| 1 | F & F Drilling Company | | Oil Operator | Apr 1991 |
| 2 | F & G Exploration, LLC | Ada, MI 49301 | Gas Operator | Dec 2024 |
| 3 | F & G Management LLC | Claremore, OK 74019-0392 | Oil Operator | Jul 2025 |
| 4 | F & H Production | | Oil & Gas Operator | Apr 2014 |
| 5 | F & H Production Service | | Oil & Gas Operator | Apr 1987 |
| 6 | F & J Oil Company, L.L.C. | | Oil Operator | Aug 2025 |
| 7 | F & J Oil LLC | Newcastle, WY 82701 | Oil & Gas Operator | Oct 2015 |
| 8 | F & J Petroleum Company | Milano, TX 76556 | Oil Operator | Dec 2025 |
| 9 | F & L Petroleum, LLC | | Oil & Gas Operator | Apr 2019 |
| 10 | F & M Oil & Gas Co | Midland, TX 79702 | Oil & Gas Operator | Feb 2000 |
| 11 | F & M Oil Compan | | Oil & Gas Operator | Feb 1993 |
| 12 | F & M Oil Company Inc | Pettus, TX 78146 | Oil & Gas Operator | Dec 2025 |
| 13 | F & R Oil Co. | Dallas, TX 75205 | Oil & Gas Operator | May 2005 |
| 14 | F & S Energy LLC | Crescent, OK 73028 | Oil & Gas Operator | Sep 2025 |
| 15 | F & S Oil | | Oil Operator | Dec 2021 |
| 16 | F & S Petroleum, L.L.C. | Lebanon, MO 65536 | Oil & Gas Operator | Dec 2025 |
| 17 | F B Operating, Inc. | Montague, TX 76251 | Oil & Gas Operator | Aug 2003 |
| 18 | F C D Oil Corporation | Oklahoma City, OK 73112 | Oil & Gas Operator | Feb 1995 |
| 19 | F D & Jack Oil Company | Muskogee, OK 74402-1444 | Oil & Gas Operator | May 2015 |
| 20 | F Davis Oil & Gas LLC | Cleveland, OK 74020 | Oil Operator | Aug 2025 |
| 21 | F E W Oil Compan | | Oil Operator | Jul 1993 |
| 22 | F H Walsh Jr Operating Co Inc | | Oil & Gas Operator | Jul 1995 |
| 23 | F Howard Walsh Jr | | Oil & Gas Operator | Aug 1992 |
| 24 | F L Energy | Holladay, UT 84117-4972 | Oil & Gas Operator | Feb 2007 |
| 25 | F M C Operating LLC | Okmulgee, OK 74447 | Oil & Gas Operator | Feb 2025 |
| 26 | F M Hoel | | Oil & Gas Operator | Dec 2000 |
| 27 | F O & G LLC | Pawhuska, OK 74056-5075 | Oil Operator | Apr 2022 |
| 28 | F P C Disposal Inc | El Reno, OK 73036-5501 | Oil Operator | Apr 2003 |
| 29 | F P I Antrim One Inc | | Gas Operator | Nov 1991 |
| 30 | F R Etchen, Jr | | Oil & Gas Operator | Sep 1985 |
| 31 | F W Rabalais, Inc. | | Oil & Gas Operator | Dec 2014 |
| 32 | F Y B Investments, Inc. | Midland, TX 79711 | Oil & Gas Operator | Sep 1995 |
| 33 | F&H Operating Company LLC | Wichita Falls, TX 76308 | Oil & Gas Operator | Dec 2025 |
| 34 | F-B Oil, LP | Decatur, TX 76234 | Oil Operator | Aug 2015 |
| 35 | F-W Oil Interests, Inc. | Houston, TX 77024 | Oil & Gas Operator | Dec 2006 |
| 36 | F. B. R. Production Company | Pampa, TX 79066 | Oil & Gas Operator | May 2000 |
| 37 | F. E. Hargraves | | Oil Operator | Mar 1983 |
| 38 | F. H. B. Company | Holliday, TX 76366 | Oil & Gas Operator | Dec 2025 |
| 39 | F.A.S. Environmental Services, L.L.C. | | Oil Operator | Jan 2025 |
| 40 | F.D. Looman | Sedan, KS 67361 | Oil Operator | Jun 2008 |
| 41 | F.E.Hargraves &Sons DRL.Co.Inc. | | Oil & Gas Operator | Mar 1992 |
| 42 | F.E.W. Oil Co. | Oceanside, CA 92058 | Oil Operator | Oct 2012 |
| 43 | F.G. Holl Co., LLC | Wichita, KS 67206 | Oil & Gas Operator | Jun 2025 |
| 44 | F.I.G. Energy, LLC | Livingston, TX 77399 | Oil & Gas Operator | Dec 2025 |
| 45 | F.M.C. Operating, Inc. | Austin, TX 78750 | Oil & Gas Operator | Oct 1996 |
| 46 | F.S.M. Oil Co. | | Oil Operator | Aug 1979 |
| 47 | Fabco | Big Lake, TX 76932 | Oil & Gas Operator | Dec 2025 |
| 48 | Fackrell & Associates LLC | Ardmore, OK 73402-1452 | Oil Operator | Aug 2025 |
| 49 | Factor, J. S. Pridmore | Spencer, WV 25276-0000 | Gas Operator | Dec 2017 |
| 50 | Fadely, Dale Leon | Sedan, KS 67361 | Oil & Gas Operator | Dec 2009 |
| 51 | Fadem Oil Company | Tulsa, OK 74135 | Oil Operator | Jan 1996 |
| 52 | Fae II Operating LLC | Houston, TX 77079 | Oil & Gas Operator | Sep 2025 |
| 53 | Fagadau Energy Corporation | Dallas, TX 75206 | Oil & Gas Operator | Apr 2006 |
| 54 | Fagan Engineering | Shawnee, OK 74801-3021 | Oil & Gas Operator | Oct 1994 |
| 55 | Fahey Oil & Gas | | Oil & Gas Operator | Jul 2021 |
| 56 | Fahey, John R | | Oil Operator | Dec 2024 |
| 57 | Fahrenheit Petroleum Co Inc | | Oil & Gas Operator | Mar 2015 |
| 58 | Fail W T Inc | | Oil & Gas Operator | Mar 2015 |
| 59 | Fair Banks Enterprises | Chanute, KS 66720 | Oil Operator | Mar 2013 |
| 60 | Fair Energies Inc | | Oil Operator | Aug 2025 |
| 61 | Fair Oil Company | Tyler, TX 75710 | Oil & Gas Operator | Dec 2000 |
| 62 | Fair Oil, LC | Tyler, TX 75710 | Oil & Gas Operator | Oct 2001 |
| 63 | Fair Oil, LTD. | Tyler, TX 75710 | Oil & Gas Operator | Dec 2025 |
| 64 | Fair Operating, Inc. | Boerne, TX 78015 | Oil & Gas Operator | Dec 2025 |
| 65 | Fair Seas Enterp | | Oil & Gas Operator | Jun 1988 |
| 66 | Fairchild Explor | | Oil & Gas Operator | Apr 1995 |
| 67 | Fairchild Oil Corporation | Edmond, OK 73013 | Oil & Gas Operator | Oct 1994 |
| 68 | Fairchild Well Service Inc | Ponca City, OK 74602-0470 | Oil & Gas Operator | Jun 2006 |
| 69 | Fairchild, Bob | Kingman, KS 67068 | Oil Operator | Jan 2001 |
| 70 | Fairfield Energy Corp. | Dallas, TX 75205 | Oil & Gas Operator | Dec 2025 |
| 71 | Fairfield Oil & Gas Corp | Edmond, OK 73083 | Oil & Gas Operator | Nov 2021 |
| 72 | Fairman Corp | Du Bois, PA 15801-0288 | Oil & Gas Operator | Dec 2024 |
| 73 | Fairman Drilling Co | Du Bois, PA 15801-0288 | Oil & Gas Operator | Dec 2002 |
| 74 | Fairman Oil & Gas Co Inc | Oil City, PA 16301 | Oil & Gas Operator | Dec 1991 |
| 75 | Fairview Producing Corp. | | Oil Operator | Jul 2001 |
| 76 | Fairview Production Co LLC | Davis, OK 73030 | Oil & Gas Operator | Sep 2025 |
| 77 | Fairway Links Energy, Inc. | Tulsa, OK 74114 | Oil & Gas Operator | Aug 2016 |
| 78 | Fairway Operating, Inc. | Lake Jackson, TX 77566 | Oil & Gas Operator | Dec 2025 |
| 79 | Fairway Petroleu | | Oil & Gas Operator | Dec 1994 |
| 80 | Fairway Petroleum Inc | Stafford, TX 77497 | Oil & Gas Operator | Nov 2001 |
| 81 | Fairway Resources Op III, LLC | Southlake, TX 76092 | Oil & Gas Operator | Dec 2025 |
| 82 | Fairway Resources Operating III LLC | Houston, TX 77002-2728 | Oil & Gas Operator | Aug 2025 |
| 83 | Fairway Resources Operating, LLC | Southlake, TX 76092 | Oil & Gas Operator | Aug 2022 |
| 84 | Fairway Resources, Inc. | Jamestown, NY 14701 | Oil & Gas Operator | Dec 2024 |
| 85 | Fairways Exploration & Production, LLC | Houston, TX 77057 | Oil & Gas Operator | Oct 2025 |
| 86 | Fairways Offshore Expl Inc | Houston, TX 77040 | Oil & Gas Operator | Mar 2016 |
| 87 | Fairways Spec. Sales & Serv Inc | Houston, TX 77040 | Oil & Gas Operator | Sep 2004 |
| 88 | Faith Energy Exploration, Inc. | Ennis, TX 75119 | Oil & Gas Operator | Mar 2019 |
| 89 | Faith Energy, L.L.C. | | Oil & Gas Operator | Jan 2025 |
| 90 | Faith Oil Of Hosston | | Oil Operator | Feb 1996 |
| 91 | Faith Partners I | | Oil Operator | Feb 1989 |
| 92 | Faith Petroleum, Inc. | Arkansas City, KS 67005 | Oil & Gas Operator | Jun 2025 |
| 93 | Faith Production LLC | Holdenville, OK 74848 | Oil & Gas Operator | Sep 2025 |
| 94 | Faith Trading, LLC | Lovington, NM 88260 | Oil Operator | Oct 2025 |
| 95 | Falco S & D, Inc. | Shreveport, LA 71107 | Oil & Gas Operator | Apr 1998 |
| 96 | Falcon Bay Energy, L.L.C | Midland, TX 79701 | Gas Operator | Jan 2005 |
| 97 | Falcon Bay Operations, LLC | Midland, TX 79701 | Oil & Gas Operator | Oct 2007 |
| 98 | Falcon Creek Resources, Inc. | Tulsa, OK 74137 | Oil & Gas Operator | Apr 2001 |
| 99 | Falcon Energy Co | | Oil Operator | Apr 1992 |
| 100 | Falcon Energy LLC | Fruita, CO 81521 | Oil & Gas Operator | Nov 2025 |