| 10001 | Fagan Engineering | Shawnee, OK 74801-3021 | Oil & Gas Operator | Oct 1994 |
| 10002 | Fahey Oil & Gas | | Oil & Gas Operator | Jul 2021 |
| 10003 | Fahey, John R | | Oil Operator | Dec 2024 |
| 10004 | Fahrenheit Petroleum Co Inc | | Oil & Gas Operator | Mar 2015 |
| 10005 | Fail W T Inc | | Oil & Gas Operator | Mar 2015 |
| 10006 | Fair Banks Enterprises | Chanute, KS 66720 | Oil Operator | Mar 2013 |
| 10007 | Fair Energies Inc | | Oil Operator | Oct 2024 |
| 10008 | Fair Oil Company | Tyler, TX 75710 | Oil & Gas Operator | Dec 2000 |
| 10009 | Fair Oil, LC | Tyler, TX 75710 | Oil & Gas Operator | Oct 2001 |
| 10010 | Fair Oil, LTD. | Tyler, TX 75710 | Oil & Gas Operator | May 2025 |
| 10011 | Fair Operating, Inc. | Boerne, TX 78015 | Oil & Gas Operator | May 2025 |
| 10012 | Fair Seas Enterp | | Oil & Gas Operator | Jun 1988 |
| 10013 | Fairchild Explor | | Oil & Gas Operator | Apr 1995 |
| 10014 | Fairchild Oil Corporation | Edmond, OK 73013 | Oil & Gas Operator | Oct 1994 |
| 10015 | Fairchild Well Service Inc | Ponca City, OK 74602-0470 | Oil & Gas Operator | Jun 2006 |
| 10016 | Fairchild, Bob | Kingman, KS 67068 | Oil Operator | Jan 2001 |
| 10017 | Fairfield Energy Corp. | Dallas, TX 75205 | Oil & Gas Operator | May 2025 |
| 10018 | Fairfield Oil & Gas Corp | Edmond, OK 73083 | Oil & Gas Operator | Nov 2021 |
| 10019 | Fairman Corp | Du Bois, PA 15801-0288 | Oil & Gas Operator | Dec 2024 |
| 10020 | Fairman Drilling Co | Du Bois, PA 15801-0288 | Oil & Gas Operator | Dec 2002 |
| 10021 | Fairman Oil & Gas Co Inc | Oil City, PA 16301 | Oil & Gas Operator | Dec 1991 |
| 10022 | Fairview Producing Corp. | | Oil Operator | Jul 2001 |
| 10023 | Fairview Production Co LLC | Davis, OK 73030 | Oil & Gas Operator | Feb 2025 |
| 10024 | Fairway Links Energy, Inc. | Tulsa, OK 74114 | Oil & Gas Operator | Aug 2016 |
| 10025 | Fairway Operating, Inc. | Lake Jackson, TX 77566 | Oil & Gas Operator | May 2025 |
| 10026 | Fairway Petroleu | | Oil & Gas Operator | Dec 1994 |
| 10027 | Fairway Petroleum, Inc. | Stafford, TX 77497 | Oil & Gas Operator | Nov 2001 |
| 10028 | Fairway Resources Op III, LLC | Southlake, TX 76092 | Oil & Gas Operator | May 2025 |
| 10029 | Fairway Resources Operating III LLC | Houston, TX 77002-2728 | Oil & Gas Operator | Feb 2025 |
| 10030 | Fairway Resources Operating, LLC | Southlake, TX 76092 | Oil & Gas Operator | Aug 2022 |
| 10031 | Fairway Resources, Inc. | Jamestown, NY 14701 | Oil & Gas Operator | Dec 2023 |
| 10032 | Fairways Exploration & Production, LLC | Houston, TX 77057 | Oil & Gas Operator | Apr 2025 |
| 10033 | Fairways Offshore Expl Inc | Houston, TX 77040 | Oil & Gas Operator | Mar 2016 |
| 10034 | Fairways Spec. Sales & Serv Inc | Houston, TX 77040 | Oil & Gas Operator | Sep 2004 |
| 10035 | Faith Energy Exploration, Inc. | Ennis, TX 75119 | Oil & Gas Operator | Mar 2019 |
| 10036 | Faith Energy, L.L.C. | | Oil & Gas Operator | Jan 2025 |
| 10037 | Faith Oil Of Hosston | | Oil Operator | Feb 1996 |
| 10038 | Faith Partners I | | Oil Operator | Feb 1989 |
| 10039 | Faith Petroleum, Inc. | Arkansas City, KS 67005 | Oil & Gas Operator | Jan 2025 |
| 10040 | Faith Production LLC | Holdenville, OK 74848 | Oil & Gas Operator | Feb 2025 |
| 10041 | Faith Trading, LLC | Lovington, NM 88260 | Oil Operator | Apr 2025 |
| 10042 | Falco S & D, Inc. | Shreveport, LA 71107 | Oil & Gas Operator | Apr 1998 |
| 10043 | Falcon Bay Energy, L.L.C | Midland, TX 79701 | Gas Operator | Jan 2005 |
| 10044 | Falcon Bay Operations, LLC | Midland, TX 79701 | Oil & Gas Operator | Oct 2007 |
| 10045 | Falcon Creek Resources, Inc. | Tulsa, OK 74137 | Oil & Gas Operator | Apr 2001 |
| 10046 | Falcon Energy Co | | Oil Operator | Apr 1992 |
| 10047 | Falcon Energy LLC | Fruita, CO 81521 | Oil & Gas Operator | Sep 2011 |
| 10048 | Falcon Engineering Company, Inc. | Big Rapids, MI 493070818 | Oil & Gas Operator | Jul 2001 |
| 10049 | Falcon Explorati | | Oil & Gas Operator | Apr 1995 |
| 10050 | Falcon Exploration | | Oil Operator | Dec 1994 |
| 10051 | Falcon Exploration, Inc. | Wichita, KS 67202 | Oil & Gas Operator | Jan 2025 |
| 10052 | Falcon Flight, Inc. | Sherman, TX 75090 | Oil & Gas Operator | Apr 1995 |
| 10053 | Falcon Gas Storage Co., Inc. | Houston, TX 77057 | Oil & Gas Operator | Feb 2007 |
| 10054 | Falcon Minerals, LTD. | Houston, TX 77057 | Oil & Gas Operator | May 2010 |
| 10055 | Falcon Oil & Gas Company, Inc. | Houston, TX 77002 | Oil & Gas Operator | Nov 2022 |
| 10056 | Falcon Oil Properties LLP | Bristow, OK 74010 | Oil Operator | Feb 2025 |
| 10057 | Falcon Operating Company | Wichita Falls, TX 76302 | Gas Operator | Jan 2000 |
| 10058 | Falcon Production Co. | Floresville, TX 78114 | Oil & Gas Operator | May 2025 |
| 10059 | Falcon Production LLC | Austin, TX 78715 | Oil & Gas Operator | May 2025 |
| 10060 | Falcon Resources, Inc. | Kilgore, TX 75663 | Oil & Gas Operator | Jul 2021 |
| 10061 | Falcon Seaboard Oil & Gas LP | Farmington, NM 87499 | Gas Operator | May 1998 |
| 10062 | Falcon-Challenge Oil & Gas Co | Houston, TX 77056 | Oil & Gas Operator | Mar 1993 |
| 10063 | Falconer Central School District | Falconer, NY 14733 | Gas Operator | Dec 2020 |
| 10064 | Falese Oil Co Inc | Mattoon, IL 61938-4122-4122 | Oil & Gas Operator | Dec 1997 |
| 10065 | Falkin, Richard T. | Hepler, KS 66746 | Oil Operator | Nov 2019 |
| 10066 | Falkner, Donald E. | Cassadaga, NY 14718 | Gas Operator | Dec 2023 |
| 10067 | Fallen Leaf Energy, LLC | Allen, TX 75013 | Oil Operator | May 2025 |
| 10068 | Fallen Timbers Energy LLC | Tulsa, OK 74105-8713 | Oil Operator | Feb 2021 |
| 10069 | Falls City Energy Corporation | Poth, TX 78147 | Oil & Gas Operator | May 2000 |
| 10070 | Falls Operating Company | Wichita Falls, TX 76301 | Oil & Gas Operator | May 2025 |
| 10071 | Falls Production Company | Wichita Falls, TX 76308 | Oil & Gas Operator | May 2025 |
| 10072 | Fambrough, Tim D. | San Angelo, TX 76905 | Oil & Gas Operator | Nov 2016 |
| 10073 | Famcor Oil, Inc. | Scottsdale, AZ 85260 | Oil & Gas Operator | Sep 2020 |
| 10074 | Family Oil Company | | Oil Operator | Jan 2025 |
| 10075 | Family Tree Corporation | Lakewood, CO 80228 | Oil & Gas Operator | Feb 2013 |
| 10076 | Family Trust B, The | San Angelo, TX 76904 | Oil & Gas Operator | May 2019 |
| 10077 | Fancher Oil Co. | | Oil & Gas Operator | Sep 1995 |
| 10078 | Fancher Oil Comp | | Oil & Gas Operator | Aug 1995 |
| 10079 | Fancher Oil LLC | Greenwood, CO 80111 | Oil & Gas Operator | Nov 2006 |
| 10080 | Fancher, Geo. H, Jr. | Denver, CO 80202 | Gas Operator | Mar 1996 |
| 10081 | Fanion Production Co. | San Antonio, TX 78212 | Oil & Gas Operator | Oct 1997 |
| 10082 | Fanshier, Roger | Seward, KS 67576 | Oil Operator | Oct 2008 |
| 10083 | Fantasy Oil & Gas Ventures, L.L.C. | | Oil Operator | Dec 2024 |
| 10084 | Fantome, LLC | | Oil Operator | Jan 2007 |
| 10085 | Faoc Operating LLC | Houston, TX 77057 | Oil Operator | Jun 2018 |
| 10086 | Far West Development, LLC | Oklahoma City, OK 73118 | Oil & Gas Operator | May 2025 |
| 10087 | Farabaugh Arthur R & John A | Loretto, PA 15940-8001 | Gas Operator | Dec 2015 |
| 10088 | Fargo Exploration Co. | Abilene, TX 79601 | Oil & Gas Operator | Dec 1995 |
| 10089 | Fargo Oil & Gas, LLC | Corpus Chrsti, TX 78415 | Oil & Gas Operator | May 2025 |
| 10090 | Farley Christopher D | Kellyville, OK 74039 | Oil & Gas Operator | Jul 2019 |
| 10091 | Farley, Thomas | Perry, NY 14530 | Gas Operator | Dec 2023 |
| 10092 | Farmer Dog Oil Co., A General Partnership | Humboldt, KS 66748 | Oil Operator | Jan 2025 |
| 10093 | Farmer Inc | | Oil Operator | Dec 2024 |
| 10094 | Farmer Operating, LLC | Olney, TX 76374 | Oil & Gas Operator | Dec 2019 |
| 10095 | Farmer, Hayden | Olney, TX 76374 | Oil & Gas Operator | Feb 1997 |
| 10096 | Farmer, John O., Inc. | Russell, KS 67665 | Oil & Gas Operator | Jan 2025 |
| 10097 | Farmer, Lewis & Hayden | Olney, TX 76374 | Oil & Gas Operator | Oct 2008 |
| 10098 | Farmers Energy Corporation | Tulsa, OK 74103-3525 | Oil & Gas Operator | Nov 2021 |
| 10099 | Farmers Of Tulsa Energy Corp. | Tulsa, OK 74103 | Oil & Gas Operator | Sep 1997 |
| 10100 | Farmers Royalty Pool | | Oil & Gas Operator | Jul 1992 |