| 701 | Stillwater Oil & Gas | Irving, TX 75062 | Oil & Gas Operator | Mar 2015 |
| 702 | Stover Company | Tulsa, OK 74152-0786 | Oil & Gas Operator | Jan 2013 |
| 703 | STP Cherokee, Inc. | Oklahoma City, OK 73102 | Oil & Gas Operator | Mar 2014 |
| 704 | Stroud Oil Properties, Inc. | Fort Worth, TX 76102 | Oil & Gas Operator | May 2013 |
| 705 | Sullivan & Co. | Tulsa, OK 74114 | Oil & Gas Operator | May 2022 |
| 706 | Sultex Oil & Gas Inc | Houston, TX 77059-3126 | Oil & Gas Operator | Aug 2002 |
| 707 | Sundown Energy LP | Dallas, TX 75248 | Oil & Gas Operator | May 2025 |
| 708 | Sundown Energy, Inc. | Dallas, TX 75240 | Oil & Gas Operator | Jan 2025 |
| 709 | SWN Production LLC | Spring, TX 77389-4954 | Oil & Gas Operator | Feb 2022 |
| 710 | Sylvan Oil Operating Company | Tulsa, OK 74103-3516 | Oil & Gas Operator | Apr 2016 |
| 711 | T B K Energy Company | New Braunfels, TX 78130 | Oil & Gas Operator | Mar 2025 |
| 712 | Tack Operating LLC | Oklahoma City, OK 73172-1492 | Oil & Gas Operator | Aug 2021 |
| 713 | Tat, Inc. | Oklahoma City, OK 73127 | Oil & Gas Operator | Feb 2023 |
| 714 | Taylor International Inc | Drumright, OK 74030-1173 | Oil & Gas Operator | Mar 2020 |
| 715 | Taylor R C Companies Inc | Oklahoma City, OK 73118-4015 | Oil & Gas Operator | May 2021 |
| 716 | Taylor R Clark Exploration Inc | | Oil & Gas Operator | Aug 1992 |
| 717 | Tcina Inc | Seminole, OK 74868 | Oil & Gas Operator | May 2023 |
| 718 | Teocalli Exploration LLC | Oklahoma City, OK 73118 | Oil & Gas Operator | Mar 2025 |
| 719 | Territory Resources LLC | Stillwater, OK 74074-1869 | Oil & Gas Operator | Apr 2025 |
| 720 | Terry Production Co | Stroud, OK 74079-0475 | Oil & Gas Operator | Aug 2008 |
| 721 | Terzan Energy II LLC | Chandler, OK 74834 | Oil & Gas Operator | Feb 2025 |
| 722 | Tessera Energy LLC | Oklahoma City, OK 73120 | Oil & Gas Operator | Feb 2025 |
| 723 | Tex-Star Production | Dallas, TX 75206 | Oil & Gas Operator | Mar 2025 |
| 724 | Tex/Con Oil & Gas Company | Houston, TX 77074 | Oil & Gas Operator | Feb 2001 |
| 725 | Texaco Expl. And Prod. Inc. | Houston, TX 77236 | Oil & Gas Operator | Mar 2025 |
| 726 | Texaco Inc | Kingfisher, OK 73750 | Oil & Gas Operator | Dec 2017 |
| 727 | Texaco Oils, Inc. | Tulsa, OK 74102-2420 | Oil & Gas Operator | Jan 2003 |
| 728 | Texakoma Oil & Gas Corp | Dallas, TX 75240 | Oil & Gas Operator | Sep 2014 |
| 729 | Texas United Petroleum Inc | Dallas, TX 75243 | Oil & Gas Operator | Jun 2003 |
| 730 | The Guinn Company LLC | Asher, OK 74826-6012 | Oil & Gas Operator | Oct 2024 |
| 731 | The KT Oil Company LLC | Ada, OK 74820 | Oil Operator | Feb 2025 |
| 732 | Thomas, R. W. Inc. | Norman, OK 73070 | Oil & Gas Operator | Apr 2015 |
| 733 | Thompson, Joe L., Inc. | Oklahoma City, OK 73132 | Oil & Gas Operator | Oct 2005 |
| 734 | Thunder Oil & Gas, LLC | Ardmore, OK 73402 | Oil & Gas Operator | Feb 2025 |
| 735 | TLS Oil & Gas Inc | Kingfisher, OK 73750-0901 | Oil & Gas Operator | Feb 2025 |
| 736 | Todd John C | Oklahoma City, OK 73112-8049 | Oil & Gas Operator | May 2015 |
| 737 | Toklan Oil And Gas Corporation | Tulsa, OK 74136 | Oil & Gas Operator | Mar 2025 |
| 738 | Toklan Oil Corporation | Tulsa, OK 74103 | Oil & Gas Operator | Mar 2015 |
| 739 | Toland & Johnston Inc | Edmond, OK 73034 | Oil & Gas Operator | Mar 2025 |
| 740 | Trail Ridge Energy Partners, LLC | Grapevine, TX 76051 | Oil & Gas Operator | Mar 2025 |
| 741 | Trailblazer Energy LLC | Plano, TX 75075 | Oil & Gas Operator | Feb 2025 |
| 742 | Trans Terra Corp Int'L | Amarillo, TX 79159-0370 | Oil & Gas Operator | Jul 1993 |
| 743 | Trend Gas & Oil Inc | Jenks, OK 74037 | Oil & Gas Operator | Dec 2000 |
| 744 | Trenon Oil & Gas Inc | Oklahoma City, OK 73112-4279 | Oil & Gas Operator | Sep 1996 |
| 745 | Tridon Oil Inc | Lafayette, LA 70505-2305 | Gas Operator | Dec 2013 |
| 746 | Triple H Operating | Tryon, OK 74875-6235 | Oil Operator | Apr 2022 |
| 747 | Triple W Oil Inc | Chandler, OK 74834-0546 | Oil & Gas Operator | May 2013 |
| 748 | Tripower Resources LLC | Ardmore, OK 73402 | Oil & Gas Operator | May 2025 |
| 749 | Tripower Resources, Inc. | Ardmore, OK 73402 | Oil & Gas Operator | Mar 2020 |
| 750 | True Performance Administrators LLC | Oklahoma City, OK 73102 | Oil & Gas Operator | Feb 2025 |
| 751 | Truevine Operating LLC | Ada, OK 74821-1422 | Oil & Gas Operator | Jan 2025 |
| 752 | Tulsa Minerals Inc | Tulsa, OK 74136-1045 | Oil & Gas Operator | May 2013 |
| 753 | Tuscany Operating LLC | Oklahoma City, OK 73106 | Oil & Gas Operator | Sep 2014 |
| 754 | Twenty/Twenty Oil & Gas Inc | Hennessey, OK 73742 | Oil & Gas Operator | Mar 2025 |
| 755 | Txo Production Corp. | Ganado, TX 77962 | Oil & Gas Operator | Aug 2022 |
| 756 | Ultramar Oil & Gas LTD | Houston, TX 77060 | Oil & Gas Operator | Jul 1995 |
| 757 | Underwood Oil And Gas LLC | Chandler, OK 74834-1414 | Oil & Gas Operator | Mar 2025 |
| 758 | Union Valley Petroleum Corporation | Enid, OK 73701 | Oil & Gas Operator | Mar 2025 |
| 759 | United Energy & Expl Inc | Ada, OK 74821-2449 | Oil & Gas Operator | Feb 2025 |
| 760 | United Energy & Exploration LLC | Ada, OK 74821 | Oil & Gas Operator | Feb 2025 |
| 761 | Vaca Operating Company LLC | Pacific PLSDS, CA 90272 | Oil & Gas Operator | Aug 2017 |
| 762 | Valancy Operating LLC | Goldsby, OK 73093 | Oil & Gas Operator | Mar 2025 |
| 763 | Valar Petroleum Inc | Houston, TX 77069 | Oil & Gas Operator | May 2006 |
| 764 | Van Horn Oil & Gas Inc | Tulsa, OK 74170 | Oil & Gas Operator | Nov 1998 |
| 765 | Vaughan Otto M | | Oil & Gas Operator | Apr 2014 |
| 766 | Vaughan Production Company, Inc. | Norman, OK 73072 | Oil & Gas Operator | Sep 2014 |
| 767 | Veenker Resources, Inc. | Oklahoma City, OK 73113 | Oil & Gas Operator | Mar 2025 |
| 768 | Ventura Energy Services LLC | Tulsa, OK 74136-5108 | Oil & Gas Operator | Mar 2020 |
| 769 | Victory Petroleum Inc | Tulsa, OK 74170-0354 | Oil & Gas Operator | May 2013 |
| 770 | Viersen & Cochran Drilling Company | | Oil & Gas Operator | May 2015 |
| 771 | Vitol Inc. | Houston, TX 77098 | Oil & Gas Operator | Sep 2023 |
| 772 | Wagner Oil Company | Fort Worth, TX 76102 | Oil & Gas Operator | May 2025 |
| 773 | Walker Corporation (The) | Oklahoma City, OK 73156 | Oil & Gas Operator | May 2006 |
| 774 | Wallace Oil & Gas Inc | Oklahoma City, OK 73156 | Oil & Gas Operator | May 2025 |
| 775 | Walsh Jr F Howard | Fort Worth, TX 76102-4773 | Oil & Gas Operator | Feb 2025 |
| 776 | Ward Kelly | Drumright, OK 74030-5661 | Oil & Gas Operator | Feb 2015 |
| 777 | Waterford Energy Inc | Oklahoma City, OK 73102 | Oil & Gas Operator | Nov 1998 |
| 778 | Watkins J L | Henryetta, OK 74437 | Oil & Gas Operator | Mar 2025 |
| 779 | Wellco Energy Inc | Harrah, OK 73045 | Oil & Gas Operator | Feb 2025 |
| 780 | Wenexco, Inc. | Streetman, TX 75859 | Oil & Gas Operator | May 2025 |
| 781 | WFD Oil Corporation | Edmond, OK 73012 | Oil & Gas Operator | Mar 2025 |
| 782 | Wheeler Richard Jr | Oklahoma City, OK 73112-8857 | Oil & Gas Operator | Mar 2005 |
| 783 | White Monty & Terry Production | Paden, OK 74860 | Oil & Gas Operator | May 2013 |
| 784 | White Operating Company | Oklahoma City, OK 73159-7136 | Oil & Gas Operator | Mar 2025 |
| 785 | White Star Petroleum LLC | Oklahoma City, OK 73116-7906 | Oil & Gas Operator | Feb 2025 |
| 786 | Whitley Oil & Gas Inc | Owasso, OK 74055 | Oil & Gas Operator | Jun 2009 |
| 787 | Wil-MC Oil Corporation The | Irving, TX 75015-2510 | Oil & Gas Operator | Mar 1999 |
| 788 | Wildhorse Oil & Gas Corporation | Ardmore, OK 73402 | Oil & Gas Operator | May 2019 |
| 789 | Wilkins L L E & O Company | Shawnee, OK 74801 | Oil & Gas Operator | Aug 2018 |
| 790 | Williams, Clayton Energy, Inc. | Houston, TX 77070 | Oil & Gas Operator | May 2025 |
| 791 | Wilshire Oil LLC | Oklahoma City, OK 73116 | Oil & Gas Operator | Feb 2025 |
| 792 | Winzeler Oil Company | Oklahoma City, OK 73112 | Oil & Gas Operator | May 2013 |
| 793 | Witty Thomas E | Enid, OK 73703 | Oil & Gas Operator | Mar 2008 |
| 794 | Worthy George Disposal Inc | Cushing, OK 74023-9523 | Oil Operator | Jan 2001 |
| 795 | Xanadu Exploration Company | Broken Arrow, OK 74014 | Oil & Gas Operator | Mar 2025 |
| 796 | Xutapa Properties LLC | | Oil & Gas Operator | Feb 2025 |
| 797 | Yarhola Production Company | Drumright, OK 74030 | Oil & Gas Operator | Mar 2025 |
| 798 | Yegen E C | Casper, WY 82604 | Oil & Gas Operator | Mar 2015 |
| 799 | Young Z Joe | Cement, OK 73017-0600 | Oil & Gas Operator | Mar 2015 |
| 800 | Young, John H., Inc. | Houston, TX 77027 | Oil & Gas Operator | May 2025 |