| 101 | Forbes Harold G | | Oil Operator | Dec 1984 |
| 102 | Fossil Resources LLC | Hays, KS 67601 | Oil Operator | Dec 2024 |
| 103 | Four-Way Oper In | | Oil Operator | Aug 1994 |
| 104 | Foxfire Explorat | | Oil Operator | Dec 1986 |
| 105 | Fritzler Trucking, Inc. | Ness City, KS 67560 | Oil Operator | Sep 2007 |
| 106 | Froelich Oil | | Oil Operator | Apr 2010 |
| 107 | G And T Petroleum Consulting And Management | McCracken, KS 67556 | Oil Operator | Aug 2014 |
| 108 | G L M Company | | Oil Operator | Dec 2024 |
| 109 | G-D Oil Oper - D | | Oil Operator | Apr 1990 |
| 110 | G-D Oil Operations | | Oil Operator | May 1997 |
| 111 | G.A.B.S. Oil, A General Partnership | Ness City, KS 67560 | Oil Operator | Aug 2008 |
| 112 | Gateway Resources, LLC | Wichita, KS 67218 | Oil Operator | Dec 2024 |
| 113 | Gerstner, Joe | Ness City, KS 67560 | Oil Operator | Mar 2016 |
| 114 | Graham-Michaelis | | Oil & Gas Operator | Nov 1996 |
| 115 | Grand Mesa Operating Co | Wichita, KS 67206 | Oil & Gas Operator | Mar 2025 |
| 116 | Great Plains Petroleum, Inc. | Snyder, TX 79549 | Oil & Gas Operator | Dec 2024 |
| 117 | H & B Petroleum Corp. | Hutchinson, KS 67504 | Oil & Gas Operator | Dec 2024 |
| 118 | H & C Oil Operat | | Oil & Gas Operator | Dec 1996 |
| 119 | H & C Oil Operating Inc. | Plainville, KS 67663 | Oil & Gas Operator | Dec 2024 |
| 120 | H & W Oil Corpor | | Oil Operator | Dec 1996 |
| 121 | H-D Oilfield Service, Inc. | Bazine, KS 67516 | Oil Operator | Dec 2024 |
| 122 | Hansen Dane G TR | | Oil Operator | Feb 1995 |
| 123 | Har-Ken Agent, Ok | Owensboro, KY 42302 | Oil Operator | Dec 2024 |
| 124 | Hartman Oil Company Inc | Wichita, KS 67206 | Oil & Gas Operator | Dec 2024 |
| 125 | Helmerich & Payn | | Oil & Gas Operator | Aug 1995 |
| 126 | Hembree Robert F | | Oil Operator | Dec 2009 |
| 127 | Herman L. Loeb, LLC | Lawrenceville, IL 62439 | Oil & Gas Operator | Dec 2024 |
| 128 | Hess Oil Company | McPherson, KS 67460 | Oil & Gas Operator | Dec 2024 |
| 129 | HG Oil Holdings, LLC | Hoisington, KS 67544 | Oil & Gas Operator | Dec 2024 |
| 130 | High Plains Oil | | Oil Operator | Jun 1989 |
| 131 | Hillenburg Oil C | | Oil Operator | Apr 1994 |
| 132 | Hoffman Oil, Inc. | Claflin, KS 67525 | Oil Operator | Dec 2024 |
| 133 | Honey Oil Co | Wichita, KS 67226 | Oil & Gas Operator | Mar 2009 |
| 134 | Huber J M Corp | Edison, NJ 08837 | Oil & Gas Operator | Apr 2025 |
| 135 | Hummon Corp. | Medicine Lodge, KS 67104 | Oil & Gas Operator | Apr 2023 |
| 136 | Impact Energy Operating LLC | Oklahoma City, OK 73172 | Oil & Gas Operator | Feb 2025 |
| 137 | Indian Oil Company | Gainesville, TX 76241 | Oil & Gas Operator | Apr 2025 |
| 138 | Ipas Oil Company LLC | Pratt, KS 67124 | Oil Operator | Dec 2019 |
| 139 | Jason Oil Compan | | Oil Operator | Sep 1992 |
| 140 | Jason Oil Company | | Oil Operator | Dec 2014 |
| 141 | Jason Oil Company, LLC | Russell, KS 67665 | Oil Operator | Dec 2024 |
| 142 | Jo-Allyn Oil Co Inc | Laverne, OK 73848 | Oil & Gas Operator | Feb 2025 |
| 143 | Joe Gerstner Oil, LLC | Ness City, KS 67560 | Oil Operator | Dec 2024 |
| 144 | John O. Farmer, Inc. | | Oil & Gas Operator | Dec 1996 |
| 145 | Jones G R Oil & | | Oil & Gas Operator | Nov 1993 |
| 146 | K & E Drilling, Inc | Wichita, KS 67202 | Oil & Gas Operator | Dec 2024 |
| 147 | K & E Petroleum | | Oil & Gas Operator | Jan 1995 |
| 148 | K & E Petroleum, Inc. | San Antonio, TX 78230 | Oil & Gas Operator | Apr 2012 |
| 149 | Kaiser-Francis O | | Oil & Gas Operator | Oct 1995 |
| 150 | Kaiser-Francis Oil | | Oil Operator | Nov 1995 |
| 151 | Kansas Oil Prope | | Oil & Gas Operator | Sep 1991 |
| 152 | Kansas Petroleum | | Oil & Gas Operator | Dec 1993 |
| 153 | Kiwanda Energy, Inc. | Denver, CO 80202 | Oil & Gas Operator | Jan 2008 |
| 154 | Kiwanda Resc Inc | | Oil & Gas Operator | Aug 1993 |
| 155 | KN Production Co. | Lakewood, CO 80228 | Oil & Gas Operator | Jun 2003 |
| 156 | Koch Exploration Company | Houston, TX 77046 | Oil & Gas Operator | Dec 2024 |
| 157 | L & F Oil Operat | | Oil Operator | Sep 1987 |
| 158 | L. D. Drilling, Inc. | Great Bend, KS 67530 | Oil & Gas Operator | Dec 2024 |
| 159 | Landmark Oil Exp | | Oil Operator | Sep 1994 |
| 160 | Landmark Resources, Inc. | Houston, TX 77056 | Oil & Gas Operator | Dec 2024 |
| 161 | Lansing Energy C | | Oil Operator | Jun 2006 |
| 162 | Larson Operating | | Oil & Gas Operator | Mar 2001 |
| 163 | Larson Operating Company | Olmitz, KS 67564-8561 | Oil & Gas Operator | Dec 2019 |
| 164 | Lasmo Energy Cor | | Oil Operator | Feb 1990 |
| 165 | Lauck D R Oil Co | | Oil & Gas Operator | Oct 1995 |
| 166 | Lazer Petroleum | | Oil Operator | Jan 1993 |
| 167 | Leben Corp. | Wichita, KS 67202 | Oil & Gas Operator | Dec 2011 |
| 168 | Leben Oil Corpor | | Oil & Gas Operator | Apr 1991 |
| 169 | Lee Phillips Oil Company | | Oil Operator | Dec 2024 |
| 170 | Leiker, Edward P. | Hays, KS 67601 | Oil Operator | Apr 1992 |
| 171 | Liberty Enterpri | | Oil Operator | Jan 1987 |
| 172 | Lutz, Lisa Morgan | Fayetteville, AR 72702 | Oil Operator | Dec 2024 |
| 173 | Lutz, Scott T. Trust | Fayetteville, AR 72702 | Oil Operator | Mar 2011 |
| 174 | Lutz, Scott Thomas, Estate Of | Fayetteville, AR 72703 | Oil Operator | Aug 1996 |
| 175 | Lutz, Thomas C. | | Oil Operator | Dec 2009 |
| 176 | Mack Energy Co. | Duncan, OK 73534 | Oil & Gas Operator | Feb 2025 |
| 177 | Mack Energy Comp | | Oil & Gas Operator | Nov 1994 |
| 178 | Mad Operators LLC | | Oil & Gas Operator | Dec 2024 |
| 179 | Magnum Oil & Gas | Flower Mound, TX 75028 | Oil & Gas Operator | Jul 2000 |
| 180 | Mai Oil Operations, Inc. | Dallas, TX 75225 | Oil & Gas Operator | Dec 2024 |
| 181 | Manuel Corporation | Wichita, KS 67206 | Oil & Gas Operator | Feb 2025 |
| 182 | Mar-Lou Oil Co., LLC | Wilson, KS 67490 | Oil Operator | Dec 2024 |
| 183 | Marathon Oil Com | | Oil & Gas Operator | Dec 1996 |
| 184 | Marmik Oil Compa | | Oil Operator | Jun 1995 |
| 185 | Martin Oil Produ | | Oil & Gas Operator | Dec 1994 |
| 186 | Martin Oil Producers, Inc. | Garland, TX 75046 | Oil & Gas Operator | Aug 2013 |
| 187 | Mays Oil LLC | | Oil Operator | Apr 2021 |
| 188 | McCoy Petroleum Corporation | Wichita, KS 67207 | Oil & Gas Operator | Mar 2025 |
| 189 | McGinness Oil Co | Wichita, KS 67202 | Oil & Gas Operator | Dec 2019 |
| 190 | Medicine Bow Operating Company | Houston, TX 77002 | Oil & Gas Operator | Apr 2014 |
| 191 | Mem Partnership LP, A General Partnership | Spring, TX 77393 | Oil Operator | Dec 2024 |
| 192 | Michael D. Weilert Oil Company | | Oil Operator | Dec 2024 |
| 193 | Mid Con Energy Corporation | Fort Scott, KS 66701 | Oil Operator | Dec 2009 |
| 194 | Mid Continent Resources, Inc. | Houston, TX 77060 | Oil & Gas Operator | Apr 2025 |
| 195 | Mid-Continent En | | Oil & Gas Operator | Nov 1995 |
| 196 | Mid-Continent Energy Corp. | Wichita, KS 67208 | Oil & Gas Operator | Dec 2024 |
| 197 | Mike Kelso Oil, Inc. | Chase, KS 67524 | Oil & Gas Operator | Dec 2024 |
| 198 | Mishler Oil | | Oil Operator | May 1989 |
| 199 | Morrison-Dixon O | | Oil Operator | Oct 1993 |
| 200 | Mull Drilling Company | Wichita, KS 67206 | Oil & Gas Operator | Feb 2025 |