| 1 | East Union Resources, LLC | Zanesville, OH 43701-5137 | Oil & Gas Operator | Dec 2025 |
| 2 | Eastern Amer Energy Corp | Charleston, WV 25304 | Oil & Gas Operator | Dec 2006 |
| 3 | Eastland Energy Group Inc | Byesville, OH 43723 | Oil & Gas Operator | Dec 2025 |
| 4 | Eclipse Resources-Ohio LLC | Morgantown, WV 26508 | Oil & Gas Operator | Dec 2020 |
| 5 | Eco Power Crypto LLC | Katy, TX 77494 | Oil & Gas Operator | Mar 2026 |
| 6 | Eco Production LLC | Wooster, OH 44691-4683 | Oil & Gas Operator | Dec 2025 |
| 7 | Edco Drilling & Producing | MT Gilead, OH 43338 | Oil & Gas Operator | Dec 2006 |
| 8 | Ellen P Sharp LLC | Zanesville, OH 43701 | Oil & Gas Operator | Dec 2025 |
| 9 | Elsaan Energy LLC | Walhonding, OH 43843 | Oil & Gas Operator | Dec 2023 |
| 10 | Enczi Frank | Junction City, OH 43748 | Oil & Gas Operator | Dec 2016 |
| 11 | Energy Contractors, Inc. | Canal Wincheste, OH 43110 | Oil & Gas Operator | Dec 2019 |
| 12 | Energy Distributors Inc | Zanesville, OH 43701 | Oil & Gas Operator | Dec 1987 |
| 13 | Enervest Operating LLC | Houston, TX 77002 | Oil & Gas Operator | Jun 2026 |
| 14 | Eninun Inc | Dayton, OH 45415 | Oil & Gas Operator | Dec 1984 |
| 15 | Enterprise Energy Corp | Cambridge, OH 43725 | Oil & Gas Operator | Dec 1985 |
| 16 | Envirogas Inc | Hamburg, NY 14075 | Oil & Gas Operator | Dec 1992 |
| 17 | EOG Resources Inc | Midland, TX 79702 | Oil & Gas Operator | Jun 2026 |
| 18 | Equity Oil & Gas Funds Inc | Orlando, FL 32837-6103 | Oil & Gas Operator | Dec 2025 |
| 19 | Eric Petroleum Corp | Austintown, OH 44515-1053 | Oil & Gas Operator | Dec 2025 |
| 20 | Everflow Eastern Partners LP | Canfield, OH 44406 | Oil & Gas Operator | Dec 2025 |
| 21 | Exco - North Coast Energy Inc | Kittanning, PA 16201 | Oil & Gas Operator | Dec 2018 |