| 4501 | Viking Resources | | Oil & Gas Operator | Sep 1995 |
| 4502 | Viking Resources, Inc. | Stafford, TX 77477 | Oil & Gas Operator | Jul 2025 |
| 4503 | Vin, Inc. | Sterling, KS 67579 | Oil Operator | Oct 2024 |
| 4504 | Vincent Oil Corp | Wichita, KS 67202 | Oil & Gas Operator | Mar 2025 |
| 4505 | Vintage Petroleu | | Oil & Gas Operator | Dec 1995 |
| 4506 | Vintage Petroleum | | Oil & Gas Operator | Feb 2003 |
| 4507 | Vintage Petroleum, LLC | Houston, TX 77210 | Oil & Gas Operator | Dec 2019 |
| 4508 | Viresen & Cochra | | Oil & Gas Operator | Sep 1995 |
| 4509 | Vitruvian Exploration LLC | The Woodlands, TX 77380 | Oil & Gas Operator | May 2016 |
| 4510 | Viva International, Inc. | Overland Park, KS 66207 | Oil Operator | Jun 2023 |
| 4511 | Viva Oil Company, Inc. | Kermit, TX 79745 | Oil & Gas Operator | Oct 2015 |
| 4512 | Vji Natural Resources, Inc. | | Oil & Gas Operator | Mar 2025 |
| 4513 | Voigt O & G Comp | | Oil & Gas Operator | Nov 1993 |
| 4514 | Voigt Oil & Gas Co., Inc. | McPherson, KS 67460 | Oil Operator | Mar 2025 |
| 4515 | Voigts, William Jr. | Edgerton, KS 66021 | Oil Operator | Dec 2003 |
| 4516 | Volga Oil Incorp | | Oil Operator | Sep 1990 |
| 4517 | Vonfeldt Oil Ope | | Oil Operator | Oct 1994 |
| 4518 | Vonfeldt, Alan J | Russell, KS 67665 | Oil Operator | Mar 2025 |
| 4519 | Vonfeldt, Steven R | Russell, KS 67665 | Oil Operator | Dec 2024 |
| 4520 | Voyager Petroleu | | Oil & Gas Operator | Dec 1986 |
| 4521 | VT Energy Partners, LLC | Andover, KS 67002 | Oil & Gas Operator | Dec 2019 |
| 4522 | Vulcan Resources, LLC | Skiatook, OK 74070 | Oil Operator | Mar 2024 |
| 4523 | W & W Prod Compa | | Oil Operator | Oct 1995 |
| 4524 | W & W Production Company, General Partnership | Chanute, KS 66720 | Oil & Gas Operator | Mar 2025 |
| 4525 | W M Petroleum LLC | Cedar Vale, KS 67024 | Oil Operator | Feb 2025 |
| 4526 | W&W Oil Co | Denver City, TX 79323 | Oil Operator | Jun 2002 |
| 4527 | W-R Oil Company | | Oil Operator | Jul 1990 |
| 4528 | W. D. Short Oil Co. | | Oil Operator | Apr 2004 |
| 4529 | W. R. Williams, Inc. | Amarillo, TX 79105 | Gas Operator | Dec 2019 |
| 4530 | W.D. Short Oil Co., LLC | Oxford, KS 67119 | Oil & Gas Operator | Mar 2025 |
| 4531 | W.J., Inc. | Ellis, KS 67637 | Oil Operator | Jan 2001 |
| 4532 | W.R.A. Oil Co. | | Oil & Gas Operator | Mar 2025 |
| 4533 | W4 Energy, LLC | Humboldt, KS 66748 | Gas Operator | Nov 2015 |
| 4534 | Wabash Energy Corporation | Lawrenceville, IL 62439 | Oil & Gas Operator | Dec 2009 |
| 4535 | Wabash Production And Development, Inc. | Fairfield, IL 62837 | Gas Operator | Apr 2002 |
| 4536 | Wachtman-Schroed | | Oil Operator | Aug 1986 |
| 4537 | Wachtman-Schroeder, A General Partnership | Pawhuska, OK 74056 | Oil Operator | Feb 2025 |
| 4538 | Waco Oil | | Oil Operator | Apr 1992 |
| 4539 | Waddell, Eric F. | Natoma, KS 67651 | Oil Operator | Aug 1995 |
| 4540 | Wainoco Oil & Ga | | Oil & Gas Operator | Jan 1993 |
| 4541 | Wakefield Oil Company, Inc. | Winfield, KS 67156 | Oil Operator | Aug 1999 |
| 4542 | Walcher Oil, LC | Bellevue, WA 98009 | Oil & Gas Operator | Feb 2025 |
| 4543 | Walcher, Wayne E. | Wichita, KS 67202 | Oil & Gas Operator | May 2024 |
| 4544 | Walker Corporation (The) | Oklahoma City, OK 73156 | Oil & Gas Operator | May 2006 |
| 4545 | Walker Ervin G | | Oil Operator | Jul 1992 |
| 4546 | Walker Oil & Gas | Early, TX 76802 | Oil & Gas Operator | Dec 2002 |
| 4547 | Walker Tank Service, Inc | Utica, KS 67584 | Oil Operator | Aug 2022 |
| 4548 | Walker, Ervin Gilbert | Medicine Lodge, KS 67104 | Oil & Gas Operator | Apr 2020 |
| 4549 | Wallace Energy I | | Oil Operator | Mar 1990 |
| 4550 | Wallace Energy, Inc. | Denver, CO 80202-4327 | Oil Operator | Jun 2015 |
| 4551 | Wallace Oil & Ga | | Gas Operator | Oct 1995 |
| 4552 | Wallace Oil & Gas Inc | Oklahoma City, OK 73156 | Oil & Gas Operator | Jul 2025 |
| 4553 | Waller Oil, LLC | Stockton, KS 67669 | Oil Operator | Feb 2025 |
| 4554 | Walls, Charles A. | Caney, KS 67333 | Oil Operator | Aug 2016 |
| 4555 | Walters Drilling | | Oil Operator | Mar 1988 |
| 4556 | Walton, Tara | Copan, OK 74022 | Oil Operator | Oct 2024 |
| 4557 | War Cry, LLC | Russell, KS 67665 | Oil Operator | Mar 2025 |
| 4558 | Ward Feed Yard, Inc. | Larned, KS 67550 | Oil & Gas Operator | Mar 2016 |
| 4559 | Warhorse Petroleum Inc | Lafayette, CO 80026 | Oil Operator | Mar 2025 |
| 4560 | Warner Oil Prod | | Oil Operator | Apr 1995 |
| 4561 | Warren American Oil Company LLC | Tulsa, OK 74147 | Oil & Gas Operator | Jul 2025 |
| 4562 | Warren, James E. | Arkansas City, KS 67005 | Oil Operator | Nov 2009 |
| 4563 | Watson Petroleum | | Oil & Gas Operator | Feb 1990 |
| 4564 | Watson, Ben | Blue Mound, KS 66010 | Oil Operator | Oct 2008 |
| 4565 | Watt, Larry | Copan, OK 74022 | Oil Operator | Oct 2019 |
| 4566 | Watts Oil And Gas | Hardtner, KS 67057 | Oil Operator | Apr 2006 |
| 4567 | Watts Tank Truck Service, Inc. | Hamilton, KS 66853 | Oil Operator | Mar 2025 |
| 4568 | Wausau Development Corporation | Laurel, MS 39440 | Oil & Gas Operator | Sep 2019 |
| 4569 | Way Drilling Com | | Oil & Gas Operator | Mar 1993 |
| 4570 | Wayside Angus Fa | | Oil & Gas Operator | Sep 2002 |
| 4571 | Wayside Prod Com | | Oil Operator | May 1984 |
| 4572 | WD Oil Company I | | Oil Operator | Apr 1986 |
| 4573 | Webco Oil Compan | | Oil Operator | Sep 1989 |
| 4574 | Webco Oil Company, Inc. | Hoisington, KS 67544 | Oil Operator | Mar 2025 |
| 4575 | Weber Four Oil Co., Inc. | Hoisington, KS 67544 | Oil Operator | Feb 2025 |
| 4576 | Webster Oil LLC | Leon, KS 67074 | Oil Operator | Mar 2025 |
| 4577 | Wedel, Darold | Canton, KS 67428 | Oil Operator | Apr 2002 |
| 4578 | Weeks, VIrginia | Hoisington, KS 67544 | Oil Operator | Mar 2002 |
| 4579 | Wehmeyer, Gerald | Independence, KS 67301 | Oil Operator | Aug 2024 |
| 4580 | Weigel Oil Company, LLC | Gorham, KS 67640 | Oil Operator | Mar 2025 |
| 4581 | Weigel V Francis | | Oil Operator | Mar 1994 |
| 4582 | Weigel, V. Francis - Family Partnership | Gorham, KS 67640 | Oil Operator | Jul 2004 |
| 4583 | Weilert Enterpri | | Oil Operator | Sep 1988 |
| 4584 | Weilert Michael | | Oil Operator | Oct 1993 |
| 4585 | Weilert, S.R. | Wichita, KS 67216 | Oil Operator | Oct 1998 |
| 4586 | Weinkauf Petroleum, Inc. | Tulsa, OK 74136 | Oil & Gas Operator | May 2025 |
| 4587 | Well Tech Oil And Gas, Inc. | Wichita, KS 67206 | Oil Operator | Sep 2020 |
| 4588 | Wells Energy Com | | Oil & Gas Operator | Mar 1994 |
| 4589 | Wells Oil Compan | | Gas Operator | Sep 1984 |
| 4590 | Wells Oil, LLC | Gridley, KS 66852 | Oil Operator | Mar 2025 |
| 4591 | Wells-Battelstei | | Oil & Gas Operator | Mar 1993 |
| 4592 | Wellstar Corporation | Northglenn, CO 80233 | Oil & Gas Operator | May 2025 |
| 4593 | Wellsville Oil C | | Oil Operator | Dec 1996 |
| 4594 | Wellsville Oil Co | Wellsville, KS 66092 | Oil Operator | Sep 2000 |
| 4595 | Wellwin Drilling | | Oil & Gas Operator | Dec 1994 |
| 4596 | Wellwin Drilling Corporation | Wellington, KS 67152 | Oil & Gas Operator | Mar 2025 |
| 4597 | Wenert Trich Oil | | Oil & Gas Operator | Jul 1990 |
| 4598 | Werth Exploration Trust | | Oil Operator | Dec 2013 |
| 4599 | West 40 Production | Ness City, KS 67560 | Oil Operator | Apr 1998 |
| 4600 | West Kansas Oil | | Oil Operator | Jul 1992 |