| 401 | Flatt Energy Inc | | Oil & Gas Operator | Sep 2019 |
| 402 | Flatwater Energy, LLC | | Oil & Gas Operator | Jan 2024 |
| 403 | Flavian Oil Company | Dallas, TX 75206 | Gas Operator | Jan 1997 |
| 404 | Fleeharty Willie W | | Oil & Gas Operator | Jun 1991 |
| 405 | Fleeman Teresa R | Lower Salem, OH 45745 | Oil & Gas Operator | Dec 2022 |
| 406 | Fleet Frank T | Ada, OK 74821-0729 | Oil & Gas Operator | Feb 2003 |
| 407 | Fleet Oil Co. | | Oil & Gas Operator | Dec 1991 |
| 408 | Fleetwood K Phil Oil Properties | Marlow, OK 73055 | Oil & Gas Operator | Dec 2023 |
| 409 | Fletcher Oil LLC | Ratliff City, OK 73481-0012 | Oil & Gas Operator | Dec 2023 |
| 410 | Fletcher Operating Co. | | Oil & Gas Operator | May 1989 |
| 411 | Fletcher Operating, LLC | Fairhope, AL 36533 | Oil & Gas Operator | Apr 2024 |
| 412 | Fletcher Petroleum Corp. | Fairhope, AL 36533 | Oil & Gas Operator | Dec 2023 |
| 413 | Fletcher, M. D. | Pampa, TX 79065 | Oil & Gas Operator | Dec 2007 |
| 414 | Flex Energy, L.L.C. | | Oil & Gas Operator | Feb 2010 |
| 415 | Flicka Energy Inc | Crescent, OK 73028-0137 | Oil & Gas Operator | Mar 2022 |
| 416 | Flint Douglas J | Mounds, OK 74047-5415 | Oil & Gas Operator | Sep 2015 |
| 417 | Flint Hills Production Co., Inc. | Gas City, KS 66742 | Oil Operator | Nov 2009 |
| 418 | Flint Interests, LLC | Houston, TX 77057 | Oil & Gas Operator | Apr 2024 |
| 419 | Flint J A & Associates | Holdenville, OK 74848 | Oil & Gas Operator | Sep 2009 |
| 420 | Flint Oak Energy, LLC | Montgomery, TX 77356 | Oil & Gas Operator | Apr 2024 |
| 421 | Flint Oil & Gas | San Angelo, TX 76904 | Oil & Gas Operator | Aug 2003 |
| 422 | Flint Pipeline Company | Kilgore, TX 75663 | Oil & Gas Operator | Apr 2024 |
| 423 | Flint Rock Resources MGMNT, Inc. | Austin, TX 78734 | Oil & Gas Operator | Apr 2024 |
| 424 | Flint, Billy Individual | Merkel, TX 79536 | Oil & Gas Operator | Apr 2024 |
| 425 | Flintstone Energy, LLC | El Dorado, KS 67042 | Oil Operator | Jun 2020 |
| 426 | Flo A & P Inc. | Seminole, TX 79360 | Oil & Gas Operator | Feb 2024 |
| 427 | Flo Petro, LLC. | Austin, TX 78746 | Oil Operator | Apr 2024 |
| 428 | Floex Energy LLC | Tyler, TX 75701 | Oil Operator | Apr 2024 |
| 429 | Flood Thirty Seven LLC | Bartlesville, OK 74005-2306 | Oil Operator | Jan 2024 |
| 430 | Flora B Shinnick | | Oil Operator | Jan 2024 |
| 431 | Flora Resources | | Oil Operator | Nov 2023 |
| 432 | Florabama Assoc Inc | | Oil & Gas Operator | Jan 2000 |
| 433 | Florentine Exploration & Production, Inc. | | Oil Operator | Mar 1997 |
| 434 | Flores & Rucks, Inc. | | Oil & Gas Operator | Jun 1997 |
| 435 | Florida Exploration Co | Aurora, CO 80014 | Oil & Gas Operator | Sep 1989 |
| 436 | Florida Gas Exploration Co | | Oil & Gas Operator | Feb 1985 |
| 437 | Florida Gas Transmission Co. | | Oil Operator | Dec 2007 |
| 438 | Florine, Inc. | Gypsum, KS 67448 | Oil Operator | Aug 2023 |
| 439 | Flourison Oil & Gas, LLC | | Oil Operator | Jan 2024 |
| 440 | Flournoy Oil & Gas, Inc. | Graham, TX 76450 | Oil & Gas Operator | Apr 2024 |
| 441 | Flournoy Production Co. | Alice, TX 78333 | Oil & Gas Operator | Dec 2002 |
| 442 | Flow Energy Inc. | Bellaire, TX 77401 | Oil & Gas Operator | Sep 1996 |
| 443 | Flow Production Company | Midland, TX 79708 | Oil & Gas Operator | Mar 2005 |
| 444 | Flowers Prod Com | | Oil Operator | Aug 1994 |
| 445 | Flowers Production Co., Inc. | El Dorado, KS 67042 | Oil Operator | Jul 2009 |
| 446 | Flowers Well Ser | | Oil Operator | Feb 1991 |
| 447 | Flowin Gold Inc | Sapulpa, OK 74066-9735 | Oil & Gas Operator | Apr 2020 |
| 448 | Floyd & Alene Jenner | | Oil & Gas Operator | Dec 2003 |
| 449 | Floyd Oil Company | Houston, TX 77002 | Oil & Gas Operator | Nov 1999 |
| 450 | Floyd Operating Company | Houston, TX 77002 | Oil & Gas Operator | Jul 2004 |
| 451 | Floyd Ray Porter | | Oil & Gas Operator | Nov 1986 |
| 452 | Floyd Williams | | Oil Operator | Aug 1988 |
| 453 | Floyd, Timber Inc. | Midland, TX 79702 | Oil & Gas Operator | Apr 2024 |
| 454 | Flud Richard | Okmulgee, OK 74447 | Oil & Gas Operator | Mar 2015 |
| 455 | Fluharty Enterprises Inc | West Milford, WV 26451-0295 | Oil & Gas Operator | Oct 2021 |
| 456 | Fluid Disposal Services LLC | | Oil Operator | Aug 2015 |
| 457 | Fluor Oil & Gas Corporation | Midland, TX 79701 | Oil & Gas Operator | Aug 2019 |
| 458 | Flusche Brothers | Muenster, TX 76252 | Oil & Gas Operator | Apr 2024 |
| 459 | Flusche Herbert J | Wichita Falls, TX 76309 | Oil Operator | Jun 1997 |
| 460 | Flusche Properties, L.L.C. | Electra, TX 76360 | Oil & Gas Operator | Jan 2017 |
| 461 | Flusche Supply, Inc. | Electra, TX 76360 | Oil & Gas Operator | Aug 1994 |
| 462 | Flusche, Herb | Wichita Falls, TX 76309 | Oil & Gas Operator | Mar 2005 |
| 463 | Fluvanna Community Church | Jamestown, NY 14701 | Gas Operator | Dec 2022 |
| 464 | Flux Energy LLC | | Gas Operator | Dec 2023 |
| 465 | Flying Diamond Oil Corp | | Oil & Gas Operator | Dec 1983 |
| 466 | Flying J Inc | Roosevelt, UT 84066 | Oil & Gas Operator | Jul 1995 |
| 467 | Flying J Oil & Gas Inc | North Salt Lake, UT 84054 | Oil & Gas Operator | Dec 2009 |
| 468 | Flying M Petroleum LLC | | Oil & Gas Operator | Dec 2023 |
| 469 | Flying W Resources, LLC | Midland, TX 79710 | Oil & Gas Operator | Apr 2024 |
| 470 | Flynn Energy Cor | | Oil & Gas Operator | Mar 1992 |
| 471 | Flynn Energy Corporation | Tulsa, OK 74137 | Oil & Gas Operator | Mar 1993 |
| 472 | Flynn Family Bypass Trust | Southlake, TX 76092 | Oil & Gas Operator | Apr 2024 |
| 473 | Flynn, Ben A. Trustee | Coleman, TX 76834 | Oil & Gas Operator | Jul 2001 |
| 474 | Flywheel Energy Production, LLC | Oklahoma City, OK 73102 | Gas Operator | Feb 2024 |
| 475 | FMC Corporation | Green River, WY 82935 | Oil & Gas Operator | Dec 2008 |
| 476 | FMD Oil Co. | Gainesville, TX 76240 | Oil & Gas Operator | Nov 2020 |
| 477 | FMP Operating Co., LTD. PTN. | | Oil & Gas Operator | Mar 1990 |
| 478 | Fna Oil Company, LLC | Richfield, KS 67953 | Gas Operator | Dec 2023 |
| 479 | Fo Energy LLC | Canton, OH 44718 | Oil & Gas Operator | Dec 2023 |
| 480 | Foag, Inc. | Breckenridge, TX 76424 | Oil & Gas Operator | Jun 2022 |
| 481 | Focus Energy, Inc. | Oklahoma City, OK 73154 | Oil & Gas Operator | Nov 2019 |
| 482 | Fod Oil Company | | Oil Operator | May 1999 |
| 483 | Foggy Bottom Farms, LLC | Bowling Green, KY 42101 | Oil Operator | Dec 2021 |
| 484 | Fola Land Company Inc | | Gas Operator | Dec 2003 |
| 485 | Folk Oil | | Oil Operator | Dec 2009 |
| 486 | Follett Operating Co. | Darrouzett, TX 79024 | Oil & Gas Operator | Jun 2019 |
| 487 | Foltz & Foltz LTD Partnership | Robertsville, OH 44670 | Oil & Gas Operator | Dec 2018 |
| 488 | Fontainebleau Operating, LLC | | Oil & Gas Operator | Dec 2023 |
| 489 | Fontenot Pet Land Services, Inc. | | Oil & Gas Operator | Aug 2002 |
| 490 | Fontus Eor, LLC | Houston, TX 77088 | Oil Operator | May 2023 |
| 491 | Foothill Energy, LLC | Spring, TX 77393 | Oil & Gas Operator | Apr 2024 |
| 492 | Foothills Energy LLC | Seabrook, TX 77586-3541 | Gas Operator | Feb 2013 |
| 493 | Foothills Texas, Inc. | Houston, TX 77269 | Oil & Gas Operator | Aug 2019 |
| 494 | Fora Company | Borger, TX 79007 | Oil & Gas Operator | Apr 2024 |
| 495 | Forbes Harold G | | Oil Operator | Dec 1984 |
| 496 | Forbes Producing, LLC | Corpus Chrsti, TX 78410 | Oil Operator | Apr 2024 |
| 497 | Forbes, C. C. Company | Alice, TX 78333 | Oil & Gas Operator | Sep 2015 |
| 498 | Forbes, Charles C. | Hebbronville, TX 78361 | Oil & Gas Operator | Jul 2011 |
| 499 | Forbes, Patrick T. | Eureka, KS 67045 | Oil Operator | Nov 2023 |
| 500 | Force 4 Energy Resources, Inc. | Austin, TX 78733 | Oil & Gas Operator | Aug 2005 |