| 4701 | Wildcat Resc Inc | | Oil & Gas Operator | Nov 1992 |
| 4702 | Wildcat Resources | | Oil & Gas Operator | Jun 2016 |
| 4703 | Wildfire Oil & Gas, Inc. | Tulsa, OK 74136 | Oil & Gas Operator | Mar 2014 |
| 4704 | Wildhorse Oil | Bogue, KS 67625 | Oil Operator | Oct 1994 |
| 4705 | Wildhorse Operating Company | Ardmore, OK 73402 | Oil & Gas Operator | May 2025 |
| 4706 | Wildhorse Resources, LLC | Houston, TX 77279 | Oil & Gas Operator | Feb 2015 |
| 4707 | Wilkinson Drilli | | Oil Operator | Dec 1991 |
| 4708 | William G Smith Oil, LLC | Osawatomie, KS 66064 | Oil Operator | Apr 2014 |
| 4709 | Williams Gas Pipeline Central, Inc. | Shawnee Mission, KS 66215 | Oil Operator | Sep 2010 |
| 4710 | Williams Oil Company | Midland, TX 79710 | Oil & Gas Operator | May 2025 |
| 4711 | Williams Production RMT Company | Denver, CO 80202 | Oil & Gas Operator | Oct 2010 |
| 4712 | Williams Robert | | Oil & Gas Operator | Apr 1995 |
| 4713 | Williams, E. L. | Emporia, KS 66801 | Oil & Gas Operator | Nov 1988 |
| 4714 | Williams, Paul H. | Plainville, KS 67663 | Oil Operator | Mar 1987 |
| 4715 | Williams, Paul M. And/Or Judy A. | Leroy, KS 66857 | Oil Operator | Nov 2018 |
| 4716 | Williams, Raymond H.(Deceased) | Sedan, KS 67361 | Oil Operator | Nov 2009 |
| 4717 | Williams, Robert J. | Independence, KS 67301 | Oil Operator | May 2019 |
| 4718 | Williams, W. R. | Amarillo, TX 79105 | Oil & Gas Operator | Jun 2013 |
| 4719 | Williford Energy Company | Tulsa, OK 74135 | Oil & Gas Operator | May 2025 |
| 4720 | Willis Energy | Neodesha, KS 66757 | Oil & Gas Operator | Dec 2009 |
| 4721 | Wilson Charles B | | Oil & Gas Operator | Dec 1996 |
| 4722 | Wilson County Holdings LLC | Golden, CO 80403 | Oil Operator | Jan 2025 |
| 4723 | Wilson Oil Compa | | Oil Operator | Dec 1986 |
| 4724 | Wilson Oil Properties, LLC | Winfield, KS 67156 | Oil Operator | Nov 2009 |
| 4725 | Wilson Operating Company LLC | Tulsa, OK 74105 | Oil & Gas Operator | May 2025 |
| 4726 | Wilson Richard A | | Oil Operator | Dec 2009 |
| 4727 | Wilson Robert P | | Gas Operator | Dec 1996 |
| 4728 | Wilton Petroleum | | Oil & Gas Operator | Jun 1985 |
| 4729 | Wilton Petroleum, Inc. | Canton, KS 67428 | Oil & Gas Operator | Jan 2025 |
| 4730 | Wimsett Kenneth | | Oil Operator | Apr 1989 |
| 4731 | Win Oil Company | Russell, KS 67665 | Oil & Gas Operator | Jul 2021 |
| 4732 | Winco Of Kansas | Kechi, KS 67067 | Oil Operator | Aug 1982 |
| 4733 | Wind River Exploration Inc | Sewickley, PA 15143 | Oil & Gas Operator | Jan 2025 |
| 4734 | Wind River Oil & Gas, Inc. | Jackson, WY 83002 | Oil Operator | Aug 2000 |
| 4735 | Winder Oil Company | | Oil Operator | Jul 2024 |
| 4736 | Windgate Oil Com | | Oil Operator | Jul 1985 |
| 4737 | Windler-Doudna, A General Partnership | | Oil Operator | Sep 2000 |
| 4738 | Wineland Oil - LLC | Hays, KS 67601 | Oil Operator | Jan 2025 |
| 4739 | Winona Oil & Gas | | Oil & Gas Operator | Sep 1996 |
| 4740 | Winterscheid Oil, LLC | Olpe, KS 66865 | Oil Operator | Dec 2019 |
| 4741 | Wintershall Oil | | Oil Operator | Sep 1985 |
| 4742 | Wirtz Oil, LLC | Ellinwood, KS 67526 | Oil & Gas Operator | Jan 2025 |
| 4743 | Wise, Rodney J. | Anna, OH 45302 | Oil Operator | Jul 2011 |
| 4744 | Witcraft, Jimmy D. | Pawhuska, OK 74056 | Oil & Gas Operator | Jun 1987 |
| 4745 | Withers, Lawrence | Copeland, KS 67837 | Gas Operator | Nov 1996 |
| 4746 | Wixson R J Compa | | Oil Operator | Jan 1989 |
| 4747 | Wixson, R. J., Co. | Wichita, KS 67278 | Oil Operator | Oct 2002 |
| 4748 | WM KS Energy Resources LLC | Shreveport, LA 71101 | Oil & Gas Operator | Nov 2019 |
| 4749 | Woco, Inc. | Wichita, KS 67214 | Oil Operator | Dec 2009 |
| 4750 | Wolfe Jimmy Ray | | Oil Operator | Nov 1995 |
| 4751 | Wolfe, Jimmy Ray, Deceased | Peru, KS 67360 | Oil Operator | Sep 2009 |
| 4752 | Wolfe, Leslie | Peru, KS 67360 | Oil Operator | Dec 2014 |
| 4753 | Wolfe, Ray | Longton, KS 67352 | Oil Operator | Jul 1988 |
| 4754 | Wollard-Abbott Crude, A General Partnership | Parker, KS 66072 | Oil Operator | May 2008 |
| 4755 | Womelsdorf Oil | Welda, KS 66091 | Oil Operator | Apr 1999 |
| 4756 | Wood Energy, Inc. | Mount Vernon, IL 62864 | Oil Operator | Jan 2025 |
| 4757 | Wood McShane & T | | Oil Operator | Nov 1987 |
| 4758 | Wood, Donald E. | Independence, KS 67301 | Oil & Gas Operator | Dec 2024 |
| 4759 | Wood, E. H., Jr. | Wichita, KS 67202 | Oil & Gas Operator | Sep 2010 |
| 4760 | Woodman & Iannit | | Oil & Gas Operator | Sep 1996 |
| 4761 | Woodman & Iannitti Oil Company | Great Bend, KS 67530 | Oil & Gas Operator | Jan 2003 |
| 4762 | Woods Oil | | Oil Operator | Jan 2025 |
| 4763 | Woolsey Operating Company, LLC | Wichita, KS 67226 | Oil & Gas Operator | Jan 2025 |
| 4764 | Woolsey Petroleum Corporation | Wichita, KS 67202 | Oil & Gas Operator | Jan 2025 |
| 4765 | Worldwide Energy | | Oil & Gas Operator | May 1989 |
| 4766 | Worsham Petroleum | Denver, CO 80209 | Gas Operator | Aug 2001 |
| 4767 | Worth Drilling | | Oil Operator | Jun 1993 |
| 4768 | Wortman Farms, LLC | Medicine Lodge, KS 67104 | Oil & Gas Operator | Dec 2017 |
| 4769 | Wren Investments | | Oil Operator | Feb 1991 |
| 4770 | Wrestler Ronald | | Oil Operator | Dec 1994 |
| 4771 | Wrestler, David L., A General Partnership | Humboldt, KS 66748 | Oil Operator | Jan 2025 |
| 4772 | Wrestler, Ronald D., A General Partnership | Elsmore, KS 66732 | Oil Operator | Jan 2025 |
| 4773 | Wright, Erbe & Oil Assoc.& Tubbs | Thayer, KS 66776 | Oil Operator | Apr 2005 |
| 4774 | Wykoma Oil Incor | | Oil & Gas Operator | Jul 1990 |
| 4775 | Wynn-Crosby Operating, LTD. | Dallas, TX 75201 | Oil & Gas Operator | May 2025 |
| 4776 | Xanadu Exploration Company | Broken Arrow, OK 74014 | Oil & Gas Operator | Mar 2025 |
| 4777 | Xenex Incorporat | | Oil Operator | Mar 1991 |
| 4778 | Xenia Corporation, The | Garnett, KS 66032 | Oil Operator | Jan 2001 |
| 4779 | Xeric Oil & Gas Corporation | Midland, TX 79702 | Oil & Gas Operator | Apr 2014 |
| 4780 | Xog Operating LLC | Midland, TX 79702 | Oil & Gas Operator | May 2025 |
| 4781 | XTO Energy Inc. | Spring, TX 77389 | Oil & Gas Operator | May 2025 |
| 4782 | Yager Company | Hutchinson, KS 67502 | Oil & Gas Operator | Dec 2000 |
| 4783 | Yale Oil Association, Inc. | Oklahoma City, OK 73105 | Oil & Gas Operator | Mar 2025 |
| 4784 | Yearout, Dwain L. | South Haven, KS 67140 | Oil Operator | Oct 2024 |
| 4785 | Yellow Rose Energy, Inc. | Cottonwood Falls, KS 66845 | Gas Operator | Oct 1999 |
| 4786 | Yocham Oil Company | | Oil Operator | Jan 2025 |
| 4787 | Yoder Oil Compan | | Oil Operator | Sep 1988 |
| 4788 | Yoder, Alvin G. | Welda, KS 66091 | Oil Operator | Dec 2024 |
| 4789 | Yost Oil Operati | | Oil Operator | Jul 1990 |
| 4790 | Yost Oil Operations, Inc. | Russell, KS 67665 | Oil Operator | May 1999 |
| 4791 | Yost, M. A. | Russell, KS 67665 | Oil Operator | Aug 1990 |
| 4792 | Young Petroleum Service, LLC | Wichita, KS 67212 | Oil & Gas Operator | Sep 2023 |
| 4793 | Young, Harvey L. | Erie, KS 66733 | Oil Operator | Feb 2008 |
| 4794 | Younger Bernard | | Oil Operator | Nov 1992 |
| 4795 | Younger Energy C | | Oil & Gas Operator | Dec 1996 |
| 4796 | Younger Energy Company | Wichita, KS 67206 | Oil & Gas Operator | May 2025 |
| 4797 | Yucca Petroleum | | Gas Operator | Jan 1994 |
| 4798 | Yukon Properties LLC | Villa Park, CA 92861 | Oil & Gas Operator | Sep 2017 |
| 4799 | Yuma Oil Company | El Dorado, KS 67042 | Oil Operator | Apr 1993 |
| 4800 | Z & L Oil LLC | Longton, KS 67352 | Oil Operator | Jan 2025 |