| Company Name | Company Location | Company Type | Most Recent Production | |
|---|---|---|---|---|
| 1 | Hallwood Petroleum, Inc. | Midland, TX 79701 | Oil & Gas Operator | Dec 2023 |
| 2 | Hard Rock Exploration, Inc. | Oil & Gas Operator | Dec 2008 | |
| 3 | Hartman Oil And Gas Company | Oil Operator | Dec 1998 | |
| 4 | Hildreth, Roy G & Son Inc | Spencer, WV 25276 | Oil & Gas Operator | Dec 2021 |
| 5 | Hoselton, Earlie And Caroline | Ravenswood, WV 26164-8753 | Gas Operator | Dec 2021 |