| 701 | Texaco Inc | Kingfisher, OK 73750 | Oil & Gas Operator | Dec 2017 |
| 702 | Texaco Oils, Inc. | Tulsa, OK 74102-2420 | Oil & Gas Operator | Jan 2003 |
| 703 | Texas Oil & Gas Corporation | Dallas, TX 75201 | Oil & Gas Operator | Feb 2001 |
| 704 | Texas Southwest Gas LLC | Tulsa, OK 74121 | Oil & Gas Operator | Oct 2022 |
| 705 | Texla Energy Products LLC | Houston, TX 77002 | Oil Operator | Sep 2020 |
| 706 | The Warren Corporation | Oklahoma City, OK 73118 | Oil & Gas Operator | Jan 2016 |
| 707 | Thompson, Joe L., Inc. | Oklahoma City, OK 73132 | Oil & Gas Operator | Oct 2005 |
| 708 | THR Oil | Konawa, OK 74849 | Oil & Gas Operator | Jan 2014 |
| 709 | Tide West Oil Company | Tulsa, OK 74136 | Oil & Gas Operator | Mar 2021 |
| 710 | Tidemark Exploration | Tulsa, OK 74170 | Oil & Gas Operator | May 2005 |
| 711 | TK Drilling Corp. | Tulsa, OK 74133 | Oil & Gas Operator | Dec 2024 |
| 712 | TLM Resources Inc | Enid, OK 73706-0641 | Gas Operator | Mar 2015 |
| 713 | Toklan Oil And Gas Corporation | Tulsa, OK 74136 | Oil & Gas Operator | Jan 2025 |
| 714 | Torch Operating Company | Houston, TX 77010 | Oil & Gas Operator | Mar 2015 |
| 715 | Total Minatome Corporation | Houston, TX 77210 | Oil & Gas Operator | Dec 1998 |
| 716 | Totalfinaelf E&P USA Inc | Houston, TX 77024 | Oil & Gas Operator | Jul 2007 |
| 717 | Trail Ridge Energy Partners, LLC | Grapevine, TX 76051 | Oil & Gas Operator | Jan 2025 |
| 718 | Trek Resources, Inc. | Dallas, TX 75207 | Oil & Gas Operator | Mar 2025 |
| 719 | Trenchco Inc | Shawnee, OK 74802-3577 | Oil & Gas Operator | Apr 2015 |
| 720 | Tri-Ex Petroleum, L.P. | Amarillo, TX 79101 | Oil & Gas Operator | Jan 2013 |
| 721 | Triexco Inc | Tulsa, OK 74119 | Oil & Gas Operator | Dec 2012 |
| 722 | Triplett Larry W | Oklahoma City, OK 73112-5325 | Oil & Gas Operator | Mar 2015 |
| 723 | Tripower Resources, Inc. | Ardmore, OK 73402 | Oil & Gas Operator | Mar 2020 |
| 724 | Turnbow John R Company | Tulsa, OK 74120-2420 | Oil & Gas Operator | Aug 2006 |
| 725 | Turner Resources Inc | Hennessey, OK 73742 | Oil & Gas Operator | Dec 2024 |
| 726 | Twenty/Twenty Oil & Gas Inc | Hennessey, OK 73742 | Oil & Gas Operator | Jan 2025 |
| 727 | Txo Production Corp. | Ganado, TX 77962 | Oil & Gas Operator | Aug 2022 |
| 728 | Txok Energy Resources Company | Tulsa, OK 74172-0140 | Oil & Gas Operator | Feb 2017 |
| 729 | Umc Petroleum Corporation | Houston, TX 77002 | Oil & Gas Operator | Mar 2015 |
| 730 | Union Oil Co Of California | Midland, TX 79706 | Oil & Gas Operator | Jan 2022 |
| 731 | Union Texas Petroleum Corp. | Houston, TX 77252-2120 | Oil & Gas Operator | Dec 2014 |
| 732 | Union Valley Petroleum Corporation | Enid, OK 73701 | Oil & Gas Operator | Jan 2025 |
| 733 | Unit Petroleum Company | Tulsa, OK 74170 | Oil & Gas Operator | Mar 2025 |
| 734 | United Energy Trading LLC | Tulsa, OK 74133 | Gas Operator | Feb 2015 |
| 735 | United Production Company LLC | Edmond, OK 73003 | Oil & Gas Operator | Jan 2025 |
| 736 | Urban Oil & Gas Group, LLC | Plano, TX 75074 | Oil & Gas Operator | Mar 2025 |
| 737 | Valence Operating Company | Kingwood, TX 77339 | Oil & Gas Operator | Mar 2025 |
| 738 | Valero Marketing & Supply Co | San Antonio, TX 78269-6000 | Oil & Gas Operator | Sep 2023 |
| 739 | Validus Energy II Midcon LLC | Denver, CO 80202 | Oil & Gas Operator | Mar 2025 |
| 740 | Valpoint Operating, LLC | Amarillo, TX 79101 | Oil & Gas Operator | Mar 2025 |
| 741 | Van Horn Oil Company | Ada, OK 74820 | Oil & Gas Operator | Oct 1999 |
| 742 | Vantage Point Operating Co | Houston, TX 77057 | Oil & Gas Operator | Dec 2014 |
| 743 | Vaquero Resources, LLC | Edmond, OK 73034 | Oil & Gas Operator | Jan 2025 |
| 744 | Vastar Resources Inc | Houston, TX 77253 | Oil & Gas Operator | Nov 2024 |
| 745 | Veenker Resources, Inc. | Oklahoma City, OK 73113 | Oil & Gas Operator | Jan 2025 |
| 746 | Vega Energy Company | Nichols Hill, OK 73116 | Oil & Gas Operator | Sep 2015 |
| 747 | Ventana Exploration And Production II LLC | Oklahoma City, OK 73134-2519 | Oil & Gas Operator | Jan 2025 |
| 748 | Viersen & Cochran Drilling Company | | Oil & Gas Operator | May 2015 |
| 749 | Vintage Gas Inc | Tulsa, OK 74119-1029 | Oil & Gas Operator | Jun 2007 |
| 750 | Vintage Petroleum, Inc. | Houston, TX 77046 | Oil & Gas Operator | Dec 2024 |
| 751 | Vitol Inc | Houston, TX 77002 | Oil & Gas Operator | Sep 2023 |
| 752 | W S Crude Oil Purchasing Inc | Oklahoma City, OK 73129-7613 | Oil & Gas Operator | May 2008 |
| 753 | Walker Keith F | Ardmore, OK 73401 | Oil & Gas Operator | Jan 2019 |
| 754 | Wallace Oil & Gas Inc | Oklahoma City, OK 73156 | Oil & Gas Operator | Mar 2025 |
| 755 | Ward Gas Marketing Inc | Enid, OK 73702 | Oil & Gas Operator | Sep 2011 |
| 756 | Ward Petroleum Corporation | Enid, OK 73702 | Oil & Gas Operator | Dec 2024 |
| 757 | Washita Oil And Gas, L.L.C. | Tulsa, OK 74136 | Oil & Gas Operator | Mar 2015 |
| 758 | Weatherly Oil & Gas, LLC | Dallas, TX 75206 | Oil & Gas Operator | Mar 2025 |
| 759 | Weinkauf Petroleum, Inc. | Tulsa, OK 74136 | Oil & Gas Operator | Jan 2025 |
| 760 | Wessely Energy Company | Dallas, TX 75206 | Oil & Gas Operator | May 2001 |
| 761 | Westamerica Corporation | Dewey, OK 74029-0040 | Oil & Gas Operator | Aug 1999 |
| 762 | Western Gas Resources Inc | Denver, CO 80202-1955 | Oil & Gas Operator | Dec 2007 |
| 763 | Weststar Oil & Gas Inc | Edmond, OK 73013 | Oil & Gas Operator | Jan 2025 |
| 764 | Wheeler Energy Co. | Tulsa, OK 74101 | Oil & Gas Operator | Dec 2024 |
| 765 | Wheeler Energy, LLC | Tulsa, OK 74101 | Oil & Gas Operator | Mar 2025 |
| 766 | White Rock Oil & Gas, LLC | Plano, TX 75024 | Oil & Gas Operator | Mar 2025 |
| 767 | White Star Petroleum II LLC | Oklahoma City, OK 73113-1360 | Oil & Gas Operator | Dec 2024 |
| 768 | White Star Petroleum LLC | Oklahoma City, OK 73116-7906 | Oil & Gas Operator | Dec 2024 |
| 769 | Whiting Oil And Gas Corporation | Houston, TX 77002 | Oil & Gas Operator | Mar 2025 |
| 770 | Whitley Oil & Gas Inc | Owasso, OK 74055 | Oil & Gas Operator | Jun 2009 |
| 771 | Williford Energy Company | Tulsa, OK 74135 | Oil & Gas Operator | Mar 2025 |
| 772 | Williford Resources LLC | Tulsa, OK 74136-1020 | Oil & Gas Operator | Jan 2025 |
| 773 | Wilshire Enterprises Inc | Oklahoma City, OK 73102 | Oil & Gas Operator | Mar 2015 |
| 774 | Windsor Energy Group LLC | Oklahoma City, OK 73118 | Oil & Gas Operator | Aug 2021 |
| 775 | WLW Oil & Gas LLC | Kingfisher, OK 73750 | Oil & Gas Operator | Jan 2025 |
| 776 | WN Operating Inc | Okmulgee, OK 74447 | Oil & Gas Operator | Dec 2024 |
| 777 | Wolverine Exploration Company | Houston, TX 77002 | Oil & Gas Operator | May 2019 |
| 778 | Woods Petroleum Corporation | Oklahoma City, OK 73112 | Oil & Gas Operator | Mar 2015 |
| 779 | WR Oil & Gas LLC | Plano, TX 75024-3523 | Oil & Gas Operator | Jan 2025 |
| 780 | Wynn-Crosby Operating LP | Dallas, TX 75201 | Oil & Gas Operator | Dec 2024 |
| 781 | Xanadu Exploration Company | Broken Arrow, OK 74014 | Oil & Gas Operator | Jan 2025 |
| 782 | Xeric Oil & Gas Corporation | Midland, TX 79702 | Oil & Gas Operator | Apr 2014 |
| 783 | Xog Operating LLC | Midland, TX 79702 | Oil & Gas Operator | Mar 2025 |
| 784 | XTO Energy Inc. | Spring, TX 77389 | Oil & Gas Operator | Mar 2025 |
| 785 | Yale Oil Association, Inc. | Oklahoma City, OK 73105 | Oil & Gas Operator | Jan 2025 |
| 786 | Yarhola Production Company | Drumright, OK 74030 | Oil & Gas Operator | Dec 2024 |
| 787 | Zephyr Operating Co LLC | Oklahoma City, OK 73118-6035 | Oil & Gas Operator | Jan 2025 |
| 788 | Zephyr SWD LLC | Oklahoma City, OK 73118-6035 | Oil Operator | Dec 2024 |
| 789 | ZP Disposal Systems LLC | Kingfisher, OK 73750 | Oil Operator | Dec 2024 |