| 1 | Tag Operating Company, Inc. | Houston, TX 77092 | Oil & Gas Operator | Mar 2025 |
| 2 | TCF Energy, Inc. | Midland, TX 79704 | Oil & Gas Operator | Dec 2004 |
| 3 | Texaco E & P Inc | Houston, TX 77099 | Oil & Gas Operator | Mar 2025 |
| 4 | Texakoma E & P, LLC | Plano, TX 75024 | Oil & Gas Operator | Mar 2025 |
| 5 | Texakota, Inc. | Houston, TX 77098 | Oil & Gas Operator | Mar 2021 |
| 6 | Texas Meridian Res. Expl., Inc. | Houston, TX 77079 | Oil & Gas Operator | Jun 1998 |
| 7 | Texas Oil And Gas Operating, LLC | Friendswood, TX 77546 | Oil & Gas Operator | Mar 2025 |
| 8 | Texican Crude & Hydrocarbons LLC | Houston, TX 77002 | Oil Operator | Sep 2023 |
| 9 | Texron Operating, LLC | Bulverde, TX 78163 | Oil & Gas Operator | Mar 2025 |
| 10 | Tharp Operating Company | Houston, TX 77070 | Oil & Gas Operator | Nov 2014 |
| 11 | Three Forks Resources LLC | Wheat Ridge, CO 80033 | Oil & Gas Operator | Mar 2025 |
| 12 | Tradition Resources Oper, LLC | Houston, TX 77002 | Oil & Gas Operator | Jul 2017 |
| 13 | Transatlantic Petr (USA) Corp. | Dallas, TX 75206 | Oil & Gas Operator | Mar 2025 |
| 14 | Trek Resources, Inc. | Dallas, TX 75207 | Oil & Gas Operator | Mar 2025 |
| 15 | Tri-C Resources, Inc. | Houston, TX 77024 | Oil & Gas Operator | Aug 2009 |
| 16 | Tri-C Resources, LLC | Houston, TX 77024 | Oil & Gas Operator | Mar 2025 |
| 17 | Truth Resources LP | Houston, TX 77090 | Oil Operator | Sep 2021 |