| 101 | Davis, Joe D. | Fort Smith, AR 72903 | Gas Operator | Mar 2015 |
| 102 | Deep Rock LLC | Tulsa, OK 74137-1612 | Gas Operator | Jun 2022 |
| 103 | Derrick Resources Inc. | Henryetta, OK 74437-4249 | Oil & Gas Operator | Nov 2024 |
| 104 | Devon Energy Corp (Nevada) | Oklahoma City, OK 73102 | Oil & Gas Operator | Feb 2017 |
| 105 | Devon Energy Production Company LP | Oklahoma City, OK 73102 | Oil & Gas Operator | Mar 2025 |
| 106 | Devon Louisiana Corporation | Houston, TX 77002 | Oil & Gas Operator | Oct 2019 |
| 107 | Dexxon, Inc. | Kiefer, OK 74041 | Oil & Gas Operator | Nov 2024 |
| 108 | Diamond A Inc. | Tulsa, OK 74137 | Oil & Gas Operator | Jun 2001 |
| 109 | Dixie Operating Company | Spring, TX 77379 | Oil & Gas Operator | Dec 2002 |
| 110 | DLKB Operating LLC | Eufaula, OK 74432 | Gas Operator | Nov 2024 |
| 111 | DMS Oil Company | Houston, TX 77042 | Oil & Gas Operator | Dec 2024 |
| 112 | Dominion Ok TX E & P Inc | Oklahoma City, OK 73134 | Oil & Gas Operator | Nov 2018 |
| 113 | Draco Production Company | Tulsa, OK 74133 | Oil & Gas Operator | Jul 2012 |
| 114 | Drake Exploration Inc | Tulsa, OK 74105-4250 | Oil & Gas Operator | Nov 2024 |
| 115 | Duffer William R | Edmond, OK 73034-6761 | Oil & Gas Operator | Aug 2018 |
| 116 | Duncan Oil Properties, Inc. | Oklahoma City, OK 73102 | Oil & Gas Operator | Mar 2025 |
| 117 | Durango Resources Corp. | Houston, TX 77043 | Oil & Gas Operator | Mar 2025 |
| 118 | Dyco Petroleum Corporation | Tulsa, OK 74103 | Oil & Gas Operator | Mar 2015 |
| 119 | Dyne Exploration Company | Plano, TX 75093-6512 | Oil & Gas Operator | Apr 2020 |
| 120 | E Lyle Johnson Inc | Oklahoma City, OK 73142 | Oil & Gas Operator | Nov 2024 |
| 121 | Eagle Energy PTR I LP | Houston, TX 77064 | Oil & Gas Operator | Feb 2015 |
| 122 | Eagle Gas Marketing Co | Oklahoma City, OK 73114-2202 | Oil & Gas Operator | Nov 2022 |
| 123 | Earlsboro Energies Corporation | Oklahoma City, OK 73116-3605 | Oil & Gas Operator | Oct 2024 |
| 124 | El Paso Production Company | Houston, TX 77002 | Oil & Gas Operator | Mar 2016 |
| 125 | Elite Tank Trucks, Inc | | Oil & Gas Operator | Dec 2024 |
| 126 | Enable Gas Transmission LLC | Houston, TX 77002 | Oil & Gas Operator | Sep 2022 |
| 127 | Energas Corporation | Oklahoma City, OK 73105-6422 | Oil & Gas Operator | Dec 2024 |
| 128 | Enerquest Oil & Gas LLC | Oklahoma City, OK 73114 | Oil & Gas Operator | Nov 2024 |
| 129 | Enersource Royalty Corporation | Oklahoma City, OK 73102 | Oil & Gas Operator | May 2013 |
| 130 | Enervest Operating LLC | Houston, TX 77002 | Oil & Gas Operator | Mar 2025 |
| 131 | Enogex Products Corp | Oklahoma City, OK 73124-0300 | Oil & Gas Operator | Jun 2022 |
| 132 | Enogex Services Corporation | Oklahoma City, OK 73124-0300 | Oil & Gas Operator | Apr 2009 |
| 133 | EOG Resources, Inc. | Midland, TX 79702 | Oil & Gas Operator | Mar 2025 |
| 134 | EP Energy E&P Company, LP | Houston, TX 77210 | Oil & Gas Operator | May 2022 |
| 135 | EP Operating LP | Dallas, TX 75201 | Oil & Gas Operator | Mar 2015 |
| 136 | Esco Exploration, Inc | Dallas, TX 75201 | Oil & Gas Operator | Mar 2015 |
| 137 | Esis Inc | | Oil & Gas Operator | Feb 2017 |
| 138 | Eufaula Enterprises Inc | | Gas Operator | Nov 1997 |
| 139 | Evans Production Co. | Pampa, TX 79066 | Oil & Gas Operator | Sep 2020 |
| 140 | Evolution Operating Co., Inc. | Houston, TX 77079 | Oil & Gas Operator | Mar 2025 |
| 141 | Exploration Associates II LLC | Oklahoma City, OK 73102-8815 | Oil & Gas Operator | Jan 2013 |
| 142 | Exxon Mobil Corporation | Spring, TX 77389 | Oil & Gas Operator | Mar 2025 |
| 143 | Exxonmobil Oil Corp | Houston, TX 77210 | Oil & Gas Operator | Dec 2024 |
| 144 | Fair Oil Company | Tyler, TX 75710 | Oil & Gas Operator | Dec 2000 |
| 145 | Fairway Midstream SVC & TRD | Tulsa, OK 74114 | Oil & Gas Operator | Jun 2006 |
| 146 | Faulconer Vernon E Inc | Tyler, TX 75711 | Oil & Gas Operator | Dec 2024 |
| 147 | Fort Exploration Company | FT Smith, AR 72901 | Gas Operator | May 2001 |
| 148 | Fort Operating Company | Fort Smith, AR 72923 | Gas Operator | Nov 2018 |
| 149 | Foundation Energy Management, LLC | Addison, TX 75001 | Oil & Gas Operator | Mar 2025 |
| 150 | FP Inc. | Oklahoma City, OK 73154 | Oil & Gas Operator | Dec 2008 |
| 151 | G & B Tank Truck Service | Binger, OK 73009 | Oil & Gas Operator | Jan 2008 |
| 152 | G M Oil Properties Inc | Eufaula, OK 74432-0841 | Oil & Gas Operator | Feb 2012 |
| 153 | Galaxy Energy Inc | Stilger, OK 74462 | Gas Operator | Nov 2024 |
| 154 | General Atlantic Resources Inc | Denver, CO 80202 | Oil & Gas Operator | Jan 2022 |
| 155 | Germany Operating Company | Houston, TX 77090 | Oil & Gas Operator | Sep 2011 |
| 156 | Getty Oil Company | Hays, KS 67601 | Oil & Gas Operator | Mar 2015 |
| 157 | GHK Company LLC (The) | Oklahoma City, OK 73118-1120 | Oil & Gas Operator | Apr 2018 |
| 158 | Gla Inc | Norman, OK 73070 | Oil & Gas Operator | Nov 2024 |
| 159 | GLB Exploration, Inc. | Oklahoma City, OK 73102 | Oil & Gas Operator | Dec 2024 |
| 160 | Glenn Supply Company, Inc. | Tulsa, OK 74101 | Oil & Gas Operator | Nov 2024 |
| 161 | Glenwood Operating LLC | Wichita Falls, TX 76309-4529 | Gas Operator | Nov 2024 |
| 162 | Golden Gas Production Company | Tulsa, OK 74136 | Oil & Gas Operator | Nov 2024 |
| 163 | Gothic Energy Corporation | Tulsa, OK 74136 | Oil & Gas Operator | Jul 2015 |
| 164 | Gothic Production Corporation | Oklahoma City, OK 73154 | Oil & Gas Operator | Dec 2016 |
| 165 | Graham Royalty LTD | Covington, LA 70434 | Oil & Gas Operator | Jul 2007 |
| 166 | Grand Resources Inc | Tulsa, OK 74137 | Oil & Gas Operator | Mar 2025 |
| 167 | Great Yellowstone Corp. | | Oil & Gas Operator | Apr 1993 |
| 168 | Greg Hall Oil & Gas LLC | Norman, OK 73072 | Oil & Gas Operator | Nov 2024 |
| 169 | Gulfstream Petroleum Corp. | | Oil & Gas Operator | Feb 2002 |
| 170 | Hadson Petroleum Corporation | Oklahoma City, OK 73102 | Oil & Gas Operator | Mar 2015 |
| 171 | Hall Edward L | Ada, OK 74820-3321 | Oil & Gas Operator | Nov 2024 |
| 172 | Hallwood Petroleum, Inc. | Midland, TX 79701 | Oil & Gas Operator | Aug 2024 |
| 173 | Hanna Oil And Gas Company | Fort Smith, AR 72901 | Oil & Gas Operator | Nov 2024 |
| 174 | Hart David | Chickasha, OK 73018-7756 | Oil & Gas Operator | Mar 2015 |
| 175 | HCG Energy Corporation & Subs | | Oil & Gas Operator | Mar 2015 |
| 176 | Headington Oil Company | Dallas, TX 75231 | Oil & Gas Operator | Dec 2016 |
| 177 | Headington Oil Company LLC | Dallas, TX 75204 | Oil & Gas Operator | Apr 2016 |
| 178 | Hogback Exploration Inc | Fort Smith, AR 72916 | Oil & Gas Operator | Nov 2024 |
| 179 | Hoover & Wilson Exp & Prod Inc | Fort Smith, AR 72913-5171 | Gas Operator | Jul 2013 |
| 180 | Horizon Natural Gas Company | Tulsa, OK 74170 | Oil & Gas Operator | Oct 2024 |
| 181 | Horizon Natural Resources, Inc. | Tulsa, OK 74136 | Oil & Gas Operator | Jan 2019 |
| 182 | Howden Petroleum Corp | Wetumka, OK 74883 | Gas Operator | Nov 1997 |
| 183 | HRB Operating Company Inc | Bridgeport, TX 76426 | Oil & Gas Operator | Mar 2025 |
| 184 | HRC Production Co | Houston, TX 77002 | Oil & Gas Operator | Nov 2024 |
| 185 | Huitt Joe A | Tulsa, OK 74103 | Oil & Gas Operator | May 2001 |
| 186 | Huitt Joe A Rev Trust | Tulsa, OK 74103 | Oil & Gas Operator | Oct 2009 |
| 187 | Hunt Energy Corporation | | Oil & Gas Operator | Feb 2002 |
| 188 | Hunt Oil Company | Dallas, TX 75201 | Oil & Gas Operator | Mar 2025 |
| 189 | Illoma Oil Company Inc | Algonquin, IL 60102-1825 | Oil & Gas Operator | Mar 2015 |
| 190 | J & J Energy Service LLC | Bokoshe, OK 74930 | Gas Operator | Nov 2024 |
| 191 | Jaco Energy Company Inc | Stigler, OK 74462 | Gas Operator | Nov 2024 |
| 192 | Jec Operating LLC | Oklahoma City, OK 73114-2717 | Oil & Gas Operator | Nov 2024 |
| 193 | JKB Resources LLC | Stigler, OK 74462 | Oil & Gas Operator | Nov 2024 |
| 194 | Jma Resources, Inc. | Oklahoma City, OK 73112 | Oil & Gas Operator | Nov 2024 |
| 195 | JMC Exploration Inc | Dallas, TX 75225-5803 | Gas Operator | Jan 2007 |
| 196 | Jones & Pellow Oil Co | Oklahoma City, OK 73118-1115 | Oil & Gas Operator | Feb 2015 |
| 197 | Joshua Energy LLC | Tulsa, OK 74134-7460 | Gas Operator | Nov 2024 |
| 198 | K G Operating | Hennessey, OK 73742 | Oil & Gas Operator | May 1999 |
| 199 | K M Gas Company | Oklahoma City, OK 73125 | Oil & Gas Operator | Dec 2014 |
| 200 | Kaiser-Francis Oil Company | Tulsa, OK 74121 | Oil & Gas Operator | Mar 2025 |