| 1 | 4D Oil LLC | Cushing, OK 74023 | Oil Operator | Aug 2025 |
| 2 | Abs Oil, Inc. | Piqua, KS 66761 | Oil Operator | Apr 2022 |
| 3 | Admiral Bay (USA) Inc. | Centennial, CO 80112 | Gas Operator | Jun 2011 |
| 4 | Akandas, Inc. | Chanute, KS 66720 | Oil Operator | Aug 2002 |
| 5 | Allison Oil Comp | | Oil Operator | Dec 1986 |
| 6 | Altavista Energy, Inc. | Wellsville, KS 66092 | Oil Operator | Sep 2025 |
| 7 | Armada Operating, LLC | Dallas, TX 75254 | Oil Operator | Aug 2015 |
| 8 | Armadilla Oil & Gas, LLC | Madison, KS 66860 | Oil Operator | Sep 2025 |
| 9 | Ashlock True | | Oil Operator | Nov 1987 |
| 10 | Ashlock, Beryl Roderick | Virgil, KS 66870 | Oil Operator | Dec 2019 |
| 11 | B & B Oil Compan | | Oil & Gas Operator | Jul 1992 |
| 12 | B & J Developers | | Oil Operator | Oct 1995 |
| 13 | Ballard Lance E | | Oil Operator | Dec 1993 |
| 14 | Barnett Oil Co | | Oil & Gas Operator | Dec 2009 |
| 15 | Bell Oil Company | | Oil & Gas Operator | Oct 1985 |
| 16 | Berco Oil Co., A General Partnership | Buffalo, KS 66717 | Oil & Gas Operator | Dec 2024 |
| 17 | Billy Oil Incorp | | Oil & Gas Operator | Nov 1991 |
| 18 | Bird & Hanley | | Oil Operator | Dec 1993 |
| 19 | Birk Edward E | | Oil Operator | Dec 2009 |
| 20 | Birk Petroleum | | Oil Operator | Sep 2025 |
| 21 | Birk, Darrin L. | Burlington, KS 66839 | Oil Operator | Sep 2025 |
| 22 | Birk, Linda | Burlington, KS 66839 | Oil Operator | Sep 2025 |
| 23 | Bishop Oil & Exp | | Oil Operator | Dec 1988 |
| 24 | Bollinger, Jerald | Chanute, KS 66720 | Oil Operator | Dec 2024 |
| 25 | Bonanza Energy C | | Oil & Gas Operator | Sep 1995 |
| 26 | Bonanza Energy Corp | Benedict, KS 66714 | Oil & Gas Operator | Jul 2003 |
| 27 | C & S Oil | | Oil Operator | Dec 2019 |
| 28 | C M T Petroleum | | Oil Operator | Jul 1995 |
| 29 | C3oil, LLC | New Strawn, KS 66839 | Oil Operator | Sep 2025 |
| 30 | Cal Oil | | Oil Operator | Jul 1986 |
| 31 | Chriestenson Oil LLC | Neosho Falls, KS 66758 | Oil Operator | Sep 2025 |
| 32 | CK Oil | | Oil Operator | Aug 2025 |
| 33 | Cleaver Loraine | | Oil Operator | Dec 1996 |
| 34 | Coen Energy Corporation | Overland Park, KS 66221 | Oil Operator | Sep 2025 |
| 35 | Colt Energy Inc | Iola, KS 66749 | Oil & Gas Operator | Sep 2025 |
| 36 | Craig Oil Company | | Oil Operator | Dec 2019 |
| 37 | Dakota Production Co., Inc. | Neodesha, KS 66757 | Gas Operator | Sep 2025 |
| 38 | Damson Oil Corpo | | Oil & Gas Operator | May 1994 |
| 39 | Daylight Petroleum LLC | Houston, TX 77052 | Oil & Gas Operator | Dec 2025 |
| 40 | Daystar Petroleum Inc | Eureka, KS 67045 | Oil & Gas Operator | Sep 2025 |
| 41 | Dearinger Compan | | Oil Operator | Dec 1994 |
| 42 | Dorado Gas Resources LLC | Centennial, CO 80112 | Oil & Gas Operator | Jul 2009 |
| 43 | Dotson, Floyd | | Oil Operator | Dec 1980 |
| 44 | Double L Drilling | Yates Center, KS 66783 | Oil Operator | Jun 2000 |
| 45 | Dreyer Oil | | Oil Operator | Dec 2019 |
| 46 | Duke Oil & Gas Company, LLC | Wellsville, KS 66092 | Oil Operator | Sep 2025 |
| 47 | Energy Explorati | | Oil & Gas Operator | Oct 1993 |
| 48 | Evans Oil D W - | | Oil Operator | Mar 1992 |
| 49 | Evans Oil Inc. | Lebo, KS 66856 | Oil Operator | Sep 2025 |
| 50 | Exodus Gas & Oil LLC | Houston, TX 77002 | Oil & Gas Operator | Jan 2024 |
| 51 | F & S Oil | | Oil Operator | Dec 2021 |
| 52 | F E W Oil Compan | | Oil Operator | Jul 1993 |
| 53 | F.E.W. Oil Co. | Oceanside, CA 92058 | Oil Operator | Oct 2012 |
| 54 | Flowers Production Co., Inc. | El Dorado, KS 67042 | Oil Operator | Jul 2009 |
| 55 | French & Winters | | Oil Operator | Feb 1994 |
| 56 | French R E Oil C | | Oil Operator | Feb 1994 |
| 57 | G & W Oil Prod - | | Oil Operator | Oct 1995 |
| 58 | Galemore Oil Co. | | Oil Operator | May 2025 |
| 59 | Galemore, John E. | Chanute, KS 66720 | Oil Operator | Sep 2001 |
| 60 | Gee, Fred E. | Topeka, KS 66614 | Oil Operator | May 1998 |
| 61 | George, Mark | Leroy, KS 66857 | Oil Operator | Sep 2025 |
| 62 | German Oil Company LLC | | Oil Operator | Sep 2025 |
| 63 | Graham, Lowell H. | Le Roy, KS 66857 | Oil Operator | Sep 2025 |
| 64 | Greer, Joseph V. | Yates Center, KS 66783 | Oil & Gas Operator | Oct 2005 |
| 65 | Haas John L | | Oil Operator | Dec 2009 |
| 66 | Haas Petroleum LLC | Prairie VIllage, KS 66208 | Oil Operator | Sep 2025 |
| 67 | Haas, Mark L. | Kansas City, MO 67112 | Oil Operator | Feb 2013 |
| 68 | Hall Oil Company | Humboldt, KS 66748 | Oil Operator | Nov 2009 |
| 69 | Hall Richard A | | Oil Operator | Sep 1993 |
| 70 | Harris, David | Toronto, KS 66777 | Oil Operator | Sep 2025 |
| 71 | Haul-Pac, Inc. | Hiawatha, KS 66434 | Oil Operator | Aug 2025 |
| 72 | Hegwald, Jacob L. | Humboldt, KS 66748 | Oil Operator | Nov 2019 |
| 73 | Inferno Energy | Yates Center, KS 66783 | Oil Operator | Sep 2025 |
| 74 | J & M Oil Co | Overland PK, KS 66209 | Oil & Gas Operator | Sep 2025 |
| 75 | James Production, Inc. | Yates Center, KS 66783 | Oil Operator | Sep 2025 |
| 76 | Jaxco Energy, A General Partnership | Garnett, KS 66032 | Oil Operator | Sep 2025 |
| 77 | Jones Pumping Service, LLC | Yates Center, KS 66783 | Oil Operator | Aug 2025 |
| 78 | K C Crude Incorp | | Oil & Gas Operator | Mar 1994 |
| 79 | Kanalta Resources, LTD. | Yates Center, KS 66783 | Oil Operator | Jan 1998 |
| 80 | Kansas Crude Resources, LLC | | Oil Operator | Sep 2025 |
| 81 | Kansas Oil, LLC | | Oil Operator | Sep 2025 |
| 82 | Kenneth & Regina Laymon, LLC | Neosho Falls, KS 66758 | Oil Operator | Dec 2019 |
| 83 | Keys Gerald W Oi | | Oil Operator | Mar 1993 |
| 84 | Keys, Gerald Oil Production & Explor. | Humboldt, KS 66748 | Oil Operator | Mar 1999 |
| 85 | Kilby, M. T. | Yates Center, KS 66783 | Oil Operator | Sep 1986 |
| 86 | Kinderhook Oil & | | Oil Operator | Dec 1993 |
| 87 | King Energy Co. | | Oil Operator | Nov 2019 |
| 88 | Klippel, B.W., Jr. | Wichita, KS 67220 | Oil Operator | May 1999 |
| 89 | Kraft Oil Compan | | Oil Operator | Nov 1994 |
| 90 | Kraft Oil Company LLC | Gridley, KS 66852 | Oil Operator | Sep 2025 |
| 91 | L & A Energy LP | | Oil Operator | Sep 2025 |
| 92 | L & B Crude, Inc. | Yates Center, KS 66783 | Oil Operator | Nov 2019 |
| 93 | L & M Oil | | Oil Operator | Aug 2025 |
| 94 | Laymon Oil Compa | | Oil & Gas Operator | Dec 1996 |
| 95 | Laymon Oil Company | | Oil Operator | Feb 2001 |
| 96 | Laymon Oil II, LLC | Neosho Falls, KS 66758 | Oil Operator | Sep 2025 |
| 97 | Laymon, Michael | Yates Center, KS 66783 | Oil Operator | Jun 2025 |
| 98 | Lee Donna Oil Co | | Oil & Gas Operator | Dec 1996 |
| 99 | Leedy Oil Produc | | Oil & Gas Operator | Dec 1995 |
| 100 | Leedy Oil Producers | | Oil Operator | Nov 2009 |