Oil & Gas Companies in Hardeman County, TX
| Company Name | Company Location | Company Type | Most Recent Production |
| 1 | H & S Production, Inc. | Dallas, TX 75252 | Oil & Gas Operator | Mar 2004 |
| 2 | H H Exploration, Inc. | Incline VLLG, NV 89451 | Gas Operator | Feb 2018 |
| 3 | Hadaway Consult And Engineer,LLC | Canadian, TX 79014 | Oil & Gas Operator | Oct 2025 |
| 4 | Harco Land, Inc. | Dallas, TX 75230 | Oil & Gas Operator | Aug 1996 |
| 5 | Harper, Wayne | Dallas, TX 75206 | Oil & Gas Operator | Mar 2008 |
| 6 | Holmes Exploration, LLC | Tulsa, OK 74136 | Oil & Gas Operator | Jun 2015 |
| 7 | Horizon Oil & Gas Co. | Dallas, TX 75221 | Oil & Gas Operator | Jan 2005 |
| 8 | Huber J M Corp | Edison, NJ 08837 | Oil & Gas Operator | Oct 2025 |
Production numbers shown above are only for Hardeman County, TX and for the production period listed.