| 101 | Dawson-Markwell Exploration Co. | Oklahoma City, OK 73101 | Oil & Gas Operator | Sep 2025 |
| 102 | Day Richard H | Wann, OK 74083-9608 | Oil Operator | Mar 2015 |
| 103 | DDC Oil LLC | Rockwall, TX 75087-5383 | Oil Operator | Mar 2020 |
| 104 | Delong Ralph J | Sapulpa, OK 74066 | Oil & Gas Operator | Nov 2005 |
| 105 | Deshazo Production Company | Dewey, OK 74029-2811 | Oil & Gas Operator | Nov 2005 |
| 106 | Devon Energy Corp (Nevada) | Oklahoma City, OK 73102 | Oil & Gas Operator | Feb 2017 |
| 107 | Devon Resources Corporation | Jenks, OK 74037-3525 | Oil & Gas Operator | Aug 2025 |
| 108 | Dewey Enterprises Inc | | Oil & Gas Operator | Aug 2025 |
| 109 | Diamond Energy Services LLC | Tulsa, OK 74103-3862 | Oil & Gas Operator | Jan 2016 |
| 110 | Donaldson Richard E | Bartlesville, OK 74005-0032 | Oil & Gas Operator | Nov 2005 |
| 111 | Double C Oil & Gas LLC | Jenks, OK 74037-6946 | Oil Operator | Jul 2025 |
| 112 | Double C Operating LLC | Abilene, TX 79602 | Oil Operator | Dec 2025 |
| 113 | Douglas Investments Inc | Fort Worth, TX 76137 | Oil Operator | Jan 2020 |
| 114 | Drake Exploration Inc | Tulsa, OK 74105-4250 | Oil & Gas Operator | Sep 2025 |
| 115 | Drake Exploration LLC | Arkansas City, KS 67005 | Oil & Gas Operator | Aug 2025 |
| 116 | Drummond, F F | | Oil Operator | Aug 2025 |
| 117 | Duncan Energy Inc | | Oil & Gas Operator | Mar 2014 |
| 118 | Eagle Exploration Production LLC | Tulsa, OK 74103 | Oil & Gas Operator | Jul 2025 |
| 119 | Eagle Operating Company | Tulsa, OK 74146-5730 | Oil & Gas Operator | Aug 2020 |
| 120 | Eakin Exploration Inc | Tulsa, OK 74136 | Oil & Gas Operator | Jun 2016 |
| 121 | Eakin J L | Bartlesville, OK 74136 | Oil & Gas Operator | Feb 2020 |
| 122 | Ecc Energy Corporation | Dewey, OK 74029 | Oil & Gas Operator | Feb 2020 |
| 123 | Eei Operating Inc. | Plano, TX 75093 | Oil & Gas Operator | May 2015 |
| 124 | Eichenber A H Co | Tulsa, OK 74105 | Oil & Gas Operator | Oct 2002 |
| 125 | Elite Tank Trucks, Inc | | Oil & Gas Operator | Sep 2025 |
| 126 | Elmore Stanley G | Bartlesville, OK 74006-1741 | Oil & Gas Operator | Sep 2023 |
| 127 | Elmtree Oil Co Inc | Bartlesville, OK 74006-1819 | Oil Operator | May 2021 |
| 128 | Endeavor Energy Resources, LP | Midland, TX 79701 | Oil & Gas Operator | Mar 2025 |
| 129 | Energy Transfer Crude Marketing LLC | Dallas, TX 75225 | Oil Operator | Aug 2025 |
| 130 | Energyquest Management, LLC | Houston, TX 77090 | Oil & Gas Operator | Apr 2021 |
| 131 | Enterprise Energy Exploration Inc | Tulsa, OK 74133-6724 | Oil & Gas Operator | Sep 2025 |
| 132 | Entransco Energy LLC | Dewey, OK 74029 | Oil & Gas Operator | Oct 2024 |
| 133 | Envirotek Fuel Systems Inc | Dallas, TX 75243 | Oil & Gas Operator | May 2013 |
| 134 | Equinox Oil Company Inc | Plainville, KS 67663 | Oil & Gas Operator | Dec 2019 |
| 135 | Exploration Technologies Inc | Crescent, OK 73028-0546 | Oil & Gas Operator | Mar 2015 |
| 136 | Exxonmobil Oil Corp | Houston, TX 77210 | Oil & Gas Operator | Aug 2025 |
| 137 | F & G Management LLC | Claremore, OK 74019-0392 | Oil Operator | Jul 2025 |
| 138 | Farmland Industries Inc | Kansas City, MO 64195-0111 | Oil & Gas Operator | Nov 1995 |
| 139 | Fears Jr Laymon F | Bartlesville, OK 74003-2323 | Oil & Gas Operator | May 2013 |
| 140 | Femco SWD Inc | Enid, OK 73702-3907 | Oil Operator | Mar 2014 |
| 141 | Ferguson-Hunter Explor Inc | N Little Rock, AR 72120-1667 | Oil & Gas Operator | Aug 2016 |
| 142 | Ferraro Energy Corporation | Oklahoma City, OK 73114-6629 | Oil & Gas Operator | Aug 2013 |
| 143 | Finney Drilling Company | Wann, OK 74083-2314 | Oil Operator | Jul 2018 |
| 144 | Finney Kyler A Dba Finney Oil Co | Wann, OK 74083 | Oil Operator | Aug 2025 |
| 145 | Flood Thirty Seven LLC | Dewey, OK 74029 | Oil Operator | Aug 2025 |
| 146 | Flowin Gold Inc | Sapulpa, OK 74066-9735 | Oil & Gas Operator | Apr 2020 |
| 147 | Foster Oil & Gas | Bartlesville, OK 74005 | Oil & Gas Operator | Mar 2014 |
| 148 | Four A Oil Company Inc | Copan, OK 74022 | Oil Operator | Aug 2022 |
| 149 | Fox Jr Jimmy D | Bartlesville, OK 74003 | Oil & Gas Operator | Nov 2005 |
| 150 | Fox Northeastern Oil & Gas Corp | Bartlesville, OK 74003-2226 | Oil & Gas Operator | Sep 2025 |
| 151 | Frierson & Kirchner | | Oil & Gas Operator | Mar 2007 |
| 152 | Frisco Energy, L.L.C. | Tulsa, OK 74105 | Oil & Gas Operator | Aug 2025 |
| 153 | G B & D Oil & Gas | Kilgore, TX 75663-2881 | Oil & Gas Operator | Mar 2015 |
| 154 | Garrett, Dwayne M | | Oil & Gas Operator | Dec 2000 |
| 155 | Gary Hurd Oil Company, Inc. | | Oil & Gas Operator | Aug 2025 |
| 156 | Gateway Resources USA Inc | Bartlesville, OK 74006 | Oil & Gas Operator | Aug 2025 |
| 157 | General Oil Company, Inc. | Wichita, KS 67213 | Oil & Gas Operator | Dec 2025 |
| 158 | Gilliland Gerald D | Dewey, OK 74029-1639 | Oil Operator | Mar 2015 |
| 159 | Gilliland Robert E Estate Of | Dewey, OK 74029-3924 | Oil & Gas Operator | Jul 2001 |
| 160 | Glory Oil Company LLC | Dewey, OK 74029-4056 | Oil Operator | Aug 2025 |
| 161 | Goetz Elmer | Bartlesville, OK 74005-1068 | Oil & Gas Operator | Jan 2015 |
| 162 | Gopher Oil Company | | Oil & Gas Operator | Jul 2025 |
| 163 | Grand Production Company | Oklahoma City, OK 73116 | Oil & Gas Operator | Aug 2000 |
| 164 | Grayson Operating LLC | Ada, OK 74820 | Oil & Gas Operator | Aug 2025 |
| 165 | Greenwood Oil Company | Skiatook, OK 74070 | Oil & Gas Operator | Aug 2013 |
| 166 | Griggs Josh | Dewey, OK 74029 | Oil Operator | Aug 2025 |
| 167 | Griggs Oil LLC | Dewey, OK 74029-0477 | Oil & Gas Operator | Aug 2025 |
| 168 | Griswold Energy LLC | Oologah, OK 74053-6228 | Oil Operator | Aug 2025 |
| 169 | H & H Exploration | Tulsa, OK 74132 | Oil & Gas Operator | Jan 2006 |
| 170 | H & H Production | Wichita Falls, TX 76307 | Oil & Gas Operator | Mar 2015 |
| 171 | H & S Oil Company | Kellyville, OK 74039 | Oil & Gas Operator | Mar 1998 |
| 172 | Haas Petroleum LLC | Prairie VIllage, KS 66208 | Oil Operator | Jun 2025 |
| 173 | Hadson Petro USA Inc | | Oil & Gas Operator | Nov 2016 |
| 174 | Hamlin Jim | Dewey, OK 74029 | Oil & Gas Operator | Aug 1999 |
| 175 | Harper Joe Howard Dba J H Field Service | Nowata, OK 74048-9704 | Oil & Gas Operator | Aug 2025 |
| 176 | Harrington Orville | Dewey, OK 74029 | Oil Operator | Aug 2025 |
| 177 | Hat-Top Production Co | Duncan, OK 73533 | Oil Operator | Apr 2011 |
| 178 | Hays Herb E & K S | Bartlesville, OK 74006 | Oil Operator | Jul 2025 |
| 179 | Heath Jack A | Tulsa, OK 74132-2403 | Oil & Gas Operator | Jan 2013 |
| 180 | Heller Phillip & Charlene | Columbia, MO 65201 | Oil & Gas Operator | Jul 2025 |
| 181 | Helmerich & Payne, Inc. | Tulsa, OK 74114 | Oil & Gas Operator | Aug 2025 |
| 182 | Heuston Oil LLC | Bartlesville, OK 74006 | Oil & Gas Operator | Apr 2020 |
| 183 | HHH & G Oil Co | Owasso, OK 74055 | Oil Operator | Jun 2020 |
| 184 | Hillside Resources | Bartlesville, OK 74005 | Oil & Gas Operator | Jan 2007 |
| 185 | Holt James | Skiatook, OK 74070-0006 | Oil & Gas Operator | Feb 2020 |
| 186 | Home Petroleum Corp | Victoria, TX 77902 | Oil & Gas Operator | Dec 2025 |
| 187 | Hudgens Lester E | Bartlesville, OK 74006-0215 | Oil Operator | Mar 2015 |
| 188 | Huitt Joe A | Tulsa, OK 74103 | Oil & Gas Operator | May 2001 |
| 189 | Hulse Steve & Frank | Pawhuska, OK 74056 | Oil & Gas Operator | Aug 2000 |
| 190 | Hunt Oil Company | Dallas, TX 75201 | Oil & Gas Operator | Dec 2025 |
| 191 | Icor Oil & Gas Of Okla LTD | Claremore, OK 74018-2132 | Oil & Gas Operator | Mar 2015 |
| 192 | Inda Oil Unlimited | Bartlesville, OK 74006 | Oil Operator | Dec 2023 |
| 193 | Indian Nation Energy Company | Wewoka, OK 74884-3456 | Oil & Gas Operator | Apr 2020 |
| 194 | Indian Territory Operating LLC | Salado, TX 76571 | Oil & Gas Operator | Jun 2025 |
| 195 | Inland Oil Corporation | Sapulpa, OK 74067 | Oil & Gas Operator | Sep 2025 |
| 196 | J & E Energy Company | Oklahoma City, OK 73120-1108 | Oil & Gas Operator | Mar 2015 |
| 197 | J & K Operating Co LLC | Delaware, OK 74027 | Oil & Gas Operator | Aug 2025 |
| 198 | J & M Oil Co | Overland PK, KS 66209 | Oil & Gas Operator | Jun 2025 |
| 199 | J-O Oil Co | | Oil & Gas Operator | Dec 2000 |
| 200 | J. C. Oil Company | Odessa, TX 79766 | Oil & Gas Operator | Mar 2015 |