Eclipse Resources-Ohio LLC | Morgantown, WV 26508 | Oil & Gas Operator | Dec 2020 |
| 6 | Elephant Exploration Inc. | Hartville, OH 44632 | Oil & Gas Operator | Dec 2024 |
| 7 | Em Energy Ohio LLC | Canonsburg, PA 15317 | Oil & Gas Operator | Sep 2019 |
| 8 | Energy Contractors, Inc. | Canal Wincheste, OH 43110 | Oil & Gas Operator | Dec 2019 |
| 9 | Equinor USA Onshore Properties Inc. | Houston, TX 77042 | Oil & Gas Operator | Mar 2024 |
| 10 | Equitable Production Company | Charleston, WV 25302 | Oil & Gas Operator | Dec 2007 |
| 11 | Equity Oil & Gas Funds Inc | Orlando, FL 32837-6103 | Oil & Gas Operator | Dec 2024 |
| 12 | Expand Oper LLC | Morgantown, WV 26508 | Oil & Gas Operator | Nov 2025 |