| 201 | Dehart Company (The) | Ardmore, OK 73402-0907 | Oil & Gas Operator | Feb 2024 |
| 202 | Deisenroth Gas Products Inc | Tulsa, OK 74104 | Oil & Gas Operator | Aug 2022 |
| 203 | Deisenroth M Craig | Tulsa, OK 74104-6511 | Oil & Gas Operator | Jan 2024 |
| 204 | Deka Exploration Inc | Oklahoma City, OK 73113-0057 | Oil & Gas Operator | Nov 2019 |
| 205 | Delta D Operations | Wilson, OK 73463 | Oil & Gas Operator | Jul 2014 |
| 206 | Delta D Operations Inc | Ardmore, OK 73401-8678 | Oil & Gas Operator | Apr 2014 |
| 207 | Demier Oil Company | Tulsa, OK 74105-2128 | Oil & Gas Operator | Nov 2008 |
| 208 | Depco Inc. | Denver, CO 80202 | Oil & Gas Operator | Apr 2014 |
| 209 | Derae Oil Company | Seminole, OK 74868-2617 | Oil & Gas Operator | Feb 1997 |
| 210 | Derrick Resources Inc. | Henryetta, OK 74437-4249 | Oil & Gas Operator | Jan 2024 |
| 211 | Deshields Gary | Atwood, OK 74827-9736 | Oil Operator | Sep 2023 |
| 212 | Deshields Oil & Gas Inc | Okemah, OK 74859-9612 | Oil & Gas Operator | Sep 2014 |
| 213 | Devon Energy Corp (Nevada) | Oklahoma City, OK 73102 | Oil & Gas Operator | Feb 2017 |
| 214 | Devon Energy Production Company LP | Oklahoma City, OK 73102 | Oil & Gas Operator | Apr 2024 |
| 215 | Diamond Energy Operating Company | Tulsa, OK 74137 | Oil & Gas Operator | Mar 2005 |
| 216 | Diamond Harry H Inc | Shawnee, OK 74802-0336 | Oil & Gas Operator | Feb 2024 |
| 217 | Digger Oil & Gas Inc | Prague, OK 74864-0666 | Oil & Gas Operator | Jan 2024 |
| 218 | Dinsmore C E | Enid, OK 73702 | Oil & Gas Operator | May 2009 |
| 219 | Dobson Oil Operators Inc | Sapulpa, OK 74066 | Oil & Gas Operator | Dec 2004 |
| 220 | Dominion Ok TX E & P Inc | Oklahoma City, OK 73134 | Oil & Gas Operator | Nov 2018 |
| 221 | Dorchester Resources LP | Oklahoma City, OK 73154 | Oil & Gas Operator | Aug 2021 |
| 222 | Douglass Dietz & Daley Inc | Oklahoma City, OK 73154-0125 | Oil & Gas Operator | Aug 2023 |
| 223 | Dove Investments LLC | | Oil Operator | Dec 2023 |
| 224 | Draco Production Company | Tulsa, OK 74133 | Oil & Gas Operator | Jul 2012 |
| 225 | Drumright Well Service Inc | Oilton, OK 74052-0190 | Oil & Gas Operator | Jan 2024 |
| 226 | Dual Operating & Production Co | Tulsa, OK 74145-7831 | Oil & Gas Operator | Apr 2020 |
| 227 | Duncan Ronald R | Okemah, OK 74859-9603 | Oil & Gas Operator | Aug 2023 |
| 228 | Dyne Exploration Company | Plano, TX 75093-6512 | Oil & Gas Operator | Apr 2020 |
| 229 | E Lyle Johnson Inc | | Oil & Gas Operator | Feb 2024 |
| 230 | Eagle Gas Marketing Co | Oklahoma City, OK 73114-2202 | Oil & Gas Operator | Nov 2022 |
| 231 | Eagle Oil & Gas Properties Inc | Pleasant Prarie, WI 53158-4719 | Oil & Gas Operator | Jan 2016 |
| 232 | Eagle Rock Mid-Continent Operating LLC | Tulsa, OK 74103-3703 | Oil & Gas Operator | Jan 2024 |
| 233 | Edinger Engineering, Inc. | Oklahoma City, OK 73102 | Oil & Gas Operator | Mar 2024 |
| 234 | Eec Inc | Norman, OK 73069-6344 | Oil & Gas Operator | Feb 2024 |
| 235 | Egan Resources Inc. | Katy, TX 77494 | Oil & Gas Operator | Oct 2016 |
| 236 | El Paso Production Company | Houston, TX 77002 | Oil & Gas Operator | Mar 2016 |
| 237 | Elite Resources Inc | Cleveland, OK 74020-0614 | Oil & Gas Operator | Feb 2024 |
| 238 | Emc Exploration Company Inc | Oklahoma City, OK 73103-3775 | Oil & Gas Operator | Jul 2007 |
| 239 | Emmaus Energy LLC | | Oil & Gas Operator | Aug 2022 |
| 240 | Enable Oklahoma Intrastate Transmission LLC | Dallas, TX 75225-6142 | Oil & Gas Operator | Jul 2022 |
| 241 | Encore Operating LP | Plano, TX 75024 | Oil & Gas Operator | Feb 2024 |
| 242 | Enerfin Resources I Limited Partnership | Houston, TX 77077-2386 | Oil & Gas Operator | Apr 2023 |
| 243 | Energy Environment Inc | Holdenville, OK 74848-0765 | Oil & Gas Operator | Jul 2016 |
| 244 | Energy Production Services LLC | Oklahoma City, OK 73162-4736 | Oil & Gas Operator | Apr 2020 |
| 245 | Energyquest II, LLC | The Woodlands, TX 77381 | Oil & Gas Operator | Jan 2024 |
| 246 | Enersearch Inc | Sand Springs, OK 74063 | Oil & Gas Operator | Dec 2013 |
| 247 | Enersource Royalty Corporation | Oklahoma City, OK 73102 | Oil & Gas Operator | May 2013 |
| 248 | Enervest Operating LLC | Houston, TX 77002 | Oil & Gas Operator | Apr 2024 |
| 249 | Ennis Bill H | Sasakwa, OK 74867-0001 | Oil & Gas Operator | Sep 2014 |
| 250 | Enogex Services Corporation | Oklahoma City, OK 73124-0300 | Oil & Gas Operator | Apr 2009 |
| 251 | EOG Resources Inc | Midland, TX 79702 | Oil & Gas Operator | Apr 2024 |
| 252 | Excel Production Inc | Lubbock, TX 79424-2341 | Oil Operator | Apr 2020 |
| 253 | Exok, Inc | Oklahoma City, OK 73116 | Oil & Gas Operator | Jan 2024 |
| 254 | Exoko Operating Company Inc | Tulsa, OK 74170-0246 | Oil & Gas Operator | Jan 2006 |
| 255 | Export Petroleum Corporation | Fort Worth, TX 76147 | Oil & Gas Operator | Apr 2024 |
| 256 | Express Oil & Gas LLC | | Oil & Gas Operator | Jan 2024 |
| 257 | Exxon Mobil Corporation | Spring, TX 77389 | Oil & Gas Operator | Apr 2024 |
| 258 | Fairfield Oil & Gas Corp | Edmond, OK 73083-6786 | Oil & Gas Operator | Nov 2021 |
| 259 | Fairway Midstream SVC & TRD | Tulsa, OK 74114 | Oil & Gas Operator | Jun 2006 |
| 260 | Faith Production LLC | Holdenville, OK 74848-0005 | Oil & Gas Operator | Feb 2024 |
| 261 | Farley Christopher D | Lakeview, AR 72642-0135 | Oil & Gas Operator | Jul 2019 |
| 262 | Farmers Energy Corporation | Tulsa, OK 74103-3525 | Oil & Gas Operator | Nov 2021 |
| 263 | Femco SWD Inc | Enid, OK 73702-3907 | Oil Operator | Mar 2014 |
| 264 | Flagin Operating LLC | | Oil & Gas Operator | Jan 2024 |
| 265 | Flint Douglas J | Mounds, OK 74047-5415 | Oil & Gas Operator | Sep 2015 |
| 266 | Flint J A & Associates | Holdenville, OK 74848 | Oil & Gas Operator | Sep 2009 |
| 267 | Focus Energy, Inc. | Oklahoma City, OK 73154 | Oil & Gas Operator | Nov 2019 |
| 268 | Formor Operating Inc | Tyler, TX 75701 | Oil & Gas Operator | May 2013 |
| 269 | Foundation Energy Management, LLC | Addison, TX 75001 | Oil & Gas Operator | Apr 2024 |
| 270 | FP Inc. | Oklahoma City, OK 73154 | Oil & Gas Operator | Dec 2008 |
| 271 | Frank T Fleet Inc | Ada, OK 74821-0729 | Oil Operator | Jan 2024 |
| 272 | Freedom Operating Company LLC | | Oil & Gas Operator | Jan 2024 |
| 273 | Fremont Energy Corporation | Oklahoma City, OK 73112 | Oil & Gas Operator | Dec 2004 |
| 274 | Fremont Exploration, Inc. | Oklahoma City, OK 73156 | Oil & Gas Operator | Nov 2014 |
| 275 | G R B Resources Inc | Tulsa, OK 74136-5108 | Oil & Gas Operator | Aug 2013 |
| 276 | Gatewood Edward J "Bob" | Holdenville, OK 74848 | Oil & Gas Operator | May 2013 |
| 277 | Gel Oil & Gas Inc | Wetumka, OK 74883-6238 | Oil & Gas Operator | Jul 2016 |
| 278 | General Petroleum Corp | Sand Springs, OK 74063-6646 | Oil & Gas Operator | Jul 2015 |
| 279 | Genesis Inc | Seminole, OK 74818-1647 | Oil & Gas Operator | Sep 2014 |
| 280 | Geo Engineering Inc | Houston, TX 77027 | Oil & Gas Operator | Jun 2009 |
| 281 | Geoex Resources Inc | | Oil & Gas Operator | Jan 1997 |
| 282 | Geoquest Energy Inc | Enid, OK 73706-0216 | Oil & Gas Operator | Nov 2015 |
| 283 | Gilbert Oil Properties | Tulsa, OK 74105-3741 | Oil Operator | Jan 2024 |
| 284 | GLB Exploration, Inc. | Oklahoma City, OK 73102 | Oil & Gas Operator | Feb 2024 |
| 285 | Glenco Oil & Gas Corporation | Wewoka, OK 74884-0727 | Oil & Gas Operator | Sep 2021 |
| 286 | Glenn Supply Company, Inc. | Tulsa, OK 74101 | Oil & Gas Operator | Jan 2024 |
| 287 | Golden Gas Service Company | Tulsa, OK 74114-1757 | Oil & Gas Operator | Feb 2024 |
| 288 | Gomaco Inc | Tulsa, OK 74103-5061 | Oil & Gas Operator | Apr 2015 |
| 289 | Gomaco Operating Company | Tulsa, OK 74115-8712 | Oil & Gas Operator | Feb 2024 |
| 290 | Gothic Energy Corporation | Tulsa, OK 74136 | Oil & Gas Operator | Jul 2015 |
| 291 | Gothic Production Corporation | Oklahoma City, OK 73154 | Oil & Gas Operator | Dec 2016 |
| 292 | Grand Resources Inc | Tulsa, OK 74137 | Oil & Gas Operator | Apr 2024 |
| 293 | Grant Petroleum Corporation | Horseshoe Bay, TX 78657-8926 | Oil & Gas Operator | Dec 2014 |
| 294 | Great Plains Oil & Gas | Ada, OK 74820-7209 | Oil & Gas Operator | May 2013 |
| 295 | Great Southwestern Expl Inc | Tulsa, OK 74105 | Oil & Gas Operator | Jan 2024 |
| 296 | Green Operating Company, Inc. | Tulsa, OK 74135 | Oil & Gas Operator | Feb 2023 |
| 297 | Green Valley Disposal Serv LLC | Waynoka, OK 73860-0194 | Oil Operator | Feb 2024 |
| 298 | Green William G | Jenks, OK 74037-3233 | Oil & Gas Operator | Apr 2020 |
| 299 | Grizzly Operating LLC | Houston, TX 77057 | Oil & Gas Operator | Feb 2024 |
| 300 | Gugli Corporation | Ada, OK 74821-1527 | Oil & Gas Operator | Sep 2014 |