| 901 | Weststar Oil & Gas Inc | Edmond, OK 73013 | Oil & Gas Operator | Oct 2024 |
| 902 | Wetzel Producing Company | Duncan, OK 73533-4602 | Oil & Gas Operator | Sep 2024 |
| 903 | Whitco Operating Company | Duncan, OK 73534-1936 | Oil & Gas Operator | Oct 2009 |
| 904 | White Goat Resources LLC | Yukon, OK 73099 | Oil & Gas Operator | Oct 2024 |
| 905 | White Oak Production Company | Conway, AR 72034 | Oil & Gas Operator | Sep 2005 |
| 906 | Whiting Oil And Gas Corporation | Houston, TX 77002 | Oil & Gas Operator | Dec 2024 |
| 907 | Wible Limited Liability Co | Edmond, OK 73012 | Oil Operator | Sep 2024 |
| 908 | Wil-Mar Operations | Duncan, OK 73534-1566 | Oil & Gas Operator | Oct 2016 |
| 909 | Wil-MC Oil Corporation The | Irving, TX 75015-2510 | Oil & Gas Operator | Mar 1999 |
| 910 | Wild Horse Tank Trucks Inc | Duncan, OK 73533-7667 | Oil Operator | Oct 2016 |
| 911 | Wild Outdoors Oil LLC | Duncan, OK 73533 | Oil & Gas Operator | Oct 2024 |
| 912 | Wildhorse Oil & Gas Corporation | Ardmore, OK 73402 | Oil & Gas Operator | May 2019 |
| 913 | Wildhorse Operating Company | Ardmore, OK 73402 | Oil & Gas Operator | Dec 2024 |
| 914 | Wildwood Operating LLC | Hennessey, OK 73742-7711 | Oil & Gas Operator | Sep 2024 |
| 915 | Wilkins L L E & O Company | Shawnee, OK 74801 | Oil & Gas Operator | Aug 2018 |
| 916 | Wilkinson George R | St Augustine, FL 32080-5352 | Oil & Gas Operator | Jun 2011 |
| 917 | Wilkinson Oil & Gas LLC | Duncan, OK 73533-2048 | Oil Operator | Sep 2024 |
| 918 | Williams Dale And Dorothy Family Trust | Maud, OK 74854-2011 | Oil & Gas Operator | Sep 2024 |
| 919 | Williams Operating Company LLC | Duncan, OK 73533 | Oil Operator | Sep 2024 |
| 920 | Williams Reid Oil Co | Dallas, TX 75234 | Oil & Gas Operator | Sep 2024 |
| 921 | Williford Energy Company | Tulsa, OK 74135 | Oil & Gas Operator | Dec 2024 |
| 922 | Williford Petroleum LLC | Green CV SPGS, FL 32043 | Oil & Gas Operator | Dec 2024 |
| 923 | Williford Resources LLC | Tulsa, OK 74136-1020 | Oil & Gas Operator | Sep 2024 |
| 924 | Wilson Charles R | Durant, OK 74701-4910 | Oil Operator | Aug 2024 |
| 925 | Wilson Claude And Ila | Loco, OK 73442-9404 | Oil & Gas Operator | Aug 2024 |
| 926 | Wilson Well Service | Loco, OK 73442-0114 | Oil & Gas Operator | Mar 2018 |
| 927 | Wimberley James A | Dallas, TX 75229-6180 | Oil & Gas Operator | Nov 2014 |
| 928 | Wise Oil & Gas Company LLC | Shawnee, OK 74801-8507 | Oil & Gas Operator | Feb 2024 |
| 929 | Wolverine Exploration Company | Houston, TX 77002 | Oil & Gas Operator | May 2019 |
| 930 | Woods Petroleum Corporation | Oklahoma City, OK 73112 | Oil & Gas Operator | Mar 2015 |
| 931 | Wright Richard | Ratliff City, OK 73481-0155 | Oil & Gas Operator | Mar 2015 |
| 932 | Wylie Henry C | Ratliff City, OK 73481-0102 | Oil Operator | May 2020 |
| 933 | Xae Corporation | Norman, OK 73072 | Oil & Gas Operator | Apr 2021 |
| 934 | XTO Energy Inc. | Spring, TX 77389 | Oil & Gas Operator | Dec 2024 |
| 935 | Yale Oil Association, Inc. | Oklahoma City, OK 73105 | Oil & Gas Operator | Oct 2024 |
| 936 | Yarbrough R E | Lago VIsta, TX 78645-0005 | Oil & Gas Operator | Mar 2015 |
| 937 | Young, John H., Inc. | Houston, TX 77027 | Oil & Gas Operator | Dec 2024 |
| 938 | Zafar Oil & Gas, Inc. | Oklahoma City, OK 73132 | Oil Operator | Aug 2013 |
| 939 | Zenergy Inc | Tulsa, OK 74136 | Oil & Gas Operator | Oct 2024 |
| 940 | Zilkha Energy Company | Houston, TX 77046 | Oil & Gas Operator | Oct 2002 |