| 1 | Altavista Energy, Inc. | Wellsville, KS 66092 | Oil Operator | Jun 2025 |
| 2 | Amoco Production | | Oil & Gas Operator | Jun 2012 |
| 3 | Bailey Sharon | Centerville, KS 66014 | Oil Operator | Sep 1997 |
| 4 | Ballou Oil Well Service | | Oil Operator | Jun 2025 |
| 5 | Blanchard, James R. | Paola, KS 66071 | Oil Operator | Nov 2015 |
| 6 | Bobcat Oilfield Service, Inc. | Louisburg, KS 66053 | Oil Operator | Jun 2025 |
| 7 | Bobcat Oilfield Services, Inc. | | Oil Operator | Dec 2009 |
| 8 | Bomber Oil Inc. | Parker, KS 66072 | Oil Operator | Oct 2022 |
| 9 | Brecheisen Oil C | | Oil & Gas Operator | Sep 1993 |
| 10 | Brennco Gas Transmission, Inc. | Overland Park, KS 66282 | Gas Operator | Apr 2009 |
| 11 | C & E Prod Incor | | Oil Operator | Nov 1996 |
| 12 | Cherokee Valley | | Oil Operator | May 1993 |
| 13 | Cinab, Inc. | FT. Scott, KS 66701 | Oil Operator | Jan 1998 |
| 14 | Clinton, Orville L., Jr. | Paola, KS 66071 | Oil Operator | Apr 2005 |
| 15 | Coen Energy | | Oil Operator | Mar 1995 |
| 16 | Coen Energy Corporation | Overland Park, KS 66221 | Oil Operator | Jun 2025 |
| 17 | Colt Energy Inc | Iola, KS 66749 | Oil & Gas Operator | Jun 2025 |
| 18 | Cornell Rich M - | | Oil & Gas Operator | May 1993 |
| 19 | Crude Kin Oil Company, Inc. | Louisburg, KS 66053 | Oil Operator | Jun 2025 |
| 20 | D & T Oil Company | Hays, KS 67601 | Oil Operator | Jun 2025 |
| 21 | Dale E. Jackson Production Co. | | Oil Operator | Jun 2025 |
| 22 | Derrick Petroleu | | Oil Operator | Sep 1994 |
| 23 | Diamond B Indust | | Oil Operator | Nov 1996 |
| 24 | E K Energy LLC | Colony, KS 66015 | Oil Operator | Jun 2025 |
| 25 | G & G Oil Compan | | Oil Operator | Sep 1993 |
| 26 | Hat Production LLC | Mound City, KS 66056 | Oil Operator | May 2025 |
| 27 | Hillenburg Oil C | | Oil Operator | Apr 1994 |
| 28 | I & F Oil And Farm | | Oil & Gas Operator | Dec 2009 |
| 29 | J & J Oil, A General Partnership | Mound City, KS 66056 | Oil Operator | Dec 2019 |
| 30 | J M K Incorporat | | Oil & Gas Operator | Dec 1996 |
| 31 | J&S Jackson Oil | | Oil Operator | Jun 2025 |
| 32 | Jackson, Ethan | Mapleton, KS 66754 | Oil Operator | May 2025 |
| 33 | JTC Oil Inc. | Louisburg, KS 66053 | Oil Operator | Jun 2025 |
| 34 | Justin Energy Corporation | Wellsville, KS 66092 | Oil Operator | Jun 2025 |
| 35 | K C Crude Incorp | | Oil & Gas Operator | Mar 1994 |
| 36 | Kansas Resource Exploration & Development, LLC | Overland Park, KS 66202 | Oil Operator | Jun 2025 |
| 37 | Kent, Cameron J | Garnett, KS 66032 | Oil Operator | May 2025 |
| 38 | Kent, VInce J | Garnett, KS 66032 | Oil Operator | Oct 2002 |
| 39 | M & M Oil Company | Monahans, TX 79756 | Oil & Gas Operator | Jun 2025 |
| 40 | M.A.E. Resources, Inc. | Parker, KS 66072 | Oil Operator | Sep 2011 |
| 41 | McGown Drilling | | Oil Operator | Apr 1993 |
| 42 | McGown Drilling, Inc. | Mound City, KS 66056 | Oil Operator | Jun 2025 |
| 43 | Moylan, Thomas F. | Lacygne, KS 66040 | Oil & Gas Operator | Dec 1993 |
| 44 | Nickell & Son Oil & Salvage | Parker, KS 66072 | Oil Operator | Aug 2006 |
| 45 | Nickell Drilling | | Oil Operator | Jun 2010 |
| 46 | Oaks Petroleum I | | Oil Operator | Jul 1987 |
| 47 | Odyssey Petroleum, Inc. | Overland Park, KS 66282 | Oil & Gas Operator | Apr 2009 |
| 48 | Osci Oil And Gas, Inc. | Parker, KS 66072 | Oil Operator | Jun 1998 |
| 49 | Peoples Oil, LLC | Ottawa, KS 66067 | Oil Operator | Jun 2025 |
| 50 | Peterson Oil Co LLC | Centerville, KS 66014 | Oil Operator | Jun 2025 |
| 51 | Pharyn Resources, LLC | Lenexa, KS 66219 | Oil Operator | Jun 2009 |
| 52 | R - J Enterprises | Farmington, NM 874990051 | Oil Operator | Mar 2021 |
| 53 | Red Bear Drillin | | Oil & Gas Operator | Sep 1992 |
| 54 | Reese Exploratio | | Oil & Gas Operator | Mar 1995 |
| 55 | Reynolds Oil Company | | Oil Operator | Nov 2005 |
| 56 | RJ Energy, LLC | Garnett, KS 66032 | Oil Operator | Jun 2025 |
| 57 | Rolling Meadows Oil & Gas Development, LLC | Centerville, KS 66014 | Oil Operator | Jun 2025 |
| 58 | Running Foxes Petroleum Inc. | Centennial, CO 80112 | Oil & Gas Operator | Jun 2025 |
| 59 | Russell James E | | Oil Operator | Apr 1994 |
| 60 | Samuel Jackson Production Co | | Oil Operator | Jun 2025 |
| 61 | Scheuneman, Lester | Ridgeway, MO 64481 | Oil Operator | May 2019 |
| 62 | Shelton, Robert | Lacygne, KS 66040 | Oil Operator | Nov 2024 |
| 63 | Tenex Oil Corpor | | Oil Operator | May 1991 |
| 64 | Texokan Energy C | | Oil Operator | Nov 1986 |
| 65 | Thornberry Family Partnership LTD. | New Waverly, TX 77358 | Oil Operator | Jun 2025 |
| 66 | Thunderbolt Construction Corp. | Louisburg, KS 66053 | Oil Operator | Oct 2024 |
| 67 | Town Oil Co. | Paola, KS 66071 | Oil & Gas Operator | May 2025 |
| 68 | Triple T Oil, LLC | Louisburg, KS 66053 | Oil Operator | Jun 2025 |
| 69 | Unknown | Houston, TX 77208 | Oil & Gas Operator | Dec 2023 |
| 70 | Uranus, Inc. | Kansas City, MO 64112 | Oil Operator | Jan 2000 |
| 71 | Vast Petroleum Of Kansas LLC | Bozeman, MT 59715 | Oil Operator | Dec 2009 |
| 72 | Viva International, Inc. | Overland Park, KS 66207 | Oil Operator | Jun 2023 |
| 73 | Watson, Ben | Blue Mound, KS 66010 | Oil Operator | Oct 2008 |
| 74 | WD Oil Company I | | Oil Operator | Apr 1986 |
| 75 | Westport Petrole | | Oil Operator | Feb 1985 |
| 76 | William G Smith Oil, LLC | Osawatomie, KS 66064 | Oil Operator | Apr 2014 |
| 77 | Wollard-Abbott Crude, A General Partnership | Parker, KS 66072 | Oil Operator | May 2008 |
| 78 | Xenia Corporation, The | Garnett, KS 66032 | Oil Operator | Jan 2001 |