| 1 | Abercrombie A L | | Oil & Gas Operator | Nov 1995 |
| 2 | Abercrombie Drilling, Inc. | Wichita, KS 67202 | Oil Operator | May 1997 |
| 3 | Abercrombie Energy, LLC | Wichita, KS 67212 | Oil & Gas Operator | Sep 2025 |
| 4 | Ace Oil Company | | Oil Operator | Sep 2025 |
| 5 | Adam'S Gas Corporation, Inc. | Albert, KS 67511 | Gas Operator | Mar 2004 |
| 6 | Addis Family Tru | | Oil Operator | Apr 1992 |
| 7 | Afg Energy, Inc. | Houston, TX 77002 | Oil & Gas Operator | Dec 2009 |
| 8 | Airport Developm | | Gas Operator | Apr 1993 |
| 9 | Aladdin Petroleu | | Oil & Gas Operator | Nov 1995 |
| 10 | Alb, Inc. | Great Bend, KS 67530 | Oil Operator | Sep 2025 |
| 11 | Allen Drilling C | | Oil & Gas Operator | Nov 1994 |
| 12 | Allison Dean Oil | | Oil & Gas Operator | Nov 1994 |
| 13 | Alpine Drilling | | Oil & Gas Operator | May 1994 |
| 14 | Amber Oil Compan | | Oil Operator | Aug 1995 |
| 15 | American Energie | | Oil & Gas Operator | May 1995 |
| 16 | American Warrior | | Oil & Gas Operator | Sep 2025 |
| 17 | American Warrior Inc | Garden City, KS 67846 | Oil & Gas Operator | Nov 2025 |
| 18 | Amerkan Resource | | Oil Operator | Jan 1994 |
| 19 | Anderson Thornto | | Oil & Gas Operator | Mar 1995 |
| 20 | Anshutz Oil | | Oil Operator | Dec 2009 |
| 21 | Ap Operating LLC | Claflin, KS 67525 | Oil Operator | Jul 2025 |
| 22 | Apollo Energies Inc | Pratt, KS 67124 | Oil & Gas Operator | Sep 2025 |
| 23 | Arcadian Resources LLC | Glen Elder, KS 67446 | Oil & Gas Operator | Feb 2026 |
| 24 | Ardc Inc. | Hays, KS 67601 | Oil Operator | Sep 2025 |
| 25 | Argent Energy (Us) Holdings Inc | Sugar Land, TX 77479 | Oil & Gas Operator | Sep 2021 |
| 26 | Arrowhead Exploration, LLC | Hays, KS 67601 | Oil Operator | Sep 2025 |
| 27 | Arrowhead Petrol | | Oil & Gas Operator | Feb 1992 |
| 28 | Ash, Wiley R., Jr. | Andover, KS 67002 | Oil & Gas Operator | Mar 1990 |
| 29 | Asher Associates Inc | Centennial, CO 80112 | Oil & Gas Operator | Aug 2016 |
| 30 | Aspen Drilling C | | Oil & Gas Operator | Aug 1988 |
| 31 | Associated Oil & | | Oil Operator | Mar 1986 |
| 32 | Azkan Oil & Gas LLC | | Oil Operator | Jul 2024 |
| 33 | B-F Oil Co. L.L.C. | Great Bend, KS 67530 | Oil Operator | Sep 2025 |
| 34 | Bandy Paul L | | Oil Operator | Nov 1996 |
| 35 | Bankoff Oil Comp | | Oil Operator | Jun 1995 |
| 36 | Barco Energy, Inc. | Great Bend, KS 67530 | Oil Operator | Jun 2001 |
| 37 | Bear Petroleum | | Oil & Gas Operator | Dec 1996 |
| 38 | Bear Petroleum LLC | Haysville, KS 67060 | Oil & Gas Operator | Sep 2025 |
| 39 | Becker Oil Corporation | Ponca City, OK 74602 | Oil & Gas Operator | Nov 2025 |
| 40 | Bell Oil Company | | Oil & Gas Operator | Oct 1985 |
| 41 | Bennett & Schulte Oil Co., A General Partnership | Russell, KS 67665 | Oil Operator | Sep 2025 |
| 42 | Bennett Oil Company, LLC | Russell, KS 67665 | Oil Operator | Sep 2025 |
| 43 | Benson Mineral G | | Oil & Gas Operator | Dec 1995 |
| 44 | Benson Mineral Group, Inc. | Denver, CO 80202 | Oil & Gas Operator | Apr 2022 |
| 45 | Beren Corporatio | | Oil & Gas Operator | Dec 1995 |
| 46 | Beren Corporation | Wichita, KS 67206 | Oil & Gas Operator | Feb 2026 |
| 47 | Berenergy Corporation | Denver, CO 80217 | Oil & Gas Operator | Jan 2026 |
| 48 | Berexco Inc. | Wichita, KS 67208 | Oil & Gas Operator | Oct 2009 |
| 49 | Berexco Incorpor | | Oil & Gas Operator | Dec 1996 |
| 50 | Berexco LLC | Wichita, KS 67206 | Oil & Gas Operator | Feb 2026 |
| 51 | Bergman Oil Comp | | Oil Operator | Mar 1995 |
| 52 | Bibs Oil Corpora | | Oil & Gas Operator | Apr 1987 |
| 53 | Bickle Energies LLC | Hays, KS 67601 | Oil Operator | Dec 2019 |
| 54 | Big 'O' | | Oil Operator | Sep 2025 |
| 55 | Big Horn Oil Co Inc | Great Bend, KS 67530 | Oil & Gas Operator | May 2013 |
| 56 | Biggy'S Petroleum | | Oil & Gas Operator | Sep 2025 |
| 57 | Bird Dog Oil, LLC | Denver, CO 80202 | Oil Operator | Sep 2025 |
| 58 | Black Dahlia Oil & Gas Co. | Glendale, CA 91208 | Oil Operator | Sep 2025 |
| 59 | Black Frank J | | Oil & Gas Operator | Jan 1994 |
| 60 | Black Rock Resources, LLC | Russell, KS 67665 | Oil Operator | Sep 2025 |
| 61 | Black Spot Oil Company, A General Partnership | Great Bend, KS 67530 | Oil Operator | Dec 2009 |
| 62 | Blackbird Oil Co. | Great Bend, KS 67530 | Oil Operator | Feb 1996 |
| 63 | Blackhawk Energy | | Oil Operator | Dec 1993 |
| 64 | Blackhawk Explor | | Oil Operator | Jan 1990 |
| 65 | Blueridge Petroleum Corporation | Edmond, OK 73003 | Oil & Gas Operator | Sep 2025 |
| 66 | Boger Brothers D | | Oil & Gas Operator | Nov 1992 |
| 67 | Boger Brothers O | | Oil Operator | Jul 1995 |
| 68 | Bolding Grady Co | | Oil & Gas Operator | Nov 1995 |
| 69 | Bonanza Oil Comp | | Oil Operator | Sep 1990 |
| 70 | Borell, Albert W. | Wilson, KS 67490 | Oil Operator | Jul 2005 |
| 71 | Borell, Elvern D. | Dighton, KS 67839 | Oil Operator | Dec 2009 |
| 72 | Bowen Oil & Expl | | Oil & Gas Operator | Apr 1993 |
| 73 | Boxberger Carl O | | Oil Operator | May 1994 |
| 74 | Boxberger, Carl Oil, Inc. | Great Bend, KS 67530 | Oil & Gas Operator | Dec 2009 |
| 75 | BP Exploration I | | Oil & Gas Operator | Oct 1994 |
| 76 | Brackeen Line Cleaning, Inc. | Claflin, KS 67525 | Oil Operator | Aug 2025 |
| 77 | Braden-Deem Inc | Wichita, KS 67226 | Oil & Gas Operator | Oct 2025 |
| 78 | Braden-Deem Inco | | Oil & Gas Operator | Nov 1994 |
| 79 | Bradford Pipe | | Oil Operator | Dec 1983 |
| 80 | Bramble Oil Company | Wichita, KS 67206 | Oil & Gas Operator | Mar 2007 |
| 81 | Brougher Oil, Inc. | Wichita, KS 67212 | Oil & Gas Operator | Apr 2002 |
| 82 | Broughton Oil | | Oil Operator | Nov 1985 |
| 83 | Brown Tom Constr | | Oil Operator | Dec 1995 |
| 84 | Bruce Oil Company, LLC | McPherson, KS 67460 | Oil Operator | Sep 2025 |
| 85 | Bryant Investors, A General Partnership | Lyons, KS 67554 | Oil Operator | Oct 2009 |
| 86 | Bullseye Petroleum, Inc. | Wichita, KS 67230 | Oil Operator | Aug 2025 |
| 87 | C & K Operating LLC | Kingman, KS 67068 | Oil & Gas Operator | Sep 2025 |
| 88 | C & S Oil Company, LLC | Russell, KS 67665 | Oil Operator | Sep 2025 |
| 89 | C G Oil, Inc. | Victoria, KS 67671 | Oil Operator | Sep 2025 |
| 90 | C K Oil Company | Great Bend, KS 67530 | Oil & Gas Operator | Sep 2025 |
| 91 | Caerus Kansas LLC | Denver, CO 80202 | Oil & Gas Operator | Sep 2025 |
| 92 | Cain, Jim | Great Bend, KS 67530 | Oil Operator | Feb 2009 |
| 93 | Cambern, Rex | Montgomery, TX 77356 | Oil Operator | Jan 1996 |
| 94 | Cambria Corporation | Great Bend, KS 67530 | Oil & Gas Operator | Dec 2019 |
| 95 | Canaday Oil Corp | Goddard, KS 67052 | Oil & Gas Operator | Sep 2025 |
| 96 | Carmen Schmitt, Inc. | Great Bend, KS 67530 | Oil & Gas Operator | Sep 2025 |
| 97 | Carrie Exploration & Development, LLC | Hays, KS 67601 | Oil & Gas Operator | Dec 2019 |
| 98 | Cascade Oil Comp | | Oil & Gas Operator | Dec 1994 |
| 99 | Casino Petroleum | | Oil Operator | Dec 1996 |
| 100 | Castle Resources, Inc. | Russell, KS 67665 | Oil & Gas Operator | Sep 2025 |