| 101 | D & S Oil Company | Corsicana, TX 75151 | Oil & Gas Operator | Feb 2026 |
| 102 | D O Walker Inc | Stratford, OK 74872 | Oil Operator | Sep 2025 |
| 103 | Danny Engel Operating LLC | Ada, OK 74820-1388 | Oil Operator | Nov 2025 |
| 104 | Darrell'S Drilling Inc | Konawa, OK 74849 | Oil Operator | Nov 2025 |
| 105 | Davis William H | Tulsa, OK 74103 | Oil & Gas Operator | Apr 2014 |
| 106 | DCP Operating Co LP | Houston, TX 77042 | Oil & Gas Operator | Nov 2025 |
| 107 | Delta D Operations | Wilson, OK 73463 | Oil & Gas Operator | Jul 2014 |
| 108 | Delta D Operations Inc | Ardmore, OK 73401-8678 | Oil & Gas Operator | Apr 2014 |
| 109 | Discovery Natural Resources LLC | Denver, CO 80202 | Oil & Gas Operator | Feb 2026 |
| 110 | Dominion Ok TX E & P Inc | Oklahoma City, OK 73134 | Oil & Gas Operator | Nov 2018 |
| 111 | Double Eagle Petroleum Corp | Evansville, IN 47725 | Oil & Gas Operator | Feb 2026 |
| 112 | Douglas Oil & Gas Co Inc | Ada, OK 74820 | Oil Operator | Apr 2014 |
| 113 | Downhole Oil & Gas Tech LLC | Countyline, OK 73152-0027 | Oil Operator | Oct 2009 |
| 114 | Draco Production Company | Tulsa, OK 74133 | Oil & Gas Operator | Jul 2012 |
| 115 | Duck Bros Dozer & Trucking Inc | Konawa, OK 74849 | Oil & Gas Operator | Dec 2025 |
| 116 | Duck Oil Company LLC | Konawa, OK 74849 | Oil Operator | Nov 2025 |
| 117 | Duffer William R | Edmond, OK 73034-6761 | Oil & Gas Operator | Aug 2018 |
| 118 | Dundee Oil & Supply Inc | Tulsa, OK 74101 | Oil & Gas Operator | Apr 2001 |
| 119 | Dunn'S Oil And Gas Lease Management LLC | Ardmore, OK 73401 | Oil & Gas Operator | Nov 2025 |
| 120 | Eagle Minerals & Oil Prop Inc | Tulsa, OK 74119 | Oil & Gas Operator | Jan 2002 |
| 121 | Eagle Rock Mid-Continent Operating LLC | Tulsa, OK 74103-3703 | Oil & Gas Operator | Nov 2025 |
| 122 | East Fitts Project LTD PTNSHP | Ada, OK 74820 | Oil & Gas Operator | Dec 2002 |
| 123 | Echo Production Inc | Graham, TX 76450 | Oil & Gas Operator | Feb 2026 |
| 124 | Ekg Operating Inc | Seminole, OK 74818-1028 | Oil & Gas Operator | Nov 2015 |
| 125 | Eland Energy Inc | Dallas, TX 75248 | Oil & Gas Operator | Dec 2025 |
| 126 | Elite Tank Trucks, Inc | | Oil & Gas Operator | Nov 2025 |
| 127 | Elliott Resources Inc | Ada, OK 74820-9227 | Oil & Gas Operator | Jul 2010 |
| 128 | Encore Operating LP | Plano, TX 75024 | Oil & Gas Operator | Dec 2025 |
| 129 | Enerfin Resources I Limited Partnership | Houston, TX 77077-2386 | Oil & Gas Operator | Apr 2023 |
| 130 | Energy Lease Service Inc | Drumright, OK 74030-7403 | Oil & Gas Operator | Nov 2025 |
| 131 | Energy Production Services LLC | Oklahoma City, OK 73162-4736 | Oil & Gas Operator | Apr 2020 |
| 132 | Energyquest II, LLC | The Woodlands, TX 77381 | Oil & Gas Operator | Nov 2025 |
| 133 | Ennis Bill H | Sasakwa, OK 74867-0001 | Oil & Gas Operator | Sep 2014 |
| 134 | Entex Petroleum Inc | Oklahoma City, OK 73113 | Oil & Gas Operator | Nov 1997 |
| 135 | Eott Energy Corporation | Oklahoma City, OK 73118 | Oil & Gas Operator | Dec 1995 |
| 136 | Esis Inc | | Oil & Gas Operator | Feb 2017 |
| 137 | Export Petroleum Corporation | Fort Worth, TX 76147 | Oil & Gas Operator | Feb 2026 |
| 138 | Exxon Mobil Corporation | Spring, TX 77389 | Oil & Gas Operator | Feb 2026 |
| 139 | Exxonmobil Oil Corp | Houston, TX 77210 | Oil & Gas Operator | Sep 2025 |
| 140 | F S & B Holding | Ada, OK 74820 | Oil & Gas Operator | Sep 1997 |
| 141 | Fagan Engineering | Shawnee, OK 74801-3021 | Oil & Gas Operator | Oct 1994 |
| 142 | FDL Operating, LLC | Judson, TX 75660 | Oil & Gas Operator | Feb 2026 |
| 143 | Feezel A L LLC | Ada, OK 74821-1371 | Oil & Gas Operator | Mar 2015 |
| 144 | Fleet Frank T | Ada, OK 74821-0729 | Oil & Gas Operator | Feb 2003 |
| 145 | Flint J A & Associates | Holdenville, OK 74848 | Oil & Gas Operator | Sep 2009 |
| 146 | Formor Operating Inc | Tyler, TX 75701 | Oil & Gas Operator | May 2013 |
| 147 | Fossil Fuels Inc. | Dallas, TX 75201 | Oil & Gas Operator | May 2000 |
| 148 | Frank T Fleet Inc | Ada, OK 74820 | Oil Operator | Nov 2025 |
| 149 | Freedom Operating Company LLC | Tulsa, OK 74136-6834 | Oil & Gas Operator | Dec 2025 |
| 150 | Gatewood Edward J "Bob" | Holdenville, OK 74848 | Oil & Gas Operator | May 2013 |
| 151 | Gay Drilling Contractors | Duncan, OK 73534-0457 | Oil & Gas Operator | Dec 2014 |
| 152 | General Minerals Corp | Oklahoma City, OK 73105 | Oil & Gas Operator | Dec 2015 |
| 153 | General Trading Co Inc | Carrollton, TX 75011-2309 | Oil Operator | Jul 2017 |
| 154 | Geo Exploration LLC | Oklahoma City, OK 73120-7116 | Oil & Gas Operator | Jun 2024 |
| 155 | Gerwan Oil Company | Oklahoma City, OK 73159 | Oil Operator | Mar 2011 |
| 156 | Gilco Oil Inc | Ada, OK 74820 | Oil & Gas Operator | May 2019 |
| 157 | Gillham Paul | Maud, OK 74854 | Oil & Gas Operator | Apr 2023 |
| 158 | Gloco LLC (The) | Ada, OK 74820 | Oil & Gas Operator | Nov 2025 |
| 159 | Gloria Corporation The | Ada, OK 74821-0297 | Oil & Gas Operator | Sep 2014 |
| 160 | Gold Ronald L & Marleen | Shawnee Mission, KS 66202-3302 | Oil Operator | Apr 2014 |
| 161 | Gomaco Inc | Tulsa, OK 74103-5061 | Oil & Gas Operator | Apr 2015 |
| 162 | Gomaco Operating Company | Tulsa, OK 74115 | Oil & Gas Operator | Dec 2025 |
| 163 | Graham Royalty LTD | Covington, LA 70434 | Oil & Gas Operator | Jul 2007 |
| 164 | Grayrock Energy, LLC | Fort Worth, TX 76114 | Oil & Gas Operator | Dec 2025 |
| 165 | Grizzly Operating, LLC | Houston, TX 77057 | Oil & Gas Operator | Nov 2025 |
| 166 | Gugli Corporation | Byng, OK 74820 | Oil & Gas Operator | Sep 2014 |
| 167 | Gulf Exploration, LLC | Oklahoma City, OK 73114 | Oil & Gas Operator | Jan 2026 |
| 168 | H & L Operating Company | Amarillo, TX 79114 | Oil & Gas Operator | Feb 2020 |
| 169 | H E C H Corporation | Ada, OK 74820-9528 | Oil Operator | Sep 2019 |
| 170 | Hall Resources Corporation | Independence, MO 64057-2158 | Oil & Gas Operator | Jun 2016 |
| 171 | Hallmark Resources, Inc | Stilwell, OK 74960-0312 | Oil & Gas Operator | Sep 2020 |
| 172 | Hamilton B J | Ada, OK 74820-9404 | Oil & Gas Operator | Sep 1999 |
| 173 | Hamilton K M Oil & Gas Co | Ada, OK 74820 | Oil Operator | Jan 2013 |
| 174 | Hamilton Properties & Investments L.L.C. | Ada, OK 74820 | Oil Operator | Nov 2025 |
| 175 | Harrod Leasing | Edmond, OK 73034 | Oil & Gas Operator | Nov 2025 |
| 176 | Hazelwood Louis J | Albuquerque, NM 87111-6870 | Oil & Gas Operator | Feb 2023 |
| 177 | HCG Energy Corporation & Subs | | Oil & Gas Operator | Mar 2015 |
| 178 | Headington Oil Company | Dallas, TX 75231 | Oil & Gas Operator | Dec 2016 |
| 179 | Headington Oil Company LLC | Dallas, TX 75204 | Oil & Gas Operator | Apr 2016 |
| 180 | Heaton Everill L | Exeter, CA 93221-2340 | Oil & Gas Operator | Sep 2014 |
| 181 | Hess Corporation | Houston, TX 77010 | Oil & Gas Operator | Aug 2017 |
| 182 | Highmark Energy Operating LLC | Dallas, TX 75222 | Oil & Gas Operator | Feb 2026 |
| 183 | HRC Production Co | Houston, TX 77024 | Oil & Gas Operator | Nov 2025 |
| 184 | Huber J M Corp | Edison, NJ 08837 | Oil & Gas Operator | Feb 2026 |
| 185 | Hughes George B | Asher, OK 74826-0165 | Oil & Gas Operator | Mar 2011 |
| 186 | J & J Tank Truck Services LLC | Peyton, CO 80831 | Oil Operator | Oct 2024 |
| 187 | J & M Oil Co | Overland PK, KS 66209 | Oil & Gas Operator | Sep 2025 |
| 188 | J & S Oil & Gas Inc | Asher, OK 74826 | Oil & Gas Operator | Nov 2025 |
| 189 | J & Z Investments LLC | Ada, OK 74820-0065 | Oil & Gas Operator | Nov 2025 |
| 190 | J.R. Oil Company | Houston, TX 77007 | Oil & Gas Operator | Jul 2019 |
| 191 | Jaquess W D "Bud" | Ada, OK 74820 | Oil & Gas Operator | Jan 2018 |
| 192 | Jay Petroleum Inc | Oklahoma City, OK 73154-0526 | Oil & Gas Operator | Mar 2019 |
| 193 | Jeron Oil And Gas Inc | Denison, TX 75020 | Oil & Gas Operator | Jun 2000 |
| 194 | Jesse Operating LLC | Konawa, OK 74849-4917 | Oil Operator | Apr 2025 |
| 195 | Jetson Operating Inc | Ada, OK 74820 | Oil & Gas Operator | Sep 2024 |
| 196 | JLR Investments Inc | Oklahoma City, OK 73151-9101 | Oil & Gas Operator | Sep 2014 |
| 197 | Joe B Clifton Exploration Inc | Pauls Valley, OK 73075 | Oil & Gas Operator | Apr 2022 |
| 198 | Johnson June | Lawton, OK 73501-9624 | Oil & Gas Operator | Mar 2025 |
| 199 | Jones Oil Company | Ardmore, OK 73402-1389 | Oil & Gas Operator | Aug 2022 |
| 200 | K Oil Company | Houston, TX 77005 | Oil & Gas Operator | Feb 2026 |