| 1901 | STATE | Sheridan County, MT | Oil & Gas Property | Apr 2016 |
| 1902 | STATE | Blaine County, MT | Gas Property | Jan 2026 |
| 1903 | STATE | Rosebud County, MT | Oil Property | Nov 2025 |
| 1904 | STATE | Hill County, MT | Gas Property | Jan 2026 |
| 1905 | STATE | Glacier County, MT | Oil & Gas Property | May 1992 |
| 1906 | STATE | Petroleum County, MT | Oil Property | Jan 2026 |
| 1907 | STATE | Sheridan County, MT | Oil & Gas Property | Jan 2026 |
| 1908 | STATE | Toole County, MT | Gas Property | Jan 2026 |
| 1909 | STATE | Phillips County, MT | Gas Property | Jan 2026 |
| 1910 | STATE | Toole County, MT | Oil & Gas Property | Jan 2026 |
| 1911 | STATE | Glacier County, MT | Gas Property | Jan 2026 |
| 1912 | STATE | Chouteau County, MT | Gas Property | Jan 2026 |
| 1913 | STATE | Chouteau County, MT | Gas Property | Jan 2026 |
| 1914 | STATE | Toole County, MT | Oil Property | Nov 2025 |
| 1915 | STATE | Fallon County, MT | Oil & Gas Property | Jan 2026 |
| 1916 | STATE | Chouteau County, MT | Gas Property | Jan 2026 |
| 1917 | STATE | Fallon County, MT | Gas Property | Jan 2026 |
| 1918 | STATE | Glacier County, MT | Gas Property | Dec 2025 |
| 1919 | STATE | Phillips County, MT | Gas Property | Jan 2026 |
| 1920 | STATE | Liberty County, MT | Gas Property | Aug 2015 |
| 1921 | STATE | Big Horn County, MT | Gas Property | Jun 2013 |
| 1922 | STATE | Musselshell County, MT | Oil Property | Nov 2025 |
| 1923 | STATE | Toole County, MT | Oil & Gas Property | Jan 2026 |
| 1924 | STATE | Liberty County, MT | Gas Property | Nov 2020 |
| 1925 | STATE | Toole County, MT | Oil & Gas Property | Dec 2025 |
| 1926 | STATE | Pondera County, MT | Oil Property | Oct 2024 |
| 1927 | STATE | Pondera County, MT | Gas Property | Oct 2023 |
| 1928 | STATE | Richland County, MT | Oil & Gas Property | Dec 1998 |
| 1929 | STATE | Liberty County, MT | Gas Property | Jan 2026 |
| 1930 | STATE | Toole County, MT | Oil Property | Jan 2026 |
| 1931 | STATE / | Phillips County, MT | Gas Property | Jan 2026 |
| 1932 | STATE 1 | Phillips County, MT | Gas Property | Jan 2026 |
| 1933 | STATE 1 | Phillips County, MT | Gas Property | Jan 2026 |
| 1934 | STATE 1 | Liberty County, MT | Gas Property | Jan 2026 |
| 1935 | STATE 1 | Pondera County, MT | Gas Property | Apr 2015 |
| 1936 | STATE 1 | Liberty County, MT | Gas Property | Sep 2017 |
| 1937 | STATE 1 | Toole County, MT | Gas Property | Jan 2026 |
| 1938 | STATE 1 | Toole County, MT | Oil Property | Aug 2002 |
| 1939 | STATE 1 | Blaine County, MT | Gas Property | Dec 2007 |
| 1940 | STATE 1 | Toole County, MT | Oil & Gas Property | Jul 2022 |
| 1941 | STATE 1 | Phillips County, MT | Gas Property | Jan 2026 |
| 1942 | STATE 13-3-3 | Blaine County, MT | Gas Property | Jan 2026 |
| 1943 | STATE 16 | Powder River County, MT | Oil & Gas Property | Jan 2026 |
| 1944 | STATE 16 | Hill County, MT | Gas Property | Jan 2014 |
| 1945 | STATE 16 | Hill County, MT | Gas Property | Jan 2026 |
| 1946 | STATE 16 | Hill County, MT | Gas Property | Jan 2026 |
| 1947 | STATE 16 | Sheridan County, MT | Oil & Gas Property | Jun 2017 |
| 1948 | STATE 1613 | Phillips County, MT | Gas Property | Jan 2026 |
| 1949 | STATE 1642 | Phillips County, MT | Gas Property | Jan 2026 |
| 1950 | STATE 1671 | Phillips County, MT | Gas Property | Jan 2026 |
| 1951 | STATE 2 | Fallon County, MT | Gas Property | Jan 2026 |
| 1952 | STATE 21-28 | Richland County, MT | Oil & Gas Property | Jan 2026 |
| 1953 | STATE 21X-16 | Richland County, MT | Oil & Gas Property | Jan 2026 |
| 1954 | STATE 36 | Blaine County, MT | Gas Property | Jan 2026 |
| 1955 | STATE 36 | Blaine County, MT | Gas Property | Jan 2026 |
| 1956 | STATE 36 | Richland County, MT | Oil & Gas Property | Jan 2026 |
| 1957 | STATE 36-0841 | Big Horn County, MT | Gas Property | Apr 2019 |
| 1958 | STATE 3641 | Phillips County, MT | Gas Property | Jan 2026 |
| 1959 | STATE 3651 | Phillips County, MT | Gas Property | Jan 2026 |
| 1960 | STATE 3670 | Phillips County, MT | Gas Property | Jan 2026 |
| 1961 | STATE 3690 | Big Horn County, MT | Gas Property | Jun 2013 |
| 1962 | STATE 4-16H | Richland County, MT | Oil & Gas Property | Jan 2026 |
| 1963 | STATE 42X-36C | Roosevelt County, MT | Oil & Gas Property | Jan 2026 |
| 1964 | STATE 44X-36 | Richland County, MT | Oil & Gas Property | Jan 2026 |
| 1965 | STATE 5 | Phillips County, MT | Gas Property | Jan 2026 |
| 1966 | STATE BLACKJACK | Richland County, MT | Oil & Gas Property | Jan 2026 |
| 1967 | STATE D | Dawson County, MT | Oil & Gas Property | Dec 2025 |
| 1968 | STATE DARROW | Liberty County, MT | Oil & Gas Property | Dec 2025 |
| 1969 | STATE HARDY 31-16H | Richland County, MT | Oil & Gas Property | Jan 2026 |
| 1970 | STATE LINE FEDERAL 2759 14-26 | Roosevelt County, MT | Oil & Gas Property | Jan 2026 |
| 1971 | STATE OF M | Blaine County, MT | Gas Property | Jun 2020 |
| 1972 | STATE RABBIT (1-36 | Blaine County, MT | Oil Property | Jan 2026 |
| 1973 | STATE(1 | Toole County, MT | Gas Property | Dec 2006 |
| 1974 | STATELINE | Roosevelt County, MT | Oil & Gas Property | Jan 2026 |
| 1975 | STEIGER | Toole County, MT | Gas Property | Jan 2026 |
| 1976 | STEINBEISSER | Richland County, MT | Oil & Gas Property | Jan 2026 |
| 1977 | STEINBEISSER | Richland County, MT | Oil & Gas Property | Jan 2026 |
| 1978 | STEINBEISSER | Richland County, MT | Oil & Gas Property | Jan 2026 |
| 1979 | STEINBEISSER 11X-18 | Richland County, MT | Oil & Gas Property | Jan 2026 |
| 1980 | STELLA 1-12-13-24 | Richland County, MT | Oil & Gas Property | Jan 2026 |
| 1981 | STENSVAD | Musselshell County, MT | Oil Property | Jan 2026 |
| 1982 | STENSVAD | Rosebud County, MT | Oil Property | Jan 2026 |
| 1983 | STEPHENS WHITE | Blaine County, MT | Gas Property | Feb 2012 |
| 1984 | STEPPLER | Richland County, MT | Oil & Gas Property | Jan 2026 |
| 1985 | STEPPLER STATE 34X-16 | Richland County, MT | Oil & Gas Property | Jan 2026 |
| 1986 | STEVENS | Blaine County, MT | Gas Property | Jan 2026 |
| 1987 | STILES | Phillips County, MT | Gas Property | Jan 2026 |
| 1988 | STILT FEDERAL 2658 42-22H | Richland County, MT | Oil & Gas Property | Jan 2026 |
| 1989 | STIMPSON | Sweet Grass County, MT | Gas Property | Oct 2022 |
| 1990 | STIRLING | Hill County, MT | Gas Property | Jan 2026 |
| 1991 | STOCKADE | Richland County, MT | Oil & Gas Property | Jan 2026 |
| 1992 | STOCKADE-GUNDERSON 2-7H | Richland County, MT | Oil & Gas Property | Jan 2026 |
| 1993 | STONE | Toole County, MT | Oil Property | Feb 2026 |
| 1994 | STONEWALL FED. 2959 43-21H | Roosevelt County, MT | Oil & Gas Property | Jan 2026 |
| 1995 | STONEY BUTTE | Richland County, MT | Oil & Gas Property | Jan 2026 |
| 1996 | STORM | Richland County, MT | Oil & Gas Property | Jan 2026 |
| 1997 | STORVIK | Richland County, MT | Oil & Gas Property | Jan 2026 |
| 1998 | STRASHEIM | Richland County, MT | Oil & Gas Property | Oct 2024 |
| 1999 | STRATTON | Toole County, MT | Gas Property | Dec 2025 |
| 2000 | STRINGER | Sheridan County, MT | Oil & Gas Property | Dec 2013 |