| 1 | T And DS Lube Doctors LLC | Carlsbad, NM 88220 | Gas Operator | Dec 2025 |
| 2 | Tahoe Energy, Inc. | Midland, TX 79703 | Oil & Gas Operator | Jul 1996 |
| 3 | Tandem Energy Corporation | Houston, TX 77056 | Oil & Gas Operator | Feb 2026 |
| 4 | Tap Rock Operating, LLC | Denver, CO 80203 | Oil & Gas Operator | Feb 2026 |
| 5 | Tarco Energy, LC | Lubbock, TX 79423 | Oil & Gas Operator | Dec 2025 |
| 6 | Tascosa Energy Partners, L.L.C | Midland, TX 79701 | Oil & Gas Operator | Dec 2025 |
| 7 | Tbi Exploration Inc | Englewood, CO 801556525 | Oil & Gas Operator | Jun 2011 |
| 8 | Team Operating, L.L.C. | Pinehurst, TX 77362 | Oil & Gas Operator | Feb 2026 |
| 9 | Tempo Energy, Inc. | Midland, TX 79702 | Oil & Gas Operator | Feb 2026 |
| 10 | Texaco Exploration & Prod Inc | Houston, TX 77236 | Oil & Gas Operator | Dec 2025 |
| 11 | Texas Independent Exploration LP | Houston, TX 77024 | Oil & Gas Operator | Mar 2017 |
| 12 | Texas Reexploration Operating LC | Fredericksbrg, TX 78624 | Oil & Gas Operator | Feb 2026 |
| 13 | Texian Operating Company, LLC | Irving, TX 75063 | Oil & Gas Operator | Feb 2026 |
| 14 | Three Forks Resources, LLC | Wheat Ridge, CO 80033 | Oil & Gas Operator | Feb 2026 |
| 15 | Three Rivers Operating Co LLC | Austin, TX 78735 | Oil & Gas Operator | Mar 2017 |
| 16 | Three Span Oil & Gas, Inc. | Midland, TX 79710 | Oil & Gas Operator | Feb 2026 |
| 17 | Threshold Development Company | Fort Worth, TX 76109 | Oil & Gas Operator | Aug 2016 |
| 18 | Thunderbolt Petroleum, LLC | Midland, TX 79702 | Oil & Gas Operator | Sep 2013 |
| 19 | Tide West Oil Company | Tulsa, OK 74136 | Oil & Gas Operator | Mar 2021 |
| 20 | Tipton Oil & Gas Acquisitions, Inc. | Irving, TX 75038 | Oil & Gas Operator | Sep 2010 |
| 21 | Titan Resources I, Inc. | Midland, TX 79701 | Oil & Gas Operator | Jun 2000 |
| 22 | Titus Oil & Gas Production, LLC | Fort Worth, TX 76102 | Oil & Gas Operator | Sep 2022 |
| 23 | TMBR/Sharp Drilling, Inc. | Midland, TX 79703 | Oil & Gas Operator | Feb 2004 |
| 24 | Tom Boyd Drilling Co Inc | Roswell, NM 882021375 | Oil & Gas Operator | Jan 1996 |
| 25 | Tom Brown Inc | Denver, CO 80202 | Oil & Gas Operator | Dec 2004 |
| 26 | Tom R Cone | Hobbs, NM 88240 | Oil Operator | Oct 2009 |
| 27 | Tomsco Energy | Artesia, NM 88210 | Oil & Gas Operator | Mar 1996 |
| 28 | Topat Oil Corporation | Midland, TX 79701 | Oil & Gas Operator | Sep 2017 |
| 29 | Torch Energy Services, Inc. | Houston, TX 77010 | Oil & Gas Operator | Sep 2011 |
| 30 | Trek Operating, LLC | Tulsa, OK 741520098 | Oil & Gas Operator | Mar 2021 |
| 31 | Trilogy Operating, Inc. | Midland, TX 79708 | Oil & Gas Operator | Feb 2026 |
| 32 | Trinity River Energy, LLC | Houston, TX 77094 | Oil & Gas Operator | Aug 2015 |
| 33 | Trinity University & Closuit | Loco Hills, NM 88255 | Oil & Gas Operator | Dec 2002 |
| 34 | Tritex Resources, L.L.C. | Kilgore, TX 75663 | Oil & Gas Operator | Dec 2009 |
| 35 | TRP Operating LLC | Houston, TX 77024 | Oil & Gas Operator | Feb 2026 |