| 101 | M & G Oil Inc | Russell, KS 67665 | Oil Operator | Dec 2025 |
| 102 | M E Klein & Associates, Inc. | Norman, OK 73070 | Oil & Gas Operator | Dec 2025 |
| 103 | Mad Operators LLC | | Oil & Gas Operator | Dec 2025 |
| 104 | Mai Oil Operations, Inc. | Dallas, TX 75225 | Oil & Gas Operator | Dec 2025 |
| 105 | Manuel Corporation | Wichita, KS 67206 | Oil & Gas Operator | Feb 2026 |
| 106 | Mar-Lou Oil Co., LLC | Wilson, KS 67490 | Oil Operator | Dec 2025 |
| 107 | Marathon Oil Com | | Oil & Gas Operator | Dec 1996 |
| 108 | Marexco, Inc. | Castle Rock, CO 80104 | Oil & Gas Operator | Dec 2025 |
| 109 | Meridian Energy Inc. | | Oil Operator | Dec 2025 |
| 110 | Mica Energy Corp | Lincoln, NE 68516 | Oil & Gas Operator | Dec 2010 |
| 111 | Mid-Con Energy Operating, LLC | Tulsa, OK 74136 | Oil & Gas Operator | Feb 2026 |
| 112 | MLT Energy, LLC | Derby, KS 67037 | Oil Operator | Feb 2026 |
| 113 | Mull Drilling Company | Wichita, KS 67206 | Oil & Gas Operator | Jan 2026 |
| 114 | Murfin Drilling | | Oil & Gas Operator | Jul 1997 |
| 115 | Murfin Drilling Company, Inc. | Wichita, KS 67202 | Oil & Gas Operator | Feb 2026 |
| 116 | Mustang Energy Corporation | Hays, KS 67601 | Oil Operator | Dec 2025 |
| 117 | National Oil Com | | Oil & Gas Operator | Oct 1992 |
| 118 | National Oil Company | Garden City, KS 67846 | Oil & Gas Operator | Jun 2024 |
| 119 | Norstar Petroleum Inc | Englewood, CO 80112 | Oil & Gas Operator | Dec 2025 |
| 120 | Opco LLC | Chase, KS 67524 | Oil Operator | Dec 2019 |
| 121 | Oxy USA Inc | Houston, TX 77046 | Oil & Gas Operator | Apr 2026 |
| 122 | Palomino Petrole | | Oil & Gas Operator | Dec 1995 |
| 123 | Palomino Petroleum Inc | Newton, KS 67114 | Oil & Gas Operator | Dec 2025 |
| 124 | Patterson Energy LLC | Hays, KS 67601 | Oil & Gas Operator | Dec 2025 |
| 125 | Paul Bowman Oil Trust | Codell, KS 67663 | Oil Operator | Dec 2025 |
| 126 | Pet-Ex Inc | Oklahoma City, OK 73102 | Oil & Gas Operator | Dec 2025 |
| 127 | Petex Incorporat | | Oil Operator | Sep 1991 |
| 128 | Petroleum Property Services, Inc. | Wichita, KS 67202 | Oil & Gas Operator | Dec 2025 |
| 129 | Petropro Petroleum LLC | | Oil Operator | Dec 2025 |
| 130 | Phillips Petroleum Company | Houston, TX 77251 | Oil & Gas Operator | Mar 2013 |
| 131 | Pickrell Drilling Co., Inc. | Wichita, KS 67213 | Oil & Gas Operator | Dec 2025 |
| 132 | Pintail Petroleu | | Oil & Gas Operator | Dec 1995 |
| 133 | Pintail Petroleum, LTD. | Wichita, KS 67202 | Oil & Gas Operator | Apr 2021 |
| 134 | Pioneer Feedyard, LLC | Oakley, KS 67748 | Oil Operator | Dec 2025 |
| 135 | Pioneer Resources | Jefferson, CO 80456 | Oil Operator | Dec 2009 |
| 136 | Pioneer Resources Inc | Phillipsburg, KS 67661 | Oil & Gas Operator | Oct 2020 |
| 137 | Plum Creek Energy, LLC | Ellinwood, KS 67526 | Oil & Gas Operator | Dec 2025 |
| 138 | Presley Operating LLC | Oklahoma City, OK 73102 | Oil & Gas Operator | Feb 2026 |
| 139 | Prospect Oil & Gas Corp | Russell, KS 67665 | Oil Operator | Dec 2025 |
| 140 | Questa Energy Corporation | Amarillo, TX 79159 | Oil & Gas Operator | Apr 2026 |
| 141 | Rains & Williamson Oil Co Inc | Wichita, KS 67277 | Oil & Gas Operator | Dec 2025 |
| 142 | Raymond Oil Co., Inc. | Wichita, KS 67201 | Oil & Gas Operator | Dec 2025 |
| 143 | Reach Petroleum | | Oil & Gas Operator | Jan 1994 |
| 144 | Red Hills Energy, LLC | Medicine Lodge, KS 67104 | Oil & Gas Operator | Dec 2025 |
| 145 | Richland Oil Investments, LLC | Palco, KS 67657 | Oil Operator | Dec 2025 |
| 146 | Ritchie Exploration, Inc. | Wichita, KS 67278 | Oil & Gas Operator | Dec 2025 |
| 147 | RL Investment, LLC | Hill City, KS 67642 | Oil Operator | Dec 2025 |
| 148 | Robinowitz Oil C | | Oil Operator | Dec 1996 |
| 149 | Russell Oil, Inc. | Edmond, OK 73083 | Oil Operator | Dec 2025 |
| 150 | S & J Oil | Hays, KS 67601 | Oil Operator | Feb 2002 |
| 151 | Sabre Exploratio | | Oil Operator | Oct 1988 |
| 152 | Scheck Oil Operation | | Oil & Gas Operator | Dec 2025 |
| 153 | Shakespeare Oil Co Inc | Salem, IL 62881 | Oil & Gas Operator | Jan 2026 |
| 154 | Shields Oil Producers Inc. | Russell, KS 67665 | Oil Operator | Dec 2025 |
| 155 | Slawson Donald C | Wichita, KS 67202 | Oil & Gas Operator | Oct 2025 |
| 156 | Slawson Explorat | | Oil & Gas Operator | Dec 1996 |
| 157 | Stanlee Oil LLC | | Oil Operator | Dec 2025 |
| 158 | Stratakan Exploration, LLC | Plainville, KS 67663 | Oil & Gas Operator | Dec 2025 |
| 159 | Sunburst Explora | | Oil Operator | May 1990 |
| 160 | T & D Oil Co. | Victoria, KS 67671 | Oil Operator | Apr 1996 |
| 161 | T & D Oil Compan | | Oil Operator | Jan 1992 |
| 162 | Talon Group LLC | Hays, KS 67601 | Oil Operator | Dec 2025 |
| 163 | Thunderbird Dril | | Oil & Gas Operator | Nov 1995 |
| 164 | Thunderbird Drilling, Inc. | Wichita, KS 67207 | Oil Operator | Oct 2008 |
| 165 | Trans Pacific Oil Corporation | Wichita, KS 67202 | Oil & Gas Operator | Feb 2026 |
| 166 | Trek Aec, LLC | Wichita, KS 67202 | Oil & Gas Operator | Dec 2025 |
| 167 | Trek Resources, Inc. | Dallas, TX 75207 | Oil & Gas Operator | Apr 2026 |
| 168 | Triple Crown Operating LLC | Tulsa, OK 74114 | Oil Operator | Dec 2025 |
| 169 | Unknown | Houston, TX 77208 | Oil & Gas Operator | Dec 2024 |
| 170 | Unrein Oil Co | | Oil Operator | Dec 2025 |
| 171 | Us Oil Resources LLC | Lakewood, CO 80123 | Oil Operator | Dec 2025 |
| 172 | Vess Oil Corporation | Dallas, TX 75201 | Oil & Gas Operator | Apr 2026 |
| 173 | Vicorp Energy In | | Oil Operator | Apr 1988 |
| 174 | Viking Resources | | Oil & Gas Operator | Sep 1995 |
| 175 | Viking Resources, Inc. | Stafford, TX 77477 | Oil & Gas Operator | Apr 2026 |
| 176 | Vincent Oil Corp | Wichita, KS 67202 | Oil & Gas Operator | Dec 2025 |
| 177 | Vintage Petroleu | | Oil & Gas Operator | Dec 1995 |
| 178 | Vintage Petroleum, LLC | Houston, TX 77210 | Oil & Gas Operator | Dec 2019 |
| 179 | Voyager Petroleu | | Oil & Gas Operator | Dec 1986 |
| 180 | Wabash Energy Corporation | Lawrenceville, IL 62439 | Oil & Gas Operator | Dec 2009 |
| 181 | Weilert Michael | | Oil Operator | Oct 1993 |
| 182 | Werth Exploration Trust | | Oil Operator | Dec 2013 |
| 183 | White & Ellis DR | | Oil & Gas Operator | Aug 1995 |
| 184 | White & Ellis Drilling, Inc. | Wichita, KS 67206 | Oil & Gas Operator | Dec 2025 |
| 185 | Whitetail Crude Inc | Ness City, KS 67560 | Oil & Gas Operator | Dec 2025 |
| 186 | Wilton Petroleum, Inc. | Canton, KS 67428 | Oil & Gas Operator | Dec 2025 |
| 187 | Wynn-Crosby Operating, LTD. | Dallas, TX 75201 | Oil & Gas Operator | Apr 2026 |
| 188 | Younger Energy Company | Wichita, KS 67206 | Oil & Gas Operator | Apr 2026 |