| 43101 | FORSBERG | Johnson County, TX | Gas Property | Dec 2025 |
| 43102 | FORSGREN | Le Flore County, OK | Gas Property | Jun 2024 |
| 43103 | FORSHAGE ERWIN | Guadalupe County, TX | Oil & Gas Property | Nov 2025 |
| 43104 | FORSHAGE-HOWELL UNIT | Karnes County, TX | Oil & Gas Property | Dec 2025 |
| 43105 | FORSHEE | Garfield County, CO | Oil & Gas Property | Dec 2025 |
| 43106 | FORSHEY | Washington County, OH | Oil & Gas Property | Dec 2025 |
| 43107 | FORSLING | Kimball County, NE | Oil & Gas Property | Dec 2024 |
| 43108 | FORSMAN USA 44-22H | McKenzie County, ND | Oil & Gas Property | Jan 2026 |
| 43109 | FORST GAS UNIT | Kearny County, KS | Gas Property | Sep 2025 |
| 43110 | FORSTER | Pittsburg County, OK | Gas Property | Dec 2017 |
| 43111 | FORSTON BURTON KIRKLAND UNIT | Johnson County, TX | Oil & Gas Property | Dec 2025 |
| 43112 | FORSYTH | Barber County, KS | Oil & Gas Property | Sep 2025 |
| 43113 | FORSYTH/ABBADINI | Fayette County, PA | Gas Property | Dec 2025 |
| 43114 | FORSYTHE | Alfalfa County, OK | Oil & Gas Property | Jan 2026 |
| 43115 | FORSYTHE | Perry County, OH | Oil & Gas Property | Dec 2022 |
| 43116 | FORSYTHE | Perry County, OH | Oil & Gas Property | Dec 2024 |
| 43117 | FORSYTHE | Allegany County, NY | Oil & Gas Property | Dec 2024 |
| 43118 | FORSYTHE | Perry County, OH | Oil & Gas Property | Dec 2021 |
| 43119 | FORSYTHE PRYOR | Wise County, TX | Oil & Gas Property | Nov 2025 |
| 43120 | FORSYTHE SPEER | Wise County, TX | Oil & Gas Property | Nov 2025 |
| 43121 | FORSYTHE, THOMAS | Pike County, KY | Gas Property | Dec 2019 |
| 43122 | FORT | Major County, OK | Oil & Gas Property | Dec 2025 |
| 43123 | FORT | Eddy County, NM | Oil & Gas Property | Feb 2020 |
| 43124 | FORT | Sebastian County, AR | Gas Property | Jun 2024 |
| 43125 | FORT 'A' | Grant County, KS | Gas Property | Sep 2025 |
| 43126 | FORT APACHE | Burleson County, TX | Oil & Gas Property | Nov 2025 |
| 43127 | FORT BERTHOLD | McKenzie County, ND | Oil & Gas Property | Jan 2026 |
| 43128 | FORT BERTHOLD 14 | Dunn County, ND | Oil & Gas Property | Jan 2026 |
| 43129 | FORT BERTHOLD 148-9 | Dunn County, ND | Oil & Gas Property | Jan 2026 |
| 43130 | FORT BERTHOLD 15 | McKenzie County, ND | Oil & Gas Property | Jan 2026 |
| 43131 | FORT BERTHOLD 152-9 | McKenzie County, ND | Oil & Gas Property | Jan 2026 |
| 43132 | FORT BERTHOLD 152-93 | McKenzie County, ND | Oil & Gas Property | Jan 2026 |
| 43133 | FORT CARRIE | Panola County, TX | Oil & Gas Property | Dec 2025 |
| 43134 | FORT CHADBOURNE ODOM LIME UNIT | Coke County, TX | Oil & Gas Property | Mar 2020 |
| 43135 | FORT CHAFFEE | Sebastian County, AR | Gas Property | Jun 2024 |
| 43136 | FORT CHAFFEE | Sebastian County, AR | Gas Property | Jun 2024 |
| 43137 | FORT CHAFFEE FEDERAL | Sebastian County, AR | Gas Property | May 2024 |
| 43138 | FORT GILBERT | Richland County, MT | Oil & Gas Property | Jan 2026 |
| 43139 | FORT GRIFFIN | Shackelford County, TX | Oil & Gas Property | Dec 2025 |
| 43140 | FORT HAYS STATE | Seward County, KS | Oil Property | May 2008 |
| 43141 | FORT HILL FARMS | Fayette County, PA | Gas Property | Dec 2025 |
| 43142 | FORT KNOX 11-2 | Howard County, TX | Oil & Gas Property | Dec 2025 |
| 43143 | FORT MERRILL | Live Oak County, TX | Oil Property | Nov 2025 |
| 43144 | FORT PILLOW 54-4-13 1H | Reeves County, TX | Oil & Gas Property | Dec 2025 |
| 43145 | FORT SAINT VRAIN | Weld County, CO | Oil & Gas Property | Apr 2020 |
| 43146 | FORT SILL | Comanche County, OK | Oil Property | Dec 2025 |
| 43147 | FORT ST VRAIN | Weld County, CO | Oil & Gas Property | Sep 2019 |
| 43148 | FORT STOCKTON | Pecos County, TX | Oil & Gas Property | Dec 2025 |
| 43149 | FORT STOCKTON-DIXEL RESOURCES | Pecos County, TX | Oil & Gas Property | Dec 2025 |
| 43150 | FORT TRINIDAD DEXTER UNIT | Houston County, TX | Oil & Gas Property | Dec 2025 |
| 43151 | FORT WORTH | Wichita County, TX | Oil Property | May 2025 |
| 43152 | FORT WORTH 1 | Duchesne County, UT | Oil & Gas Property | Jan 2026 |
| 43153 | FORT WORTH NAT | Dewitt County, TX | Oil & Gas Property | Aug 2022 |
| 43154 | FORTENBERRY | Dawson County, TX | Oil & Gas Property | Nov 2025 |
| 43155 | FORTENBERRY | Wise County, TX | Oil & Gas Property | Dec 2025 |
| 43156 | FORTENBERRY | Walthall County, MS | Oil & Gas Property | Dec 2011 |
| 43157 | FORTERRA | Otsego County, MI | Oil Property | Mar 1992 |
| 43158 | FORTIER | Divide County, ND | Oil & Gas Property | Jan 2026 |
| 43159 | FORTIFICATION | Burke County, ND | Oil & Gas Property | Jan 2026 |
| 43160 | FORTIN | Park County, WY | Oil & Gas Property | Jan 2026 |
| 43161 | FORTNER | Stephens County, OK | Oil & Gas Property | Jan 2026 |
| 43162 | FORTNER | Montgomery County, KS | Gas Property | Sep 2025 |
| 43163 | FORTNER HATTIE ET AL | Guadalupe County, TX | Oil & Gas Property | Dec 2025 |
| 43164 | FORTNER, MARIE | Lawrence County, KY | Oil & Gas Property | Dec 2024 |
| 43165 | FORTNEY | Palo Pinto County, TX | Gas Property | Apr 2025 |
| 43166 | FORTRESS | Martin County, TX | Oil & Gas Property | Dec 2025 |
| 43167 | FORTRESS 1-25 | Alfalfa County, OK | Oil & Gas Property | Dec 2025 |
| 43168 | FORTRESS OF SOLITUDE 16-9-4 | Howard County, TX | Oil & Gas Property | Dec 2025 |
| 43169 | FORTRESS STATE UNIT | Culberson County, TX | Oil & Gas Property | Dec 2025 |
| 43170 | FORTSON | Leon County, TX | Oil & Gas Property | Sep 2016 |
| 43171 | FORTSON | Ward County, TX | Oil & Gas Property | Nov 2025 |
| 43172 | FORTSON | Limestone County, TX | Oil & Gas Property | Dec 2025 |
| 43173 | FORTSON | Red River Parish, LA | Oil & Gas Property | Dec 2024 |
| 43174 | FORTSON | Ochiltree County, TX | Oil & Gas Property | Dec 2025 |
| 43175 | FORTSON | Pecos County, TX | Oil & Gas Property | Nov 2025 |
| 43176 | FORTSON GAS UNIT | Ward County, TX | Oil & Gas Property | Dec 2025 |
| 43177 | FORTUNA | Andrews County, TX | Oil & Gas Property | Dec 2025 |
| 43178 | FORTUNA | Humboldt County, CA | Gas Property | Dec 2025 |
| 43179 | FORTUNA | Summit County, OH | Oil & Gas Property | Dec 2017 |
| 43180 | FORTUNE | Reeves County, TX | Oil & Gas Property | Oct 2025 |
| 43181 | FORTUNE | Major County, OK | Oil & Gas Property | Jan 2026 |
| 43182 | FORTUNE | Martin County, TX | Oil & Gas Property | Dec 2025 |
| 43183 | FORTUNE | Major County, OK | Oil & Gas Property | Dec 2025 |
| 43184 | FORTUNE 500 | Ector County, TX | Oil & Gas Property | Dec 2025 |
| 43185 | FORTY NINER RIDGE | Eddy County, NM | Oil & Gas Property | Jan 2026 |
| 43186 | FORTY NINER RIDGE UNIT COM 135H | Eddy County, NM | Oil & Gas Property | Jan 2026 |
| 43187 | FORWARD | Stevens County, KS | Gas Property | Sep 2025 |
| 43188 | FORWARD | Wichita County, TX | Oil & Gas Property | Dec 2025 |
| 43189 | FORWARD 'A' | Morton County, KS | Oil & Gas Property | Sep 2025 |
| 43190 | FORWOOD E | Susquehanna County, PA | Gas Property | Jan 2026 |
| 43191 | FORWOODSON | Latimer County, OK | Gas Property | Dec 2025 |
| 43192 | FOSBERG | Chautauqua County, NY | Oil & Gas Property | Dec 2024 |
| 43193 | FOSHEE | Nacogdoches County, TX | Oil & Gas Property | Dec 2025 |
| 43194 | FOSHEE 07-15 | Conway County, AR | Gas Property | Jul 2024 |
| 43195 | FOSHEE GAS UNIT | Nacogdoches County, TX | Oil & Gas Property | Sep 2019 |
| 43196 | FOSNAUGHT | Stark County, OH | Oil & Gas Property | Dec 2024 |
| 43197 | FOSNIGHT CS | Campbell County, WY | Gas Property | Jul 2015 |
| 43198 | FOSNOT | Marion County, KS | Oil & Gas Property | Aug 2025 |
| 43199 | FOSS | Erie County, NY | Gas Property | Dec 2024 |
| 43200 | FOSS | Weld County, CO | Oil & Gas Property | Apr 2021 |