| 701 | Texaco E & P Inc | Houston, TX 77099 | Oil & Gas Operator | May 2024 |
| 702 | Texas Energy Operations, LC | Wichita Falls, TX 76301 | Oil & Gas Operator | May 2024 |
| 703 | Texas Independent Explor., Inc. | Houston, TX 77002 | Oil & Gas Operator | Oct 2002 |
| 704 | Texas M.O.R., Inc. | Corsicana, TX 75109 | Oil Operator | Sep 2013 |
| 705 | Texas Utilities Fuel Co. | Dallas, TX 75201 | Oil & Gas Operator | Mar 2018 |
| 706 | Texas Utilities Mining Co. | Dallas, TX 75201 | Oil & Gas Operator | May 1995 |
| 707 | Texican Crude & Hydrocarbons LLC | Houston, TX 77002 | Oil Operator | Sep 2023 |
| 708 | Texla Energy Products LLC | Houston, TX 77002 | Oil Operator | Sep 2020 |
| 709 | Texlan Oil Company, Inc. | Tyler, TX 75701 | Oil & Gas Operator | Nov 1994 |
| 710 | Texlan Oil Company, L.C. | Tyler, TX 75711 | Oil & Gas Operator | Aug 2003 |
| 711 | Texstar Petroleum, Inc. | Houston, TX 77002 | Oil & Gas Operator | Nov 2000 |
| 712 | TGNR East Texas LLC | Houston, TX 77002 | Oil & Gas Operator | May 2024 |
| 713 | TGNR Gulf Coast LLC | Houston, TX 77002 | Oil & Gas Operator | May 2024 |
| 714 | The Houston Exploration Company | Houston, TX 77002 | Oil & Gas Operator | Apr 2017 |
| 715 | The Termo Company | Long Beach, CA 90801 | Oil & Gas Operator | Mar 2024 |
| 716 | Thor Operating Company | Tyler, TX 75710 | Oil & Gas Operator | Dec 1995 |
| 717 | Thrash, Afton | Kilgore, TX 75663 | Oil & Gas Operator | Apr 1996 |
| 718 | Tidemark Exploration Inc | Tulsa, OK 74120 | Oil & Gas Operator | Apr 2019 |
| 719 | Titan Rock E&P, LLC | Kilgore, TX 75663 | Oil & Gas Operator | Jan 2024 |
| 720 | Torch Energy Services, Inc. | Houston, TX 77010 | Oil & Gas Operator | Sep 2011 |
| 721 | Torch Operating Company | Houston, TX 77010 | Oil & Gas Operator | Mar 2015 |
| 722 | Total Minatome Corporation | Houston, TX 77210 | Oil & Gas Operator | Dec 1998 |
| 723 | Tracer Energy, Inc. | Graham, TX 76450 | Oil & Gas Operator | Nov 1998 |
| 724 | Tracy Production | Lindale, TX 75771 | Oil & Gas Operator | May 2024 |
| 725 | Trailblazer Energy Resources, LLC | Tulsa, OK 74136 | Oil & Gas Operator | May 2024 |
| 726 | Transfuel Resources Co | Houston, TX 77215 | Oil & Gas Operator | Aug 2013 |
| 727 | Trek Resources, Inc. | Dallas, TX 75207 | Oil & Gas Operator | May 2024 |
| 728 | Tri-Am Operating Company | Frankston, TX 75763 | Oil & Gas Operator | May 2024 |
| 729 | Trio Production Company, LLC | Stephens, AR 71764 | Oil Operator | Mar 2024 |
| 730 | Triple J Investments Inc | Longview, TX 75606 | Oil & Gas Operator | Feb 2023 |
| 731 | Triple M Saltwater Disposal, LP | Kilgore, TX 75663 | Oil Operator | May 2024 |
| 732 | Triumph Oil Company | Dallas, TX 75201 | Oil & Gas Operator | Jun 1994 |
| 733 | Trivium Operating, LLC | Fort Worth, TX 76107 | Oil & Gas Operator | May 2024 |
| 734 | Truth Resources LP | Conroe, TX 77304 | Oil Operator | Sep 2021 |
| 735 | Txu Fuel Company | Dallas, TX 75201 | Oil & Gas Operator | May 2004 |
| 736 | Txu Gas Company | Dallas, TX 75201 | Oil & Gas Operator | Sep 2004 |
| 737 | TXX Operating LLC | Shreveport, LA 71133 | Oil & Gas Operator | May 2024 |
| 738 | Tyler Oil & Gas Inc. | Tyler, TX 75702 | Oil & Gas Operator | Sep 2004 |
| 739 | Union Pacific Resources Co. | Fort Worth, TX 76101 | Oil & Gas Operator | Sep 2002 |
| 740 | Unocal Exploration Corporation | Houston, TX 77001 | Oil & Gas Operator | May 1992 |
| 741 | Ursus Oil And Gas | Tyler, TX 75703 | Oil & Gas Operator | May 2024 |
| 742 | Usfg Oil & Gas, Inc. | Dallas, TX 75231 | Oil & Gas Operator | Dec 2005 |
| 743 | Valence Operating Company | Kingwood, TX 77339 | Oil & Gas Operator | May 2024 |
| 744 | Vaughan Operating Company, LLC | Shreveport, LA 71101 | Oil & Gas Operator | Jun 2009 |
| 745 | Vaughan Production Company, Inc. | Norman, OK 73072 | Oil & Gas Operator | Sep 2014 |
| 746 | Ventex Operating Corp. | Addison, TX 75001 | Oil & Gas Operator | May 2024 |
| 747 | Venus Oil Company | San Antonio, TX 78209 | Oil & Gas Operator | Dec 2002 |
| 748 | Verado Energy, Inc. | Allen, TX 75013 | Oil & Gas Operator | May 2024 |
| 749 | Vintage Petroleum, Inc. | Houston, TX 77046 | Oil & Gas Operator | Jan 2024 |
| 750 | Virtex Operating Company, Inc. | Corpus Chrsti, TX 78401 | Oil & Gas Operator | Oct 2023 |
| 751 | Virtex Petroleum Company, Inc. | Corpus Chrsti, TX 78477 | Oil & Gas Operator | Jan 2008 |
| 752 | Wagner & Brown, LTD. | Midland, TX 79702 | Oil & Gas Operator | Aug 2014 |
| 753 | Wagner Oil Company | Fort Worth, TX 76102 | Oil & Gas Operator | May 2024 |
| 754 | Walter Exploration Inc | Dallas, TX 75206 | Oil & Gas Operator | May 2009 |
| 755 | Warwick Oil & Gas, Inc. | Houston, TX 77098 | Oil & Gas Operator | Feb 1993 |
| 756 | Weatherly Oil & Gas, LLC | Dallas, TX 75206 | Oil & Gas Operator | May 2024 |
| 757 | West Mountain Operating Co, Inc. | Longview, TX 75604 | Oil & Gas Operator | Feb 2019 |
| 758 | Weststar Oil & Gas Inc | Edmond, OK 73013 | Oil & Gas Operator | Feb 2024 |
| 759 | White Marlin Operating Company, LLC | Houston, TX 77002 | Oil & Gas Operator | May 2024 |
| 760 | Whiting Petroleum Corporation | Denver, CO 80290 | Oil & Gas Operator | Feb 2024 |
| 761 | Wildhorse Resources, LLC | Houston, TX 77279 | Oil & Gas Operator | Feb 2015 |
| 762 | Will-Drill Production Co., Inc. | Shreveport, LA 71105 | Oil & Gas Operator | May 2024 |
| 763 | Williams, Clayton Energy, Inc. | Houston, TX 77070 | Oil & Gas Operator | May 2024 |
| 764 | Willow Springs Prod. Serv.,LLC | Kilgore, TX 75663 | Oil & Gas Operator | Aug 1997 |
| 765 | Willow Springs Production, Inc. | Longview, TX 75606 | Oil & Gas Operator | Sep 1999 |
| 766 | Wilson Resources, Inc. | Longview, TX 75601 | Oil & Gas Operator | May 2024 |
| 767 | Wimco | Dallas, TX 75229 | Oil & Gas Operator | Jul 2008 |
| 768 | Winchester Production Co., LTD. | Shreveport, LA 71129 | Oil & Gas Operator | Sep 2008 |
| 769 | Winchester Production Company | Shreveport, LA 71129 | Oil & Gas Operator | Nov 2008 |
| 770 | Wing Corporation | Houston, TX 77002 | Oil & Gas Operator | Jun 2000 |
| 771 | Winwell, L.L.C. | Shreveport, LA 71101 | Oil & Gas Operator | Dec 2007 |
| 772 | Wisenbaker Production Company | Tyler, TX 75702 | Oil & Gas Operator | Oct 2011 |
| 773 | Woodbine Production Corporation | Kilgore, TX 75663 | Oil & Gas Operator | May 2024 |
| 774 | WSF, Inc. | Shreveport, LA 71101 | Oil & Gas Operator | Jun 2013 |
| 775 | WTXR Operating (Texas), Inc. | Carrollton, TX 75007 | Oil Operator | May 2024 |
| 776 | Xeric Oil & Gas Corporation | Midland, TX 79702 | Oil & Gas Operator | Apr 2014 |
| 777 | XTO Energy Inc. | Spring, TX 77389 | Oil & Gas Operator | May 2024 |
| 778 | Young, Clint Inc. | Graham, TX 76450 | Oil & Gas Operator | May 2024 |
| 779 | Young, Marshall R., Oil Co. | Fort Worth, TX 76107 | Oil & Gas Operator | Mar 2011 |
| 780 | Zadeck Energy Group | Shreveport, LA 71101 | Oil & Gas Operator | Dec 2011 |
| 781 | Zivney Energy | White Oak, TX 75693 | Oil & Gas Operator | May 2024 |
| 782 | Zone Energy, LLC | Houston, TX 77251 | Oil & Gas Operator | Dec 2023 |
| 783 | ZTH Operating, LLC | Arp, TX 75750 | Oil & Gas Operator | May 2024 |