| Company Name | Company Location | Company Type | Most Recent Production | |
|---|---|---|---|---|
| 1 | Gaia Exploration LLC | Cumberland, OH 43732-9760 | Oil & Gas Operator | Dec 2023 |
| 2 | Geopetro LLC | Worthington, OH 43085-2316 | Oil & Gas Operator | Sep 2025 |
| 3 | Gingerich Mike | McConnelsville, OH 43756 | Oil & Gas Operator | Dec 2010 |
| 4 | Great Plains Exploration LLC | Mentor, OH 44060 | Oil & Gas Operator | Dec 2016 |
| 5 | Greenland Petroleum Co | Belle Valley, OH 43717 | Oil & Gas Operator | Dec 1991 |