| Company Name | Company Location | Company Type | Most Recent Production | |
|---|---|---|---|---|
| 1 | Hall & Horning Serv Inc | Atwater, OH 44201-9375-9375 | Oil & Gas Operator | Dec 2009 |
| 2 | Harley Drilling & Producing LTD | Burbank, OH 44214 | Oil & Gas Operator | Dec 2024 |
| 3 | Harrison Energy | Tippecanoe, OH 44699 | Oil & Gas Operator | Dec 2000 |
| 4 | Hydrocarbon Resources LTD | Medina, OH 44256 | Oil & Gas Operator | Dec 2022 |