| 1 | A & A Well Service | Kincaid, KS 66039 | Oil Operator | Jun 2025 |
| 2 | Admiral Bay (USA) Inc. | Centennial, CO 80112 | Gas Operator | Jun 2011 |
| 3 | Alco DRLG. Co. | Freer, TX 78357 | Oil & Gas Operator | Dec 2025 |
| 4 | Bollinger, Jerald | Chanute, KS 66720 | Oil Operator | Dec 2024 |
| 5 | C & H Energy LLC | Blue Mound, KS 66010 | Oil Operator | Nov 2009 |
| 6 | Chriestenson Oil LLC | Neosho Falls, KS 66758 | Oil Operator | Jun 2025 |
| 7 | Coen Energy Corporation | Overland Park, KS 66221 | Oil Operator | Jun 2025 |
| 8 | Colt Energy Inco | | Oil & Gas Operator | Dec 1996 |
| 9 | Colt Oil Company | Andrews, TX 79714 | Oil & Gas Operator | Feb 1996 |
| 10 | Conley, Harry | Colony, KS 66015 | Oil Operator | Jun 2025 |
| 11 | D & T Oil Company | Hays, KS 67601 | Oil Operator | Jun 2025 |
| 12 | Dale E. Jackson Production Co. | | Oil Operator | Jun 2025 |
| 13 | Daniels Petroleu | | Oil Operator | Jan 1991 |
| 14 | Derrick Petroleu | | Oil Operator | Sep 1994 |
| 15 | Erbert Don Oil C | | Oil Operator | May 1993 |
| 16 | Evans Oil D W - | | Oil Operator | Mar 1992 |
| 17 | Evans Oil Inc. | Lebo, KS 66856 | Oil Operator | Jun 2025 |
| 18 | Exodus Gas & Oil LLC | Houston, TX 77002 | Oil & Gas Operator | Jan 2024 |
| 19 | Fewins, Gary D. | Moran, KS 66755 | Oil Operator | Jul 2019 |
| 20 | Fort Scott Methane Partners, LCC | Denver, CO 80218 | Gas Operator | Dec 2014 |
| 21 | Franklin Calvin | | Oil Operator | Aug 1995 |
| 22 | G & G Oil Compan | | Oil Operator | Sep 1993 |
| 23 | Grand Mesa Operating Company | Wichita, KS 67206 | Oil & Gas Operator | Sep 2025 |
| 24 | Hat Production LLC | Mound City, KS 66056 | Oil Operator | May 2025 |
| 25 | Hillenburg Oil C | | Oil Operator | Apr 1994 |
| 26 | Hodges Oil | | Oil Operator | Jun 2025 |
| 27 | Hughes Drilling Co, A General Partnership | Wellsville, KS 66092 | Oil Operator | Jun 2025 |
| 28 | Integrated Petroleum Corporation | Denver, CO 80202 | Oil Operator | Jan 2010 |
| 29 | J-V Oil, LLC | Chanute, KS 66720 | Oil & Gas Operator | Jun 2025 |
| 30 | Jackson, Joshua And Reacreisha | Mapleton, KS 66754 | Oil Operator | Jun 2025 |
| 31 | Jaxco Energy, A General Partnership | Garnett, KS 66032 | Oil Operator | May 2025 |
| 32 | Jayhawk Energy, Inc. | Spokane, WA 99202 | Oil & Gas Operator | May 2016 |
| 33 | Johnson County A | | Gas Operator | Dec 1986 |
| 34 | Kan-Texco Incorp | | Oil & Gas Operator | Dec 1994 |
| 35 | Keys Gerald W Oi | | Oil Operator | Mar 1993 |
| 36 | King Energy Co. | | Oil Operator | Nov 2019 |
| 37 | Landowner | Honolulu, HI | Oil & Gas Operator | Dec 2008 |
| 38 | Lee Donna Oil Co | | Oil & Gas Operator | Dec 1996 |
| 39 | Lone Jack Oil Co. | | Oil Operator | Jun 2025 |
| 40 | Lorenz, Barton T. | Cherryvale, KS 67335 | Oil & Gas Operator | Jul 2013 |
| 41 | Macha Enterprises, Inc. | Wichita Falls, TX 76309 | Oil Operator | Dec 2025 |
| 42 | Mapleton Gas Pipeline, Inc. | Mapleton, KS 66754 | Gas Operator | Jun 2011 |
| 43 | McGown Drilling, Inc. | Mound City, KS 66056 | Oil Operator | Jun 2025 |
| 44 | Monarch Energy LLC | Paola, KS 66071 | Oil Operator | Jun 2025 |
| 45 | MSG Resources Inc. | Iola, KS 66749 | Oil Operator | Jun 2025 |
| 46 | N & B Enterprise | | Oil Operator | Nov 1994 |
| 47 | Norstar Petroleum Inc | Englewood, CO 80112 | Oil & Gas Operator | Jun 2025 |
| 48 | Owens Oil | | Oil Operator | Dec 2000 |
| 49 | Petro Valley Ser | | Gas Operator | Dec 1986 |
| 50 | R - J Enterprises | Farmington, NM 874990051 | Oil Operator | Mar 2021 |
| 51 | Reese Exploratio | | Oil & Gas Operator | Mar 1995 |
| 52 | Reese Oil Company | Raytown, MO 64133 | Oil Operator | Jan 1999 |
| 53 | Rhodes Well Service | | Oil Operator | Jun 2025 |
| 54 | Riveria Drilling | | Oil Operator | Aug 1984 |
| 55 | RJ Energy, LLC | Garnett, KS 66032 | Oil Operator | Jun 2025 |
| 56 | Rocky Road Oil Company | | Oil Operator | May 2024 |
| 57 | Running Foxes Petroleum Inc. | Centennial, CO 80112 | Oil & Gas Operator | Jun 2025 |
| 58 | S & K Oil Production, Inc. | Blue Mound, KS 66010 | Oil Operator | Jun 2025 |
| 59 | See Oil | | Oil Operator | Jun 2025 |
| 60 | Snyder K E Compa | | Oil Operator | Jul 1987 |
| 61 | T-R Oil | Mapleton, KS 66754 | Oil & Gas Operator | May 2018 |
| 62 | Unknown | Houston, TX 77208 | Oil & Gas Operator | Dec 2023 |
| 63 | Veenker Resources Inc | Oklahoma City, OK 73113 | Oil & Gas Operator | Sep 2025 |
| 64 | Westport Oil Com | | Oil Operator | Feb 1994 |
| 65 | Xenia Corporation, The | Garnett, KS 66032 | Oil Operator | Jan 2001 |