Oil & Gas Companies in Maverick County, TX
| Company Name | Company Location | Company Type | Most Recent Production |
| 1 | H & M Resources LLC | Dallas, TX 75225 | Oil & Gas Operator | Oct 2025 |
| 2 | Hawn Brothers | Corpus Chrsti, TX 78401 | Oil & Gas Operator | Apr 2003 |
| 3 | HK Energy Operating, LLC | Houston, TX 77002 | Oil & Gas Operator | May 2023 |
| 4 | Hollimon Oil Corporation | Castroville, TX 78009 | Oil & Gas Operator | Nov 2016 |
| 5 | Hopkins Engineering, Inc. | Houston, TX 77046 | Oil & Gas Operator | Sep 1996 |
| 6 | Horizon Energy | Vergas, MN 56587 | Oil & Gas Operator | Oct 2025 |
| 7 | Houghton Oil & Gas, Inc. | Midland, TX 79701 | Oil & Gas Operator | Mar 2009 |
| 8 | Hughes, Dan A. Company | Beeville, TX 78104 | Oil & Gas Operator | May 2006 |
| 9 | Hughes, Dan A. Company, L.P. | Beeville, TX 78104 | Oil & Gas Operator | Oct 2025 |
| 10 | Hulsey Oil Company | Dallas, TX 75205 | Oil & Gas Operator | Aug 1999 |
Production numbers shown above are only for Maverick County, TX and for the production period listed.