Oil & Gas Companies in Texas
| Company Name | Company Location | Company Type | Most Recent Production |
| 801 | Txo Production Corp. | Ganado, TX 77962 | Oil & Gas Operator | Aug 2022 |
| 802 | Txok Texas Energy Resources,L.P. | Dallas, TX 75251 | Oil & Gas Operator | Apr 2008 |
| 803 | Txon Partners, LLC | Houston, TX 77057 | Oil & Gas Operator | Jun 2017 |
| 804 | TXP, Incorporated | San Angelo, TX 76906 | Oil & Gas Operator | Dec 2025 |
| 805 | Txu Fuel Company | Dallas, TX 75201 | Oil & Gas Operator | May 2004 |
| 806 | Txu Gas Company | Dallas, TX 75201 | Oil & Gas Operator | Sep 2004 |
| 807 | Txu Lone Star Pipeline | Dallas, TX 75201 | Oil & Gas Operator | Oct 2003 |
| 808 | TXX Operating LLC | Shreveport, LA 71133 | Oil & Gas Operator | Dec 2025 |
| 809 | Ty-Tex Exploration, Inc. | Tyler, TX 75711 | Oil Operator | Dec 2000 |
| 810 | Tyco Operating Co. | Archer City, TX 76351 | Oil & Gas Operator | Dec 2025 |
| 811 | Tyl Oil | Canon City, CO 81212 | Gas Operator | May 1994 |
| 812 | Tyler Oil & Gas Inc. | Tyler, TX 75702 | Oil & Gas Operator | Sep 2004 |
| 813 | Tyner Texas Operating Company | Dallas, TX 75248 | Oil & Gas Operator | Dec 2025 |
Production numbers shown above are only for Texas and for the production period listed.