| Company Name | Company Location | Company Type | Most Recent Production | |
|---|---|---|---|---|
| 1 | G-R-F Energy, Inc | Kenton, OH 43326 | Oil & Gas Operator | Dec 1994 |
| 2 | Geitgey Donald W Jr | N Canton, OH 44721 | Oil & Gas Operator | Dec 2024 |
| 3 | Gemak Exp Inc | Dayton, OH 45414 | Oil Operator | Dec 1998 |
| 4 | Geopetro Inc | Worthington, OH 43085 | Oil & Gas Operator | Dec 1994 |
| 5 | Geopetro LLC | Worthington, OH 43085-2316 | Oil & Gas Operator | Sep 2025 |
| 6 | Guardian Management Inc | Marion, OH 43302 | Oil & Gas Operator | Dec 1997 |