| Company Name | Company Location | Company Type | Most Recent Production | |
|---|---|---|---|---|
| 1 | Geomet Operating Co., Inc. | Gas Operator | Dec 2013 | |
| 2 | Gilbert Exploration Company Inc | Charleston, WV 25301 | Oil & Gas Operator | Dec 2023 |
| 3 | Greylock Conventional, LLC | Charleston, WV 25311 | Oil & Gas Operator | Jul 2025 |
| 4 | Guyan Gas Producers, Inc. | Oceana, WV 24870 | Gas Operator | Dec 2018 |