| 701 | Tsar Energy, LLC | Dallas, TX 75205 | Oil & Gas Operator | May 2024 |
| 702 | Tsar Operating Company | Fort Worth, TX 76116 | Oil & Gas Operator | Jul 2021 |
| 703 | Tschoepe, Arthur J. | Leakey, TX 78873 | Oil & Gas Operator | Jun 2001 |
| 704 | TSF Operating | Midland, TX 79702 | Oil & Gas Operator | Mar 2008 |
| 705 | Tsoco | Tuleta, TX 78162 | Oil & Gas Operator | Apr 2017 |
| 706 | Tsoco & W. M. Null | Pettus, TX 78146 | Oil & Gas Operator | Aug 2002 |
| 707 | TSW Oil & Gas, LLC | Abilene, TX 79602 | Oil & Gas Operator | Jan 2016 |
| 708 | TT Operating, LLC | Kilgore, TX 75663 | Oil & Gas Operator | May 2024 |
| 709 | TTK Energy LLC | Kilgore, TX 75663 | Oil Operator | May 2024 |
| 710 | TTL Energy Resources, Inc. | Borger, TX 79008 | Oil & Gas Operator | Aug 2013 |
| 711 | Tuckco Petroleum Corporation | Andrews, TX 79714 | Oil & Gas Operator | May 2024 |
| 712 | Tucker Drilling Company, Inc. | San Angelo, TX 76903 | Oil & Gas Operator | Jul 1996 |
| 713 | Tucker Operating Co., Inc. | Victoria, TX 77903 | Oil & Gas Operator | May 2024 |
| 714 | Tucker Petroleum, Inc. | Corpus Chrsti, TX 78468 | Oil & Gas Operator | May 2024 |
| 715 | Tucker Resources, Inc. | Wichita Falls, TX 76301 | Oil & Gas Operator | Aug 2003 |
| 716 | Tug Hill Operating, LLC | Fort Worth, TX 76107 | Oil & Gas Operator | Dec 2021 |
| 717 | Tug Oil & Gas, L.L.C. | Breckenridge, TX 76424 | Oil & Gas Operator | May 2024 |
| 718 | Tularosa Operating Company | Kerrville, TX 78029 | Oil & Gas Operator | May 2024 |
| 719 | Tuleta Energy Partners, LLC | Norman, OK 73072 | Oil & Gas Operator | May 2024 |
| 720 | Tulsa Minerals Inc | Tulsa, OK 74136-1045 | Oil & Gas Operator | May 2013 |
| 721 | Tumble Weed Production Co. | Borger, TX 79008 | Oil & Gas Operator | Dec 1994 |
| 722 | Tumbleweed Energy Limited | Midland, TX 79704 | Oil & Gas Operator | Dec 2022 |
| 723 | Tundra Operating LLC | Spring, TX 77386 | Oil Operator | May 2017 |
| 724 | Turnbow Drilling Co. | Holliday, TX 76366 | Oil & Gas Operator | May 2024 |
| 725 | Turner Production | Big Lake, TX 76932 | Oil & Gas Operator | May 2024 |
| 726 | Turner, D. Ann Garrett, Est. Of | Big Spring, TX 79721 | Oil & Gas Operator | Jan 1999 |
| 727 | Turner, Greg | Cross Plains, TX 76443 | Oil & Gas Operator | May 2024 |
| 728 | Turner, M. O. | San Antonio, TX 78278 | Oil & Gas Operator | Apr 2003 |
| 729 | Turner, Randy | Olney, TX 76374 | Oil & Gas Operator | Jan 2005 |
| 730 | Turquoise Bay Corporation | Odessa, TX 79760 | Oil & Gas Operator | Dec 2018 |
| 731 | Turrentine Oil & Gas, Inc. | Horseshoe Bay, TX 78657 | Oil & Gas Operator | Oct 2019 |
| 732 | Turrentine Oil And Gas | Levelland, TX 79336 | Oil & Gas Operator | Feb 1996 |
| 733 | Tuskar (Texas), Inc. | Oklahoma City, OK 73116 | Oil & Gas Operator | Jan 2016 |
| 734 | Tuthill & Barbee | Amarillo, TX 79101 | Oil & Gas Operator | Nov 1994 |
| 735 | TWCS Operating Co., LLC | MC Gregor, TX 76657 | Oil Operator | May 2024 |
| 736 | Twilco Operating LLC | Holliday, TX 76366 | Oil Operator | May 2024 |
| 737 | Twilight Energy LLC | Fort Worth, TX 76185 | Oil & Gas Operator | May 2024 |
| 738 | Twin Oaks Construction Company | Irving, TX 75063 | Oil & Gas Operator | May 2024 |
| 739 | Twins Oil Co. | Monahans, TX 79756 | Oil & Gas Operator | May 2024 |
| 740 | Two Bit Operating Company LLC | Fort Worth, TX 76110 | Oil & Gas Operator | May 2024 |
| 741 | Two Black Bears Oil, Inc. | Midland, TX 79710 | Oil & Gas Operator | Sep 2003 |
| 742 | Two Oaks Operating Company, LLC. | Flower Mound, TX 75028 | Oil & Gas Operator | Mar 2008 |
| 743 | Two P Partners, LLC | Golden, CO 80401 | Oil & Gas Operator | May 2024 |
| 744 | Twojo, Inc. | Longview, TX 75601 | Oil & Gas Operator | Nov 1996 |
| 745 | TX Heat Of The Permian Basin Inc | Odessa, TX 79768 | Oil & Gas Operator | Dec 2021 |
| 746 | TX Lone Star Operating Co, LLC | Sulphur SPGS, TX 75483 | Oil & Gas Operator | May 2024 |
| 747 | TX Petroleum Company | Corpus Chrsti, TX 78412 | Oil & Gas Operator | Apr 1996 |
| 748 | Txco Resources Inc. | San Antonio, TX 78280 | Oil & Gas Operator | May 2024 |
| 749 | Txla Energy, Inc. | Houston, TX 77018 | Oil & Gas Operator | May 2024 |
| 750 | Txo Production Corp. | Ganado, TX 77962 | Oil & Gas Operator | Aug 2022 |
| 751 | Txok Texas Energy Resources,L.P. | Dallas, TX 75251 | Oil & Gas Operator | Apr 2008 |
| 752 | Txon Partners, LLC | Houston, TX 77057 | Oil & Gas Operator | Jun 2017 |
| 753 | TXP, Incorporated | San Angelo, TX 76906 | Oil & Gas Operator | May 2024 |
| 754 | Txu Fuel Company | Dallas, TX 75201 | Oil & Gas Operator | May 2004 |
| 755 | Txu Gas Company | Dallas, TX 75201 | Oil & Gas Operator | Sep 2004 |
| 756 | Txu Lone Star Pipeline | Dallas, TX 75201 | Oil & Gas Operator | Oct 2003 |
| 757 | TXX Operating LLC | Shreveport, LA 71133 | Oil & Gas Operator | May 2024 |
| 758 | Ty-Tex Exploration, Inc. | Tyler, TX 75711 | Oil Operator | Dec 2000 |
| 759 | Tyco Operating Co. | Throckmorton, TX 76483 | Oil & Gas Operator | May 2024 |
| 760 | Tyl Oil | Canon City, CO 81212 | Gas Operator | May 1994 |
| 761 | Tyler Oil & Gas Inc. | Tyler, TX 75702 | Oil & Gas Operator | Sep 2004 |
| 762 | Tyner Texas Operating Company | Dallas, TX 75248 | Oil & Gas Operator | May 2024 |