| 11201 | TNT Petroleum Company, Inc. | Corpus Chrsti, TX 78473 | Oil & Gas Operator | Feb 1996 |
| 11202 | Toc Energy Resources, LLC | Fort Worth, TX 76101 | Oil & Gas Operator | Jun 2026 |
| 11203 | Todd, J R Oil & Investments, Inc | Dallas, TX 75206 | Oil & Gas Operator | Jun 2002 |
| 11204 | Tog Operating, LLC | Fort Worth, TX 76102 | Oil & Gas Operator | Jun 2026 |
| 11205 | Toklan Oil And Gas Corporation | Tulsa, OK 74136 | Oil & Gas Operator | Mar 2026 |
| 11206 | Tola Production Company | Dallas, TX 75367 | Oil & Gas Operator | Jun 2026 |
| 11207 | Tollett Oil | Graham, TX 76450 | Oil Operator | Nov 2024 |
| 11208 | Tom Coble Oil & Gas LP | Amarillo, TX 79105 | Oil & Gas Operator | Jun 2026 |
| 11209 | Tom E. Johnson Exploration LLC | Midland, TX 79702 | Oil & Gas Operator | Dec 2019 |
| 11210 | Tom Operating And Minerals LLC | Andrews, TX 79714 | Gas Operator | Jun 2026 |
| 11211 | Tom-Tom Operating, LLC | Dallas, TX 75209 | Oil & Gas Operator | Jun 2026 |
| 11212 | Toma Oil & Gas, Inc. | Corpus Christ, TX 78411 | Oil & Gas Operator | Oct 1997 |
| 11213 | Tomar Petroleum Inc | Dallas, TX 75225 | Oil & Gas Operator | Mar 2001 |
| 11214 | Tomco Oil & Gas Inc. | Comanche, TX 76442 | Oil & Gas Operator | Jun 2026 |
| 11215 | Tomel Production, LLC | Dallas, TX 75360 | Oil & Gas Operator | Feb 2026 |
| 11216 | Tomlinson, John Oil Operator | Batson, TX 77519 | Oil & Gas Operator | Mar 2008 |
| 11217 | Tomlinson, Thomas K. Inc. | Port Lavaca, TX 77979 | Oil & Gas Operator | Jul 2003 |
| 11218 | Tompkins, Kevin D. | Kilgore, TX 75663 | Oil Operator | Jun 2026 |
| 11219 | Tomsha LLC | Bryson, TX 76427 | Oil Operator | Jun 2026 |
| 11220 | Toney, W.L. | Borger, TX 79007 | Oil & Gas Operator | Oct 2012 |
| 11221 | Tong Petrotech Inc. | Houston, TX 77079 | Oil & Gas Operator | Jun 2026 |
| 11222 | Tonk Creek Oil Company | Aspermont, TX 79502 | Oil & Gas Operator | Jun 2026 |
| 11223 | Tonto Petroleum Corporation | Post, TX 79356 | Oil & Gas Operator | Jan 2007 |
| 11224 | Toomey Oil Company Inc | Tulsa, OK 74120 | Oil & Gas Operator | Jan 2026 |
| 11225 | Top O'Texas Energy, L.P. | Pampa, TX 79066 | Oil & Gas Operator | Jun 2026 |
| 11226 | Top O'Texas Production Co. | Pampa, TX 79065 | Oil & Gas Operator | May 2024 |
| 11227 | Top O'Texas Production, Inc. | Odessa, TX 79764 | Oil & Gas Operator | Feb 1997 |
| 11228 | Top Op, L.L.C. | Houston, TX 77077 | Oil & Gas Operator | May 2020 |
| 11229 | Topat Oil Corporation | Midland, TX 79701 | Oil & Gas Operator | Sep 2017 |
| 11230 | Topaz Oil Company | Diboll, TX 75941 | Oil & Gas Operator | Apr 1994 |
| 11231 | Topper Oil Company | Borger, TX 79007 | Oil & Gas Operator | Jun 2026 |
| 11232 | Tor Energy, LLC | Temple, TX 76501 | Oil & Gas Operator | Jun 2026 |
| 11233 | Torch Energy Services, Inc. | Houston, TX 77010 | Oil & Gas Operator | Sep 2011 |
| 11234 | Torch Oil & Gas Company | Houston, TX 77010 | Oil & Gas Operator | Aug 1997 |
| 11235 | Torch Operating Company | Houston, TX 77010 | Oil & Gas Operator | Mar 2015 |
| 11236 | Torch Operating LLC | Fort Worth, TX 76135 | Oil & Gas Operator | Oct 2020 |
| 11237 | Toreador Exploration & Prod Inc | Dallas, TX 75240 | Oil & Gas Operator | Feb 2008 |
| 11238 | Torrent Oil LLC | Houston, TX 77002 | Oil & Gas Operator | Jun 2026 |
| 11239 | Tortuga Operating Company | Houston, TX 77055 | Oil & Gas Operator | Jun 2026 |
| 11240 | Tot Richards Family LP | Abilene, TX 79601 | Oil & Gas Operator | Jun 2026 |
| 11241 | Total E&P USA, Inc. | Houston, TX 77210 | Oil & Gas Operator | May 2025 |
| 11242 | Total Minatome Corporation | Houston, TX 77210 | Oil & Gas Operator | Dec 1998 |
| 11243 | Totalfinaelf E&P USA Inc | Houston, TX 77024 | Oil & Gas Operator | Jul 2007 |
| 11244 | Touchstone Resources USA, Inc. | Houston, TX 77002 | Oil & Gas Operator | Oct 2006 |
| 11245 | Tower Resources Inc | Conroe, TX 77304 | Oil & Gas Operator | Jun 2026 |
| 11246 | Townes, Don | Clarksville, TX 75426 | Oil & Gas Operator | Jun 2026 |
| 11247 | Townsend Company | Abilene, TX 79608 | Oil & Gas Operator | Dec 2021 |
| 11248 | Townsend, R. F. Trustee | Dallas, TX 75201 | Oil & Gas Operator | Dec 1994 |
| 11249 | TPC Exploration, LLC | May, TX 76857 | Oil & Gas Operator | Jun 2026 |
| 11250 | Tpet Management Inc. | Dallas, TX 75204 | Oil & Gas Operator | Dec 1997 |
| 11251 | Tpet, Inc. | Dallas, TX 75204 | Oil & Gas Operator | Mar 2008 |
| 11252 | TR Offshore, LLC | Corpus Christ, TX 78413 | Oil & Gas Operator | Jun 2026 |
| 11253 | TR Operating LLC | Graham, TX 76450 | Oil Operator | Mar 2026 |
| 11254 | Trace Energy Management Inc | Weatherford, TX 76086 | Oil & Gas Operator | Jun 2026 |
| 11255 | Trace Operating, LLC | Fort Worth, TX 76116 | Oil & Gas Operator | Jun 2026 |
| 11256 | Tracer Energy, Inc. | Graham, TX 76450 | Oil & Gas Operator | Nov 1998 |
| 11257 | Tracer Operating, Inc. | Graham, TX 76450 | Oil & Gas Operator | Jun 2026 |
| 11258 | Tracker Mineral | Clyde, TX 79510 | Oil & Gas Operator | Jun 2026 |
| 11259 | Tracker Oil & Gas, Inc. | Bastrop, TX 78602 | Oil & Gas Operator | Jun 2026 |
| 11260 | Tracker Resource Dev III, LLC | Englewood, CO 80112 | Oil & Gas Operator | Jul 2021 |
| 11261 | Trackstar Energies LLC | Colorado Springs, CO 80919-3233 | Oil Operator | Mar 2023 |
| 11262 | Tracy Co. | Rockdale, TX 76567 | Oil & Gas Operator | Mar 2022 |
| 11263 | Tracy Operating Co., LLC | Rockdale, TX 76567 | Oil & Gas Operator | Jun 2026 |
| 11264 | Tracy Production | Lindale, TX 75771 | Oil & Gas Operator | Jun 2026 |
| 11265 | Tradestar Energy, Inc. | Hot Springs, AR 71913 | Oil Operator | Feb 2021 |
| 11266 | Tradition Resources LLC | Houston, TX 77002 | Oil & Gas Operator | Jan 2014 |
| 11267 | Tradition Resources Oper, LLC | Houston, TX 77002 | Oil & Gas Operator | Jul 2017 |
| 11268 | Trail Mountain, Inc. | Artesia, NM 88210 | Oil & Gas Operator | Jan 2016 |
| 11269 | Trail Ridge Energy Partners, LLC | Grapevine, TX 76051 | Oil & Gas Operator | Mar 2026 |
| 11270 | Trail Ridge Energy PRTNS II LLC | Grapevine, TX 76051 | Oil & Gas Operator | Jun 2017 |
| 11271 | Trailblazer Energy LLC | Plano, TX 75075 | Oil & Gas Operator | Mar 2026 |
| 11272 | Trailblazer Energy Resources, LLC | Tulsa, OK 74136 | Oil & Gas Operator | Jun 2026 |
| 11273 | Trailblazer Oil & Gas LLC | Goliad, TX 77963 | Oil & Gas Operator | Jun 2026 |
| 11274 | Trailhead Exploration, LLC | Fort Worth, TX 76102 | Oil & Gas Operator | Mar 2026 |
| 11275 | Trans Terra Corp., International | Amarillo, TX 79159 | Oil & Gas Operator | Feb 2009 |
| 11276 | Trans Texas Minerals Company | Austin, TX 78714 | Oil & Gas Operator | Aug 1999 |
| 11277 | Trans-Pecos Resources, Inc. | Houston, TX 77056 | Oil & Gas Operator | Jun 2026 |
| 11278 | Trans-Tex Operating LLC | Dallas, TX 75367 | Oil & Gas Operator | Jun 2026 |
| 11279 | Trans-Texas Energy Group LLC | Mineral Wells, TX 76068 | Oil & Gas Operator | Jul 2015 |
| 11280 | Transamerica Energy Corp. | Atlanta, GA 30356 | Oil & Gas Operator | Jun 2026 |
| 11281 | Transamerican Natural Gas Corp. | Houston, TX 77032 | Oil & Gas Operator | Aug 2000 |
| 11282 | Transatlantic Petr (USA) Corp. | Dallas, TX 75206 | Oil & Gas Operator | Jun 2026 |
| 11283 | Transcontinental Minerals Corp. | The Woodlands, TX 77380 | Oil & Gas Operator | Dec 2008 |
| 11284 | Transcontinental Shale L.L.C. | Austin, TX 78717 | Oil & Gas Operator | Feb 2016 |
| 11285 | Transfuel Resources Co | Houston, TX 77215 | Oil & Gas Operator | Aug 2013 |
| 11286 | Transoil, Inc. | Oklahoma City, OK 73129 | Oil & Gas Operator | Jun 2026 |
| 11287 | Transpacific Energy, LLC | Katy, TX 77450 | Oil & Gas Operator | Jun 2026 |
| 11288 | Transpetco I | Shreveport, LA 71101 | Oil & Gas Operator | May 2009 |
| 11289 | Transtexas Gas Corporation | Houston, TX 77265 | Oil & Gas Operator | Aug 2005 |
| 11290 | Trap Rock Oil Company | Cambridge, MA 02138 | Oil & Gas Operator | Nov 2005 |
| 11291 | Trap Rock Oil, LTD. | Houston, TX 77005 | Oil & Gas Operator | Jun 2026 |
| 11292 | Traton Operating Company | Kingwood, TX 77339 | Oil & Gas Operator | Mar 2019 |
| 11293 | Travelers Oil Company | Amarillo, TX 79102 | Oil & Gas Operator | Jun 2026 |
| 11294 | Travers Resources, Inc. | Houston, TX 77056 | Oil & Gas Operator | Jun 2026 |
| 11295 | Travis Operating, LLC | Kingwood, TX 77345 | Oil & Gas Operator | Jun 2026 |
| 11296 | Travis, J. J., Trustee | Rockport, TX 78382 | Oil & Gas Operator | Dec 1996 |
| 11297 | Treadaway Oil Co. | Balmorhea, TX 79718 | Oil & Gas Operator | Jun 2026 |
| 11298 | Treadstone Energy Partners, LLC | Houston, TX 77070 | Oil & Gas Operator | Jun 2016 |
| 11299 | Treadstone Energy PRTNR Op, LLC | Katy, TX 77494 | Oil & Gas Operator | Jun 2026 |
| 11300 | Treco Oil Company | Albany, TX 76430 | Oil & Gas Operator | Jun 2026 |