| 1901 | FERGUSON | Wise County, TX | Oil & Gas Property | Dec 2025 |
| 1902 | FERGUSON | Fallon County, MT | Oil & Gas Property | Dec 2025 |
| 1903 | FERGUSON | Morton County, KS | Gas Property | Jul 2010 |
| 1904 | FERGUSON A | Susquehanna County, PA | Gas Property | Jan 2026 |
| 1905 | FERGUSON B-037508 C-1 | Johnson County, WY | Oil & Gas Property | Jan 2026 |
| 1906 | FERGUSON BRO | Clinton County, KY | Oil Property | Jul 2023 |
| 1907 | FERGUSON BROTHERS | Clinton County, KY | Oil Property | Aug 2021 |
| 1908 | FERGUSON FOUNDATION | Johnson County, TX | Oil & Gas Property | Dec 2025 |
| 1909 | FERGUSON GAS UNIT | Limestone County, TX | Oil & Gas Property | Dec 2025 |
| 1910 | FERGUSON J. R. ESTATE | Freestone County, TX | Oil & Gas Property | Jul 2025 |
| 1911 | FERGUSON KEISLING | Bradford County, PA | Gas Property | Jan 2026 |
| 1912 | FERGUSON PRISON UNIT | Madison County, TX | Oil & Gas Property | Oct 2025 |
| 1913 | FERGUSON, D. B | Parker County, TX | Oil & Gas Property | Dec 2025 |
| 1914 | FERGUSON, J LEE | Pike County, KY | Gas Property | Apr 2013 |
| 1915 | FERGUSON-LOWREY (SA) A | Parker County, TX | Gas Property | Dec 2025 |
| 1916 | FERGUSON-MCKNIGHT | Dimmit County, TX | Oil & Gas Property | Dec 2025 |
| 1917 | FERGUSON-RIELAND 14-13 | Powder River County, MT | Oil & Gas Property | Jan 2026 |
| 1918 | FERIS, ROSE, ETAL TAYLOR H | Ritchie County, WV | Oil & Gas Property | Dec 2021 |
| 1919 | FERM | Crawford County, PA | Oil & Gas Property | Dec 2025 |
| 1920 | FERME FARMS | Weld County, CO | Oil & Gas Property | Oct 2022 |
| 1921 | FERN | Beckham County, OK | Gas Property | Mar 2020 |
| 1922 | FERN | Kearny County, KS | Gas Property | Sep 2025 |
| 1923 | FERN /30 | Woodward County, OK | Oil & Gas Property | Dec 2025 |
| 1924 | FERN 11 | Weld County, CO | Oil & Gas Property | Dec 2025 |
| 1925 | FERN FEIGHT | Haskell County, KS | Oil & Gas Property | Sep 2025 |
| 1926 | FERN HOPKINS | McClain County, OK | Oil Property | Aug 2025 |
| 1927 | FERN LAKE FISHING CLUB | Nacogdoches County, TX | Oil & Gas Property | Nov 2025 |
| 1928 | FERN MILLER WIKSTRAND | Weld County, CO | Oil & Gas Property | Dec 2025 |
| 1929 | FERN V. ROBINSON | Limestone County, TX | Oil & Gas Property | Dec 2025 |
| 1930 | FERNANDES | Winkler County, TX | Oil & Gas Property | Dec 2025 |
| 1931 | FERNANDES RANCH | Winkler County, TX | Oil & Gas Property | Mar 2020 |
| 1932 | FERNANDEZ | Zapata County, TX | Oil & Gas Property | Jul 2020 |
| 1933 | FERNANDEZ RICARDO | Medina County, TX | Oil & Gas Property | Dec 2025 |
| 1934 | FERNANDEZ UNIT | Atascosa County, TX | Oil & Gas Property | Dec 2025 |
| 1935 | FERNANDO CUELLAR | Zapata County, TX | Oil & Gas Property | Dec 2025 |
| 1936 | FERNANDO FEE | Los Angeles County, CA | Oil & Gas Property | Dec 2025 |
| 1937 | FERNANDO MUNOZ G | Zapata County, TX | Oil & Gas Property | Dec 2025 |
| 1938 | FERNDALE | Ventura County, CA | Oil & Gas Property | Dec 2025 |
| 1939 | FERNDALE CLUB | Camp County, TX | Oil Property | Oct 2025 |
| 1940 | FERNE | Kern County, CA | Oil & Gas Property | Dec 2025 |
| 1941 | FERNSTROM | Miami County, KS | Oil Property | Feb 1996 |
| 1942 | FERNVALE | Ventura County, CA | Oil & Gas Property | Sep 1998 |
| 1943 | FERNWOOD | Walthall County, MS | Oil & Gas Property | Jul 2006 |
| 1944 | FERNWOOD | Walthall County, MS | Oil & Gas Property | Jul 2022 |
| 1945 | FERNWOOD | Walthall County, MS | Oil & Gas Property | Nov 2011 |
| 1946 | FERNYHOUGH | Sheridan County, MT | Oil & Gas Property | May 2003 |
| 1947 | FEROS | Lavaca County, TX | Oil & Gas Property | Dec 2025 |
| 1948 | FERRARA | Trumbull County, OH | Oil & Gas Property | Dec 2025 |
| 1949 | FERRARINI | Duchesne County, UT | Oil & Gas Property | Jan 2026 |
| 1950 | FERRARO | Bradford County, PA | Gas Property | Jan 2026 |
| 1951 | FERRARO | Harrison County, OH | Gas Property | Dec 2013 |
| 1952 | FERREBEE | Doddridge County, WV | Oil & Gas Property | Dec 2021 |
| 1953 | FERREBEE BEA | Beaver County, PA | Gas Property | Jan 2026 |
| 1954 | FERREBEE, R | Doddridge County, WV | Oil & Gas Property | Jun 2021 |
| 1955 | FERREE | Butler County, PA | Gas Property | Jan 2026 |
| 1956 | FERREE A | Woodson County, KS | Oil Property | Aug 2025 |
| 1957 | FERREL | Runnels County, TX | Oil & Gas Property | Oct 2025 |
| 1958 | FERRELL | Roane County, WV | Oil & Gas Property | Dec 2021 |
| 1959 | FERRELL | Calhoun County, WV | Oil & Gas Property | Dec 2021 |
| 1960 | FERRELL | Dewey County, OK | Oil & Gas Property | Dec 2025 |
| 1961 | FERRELL | Franklin County, KS | Oil Property | Sep 2025 |
| 1962 | FERRELL | Atascosa County, TX | Oil & Gas Property | Feb 2022 |
| 1963 | FERRELL | Roane County, WV | Oil & Gas Property | Dec 2021 |
| 1964 | FERRELL | Harrison County, OH | Oil & Gas Property | Dec 2024 |
| 1965 | FERRELL | Dewey County, OK | Oil & Gas Property | Dec 2025 |
| 1966 | FERRELL | Caddo Parish, LA | Oil Property | Oct 2024 |
| 1967 | FERRELL | Live Oak County, TX | Oil & Gas Property | Dec 2025 |
| 1968 | FERRELL | Harper County, KS | Oil & Gas Property | Sep 2001 |
| 1969 | FERRELL | Eastland County, TX | Oil & Gas Property | Dec 2025 |
| 1970 | FERRELL | Ritchie County, WV | Oil & Gas Property | Jul 2021 |
| 1971 | FERRELL | Butler County, KS | Oil Property | Sep 2025 |
| 1972 | FERRELL | Jack County, TX | Oil & Gas Property | Nov 2025 |
| 1973 | FERRELL & HATCHER | Pike County, KY | Oil & Gas Property | Dec 2024 |
| 1974 | FERRELL & HATCHER | Pike County, KY | Gas Property | Dec 2024 |
| 1975 | FERRELL 1-17H | Alfalfa County, OK | Oil & Gas Property | Dec 2025 |
| 1976 | FERRELL A | Freestone County, TX | Oil & Gas Property | Dec 2025 |
| 1977 | FERRELL BROTHERS | Alfalfa County, OK | Oil & Gas Property | Apr 2003 |
| 1978 | FERRELL MRS. ISABEL R. A | Live Oak County, TX | Oil & Gas Property | Dec 2025 |
| 1979 | FERRELL, BUDDY | Johnson County, KY | Gas Property | Dec 2024 |
| 1980 | FERRELL, ISABEL R | Live Oak County, TX | Oil & Gas Property | Dec 2025 |
| 1981 | FERRELL, ROY E. ROY FERRELL | Ohio County, WV | Oil & Gas Property | Dec 2021 |
| 1982 | FERRELL-RICHARDS | Jack County, TX | Oil & Gas Property | Jul 2025 |
| 1983 | FERRERO | Santa Barbara County, CA | Oil & Gas Property | Jun 1989 |
| 1984 | FERRET 17-20-29 | Hughes County, OK | Oil & Gas Property | Dec 2025 |
| 1985 | FERRILL | Grayson County, TX | Oil & Gas Property | Dec 2025 |
| 1986 | FERRINI | Monterey County, CA | Oil & Gas Property | Dec 2025 |
| 1987 | FERRIS | Carbon County, WY | Oil & Gas Property | Nov 2024 |
| 1988 | FERRIS | Texas County, OK | Oil & Gas Property | Dec 2025 |
| 1989 | FERRIS | Mercer County, PA | Gas Property | Dec 2025 |
| 1990 | FERRIS-SALEM | Stafford County, KS | Oil Property | Aug 2025 |
| 1991 | FERRON | Emery County, UT | Gas Property | Jul 2024 |
| 1992 | FERRON | Emery County, UT | Oil & Gas Property | Jan 2026 |
| 1993 | FERRY SARAH E | Atascosa County, TX | Oil & Gas Property | Dec 2025 |
| 1994 | FERTIG | Kearny County, KS | Gas Property | Sep 2025 |
| 1995 | FERTIG | Pawnee County, KS | Oil Property | Aug 2025 |
| 1996 | FERTIG | Pawnee County, KS | Oil Property | Sep 2025 |
| 1997 | FERTIG & FROST | Warren County, PA | Oil & Gas Property | Dec 2025 |
| 1998 | FERTILE | Mountrail County, ND | Oil & Gas Property | Jan 2026 |
| 1999 | FERTSCH | Karnes County, TX | Oil & Gas Property | Dec 2025 |
| 2000 | FERVER | Warren County, PA | Oil & Gas Property | Dec 2025 |