| 43001 | FORT HAYS STATE | Seward County, KS | Oil Property | May 2008 |
| 43002 | FORT HILL FARMS | Fayette County, PA | Gas Property | Dec 2024 |
| 43003 | FORT KNOX 11-2 | Howard County, TX | Oil & Gas Property | Aug 2025 |
| 43004 | FORT MERRILL | Live Oak County, TX | Oil Property | Aug 2025 |
| 43005 | FORT PILLOW 54-4-13 1H | Reeves County, TX | Oil & Gas Property | Aug 2025 |
| 43006 | FORT RENO | Johnson County, WY | Oil & Gas Property | Aug 2025 |
| 43007 | FORT SAINT VRAIN | Weld County, CO | Oil & Gas Property | Apr 2020 |
| 43008 | FORT SILL | Comanche County, OK | Oil Property | Jul 2025 |
| 43009 | FORT ST VRAIN | Weld County, CO | Oil & Gas Property | Sep 2019 |
| 43010 | FORT STOCKTON | Pecos County, TX | Oil & Gas Property | Aug 2025 |
| 43011 | FORT STOCKTON-DIXEL RESOURCES | Pecos County, TX | Oil & Gas Property | Aug 2025 |
| 43012 | FORT TRINIDAD DEXTER UNIT | Houston County, TX | Oil & Gas Property | Aug 2025 |
| 43013 | FORT WORTH | Wichita County, TX | Oil Property | May 2025 |
| 43014 | FORT WORTH NAT | Dewitt County, TX | Oil & Gas Property | Aug 2022 |
| 43015 | FORTENBERRY | Dawson County, TX | Oil & Gas Property | Aug 2025 |
| 43016 | FORTENBERRY | Wise County, TX | Oil & Gas Property | Aug 2025 |
| 43017 | FORTENBERRY | Walthall County, MS | Oil & Gas Property | Dec 2011 |
| 43018 | FORTERRA | Otsego County, MI | Oil Property | Mar 1992 |
| 43019 | FORTHUN 2-1 | McKenzie County, ND | Oil & Gas Property | Aug 2025 |
| 43020 | FORTIER | Divide County, ND | Oil & Gas Property | Aug 2025 |
| 43021 | FORTIFICATION | Burke County, ND | Oil & Gas Property | Sep 2025 |
| 43022 | FORTIN | Park County, WY | Oil & Gas Property | Aug 2025 |
| 43023 | FORTIN | Decatur County, KS | Oil Property | Jun 2025 |
| 43024 | FORTNER | Stephens County, OK | Oil & Gas Property | Aug 2025 |
| 43025 | FORTNER | Montgomery County, KS | Gas Property | Jun 2025 |
| 43026 | FORTNER HATTIE ET AL | Guadalupe County, TX | Oil & Gas Property | May 2025 |
| 43027 | FORTNER, MARIE | Lawrence County, KY | Oil & Gas Property | Dec 2018 |
| 43028 | FORTNEY | Palo Pinto County, TX | Gas Property | Apr 2025 |
| 43029 | FORTRESS | Martin County, TX | Oil & Gas Property | Aug 2025 |
| 43030 | FORTRESS OF SOLITUDE 16-9-4 | Howard County, TX | Oil & Gas Property | Aug 2025 |
| 43031 | FORTRESS STATE UNIT | Culberson County, TX | Oil & Gas Property | Aug 2025 |
| 43032 | FORTSON | Leon County, TX | Oil & Gas Property | Sep 2016 |
| 43033 | FORTSON | Ward County, TX | Oil & Gas Property | Jul 2025 |
| 43034 | FORTSON | Limestone County, TX | Oil & Gas Property | Aug 2025 |
| 43035 | FORTSON | Red River Parish, LA | Oil & Gas Property | Dec 2024 |
| 43036 | FORTSON | Ochiltree County, TX | Oil & Gas Property | Aug 2025 |
| 43037 | FORTSON | Pecos County, TX | Oil & Gas Property | Aug 2025 |
| 43038 | FORTSON GAS UNIT | Ward County, TX | Oil & Gas Property | Aug 2025 |
| 43039 | FORTUNA | Andrews County, TX | Oil & Gas Property | Aug 2025 |
| 43040 | FORTUNA | Humboldt County, CA | Gas Property | Sep 2025 |
| 43041 | FORTUNA | Summit County, OH | Oil & Gas Property | Dec 2017 |
| 43042 | FORTUNE | Reeves County, TX | Oil & Gas Property | Aug 2025 |
| 43043 | FORTUNE | Major County, OK | Oil & Gas Property | Aug 2025 |
| 43044 | FORTUNE | Martin County, TX | Oil & Gas Property | Aug 2025 |
| 43045 | FORTUNE | Major County, OK | Oil & Gas Property | Jul 2025 |
| 43046 | FORTUNE 500 | Ector County, TX | Oil & Gas Property | Aug 2025 |
| 43047 | FORTY NINER RIDGE | Eddy County, NM | Oil & Gas Property | Aug 2025 |
| 43048 | FORTY NINER RIDGE UNIT COM 135H | Eddy County, NM | Oil & Gas Property | Aug 2025 |
| 43049 | FORWARD | Stevens County, KS | Gas Property | Jun 2025 |
| 43050 | FORWARD | Wichita County, TX | Oil & Gas Property | Jun 2025 |
| 43051 | FORWARD 'A' | Morton County, KS | Oil & Gas Property | Jun 2025 |
| 43052 | FORWOOD E | Susquehanna County, PA | Gas Property | Aug 2025 |
| 43053 | FORWOODSON | Latimer County, OK | Gas Property | Jul 2025 |
| 43054 | FOSBERG | Chautauqua County, NY | Oil & Gas Property | Dec 2024 |
| 43055 | FOSHEE | Nacogdoches County, TX | Oil & Gas Property | Aug 2025 |
| 43056 | FOSHEE 07-15 | Conway County, AR | Gas Property | Jul 2024 |
| 43057 | FOSHEE GAS UNIT | Nacogdoches County, TX | Oil & Gas Property | Sep 2019 |
| 43058 | FOSNAUGHT | Stark County, OH | Oil & Gas Property | Dec 2024 |
| 43059 | FOSNIGHT CS | Campbell County, WY | Gas Property | Jul 2015 |
| 43060 | FOSNOT | Marion County, KS | Oil & Gas Property | Jun 2025 |
| 43061 | FOSS | Erie County, NY | Gas Property | Dec 2024 |
| 43062 | FOSS | Weld County, CO | Oil & Gas Property | Apr 2021 |
| 43063 | FOSS | Erie County, NY | Gas Property | Dec 2024 |
| 43064 | FOSS 24-11TFH | Dunn County, ND | Oil & Gas Property | Sep 2025 |
| 43065 | FOSS FAMILY TRUST 15-23H | Williams County, ND | Oil & Gas Property | Aug 2025 |
| 43066 | FOSS RANCH 1-34H | Richland County, MT | Oil & Gas Property | Aug 2025 |
| 43067 | FOSS USX AA | Weld County, CO | Oil & Gas Property | Mar 2017 |
| 43068 | FOSSA 149-93-31D-30H-LL | Dunn County, ND | Oil & Gas Property | Aug 2025 |
| 43069 | FOSSET GULCH | Archuleta County, CO | Gas Property | Aug 2025 |
| 43070 | FOSSETT 1 | Caddo County, OK | Oil & Gas Property | Jul 2025 |
| 43071 | FOSSIL | Natrona County, WY | Oil & Gas Property | Mar 2019 |
| 43072 | FOSSIL | Leon County, TX | Oil & Gas Property | Aug 2025 |
| 43073 | FOSSIL BELIN GAS UNIT | Leon County, TX | Oil & Gas Property | Aug 2025 |
| 43074 | FOSSIL CREEK RWF | Garfield County, CO | Oil & Gas Property | Aug 2025 |
| 43075 | FOSSIL DONELSON GAS UNIT #1 | Leon County, TX | Oil & Gas Property | Aug 2025 |
| 43076 | FOSSIL FEDERAL | San Miguel County, CO | Oil & Gas Property | Dec 2024 |
| 43077 | FOSSIL HILL | Tarrant County, TX | Oil & Gas Property | Aug 2025 |
| 43078 | FOSSIL JOHN PARKER | Robertson County, TX | Oil & Gas Property | Aug 2025 |
| 43079 | FOSSIL LONE OAK RANCH | Leon County, TX | Oil & Gas Property | Aug 2025 |
| 43080 | FOSSIL RIDGE | Tarrant County, TX | Gas Property | Aug 2025 |
| 43081 | FOSSIL STREATER GAS UNIT NO. 1 1 | Leon County, TX | Oil & Gas Property | Aug 2025 |
| 43082 | FOSSIL WILDMAN | Leon County, TX | Oil & Gas Property | Aug 2025 |
| 43083 | FOSSUM | McKenzie County, ND | Oil & Gas Property | Aug 2025 |
| 43084 | FOSSUM | Bottineau County, ND | Oil & Gas Property | Aug 2025 |
| 43085 | FOSTER | Pawnee County, OK | Oil & Gas Property | Jul 2025 |
| 43086 | FOSTER | San Juan County, NM | Gas Property | Aug 2025 |
| 43087 | FOSTER | Kearny County, KS | Oil & Gas Property | Jun 2025 |
| 43088 | FOSTER | Noble County, OK | Gas Property | Jul 2025 |
| 43089 | FOSTER | Hughes County, OK | Oil & Gas Property | May 2025 |
| 43090 | FOSTER | Ector County, TX | Oil & Gas Property | Aug 2025 |
| 43091 | FOSTER | San Juan County, NM | Gas Property | Sep 2025 |
| 43092 | FOSTER | Garvin County, OK | Oil & Gas Property | Jun 2025 |
| 43093 | FOSTER | Los Angeles County, CA | Oil & Gas Property | Sep 2025 |
| 43094 | FOSTER | Sterling County, TX | Oil & Gas Property | Jul 2024 |
| 43095 | FOSTER | Lipscomb County, TX | Oil & Gas Property | Aug 2025 |
| 43096 | FOSTER | Harrison County, TX | Oil & Gas Property | Aug 2025 |
| 43097 | FOSTER | Sterling County, TX | Oil & Gas Property | Aug 2025 |
| 43098 | FOSTER | Medina County, TX | Oil & Gas Property | Aug 2025 |
| 43099 | FOSTER | Latimer County, OK | Gas Property | Jul 2025 |
| 43100 | FOSTER | Upshur County, WV | Gas Property | Dec 2021 |