| 30201 | Trinity Operating & Prod., Inc. | Midland, TX 79702 | Oil & Gas Operator | Mar 2008 |
| 30202 | Trinity Operating (Usg), LLC | Houston, TX 77002 | Oil & Gas Operator | May 2025 |
| 30203 | Trinity Resources, Inc. | Houston, TX 77277 | Oil & Gas Operator | May 2020 |
| 30204 | Trinity River Energy Oper, LLC | Houston, TX 77008 | Oil & Gas Operator | May 2018 |
| 30205 | Trinity River Energy, LLC | Houston, TX 77094 | Oil & Gas Operator | Aug 2015 |
| 30206 | Trinity River Operating Company | Oklahoma City, OK 73147 | Oil & Gas Operator | May 2025 |
| 30207 | Trinity University & Closuit | Loco Hills, NM 88255 | Oil & Gas Operator | Dec 2002 |
| 30208 | Trio Consulting & Management,LLC | Wichita Falls, TX 76307 | Oil & Gas Operator | May 2025 |
| 30209 | Trio Consulting & MGMT LLC | Wichita Falls, TX 76301 | Oil Operator | Feb 2025 |
| 30210 | Trio Oil And Gas Company | Salem, WV 26426 | Oil & Gas Operator | Nov 2021 |
| 30211 | Trio Oil Co | Hobbs, NM 88240 | Oil & Gas Operator | Feb 2004 |
| 30212 | Trio Operating Company, Inc. | Wichita Falls, TX 76307 | Oil & Gas Operator | Apr 2006 |
| 30213 | Trio Petroleum Corp. | Glenville, WV 26351-0880 | Oil & Gas Operator | Jul 2016 |
| 30214 | Trio Petroleum LLC | | Oil & Gas Operator | Feb 2025 |
| 30215 | Trio Production Company, LLC | Stephens, AR 71764 | Oil Operator | Jan 2025 |
| 30216 | Triple "B" Production DRLG Inc | Poynor, TX 75782 | Oil & Gas Operator | Sep 2022 |
| 30217 | Triple "G" Oil Company | Clyde, TX 79510 | Oil & Gas Operator | Apr 1999 |
| 30218 | Triple "N" Services, Inc. | Midland, TX 79702 | Oil & Gas Operator | May 2025 |
| 30219 | Triple "S" Gas, Inc. | Louisville, KY 40255 | Oil & Gas Operator | May 2025 |
| 30220 | Triple "S" Resources Inc | Sapulpa, OK 74066 | Oil & Gas Operator | Jun 1995 |
| 30221 | Triple "S" Well Service, Inc. | Eureka, KS 67045 | Oil Operator | Sep 2024 |
| 30222 | Triple "W" Oil Company | Graham, TX 76450 | Oil & Gas Operator | May 2025 |
| 30223 | Triple 'A' Energy, Inc. | Boerne, TX 78006 | Oil & Gas Operator | May 2025 |
| 30224 | Triple 'H' Oil O | | Oil Operator | Apr 1992 |
| 30225 | Triple - I, Inc. | Kansas City, MO 64114 | Gas Operator | Oct 2000 |
| 30226 | Triple 7 Energy Company Inc | Prague, OK 74864 | Oil Operator | Feb 1997 |
| 30227 | Triple B Crude, LLC | Colony, KS 66015 | Oil Operator | Jan 2025 |
| 30228 | Triple B Energy Inc | Gillette, WY 82716 | Oil Operator | Dec 1999 |
| 30229 | Triple B Energy LLC | Dorset, OH 44032 | Oil & Gas Operator | Dec 2023 |
| 30230 | Triple B Resources | Barnsdall, OK 74002-9759 | Oil & Gas Operator | May 2014 |
| 30231 | Triple C Oil Inc. | Lockhart, TX 78644 | Oil Operator | Aug 2019 |
| 30232 | Triple C Petroleum LLC | Colony, KS 66015 | Oil Operator | Nov 2019 |
| 30233 | Triple C Properties Inc | Seminole, OK 74818 | Oil & Gas Operator | Mar 2025 |
| 30234 | Triple Crown Operating LLC | Tulsa, OK 74114 | Oil Operator | Jan 2025 |
| 30235 | Triple Crown Resources, LLC | Dallas, TX 75201 | Oil & Gas Operator | May 2025 |
| 30236 | Triple D Oil & Gas Co., Inc. | Brownwood, TX 76801 | Oil & Gas Operator | May 2025 |
| 30237 | Triple Diamond Energy Operating LLC | Dallas, TX 75254-8352 | Oil & Gas Operator | Jun 2014 |
| 30238 | Triple E Drillin | | Oil Operator | Jun 1992 |
| 30239 | Triple E Oil | Sterling, KS 67579 | Oil & Gas Operator | Mar 1999 |
| 30240 | Triple G Oil & Gas | Sonora, TX 76950 | Oil & Gas Operator | Oct 2022 |
| 30241 | Triple G Oilfiel | | Oil & Gas Operator | Dec 1985 |
| 30242 | Triple G Well Service, Inc. | Muenster, TX 76252 | Oil & Gas Operator | May 2025 |
| 30243 | Triple Gas Co | Marietta, OH 45750 | Oil & Gas Operator | Dec 1984 |
| 30244 | Triple H Operating | Tryon, OK 74875-6235 | Oil Operator | Apr 2022 |
| 30245 | Triple H Production | Stockdale, TX 78160 | Oil Operator | May 2025 |
| 30246 | Triple J Investments Inc | Longview, TX 75606 | Oil & Gas Operator | Feb 2023 |
| 30247 | Triple J L.L.C. | Coffeyville, KS 67336 | Oil Operator | Mar 1999 |
| 30248 | Triple J Oil Co. | Pampa, TX 79065 | Oil & Gas Operator | Aug 1996 |
| 30249 | Triple J Prod In | | Oil Operator | Sep 1989 |
| 30250 | Triple K | | Oil Operator | Jun 2007 |
| 30251 | Triple K Oil LLC | | Oil & Gas Operator | Dec 2024 |
| 30252 | Triple L Management Co Inc | Edmond, OK 73025-2908 | Oil & Gas Operator | Apr 2018 |
| 30253 | Triple L Oil Company | Corpus Chrsti, TX 78469 | Oil & Gas Operator | Jan 1998 |
| 30254 | Triple L Operating Company LLC | Kilgore, TX 75663 | Oil Operator | May 2025 |
| 30255 | Triple M Saltwater Disposal, LP | Kilgore, TX 75663 | Oil Operator | May 2025 |
| 30256 | Triple Oak Farms, LLC | Eden, NY 14057 | Gas Operator | Dec 2023 |
| 30257 | Triple R Oil Co | | Oil & Gas Operator | Jun 2002 |
| 30258 | Triple S Construction | Blue Mound, KS 66010 | Gas Operator | Jan 2025 |
| 30259 | Triple S Drilling Company | Leonard, OK 74043 | Oil & Gas Operator | Feb 2012 |
| 30260 | Triple S Oil Company | | Oil & Gas Operator | Feb 1979 |
| 30261 | Triple S Well Se | | Oil Operator | Dec 1996 |
| 30262 | Triple Seven, Inc. | Oklahoma City, OK 73132 | Oil & Gas Operator | Nov 1997 |
| 30263 | Triple Singleton, Inc. | Santa Fe, TX 77510 | Oil & Gas Operator | Dec 2020 |
| 30264 | Triple T Oil, LLC | Louisburg, KS 66053 | Oil Operator | Dec 2024 |
| 30265 | Triple T Pipelines, Inc. | Frontenac, KS 66763 | Oil & Gas Operator | Sep 2023 |
| 30266 | Triple T Resources, LP | Dallas, TX 75205 | Oil & Gas Operator | Jan 2025 |
| 30267 | Triple W Oil Inc | Chandler, OK 74834-0546 | Oil & Gas Operator | May 2013 |
| 30268 | Triple-T Pipelin | | Oil & Gas Operator | Oct 1995 |
| 30269 | Tripledee Drilling Co Inc | Ardmore, OK 73402-1888 | Oil & Gas Operator | Dec 2015 |
| 30270 | Tripledee Operating Company LLC | Ardmore, OK 73401 | Oil & Gas Operator | Nov 2022 |
| 30271 | Triplett Larry W | Oklahoma City, OK 73112-5325 | Oil & Gas Operator | Mar 2015 |
| 30272 | Tripod Oil And Gas 3 LLC | Tulsa, OK 74152 | Oil Operator | May 2025 |
| 30273 | Tripower Resources LLC | Ardmore, OK 73402 | Oil & Gas Operator | May 2025 |
| 30274 | Tripower Resources, Inc. | Ardmore, OK 73402 | Oil & Gas Operator | Mar 2020 |
| 30275 | Tripp & Sons, LLC | Odessa, TX 79768 | Oil & Gas Operator | May 2025 |
| 30276 | Tripp Oil Company Inc | Houston, TX 77023 | Oil & Gas Operator | Jan 1992 |
| 30277 | Trissell Alva Lee | Willow, OK 73673-9602 | Oil Operator | Apr 2020 |
| 30278 | Tristar Energy 1 | | Oil Operator | Sep 1987 |
| 30279 | Tristar Energy Corporation | Casper, WY 82602 | Oil & Gas Operator | Dec 2007 |
| 30280 | Tristar Exploration, Inc | Pflugerville, TX 78660 | Oil & Gas Operator | May 2025 |
| 30281 | Tristar Oil & Gas | Freer, TX 78357 | Oil & Gas Operator | May 2025 |
| 30282 | Tristar Petroleum Resourc | Woodland Hills, CA 89101 | Oil & Gas Operator | Dec 1991 |
| 30283 | Tristate Nla, LLC | | Oil Operator | Dec 2024 |
| 30284 | Tritex Production Co. | Iowa Park, TX 76367 | Oil & Gas Operator | Jan 2013 |
| 30285 | Tritex Resc Inco | | Oil Operator | Dec 1985 |
| 30286 | Tritex Resources, L.L.C. | Kilgore, TX 75663 | Oil & Gas Operator | Dec 2009 |
| 30287 | Triton Energy LLC | Wortham, TX 76693 | Oil & Gas Operator | May 2025 |
| 30288 | Triton Oil & Gas Corp. | Houston, TX 77002 | Oil & Gas Operator | Nov 2014 |
| 30289 | Triton Operating LLC | Wichita Falls, TX 76310 | Oil & Gas Operator | May 2025 |
| 30290 | Trittipo, J. L. | | Oil & Gas Operator | Nov 1997 |
| 30291 | Trium, LTD. | Laredo, TX 78041 | Oil Operator | May 2025 |
| 30292 | Triumph Energy Inc-P B Berry | | Oil & Gas Operator | Jun 1986 |
| 30293 | Triumph Energy Partners LLC | Oklahoma City, OK 73102-5804 | Oil & Gas Operator | Feb 2025 |
| 30294 | Triumph Energy, Inc. | Lafayette, LA 70505 | Oil & Gas Operator | Nov 2015 |
| 30295 | Triumph Exploration, Inc. | Midland, TX 79702 | Oil & Gas Operator | May 2025 |
| 30296 | Triumph Oil Company | Dallas, TX 75201 | Oil & Gas Operator | Jun 1994 |
| 30297 | Triumph Resources Inc | Oklahoma City, OK 73114 | Oil & Gas Operator | Nov 2004 |
| 30298 | Triunited Investors, LLC | Monte Sereno, CA 95030 | Oil Operator | May 2012 |
| 30299 | Trivestco Energy Company | Ponca City, OK 74601 | Oil & Gas Operator | Mar 2025 |
| 30300 | Trivista Operating LLC | Giddings, TX 78942 | Oil & Gas Operator | May 2025 |