| 10401 | Flores & Rucks, Inc. | | Oil & Gas Operator | Jun 1997 |
| 10402 | Florida Exploration Co | Aurora, CO 80014 | Oil & Gas Operator | Sep 1989 |
| 10403 | Florida Gas Exploration Co | | Oil & Gas Operator | Feb 1985 |
| 10404 | Florida Gas Transmission Co. | | Oil Operator | Dec 2007 |
| 10405 | Florine, Inc. | Gypsum, KS 67448 | Oil Operator | Oct 2024 |
| 10406 | Flourison Oil & Gas, LLC | | Oil Operator | Jan 2025 |
| 10407 | Flournoy Oil & Gas, Inc. | Graham, TX 76450 | Oil & Gas Operator | May 2025 |
| 10408 | Flournoy Production Co. | Alice, TX 78333 | Oil & Gas Operator | Dec 2002 |
| 10409 | Flournoy, Russell B. | Breckenridge, TX 76424 | Oil & Gas Operator | Jan 2020 |
| 10410 | Flow Energy Inc. | Bellaire, TX 77401 | Oil & Gas Operator | Sep 1996 |
| 10411 | Flow Production Company | Midland, TX 79708 | Oil & Gas Operator | Mar 2005 |
| 10412 | Flowers Prod Com | | Oil Operator | Aug 1994 |
| 10413 | Flowers Production Co., Inc. | El Dorado, KS 67042 | Oil Operator | Jul 2009 |
| 10414 | Flowers Well Ser | | Oil Operator | Feb 1991 |
| 10415 | Flowin Gold Inc | Sapulpa, OK 74066-9735 | Oil & Gas Operator | Apr 2020 |
| 10416 | Floyd & Alene Jenner | | Oil & Gas Operator | Dec 2003 |
| 10417 | Floyd Oil Company | Houston, TX 77002 | Oil & Gas Operator | Nov 1999 |
| 10418 | Floyd Operating Company | Houston, TX 77002 | Oil & Gas Operator | Jul 2004 |
| 10419 | Floyd Ray Porter | | Oil & Gas Operator | Nov 1986 |
| 10420 | Floyd Williams | | Oil Operator | Aug 1988 |
| 10421 | Floyd, Timber Inc. | Midland, TX 79702 | Oil & Gas Operator | May 2025 |
| 10422 | Flud Richard | Okmulgee, OK 74447 | Oil & Gas Operator | Mar 2015 |
| 10423 | Fluharty Enterprises Inc | Bridgeport, WV 25338 | Oil & Gas Operator | Oct 2021 |
| 10424 | Fluid Disposal Services LLC | Chickasha, OK 73018-9684 | Oil Operator | Aug 2015 |
| 10425 | Fluor Oil & Gas Corporation | Midland, TX 79701 | Oil & Gas Operator | Aug 2019 |
| 10426 | Flusche Brothers | Muenster, TX 76252 | Oil & Gas Operator | May 2025 |
| 10427 | Flusche Herbert J | Wichita Falls, TX 76309 | Oil Operator | Jun 1997 |
| 10428 | Flusche Properties, L.L.C. | Electra, TX 76360 | Oil & Gas Operator | Jan 2017 |
| 10429 | Flusche Supply, Inc. | Electra, TX 76360 | Oil & Gas Operator | Aug 1994 |
| 10430 | Flusche, Herb | Wichita Falls, TX 76309 | Oil & Gas Operator | Mar 2005 |
| 10431 | Fluvanna Community Church | Jamestown, NY 14701 | Gas Operator | Dec 2023 |
| 10432 | Flux Energy LLC | Spring, TX 77379 | Oil & Gas Operator | May 2025 |
| 10433 | Flying Diamond Oil Corp | | Oil & Gas Operator | Dec 1983 |
| 10434 | Flying J Inc | Roosevelt, UT 84066 | Oil & Gas Operator | Jul 1995 |
| 10435 | Flying J Oil & Gas Inc | North Salt Lake, UT 84054 | Oil & Gas Operator | Dec 2009 |
| 10436 | Flying M Petroleum LLC | Bristow, OK 74010 | Oil & Gas Operator | Mar 2025 |
| 10437 | Flying W Resources, LLC | Midland, TX 79701 | Oil & Gas Operator | May 2025 |
| 10438 | Flynn Energy Cor | | Oil & Gas Operator | Mar 1992 |
| 10439 | Flynn Energy Corporation | Tulsa, OK 74137 | Oil & Gas Operator | Mar 1993 |
| 10440 | Flynn, Ben A. Trustee | Coleman, TX 76834 | Oil & Gas Operator | Jul 2001 |
| 10441 | FMC Corporation | Green River, WY 82935 | Oil & Gas Operator | Dec 2008 |
| 10442 | FMD Oil Co. | Gainesville, TX 76240 | Oil & Gas Operator | Nov 2020 |
| 10443 | FMP Operating Co., LTD. PTN. | | Oil & Gas Operator | Mar 1990 |
| 10444 | FMR Services Inc. | | Gas Operator | Dec 2011 |
| 10445 | Fna Oil Company, LLC | Richfield, KS 67953 | Gas Operator | Jan 2025 |
| 10446 | Fne Operating LLC | | Oil Operator | Dec 2024 |
| 10447 | Fo Energy LLC | Canton, OH 44718 | Oil & Gas Operator | Dec 2024 |
| 10448 | Foag, Inc. | Breckenridge, TX 76424 | Oil & Gas Operator | Jun 2022 |
| 10449 | Focus Energy, Inc. | Oklahoma City, OK 73154 | Oil & Gas Operator | Nov 2019 |
| 10450 | Fod Oil Company | | Oil Operator | May 1999 |
| 10451 | Foggy Bottom Farms, LLC | Bowling Green, KY 42101 | Oil Operator | Dec 2023 |
| 10452 | Fola Land Company Inc | | Gas Operator | Dec 2003 |
| 10453 | Folk Oil | | Oil Operator | Dec 2009 |
| 10454 | Follett Operating Co. | Darrouzett, TX 79024 | Oil & Gas Operator | Jun 2019 |
| 10455 | Foltz & Foltz LTD Partnership | Robertsville, OH 44670 | Oil & Gas Operator | Dec 2018 |
| 10456 | Fontainebleau Operating, LLC | | Oil & Gas Operator | Dec 2024 |
| 10457 | Fontenot Pet Land Services, Inc. | | Oil & Gas Operator | Aug 2002 |
| 10458 | Foothill Energy, LLC | Spring, TX 77393 | Oil & Gas Operator | May 2025 |
| 10459 | Foothills Energy LLC | Seabrook, TX 77586-3541 | Gas Operator | Feb 2013 |
| 10460 | Foothills Texas, Inc. | Houston, TX 77269 | Oil & Gas Operator | Aug 2019 |
| 10461 | Fora Company | Borger, TX 79007 | Oil & Gas Operator | May 2025 |
| 10462 | Forbes Harold G | | Oil Operator | Dec 1984 |
| 10463 | Forbes Producing, LLC | Corpus Chrsti, TX 78410 | Oil Operator | May 2025 |
| 10464 | Forbes, C. C. Company | Alice, TX 78333 | Oil & Gas Operator | Sep 2015 |
| 10465 | Forbes, Charles C. | Hebbronville, TX 78361 | Oil & Gas Operator | Jul 2011 |
| 10466 | Forbes, Patrick T. | Eureka, KS 67045 | Oil Operator | Nov 2024 |
| 10467 | Force 4 Energy Resources, Inc. | Austin, TX 78733 | Oil & Gas Operator | Aug 2005 |
| 10468 | Force 5 Energy, LLC | Houston, TX 77090 | Oil & Gas Operator | Dec 2018 |
| 10469 | Force Antrim Development Inc | | Gas Operator | Dec 1999 |
| 10470 | Forcenergy Gas Exploration Inc. | Miami, FL 33129 | Oil & Gas Operator | Aug 1996 |
| 10471 | Forcenergy Inc | Miami, FL 33129 | Oil & Gas Operator | Mar 2015 |
| 10472 | Forcenergy Onshore Inc. | Houston, TX 77002 | Oil & Gas Operator | Dec 2012 |
| 10473 | Ford Chapman & Assoc | Midland, TX 79710 | Oil Operator | Sep 2000 |
| 10474 | Ford Energy Corporation | Chickasha, OK 73018 | Oil & Gas Operator | Feb 2025 |
| 10475 | Ford Gum & Machine Co., Inc. | Akron, NY 14001 | Gas Operator | Dec 2023 |
| 10476 | Ford Tank Truck Service | | Oil Operator | Jan 2022 |
| 10477 | Ford, Cregg | Auburn, NY 13021 | Gas Operator | Dec 2023 |
| 10478 | Ford, Don H. & Assoc. | San Antonio, TX 78217 | Oil & Gas Operator | May 2025 |
| 10479 | Ford, R. J. Inc. | Wichita Falls, TX 76301 | Oil & Gas Operator | May 2025 |
| 10480 | Fordoche Operating Company, LLC | | Oil & Gas Operator | Nov 2024 |
| 10481 | Fordyce Oil & Gas | Sullivan City, TX 78595 | Oil & Gas Operator | Jul 2022 |
| 10482 | Fore Oil, LLC | Manvel, TX 77578 | Oil Operator | May 2021 |
| 10483 | Foree Oil Company | Terrell, TX 75160 | Oil & Gas Operator | May 2025 |
| 10484 | Foree R L | Dallas, TX 75225 | Oil & Gas Operator | Aug 2001 |
| 10485 | Foree, R. L. Trust "A" | Dallas, TX 75225 | Oil & Gas Operator | Dec 1999 |
| 10486 | Foreland Operating, LLC | Royse City, TX 75189 | Oil & Gas Operator | Oct 2021 |
| 10487 | Foreland Resources LLC | Lakewood, CO 80228 | Oil & Gas Operator | Apr 2025 |
| 10488 | Forell Energy Company | Fullerton, CA 92838 | Oil Operator | Dec 2023 |
| 10489 | Foreman Enterprises, Inc. | Edmond, OK 73003 | Oil & Gas Operator | Mar 2025 |
| 10490 | Foreman Joy | Guymon, OK 73942-3159 | Oil & Gas Operator | Jan 2003 |
| 10491 | Forest 1 Development Company | Denver, CO 80202-4966 | Oil & Gas Operator | Mar 2008 |
| 10492 | Forest Gray Energy | | Oil & Gas Operator | Feb 2025 |
| 10493 | Forest Oil Corporation | Houston, TX 77002 | Oil & Gas Operator | Mar 2015 |
| 10494 | Forest Oil Permian Corporation | Houston, TX 77002 | Oil & Gas Operator | Mar 2015 |
| 10495 | Forestar Group Inc | | Oil & Gas Operator | Sep 2015 |
| 10496 | Forestar Oil & Gas LLC | Denver, CO 80202 | Oil & Gas Operator | Aug 2016 |
| 10497 | Forestar Petroleum Corporation | Denver, CO 80202 | Oil & Gas Operator | May 2017 |
| 10498 | Forexco, Inc. | Greensboro, NC 27438 | Oil & Gas Operator | Dec 2020 |
| 10499 | Forge Energy Operating, LLC | San Antonio, TX 78249 | Oil & Gas Operator | Jun 2023 |
| 10500 | Forge Energy, LLC | San Antonio, TX 78249 | Oil & Gas Operator | Apr 2019 |