| 1 | B-F Oil Co. L.L.C. | Great Bend, KS 67530 | Oil Operator | Jun 2025 |
| 2 | Bandy Paul L | | Oil Operator | Nov 1996 |
| 3 | Bankoff Oil Comp | | Oil Operator | Jun 1995 |
| 4 | Barco Energy, Inc. | Great Bend, KS 67530 | Oil Operator | Jun 2001 |
| 5 | Bear Petroleum | | Oil & Gas Operator | Dec 1996 |
| 6 | Bear Petroleum LLC | Haysville, KS 67060 | Oil & Gas Operator | Jun 2025 |
| 7 | Becker Oil Corporation | Ponca City, OK 74602 | Oil & Gas Operator | Jun 2025 |
| 8 | Bell Oil Company | | Oil & Gas Operator | Oct 1985 |
| 9 | Bennett & Schulte Oil Co., A General Partnership | Russell, KS 67665 | Oil Operator | Jun 2025 |
| 10 | Bennett Oil Company, LLC | Russell, KS 67665 | Oil Operator | Jun 2025 |
| 11 | Benson Mineral G | | Oil & Gas Operator | Dec 1995 |
| 12 | Benson Mineral Group Inc | Denver, CO 80202 | Oil & Gas Operator | Apr 2022 |
| 13 | Beren Corporatio | | Oil & Gas Operator | Dec 1995 |
| 14 | Beren Corporation | Wichita, KS 67206 | Oil & Gas Operator | Oct 2025 |
| 15 | Berenergy Corporation | Denver, CO 80217 | Oil & Gas Operator | Aug 2025 |
| 16 | Berexco Inc. | Wichita, KS 67208 | Oil & Gas Operator | Oct 2009 |
| 17 | Berexco Incorpor | | Oil & Gas Operator | Dec 1996 |
| 18 | Berexco LLC | Wichita, KS 67206 | Oil & Gas Operator | Oct 2025 |
| 19 | Bergman Oil Comp | | Oil Operator | Mar 1995 |
| 20 | Bibs Oil Corpora | | Oil & Gas Operator | Apr 1987 |
| 21 | Bickle Energies LLC | Hays, KS 67601 | Oil Operator | Dec 2019 |
| 22 | Big 'O' | | Oil Operator | Jun 2025 |
| 23 | Big Horn Oil Co., Inc. | Great Bend, KS 67530 | Oil & Gas Operator | May 2013 |
| 24 | Biggy'S Petroleum | | Oil & Gas Operator | May 2025 |
| 25 | Bird Dog Oil, LLC | Denver, CO 80202 | Oil Operator | Jun 2025 |
| 26 | Black Dahlia Oil & Gas Co. | Glendale, CA 91208 | Oil Operator | Jun 2025 |
| 27 | Black Frank J | | Oil & Gas Operator | Jan 1994 |
| 28 | Black Rock Resources, LLC | Russell, KS 67665 | Oil Operator | Jun 2025 |
| 29 | Black Spot Oil Company, A General Partnership | Great Bend, KS 67530 | Oil Operator | Dec 2009 |
| 30 | Blackbird Oil Co. | Great Bend, KS 67530 | Oil Operator | Feb 1996 |
| 31 | Blackhawk Energy | | Oil Operator | Dec 1993 |
| 32 | Blackhawk Explor | | Oil Operator | Jan 1990 |
| 33 | Blueridge Petroleum Corporation | Edmond, OK 73003 | Oil & Gas Operator | Jun 2025 |
| 34 | Boger Brothers D | | Oil & Gas Operator | Nov 1992 |
| 35 | Boger Brothers O | | Oil Operator | Jul 1995 |
| 36 | Bolding Grady Co | | Oil & Gas Operator | Nov 1995 |
| 37 | Bonanza Oil Comp | | Oil Operator | Sep 1990 |
| 38 | Borell, Albert W. | Wilson, KS 67490 | Oil Operator | Jul 2005 |
| 39 | Borell, Elvern D. | Dighton, KS 67839 | Oil Operator | Dec 2009 |
| 40 | Bowen Oil & Expl | | Oil & Gas Operator | Apr 1993 |
| 41 | Boxberger Carl O | | Oil Operator | May 1994 |
| 42 | Boxberger, Carl Oil, Inc. | Great Bend, KS 67530 | Oil & Gas Operator | Dec 2009 |
| 43 | BP Exploration I | | Oil & Gas Operator | Oct 1994 |
| 44 | Brackeen Line Cleaning, Inc. | Claflin, KS 67525 | Oil Operator | Jun 2025 |
| 45 | Braden-Deem Inc | Wichita, KS 67226 | Oil & Gas Operator | Apr 2025 |
| 46 | Braden-Deem Inco | | Oil & Gas Operator | Nov 1994 |
| 47 | Bradford Pipe | | Oil Operator | Dec 1983 |
| 48 | Bramble Oil Company | Wichita, KS 67206 | Oil & Gas Operator | Mar 2007 |
| 49 | Brougher Oil, Inc. | Wichita, KS 67212 | Oil & Gas Operator | Apr 2002 |
| 50 | Broughton Oil | | Oil Operator | Nov 1985 |
| 51 | Brown Tom Constr | | Oil Operator | Dec 1995 |
| 52 | Bruce Oil Company, L.L.C. | McPherson, KS 67460 | Oil Operator | Jun 2025 |
| 53 | Bryant Investors, A General Partnership | Lyons, KS 67554 | Oil Operator | Oct 2009 |
| 54 | Bullseye Petroleum, Inc. | Wichita, KS 67230 | Oil Operator | Jun 2025 |