| 1 | W C T Operating LLC | Oklahoma City, OK 73101-0678 | Oil & Gas Operator | Oct 2023 |
| 2 | W S Crude Oil Purchasing Inc | Oklahoma City, OK 73129-7613 | Oil & Gas Operator | May 2008 |
| 3 | W-N Energy Corp | Tulsa, OK 74121-1468 | Oil & Gas Operator | Nov 1994 |
| 4 | Wagner Oil Company | Fort Worth, TX 76102 | Oil & Gas Operator | Apr 2024 |
| 5 | Walden E F | Ada, OK 74820 | Oil & Gas Operator | Aug 2014 |
| 6 | Walker Keith F | Ardmore, OK 73401 | Oil & Gas Operator | Jan 2019 |
| 7 | Walker R J Oil Co Inc | | Oil & Gas Operator | May 2003 |
| 8 | Wallace Oil & Gas Inc | Oklahoma City, OK 73156 | Oil & Gas Operator | Apr 2024 |
| 9 | Walsh Jr F Howard | Fort Worth, TX 76102-4773 | Oil & Gas Operator | Dec 2023 |
| 10 | Walsh Jr F Howard Opr Co Inc | Fort Worth, TX 76102-4773 | Oil & Gas Operator | Feb 2016 |
| 11 | Walters Frank | Pernell, OK 73076 | Oil & Gas Operator | Sep 2014 |
| 12 | Walters Oil Company | Elmore City, OK 73433-9505 | Oil & Gas Operator | Feb 2024 |
| 13 | Walters Oil LLC | | Oil Operator | Apr 2020 |
| 14 | Ward Petroleum Corporation | Enid, OK 73702 | Oil & Gas Operator | Jan 2024 |
| 15 | Warren American Oil Company LLC | Tulsa, OK 74147 | Oil & Gas Operator | Apr 2024 |
| 16 | Warwick Associates LC | Oklahoma City, OK 73154-0405 | Oil & Gas Operator | Feb 2024 |
| 17 | Warwick-Jupiter LLC | | Oil & Gas Operator | Jan 2024 |
| 18 | Washita Energy Inc | Pauls Valley, OK 73075-0923 | Oil & Gas Operator | Mar 2015 |
| 19 | Weatherly Oil & Gas, LLC | Dallas, TX 75206 | Oil & Gas Operator | Apr 2024 |
| 20 | Webb John L Estate A Partner | Wichita Falls, TX 76302 | Oil Operator | May 2008 |
| 21 | Webb Roy C | Davis, OK 73030-0371 | Oil & Gas Operator | Feb 2024 |
| 22 | Webber Wesley | Davis, OK 73030 | Oil & Gas Operator | Oct 2009 |
| 23 | Weimer & Fitzhugh | Tulsa, OK 74103-4102 | Oil & Gas Operator | Dec 1993 |
| 24 | Welch Family Trust | Ada, OK 74820-9643 | Oil & Gas Operator | Apr 2015 |
| 25 | Wellco Energy Inc | Oklahoma City, OK 73113-0130 | Oil & Gas Operator | Jan 2024 |
| 26 | Wellco Production LLC | | Oil & Gas Operator | Jan 2024 |
| 27 | Wenexco, Inc. | Streetman, TX 75859 | Oil & Gas Operator | Apr 2024 |
| 28 | Wessely Energy Company | Dallas, TX 75206 | Oil & Gas Operator | May 2001 |
| 29 | Western Oil And Gas Development Corp | Oklahoma City, OK 73103-3735 | Oil & Gas Operator | Feb 2024 |
| 30 | Wheeler Richard Jr | Oklahoma City, OK 73112-8857 | Oil & Gas Operator | Mar 2005 |
| 31 | Whitaker Energy Inc | Humble, TX 77346-1798 | Oil & Gas Operator | Feb 2024 |
| 32 | Whitaker Raymond | Paul Valley, OK 73075-1041 | Oil & Gas Operator | May 2007 |
| 33 | Whitco Operating Company | Duncan, OK 73534-1936 | Oil & Gas Operator | Oct 2009 |
| 34 | White Wolf Energy LLC | | Oil & Gas Operator | Oct 2022 |
| 35 | Whiting Oil And Gas Corporation | Houston, TX 77002 | Oil & Gas Operator | Apr 2024 |
| 36 | Whitmar Exploration Company | Denver, CO 80202 | Oil & Gas Operator | Jan 2024 |
| 37 | Whitmar Natural Resources Co | Tulsa, OK 74136-9998 | Oil & Gas Operator | Jun 2004 |
| 38 | Whitmar Operating Company | Tulsa, OK 74103-3515 | Oil & Gas Operator | Apr 2009 |
| 39 | Wil-Mar Operations | Duncan, OK 73534-1566 | Oil & Gas Operator | Oct 2016 |
| 40 | Wil-MC Oil Corporation The | Irving, TX 75015-2510 | Oil & Gas Operator | Mar 1999 |
| 41 | Wildhorse Oil & Gas Corporation | Ardmore, OK 73402 | Oil & Gas Operator | May 2019 |
| 42 | Wildhorse Operating Company | Ardmore, OK 73402 | Oil & Gas Operator | Apr 2024 |
| 43 | Wilkins L L E & O Company | Shawnee, OK 74802-1807 | Oil & Gas Operator | Aug 2018 |
| 44 | Williams Reid Oil Co | Dallas, TX 75234 | Oil & Gas Operator | Jan 2024 |
| 45 | Windward Development LLC | Tulsa, OK 74136-7007 | Oil & Gas Operator | Jul 2019 |
| 46 | Wise Oil & Gas Company LLC | Shawnee, OK 74801-8507 | Oil & Gas Operator | Jan 2024 |
| 47 | WLW Oil & Gas LLC | Kingfisher, OK 73750-1102 | Oil & Gas Operator | Feb 2024 |
| 48 | WM Energy LLC | Asher, OK 74826 | Oil & Gas Operator | Jan 2024 |
| 49 | Wolf Howard Lee | Burneyville, OK 73430-9617 | Oil & Gas Operator | Jun 2000 |
| 50 | Wolverine Exploration Company | Houston, TX 77002 | Oil & Gas Operator | May 2019 |
| 51 | Woods Petroleum Corporation | Oklahoma City, OK 73112 | Oil & Gas Operator | Mar 2015 |
| 52 | Woodward Iodine Corporation | Woodward, OK 73802-1245 | Oil & Gas Operator | Feb 2024 |
| 53 | WR Oil & Gas LLC | | Oil & Gas Operator | Feb 2024 |
| 54 | Wynn-Crosby Operating LP | Dallas, TX 75201 | Oil & Gas Operator | Jan 2024 |