| 30101 | Turner, Jack L | Smackover, AR 71762 | Oil Operator | Nov 2023 |
| 30102 | Turner, M. O. | San Antonio, TX 78278 | Oil & Gas Operator | Apr 2003 |
| 30103 | Turner, Randy | Olney, TX 76374 | Oil & Gas Operator | Jan 2005 |
| 30104 | Turning Point Oil, Inc. | Eastland, TX 76448 | Oil & Gas Operator | Jan 2021 |
| 30105 | Turnkey E&P Corporation | | Oil & Gas Operator | Dec 2010 |
| 30106 | Turntable Energy Inc | Ponca City, OK 74604 | Oil & Gas Operator | Jul 2025 |
| 30107 | Turpin Ledon Production | Ada, OK 74820-0549 | Oil Operator | Jul 2025 |
| 30108 | Turquoise Bay Corporation | Odessa, TX 79760 | Oil & Gas Operator | Dec 2018 |
| 30109 | Turrentine Oil & Gas, Inc. | Horseshoe Bay, TX 78657 | Oil & Gas Operator | Oct 2019 |
| 30110 | Turrentine Oil And Gas | Levelland, TX 79336 | Oil & Gas Operator | Feb 1996 |
| 30111 | Turrill Sheldon L | Westerville, OH 43081 | Oil & Gas Operator | Dec 1984 |
| 30112 | Turtle Mountain Gas & Oil, Inc. | | Oil & Gas Operator | Oct 2006 |
| 30113 | Tuscany Deli & Meats, Inc. | Fredonia, NY 14063 | Gas Operator | Dec 2024 |
| 30114 | Tuscany Gas Limited Liability Company | | Gas Operator | Dec 2021 |
| 30115 | Tuscany Operating LLC | Oklahoma City, OK 73106 | Oil & Gas Operator | Sep 2014 |
| 30116 | Tuscola Energy Inc | | Oil & Gas Operator | Jul 2025 |
| 30117 | Tuskar (Texas), Inc. | Nichols Hill, OK 73116 | Oil & Gas Operator | Jan 2016 |
| 30118 | Tussel Clarence Jr | Jefferson, OH 44047 | Oil & Gas Operator | Dec 2019 |
| 30119 | Tutcher, Dan C. | Houston, TX 77002 | Oil Operator | Dec 2004 |
| 30120 | Tuthill & Barbee | Amarillo, TX 79101 | Oil & Gas Operator | Nov 1994 |
| 30121 | Tuthill S Keith & Bill Barbee | Amarillo, TX 79101-1427 | Oil & Gas Operator | Dec 2004 |
| 30122 | Tuway Oil, Inc | | Oil & Gas Operator | Jun 2006 |
| 30123 | TW Oil LLC | Fordsville, KY 42343 | Oil & Gas Operator | Dec 2024 |
| 30124 | TW Phillips Gas Supply Corp | Butler, PA 16001-4904 | Oil & Gas Operator | Dec 2011 |
| 30125 | TWC Oil Company, Inc. | | Oil Operator | Jan 2025 |
| 30126 | Twenty First Century Res Inc | Lajolla, CA 92037-7044 | Oil & Gas Operator | Mar 2015 |
| 30127 | Twenty/Twenty Oil & Gas Inc | Hennessey, OK 73742 | Oil & Gas Operator | Aug 2025 |
| 30128 | Twilco Operating LLC | Holliday, TX 76366 | Oil Operator | Nov 2025 |
| 30129 | Twilight Energy LLC | Fort Worth, TX 76185 | Oil & Gas Operator | Nov 2025 |
| 30130 | Twin Arrow Inc | Rangely, CO 81648 | Oil & Gas Operator | Sep 2009 |
| 30131 | Twin City Gas | | Gas Operator | Nov 1997 |
| 30132 | Twin Eagle Petro | | Oil Operator | Aug 1990 |
| 30133 | Twin Eagle Petroleum Corp | Tulsa, OK 74136 | Oil & Gas Operator | Jun 2002 |
| 30134 | Twin M, Inc. | Kingman, KS 67068 | Oil & Gas Operator | Jun 2025 |
| 30135 | Twin Oaks Construction Company | Irving, TX 75063 | Oil & Gas Operator | Nov 2025 |
| 30136 | Twin Oil Partnership LLC | | Oil Operator | Dec 2024 |
| 30137 | Twin Star Petrol | | Oil & Gas Operator | Jan 1989 |
| 30138 | Twiner Oil & Gas Corporation | | Oil & Gas Operator | Oct 1988 |
| 30139 | Twinoaks Oil & Gas Co | Newark, OH 43058 | Oil & Gas Operator | Dec 2024 |
| 30140 | Twinoco | Caney, KS 67333 | Oil Operator | Nov 1996 |
| 30141 | Twins Oil Co. | Monahans, TX 79756 | Oil & Gas Operator | Nov 2025 |
| 30142 | Twisted Oak Operating LLC | Oklahoma City, OK 73102 | Oil & Gas Operator | Aug 2025 |
| 30143 | Twisted Resources Inc | Blanchard, OK 73010-8463 | Oil & Gas Operator | Jul 2025 |
| 30144 | TWM Production Co., A General Partnership | Chanute, KS 66720 | Oil Operator | May 2025 |
| 30145 | Two Bay Petroleum | | Oil & Gas Operator | Dec 2010 |
| 30146 | Two Bayous, Inc. | | Oil & Gas Operator | Dec 2024 |
| 30147 | Two Bit Operating Company LLC | Fort Worth, TX 76110 | Oil & Gas Operator | Nov 2025 |
| 30148 | Two Black Bears Oil, Inc. | Midland, TX 79710 | Oil & Gas Operator | Sep 2003 |
| 30149 | Two Gems Company | McAlester, OK 74502-1996 | Oil & Gas Operator | Jul 2025 |
| 30150 | Two Oaks Operating Company, LLC. | Flower Mound, TX 75028 | Oil & Gas Operator | Mar 2008 |
| 30151 | Two P Partners, LLC | Houston, TX 77056 | Oil & Gas Operator | Nov 2025 |
| 30152 | Two Pines | Drumright, OK 74030-5502 | Oil & Gas Operator | Feb 2012 |
| 30153 | Twojo, Inc. | Longview, TX 75601 | Oil & Gas Operator | Nov 1996 |
| 30154 | TX Heat Of The Permian Basin Inc | Odessa, TX 79768 | Oil & Gas Operator | Dec 2021 |
| 30155 | TX Lone Star Operating Co, LLC | Sulphur SPGS, TX 75483 | Oil & Gas Operator | Nov 2025 |
| 30156 | TX Petroleum Company | Corpus Chrsti, TX 78412 | Oil & Gas Operator | Apr 1996 |
| 30157 | Txco Resources Inc. | San Antonio, TX 78280 | Oil & Gas Operator | Nov 2025 |
| 30158 | Txla Energy, Inc. | Houston, TX 77018 | Oil & Gas Operator | Nov 2025 |
| 30159 | Txo Prod Corp.-Arkla Expl. Co. | | Oil & Gas Operator | Dec 1990 |
| 30160 | Txo Production Corp. | Ganado, TX 77962 | Oil & Gas Operator | Aug 2022 |
| 30161 | Txo Production Corp/Amh O&G Co | | Oil & Gas Operator | Dec 1990 |
| 30162 | Txok Energy Resources Company | Tulsa, OK 74172-0140 | Oil & Gas Operator | Feb 2017 |
| 30163 | Txok Texas Energy Resources,L.P. | Dallas, TX 75251 | Oil & Gas Operator | Apr 2008 |
| 30164 | Txon Partners, LLC | Houston, TX 77057 | Oil & Gas Operator | Jun 2017 |
| 30165 | TXP Operating Co. | | Oil & Gas Operator | Jul 1992 |
| 30166 | TXP, Incorporated | San Angelo, TX 76906 | Oil & Gas Operator | Nov 2025 |
| 30167 | Txu Fuel Company | Dallas, TX 75201 | Oil & Gas Operator | May 2004 |
| 30168 | Txu Gas Company | Dallas, TX 75201 | Oil & Gas Operator | Sep 2004 |
| 30169 | Txu Lone Star Pipeline | Dallas, TX 75201 | Oil & Gas Operator | Oct 2003 |
| 30170 | TXX Operating LLC | Shreveport, LA 71133 | Oil & Gas Operator | Nov 2025 |
| 30171 | Ty-Tex Exploration, Inc. | Tyler, TX 75711 | Oil Operator | Dec 2000 |
| 30172 | Tyco Incorporate | | Oil & Gas Operator | Oct 1995 |
| 30173 | Tyco Oil Co. | | Oil Operator | Jan 2025 |
| 30174 | Tyco Operating Co. | Archer City, TX 76351 | Oil & Gas Operator | Nov 2025 |
| 30175 | Tyco, Inc. | Independence, KS 67301 | Oil & Gas Operator | Jan 1998 |
| 30176 | Tygr Operating Company, LLC | | Oil & Gas Operator | Nov 2024 |
| 30177 | Tyl Oil | Canon City, CO 81212 | Gas Operator | May 1994 |
| 30178 | Tyler Enterprises Inc | Bristow, OK 74010-3192 | Oil & Gas Operator | Feb 2004 |
| 30179 | Tyler Oil & Gas Inc. | Tyler, TX 75702 | Oil & Gas Operator | Sep 2004 |
| 30180 | Tyler Oil Company | Billings, MT 59104-3203 | Oil & Gas Operator | Nov 2019 |
| 30181 | Tyler Production, LLC | | Oil & Gas Operator | Jul 2013 |
| 30182 | Tyler Rockies Exploration LTD | Tyler, TX 75710-0119 | Oil & Gas Operator | Aug 2025 |
| 30183 | Tyler, Scott A | | Oil & Gas Operator | Jul 2025 |
| 30184 | Tyler, Steven Lee | | Oil Operator | May 2014 |
| 30185 | Tyluka Operations, LLC | Hays, KS 67601 | Oil Operator | May 2025 |
| 30186 | Tyner Texas Operating Company | Dallas, TX 75248 | Oil & Gas Operator | Nov 2025 |
| 30187 | Tyrex Oil Company | Casper, WY 82602 | Oil & Gas Operator | May 1997 |
| 30188 | Tyro Oil Develop | | Oil Operator | Jul 1991 |
| 30189 | Tyrok | | Oil & Gas Operator | Nov 2010 |
| 30190 | Tysco Oil And Gas Corp. | | Oil & Gas Operator | Dec 2024 |
| 30191 | Tyson Gary | Hobart, OK 73651-6413 | Oil & Gas Operator | Mar 2018 |
| 30192 | Tyson Oil Co. | | Oil Operator | Jan 2025 |
| 30193 | Tyson Olan | Hobart, OK 73651-6413 | Oil & Gas Operator | Apr 2015 |
| 30194 | Tytan Operating Company LLC | Edmond, OK 73083-3794 | Oil & Gas Operator | May 2016 |
| 30195 | U Bee Tea Production LLC | Culbertson, MT 59218 | Oil & Gas Operator | Aug 2025 |
| 30196 | U R C C | | Oil & Gas Operator | Jun 1991 |
| 30197 | U S Drilling Company Inc | Holdenville, OK 74848-0913 | Oil & Gas Operator | Mar 2017 |
| 30198 | U S Energy Corp. Of Amer. Inc. | Ranger, TX 76470 | Oil & Gas Operator | Nov 2025 |
| 30199 | U S Exploraton Liq Trust | | Oil & Gas Operator | Oct 1994 |
| 30200 | U S Liquids Of La., L.P. | | Oil Operator | Apr 2014 |