| 901 | VPR Operating LLC | Austin, TX 78746 | Oil & Gas Operator | Oct 2013 |
| 902 | W C T Operating LLC | Oklahoma City, OK 73134 | Oil & Gas Operator | Oct 2025 |
| 903 | W-N Energy Corp | Tulsa, OK 74121-1468 | Oil & Gas Operator | Nov 1994 |
| 904 | Wagner Oil Company | Fort Worth, TX 76102 | Oil & Gas Operator | Dec 2025 |
| 905 | Walden E F | Ada, OK 74820 | Oil & Gas Operator | Aug 2014 |
| 906 | Walker Keith F | Ardmore, OK 73401 | Oil & Gas Operator | Jan 2019 |
| 907 | Wallace Oil & Gas Inc | Oklahoma City, OK 73156 | Oil & Gas Operator | Dec 2025 |
| 908 | Walsh Jr F Howard | Fort Worth, TX 76102-4773 | Oil & Gas Operator | Sep 2025 |
| 909 | Walsh Jr F Howard Opr Co Inc | Fort Worth, TX 76102-4773 | Oil & Gas Operator | Feb 2016 |
| 910 | Walters Frank | Pernell, OK 73076 | Oil & Gas Operator | Sep 2014 |
| 911 | Walters Oil Company | Elmore City, OK 73433-9505 | Oil & Gas Operator | Nov 2025 |
| 912 | Walters Oil LLC | Elmore City, OK 73433-8637 | Oil Operator | Apr 2020 |
| 913 | Ward Petroleum Corporation | Enid, OK 73702 | Oil & Gas Operator | Oct 2025 |
| 914 | Warren American Oil Company LLC | Tulsa, OK 74147 | Oil & Gas Operator | Dec 2025 |
| 915 | Warren Corporation | Oklahoma City, OK 73118 | Oil & Gas Operator | Jan 2016 |
| 916 | Warwick Associates LC | Oklahoma City, OK 73112 | Oil & Gas Operator | Nov 2025 |
| 917 | Warwick-Jupiter LLC | Oklahoma City, OK 73116 | Oil & Gas Operator | Oct 2025 |
| 918 | Washita Energy Inc | Pauls Valley, OK 73075-0923 | Oil & Gas Operator | Mar 2015 |
| 919 | Weatherly Oil & Gas, LLC | Dallas, TX 75206 | Oil & Gas Operator | Dec 2025 |
| 920 | Webb Donna Delan Dba Petrodudes | Crescent, OK 73028 | Oil & Gas Operator | Oct 2025 |
| 921 | Webb John L Estate A Partner | Wichita Falls, TX 76302 | Oil Operator | May 2008 |
| 922 | Webb Roy C | Davis, OK 73030 | Oil & Gas Operator | Oct 2025 |
| 923 | Webber Wesley | Davis, OK 73030 | Oil & Gas Operator | Oct 2009 |
| 924 | Weimer & Fitzhugh | Tulsa, OK 74103-4102 | Oil & Gas Operator | Dec 1993 |
| 925 | Welch Family Trust | Ada, OK 74820-9643 | Oil & Gas Operator | Apr 2015 |
| 926 | Wellco Energy Inc | Harrah, OK 73045 | Oil & Gas Operator | Oct 2025 |
| 927 | Wellco Production LLC | Purcell, OK 73080-6833 | Oil & Gas Operator | Oct 2025 |
| 928 | Wenexco, Inc. | Streetman, TX 75859 | Oil & Gas Operator | Dec 2025 |
| 929 | Wessely Energy Company | Dallas, TX 75206 | Oil & Gas Operator | May 2001 |
| 930 | Weststar Oil & Gas Inc | Edmond, OK 73013 | Oil & Gas Operator | Nov 2025 |
| 931 | Wheeler Richard Jr | Oklahoma City, OK 73112-8857 | Oil & Gas Operator | Mar 2005 |
| 932 | Whitaker Energy Inc | Humble, TX 77346-1798 | Oil & Gas Operator | Oct 2025 |
| 933 | Whitaker Raymond | Paul Valley, OK 73075-1041 | Oil & Gas Operator | May 2007 |
| 934 | Whitco Operating Company | Duncan, OK 73534-1936 | Oil & Gas Operator | Oct 2009 |
| 935 | Whiting Oil And Gas Corporation | Houston, TX 77002 | Oil & Gas Operator | Dec 2025 |
| 936 | Whitmar Exploration Company | Denver, CO 80202 | Oil & Gas Operator | Oct 2025 |
| 937 | Whitmar Natural Resources Co | Tulsa, OK 74136-9998 | Oil & Gas Operator | Jun 2004 |
| 938 | Whitmar Operating Company | Tulsa, OK 74103-3515 | Oil & Gas Operator | Apr 2009 |
| 939 | Wil-MC Oil Corporation The | Irving, TX 75015-2510 | Oil & Gas Operator | Mar 1999 |
| 940 | Wildhorse Oil & Gas Corporation | Ardmore, OK 73402 | Oil & Gas Operator | May 2019 |
| 941 | Wildhorse Operating Company | Ardmore, OK 73402 | Oil & Gas Operator | Dec 2025 |
| 942 | Wilkins L L E & O Company | Shawnee, OK 74801 | Oil & Gas Operator | Aug 2018 |
| 943 | Williams Reid Oil Co | Dallas, TX 75234 | Oil & Gas Operator | Oct 2025 |
| 944 | Winchester Oil Corporation | Maysville, OK 73057-0600 | Oil & Gas Operator | Apr 2010 |
| 945 | Wise Oil & Gas Company LLC | Shawnee, OK 74801-8507 | Oil & Gas Operator | Feb 2024 |
| 946 | WLW Oil & Gas LLC | Kingfisher, OK 73750 | Oil & Gas Operator | Nov 2025 |
| 947 | WM Energy LLC | Asher, OK 74826 | Oil & Gas Operator | Oct 2025 |
| 948 | Wolf Howard Lee | Burneyville, OK 73430-9617 | Oil & Gas Operator | Jun 2000 |
| 949 | Wolverine Exploration Company | Houston, TX 77002 | Oil & Gas Operator | May 2019 |
| 950 | Woods Petroleum Corporation | Oklahoma City, OK 73112 | Oil & Gas Operator | Mar 2015 |
| 951 | WR Oil & Gas LLC | Plano, TX 75024-3523 | Oil & Gas Operator | Oct 2025 |
| 952 | Wynn-Crosby Operating LP | Dallas, TX 75201 | Oil & Gas Operator | Oct 2025 |
| 953 | Xae Corporation | Norman, OK 73072 | Oil & Gas Operator | Apr 2021 |
| 954 | Xeric Oil & Gas Corporation | Midland, TX 79702 | Oil & Gas Operator | Apr 2014 |
| 955 | XTO Energy Inc. | Spring, TX 77389 | Oil & Gas Operator | Dec 2025 |
| 956 | Yale Oil Association, Inc. | Oklahoma City, OK 73105 | Oil & Gas Operator | Nov 2025 |
| 957 | Zeiders Bros. Oil & Gas Company, L.L.C. | Edmond, OK 73003 | Oil & Gas Operator | Oct 2025 |
| 958 | Zenergy Inc | Tulsa, OK 74136 | Oil & Gas Operator | Nov 2025 |
| 959 | Zzron Inc. | Midland, TX 79704 | Oil & Gas Operator | Aug 2003 |