Oil & Gas Companies in Terrell County, TX
| Company Name | Company Location | Company Type | Most Recent Production |
| 1 | Marlin Energy Southwest GP, LLC | Lafayette, LA 70503 | Oil & Gas Operator | Dec 2025 |
| 2 | Marshall & Winston, Inc. | Midland, TX 79710 | Oil & Gas Operator | Oct 2025 |
| 3 | Matador Operating Company | Dallas, TX 75240 | Oil & Gas Operator | Jul 2003 |
| 4 | Maynard Oil Co. | Denver, CO 80202 | Oil & Gas Operator | Sep 2004 |
| 5 | McGuffin, Joe Jr. | Christoval, TX 76935 | Oil & Gas Operator | Dec 2025 |
| 6 | MLC Operating, LP | Houston, TX 77063 | Oil & Gas Operator | Dec 2025 |
| 7 | Mobil Oil Corporation | Houston, TX 77210 | Oil & Gas Operator | Dec 2007 |
| 8 | Mobil Producing TX. & N.M. Inc. | Spring, TX 77389 | Oil & Gas Operator | Dec 2025 |
Production numbers shown above are only for Terrell County, TX and for the production period listed.