| 301 | Driver Energy Of Texas | Dallas, TX 75379-5951 | Oil & Gas Operator | Apr 2011 |
| 302 | Drumright Well Service Inc | Oilton, OK 74052-0190 | Oil & Gas Operator | Jan 2024 |
| 303 | Dual Operating & Production Co | Tulsa, OK 74145-7831 | Oil & Gas Operator | Apr 2020 |
| 304 | Dunlap Drilling & Prod Inc | Glenpool, OK 74033-4206 | Oil & Gas Operator | Jan 2024 |
| 305 | Dunlap Oil Company | Bristow, OK 74010-0837 | Oil & Gas Operator | Jan 2024 |
| 306 | Dunlap Well Service Inc | Haskell, OK 74436 | Oil & Gas Operator | Sep 1993 |
| 307 | Dunn Energy LLC | Skiatook, OK 74070-4046 | Oil Operator | Sep 2022 |
| 308 | Durango Exploration LLC | Oklahoma City, OK 73120-5309 | Oil & Gas Operator | Feb 2024 |
| 309 | Dyer Dale E Dba The Loving Company | Tulsa, OK 74157-9451 | Oil & Gas Operator | Jan 2024 |
| 310 | Dyne Exploration Company | Plano, TX 75093-6512 | Oil & Gas Operator | Apr 2020 |
| 311 | Ea Petroleum Inc | Norman, OK 73072-4147 | Oil & Gas Operator | May 2006 |
| 312 | Eagle Energy Production LLC | | Oil & Gas Operator | Mar 2020 |
| 313 | Eagle Minerals & Oil Prop Inc | Tulsa, OK 74119 | Oil & Gas Operator | Jan 2002 |
| 314 | Eagle Operating Company | Tulsa, OK 74146-5730 | Oil & Gas Operator | Aug 2020 |
| 315 | Eagle Resources Inc | Claremore, OK 74019-5398 | Oil & Gas Operator | May 2013 |
| 316 | Eagle River Energy Corporation | Broken Arrow, OK 74011 | Oil & Gas Operator | Jan 2024 |
| 317 | Eagle Road Oil LLC | | Oil & Gas Operator | Jan 2024 |
| 318 | Earl Oil Inc | Stillwater, OK 74074-1079 | Oil & Gas Operator | Feb 2024 |
| 319 | Earl-Le Oil Company | Bristow, OK 74010-9547 | Oil & Gas Operator | Dec 2023 |
| 320 | Earlsboro Energies Corporation | Oklahoma City, OK 73116-3605 | Oil & Gas Operator | Jan 2024 |
| 321 | Edge Oil Company Inc | Cleveland, OK 74020-0284 | Oil & Gas Operator | Dec 2023 |
| 322 | Edinger Engineering, Inc. | Oklahoma City, OK 73102 | Oil & Gas Operator | Mar 2024 |
| 323 | Edmonds Management Company | Richardson, TX 75081 | Oil & Gas Operator | Mar 2015 |
| 324 | Eec Inc | Norman, OK 73069-6344 | Oil & Gas Operator | Feb 2024 |
| 325 | Egret Operating Company | Muskogee, OK 74402-1871 | Oil & Gas Operator | Jan 2024 |
| 326 | Eig Petroleum LLC | | Oil Operator | Aug 2015 |
| 327 | Ekg Operating Inc | Seminole, OK 74818-1028 | Oil & Gas Operator | Nov 2015 |
| 328 | Eland Energy Inc | Dallas, TX 75248 | Oil & Gas Operator | Feb 2024 |
| 329 | Elco Resources LLC | Owasso, OK 74055-7575 | Oil & Gas Operator | Feb 2024 |
| 330 | Elite Resources Inc | Cleveland, OK 74020-0614 | Oil & Gas Operator | Feb 2024 |
| 331 | Emerald Operating Company | Plano, TX 75075 | Oil & Gas Operator | Mar 2024 |
| 332 | Emmaus Energy LLC | | Oil & Gas Operator | Aug 2022 |
| 333 | Emo Inc | Eufaula, OK 74432-0841 | Oil & Gas Operator | Apr 2020 |
| 334 | Empire Petroleum Company | Houston, TX 77044 | Oil Operator | Mar 2011 |
| 335 | Enerfin Resources I Limited Partnership | Houston, TX 77077-2386 | Oil & Gas Operator | Apr 2023 |
| 336 | Energex Corp | Springfield, MO 65807 | Oil & Gas Operator | Jan 2024 |
| 337 | Energex Inc. | Abilene, TX 79604 | Oil & Gas Operator | Apr 2024 |
| 338 | Energy Lease Service Inc | Drumright, OK 74030-7403 | Oil & Gas Operator | Jan 2024 |
| 339 | Energy Resources Dev Inc | Bixby, OK 74008-3658 | Oil & Gas Operator | Jan 2024 |
| 340 | Enersearch Inc | Sand Springs, OK 74063 | Oil & Gas Operator | Dec 2013 |
| 341 | Enersource Petroleum Inc | Bixby, OK 74008-1000 | Oil & Gas Operator | Jan 2024 |
| 342 | Enervest Operating LLC | Houston, TX 77002 | Oil & Gas Operator | Apr 2024 |
| 343 | Enhanced Hydrocarbons Inc | Claremore, OK 74017 | Oil & Gas Operator | May 2013 |
| 344 | Ensource Inc | Midland, TX 79705 | Oil & Gas Operator | Aug 1998 |
| 345 | Enterprise Energy Exploration Inc | Tulsa, OK 74133-6724 | Oil & Gas Operator | Feb 2024 |
| 346 | Enterprise Exploration Inc | Tulsa, OK 74133 | Oil & Gas Operator | Nov 2020 |
| 347 | Enterprising Enterprises Inc | Tulsa, OK 74137 | Oil Operator | Jun 2009 |
| 348 | Eott Energy Operating LP | Houston, TX 77210-4666 | Oil & Gas Operator | Oct 2009 |
| 349 | Ernst Petroleum Company Inc | Arlington, VA 22201 | Oil & Gas Operator | Aug 2013 |
| 350 | Esenjay Exploration, Inc | Houston, TX 77042 | Oil & Gas Operator | Jan 2024 |
| 351 | Esis Inc | | Oil & Gas Operator | Feb 2017 |
| 352 | Eslick Nancy Sue | Bristow, OK 74010-3873 | Oil Operator | Aug 2013 |
| 353 | Excel Operating Inc | Dallas, TX 75234-7300 | Oil & Gas Operator | Jun 2022 |
| 354 | Excel Production Inc | Lubbock, TX 79424-2341 | Oil Operator | Apr 2020 |
| 355 | Exok, Inc | Oklahoma City, OK 73116 | Oil & Gas Operator | Jan 2024 |
| 356 | Explo Oil Inc | Dallas, TX 75251 | Oil & Gas Operator | Apr 2024 |
| 357 | Exxon Mobil Corporation | Spring, TX 77389 | Oil & Gas Operator | Apr 2024 |
| 358 | Eyler Corporation | | Oil & Gas Operator | Nov 2012 |
| 359 | Eyler Dean E | Cleveland, OK 74020-0260 | Oil & Gas Operator | Jan 2024 |
| 360 | Eyler Nelson E | | Oil Operator | Nov 1998 |
| 361 | Fairway Resources, Inc. | Jamestown, NY 14701 | Oil & Gas Operator | Dec 2022 |
| 362 | Falcon Oil Properties LLP | Bristow, OK 74010-0988 | Oil Operator | Jan 2024 |
| 363 | Fallen Timbers Energy LLC | | Oil Operator | Feb 2021 |
| 364 | Farley Christopher D | Lakeview, AR 72642-0135 | Oil & Gas Operator | Jul 2019 |
| 365 | Federal Energy Development Co. | Dallas, TX 75205 | Oil & Gas Operator | Mar 2011 |
| 366 | Fell Oil And Gas Inc | Tulsa, OK 74157-9487 | Oil & Gas Operator | Aug 2016 |
| 367 | Femco SWD Inc | Enid, OK 73702-3907 | Oil Operator | Mar 2014 |
| 368 | Fidgets Energy LLC | | Oil Operator | Jan 2024 |
| 369 | Finney Drilling Co. | Wann, OK 74083-2314 | Oil Operator | Jul 2018 |
| 370 | Firey Oil Company | Sand Springs, OK 74063-0773 | Oil & Gas Operator | Feb 2021 |
| 371 | Fisher Ellis R | Bristow, OK 74010-8515 | Oil & Gas Operator | Dec 2015 |
| 372 | Fisher Ernest B | Bristow, OK 74010 | Oil Operator | May 2023 |
| 373 | Fitzsimmons Randall W & Deborah S | | Oil & Gas Operator | Jan 2024 |
| 374 | Flatt Energy Inc | | Oil & Gas Operator | Sep 2019 |
| 375 | Fluor Oil & Gas Corporation | Midland, TX 79701 | Oil & Gas Operator | Aug 2019 |
| 376 | Flying M Petroleum LLC | | Oil & Gas Operator | Jan 2024 |
| 377 | Forest 1 Development Company | Denver, CO 80202-4966 | Oil & Gas Operator | Mar 2008 |
| 378 | Forrest A Ward | Okmulgee, OK 74447-8891 | Oil & Gas Operator | Nov 2023 |
| 379 | FP Inc. | Oklahoma City, OK 73154 | Oil & Gas Operator | Dec 2008 |
| 380 | Freeman Oil Co | Midland, TX 79701 | Oil & Gas Operator | Sep 2014 |
| 381 | Freestone Resources, Inc | Dallas, TX 75201 | Oil & Gas Operator | Apr 2024 |
| 382 | Fremont Energy Corporation | Oklahoma City, OK 73112 | Oil & Gas Operator | Dec 2004 |
| 383 | Frierson & Kirchner | | Oil & Gas Operator | Mar 2007 |
| 384 | Frisco Energy, L.L.C. | Tulsa, OK 74105 | Oil & Gas Operator | Feb 2024 |
| 385 | G & G Services | Okmulgee, OK 74447 | Oil & Gas Operator | Feb 1993 |
| 386 | Galaxy Corporation (The) | Sapulpa, OK 74067-2003 | Oil & Gas Operator | Feb 2024 |
| 387 | Ganer Oil Company | Blackwell, OK 74631-4221 | Oil & Gas Operator | Jan 2022 |
| 388 | Garvey Oil And Gas LLC | Kellyville, OK 74039-4428 | Oil & Gas Operator | Mar 2015 |
| 389 | Gaskins Glendell L | Slick, OK 74071-0098 | Oil & Gas Operator | Feb 2024 |
| 390 | Gaskins William | Lincoln, NE 68516 | Oil Operator | Dec 1998 |
| 391 | Gazalski Richard S Dba Ski Energy | Henryetta, OK 74437-1208 | Oil & Gas Operator | Dec 2020 |
| 392 | Gda Investments Inc | Oklahoma City, OK 73123-0403 | Oil & Gas Operator | Feb 2024 |
| 393 | Gemini Oil Company | Tulsa, OK 74103 | Oil & Gas Operator | Jan 2024 |
| 394 | General Trading Co Inc | Carrollton, TX 75011-2309 | Oil Operator | Jul 2017 |
| 395 | Genesis Crude Oil LP | Houston, TX 77002 | Oil & Gas Operator | Apr 2000 |
| 396 | Genesis Inc | Seminole, OK 74818-1647 | Oil & Gas Operator | Sep 2014 |
| 397 | Genzer Jim W | Sapulpa, OK 74067-1252 | Oil & Gas Operator | May 2013 |
| 398 | Geo Engineering Inc | Houston, TX 77027 | Oil & Gas Operator | Jun 2009 |
| 399 | Geodyne Operating Company | Tulsa, OK 74103 | Oil & Gas Operator | Jun 2015 |
| 400 | Gibson Les | Welty, OK 74833 | Oil & Gas Operator | Feb 2024 |