| Company Name | Company Location | Company Type | Most Recent Production | |
|---|---|---|---|---|
| 1 | Hallwood Petroleum, LLC | Dallas, TX 75219 | Oil & Gas Operator | Jan 2010 |
| 2 | Hanna Oil And Gas Company | Fort Smith, AR 72901 | Oil & Gas Operator | Aug 2025 |
| 3 | Hickman, Johnny | Oil & Gas Operator | Oct 2011 | |
| 4 | Hogback Exploration Inc | Fort Smith, AR 72916 | Oil & Gas Operator | Sep 2025 |
| 5 | Hughes Eastern Corporation | Ridgeland, MS 39157 | Oil & Gas Operator | Sep 2025 |
| 6 | Hunt H L | Dallas, TX 75202-2785 | Oil & Gas Operator | Jan 2025 |