| 30101 | Trout Kye Jr | | Oil & Gas Operator | Dec 2010 |
| 30102 | Trout Oil Company, Inc. | Odessa, TX 79762 | Oil & Gas Operator | Jul 2025 |
| 30103 | Troy E. Boyd | | Oil Operator | Oct 1998 |
| 30104 | Troy Energy Operating LLC | Oklahoma City, OK 73118 | Oil & Gas Operator | Apr 2025 |
| 30105 | Troy Jaco, Inc. | Sherman, TX 75091 | Oil Operator | Dec 2018 |
| 30106 | Troy Resources C | | Oil Operator | Jun 1990 |
| 30107 | Troyer Energies Inc | Waterford, PA 16441-2809 | Gas Operator | Dec 2014 |
| 30108 | Troyer Gas & Oil | Waterford, PA 16441-2843 | Gas Operator | Dec 2001 |
| 30109 | Troyer Howard E | Tulsa, OK 74133-8016 | Oil & Gas Operator | Dec 2014 |
| 30110 | Troyer, Marvin | Clymer, NY 14724 | Gas Operator | Dec 2024 |
| 30111 | Troyer, Walter, Jr. | Clymer, NY 14724 | Gas Operator | Dec 2024 |
| 30112 | Troyer, Wayne A. | Galva, KS 67443 | Oil Operator | Jun 1997 |
| 30113 | Troyer, William W. | Clymer, NY 14724 | Gas Operator | Dec 2024 |
| 30114 | TRP Operating LLC | Houston, TX 77024 | Oil & Gas Operator | Jul 2025 |
| 30115 | TRP-Ok Properties LLC | Norman, OK 73072 | Oil & Gas Operator | May 2025 |
| 30116 | Tru Operating LLC | Denton, TX 76201 | Oil & Gas Operator | Apr 2023 |
| 30117 | Truckers Disposal Inc | Skiatook, OK 74070 | Oil & Gas Operator | Apr 2025 |
| 30118 | True Oil Company | Casper, WY 82602 | Oil & Gas Operator | Aug 2003 |
| 30119 | True Oil Company LLC | Midland, TX 79701 | Oil & Gas Operator | Mar 2016 |
| 30120 | True Oil LLC | Casper, WY 82602 | Oil & Gas Operator | Jun 2025 |
| 30121 | True Performance Administrators LLC | Oklahoma City, OK 73102 | Oil & Gas Operator | Mar 2025 |
| 30122 | True Wolf Operating, LLC | Iowa Park, TX 76367 | Oil Operator | Jul 2025 |
| 30123 | Trueblood Resources, Inc. | Denver, CO 80222 | Oil & Gas Operator | Jul 2025 |
| 30124 | Truevine Gas Company | Ada, OK 74821-1422 | Oil & Gas Operator | Apr 2025 |
| 30125 | Truevine Operating LLC | Ada, OK 74821-1422 | Oil & Gas Operator | Apr 2025 |
| 30126 | Truluck Enterprises LLC | Wichita Falls, TX 76308-4454 | Oil & Gas Operator | Apr 2015 |
| 30127 | Trumart Oil Comp | | Oil Operator | May 1990 |
| 30128 | Trumart Oil Company | Ellis, KS 67637 | Oil Operator | Dec 2000 |
| 30129 | Trumbull Resources | Mineral Ridge, OH 44440 | Oil & Gas Operator | Dec 2016 |
| 30130 | Trump Energy | Austin, TX 78734 | Oil & Gas Operator | Mar 2008 |
| 30131 | Trumter Petroleum Corporation | Fort Worth, TX 76185 | Oil & Gas Operator | Aug 1998 |
| 30132 | Trunkline Gas Company | | Oil Operator | Mar 2008 |
| 30133 | Trust Oil Co. | Pine, CO 80470 | Oil & Gas Operator | Jul 2025 |
| 30134 | Trustar Operating Company Inc. | Austin, TX 78750 | Oil Operator | Jul 2025 |
| 30135 | Trutex Operating, LLC | Haltom City, TX 76117 | Oil & Gas Operator | Jul 2025 |
| 30136 | Tryall, Inc | Porter, TX 77365 | Oil & Gas Operator | Jul 2025 |
| 30137 | Tryco Exploration, LLC | Plano, TX 75026 | Oil & Gas Operator | Nov 2006 |
| 30138 | Tryma Operating | Borger, TX 79008 | Oil & Gas Operator | Jul 2025 |
| 30139 | Tryvest, Inc. | | Oil & Gas Operator | Sep 1991 |
| 30140 | TS & T Drilling, Inc. | Wichita Falls, TX 76301 | Oil & Gas Operator | Mar 2016 |
| 30141 | TS Leasing Operations Inc. | | Oil & Gas Operator | May 2025 |
| 30142 | TS Oil, LLC | Fort Worth, TX 76114 | Oil & Gas Operator | Jul 2025 |
| 30143 | Tsar Energy, LLC | Dallas, TX 75205 | Oil & Gas Operator | Jul 2025 |
| 30144 | Tsar Operating Company | Fort Worth, TX 76116 | Oil & Gas Operator | Jul 2021 |
| 30145 | Tschoepe, Arthur J. | Leakey, TX 78873 | Oil & Gas Operator | Jun 2001 |
| 30146 | TSF Operating | Midland, TX 79702 | Oil & Gas Operator | Mar 2008 |
| 30147 | Tsoco | Tuleta, TX 78162 | Oil & Gas Operator | Apr 2017 |
| 30148 | Tsoco & W. M. Null | Pettus, TX 78146 | Oil & Gas Operator | Aug 2002 |
| 30149 | TSR Enterprises, LLC | Harrisville, WV 26362-7631 | Oil & Gas Operator | Dec 2021 |
| 30150 | TSW Oil & Gas, LLC | Abilene, TX 79602 | Oil & Gas Operator | Jan 2016 |
| 30151 | TSW Oil LLC | Dixon, KY 42409 | Oil Operator | Dec 2023 |
| 30152 | TT Operating, LLC | Kilgore, TX 75663 | Oil & Gas Operator | Jul 2025 |
| 30153 | TTK Energy LLC | Kilgore, TX 75663 | Oil Operator | Jul 2025 |
| 30154 | TTL Energy Resources, Inc. | Borger, TX 79008 | Oil & Gas Operator | Aug 2013 |
| 30155 | Tubbs Patrick | Neodesha, KS 66757 | Oil Operator | Sep 2008 |
| 30156 | Tuckco Petroleum Corporation | Andrews, TX 79714 | Oil & Gas Operator | Jul 2025 |
| 30157 | Tucker Drilling Company, Inc. | San Angelo, TX 76903 | Oil & Gas Operator | Jul 1996 |
| 30158 | Tucker Gary & Deedee | Jennings, OK 74038 | Oil & Gas Operator | Oct 2024 |
| 30159 | Tucker Operating Co., Inc. | Victoria, TX 77903 | Oil & Gas Operator | Jul 2025 |
| 30160 | Tucker Petroleum, Inc. | Corpus Chrsti, TX 78468 | Oil & Gas Operator | Jul 2025 |
| 30161 | Tucker Resources, Inc. | Wichita Falls, TX 76301 | Oil & Gas Operator | Aug 2003 |
| 30162 | Tucker Ron & Co | Norman, OK 73069-8511 | Gas Operator | Sep 2017 |
| 30163 | Tucker, Carl H., Jr. | Independence, KS 67301 | Oil Operator | Jul 1996 |
| 30164 | Tucker, Gene | | Oil & Gas Operator | Dec 2011 |
| 30165 | Tucker, Stephen A. | Independence, KS 67301 | Oil Operator | Feb 2009 |
| 30166 | Tucker, Timothy R | | Oil Operator | Apr 2025 |
| 30167 | Tucson Oil & Gas Inc | | Oil & Gas Operator | Aug 1994 |
| 30168 | Tudex Petroleum Inc | | Oil & Gas Operator | Sep 2019 |
| 30169 | Tug Fork Development | Catlettsburg, KY 41129 | Gas Operator | Dec 2021 |
| 30170 | Tug Hill Operating, LLC | Fort Worth, TX 76107 | Oil & Gas Operator | Dec 2021 |
| 30171 | Tug Oil & Gas, L.L.C. | Breckenridge, TX 76424 | Oil & Gas Operator | Jul 2025 |
| 30172 | Tularosa Operating Company | Kerrville, TX 78029 | Oil & Gas Operator | Mar 2024 |
| 30173 | Tuleta Energy Partners, LLC | Norman, OK 73072 | Oil & Gas Operator | Jul 2025 |
| 30174 | Tulip Industries, Inc. | | Oil & Gas Operator | Feb 2024 |
| 30175 | Tully Drilling Company | | Gas Operator | Dec 2021 |
| 30176 | Tulsa Energy Inc | Tulsa, OK 74133 | Oil & Gas Operator | May 2013 |
| 30177 | Tulsa Energy Partners LLC | Tulsa, OK 74103-4461 | Oil & Gas Operator | May 2025 |
| 30178 | Tulsa Minerals Inc | Tulsa, OK 74136-1045 | Oil & Gas Operator | May 2013 |
| 30179 | Tulum Corporation | Oklahoma City, OK 73101-0125 | Oil & Gas Operator | Feb 2025 |
| 30180 | Tumble Weed Production Co. | Borger, TX 79008 | Oil & Gas Operator | Dec 1994 |
| 30181 | Tumbleweed Energy Limited | Midland, TX 79704 | Oil & Gas Operator | Dec 2022 |
| 30182 | Tundra Energy | | Oil Operator | Jan 2025 |
| 30183 | Tundra Operating LLC | Spring, TX 77386 | Oil Operator | May 2017 |
| 30184 | Turkey Run LLC | Arcade, NY 14009 | Gas Operator | Dec 2024 |
| 30185 | Turm Oil Inc | Butler, PA 16002-0471 | Oil & Gas Operator | Dec 2024 |
| 30186 | Turnbow Drilling Co. | Holliday, TX 76366 | Oil & Gas Operator | Jul 2025 |
| 30187 | Turnbow John R Company | Tulsa, OK 74120-2420 | Oil & Gas Operator | Aug 2006 |
| 30188 | Turnbull Gas, LLC | North Collins, NY 14111 | Gas Operator | Dec 2024 |
| 30189 | Turnco Drilling, Inc. | Portland, OR 97208 | Oil & Gas Operator | Dec 2009 |
| 30190 | Turner Jeff | Marlow, OK 73055 | Oil & Gas Operator | Apr 2007 |
| 30191 | Turner John O | Drumright, OK 74030-1216 | Oil & Gas Operator | Feb 1998 |
| 30192 | Turner Oil Company | Yale, OK 74085-0234 | Oil & Gas Operator | Nov 2014 |
| 30193 | Turner Petroleum Corp And Patrick Petroleum Corp | | Oil & Gas Operator | Mar 1991 |
| 30194 | Turner Production | Big Lake, TX 76932 | Oil & Gas Operator | Jul 2025 |
| 30195 | Turner Production Co | Dallas, TX 75206 | Oil & Gas Operator | Nov 2023 |
| 30196 | Turner Randall L | Duncan, OK 73533-4826 | Oil Operator | Feb 2025 |
| 30197 | Turner Resources Inc | Hennessey, OK 73742 | Oil & Gas Operator | Apr 2025 |
| 30198 | Turner Smith & Associates | Englewood, CO 80111 | Oil & Gas Operator | May 1994 |
| 30199 | Turner, D. Ann Garrett, Est. Of | Big Spring, TX 79721 | Oil & Gas Operator | Jan 1999 |
| 30200 | Turner, Greg | Cross Plains, TX 76443 | Oil & Gas Operator | Jul 2025 |