Oil & Gas Companies in McMullen County, TX
| Company Name | Company Location | Company Type | Most Recent Production |
|---|
| 1 | J G Oil & Gas | Albany, TX 76430 | Oil & Gas Operator | Oct 2025 |
| 2 | J W Oil Co. | Cisco, TX 76437 | Oil & Gas Operator | Oct 2025 |
| 3 | J&J Oil | La Vernia, TX 78121 | Oil & Gas Operator | Oct 2025 |
| 4 | J-Bar Oil Company | Somerset, TX 78069 | Oil & Gas Operator | Nov 2011 |
| 5 | Jaco, Troy Inc. | Sherman, TX 75091 | Oil & Gas Operator | Oct 2025 |
| 6 | Jamex, Inc. | Lewisville, TX 75067 | Oil & Gas Operator | Oct 2025 |
| 7 | Janex Oil Co., Inc. | Dallas, TX 75219 | Oil & Gas Operator | Jun 2005 |
| 8 | Janssen, Wayne Allen | Runge, TX 78151 | Oil & Gas Operator | May 2010 |
| 9 | Javelin Energy Partners Management, LLC | Irving, TX 75038 | Oil & Gas Operator | Oct 2025 |
| 10 | Jay-Dee Operating Company | Corpus Chrsti, TX 78413 | Oil & Gas Operator | Aug 2000 |
| 11 | Jennings Exploration Company | Beeville, TX 78102 | Oil & Gas Operator | Feb 2024 |
| 12 | Joe Kestner, L.L.C. | Corpus Chrsti, TX 78410 | Oil & Gas Operator | Feb 2016 |
| 13 | Jones, Edwin M. Oil Co. | Fort Worth, TX 76102 | Oil & Gas Operator | Oct 2025 |
| 14 | Jura Energy Operating LLC | Houston, TX 77024 | Oil & Gas Operator | Oct 2025 |
Production numbers shown above are only for McMullen County, TX and for the production period listed.