| 1 | A & L Energy Operations LLC | New York, NY 10022 | Oil Operator | Sep 2013 |
| 2 | Ajax Oil & Gas C | | Oil & Gas Operator | Jun 1989 |
| 3 | Amerikan Oil, LLC | Mound City, KS 66056 | Oil Operator | Apr 2025 |
| 4 | Area Management Corp | Prairie VIllage, KS 66207 | Oil Operator | Dec 2019 |
| 5 | Beard Oil Compan | | Oil & Gas Operator | Jul 1987 |
| 6 | Bergman, Anna F. Trust, A General Partnership | Shawnee, KS 66203 | Oil Operator | Nov 2019 |
| 7 | Blue Diamond Holdings, LLC | Wellsville, KS 66092 | Oil Operator | Dec 2009 |
| 8 | Bradley Oil Company | Edmond, OK 73013 | Oil Operator | Apr 2025 |
| 9 | Bridwell Oil Company, A General Partnership | Wichita Falls, TX 76307 | Oil Operator | Apr 2025 |
| 10 | Brock Oil & Gas | | Oil & Gas Operator | Dec 1996 |
| 11 | Brock Oil & Gas Corporation | Tulsa, OK 74103 | Oil & Gas Operator | Jun 2019 |
| 12 | Butler Petroleum LLC | Van Alstyne, TX 75495 | Oil Operator | May 2020 |
| 13 | BWC Energy LLC | Edgerton, KS 66021 | Oil Operator | Apr 2025 |
| 14 | Central States Energy LLC | Scottsdale, AZ 85260 | Gas Operator | Apr 2012 |
| 15 | Colt Energy Inc | Iola, KS 66749 | Oil & Gas Operator | Apr 2025 |
| 16 | Colt Energy Inco | | Oil & Gas Operator | Dec 1996 |
| 17 | Crater, Gary D. | Kansas City, MO 64108 | Oil & Gas Operator | Feb 1988 |
| 18 | Crude Producers | | Oil & Gas Operator | Sep 1988 |
| 19 | D & Z Exploration, Inc. | St Elmo, IL 62458 | Oil Operator | Apr 2025 |
| 20 | D. E. Exploration, Inc. | Wellsville, KS 66092 | Oil & Gas Operator | Apr 2025 |
| 21 | DB Energy, LLC | Baldwin City, KS 66006 | Oil Operator | Apr 2025 |
| 22 | De & TZ LLC | Wellsville, KS 66092 | Oil Operator | Apr 2025 |
| 23 | Emc Properties, LLC | Clinton, MO 64735 | Oil Operator | Dec 2019 |
| 24 | Evans Douglas G | | Oil Operator | Aug 1987 |
| 25 | Evans, Glenn A. | Paola, KS 66071 | Oil Operator | Oct 1989 |
| 26 | Finley, Jonathan | Gardner, KS 66030 | Oil Operator | Mar 2025 |
| 27 | Frontier Land Company, Inc. | Leawood, KS 66206 | Oil Operator | Sep 2008 |
| 28 | George, Dale R. | Olathe, KS 66062 | Oil Operator | Dec 2007 |
| 29 | Gerald E Williams | | Oil Operator | Nov 1992 |
| 30 | Glaze Alva G Dri | | Oil Operator | Apr 1991 |
| 31 | HB Energy LLC | Wellsville, KS 66092 | Oil Operator | Apr 2025 |
| 32 | Hibernian Compan | | Oil & Gas Operator | Feb 1991 |
| 33 | Hillenburg Oil C | | Oil Operator | Apr 1994 |
| 34 | Hoehn Oil LLC | Wellsville, KS 66092 | Oil Operator | Apr 2025 |
| 35 | Hoff Oil & Gas | | Oil Operator | May 2013 |
| 36 | Holland Assoc | | Oil Operator | Sep 1987 |
| 37 | Hughes Drilling Co, A General Partnership | Wellsville, KS 66092 | Oil Operator | Apr 2025 |
| 38 | K & A Development LLC | Wellsville, KS 66092 | Oil Operator | Apr 2025 |
| 39 | Kansas Resource Exploration & Development, LLC | Overland Park, KS 66202 | Oil Operator | Apr 2025 |
| 40 | Karbank, Barney | Kansas City, MO 64199 | Oil Operator | Sep 2001 |
| 41 | Kelly Company LC | Lenexa, KS 67215 | Oil & Gas Operator | Apr 2025 |
| 42 | Kottwitz Oil Co., A General Partnership | | Oil Operator | Jul 2019 |
| 43 | Kramer Oil Field Service Inc | Wellsville, KS 66092 | Oil Operator | May 2019 |
| 44 | L. D. Drilling, Inc. | Great Bend, KS 67530 | Oil & Gas Operator | Apr 2025 |
| 45 | M. K. Fuhrman LLC | | Oil Operator | Mar 2025 |
| 46 | Martin Oil Properties | | Oil Operator | Dec 2009 |
| 47 | McMullin Well Se | | Oil & Gas Operator | Sep 1995 |
| 48 | Miller Bros Oil Company, Inc. | Burlington, KS 66839 | Oil Operator | Dec 2009 |
| 49 | Mo-Kan Oil Group | St. Louis, MO 63131 | Oil Operator | Sep 2001 |
| 50 | Osborn Energy, L.L.C. | Bucyrus, KS 66013 | Oil & Gas Operator | Jul 2017 |
| 51 | Paradigm Energy LLC | Lenexa, KS 66227 | Oil & Gas Operator | Dec 2024 |
| 52 | Petroleum Produc | | Oil & Gas Operator | Dec 1996 |
| 53 | Petroleum Techno | | Oil & Gas Operator | Dec 1996 |
| 54 | Petroleum Technologies, Inc. | Kansas City, MO 64112 | Oil & Gas Operator | Apr 2025 |
| 55 | Prairie Energy C | | Oil Operator | Oct 1987 |
| 56 | R.S. Glaze Drilling | | Oil Operator | Jan 1998 |
| 57 | Reusch Well Service, Inc. | Ottawa, KS 66067 | Oil Operator | Dec 2019 |
| 58 | Robert S. Harwell, Inc. | Edmond, OK 73034 | Oil Operator | Nov 2019 |
| 59 | Sag Oil Company LLC | Wellsville, KS 66092 | Oil Operator | Apr 2025 |
| 60 | Sanders, Jack W | Wellsville, KS 66092 | Oil Operator | Feb 1996 |
| 61 | St Petroleum, Inc. | Edgerton, KS 66021 | Oil Operator | Apr 2025 |
| 62 | Stephenson John | | Oil Operator | Dec 1985 |
| 63 | Thomas, Vernon C. | Gardner, KS 66030 | Oil Operator | Jun 2015 |
| 64 | Town Oil Company | Paola, KS 66071 | Oil & Gas Operator | Feb 2025 |
| 65 | Trend Properties | Olathe, KS 66061 | Gas Operator | Dec 1996 |
| 66 | Triple E Drillin | | Oil Operator | Jun 1992 |
| 67 | Tutcher, Dan C. | Houston, TX 77002 | Oil Operator | Dec 2004 |
| 68 | Unknown | Houston, TX 77208 | Oil & Gas Operator | Dec 2023 |
| 69 | Voigts, William Jr. | Edgerton, KS 66021 | Oil Operator | Dec 2003 |
| 70 | Wellsville Oil Co | Wellsville, KS 66092 | Oil Operator | Sep 2000 |
| 71 | Whitlow Energy, Inc. | Spring Hill, KS 66083 | Oil & Gas Operator | Apr 2025 |
| 72 | Wise, Rodney J. | Anna, OH 45302 | Oil Operator | Jul 2011 |