| 701 | Umc Petroleum Corporation | Houston, TX 77002 | Oil & Gas Operator | Mar 2015 |
| 702 | Union Oil Co Of California | Midland, TX 79706 | Oil & Gas Operator | Jan 2022 |
| 703 | United Oil Corporation | Denver, CO 80202-3813 | Oil & Gas Operator | Jan 2024 |
| 704 | Valero Marketing & Supply Co | San Antonio, TX 78269-6000 | Oil & Gas Operator | Sep 2023 |
| 705 | Vancol Oil Co Inc | Ponca City, OK 74602-0030 | Oil & Gas Operator | May 2018 |
| 706 | Vastar Resources Inc | Houston, TX 77253 | Oil & Gas Operator | Dec 2023 |
| 707 | Veenker Resources, Inc. | Oklahoma City, OK 73113 | Oil & Gas Operator | Feb 2024 |
| 708 | Vi-Roi Oil Company | Duncan, OK 73533 | Oil & Gas Operator | Jun 2004 |
| 709 | Vicorp Energy Inc | Denver, CO 80202-4927 | Oil & Gas Operator | Mar 2001 |
| 710 | Vintage Petroleum, Inc. | Houston, TX 77046 | Oil & Gas Operator | Jan 2024 |
| 711 | Vitol Inc | Houston, TX 77098 | Oil & Gas Operator | Sep 2023 |
| 712 | W C T Operating LLC | Oklahoma City, OK 73101-0678 | Oil & Gas Operator | Oct 2023 |
| 713 | W S Crude Oil Purchasing Inc | Oklahoma City, OK 73129-7613 | Oil & Gas Operator | May 2008 |
| 714 | Wabash Energy Corporation | Lawrenceville, IL 62439 | Oil & Gas Operator | Dec 2009 |
| 715 | Waggoner Oil & Gas Corp | Enid, OK 73703-1152 | Oil & Gas Operator | Feb 2024 |
| 716 | Wagner & Brown LP | Midland, TX 79702-1714 | Oil & Gas Operator | Aug 2022 |
| 717 | Walker Jr J C | | Oil & Gas Operator | Oct 1996 |
| 718 | Walker Keith F | Ardmore, OK 73401 | Oil & Gas Operator | Jan 2019 |
| 719 | Walsh & Watts Inc | Aledo, TX 76008 | Oil & Gas Operator | Apr 2024 |
| 720 | Walter Oil & Gas Corporation | Houston, TX 77002 | Oil & Gas Operator | Apr 2024 |
| 721 | Walters Oil Company | Elmore City, OK 73433-9505 | Oil & Gas Operator | Feb 2024 |
| 722 | Ward Petroleum Corporation | Enid, OK 73702 | Oil & Gas Operator | Jan 2024 |
| 723 | Webb John L Estate A Partner | Wichita Falls, TX 76302 | Oil Operator | May 2008 |
| 724 | Weimer & Fitzhugh | Tulsa, OK 74103-4102 | Oil & Gas Operator | Dec 1993 |
| 725 | West Fox SWD LLC | | Oil Operator | Feb 2024 |
| 726 | Western Gas Resources Inc | Denver, CO 80202-1955 | Oil & Gas Operator | Dec 2007 |
| 727 | Western Oil And Gas Development Corp | Oklahoma City, OK 73103-3735 | Oil & Gas Operator | Feb 2024 |
| 728 | Weststar Oil & Gas Inc | Edmond, OK 73013 | Oil & Gas Operator | Feb 2024 |
| 729 | WFW Production Company, Inc. | Muenster, TX 76252 | Oil & Gas Operator | Apr 2024 |
| 730 | Whitaker Raymond | Paul Valley, OK 73075-1041 | Oil & Gas Operator | May 2007 |
| 731 | Whitco Operating Company | Duncan, OK 73534-1936 | Oil & Gas Operator | Oct 2009 |
| 732 | White'S Well Service | Healdton, OK 73438-4160 | Oil & Gas Operator | Feb 2024 |
| 733 | Whiteman Industries, Inc. | Oklahoma City, OK 73101 | Oil & Gas Operator | Jan 2024 |
| 734 | Whiting Oil And Gas Corporation | Houston, TX 77002 | Oil & Gas Operator | Apr 2024 |
| 735 | Whitmar Exploration Company | Denver, CO 80202 | Oil & Gas Operator | Jan 2024 |
| 736 | Whitmar Natural Resources Co | Tulsa, OK 74136-9998 | Oil & Gas Operator | Jun 2004 |
| 737 | Whitmar Operating Company | Tulsa, OK 74103-3515 | Oil & Gas Operator | Apr 2009 |
| 738 | Wible Limited Liability Co | Oklahoma City, OK 73116-7326 | Oil Operator | Jan 2024 |
| 739 | Wila Inc | | Oil Operator | Dec 2000 |
| 740 | Wild Outdoors Oil LLC | | Oil & Gas Operator | Feb 2024 |
| 741 | Wildhorse Oil & Gas Corporation | Ardmore, OK 73402 | Oil & Gas Operator | May 2019 |
| 742 | Wildhorse Operating Company | Ardmore, OK 73402 | Oil & Gas Operator | Apr 2024 |
| 743 | Williams Jack W | Ardmore, OK 73401-4726 | Oil Operator | Feb 2017 |
| 744 | Williams Reid Oil Co | Dallas, TX 75234 | Oil & Gas Operator | Jan 2024 |
| 745 | Williams Royce S | Healdton, OK 73438-0306 | Oil & Gas Operator | Apr 2014 |
| 746 | Williford Energy Company | Tulsa, OK 74135 | Oil & Gas Operator | Apr 2024 |
| 747 | Williford Petroleum LLC | Green CV SPGS, FL 32043 | Oil & Gas Operator | Apr 2024 |
| 748 | Williford Resources LLC | Tulsa, OK 74136-1020 | Oil & Gas Operator | Feb 2024 |
| 749 | Wilson Salt Water Disposal Inc | | Oil Operator | Aug 2019 |
| 750 | Wilson Well Service | Loco, OK 73442-0114 | Oil & Gas Operator | Mar 2018 |
| 751 | Wind River Resources Inc | Tulsa, OK 74136-6381 | Oil & Gas Operator | Jun 2010 |
| 752 | Windsor Energy Group LLC | Oklahoma City, OK 73118 | Oil & Gas Operator | Aug 2021 |
| 753 | Windward Development LLC | Tulsa, OK 74136-7007 | Oil & Gas Operator | Jul 2019 |
| 754 | Wishbone Oil & Gas | Noble, OK 73068 | Oil & Gas Operator | Mar 2007 |
| 755 | WLW Oil & Gas LLC | Kingfisher, OK 73750-1102 | Oil & Gas Operator | Feb 2024 |
| 756 | Woodward Iodine Corporation | Woodward, OK 73802-1245 | Oil & Gas Operator | Feb 2024 |
| 757 | Wright Richard | Ratliff City, OK 73481-0155 | Oil & Gas Operator | Mar 2015 |
| 758 | Wylie Henry C | Ratliff City, OK 73481-0102 | Oil Operator | May 2020 |
| 759 | XTO Energy Inc. | Spring, TX 77389 | Oil & Gas Operator | Apr 2024 |
| 760 | Yale Oil Association, Inc. | Oklahoma City, OK 73105 | Oil & Gas Operator | Apr 2024 |
| 761 | Zim Energy Corporation | Tulsa, OK 74153 | Oil & Gas Operator | Jan 1998 |
| 762 | Zimet Brothers Inc | | Oil Operator | Mar 2008 |
| 763 | ZP Disposal Systems LLC | Kingfisher, OK 73750-7084 | Oil Operator | Feb 2024 |
| 764 | Zzron Inc. | Midland, TX 79704 | Oil & Gas Operator | Aug 2003 |