| 1 | 4D'S Enterprises, LLC | Rantoul, KS 66079 | Oil Operator | Sep 2018 |
| 2 | Alpha Energy LLC | Ashland, OR 97520 | Oil & Gas Operator | Dec 2025 |
| 3 | Altavista Energy, Inc. | Wellsville, KS 66092 | Oil Operator | Dec 2025 |
| 4 | B & L | | Oil Operator | Apr 2016 |
| 5 | B & N Oil, LLC | | Oil Operator | Nov 2025 |
| 6 | Ballou Oil Well | | Oil Operator | Mar 1995 |
| 7 | Ballou Oil Well Service | | Oil Operator | Dec 2025 |
| 8 | Barnett Oil | | Oil Operator | Oct 2009 |
| 9 | BG-5, Inc. | Rantoul, KS 66079 | Oil Operator | Dec 2025 |
| 10 | Big Wehner Drilling, LLC | | Oil Operator | Nov 2025 |
| 11 | Black-Travis, Inc. | Paola, KS 66071 | Oil Operator | Dec 2025 |
| 12 | Blackhawk Oil Co | Ottawa, KS 66067 | Oil & Gas Operator | Jan 2011 |
| 13 | Bloomer Well Ser | | Oil Operator | Mar 1995 |
| 14 | Bloomer Well Service | | Oil Operator | Dec 2009 |
| 15 | Bloomer, Don C. And Bessie L. Liv. Trust | Rantoul, KS 66079 | Oil Operator | Dec 2025 |
| 16 | Bobcat Oilfield Service, Inc. | Louisburg, KS 66053 | Oil Operator | Dec 2025 |
| 17 | Brant Energy LLC | Rantoul, KS 66079 | Oil Operator | Apr 2022 |
| 18 | Burns WM J | | Oil Operator | Jun 1994 |
| 19 | Butler Petroleum LLC | Van Alstyne, TX 75495 | Oil Operator | May 2020 |
| 20 | BWC Energy LLC | Edgerton, KS 66021 | Oil Operator | Dec 2025 |
| 21 | C & R Well Servi | | Oil Operator | Sep 1996 |
| 22 | C & R Well Service, A General Partnership | Garnett, KS 66032 | Oil Operator | Dec 2009 |
| 23 | C D Oil | Wellsville, KS 66092 | Oil Operator | Aug 1998 |
| 24 | C F Oil - Frazie | | Oil Operator | Dec 1994 |
| 25 | C. D. Oil, Inc. | Wellsville, KS 66092 | Oil Operator | Dec 2009 |
| 26 | C. F. Oil, A General Partnership | Lake Lotawana, MO 64086 | Oil Operator | Nov 2025 |
| 27 | Captain'S Oil Inc. | Louisburg, KS 66053 | Oil Operator | Sep 2003 |
| 28 | Cherokee Oil | | Oil Operator | Nov 2025 |
| 29 | Coastal Oil & Ga | | Oil & Gas Operator | Oct 1996 |
| 30 | Colt Energy Inc | Iola, KS 66749 | Oil & Gas Operator | Dec 2025 |
| 31 | Colt Energy Inco | | Oil & Gas Operator | Dec 1996 |
| 32 | Continental Expl | | Oil Operator | Sep 1991 |
| 33 | Cris Oil | | Oil Operator | Nov 2025 |
| 34 | Crude Kin Oil Company, Inc. | Louisburg, KS 66053 | Oil Operator | Dec 2025 |
| 35 | Cutler Oil, LLC | Rantoul, KS 66079 | Oil Operator | Dec 2025 |
| 36 | D K Oil Services LLC | Wellsville, KS 66092 | Oil Operator | Nov 2019 |
| 37 | Denman J M Oil C | | Oil Operator | Mar 1994 |
| 38 | Diamond B Indust | | Oil Operator | Nov 1996 |
| 39 | Diamond B Miami Flood, LTD. | Paola, KS 66071 | Oil Operator | Dec 2025 |
| 40 | Diamond Star Oil, Inc. | Lacygne, KS 66040 | Oil Operator | Dec 2019 |
| 41 | Doudna, Mark A. | Osawatomie, KS 66064 | Oil Operator | Nov 2009 |
| 42 | Dunsmoor, David E. | Grand Junction, CO 81504 | Oil Operator | Jul 1998 |
| 43 | Dustin Enterprise | Olathe, KS 66062 | Oil Operator | Feb 1998 |
| 44 | Elb Enterprise LLC | | Oil Operator | Dec 2025 |
| 45 | Elkhound Resources Inc | Wellsville, KS 66092 | Oil Operator | Aug 1998 |
| 46 | Enerjex Kansas, Inc. | Leawood, KS 66211 | Oil & Gas Operator | Apr 2010 |
| 47 | Evans, Glenn A. | Paola, KS 66071 | Oil Operator | Oct 1989 |
| 48 | Flatland Energy, LLC | Gardner, KS 66030 | Oil Operator | Dec 2025 |
| 49 | Four Corners Oil, LLC | Cape Fair, MO 65624 | Oil Operator | Dec 2025 |
| 50 | Glacier Petroleu | | Oil & Gas Operator | Nov 1995 |
| 51 | Great Plains Pet | | Oil & Gas Operator | Mar 1995 |
| 52 | Green, Robert W | Ottawa, KS 66067 | Oil Operator | Nov 1987 |
| 53 | Greer Oil Compan | | Oil & Gas Operator | Jun 1988 |
| 54 | Guinotte Company LLC | Ottawa, KS 66067 | Oil Operator | Dec 2009 |
| 55 | Gustison Steven | | Oil Operator | Feb 1985 |
| 56 | H A L Petroleum | | Oil Operator | Oct 1987 |
| 57 | Haas John L | | Oil Operator | Dec 2009 |
| 58 | Haas Petroleum LLC | Prairie VIllage, KS 66208 | Oil Operator | Dec 2025 |
| 59 | Haas, Mark L. | Kansas City, MO 67112 | Oil Operator | Feb 2013 |
| 60 | HB Energy LLC | Wellsville, KS 66092 | Oil Operator | Dec 2025 |
| 61 | HB Oil Company | Abilene, TX 79602 | Oil & Gas Operator | Jun 2023 |
| 62 | HD Well Services LLC | Wellsville, KS 66092 | Oil Operator | Dec 2025 |
| 63 | Heger J J & Asso | | Oil Operator | Jun 1983 |
| 64 | Hermreck Oil Com | | Oil & Gas Operator | Aug 1996 |
| 65 | Hermreck Oil Company | | Oil Operator | Oct 2025 |
| 66 | Hodges & Hodges Oil Venture | Gallup, NM 87301 | Oil Operator | May 1999 |
| 67 | Hodges Oil | | Oil Operator | Dec 2025 |
| 68 | Hoehn Oil LLC | Wellsville, KS 66092 | Oil Operator | Dec 2025 |
| 69 | House, Dustin | Shawnee, KS 66218 | Oil Operator | Oct 2025 |
| 70 | Hughes Drilling Co Inc | Enid, OK 73702 | Oil & Gas Operator | Apr 1998 |
| 71 | Hughes Drilling Co, A General Partnership | Wellsville, KS 66092 | Oil Operator | Dec 2025 |
| 72 | Hughes Services, LLC | Wellsville, KS 66092 | Oil Operator | Dec 2025 |
| 73 | Humerickhouse Oil, LLC | Ottawa, KS 66067 | Oil Operator | Dec 2025 |
| 74 | Humerickhouse, Donald L. | Ottawa, KS 66067 | Oil Operator | Dec 2009 |
| 75 | J. C. Oil Company | Odessa, TX 79766 | Oil & Gas Operator | Mar 2015 |
| 76 | J. Herrick Pro | | Oil Operator | Nov 2025 |
| 77 | Jack W Sanders & Son, General Partnership | Wellsville, KS 66092 | Oil Operator | Nov 2025 |
| 78 | JBM Oil, LLC | Ottawa, KS 66067 | Oil Operator | Dec 2019 |
| 79 | Johnson Donald L | | Oil Operator | Dec 2009 |
| 80 | Johnson Oil Co., LLC | Buffalo, KS 66717 | Oil Operator | Dec 2025 |
| 81 | Johnson, Norman L. | Rantoul, KS 66079 | Oil Operator | Jan 2002 |
| 82 | JTC Oil Inc. | Louisburg, KS 66053 | Oil Operator | Dec 2025 |
| 83 | Justin Energy Corporation | Wellsville, KS 66092 | Oil Operator | Dec 2025 |
| 84 | K&M LLC | | Oil Operator | Nov 2025 |
| 85 | Kainz, David R. | Ottawa, KS 66067 | Oil Operator | Aug 2009 |
| 86 | Keyse, Ralph L. | Lane, KS 66042 | Oil Operator | Jul 2018 |
| 87 | Kramer Oil Field Service Inc | Wellsville, KS 66092 | Oil Operator | May 2019 |
| 88 | L & A Energy LP | | Oil Operator | Dec 2025 |
| 89 | L & M Oil Compan | | Oil & Gas Operator | Dec 1986 |
| 90 | Lamberd, Clayton | Olathe, KS 66061 | Oil Operator | Oct 2025 |
| 91 | Layton Glenn F J | | Oil Operator | Mar 1986 |
| 92 | Layton Oil Compa | | Oil & Gas Operator | Jul 1985 |
| 93 | Leach, Elwood | Osawatomie, KS 66064 | Oil Operator | Dec 2009 |
| 94 | Leis, VIctor J. | Paola, KS 66071 | Oil & Gas Operator | Dec 2025 |
| 95 | LH Oil, LLC | Ottawa, KS 66067 | Oil Operator | Dec 2025 |
| 96 | Logsdon Richard | | Oil Operator | Mar 1988 |
| 97 | Lone Wolf Oil LLC | Wellsville, KS 66092 | Oil Operator | Dec 2009 |
| 98 | M & C Oil Incorp | | Oil Operator | Mar 1995 |
| 99 | M. A. B. Production | | Oil Operator | Nov 2009 |
| 100 | Magnum Exploration Kansas, LLC | Lipan, TX 76462 | Oil Operator | Oct 2016 |