Oil & Gas Companies in McMullen County, TX
| Company Name | Company Location | Company Type | Most Recent Production |
|---|
| 1 | Garcia, A. H. | San Diego, TX 78384 | Oil & Gas Operator | May 2006 |
| 2 | GBF Operating LLC | Morrison, CO 80465 | Oil & Gas Operator | Oct 2025 |
| 3 | Geodominion Petroleum | Corpus Chrsti, TX 78403 | Oil & Gas Operator | May 2012 |
| 4 | Gierhart Exploration, Inc. | Corpus Chrsti, TX 78403 | Oil & Gas Operator | Apr 1994 |
| 5 | Gillring Oil Company | Fort Worth, TX 76102 | Oil & Gas Operator | May 1994 |
| 6 | Ginco Operating Co. | San Antonio, TX 78217 | Oil & Gas Operator | Oct 2025 |
| 7 | Goldking Prod. Co. | Houston, TX 77002 | Oil & Gas Operator | Apr 1998 |
| 8 | Goldston Oil Corporation | Houston, TX 77257 | Oil & Gas Operator | Oct 2025 |
| 9 | Gonzalez, Elia G. Mineral Trust | Laredo, TX 78041 | Oil & Gas Operator | May 2012 |
| 10 | Gruy Petroleum Management Co. | Irving, TX 75014 | Oil & Gas Operator | Nov 2014 |
| 11 | GTG Operating, LLC | Tyler, TX 75702 | Oil & Gas Operator | Oct 2025 |
| 12 | Gulfstar Properties, Inc. | San Antonio, TX 78229 | Oil & Gas Operator | Oct 2025 |
| 13 | Gulftex Energy II, LP | San Antonio, TX 78258 | Oil & Gas Operator | Jan 2013 |
| 14 | Gulftex Energy III, LP | San Antonio, TX 78257 | Oil & Gas Operator | Jul 2018 |
| 15 | Gulftex Energy, LLC | San Antonio, TX 78257 | Oil & Gas Operator | Oct 2025 |
Production numbers shown above are only for McMullen County, TX and for the production period listed.