| 801 | W S Crude Oil Purchasing Inc | Oklahoma City, OK 73129-7613 | Oil & Gas Operator | May 2008 |
| 802 | Waddell Norman | Seminole, OK 74868-1244 | Oil & Gas Operator | Nov 1998 |
| 803 | Wagner Oil Company | Fort Worth, TX 76102 | Oil & Gas Operator | Jul 2026 |
| 804 | Walker Keith F | Ardmore, OK 73401 | Oil & Gas Operator | Jan 2019 |
| 805 | Ward Oil Co. | Kilgore, TX 75663 | Oil & Gas Operator | Jul 2026 |
| 806 | Ward Petroleum Corporation | Enid, OK 73702 | Oil & Gas Operator | Apr 2026 |
| 807 | Ware Jimmy M | Seminole, OK 74868 | Oil & Gas Operator | Nov 1998 |
| 808 | Warren American Oil Company LLC | Tulsa, OK 74147 | Oil & Gas Operator | Jul 2026 |
| 809 | Watkins J L | Henryetta, OK 74437 | Oil & Gas Operator | May 2026 |
| 810 | Webb Jess Oil Producer | | Oil Operator | Sep 2014 |
| 811 | Welch Family Trust | Ada, OK 74820-9643 | Oil & Gas Operator | Apr 2015 |
| 812 | Wentworth Operating Company | Oklahoma City, OK 73162-1863 | Oil & Gas Operator | May 2026 |
| 813 | West Operating Company | Seminole, OK 74868-3851 | Oil & Gas Operator | Mar 2015 |
| 814 | Westamerica Corporation | Dewey, OK 74029-0040 | Oil & Gas Operator | Aug 1999 |
| 815 | Weststar Oil & Gas Inc | Edmond, OK 73013 | Oil & Gas Operator | May 2026 |
| 816 | Wheeler Richard Jr | Oklahoma City, OK 73112-8857 | Oil & Gas Operator | Mar 2005 |
| 817 | White Alton L Trust | Nowata, OK 74048 | Oil & Gas Operator | Aug 2013 |
| 818 | White N J & White J B | Paden, OK 74860-0114 | Oil Operator | Aug 2013 |
| 819 | Whiting Oil And Gas Corporation | Houston, TX 77002 | Oil & Gas Operator | Jul 2026 |
| 820 | Whitley Robert L | Saint Louis, OK 74866-0004 | Oil & Gas Operator | Sep 2014 |
| 821 | Wilcox Oil Company | Rule, TX 79547 | Oil & Gas Operator | Aug 2008 |
| 822 | Williams Dale | Konawa, OK 74849-9211 | Oil Operator | Apr 2026 |
| 823 | Williams Reid Oil Co | Dallas, TX 75234 | Oil & Gas Operator | Mar 2026 |
| 824 | Wilshire Enterprises Inc | Oklahoma City, OK 73102 | Oil & Gas Operator | Mar 2015 |
| 825 | Windsor Energy Group LLC | Oklahoma City, OK 73118 | Oil & Gas Operator | Aug 2021 |
| 826 | Wise Oil & Gas Company LLC | Shawnee, OK 74801-8507 | Oil & Gas Operator | Feb 2024 |
| 827 | WM Energy LLC | Asher, OK 74826 | Oil & Gas Operator | Apr 2026 |
| 828 | Woodland Operating LLC | Rio VIsta, TX 76093-0010 | Oil & Gas Operator | Jan 2026 |
| 829 | Wright Operating, Inc. | Denison, TX 75020 | Oil & Gas Operator | Jul 2026 |
| 830 | Wynn-Crosby Operating LP | Dallas, TX 75201 | Oil & Gas Operator | Apr 2026 |
| 831 | Xanadu Exploration Company | Broken Arrow, OK 74014 | Oil & Gas Operator | May 2026 |
| 832 | Yale Oil Association, Inc. | Oklahoma City, OK 73105 | Oil & Gas Operator | May 2026 |
| 833 | Yarhola Production Company | Drumright, OK 74030 | Oil & Gas Operator | Apr 2026 |
| 834 | Yerby Bill | Ada, OK 74820-5404 | Oil Operator | Jan 2012 |
| 835 | Younger Enterprises Inc | Ada, OK 74821-1882 | Oil Operator | Jan 2003 |
| 836 | Zafar Oil & Gas, Inc. | Oklahoma City, OK 73132 | Oil Operator | Aug 2013 |
| 837 | Zzron Inc. | Midland, TX 79704 | Oil & Gas Operator | Aug 2003 |