| Company Name | Company Location | Company Type | Most Recent Production | |
|---|---|---|---|---|
| 1 | H L Altier Service Co Inc | Canton, OH 44718-3752-3752 | Oil & Gas Operator | Dec 2013 |
| 2 | Hanna M A Co | Cleveland, OH 44114-1824-1824 | Oil & Gas Operator | Dec 1991 |
| 3 | Harrison Energy | Tippecanoe, OH 44699 | Oil & Gas Operator | Dec 2000 |
| 4 | Hocking Hills Energy And Well Service LLC | Logan, OH 43138 | Oil & Gas Operator | Dec 2023 |
| 5 | Hopco Resources Inc | Columbus, OH 43065 | Oil & Gas Operator | Dec 2023 |
| 6 | Hopewell Oil & Gas Development Company | Columbus, OH 43228 | Oil & Gas Operator | Dec 2019 |
| 7 | Houghton Investments LLC | Columbus, OH 43235 | Oil & Gas Operator | Dec 2023 |
| 8 | Huffman-Bowers Inc | New Lexington, OH 43764 | Oil & Gas Operator | Dec 2023 |