| 1 | Agv Corp. | Attica, KS 67009 | Oil & Gas Operator | Jun 2025 |
| 2 | Allison J A | | Oil & Gas Operator | Nov 1995 |
| 3 | American Warrior Inc | Garden City, KS 67846 | Oil & Gas Operator | Jun 2025 |
| 4 | Anadarko Petroleum Corporation | Houston, TX 77251 | Oil & Gas Operator | Jul 2025 |
| 5 | Anadarko Prod | | Oil & Gas Operator | Dec 1996 |
| 6 | Anderson Energy, Inc. | Wichita, KS 67278 | Oil & Gas Operator | Apr 2025 |
| 7 | Apollo Energies Inc | Pratt, KS 67124 | Oil & Gas Operator | Jun 2025 |
| 8 | Ash Donald D Oil | | Oil & Gas Operator | Feb 1986 |
| 9 | Ash, Wiley R., Jr. | Andover, KS 67002 | Oil & Gas Operator | Mar 1990 |
| 10 | B5 Operating, LLC | Wellington, KS 67152 | Oil & Gas Operator | Jun 2025 |
| 11 | Barfield Oil Cor | | Oil Operator | Oct 1995 |
| 12 | Bear Petroleum | | Oil & Gas Operator | Dec 1996 |
| 13 | Bear Petroleum LLC | Haysville, KS 67060 | Oil & Gas Operator | Jun 2025 |
| 14 | Bell Oil Company | | Oil & Gas Operator | Oct 1985 |
| 15 | Big 'J' Prod Com | | Oil & Gas Operator | Aug 1992 |
| 16 | Bisbee Oil And Gas Co., Inc. | Kansas City, MO 64106 | Oil & Gas Operator | Dec 2009 |
| 17 | Blue Steel Investments, LLC | Edmond, OK 73013 | Oil Operator | Oct 2024 |
| 18 | Bolding Grady Co | | Oil & Gas Operator | Nov 1995 |
| 19 | Brandt Prod Comp | | Oil & Gas Operator | Sep 1994 |
| 20 | Buffalo Oil & Gas LLC | Oxford, KS 67119 | Oil & Gas Operator | Jun 2025 |
| 21 | Bullseye Petrole | | Oil Operator | Oct 1992 |
| 22 | Burk Royalty Co., LTD. | Wichita Falls, TX 76308 | Oil & Gas Operator | Oct 2025 |
| 23 | Camio Enterprises, LLC | Augusta, KS 67010 | Oil Operator | Jun 2025 |
| 24 | Carr Exploration | | Oil & Gas Operator | Sep 1993 |
| 25 | Catron Oil Div - | | Oil Operator | Aug 1989 |
| 26 | Catron Oil Division | | Oil Operator | Feb 2000 |
| 27 | Central Crude Corp. | Wichita, KS 67206 | Oil Operator | Mar 2014 |
| 28 | Chevron U S A In | | Oil & Gas Operator | Sep 2000 |
| 29 | CK Oil & Gas LLC | Herington, KS 67449 | Oil & Gas Operator | Mar 2025 |
| 30 | Coastal Oil & Ga | | Oil & Gas Operator | Oct 1996 |
| 31 | Continental Ener | | Oil & Gas Operator | Dec 1996 |
| 32 | Cook Operating C | | Oil Operator | May 1987 |
| 33 | Cook, James A. | Augusta, KS 67010 | Oil Operator | Jul 1997 |
| 34 | Cortam, Inc. | Augusta, KS 67010 | Oil Operator | Dec 2024 |
| 35 | Crowe Drilling C | | Oil & Gas Operator | May 1995 |
| 36 | Dixon Oil Compan | | Oil Operator | Apr 1994 |
| 37 | Docking Development Company, LLC | Arkansas City, KS 67005 | Oil & Gas Operator | Oct 2013 |
| 38 | Dubois, Allen | Whitewater, KS 67154 | Oil Operator | May 2000 |
| 39 | Eagle Creek Resources, LLC | Sewickley, PA 15143 | Oil & Gas Operator | Dec 2024 |
| 40 | Eagle Energy | Midland, TX 79710 | Oil & Gas Operator | Aug 1994 |
| 41 | Energy Managemen | | Oil & Gas Operator | Jul 1991 |
| 42 | F & M Oil Compan | | Oil & Gas Operator | Feb 1993 |
| 43 | F.G. Holl Co., LLC | Wichita, KS 67206 | Oil & Gas Operator | Jun 2025 |
| 44 | Fina Oil & Chemi | | Oil & Gas Operator | Oct 1995 |
| 45 | Four States Petr | | Oil & Gas Operator | Nov 1990 |
| 46 | G & W Oil Prod - | | Oil Operator | Oct 1995 |
| 47 | Gabel, Craig | Wichita, KS 67216 | Oil Operator | Jun 2025 |
| 48 | Giles, Benjamin M. | Towanda, KS 67144 | Oil & Gas Operator | Oct 2016 |
| 49 | Goodin Raymond M | | Oil Operator | Mar 1988 |
| 50 | Grand Mesa Operating Co | Wichita, KS 67206 | Oil & Gas Operator | Aug 2025 |
| 51 | Hammer Oil Compa | | Oil Operator | Oct 1985 |
| 52 | Hartman Oil Co., Inc. | Wichita, KS 67206 | Oil & Gas Operator | Jun 2025 |
| 53 | Hess Oil Company | McPherson, KS 67460 | Oil & Gas Operator | Jun 2025 |
| 54 | HG Oil Holdings, LLC | Hoisington, KS 67544 | Oil & Gas Operator | Jun 2025 |
| 55 | Hogoboom Al Oilf | | Oil Operator | Oct 1990 |
| 56 | Indian Oil Company | Gainesville, TX 76241 | Oil & Gas Operator | Oct 2025 |
| 57 | International Ventures, Inc. | Pogasa Springs, CO 81147 | Oil Operator | Jul 1996 |
| 58 | Jay Boy Oil Inco | | Oil & Gas Operator | May 1992 |
| 59 | Jordan Oil Management Inc. | Haysville, KS 67060 | Oil & Gas Operator | Jun 2025 |
| 60 | K C Resources In | | Oil & Gas Operator | Oct 1993 |
| 61 | Kaiser-Francis O | | Oil & Gas Operator | Oct 1995 |
| 62 | Kansas Gas Suppl | | Gas Operator | Sep 1984 |
| 63 | Kansas Petroleum | | Oil & Gas Operator | Dec 1993 |
| 64 | Kennedy & Mitche | | Oil & Gas Operator | May 1990 |
| 65 | Kingsbury Petrol | | Oil Operator | Jul 1986 |
| 66 | Kiwanda Resc Inc | | Oil & Gas Operator | Aug 1993 |
| 67 | Kremeier Prod & Operating | | Oil & Gas Operator | Jan 2010 |
| 68 | Kutter Oil, Inc. | Eureka, KS 67045 | Oil Operator | Mar 2022 |
| 69 | Lachenmayr Oil C | | Oil Operator | Sep 1996 |
| 70 | Lachenmayr Oil LLC | Newton, KS 67114 | Oil & Gas Operator | Jun 2025 |
| 71 | Malone Donald J | | Oil Operator | Nov 1993 |
| 72 | Marjo Incorporat | | Oil & Gas Operator | Jun 1990 |
| 73 | Marshel Inv | | Oil Operator | Oct 1991 |
| 74 | Martin Oil Produ | | Oil & Gas Operator | Dec 1994 |
| 75 | Martin Oil Producers, Inc. | Garland, TX 75046 | Oil & Gas Operator | Aug 2013 |
| 76 | Max Oil LLC | Andover, KS 67002 | Oil Operator | Dec 2019 |
| 77 | McGinness Oil Co | Wichita, KS 67202 | Oil & Gas Operator | Dec 2019 |
| 78 | Miller, Everett E. | Sedan, KS 67361 | Oil & Gas Operator | Sep 1986 |
| 79 | Montgomery Production & Operating LLC | Herington, KS 67449 | Oil & Gas Operator | Jun 2025 |
| 80 | MW Oil, Inc | | Oil & Gas Operator | Jun 2025 |
| 81 | MWK Petroleum, LLC | Augusta, KS 67010 | Oil Operator | Jun 2025 |
| 82 | Northstar Investments, Inc. | Wichita, KS 67230 | Oil & Gas Operator | Jun 2025 |
| 83 | Novy Oil & Gas, Inc. | Goddard, KS 67052 | Oil & Gas Operator | Aug 2025 |
| 84 | Oil Producers, Inc. Of Kansas | Wichita, KS 67206 | Oil & Gas Operator | Oct 2025 |
| 85 | Oil-Tech Prod Co | | Oil & Gas Operator | Oct 1992 |
| 86 | Oxy USA Inc | Houston, TX 77046 | Oil & Gas Operator | Oct 2025 |
| 87 | Palomino Petrole | | Oil & Gas Operator | Dec 1995 |
| 88 | Palomino Petroleum Inc | Newton, KS 67114 | Oil & Gas Operator | Jun 2025 |
| 89 | Peak Operating LLC | Oklahoma City, OK 73157 | Oil & Gas Operator | Jun 2025 |
| 90 | Petr Corporation | | Oil Operator | Apr 1988 |
| 91 | Petroleum Prod. MGMT | | Oil Operator | Nov 1995 |
| 92 | Petroleum Produc | | Oil & Gas Operator | Dec 1996 |
| 93 | Prairie State Pe | | Oil Operator | Jul 1994 |
| 94 | Quadel Energy Co | | Oil & Gas Operator | Feb 1994 |
| 95 | Rains & Williams | | Oil & Gas Operator | Nov 1995 |
| 96 | Ritchie Explorat | | Oil & Gas Operator | Dec 1996 |
| 97 | Robinson Oil Com | | Oil & Gas Operator | Feb 1995 |
| 98 | Sanders, Arthur J. | Wichita, KS 67217 | Oil Operator | Nov 1989 |
| 99 | Schmidt Kermit O | | Oil & Gas Operator | Sep 1995 |
| 100 | Shaida, John H. | Wichita, KS 67226 | Oil & Gas Operator | Oct 2025 |