| 4501 | Wilkinson Energy LLC | Dodgeville, WI 53533 | Oil Operator | Nov 2023 |
| 4502 | William G Smith Oil, LLC | Osawatomie, KS 66064 | Oil Operator | Apr 2014 |
| 4503 | Williams Gas Pipeline Central, Inc. | Shawnee Mission, KS 66215 | Oil Operator | Sep 2010 |
| 4504 | Williams Oil Company | Midland, TX 79710 | Oil & Gas Operator | Apr 2024 |
| 4505 | Williams Production RMT Company | Denver, CO 80202 | Oil & Gas Operator | Oct 2010 |
| 4506 | Williams Robert | | Oil & Gas Operator | Apr 1995 |
| 4507 | Williams, E. L. | Emporia, KS 66801 | Oil & Gas Operator | Nov 1988 |
| 4508 | Williams, Paul H. | Plainville, KS 67663 | Oil Operator | Mar 1987 |
| 4509 | Williams, Paul M. And/Or Judy A. | Leroy, KS 66857 | Oil Operator | Nov 2018 |
| 4510 | Williams, Raymond H.(Deceased) | Sedan, KS 67361 | Oil Operator | Nov 2009 |
| 4511 | Williams, Robert J. | Independence, KS 67301 | Oil Operator | May 2019 |
| 4512 | Williams, W. R. | Amarillo, TX 79105 | Oil & Gas Operator | Jun 2013 |
| 4513 | Williford Energy Company | Tulsa, OK 74135 | Oil & Gas Operator | Apr 2024 |
| 4514 | Willis Energy | Neodesha, KS 66757 | Oil & Gas Operator | Dec 2009 |
| 4515 | Wilson Charles B | | Oil & Gas Operator | Dec 1996 |
| 4516 | Wilson County Holdings LLC | Golden, CO 80403 | Oil Operator | Nov 2023 |
| 4517 | Wilson Oil Compa | | Oil Operator | Dec 1986 |
| 4518 | Wilson Oil Properties, LLC | Winfield, KS 67156 | Oil Operator | Nov 2009 |
| 4519 | Wilson Operating Company LLC | Tulsa, OK 74105 | Oil & Gas Operator | Apr 2024 |
| 4520 | Wilson Richard A | | Oil Operator | Dec 2009 |
| 4521 | Wilson Robert P | | Gas Operator | Dec 1996 |
| 4522 | Wilton Petroleum, Inc. | Canton, KS 67428 | Oil & Gas Operator | Dec 2023 |
| 4523 | Wimsett Kenneth | | Oil Operator | Apr 1989 |
| 4524 | Win Oil Company | Russell, KS 67665 | Oil & Gas Operator | Jul 2021 |
| 4525 | Winco Of Kansas | Kechi, KS 67067 | Oil Operator | Aug 1982 |
| 4526 | Wind River Exploration Inc | Sewickley, PA 15143 | Oil & Gas Operator | Dec 2023 |
| 4527 | Wind River Oil & Gas, Inc. | Jackson, WY 83002 | Oil Operator | Aug 2000 |
| 4528 | Winder Oil Company | | Oil Operator | Sep 2023 |
| 4529 | Windgate Oil Com | | Oil Operator | Jul 1985 |
| 4530 | Windler-Doudna, A General Partnership | | Oil Operator | Sep 2000 |
| 4531 | Wineland Oil - LLC | Hays, KS 67601 | Oil Operator | Dec 2023 |
| 4532 | Winona Oil & Gas | | Oil & Gas Operator | Sep 1996 |
| 4533 | Winterscheid Oil, LLC | Olpe, KS 66865 | Oil Operator | Dec 2019 |
| 4534 | Wintershall Oil | | Oil Operator | Sep 1985 |
| 4535 | Wirtz Oil, LLC | Ellinwood, KS 67526 | Oil & Gas Operator | Dec 2023 |
| 4536 | Wise, Rodney J. | Anna, OH 45302 | Oil Operator | Jul 2011 |
| 4537 | Witcraft, Jimmy D. | Pawhuska, OK 74056 | Oil & Gas Operator | Jun 1987 |
| 4538 | Wixson R J Compa | | Oil Operator | Jan 1989 |
| 4539 | Wixson, R. J., Co. | Wichita, KS 67278 | Oil Operator | Oct 2002 |
| 4540 | WM KS Energy Resources LLC | Shreveport, LA 71101 | Oil & Gas Operator | Nov 2019 |
| 4541 | Woco, Inc. | Wichita, KS 67214 | Oil Operator | Dec 2009 |
| 4542 | Wolfe Jimmy Ray | | Oil Operator | Nov 1995 |
| 4543 | Wolfe, Jimmy Ray, Deceased | Peru, KS 67360 | Oil Operator | Sep 2009 |
| 4544 | Wolfe, Leslie | Peru, KS 67360 | Oil Operator | Dec 2014 |
| 4545 | Wolfe, Ray | Longton, KS 67352 | Oil Operator | Jul 1988 |
| 4546 | Wollard-Abbott Crude, A General Partnership | Parker, KS 66072 | Oil Operator | May 2008 |
| 4547 | Womelsdorf Oil | Welda, KS 66091 | Oil Operator | Apr 1999 |
| 4548 | Wood Energy, Inc. | Mount Vernon, IL 62864 | Oil Operator | Nov 2023 |
| 4549 | Wood McShane & T | | Oil Operator | Nov 1987 |
| 4550 | Wood, Donald E. | Independence, KS 67301 | Oil & Gas Operator | Dec 2023 |
| 4551 | Wood, E. H., Jr. | Wichita, KS 67202 | Oil & Gas Operator | Sep 2010 |
| 4552 | Woodman & Iannit | | Oil & Gas Operator | Sep 1996 |
| 4553 | Woodman & Iannitti Oil Company | Great Bend, KS 67530 | Oil & Gas Operator | Jan 2003 |
| 4554 | Woods Oil | | Oil Operator | Dec 2023 |
| 4555 | Woolsey Operating Company, LLC | Wichita, KS 67226 | Oil & Gas Operator | Dec 2023 |
| 4556 | Woolsey Petroleum Corporation | Wichita, KS 67202 | Oil & Gas Operator | Dec 2023 |
| 4557 | Worldwide Energy | | Oil & Gas Operator | May 1989 |
| 4558 | Worsham Petroleum | Denver, CO 80209 | Gas Operator | Aug 2001 |
| 4559 | Worth Drilling | | Oil Operator | Jun 1993 |
| 4560 | Wren Investments | | Oil Operator | Feb 1991 |
| 4561 | Wrestler Ronald | | Oil Operator | Dec 1994 |
| 4562 | Wrestler, David L., A General Partnership | Humboldt, KS 66748 | Oil Operator | Dec 2023 |
| 4563 | Wrestler, Ronald D., A General Partnership | Elsmore, KS 66732 | Oil Operator | Nov 2023 |
| 4564 | Wright, Erbe & Oil Assoc.& Tubbs | Thayer, KS 66776 | Oil Operator | Apr 2005 |
| 4565 | Wykoma Oil Incor | | Oil & Gas Operator | Jul 1990 |
| 4566 | Wynn-Crosby Operating, LTD. | Dallas, TX 75201 | Oil & Gas Operator | Apr 2024 |
| 4567 | Xanadu Exploration Company | Broken Arrow, OK 74014 | Oil & Gas Operator | Jan 2024 |
| 4568 | Xenex Incorporat | | Oil Operator | Mar 1991 |
| 4569 | Xenia Corporation, The | Garnett, KS 66032 | Oil Operator | Jan 2001 |
| 4570 | Xeric Oil & Gas Corporation | Midland, TX 79702 | Oil & Gas Operator | Apr 2014 |
| 4571 | Xog Operating LLC | Midland, TX 79702 | Oil & Gas Operator | Apr 2024 |
| 4572 | XTO Energy Inc. | Spring, TX 77389 | Oil & Gas Operator | Apr 2024 |
| 4573 | Yager Company | Hutchinson, KS 67502 | Oil & Gas Operator | Dec 2000 |
| 4574 | Yale Oil Association, Inc. | Oklahoma City, OK 73105 | Oil & Gas Operator | Apr 2024 |
| 4575 | Yearout, Dwain L. | South Haven, KS 67140 | Oil Operator | Sep 2023 |
| 4576 | Yocham Oil Company | | Oil Operator | Dec 2023 |
| 4577 | Yoder Oil Compan | | Oil Operator | Sep 1988 |
| 4578 | Yoder, Alvin G. | Welda, KS 66091 | Oil Operator | Jul 2023 |
| 4579 | Yost Oil Operati | | Oil Operator | Jul 1990 |
| 4580 | Yost Oil Operations, Inc. | Russell, KS 67665 | Oil Operator | May 1999 |
| 4581 | Yost, M. A. | Russell, KS 67665 | Oil Operator | Aug 1990 |
| 4582 | Young Petroleum Service, LLC | Wichita, KS 67212 | Oil & Gas Operator | Sep 2023 |
| 4583 | Young, Harvey L. | Erie, KS 66733 | Oil Operator | Feb 2008 |
| 4584 | Younger Bernard | | Oil Operator | Nov 1992 |
| 4585 | Younger Energy C | | Oil & Gas Operator | Dec 1996 |
| 4586 | Younger Energy Company | Wichita, KS 67207 | Oil & Gas Operator | Apr 2024 |
| 4587 | Yukon Properties LLC | Villa Park, CA 92861 | Oil & Gas Operator | Sep 2017 |
| 4588 | Yuma Oil Company | El Dorado, KS 67042 | Oil Operator | Apr 1993 |
| 4589 | Z & L Oil LLC | Longton, KS 67352 | Oil Operator | Dec 2023 |
| 4590 | Zeiders Bros Oil & Gas Co LLC | Edmond, OK 73003 | Oil & Gas Operator | Dec 2023 |
| 4591 | Zenergy Inc | Tulsa, OK 74136 | Oil & Gas Operator | Jan 2024 |
| 4592 | Zenith Drilling | | Oil & Gas Operator | Aug 1995 |
| 4593 | Zenith Drilling Corporation | Wichita, KS 67206 | Oil & Gas Operator | Dec 2023 |
| 4594 | Zeta Energy LLC | Ashland, OR 97520 | Oil Operator | Dec 2023 |
| 4595 | Zetetic Partners, LTD. | Georgetown, TX 78626 | Oil Operator | Aug 2022 |
| 4596 | Zinke & Trumbo L | | Oil & Gas Operator | Nov 2000 |
| 4597 | Zinszer Oil Co., Inc. | Hays, KS 67601 | Oil Operator | Dec 2019 |
| 4598 | Zinszer Oil Comp | | Oil Operator | Aug 1985 |
| 4599 | Zlab, Adolph | Yates Center, KS 66783 | Oil Operator | Jul 1997 |
| 4600 | Zoandra Petroleu | | Oil & Gas Operator | May 1993 |