| 1 | G W F Corporation | Columbus, OH 43215 | Oil & Gas Operator | Dec 2003 |
| 2 | G-R Contracting Inc | Lewisville, OH 43754 | Oil & Gas Operator | Dec 2023 |
| 3 | Gaia Exploration LLC | Cumberland, OH 43732-9760-9760 | Oil & Gas Operator | Dec 2022 |
| 4 | Gas Enterprise Company Inc | Wingett Run, OH 45789 | Oil & Gas Operator | Dec 2023 |
| 5 | Geitgey Donald W Jr | N Canton, OH 44721 | Oil & Gas Operator | Dec 2023 |
| 6 | Genesis Resources LLC | Parkersburg, WV 26104 | Oil & Gas Operator | Dec 2019 |
| 7 | Green Energy Inc | Wooster, OH 44691 | Oil & Gas Operator | Dec 2023 |
| 8 | Green Gas Co | Wooster, OH 44691 | Oil & Gas Operator | Dec 2020 |
| 9 | Greenland Petroleum Co | Belle Valley, OH 43717-178-178 | Oil & Gas Operator | Dec 1991 |
| 10 | Guernsey Petroleum Corporation | Atlanta, GA 30318 | Oil & Gas Operator | Nov 1997 |
| 11 | Gulfport Appalachia LLC | Oklahoma City, OK 73114-2640 | Oil & Gas Operator | Sep 2024 |
| 12 | Gulfport Energy Corporation | Oklahoma City, OK 73134-5003 | Oil & Gas Operator | Sep 2024 |