| 1901 | GRANT | Weld County, CO | Oil & Gas Property | Feb 2021 |
| 1902 | GRANT ARENS | Weld County, CO | Oil & Gas Property | Dec 2021 |
| 1903 | GRANT ELMQUIST 2 | Weld County, CO | Oil & Gas Property | Sep 2025 |
| 1904 | GRANT HURT 1 | Weld County, CO | Oil & Gas Property | Sep 2025 |
| 1905 | GRANT SALISBURY 2 | Weld County, CO | Oil & Gas Property | Sep 2025 |
| 1906 | GRASS MESA | Garfield County, CO | Oil & Gas Property | Sep 2025 |
| 1907 | GRASSY CREEK | Routt County, CO | Oil & Gas Property | Oct 2025 |
| 1908 | GRATTAN | Weld County, CO | Oil & Gas Property | Sep 2025 |
| 1909 | GRAVEL DRAW | Weld County, CO | Oil & Gas Property | Jun 2025 |
| 1910 | GRAY | Weld County, CO | Oil & Gas Property | Mar 2022 |
| 1911 | GRAY | Weld County, CO | Oil & Gas Property | Sep 2025 |
| 1912 | GRAY | Rio Blanco County, CO | Oil & Gas Property | Oct 2025 |
| 1913 | GRAY FED D-032703A A-19X | Rio Blanco County, CO | Oil & Gas Property | Oct 2025 |
| 1914 | GRAY GOVT D-032703 A A-18X | Rio Blanco County, CO | Oil & Gas Property | Oct 2025 |
| 1915 | GRAYS FEDERAL | Weld County, CO | Oil & Gas Property | Sep 2025 |
| 1916 | GRAYS-STATE | Cheyenne County, CO | Oil & Gas Property | Oct 2025 |
| 1917 | GRAZNAK | Weld County, CO | Oil & Gas Property | Dec 2021 |
| 1918 | GREASEWOOD | Weld County, CO | Oil & Gas Property | Sep 2025 |
| 1919 | GREAT DIVIDE | Moffat County, CO | Oil & Gas Property | Jun 2019 |
| 1920 | GREAT PLAINS 2 | Las Animas County, CO | Gas Property | Oct 2025 |
| 1921 | GREAT WESTERN | Weld County, CO | Oil & Gas Property | Dec 2020 |
| 1922 | GREAT WESTERN SUGAR | Weld County, CO | Oil & Gas Property | May 2024 |
| 1923 | GREELEY NATIONAL BANK | Weld County, CO | Oil & Gas Property | Sep 2025 |
| 1924 | GREELEY-ROTHE | Weld County, CO | Oil & Gas Property | Sep 2025 |
| 1925 | GREEN | Weld County, CO | Oil & Gas Property | Sep 2025 |
| 1926 | GREEN | Adams County, CO | Oil & Gas Property | Sep 2025 |
| 1927 | GREEN | Weld County, CO | Oil & Gas Property | Aug 2025 |
| 1928 | GREEN | Morgan County, CO | Oil & Gas Property | Dec 2007 |
| 1929 | GREEN | Weld County, CO | Oil & Gas Property | Sep 2025 |
| 1930 | GREEN MA 17 | Broomfield County, CO | Oil & Gas Property | Dec 2019 |
| 1931 | GREEN TEAL FED 34-27 | Weld County, CO | Oil & Gas Property | Sep 2025 |
| 1932 | GREEN VALLEY L6 | Weld County, CO | Oil & Gas Property | Sep 2018 |
| 1933 | GREENEMEIER | Adams County, CO | Oil & Gas Property | Sep 2018 |
| 1934 | GREENFIELD 15-1 | Yuma County, CO | Gas Property | Sep 2025 |
| 1935 | GREENHEAD | Weld County, CO | Oil & Gas Property | May 2017 |
| 1936 | GREENLEAF | Weld County, CO | Oil & Gas Property | Sep 2025 |
| 1937 | GREER | Weld County, CO | Oil & Gas Property | Jan 2020 |
| 1938 | GREGERSON | Weld County, CO | Oil & Gas Property | Sep 2024 |
| 1939 | GREGORY | Jackson County, CO | Oil & Gas Property | Sep 2025 |
| 1940 | GRENEMEYER | Weld County, CO | Oil & Gas Property | Sep 2025 |
| 1941 | GRENEMYER | Weld County, CO | Oil & Gas Property | Sep 2025 |
| 1942 | GREYSON LD28-7 | Weld County, CO | Oil & Gas Property | Sep 2025 |
| 1943 | GRIFFITH 1 | Mesa County, CO | Oil & Gas Property | Sep 2025 |
| 1944 | GRIFFITHS | Weld County, CO | Oil & Gas Property | Sep 2025 |
| 1945 | GRIGSBY | Weld County, CO | Oil & Gas Property | Sep 2025 |
| 1946 | GRIGSBY | Yuma County, CO | Gas Property | Sep 2025 |
| 1947 | GRIMM MOTOCROSS 4-65 2 | Arapahoe County, CO | Oil & Gas Property | Sep 2025 |
| 1948 | GRINDE 01-64-05 | Weld County, CO | Oil & Gas Property | Sep 2025 |
| 1949 | GRISWOLD | Weld County, CO | Oil & Gas Property | Sep 2025 |
| 1950 | GRIZZLY 0881 | Jackson County, CO | Oil & Gas Property | Sep 2025 |
| 1951 | GRIZZLY 5-64 15-16-1CHZ | Arapahoe County, CO | Oil & Gas Property | Oct 2025 |
| 1952 | GROFF A | La Plata County, CO | Gas Property | Sep 2025 |
| 1953 | GROSECLOSE | Yuma County, CO | Gas Property | Sep 2025 |
| 1954 | GROTHEER 5-61 11 | Weld County, CO | Oil & Gas Property | Sep 2025 |
| 1955 | GROVES | Weld County, CO | Oil & Gas Property | Nov 2020 |
| 1956 | GROVES FARM | Weld County, CO | Oil & Gas Property | Sep 2025 |
| 1957 | GRUEN 22 | Weld County, CO | Oil & Gas Property | Jun 2019 |
| 1958 | GUCCINI | Garfield County, CO | Oil & Gas Property | Sep 2025 |
| 1959 | GUERRERO | Weld County, CO | Oil & Gas Property | Apr 2017 |
| 1960 | GUEST | Weld County, CO | Oil & Gas Property | Sep 2025 |
| 1961 | GULLEY | Washington County, CO | Oil & Gas Property | May 2025 |
| 1962 | GULLEY 1 | Weld County, CO | Oil & Gas Property | Nov 2023 |
| 1963 | GUMESON | Weld County, CO | Oil & Gas Property | Aug 2014 |
| 1964 | GUNDERSON | Mesa County, CO | Oil & Gas Property | Sep 2025 |
| 1965 | GUNTHER | Weld County, CO | Oil & Gas Property | Dec 2016 |
| 1966 | GUNTHER | Weld County, CO | Oil & Gas Property | Jun 2017 |
| 1967 | GURLEY | Weld County, CO | Oil & Gas Property | Feb 2019 |
| 1968 | GURTLER | Weld County, CO | Oil & Gas Property | Sep 2025 |
| 1969 | GURTLER | Weld County, CO | Oil & Gas Property | Apr 2019 |
| 1970 | GUS LD | Adams County, CO | Oil & Gas Property | Sep 2025 |
| 1971 | GUSTAFSON | Weld County, CO | Oil & Gas Property | Jul 2025 |
| 1972 | GUTHRIE | Adams County, CO | Oil & Gas Property | Oct 2025 |
| 1973 | GUTTERSEN | Weld County, CO | Oil & Gas Property | Sep 2025 |
| 1974 | GUTTERSEN | Weld County, CO | Oil & Gas Property | Sep 2025 |
| 1975 | GUTTERSEN FEDERAL STATE YY0 | Weld County, CO | Oil & Gas Property | Sep 2025 |
| 1976 | GWAA | Weld County, CO | Oil & Gas Property | Sep 2025 |
| 1977 | GWARDAR | Weld County, CO | Oil & Gas Property | Sep 2025 |
| 1978 | GYPSUM RANCH | Garfield County, CO | Oil & Gas Property | Sep 2025 |
| 1979 | H B 5 | Montezuma County, CO | Oil & Gas Property | Oct 2025 |
| 1980 | H W GRAY | Rio Blanco County, CO | Oil & Gas Property | Oct 2025 |
| 1981 | H-Y 20 | Weld County, CO | Oil & Gas Property | Sep 2017 |
| 1982 | H-Y 29 | Weld County, CO | Oil & Gas Property | Sep 2017 |
| 1983 | HA 4 | Montezuma County, CO | Oil & Gas Property | Oct 2025 |
| 1984 | HA 5 | Montezuma County, CO | Oil & Gas Property | Oct 2025 |
| 1985 | HA 6 | Montezuma County, CO | Oil & Gas Property | Oct 2025 |
| 1986 | HABEL | Adams County, CO | Oil & Gas Property | May 2019 |
| 1987 | HAGAR 5-64 15-16-1BHZ | Arapahoe County, CO | Oil & Gas Property | Oct 2025 |
| 1988 | HAGEMANN | Yuma County, CO | Gas Property | Sep 2025 |
| 1989 | HAGEMEISTER USX AA | Weld County, CO | Oil & Gas Property | Jan 2021 |
| 1990 | HAGEN | Garfield County, CO | Oil & Gas Property | Sep 2025 |
| 1991 | HAGEN | Weld County, CO | Oil & Gas Property | Jun 2020 |
| 1992 | HAGEN FEDERAL | Garfield County, CO | Oil & Gas Property | Sep 2025 |
| 1993 | HAGOOD | Rio Blanco County, CO | Oil & Gas Property | Oct 2025 |
| 1994 | HAHN | Weld County, CO | Oil & Gas Property | Dec 2017 |
| 1995 | HAHN | La Plata County, CO | Gas Property | Sep 2025 |
| 1996 | HAHN GAS UNIT | La Plata County, CO | Gas Property | Sep 2025 |
| 1997 | HAL STEWART | Moffat County, CO | Oil & Gas Property | Sep 2025 |
| 1998 | HALE | Weld County, CO | Oil & Gas Property | May 2023 |
| 1999 | HALE | Weld County, CO | Oil & Gas Property | Apr 2022 |
| 2000 | HALE | Weld County, CO | Oil & Gas Property | Sep 2025 |