| 101 | Bristow Resources Inc | Bristow, OK 74010-0659 | Oil & Gas Operator | Jan 2024 |
| 102 | Brittany Energy LLC | San Antonio, TX 78209-0127 | Oil & Gas Operator | May 2019 |
| 103 | Brower Oil & Gas Co., Inc. | Graham, TX 76450 | Oil & Gas Operator | Apr 2024 |
| 104 | Brower, Robert C. | Fort Worth, TX 76116 | Oil & Gas Operator | Apr 2024 |
| 105 | Brown Curt Operating Company | Tulsa, OK 74105 | Oil Operator | Nov 1998 |
| 106 | Brown Dorla M Trust | Tulsa, OK 74133-2926 | Oil & Gas Operator | Dec 2021 |
| 107 | Bunyard Jerry L | Stroud, OK 74079-9705 | Oil & Gas Operator | Jan 2024 |
| 108 | Burkan Oil Company | Tulsa, OK 74137 | Oil & Gas Operator | Dec 1995 |
| 109 | Buxton Energy LLC | Oklahoma City, OK 73116-9111 | Oil & Gas Operator | Apr 2014 |
| 110 | C & J Trucks LLC | Seminole, OK 74868-5406 | Oil & Gas Operator | Mar 2024 |
| 111 | C & L Oil And Gas Corporation | Norman, OK 73069-8224 | Oil & Gas Operator | Feb 2024 |
| 112 | C Rose Oil Co. | Midland, TX 79708 | Oil & Gas Operator | Jan 2024 |
| 113 | Cajeza Energy | Drumright, OK 74030 | Oil & Gas Operator | May 2013 |
| 114 | Cal-Tex Operating Co. | Manchaca, TX 78652 | Oil & Gas Operator | May 2020 |
| 115 | Calyx Energy LLC | Tulsa, OK 74146-3807 | Oil & Gas Operator | Feb 2020 |
| 116 | Canaan Energy Corporation | Oklahoma City, OK 73154-8806 | Oil & Gas Operator | Mar 2015 |
| 117 | Canvas Energy LLC | Oklahoma City, OK 73142-1839 | Oil & Gas Operator | Mar 2024 |
| 118 | Capitol Well Servicing Co., Inc. | Oklahoma City, OK 73143 | Oil & Gas Operator | May 2023 |
| 119 | Capmac Inc | Tulsa, OK 74105-7119 | Oil & Gas Operator | Jan 2007 |
| 120 | Capstone Oilfield Disposal Service LLC | Hennessey, OK 73742-0698 | Oil Operator | Dec 2019 |
| 121 | Cardinal Oil LLC | Drumright, OK 74030-5820 | Oil & Gas Operator | Jan 2024 |
| 122 | Carmac Energy Corporation | Dallas, TX 75219-2311 | Oil & Gas Operator | Jan 2024 |
| 123 | Casillas Petroleum Corp | Satanta, KS 67870 | Oil & Gas Operator | Feb 2024 |
| 124 | Cason William J | Santee, CA 92071-2765 | Oil Operator | Sep 2019 |
| 125 | Cassidy Jr John | Stroud, OK 74079-0200 | Oil & Gas Operator | Nov 2014 |
| 126 | Castle Exploration Company Inc | Blue Bell, PA 19422 | Oil & Gas Operator | May 2018 |
| 127 | CB Oil Company | Drumright, OK 74030-0176 | Oil & Gas Operator | Jan 2024 |
| 128 | CBL Resources LLC | Tulsa, OK 74136-6308 | Oil & Gas Operator | Jan 2024 |
| 129 | Ceja Corporation | Tulsa, OK 74172 | Oil & Gas Operator | Jan 2024 |
| 130 | Cenergy Exploration Company | Dallas, TX 75231 | Oil & Gas Operator | Sep 2000 |
| 131 | Central Ok Reclamation LLC | | Oil & Gas Operator | Jun 2014 |
| 132 | Centrex Operating Company | Tulsa, OK 74105 | Oil & Gas Operator | Jan 2024 |
| 133 | Challenge Operating Inc | Tulsa, OK 74103 | Oil & Gas Operator | Jan 2024 |
| 134 | Cher Oil Company LTD | Ripley, OK 74062-6227 | Oil & Gas Operator | Jan 2024 |
| 135 | Chermac Energy Corporation | Edmond, OK 73083-5446 | Oil & Gas Operator | Apr 2020 |
| 136 | Cherokee Operating Company | Tulsa, OK 74103 | Oil & Gas Operator | Mar 2015 |
| 137 | Chesapeake Operating, LLC | Oklahoma City, OK 73154 | Oil & Gas Operator | Apr 2024 |
| 138 | Chevron USA Inc | Midland, TX 79706 | Oil & Gas Operator | Apr 2024 |
| 139 | Chica Oil Company | Lago VIsta, TX 78645-6561 | Oil & Gas Operator | Mar 2001 |
| 140 | Chizum Oil LLC | Wichita, KS 67211 | Oil & Gas Operator | Feb 2024 |
| 141 | Chowning Oil LLC | Bakersfield, CA 93314-9741 | Oil & Gas Operator | May 2013 |
| 142 | Cimarex Energy Co. Of Colorado | Midland, TX 79706 | Oil & Gas Operator | Apr 2024 |
| 143 | Circle 9 Resources LLC | | Oil & Gas Operator | Jan 2024 |
| 144 | Citation Oil & Gas Corp. | Houston, TX 77269 | Oil & Gas Operator | Apr 2024 |
| 145 | Cleary Exploration LLC | Oklahoma City, OK 73112-7221 | Oil & Gas Operator | Oct 2014 |
| 146 | Clifton & Associates Inc | Tulsa, OK 74133 | Oil & Gas Operator | May 2020 |
| 147 | CMS Energy Inc | Dallas, TX 75287 | Oil & Gas Operator | Jan 2024 |
| 148 | Coalinga Corporation | Houston, TX 77002 | Oil & Gas Operator | May 1999 |
| 149 | Coastal Oils Inc | Oklahoma City, OK 73102 | Oil & Gas Operator | Jan 2013 |
| 150 | Coleman Production | Stroud, OK 74079-9609 | Oil & Gas Operator | May 2013 |
| 151 | Colorado Gas Compression Inc | Longmont, CO 80501-5868 | Oil & Gas Operator | Aug 2013 |
| 152 | Columbia Production Company | Edmond, OK 73083 | Oil & Gas Operator | May 2020 |
| 153 | Compass Drilling Inc | Enid, OK 73702-5467 | Oil & Gas Operator | Sep 2014 |
| 154 | Compass Resources | Enid, OK 73702 | Oil & Gas Operator | Dec 2007 |
| 155 | Confed Oil Incorporated | Tulsa, OK 74103 | Oil & Gas Operator | Mar 2008 |
| 156 | Conn-Okla Producing Co Inc | | Oil & Gas Operator | Nov 1992 |
| 157 | Conoco Inc. | Houston, TX 77252 | Oil & Gas Operator | Mar 2015 |
| 158 | ConocoPhillips Company | Midland, TX 79701 | Oil & Gas Operator | Apr 2024 |
| 159 | Consolidated Investments | Seminole, OK 74818-0651 | Oil & Gas Operator | Jan 2024 |
| 160 | Consolidated Peto Equity LTD | La Crescenta, CA 91214 | Oil & Gas Operator | Dec 1996 |
| 161 | Consolidated Properties | Tulsa, OK 74129 | Oil & Gas Operator | Jan 2017 |
| 162 | Contango Resources LLC | Houston, TX 77002 | Oil & Gas Operator | Apr 2024 |
| 163 | Continental Oil & Refining Co | Catoosa, OK 74015-0831 | Oil & Gas Operator | Oct 2023 |
| 164 | Continental Operating Co. | Houston, TX 77024 | Oil & Gas Operator | Apr 2024 |
| 165 | Continental Resources, Inc. | Oklahoma City, OK 73126 | Oil & Gas Operator | Apr 2024 |
| 166 | Convest Energy Corporation | Houston, TX 77057 | Oil & Gas Operator | Sep 2014 |
| 167 | Cooke County Production Company | Shawnee, OK 74801-1800 | Oil & Gas Operator | Jan 2022 |
| 168 | Cooper Mineral Group Inc | Bellaire, TX 77401 | Oil & Gas Operator | Feb 2004 |
| 169 | Corwin, B. V. | Enid, OK 73701 | Oil & Gas Operator | Apr 2017 |
| 170 | Cougar Energy Investment LLC | Spring, TX 77387-7277 | Oil & Gas Operator | Sep 2014 |
| 171 | Covington Oil Company Inc | Oklahoma City, OK 73154-1470 | Oil & Gas Operator | Feb 2024 |
| 172 | CP Energy LLC | Edmond, OK 73034 | Oil Operator | Feb 2024 |
| 173 | Craig Elder Oil And Gas LLC | Edmond, OK 73013-9791 | Oil & Gas Operator | Jan 2024 |
| 174 | Crawley Petroleum Corporation | Oklahoma City, OK 73102 | Oil & Gas Operator | Apr 2024 |
| 175 | Crown Energy Company | Oklahoma City, OK 73106 | Oil & Gas Operator | Jan 2024 |
| 176 | Crude Marketing & Trans Inc | Tulsa, OK 74159 | Oil & Gas Operator | Sep 2017 |
| 177 | Crude Resources | Sapulpa, OK 74066 | Oil & Gas Operator | Mar 2008 |
| 178 | Cudd Operating Corp. | Oklahoma City, OK 73118 | Oil & Gas Operator | Apr 2020 |
| 179 | Culp & Copple Oil Company | Cushing, OK 74023-1442 | Oil & Gas Operator | Apr 2022 |
| 180 | Cumberland Operating Company | Seminole, OK 74868-1258 | Oil & Gas Operator | Mar 2007 |
| 181 | CVR Supply & Trading LLC | Sugar Land, TX 77479 | Oil & Gas Operator | Oct 2023 |
| 182 | CW Investments | Okmulgee, OK 74447-4026 | Oil & Gas Operator | Jan 2024 |
| 183 | D & B Operating LLC | | Oil Operator | Jan 2023 |
| 184 | D & G Oil & Gas Company Inc | Enid, OK 73702-2027 | Oil & Gas Operator | Nov 2021 |
| 185 | D & J Oil Company Of Okla Inc | Enid, OK 73706-0129 | Oil & Gas Operator | May 1999 |
| 186 | D & J Tank Trucks Inc | Drumright, OK 74030-0133 | Oil Operator | Feb 2024 |
| 187 | D & M Production Co Inc | Drumright, OK 74030-0232 | Oil & Gas Operator | Jan 2024 |
| 188 | Daco, Inc. | Spearman, TX 79081 | Oil & Gas Operator | Apr 2024 |
| 189 | Danick Operating USA Inc | | Oil & Gas Operator | Oct 2022 |
| 190 | Darling Dan Oil | | Oil & Gas Operator | Sep 2018 |
| 191 | Daube Company The | Ardmore, OK 73402 | Oil & Gas Operator | Feb 2024 |
| 192 | Daube Exploration Company | Ardmore, OK 73402 | Oil & Gas Operator | Nov 2020 |
| 193 | Davis Bros. Oil Producers, Inc. | Tulsa, OK 74119 | Oil & Gas Operator | Apr 2020 |
| 194 | Dawson-Markwell Exploration Co. | Oklahoma City, OK 73101 | Oil & Gas Operator | Jan 2024 |
| 195 | DC Operating LLC | | Oil & Gas Operator | Mar 2020 |
| 196 | DCP Operating Co LP | Houston, TX 77042 | Oil & Gas Operator | Jan 2024 |
| 197 | Deck Oil Company | Tulsa, OK 74101 | Oil & Gas Operator | Jun 2020 |
| 198 | Dedica Energy Corporation | Mattoon, IL 61938 | Oil & Gas Operator | Mar 2008 |
| 199 | Delong Oil & Gas Serv Inc | Drumright, OK 74030-0591 | Oil & Gas Operator | Nov 2023 |
| 200 | Delong Ralph J | Sapulpa, OK 74066 | Oil & Gas Operator | Nov 2005 |