| 701 | Texaco Inc | Kingfisher, OK 73750 | Oil & Gas Operator | Dec 2017 |
| 702 | Texcel Exploration, Inc. | Colorado SPGS, CO 80960 | Oil & Gas Operator | Feb 2026 |
| 703 | Texocan Minerals Inc | Tulsa, OK 74147 | Oil & Gas Operator | Dec 2000 |
| 704 | The Calvert Company | Oklahoma City, OK 73154-1589 | Oil & Gas Operator | Dec 2021 |
| 705 | Three Sands Oil Inc | Perry, OK 73077 | Oil & Gas Operator | May 2023 |
| 706 | Tilley Oil & Gas, Inc. | Oklahoma City, OK 73172 | Oil & Gas Operator | Feb 2026 |
| 707 | Toklan Oil And Gas Corporation | Tulsa, OK 74136 | Oil & Gas Operator | Dec 2025 |
| 708 | Toklan Oil Corporation | Tulsa, OK 74103 | Oil & Gas Operator | Mar 2015 |
| 709 | Tony'S Disposal Service Inc | Yale, OK 74085 | Oil Operator | Aug 1997 |
| 710 | Tonys Crude Oil Reclaiming Plant Inc | | Oil Operator | Nov 2025 |
| 711 | Topsail Secondary Recovery LLC | Edmond, OK 73013 | Oil & Gas Operator | Feb 2025 |
| 712 | Totalfinaelf E&P USA Inc | Houston, TX 77024 | Oil & Gas Operator | Jul 2007 |
| 713 | Trail Ridge Energy Partners, LLC | Grapevine, TX 76051 | Oil & Gas Operator | Dec 2025 |
| 714 | Trepel Petroleum Exploration & | | Oil & Gas Operator | Apr 2014 |
| 715 | Trey Resources Inc. | Midland, TX 79710 | Oil & Gas Operator | Nov 2025 |
| 716 | Tri-Unity Inc | Sand Springs, OK 74063-4401 | Oil & Gas Operator | Jun 2009 |
| 717 | Triple L Management Co Inc | Edmond, OK 73025-2908 | Oil & Gas Operator | Apr 2018 |
| 718 | Triple W Oil Inc | Chandler, OK 74834-0546 | Oil & Gas Operator | May 2013 |
| 719 | Tripower Resources LLC | Ardmore, OK 73402 | Oil & Gas Operator | Feb 2026 |
| 720 | Tripower Resources, Inc. | Ardmore, OK 73402 | Oil & Gas Operator | Mar 2020 |
| 721 | Trivestco Energy Company | Ponca City, OK 74601 | Oil & Gas Operator | Dec 2025 |
| 722 | Truevine Operating LLC | Ada, OK 74821-1422 | Oil & Gas Operator | Nov 2025 |
| 723 | Tulsa Energy Partners LLC | Tulsa, OK 74103-4461 | Oil & Gas Operator | Dec 2025 |
| 724 | Turner John O | Drumright, OK 74030-1216 | Oil & Gas Operator | Feb 1998 |
| 725 | Turner Oil Company | Yale, OK 74085-0234 | Oil & Gas Operator | Nov 2014 |
| 726 | Tuscany Operating LLC | Oklahoma City, OK 73106 | Oil & Gas Operator | Sep 2014 |
| 727 | Twenty/Twenty Oil & Gas Inc | Hennessey, OK 73742 | Oil & Gas Operator | Dec 2025 |
| 728 | Two Pines | Drumright, OK 74030-5502 | Oil & Gas Operator | Feb 2012 |
| 729 | Unbridled Resources, LLC | Oklahoma City, OK 73102 | Oil & Gas Operator | Feb 2026 |
| 730 | Unit Petroleum Company | Tulsa, OK 74170 | Oil & Gas Operator | Feb 2026 |
| 731 | United Oil Corporation | Denver, CO 80202-3813 | Oil & Gas Operator | Nov 2025 |
| 732 | United Production Company LLC | Edmond, OK 73003 | Oil & Gas Operator | Dec 2025 |
| 733 | Universal Fuels Company | | Oil & Gas Operator | Oct 1993 |
| 734 | Van Horn Oil & Gas Inc | Tulsa, OK 74170 | Oil & Gas Operator | Nov 1998 |
| 735 | Vancol Oil Co Inc | Ponca City, OK 74602-0030 | Oil & Gas Operator | May 2018 |
| 736 | Veenker Resources Inc | Oklahoma City, OK 73113 | Oil & Gas Operator | Dec 2025 |
| 737 | Ventura Energy Services LLC | Tulsa, OK 74136-5108 | Oil & Gas Operator | Mar 2020 |
| 738 | Victorem Energy LLC | Oklahoma City, OK 73118 | Oil & Gas Operator | Nov 2025 |
| 739 | Viersen & Cochran Drilling Company | | Oil & Gas Operator | May 2015 |
| 740 | Vitol Inc. | Houston, TX 77098 | Oil & Gas Operator | Sep 2023 |
| 741 | Vitruvian Exploration LLC | The Woodlands, TX 77380 | Oil & Gas Operator | May 2016 |
| 742 | W F D Oil Corp. | Edmond, OK 73012 | Oil & Gas Operator | Dec 2025 |
| 743 | Walker Keith F | Ardmore, OK 73401 | Oil & Gas Operator | Jan 2019 |
| 744 | Warrior Exploration LLC | Sapulpa, OK 74067-1912 | Oil & Gas Operator | Aug 2025 |
| 745 | Wave Energy LLC | Jennings, OK 74038 | Oil Operator | Dec 2025 |
| 746 | Welch Family Trust | Ada, OK 74820-9643 | Oil & Gas Operator | Apr 2015 |
| 747 | Wellco Energy Inc | Harrah, OK 73045 | Oil & Gas Operator | Nov 2025 |
| 748 | Wells Edward K | Sapulpa, OK 74066-4243 | Oil & Gas Operator | Jun 2004 |
| 749 | Wessel Oil And Gas | Cushing, OK 74023-9580 | Oil & Gas Operator | Mar 2015 |
| 750 | Western Mountain Resources LLC | Cogan Station, PA 17728 | Oil & Gas Operator | Nov 2025 |
| 751 | Western Natl Resource Expl LLC | Oklahoma City, OK 73154-0755 | Oil & Gas Operator | Mar 2015 |
| 752 | Western Natural Resources Inc | Oklahoma City, OK 73116 | Oil & Gas Operator | Apr 2015 |
| 753 | Western Oil Company | Midland, TX 79702 | Oil & Gas Operator | Jul 2014 |
| 754 | Weststar Oil & Gas Inc | Edmond, OK 73013 | Oil & Gas Operator | Dec 2025 |
| 755 | Westwood Energy, Inc. | Abilene, TX 79608 | Oil & Gas Operator | May 2013 |
| 756 | Wheatley Equipment | Morrison, OK 73061-9345 | Oil & Gas Operator | Jul 2012 |
| 757 | White Star Petroleum LLC | Oklahoma City, OK 73116-7906 | Oil & Gas Operator | Nov 2025 |
| 758 | Wil-MC Oil Corporation The | Irving, TX 75015-2510 | Oil & Gas Operator | Mar 1999 |
| 759 | Wilcox Pipe & Supply Co | Oklahoma City, OK 73189 | Oil & Gas Operator | May 2006 |
| 760 | Williams Refractories Inc | Cushing, OK 74023 | Oil & Gas Operator | Feb 2015 |
| 761 | Williams Roger F | Tulsa, OK 74152-0951 | Oil & Gas Operator | May 2013 |
| 762 | Wilshire Enterprises Inc | Oklahoma City, OK 73102 | Oil & Gas Operator | Mar 2015 |
| 763 | Winney Construction Company | Forks, WA 98331-0801 | Oil & Gas Operator | Jan 2013 |
| 764 | WN Operating Inc | Okmulgee, OK 74447 | Oil & Gas Operator | Nov 2025 |
| 765 | Wood Fay C Estate | Enid, OK 73703 | Oil & Gas Operator | Jun 2013 |
| 766 | World Oil | | Oil & Gas Operator | Nov 1998 |
| 767 | Xanadu Exploration Company | Broken Arrow, OK 74014 | Oil & Gas Operator | Dec 2025 |
| 768 | Yale Oil Association, Inc. | Oklahoma City, OK 73105 | Oil & Gas Operator | Dec 2025 |
| 769 | Yarhola Production Company | Drumright, OK 74030 | Oil & Gas Operator | Dec 2025 |
| 770 | Zephyr Operating Co LLC | Oklahoma City, OK 73118-6035 | Oil & Gas Operator | Nov 2025 |
| 771 | Zollinger Veldon Inc | Crescent, OK 73028-9280 | Oil & Gas Operator | Nov 2018 |