| 1901 | WASHBURN 1-30 | Calhoun County, MI | Oil Property | May 2026 |
| 1902 | WASHBURN 4 | McKenzie County, ND | Oil & Gas Property | May 2026 |
| 1903 | WASHBURN J. C | Rusk County, TX | Oil & Gas Property | Apr 2026 |
| 1904 | WASHBURN RANCH 0 | La Salle County, TX | Oil & Gas Property | Apr 2026 |
| 1905 | WASHBURN, DANA MICHAEL WASHBURN | Ritchie County, WV | Oil & Gas Property | Dec 2021 |
| 1906 | WASHBURNE | Williams County, ND | Oil & Gas Property | May 2026 |
| 1907 | WASHBURNE 15-22 #7H | Williams County, ND | Oil & Gas Property | May 2026 |
| 1908 | WASHES PL | Adams County, MS | Oil & Gas Property | Nov 1992 |
| 1909 | WASHINGTON | Cattaraugus County, NY | Oil & Gas Property | Dec 2025 |
| 1910 | WASHINGTON | Montague County, TX | Oil & Gas Property | Apr 2026 |
| 1911 | WASHINGTON | Reagan County, TX | Oil & Gas Property | Apr 2026 |
| 1912 | WASHINGTON | Martin County, TX | Oil & Gas Property | Apr 2026 |
| 1913 | WASHINGTON | Hughes County, OK | Oil & Gas Property | Apr 2026 |
| 1914 | WASHINGTON | Stephens County, OK | Oil Property | Jan 2026 |
| 1915 | WASHINGTON | Claiborne Parish, LA | Oil & Gas Property | Nov 2024 |
| 1916 | WASHINGTON | Gonzales County, TX | Oil & Gas Property | Apr 2026 |
| 1917 | WASHINGTON | Creek County, OK | Oil Property | Nov 1998 |
| 1918 | WASHINGTON 3 | Eddy County, NM | Oil & Gas Property | May 2026 |
| 1919 | WASHINGTON E | Harrison County, TX | Oil & Gas Property | Apr 2026 |
| 1920 | WASHINGTON E.W. HEIRS GAS UNIT 1 | Harrison County, TX | Oil & Gas Property | Apr 2026 |
| 1921 | WASHINGTON PARK W | Warren County, PA | Oil & Gas Property | Dec 2025 |
| 1922 | WASHINGTON R | Washington County, OK | Oil Property | Jul 2024 |
| 1923 | WASHINGTON ROYALTY | Washington County, OK | Oil Property | Apr 2026 |
| 1924 | WASHINGTON-M | Howard County, TX | Oil & Gas Property | Apr 2026 |
| 1925 | WASHITA | Hemphill County, TX | Oil & Gas Property | May 2021 |
| 1926 | WASHITA | Hemphill County, TX | Oil & Gas Property | Apr 2026 |
| 1927 | WASHITA RIVER | Roger Mills County, OK | Oil & Gas Property | Apr 2026 |
| 1928 | WASHITA RIVER | Hemphill County, TX | Oil & Gas Property | Apr 2026 |
| 1929 | WASIL | Fayette County, PA | Gas Property | Dec 2025 |
| 1930 | WASINGER | Ellis County, KS | Oil Property | Mar 2026 |
| 1931 | WASINGER | Scott County, KS | Oil & Gas Property | Feb 2026 |
| 1932 | WASINGER | Ellis County, KS | Oil Property | Mar 2026 |
| 1933 | WASINGER | Graham County, KS | Oil Property | Mar 2026 |
| 1934 | WASINGER | Ellis County, KS | Oil Property | Mar 2026 |
| 1935 | WASINGER 1 | Ellis County, KS | Oil Property | Dec 2025 |
| 1936 | WASKOM BEARDEN SAND UNIT | Harrison County, TX | Oil & Gas Property | Apr 2026 |
| 1937 | WASKOM UNIT | Harrison County, TX | Oil & Gas Property | Mar 2026 |
| 1938 | WASKOM, ABNEY UNIT | Harrison County, TX | Oil & Gas Property | Mar 2026 |
| 1939 | WASKOM-SMACKOVER UNIT | Harrison County, TX | Oil & Gas Property | Apr 2026 |
| 1940 | WASLAWSKI | Grand Traverse County, MI | Oil & Gas Property | May 2026 |
| 1941 | WASON | Portage County, OH | Oil & Gas Property | Dec 2024 |
| 1942 | WASP | Brazos County, TX | Oil & Gas Property | Mar 2026 |
| 1943 | WASP 150-94-11C-12H | McKenzie County, ND | Oil & Gas Property | May 2026 |
| 1944 | WASP 2 STATE | Chaves County, NM | Oil & Gas Property | May 2026 |
| 1945 | WASS | Ritchie County, WV | Oil & Gas Property | Dec 2021 |
| 1946 | WASS | Weld County, CO | Oil & Gas Property | Aug 2017 |
| 1947 | WASSELL | Lipscomb County, TX | Oil & Gas Property | Mar 2026 |
| 1948 | WASSEMILLER | Logan County, KS | Oil Property | Oct 2025 |
| 1949 | WASSEMILLER | Logan County, KS | Oil Property | Mar 2026 |
| 1950 | WASSERBURGER | Niobrara County, WY | Oil & Gas Property | Jan 2020 |
| 1951 | WASSERMAN | Sandusky County, OH | Oil Property | Dec 2025 |
| 1952 | WASSINK | Chautauqua County, NY | Gas Property | Dec 2025 |
| 1953 | WASSMANN | Belmont County, OH | Gas Property | Mar 2026 |
| 1954 | WASSON | Cattaraugus County, NY | Oil & Gas Property | Dec 2019 |
| 1955 | WASSON | Gaines County, TX | Oil & Gas Property | Apr 2026 |
| 1956 | WASSON | Le Flore County, OK | Gas Property | Apr 2026 |
| 1957 | WASSON BROTHERS FARM | Decatur County, KS | Oil Property | Apr 2015 |
| 1958 | WASSON ETAL UNIT | Chambers County, TX | Oil & Gas Property | Apr 2015 |
| 1959 | WASSON FEDERAL | Rio Arriba County, NM | Gas Property | Jul 2025 |
| 1960 | WASSON NORTH CLEARFORK UNIT | Yoakum County, TX | Oil & Gas Property | Apr 2026 |
| 1961 | WASSON ODC UNIT | Yoakum County, TX | Oil & Gas Property | Apr 2026 |
| 1962 | WASSON SOUTH CLEARFORK UNIT | Gaines County, TX | Oil & Gas Property | Apr 2026 |
| 1963 | WASTE CONNECTIONS 3 | Weld County, CO | Oil & Gas Property | Apr 2026 |
| 1964 | WASTE MANAGEMENT | Weld County, CO | Oil & Gas Property | Apr 2026 |
| 1965 | WASTE TRMT CORP W | Warren County, PA | Oil & Gas Property | Dec 2025 |
| 1966 | WASWO | McIntosh County, OK | Gas Property | Apr 2026 |
| 1967 | WASWO | Logan County, OK | Oil & Gas Property | Apr 2026 |
| 1968 | WASYL | Bradford County, PA | Gas Property | Dec 2025 |
| 1969 | WATASHE | Creek County, OK | Oil & Gas Property | Mar 2013 |
| 1970 | WATCH THIS 1208 | Canadian County, OK | Oil & Gas Property | Apr 2026 |
| 1971 | WATCHMAN 30-2 | Reeves County, TX | Oil & Gas Property | Apr 2026 |
| 1972 | WATCHMAN PEAK | McKenzie County, ND | Oil & Gas Property | May 2026 |
| 1973 | WATER 151-94-16DH-TF | McKenzie County, ND | Oil & Gas Property | May 2026 |
| 1974 | WATER FLOOD UNIT | Ouachita County, AR | Oil Property | Oct 2025 |
| 1975 | WATER IMPROVEMENT DIST | Wichita County, TX | Oil & Gas Property | Jun 2024 |
| 1976 | WATER IMPROVEMENT DISTRICT UNIT | Wichita County, TX | Oil & Gas Property | Apr 2026 |
| 1977 | WATER MOCCASIN 4-34-TFH | Mountrail County, ND | Oil & Gas Property | May 2026 |
| 1978 | WATER SUPPLY SLU | Lafayette County, AR | Oil & Gas Property | Jun 2026 |
| 1979 | WATERBOND | Mountrail County, ND | Oil & Gas Property | May 2026 |
| 1980 | WATERBOY | Washington County, PA | Gas Property | Apr 2026 |
| 1981 | WATERBOY 2 | Eddy County, NM | Oil & Gas Property | May 2026 |
| 1982 | WATERBUCK 2342-4TH | Campbell County, WY | Oil & Gas Property | May 2026 |
| 1983 | WATERFALL | Lincoln County, WY | Oil & Gas Property | Aug 2009 |
| 1984 | WATERFIELD | Hemphill County, TX | Oil & Gas Property | Apr 2026 |
| 1985 | WATERFIELD | Roberts County, TX | Oil & Gas Property | Apr 2026 |
| 1986 | WATERFIELD,JAMES B | Roberts County, TX | Oil & Gas Property | Apr 2026 |
| 1987 | WATERFLOOD UNIT | Austin County, TX | Oil & Gas Property | Apr 2026 |
| 1988 | WATERFRONT | Weld County, CO | Oil & Gas Property | Aug 2019 |
| 1989 | WATERHOUSE | Chautauqua County, NY | Gas Property | Dec 2025 |
| 1990 | WATERHOUSE | Hodgeman County, KS | Oil Property | Jan 2026 |
| 1991 | WATERMAN | Chautauqua County, NY | Gas Property | Dec 2025 |
| 1992 | WATERMAN | Harrison County, TX | Oil & Gas Property | Apr 2026 |
| 1993 | WATERMELON | Weld County, CO | Oil & Gas Property | May 2026 |
| 1994 | WATERMELON | Atascosa County, TX | Oil & Gas Property | Apr 2026 |
| 1995 | WATERMELON 0906 | Grady County, OK | Oil & Gas Property | Apr 2026 |
| 1996 | WATERMELON CS FED | Campbell County, WY | Gas Property | Feb 2012 |
| 1997 | WATERS | Shackelford County, TX | Oil & Gas Property | Apr 2025 |
| 1998 | WATERS | Coshocton County, OH | Oil & Gas Property | Dec 2024 |
| 1999 | WATERS | Stafford County, KS | Oil & Gas Property | Aug 2023 |
| 2000 | WATERS | Divide County, ND | Oil & Gas Property | May 2026 |