| Company Name | Company Location | Company Type | Most Recent Production | |
|---|---|---|---|---|
| 1 | Talos Ert LLC | Oil & Gas Operator | Jan 2025 | |
| 2 | Taylor-McIlhenny Oper. Co., Inc. | Lewisville, TX 75029 | Oil & Gas Operator | Jan 1996 |
| 3 | Telico Minerals, L.L.C. | Oil & Gas Operator | Oct 2019 | |
| 4 | Tesla Resources, Inc. | Oil & Gas Operator | Aug 1996 | |
| 5 | Texaco E & P Inc | Houston, TX 77099 | Oil & Gas Operator | Oct 2025 |
| 6 | Texaco Inc | Kingfisher, OK 73750 | Oil & Gas Operator | Dec 2017 |
| 7 | Texaco Producing Inc. | Rock Springs, WY 82901 | Oil & Gas Operator | Dec 2000 |
| 8 | Texas Gas Exploration Corp. | Oil & Gas Operator | Nov 1986 | |
| 9 | Texas Pacific Oil Company Inc. | Oil & Gas Operator | Dec 1980 | |
| 10 | Texas Petroleum Investment Company | Houston, TX 77057 | Oil & Gas Operator | Oct 2025 |
| 11 | The WM G Helis Company, L.L.C. | Oil & Gas Operator | Nov 2003 | |
| 12 | Transcontinental Oil Corp. | Oil & Gas Operator | Sep 1985 | |
| 13 | Traver Oil & Gas Corporation | Oil & Gas Operator | Sep 2000 | |
| 14 | Traver Oil Company | Oil & Gas Operator | Sep 2000 | |
| 15 | Traver-Patterson Petroleum Inc | Oil & Gas Operator | May 1990 |