| Company Name | Company Location | Company Type | Most Recent Production | |
|---|---|---|---|---|
| 1 | Earley Donald E | Utica, OH 43080-0386-0386 | Oil Operator | Dec 2019 |
| 2 | Eclipse Resources-Ohio LLC | Morgantown, WV 26508 | Oil & Gas Operator | Dec 2020 |
| 3 | Edco Drilling & Producing | MT Gilead, OH 43338 | Oil & Gas Operator | Dec 2006 |
| 4 | Elkhead Gas & Oil Co | Newark, OH 43055 | Oil & Gas Operator | Dec 2024 |
| 5 | Enervest Operating LLC | Houston, TX 77002 | Oil & Gas Operator | Apr 2025 |
| 6 | Equity Oil & Gas Funds Inc | Orlando, FL 32837-6103-6103 | Oil & Gas Operator | Dec 2024 |
| 7 | Euroamerican Pet Corp | Columbus, OH 43229 | Gas Operator | Dec 1991 |
| 8 | Exco - North Coast Energy Inc | Kittanning, PA 16201 | Oil & Gas Operator | Dec 2018 |
| 9 | Explore Energy Corp. | Westerville, OH 43086 | Oil & Gas Operator | Dec 2016 |