| 101 | Davco Productions Inc | Springer, OK 73458-8191 | Oil & Gas Operator | Jun 2021 |
| 102 | DCP Operating Co LP | Houston, TX 77042 | Oil & Gas Operator | Jan 2024 |
| 103 | Deaton, Gary L. Corporation | Oklahoma City, OK 73105 | Oil & Gas Operator | Mar 2015 |
| 104 | Dette Oil Corporation | Oklahoma City, OK 73162-6249 | Oil & Gas Operator | Oct 2015 |
| 105 | Devon Louisiana Corporation | Houston, TX 77002 | Oil & Gas Operator | Oct 2019 |
| 106 | Di Energy Inc. | Houston, TX 77067 | Oil & Gas Operator | Jan 2004 |
| 107 | Diversified Production LLC | Minden, LA 71055 | Oil & Gas Operator | Apr 2024 |
| 108 | DLB Energy Corporation | Oklahoma City, OK 73118-1401 | Oil & Gas Operator | Dec 2014 |
| 109 | Dominion Exp Midcontinent Inc | Oklahoma City, OK 73134-2616 | Oil & Gas Operator | Feb 2024 |
| 110 | Dominion Exploration & Production Inc | Houston, TX 77060 | Oil & Gas Operator | Apr 2015 |
| 111 | Dominion Ok TX E & P Inc | Oklahoma City, OK 73134 | Oil & Gas Operator | Nov 2018 |
| 112 | Dorchester Resources LP | Oklahoma City, OK 73154 | Oil & Gas Operator | Aug 2021 |
| 113 | Douglass Dietz & Daley Inc | Oklahoma City, OK 73154-0125 | Oil & Gas Operator | Aug 2023 |
| 114 | Duncan Oil Properties, Inc. | Oklahoma City, OK 73102 | Oil & Gas Operator | Apr 2024 |
| 115 | Duncan Ronald R | Okemah, OK 74859-9603 | Oil & Gas Operator | Aug 2023 |
| 116 | Dyco Petroleum Corporation | Tulsa, OK 74103 | Oil & Gas Operator | Mar 2015 |
| 117 | Eagle Gas Marketing Co | Oklahoma City, OK 73114-2202 | Oil & Gas Operator | Nov 2022 |
| 118 | Eagle Minerals & Oil Prop Inc | Tulsa, OK 74119 | Oil & Gas Operator | Jan 2002 |
| 119 | Edinger Inc. | Oklahoma City, OK 73102 | Oil & Gas Operator | Jun 2007 |
| 120 | El Paso Natural Gas Company | El Paso, TX 79978 | Oil & Gas Operator | Apr 2013 |
| 121 | El Paso Production Company | Houston, TX 77002 | Oil & Gas Operator | Mar 2016 |
| 122 | Eland Energy Inc | Dallas, TX 75248 | Oil & Gas Operator | Feb 2024 |
| 123 | Enable Oklahoma Intrastate Transmission LLC | Dallas, TX 75225-6142 | Oil & Gas Operator | Jul 2022 |
| 124 | Encana Energy Resources Inc | Denver, CO 80202-2828 | Oil & Gas Operator | Jan 2021 |
| 125 | Enervest Operating LLC | Houston, TX 77002 | Oil & Gas Operator | Apr 2024 |
| 126 | Enogex Services Corporation | Oklahoma City, OK 73124-0300 | Oil & Gas Operator | Apr 2009 |
| 127 | Enserch Exploration Inc | Dallas, TX 75206 | Oil & Gas Operator | Apr 2015 |
| 128 | EOG Resources Inc | Midland, TX 79702 | Oil & Gas Operator | Apr 2024 |
| 129 | Eott Energy Operating LP | Houston, TX 77210-4666 | Oil & Gas Operator | Oct 2009 |
| 130 | EP Operating LP | Dallas, TX 75201 | Oil & Gas Operator | Mar 2015 |
| 131 | Esco Exploration, Inc | Dallas, TX 75201 | Oil & Gas Operator | Mar 2015 |
| 132 | Esis Inc | | Oil & Gas Operator | Feb 2017 |
| 133 | Evergreen Operating Corp | Denver, CO 80202 | Oil & Gas Operator | Dec 2019 |
| 134 | Evolution Energy LLC | | Oil & Gas Operator | Jan 2024 |
| 135 | Evolution Operating Company Inc | Houston, TX 77079 | Oil & Gas Operator | Apr 2024 |
| 136 | Exxon Mobil Corporation | Spring, TX 77389 | Oil & Gas Operator | Apr 2024 |
| 137 | Exxonmobil Oil Corp | Houston, TX 77210 | Oil & Gas Operator | Mar 2024 |
| 138 | Fairway Midstream SVC & TRD | Tulsa, OK 74114 | Oil & Gas Operator | Jun 2006 |
| 139 | Fairway Resources Operating III LLC | | Oil & Gas Operator | Jan 2024 |
| 140 | Fairway Resources Operating, LLC | Southlake, TX 76092 | Oil & Gas Operator | Aug 2022 |
| 141 | Femco SWD Inc | Enid, OK 73702-3907 | Oil Operator | Mar 2014 |
| 142 | Flow Production Company | Midland, TX 79708 | Oil & Gas Operator | Mar 2005 |
| 143 | Focus Energy, Inc. | Oklahoma City, OK 73154 | Oil & Gas Operator | Nov 2019 |
| 144 | Frontier Energy Serv LLC | Enid, OK 73702-1187 | Oil & Gas Operator | Jun 2016 |
| 145 | Gas Development Corp. | Broken Arrow, OK 74012 | Oil & Gas Operator | Mar 2015 |
| 146 | General Atlantic Resources Inc | Denver, CO 80202 | Oil & Gas Operator | Jan 2022 |
| 147 | General Minerals Corp | Oklahoma City, OK 73105 | Oil & Gas Operator | Dec 2015 |
| 148 | Geo Engineering Inc | Houston, TX 77027 | Oil & Gas Operator | Jun 2009 |
| 149 | Geodyne Operating Company | Tulsa, OK 74103 | Oil & Gas Operator | Jun 2015 |
| 150 | Geodyne Resources Inc. | Tulsa, OK 74103 | Oil & Gas Operator | Jul 2010 |
| 151 | Geyer Brothers Equipment Company | Noble, OK 73068-8540 | Oil & Gas Operator | Mar 2011 |
| 152 | GHK Company LLC (The) | Oklahoma City, OK 73118-1120 | Oil & Gas Operator | Apr 2018 |
| 153 | Glacier Petroleum Co Okla Inc | Edmond, OK 73013-1977 | Oil & Gas Operator | Feb 2024 |
| 154 | Green Valley Disposal Serv LLC | Waynoka, OK 73860-0194 | Oil Operator | Feb 2024 |
| 155 | Gulf Exploration, LLC | Oklahoma City, OK 73114 | Oil & Gas Operator | Mar 2024 |
| 156 | H2ox Operating LLC | | Oil Operator | Feb 2024 |
| 157 | Hadson Petro USA Inc | | Oil & Gas Operator | Nov 2016 |
| 158 | Halcon Holdings Inc | Ada, OK 74820 | Oil & Gas Operator | Nov 2018 |
| 159 | Halcyon Natural Gas LLC | Oklahoma City, OK 73116-9111 | Oil & Gas Operator | Feb 2024 |
| 160 | Hall Energy Company LLC | Oklahoma City, OK 73120-5020 | Oil & Gas Operator | Jul 2022 |
| 161 | Hallwood Petroleum, Inc. | Midland, TX 79701 | Oil & Gas Operator | Dec 2023 |
| 162 | Ham Oil Company, LLC | | Oil Operator | Sep 2022 |
| 163 | Hamilton Brothers Oil Co. | Houston, TX 77057 | Oil & Gas Operator | Mar 2015 |
| 164 | Hanna Oil And Gas Company | Fort Smith, AR 72901 | Oil & Gas Operator | Feb 2024 |
| 165 | Heartlands Development Co Inc | Bristow, OK 74010-3826 | Oil & Gas Operator | May 2017 |
| 166 | Helmerich & Payne, Inc. | Tulsa, OK 74114 | Oil & Gas Operator | Jan 2024 |
| 167 | High Sierra Crude Oil& Marketing LLC | Ardmore, OK 73401 | Oil Operator | Nov 2013 |
| 168 | Highland Oil & Gas LLC | Houston, TX 77079-7220 | Oil & Gas Operator | Feb 2015 |
| 169 | Highmark Energy Operating, LLC | Poynor, TX 75782 | Oil & Gas Operator | Apr 2024 |
| 170 | Hilltop Disposal LLC | Elk City, OK 73644-2400 | Oil Operator | Jun 2021 |
| 171 | HK Energy Operating, LLC | Houston, TX 77002 | Oil & Gas Operator | May 2023 |
| 172 | Horn Oil Company | Bristow, OK 74010 | Oil & Gas Operator | Feb 2024 |
| 173 | Hunt Oil Company | Dallas, TX 75201 | Oil & Gas Operator | Apr 2024 |
| 174 | Hunt, H L | Dallas, TX 75202-2785 | Oil & Gas Operator | Feb 2020 |
| 175 | Hy-Carb Energy Inc | | Oil & Gas Operator | Feb 2009 |
| 176 | Inexco Oil Company | Houston, TX 77210 | Oil & Gas Operator | Mar 2013 |
| 177 | Infinity Hydrocarbons LLC | Houston, TX 77079 | Oil & Gas Operator | Aug 2022 |
| 178 | Jma Energy Company LLC | Oklahoma City, OK 73118 | Oil & Gas Operator | Feb 2024 |
| 179 | Jones, L. E. Production Co. | Duncan, OK 73534 | Oil & Gas Operator | Jul 2014 |
| 180 | Jubilee Exploration LLC | | Oil & Gas Operator | Dec 2023 |
| 181 | K S Oil Company Inc | Norman, OK 73072-7480 | Oil & Gas Operator | Feb 2024 |
| 182 | Kaiser-Francis Oil Company | Tulsa, OK 74121 | Oil & Gas Operator | Apr 2024 |
| 183 | KC Resources Inc | Snowmass VLG., CO 81615 | Oil & Gas Operator | Jan 2024 |
| 184 | KCS Medallion Resources, Inc. | Tulsa, OK 74136 | Oil & Gas Operator | Nov 2018 |
| 185 | KCS Resources, LLC | Houston, TX 77027 | Oil & Gas Operator | Feb 2017 |
| 186 | Kelley Oil & Gas | McAlester, OK 74570 | Oil & Gas Operator | May 2013 |
| 187 | Kerr McGee Rocky MTN Corp | Denver, CO 80202-5736 | Oil & Gas Operator | Mar 2015 |
| 188 | Kerr-McGee Oil & Gas Onshore LLC | The Woodlands, TX 77380 | Oil & Gas Operator | Feb 2017 |
| 189 | Key Energy Corporation | Enid, OK 73702-5349 | Oil & Gas Operator | Oct 2017 |
| 190 | Key Production Company, Inc. | Longview, TX 75606 | Oil & Gas Operator | Jan 2024 |
| 191 | Kingfisher Resources Inc | Clinton, OK 73601-1237 | Oil & Gas Operator | Feb 2024 |
| 192 | KNG Producers | Dumas, TX 79029 | Oil & Gas Operator | Oct 2009 |
| 193 | Koch Oil Company | | Oil & Gas Operator | May 2017 |
| 194 | Kybenco Disposals LLC | | Oil Operator | Sep 2022 |
| 195 | L E Jones Operating Inc | Duncan, OK 73534 | Oil & Gas Operator | Feb 2024 |
| 196 | Lake Country Disposal II LLC | | Oil Operator | Jan 2024 |
| 197 | Lake Country Disposal LLC | | Oil Operator | Jan 2024 |
| 198 | Larson Exploration Company | Tulsa, OK 74136-4939 | Oil & Gas Operator | Jul 2016 |
| 199 | Latigo Oil And Gas Inc | Woodward, OK 73802-1208 | Oil & Gas Operator | Feb 2024 |
| 200 | Latigo Petroleum, LLC | Pampa, TX 79066 | Oil & Gas Operator | Apr 2024 |