| 6401 | Wentworth Operating Company | Oklahoma City, OK 73162-1863 | Oil & Gas Operator | Sep 2025 |
| 6402 | Wes-Tex Drilling Company | Abilene, TX 79604 | Oil & Gas Operator | Jan 2000 |
| 6403 | Wessel Oil And Gas | Cushing, OK 74023-9580 | Oil & Gas Operator | Mar 2015 |
| 6404 | Wessely Energy Company | Dallas, TX 75206 | Oil & Gas Operator | May 2001 |
| 6405 | West Bay Exploration Company | Muenster, TX 76252 | Oil & Gas Operator | Sep 2025 |
| 6406 | West Fox SWD LLC | Ratliff City, OK 73481 | Oil Operator | Aug 2025 |
| 6407 | West Operating Company | Seminole, OK 74868-3851 | Oil & Gas Operator | Mar 2015 |
| 6408 | Westamerica Corporation | Dewey, OK 74029-0040 | Oil & Gas Operator | Aug 1999 |
| 6409 | Westend Operating LLC | Collinsville, OK 74021 | Oil Operator | Aug 2025 |
| 6410 | Western Division Investments Inc | Enid, OK 73701 | Oil & Gas Operator | Jul 2021 |
| 6411 | Western Farmers Electric Coop | Anadarko, OK 73005-0429 | Oil & Gas Operator | Apr 2012 |
| 6412 | Western Mountain Resources LLC | Cogan Station, PA 17728 | Oil & Gas Operator | Aug 2025 |
| 6413 | Western Natl Resource Expl LLC | Oklahoma City, OK 73154-0755 | Oil & Gas Operator | Mar 2015 |
| 6414 | Western Natural Resources Inc | Oklahoma City, OK 73116 | Oil & Gas Operator | Apr 2015 |
| 6415 | Western Oil And Gas Development Corp | Oklahoma City, OK 73103-3735 | Oil & Gas Operator | Sep 2025 |
| 6416 | Western Oil Company | Midland, TX 79702 | Oil & Gas Operator | Jul 2014 |
| 6417 | Western Petroleum Company Inc | Tulsa, OK 74170-2676 | Oil & Gas Operator | Apr 2020 |
| 6418 | Western Products Corporation | Fairview, OK 73737 | Oil & Gas Operator | Nov 2004 |
| 6419 | Western Tank Trucks Inc | Hennessey, OK 73742 | Oil Operator | Jul 2011 |
| 6420 | Westfall-Gooden Reserves LLC | Oklahoma City, OK 73106 | Oil & Gas Operator | Sep 2025 |
| 6421 | Westland Oil Development Corp. | Conroe, TX 77305 | Oil & Gas Operator | Mar 2008 |
| 6422 | Westphal Oil & Gas Inc | Fort Smith, AR 72901-2199 | Oil & Gas Operator | Feb 2015 |
| 6423 | Westshore Operating Inc | Naples, FL 34109-0549 | Oil & Gas Operator | Dec 2011 |
| 6424 | Westside Wells Inc | Altus, OK 73521 | Oil & Gas Operator | Nov 2020 |
| 6425 | Weststar Oil & Gas Inc | Edmond, OK 73013 | Oil & Gas Operator | Sep 2025 |
| 6426 | Weststar Operating Company | Santa Anna, TX 76878 | Oil & Gas Operator | Mar 2015 |
| 6427 | Westwind Exploration Company | Oklahoma City, OK 73123 | Oil & Gas Operator | Oct 1998 |
| 6428 | Westwood Energy, Inc. | Abilene, TX 79608 | Oil & Gas Operator | May 2013 |
| 6429 | Wetzel Producing Company | Duncan, OK 73533-4602 | Oil & Gas Operator | Aug 2025 |
| 6430 | WF Operating LLC | Bartlesville, OK 74003 | Oil Operator | May 2023 |
| 6431 | WFD Oil Corporation | Edmond, OK 73012 | Oil & Gas Operator | Sep 2025 |
| 6432 | WFW Production Company, Inc. | Muenster, TX 76252 | Oil & Gas Operator | Dec 2025 |
| 6433 | WG Oil & Gas LLC | Okmulgee, OK 74447-7862 | Oil & Gas Operator | Dec 2022 |
| 6434 | Wharton Oil Co. | Vernon, TX 76384 | Oil & Gas Operator | Dec 2000 |
| 6435 | Wheatland Oil Inc | Enid, OK 73702-1032 | Oil & Gas Operator | Mar 2015 |
| 6436 | Wheeler & Hanlin MFG Co Inc | Tulsa, OK 74148 | Oil Operator | Jun 1998 |
| 6437 | Wheeler Energy Co. | Tulsa, OK 74101 | Oil & Gas Operator | Aug 2025 |
| 6438 | Wheeler Energy, LLC | Tulsa, OK 74101 | Oil & Gas Operator | Dec 2025 |
| 6439 | Wheeler Oil & Gas Inc | Tulsa, OK 74103-4293 | Oil & Gas Operator | Jan 2007 |
| 6440 | Wheeler Oil Company | Sperry, OK 74073-9417 | Oil & Gas Operator | Jun 2025 |
| 6441 | Wheeler Richard Jr | Oklahoma City, OK 73112-8857 | Oil & Gas Operator | Mar 2005 |
| 6442 | Whitaker Energy Inc | Humble, TX 77346-1798 | Oil & Gas Operator | Aug 2025 |
| 6443 | Whitaker Raymond | Paul Valley, OK 73075-1041 | Oil & Gas Operator | May 2007 |
| 6444 | Whitco Operating Company | Duncan, OK 73534-1936 | Oil & Gas Operator | Oct 2009 |
| 6445 | Whitdale Inc | Cushing, OK 74023 | Oil & Gas Operator | Aug 2023 |
| 6446 | White Alton L Trust | Nowata, OK 74048 | Oil & Gas Operator | Aug 2013 |
| 6447 | White Brothers Investment Inc | Dallas, TX 75201 | Oil & Gas Operator | Apr 2014 |
| 6448 | White Buffalo Petroleum Co | Bethany, OK 73008-3104 | Oil & Gas Operator | Jun 2007 |
| 6449 | White Clarence A | Lawton, OK 73505-4927 | Oil & Gas Operator | Aug 2025 |
| 6450 | White Exploration Inc | Wichita, KS 67278 | Oil & Gas Operator | Jun 2025 |
| 6451 | White Goat Resources LLC | Yukon, OK 73099 | Oil & Gas Operator | Sep 2025 |
| 6452 | White Mike Oil Field Service | Edmond, OK 73034 | Oil & Gas Operator | Jan 2013 |
| 6453 | White Monty & Terry Production | Paden, OK 74860 | Oil & Gas Operator | May 2013 |
| 6454 | White N J & White J B | Paden, OK 74860-0114 | Oil Operator | Aug 2013 |
| 6455 | White Oak Production Company | Conway, AR 72034 | Oil & Gas Operator | Sep 2005 |
| 6456 | White Oil Company | Cement, OK 73017-0515 | Oil Operator | Jun 2002 |
| 6457 | White Operating Company | Oklahoma City, OK 73159-7136 | Oil & Gas Operator | Sep 2025 |
| 6458 | White Quincy | Haskell, OK 74436-8798 | Oil Operator | Apr 2020 |
| 6459 | White Rock Oil & Gas, LLC | Plano, TX 75024 | Oil & Gas Operator | Dec 2025 |
| 6460 | White Star Petroleum II LLC | Oklahoma City, OK 73113-1360 | Oil & Gas Operator | Aug 2025 |
| 6461 | White Star Petroleum LLC | Oklahoma City, OK 73116-7906 | Oil & Gas Operator | Jul 2025 |
| 6462 | White Stone LLC | Waynoka, OK 73860-4801 | Oil & Gas Operator | Sep 2025 |
| 6463 | White Walter & Betty | | Oil Operator | Mar 2018 |
| 6464 | White'S Well Service | Healdton, OK 73438-4160 | Oil & Gas Operator | Aug 2025 |
| 6465 | White, Wesley R | | Oil Operator | Aug 2025 |
| 6466 | Whitecap Energy L.L.C. | | Oil & Gas Operator | Sep 2018 |
| 6467 | Whitehead Prod. Co., Inc. | Humble, TX 77338 | Oil & Gas Operator | Sep 2025 |
| 6468 | Whitehead Ross E | Lamont, OK 74643-0326 | Oil & Gas Operator | Nov 2014 |
| 6469 | Whitehorse Inc | Saint Charles, MO 63303-4204 | Oil & Gas Operator | Sep 2015 |
| 6470 | Whiteman Industries Inc | Oklahoma City, OK 73101 | Oil & Gas Operator | May 2025 |
| 6471 | Whiting Oil And Gas Corporation | Houston, TX 77002 | Oil & Gas Operator | Dec 2025 |
| 6472 | Whitley Oil & Gas Inc | Owasso, OK 74055 | Oil & Gas Operator | Jun 2009 |
| 6473 | Whitley Robert L | Saint Louis, OK 74866-0004 | Oil & Gas Operator | Sep 2014 |
| 6474 | Whitmar Exploration Company | Denver, CO 80202 | Oil & Gas Operator | Aug 2025 |
| 6475 | Whitmar Natural Resources Co | Tulsa, OK 74136-9998 | Oil & Gas Operator | Jun 2004 |
| 6476 | Whitmar Operating Company | Tulsa, OK 74103-3515 | Oil & Gas Operator | Apr 2009 |
| 6477 | Whittington Curtis | Stonewall, OK 74871-0482 | Oil & Gas Operator | Feb 2011 |
| 6478 | Whomble O O | Morris, OK 74445 | Oil Operator | Jun 2021 |
| 6479 | WHR Corporation | | Oil & Gas Operator | Jul 2014 |
| 6480 | Wible Limited Liability Co | Edmond, OK 73012 | Oil Operator | Oct 2024 |
| 6481 | Wicklund Petroleum Corporation | Naples, FL 34108-0108 | Oil & Gas Operator | Dec 2019 |
| 6482 | Wieck Oil Company LLC | Cromwell, OK 74859 | Oil Operator | Aug 2014 |
| 6483 | Wikel, David W | | Oil Operator | Aug 2025 |
| 6484 | Wil-MC Oil Corporation The | Irving, TX 75015-2510 | Oil & Gas Operator | Mar 1999 |
| 6485 | Wil-Ron Inc | Lucien, OK 73757-9710 | Oil & Gas Operator | Aug 2025 |
| 6486 | Wilco Oil & Gas Corporation | Oklahoma City, OK 73159-6229 | Oil & Gas Operator | Dec 2023 |
| 6487 | Wilcox Oil Company | Rule, TX 79547 | Oil & Gas Operator | Aug 2008 |
| 6488 | Wilcox Pipe & Supply Co | Oklahoma City, OK 73189 | Oil & Gas Operator | May 2006 |
| 6489 | Wilcoxson Brothers | Terral, OK 73569 | Oil Operator | Mar 2008 |
| 6490 | Wild Outdoors Oil LLC | Duncan, OK 73533 | Oil & Gas Operator | Sep 2025 |
| 6491 | Wildcat Cement Co. | Shamrock, TX 79079 | Oil & Gas Operator | May 2015 |
| 6492 | Wildfire Oil & Gas Inc | Tulsa, OK 74136 | Oil & Gas Operator | Mar 2014 |
| 6493 | Wildhorse Oil & Gas Corporation | Ardmore, OK 73402 | Oil & Gas Operator | May 2019 |
| 6494 | Wildhorse Operating Company | Ardmore, OK 73402 | Oil & Gas Operator | Dec 2025 |
| 6495 | Wildwood Operating LLC | Hennessey, OK 73742-7711 | Oil & Gas Operator | Aug 2025 |
| 6496 | Wilkins L L E & O Company | Shawnee, OK 74801 | Oil & Gas Operator | Aug 2018 |
| 6497 | Wilkinson George R | St Augustine, FL 32080-5352 | Oil & Gas Operator | Jun 2011 |
| 6498 | Wilkinson Oil & Gas LLC | Duncan, OK 73533-2048 | Oil Operator | Jul 2025 |
| 6499 | Wilkison Richard W | Oklahoma City, OK 73107 | Oil Operator | Mar 2011 |
| 6500 | Will Energy Corporation | Dallas, TX 75201 | Oil & Gas Operator | Aug 2025 |