| 1901 | GRIFFITH 1 | Mesa County, CO | Oil & Gas Property | Jan 2025 |
| 1902 | GRIFFITHS | Weld County, CO | Oil & Gas Property | Jan 2025 |
| 1903 | GRIGSBY | Yuma County, CO | Gas Property | Jan 2025 |
| 1904 | GRIMM MOTOCROSS 4-65 2 | Arapahoe County, CO | Oil & Gas Property | Sep 2024 |
| 1905 | GRINDE 01-64-05 | Weld County, CO | Oil & Gas Property | Jan 2025 |
| 1906 | GRISWOLD | Weld County, CO | Oil & Gas Property | Jan 2025 |
| 1907 | GRIZZLY 0881 | Jackson County, CO | Oil & Gas Property | Jan 2025 |
| 1908 | GRIZZLY 5-64 15-16-1CHZ | Arapahoe County, CO | Oil & Gas Property | Jan 2025 |
| 1909 | GROFF A | La Plata County, CO | Gas Property | Jan 2025 |
| 1910 | GROSECLOSE | Yuma County, CO | Gas Property | Jan 2025 |
| 1911 | GROTHEER 5-61 11 | Weld County, CO | Oil & Gas Property | Jan 2025 |
| 1912 | GROVES | Weld County, CO | Oil & Gas Property | Nov 2020 |
| 1913 | GROVES FARM | Weld County, CO | Oil & Gas Property | Jan 2025 |
| 1914 | GRUEN 22 | Weld County, CO | Oil & Gas Property | Jun 2019 |
| 1915 | GUCCINI | Garfield County, CO | Oil & Gas Property | Jan 2025 |
| 1916 | GUERRERO | Weld County, CO | Oil & Gas Property | Apr 2017 |
| 1917 | GUEST | Weld County, CO | Oil & Gas Property | Jan 2025 |
| 1918 | GULLEY | Washington County, CO | Oil & Gas Property | Jan 2025 |
| 1919 | GULLEY 1 | Weld County, CO | Oil & Gas Property | Nov 2023 |
| 1920 | GUMESON | Weld County, CO | Oil & Gas Property | Aug 2014 |
| 1921 | GUNDERSON | Mesa County, CO | Oil & Gas Property | Jan 2025 |
| 1922 | GUNTHER | Weld County, CO | Oil & Gas Property | Jun 2017 |
| 1923 | GUNTHER | Weld County, CO | Oil & Gas Property | Dec 2016 |
| 1924 | GURLEY | Weld County, CO | Oil & Gas Property | Feb 2019 |
| 1925 | GURTLER | Weld County, CO | Oil & Gas Property | Apr 2019 |
| 1926 | GURTLER | Weld County, CO | Oil & Gas Property | Jan 2025 |
| 1927 | GUS LD | Adams County, CO | Oil & Gas Property | Jan 2025 |
| 1928 | GUSTAFSON | Weld County, CO | Oil & Gas Property | Jan 2025 |
| 1929 | GUTHRIE | Adams County, CO | Oil & Gas Property | Feb 2025 |
| 1930 | GUTTERSEN | Weld County, CO | Oil & Gas Property | Jan 2025 |
| 1931 | GUTTERSEN | Weld County, CO | Oil & Gas Property | Jan 2025 |
| 1932 | GUTTERSEN FEDERAL STATE YY0 | Weld County, CO | Oil & Gas Property | Jan 2025 |
| 1933 | GWAA | Weld County, CO | Oil & Gas Property | Jan 2025 |
| 1934 | GWARDAR | Weld County, CO | Oil & Gas Property | Jan 2025 |
| 1935 | GYPSUM RANCH | Garfield County, CO | Oil & Gas Property | Jan 2025 |
| 1936 | H B 5 | Montezuma County, CO | Oil & Gas Property | Feb 2025 |
| 1937 | H W GRAY | Rio Blanco County, CO | Oil & Gas Property | Jan 2025 |
| 1938 | H-Y 20 | Weld County, CO | Oil & Gas Property | Sep 2017 |
| 1939 | H-Y 29 | Weld County, CO | Oil & Gas Property | Sep 2017 |
| 1940 | HA 4 | Montezuma County, CO | Oil & Gas Property | Feb 2025 |
| 1941 | HA 5 | Montezuma County, CO | Oil & Gas Property | Feb 2025 |
| 1942 | HA 6 | Montezuma County, CO | Oil & Gas Property | Feb 2025 |
| 1943 | HABEL | Adams County, CO | Oil & Gas Property | May 2019 |
| 1944 | HAGAR 5-64 15-16-1BHZ | Arapahoe County, CO | Oil & Gas Property | Jan 2025 |
| 1945 | HAGEMANN | Yuma County, CO | Gas Property | Jan 2025 |
| 1946 | HAGEMEISTER USX AA | Weld County, CO | Oil & Gas Property | Jan 2021 |
| 1947 | HAGEN | Garfield County, CO | Oil & Gas Property | Jan 2025 |
| 1948 | HAGEN | Weld County, CO | Oil & Gas Property | Jun 2020 |
| 1949 | HAGEN FEDERAL | Garfield County, CO | Oil & Gas Property | Jan 2025 |
| 1950 | HAGOOD | Rio Blanco County, CO | Oil & Gas Property | Jan 2025 |
| 1951 | HAHN | Weld County, CO | Oil & Gas Property | Dec 2017 |
| 1952 | HAHN | La Plata County, CO | Gas Property | Jan 2025 |
| 1953 | HAHN GAS UNIT | La Plata County, CO | Gas Property | Jan 2025 |
| 1954 | HALE | Weld County, CO | Oil & Gas Property | Apr 2022 |
| 1955 | HALE | Weld County, CO | Oil & Gas Property | May 2023 |
| 1956 | HALE | Weld County, CO | Oil & Gas Property | Jan 2025 |
| 1957 | HALEY | Logan County, CO | Oil & Gas Property | Jan 2025 |
| 1958 | HALEY | Weld County, CO | Oil & Gas Property | Nov 2018 |
| 1959 | HALEY | Weld County, CO | Oil & Gas Property | Jan 2025 |
| 1960 | HALEY | Boulder County, CO | Oil & Gas Property | Dec 2023 |
| 1961 | HALEY LC27-7 | Weld County, CO | Oil & Gas Property | Jan 2025 |
| 1962 | HALL | Weld County, CO | Oil & Gas Property | Feb 2017 |
| 1963 | HALL 19 | Weld County, CO | Oil & Gas Property | Dec 2019 |
| 1964 | HALL 28 | Weld County, CO | Oil & Gas Property | Aug 2021 |
| 1965 | HALLER | Weld County, CO | Oil & Gas Property | Jan 2018 |
| 1966 | HAMBERT | Weld County, CO | Oil & Gas Property | Jun 2020 |
| 1967 | HAMILL 1 | Moffat County, CO | Oil & Gas Property | Feb 2025 |
| 1968 | HAMILTON | Weld County, CO | Oil & Gas Property | Apr 2018 |
| 1969 | HAMILTON CREEK | San Miguel County, CO | Oil & Gas Property | Jul 2024 |
| 1970 | HAMM CANYON | San Miguel County, CO | Oil & Gas Property | Apr 2024 |
| 1971 | HAMMER 3 | Weld County, CO | Oil & Gas Property | Jan 2025 |
| 1972 | HANCOCK | La Plata County, CO | Gas Property | Jan 2025 |
| 1973 | HANCOCK GULCH | Mesa County, CO | Gas Property | Apr 2008 |
| 1974 | HANDKE | Adams County, CO | Oil & Gas Property | Jun 2017 |
| 1975 | HANGS | Garfield County, CO | Oil & Gas Property | Jan 2025 |
| 1976 | HANKINS | Weld County, CO | Oil & Gas Property | May 2023 |
| 1977 | HANSCOME | Weld County, CO | Oil & Gas Property | Jan 2025 |
| 1978 | HANSCOME | Weld County, CO | Oil & Gas Property | Jun 2024 |
| 1979 | HANSEN | Weld County, CO | Oil & Gas Property | Jul 2020 |
| 1980 | HANSEN STATE | Weld County, CO | Oil & Gas Property | Jan 2025 |
| 1981 | HANSON | Adams County, CO | Oil & Gas Property | Sep 2018 |
| 1982 | HANSON D 30-1 | Weld County, CO | Oil & Gas Property | Mar 2017 |
| 1983 | HANSTEDT 07U-01 | La Plata County, CO | Gas Property | Jan 2025 |
| 1984 | HARDAWAY | Adams County, CO | Oil Property | Dec 1999 |
| 1985 | HARDESTY | Weld County, CO | Oil & Gas Property | Mar 2018 |
| 1986 | HARDING | Yuma County, CO | Gas Property | Jan 2025 |
| 1987 | HARDING | Yuma County, CO | Gas Property | Jan 2025 |
| 1988 | HARDMAN | Weld County, CO | Oil & Gas Property | Oct 2018 |
| 1989 | HARDWICK | Yuma County, CO | Gas Property | Jan 2025 |
| 1990 | HARKER | Cheyenne County, CO | Oil & Gas Property | Jan 2008 |
| 1991 | HARKER RANCH MORROW UNIT(HRMU | Cheyenne County, CO | Oil & Gas Property | Dec 2024 |
| 1992 | HARKIS | Weld County, CO | Oil & Gas Property | Jul 2019 |
| 1993 | HARLEQUIN | Weld County, CO | Oil & Gas Property | Jan 2025 |
| 1994 | HARLEY | Cheyenne County, CO | Oil Property | Dec 2024 |
| 1995 | HARMON | La Plata County, CO | Gas Property | Jan 2025 |
| 1996 | HAROLD 6 | Weld County, CO | Oil & Gas Property | Jan 2025 |
| 1997 | HARPER | Weld County, CO | Oil & Gas Property | Jan 2025 |
| 1998 | HARPER | La Plata County, CO | Gas Property | Jan 2025 |
| 1999 | HARPER A21-6 | Weld County, CO | Oil & Gas Property | Jan 2025 |
| 2000 | HARPER GAS UNIT 1-13U | La Plata County, CO | Gas Property | Jan 2025 |