| 101 | Farmer John O Inc | Russell, KS 67665 | Oil & Gas Operator | Sep 2025 |
| 102 | Flatlander Energy LLC | Blackwell, OK 74631 | Oil & Gas Operator | Nov 2025 |
| 103 | Flowers Prod Com | | Oil Operator | Aug 1994 |
| 104 | Foreman Enterprises Inc | Edmond, OK 73003 | Oil & Gas Operator | Oct 2025 |
| 105 | Four-Way Oper In | | Oil Operator | Aug 1994 |
| 106 | Gabel, Craig | Wichita, KS 67216 | Oil Operator | Jun 2025 |
| 107 | Geo-Sax Petroleum | | Oil & Gas Operator | Sep 2025 |
| 108 | GLM Energy Inc | Oklahoma City, OK 73142 | Oil & Gas Operator | Nov 2025 |
| 109 | Global Exploration, LTD. | Wellington, KS 67152 | Oil Operator | Jun 2019 |
| 110 | Goby Energy, Inc. | Glenwood Springs, CO 81601 | Oil Operator | Dec 2019 |
| 111 | Grand Mesa Operating Company | Wichita, KS 67206 | Oil & Gas Operator | Dec 2025 |
| 112 | Green Enterprises | | Oil Operator | Sep 2025 |
| 113 | Gressel Production, LLC | South Haven, KS 67140 | Oil & Gas Operator | Sep 2025 |
| 114 | Gressel, Dewey H. | | Oil Operator | Dec 2009 |
| 115 | H & C Oil Operat | | Oil & Gas Operator | Dec 1996 |
| 116 | Harold Production | Castle Rock, CO 80104 | Gas Operator | Mar 1999 |
| 117 | Hartman Oil Company Inc | Wichita, KS 67206 | Oil & Gas Operator | Sep 2025 |
| 118 | Hellar Drilling | | Oil & Gas Operator | Jan 1994 |
| 119 | Helsel, Allan J | South Haven, KS 67140 | Oil Operator | Aug 2025 |
| 120 | Herman L. Loeb LLC | Lawrenceville, IL 62439 | Oil & Gas Operator | Sep 2025 |
| 121 | Hewitt Energy Group Inc | Salt Lake City, UT 84111 | Oil & Gas Operator | Apr 2015 |
| 122 | HG Oil Holdings, LLC | Hoisington, KS 67544 | Oil & Gas Operator | Sep 2025 |
| 123 | Holt Oil & Gas C | | Oil Operator | Sep 1984 |
| 124 | Hummon Corp | Medicine Lodge, KS 67104 | Oil & Gas Operator | Apr 2023 |
| 125 | Husain, Mrs. Shahnaz | Tulsa, OK 74136 | Oil Operator | Nov 1996 |
| 126 | Indian Wells Oil | | Oil & Gas Operator | Jul 1995 |
| 127 | Integrated Energy Inc | Houston, TX 77002 | Oil & Gas Operator | Aug 2003 |
| 128 | J D Operating Company | Tulsa, OK 74105 | Oil & Gas Operator | Jun 2005 |
| 129 | J-Mar Incorporat | | Oil & Gas Operator | Jun 1993 |
| 130 | Jaed Production Co., | Arkansas City, KS 67005 | Oil & Gas Operator | Mar 2024 |
| 131 | Jas Oil Company | Winfield, KS 67156 | Oil & Gas Operator | Dec 1995 |
| 132 | Jay Boy Oil Inco | | Oil & Gas Operator | May 1992 |
| 133 | Jenkins & Broyle | | Oil & Gas Operator | Sep 1991 |
| 134 | Jenkins & Broyles Production Company | | Oil Operator | Dec 2006 |
| 135 | Jenkins & Sons Production Inc | Arkansas City, KS 67005 | Oil Operator | Jul 2014 |
| 136 | Jenkins, Don(Deceased)Estate | Arkansas City, KS 67005 | Oil & Gas Operator | Dec 2009 |
| 137 | Jenkins, Donnie G. Jr. | Arkansas City, KS 67005 | Oil Operator | Dec 2019 |
| 138 | Johnson Brothers | Morse, TX 79062 | Oil & Gas Operator | Feb 2026 |
| 139 | Johnson Oil Fiel | | Oil Operator | Sep 1992 |
| 140 | Jolen Operating Company | Oklahoma City, OK 73102 | Oil & Gas Operator | Nov 2025 |
| 141 | Jones And Buck Development LLC | Sedan, KS 67361 | Oil & Gas Operator | Dec 2025 |
| 142 | Jordan Oil Management Inc. | Haysville, KS 67060 | Oil & Gas Operator | Sep 2025 |
| 143 | K3 Oil & Gas Operating Company | Spring, TX 77383 | Oil & Gas Operator | Nov 2025 |
| 144 | Kachina Oil Comp | | Oil & Gas Operator | Jan 1988 |
| 145 | Kaiser-Francis O | | Oil & Gas Operator | Oct 1995 |
| 146 | Kan-Cal Enterpri | | Oil Operator | Dec 1988 |
| 147 | Kirkman W L Inco | | Oil & Gas Operator | Dec 1994 |
| 148 | Kiska Oil Compan | | Oil & Gas Operator | Oct 1989 |
| 149 | Knighton Oil Company, Inc. | Wichita, KS 67206 | Oil & Gas Operator | Sep 2025 |
| 150 | Langston Oil & Gas LLC | Wichita, KS 67202 | Oil Operator | Aug 2025 |
| 151 | Lario Oil & Gas | | Oil & Gas Operator | Nov 1995 |
| 152 | Lario Oil & Gas Company | Odessa, TX 79762 | Oil & Gas Operator | Feb 2026 |
| 153 | Lawson Arthur C | | Oil Operator | Aug 1994 |
| 154 | Leake, Keith D.(Deceased) Estate | Derby, KS 67037 | Oil Operator | Mar 2003 |
| 155 | Legacy Reserves Operating LP | Denver, CO 80201 | Oil & Gas Operator | Feb 2026 |
| 156 | M & B Well Servi | | Oil Operator | Aug 1990 |
| 157 | M M Energy Inc | Oklahoma City, OK 73156 | Oil & Gas Operator | Nov 2025 |
| 158 | Mack Energy Comp | | Oil & Gas Operator | Nov 1994 |
| 159 | Manta Petroleum, Inc. | Englewood, CO 80155 | Oil & Gas Operator | Jun 2020 |
| 160 | Manuel Corporation | Wichita, KS 67206 | Oil & Gas Operator | Dec 2025 |
| 161 | Marathon Oil Com | | Oil & Gas Operator | Dec 1996 |
| 162 | Martec Petroleum | | Oil Operator | Jan 1984 |
| 163 | McConnell Oil Properties | | Oil Operator | Sep 2025 |
| 164 | McCorgary Operations | | Oil & Gas Operator | Sep 2025 |
| 165 | McCoy Petroleum Corporation | Wichita, KS 67207 | Oil & Gas Operator | Dec 2025 |
| 166 | McNeish Oil Oper | | Oil & Gas Operator | Feb 1991 |
| 167 | Mega Petroleum Corporation | Dallas, TX 75202 | Gas Operator | Feb 1998 |
| 168 | Meredith Enterprises | | Oil Operator | Jun 1988 |
| 169 | Meyer, Norbert | Conway Springs, KS 67031 | Oil Operator | Aug 1994 |
| 170 | Meyer, Theodore J. | Conway Springs, KS 67031 | Oil Operator | Sep 2025 |
| 171 | Mike Kelso Oil, Inc. | Chase, KS 67524 | Oil & Gas Operator | Sep 2025 |
| 172 | Moran Oil Enterprises LLC | Seminole, OK 74818 | Oil & Gas Operator | Dec 2019 |
| 173 | Muegge, Clay A. | Lamont, OK 74643 | Oil Operator | Aug 1991 |
| 174 | Mull Drilling Company | Wichita, KS 67206 | Oil & Gas Operator | Nov 2025 |
| 175 | Mustang Energy Corporation | Hays, KS 67601 | Oil Operator | Sep 2025 |
| 176 | N.F. Producers, Inc. | Berthoud, CO 80513 | Oil Operator | Sep 2025 |
| 177 | Nemaha Ridge, LLC | Coffeyville, KS 67337 | Oil Operator | Aug 2022 |
| 178 | New Horizon Resources LLC | Houston, TX 77057 | Oil & Gas Operator | Feb 2026 |
| 179 | Noble Petroleum, Inc. | Wichita, KS 67205 | Oil Operator | Sep 2013 |
| 180 | Northstar Investments, Inc. | Wichita, KS 67230 | Oil & Gas Operator | Sep 2025 |
| 181 | O'Brien Energy Resources Corp | Portsmouth, NH 03801 | Oil & Gas Operator | Feb 2026 |
| 182 | Oil Internationa | | Oil Operator | Jun 1986 |
| 183 | Oil Producers, Inc. Of Kansas | Wichita, KS 67206 | Oil & Gas Operator | Feb 2026 |
| 184 | Oil Property Management Inc | Attica, KS 67009 | Oil & Gas Operator | Feb 2021 |
| 185 | Omega Enterprise | | Oil Operator | Sep 1990 |
| 186 | Oxford Explorati | | Oil & Gas Operator | Mar 1993 |
| 187 | Pada Petroleum, Inc. | Maple City, KS 67102 | Oil & Gas Operator | Sep 2025 |
| 188 | Palomino Petrole | | Oil & Gas Operator | Dec 1995 |
| 189 | Partners In Crude, Inc. | Ponca City, OK 74602 | Oil & Gas Operator | Dec 1997 |
| 190 | Peak Operating LLC | Oklahoma City, OK 73157 | Oil & Gas Operator | Sep 2025 |
| 191 | Pendulum Petrole | | Oil & Gas Operator | Dec 1995 |
| 192 | Petro Dynamics C | | Oil & Gas Operator | Sep 1988 |
| 193 | Petroleum Property Services, Inc. | Wichita, KS 67202 | Oil & Gas Operator | Sep 2025 |
| 194 | Phil Groves Oil | | Oil & Gas Operator | Sep 2025 |
| 195 | Phillips Oil Properties Inc. | Derby, KS 67037 | Oil Operator | Sep 2025 |
| 196 | Phillips Petrole | | Oil & Gas Operator | May 1995 |
| 197 | Pic Inc | Ponca City, OK 74602 | Oil & Gas Operator | Jan 2013 |
| 198 | Pike Oil & Gas Inc | Pittsfield, IL 62363 | Oil & Gas Operator | Oct 2020 |
| 199 | Pioneer Exploration Company | Houston, TX 77090 | Oil & Gas Operator | Dec 2025 |
| 200 | Pioneer Exploration, LLC | Houston, TX 77090 | Oil & Gas Operator | Dec 2025 |