| Company Name | Company Location | Company Type | Most Recent Production | |
|---|---|---|---|---|
| 801 | Txu Gas Company | Dallas, TX 75201 | Oil & Gas Operator | Sep 2004 |
| 802 | Txu Lone Star Pipeline | Dallas, TX 75201 | Oil & Gas Operator | Oct 2003 |
| 803 | TXX Operating LLC | Shreveport, LA 71133 | Oil & Gas Operator | Apr 2026 |
| 804 | Ty-Tex Exploration, Inc. | Tyler, TX 75711 | Oil Operator | Dec 2000 |
| 805 | Tyco Operating Co. | Archer City, TX 76351 | Oil & Gas Operator | Apr 2026 |
| 806 | Tyl Oil | Canon City, CO 81212 | Gas Operator | May 1994 |
| 807 | Tyler Oil & Gas Inc. | Tyler, TX 75702 | Oil & Gas Operator | Sep 2004 |
| 808 | Tyner Texas Operating Company | Dallas, TX 75248 | Oil & Gas Operator | Apr 2026 |