| 2001 | SCHOMBER | Weld County, CO | Oil & Gas Property | Jan 2025 |
| 2002 | SCHOTT B 33 | Weld County, CO | Oil & Gas Property | Jun 2012 |
| 2003 | SCHRUTE | Weld County, CO | Oil & Gas Property | Jan 2025 |
| 2004 | SCHRUTE FARMS 9 | Weld County, CO | Oil & Gas Property | Jan 2025 |
| 2005 | SCHWAB 26 | Weld County, CO | Oil & Gas Property | Oct 2019 |
| 2006 | SCOOTER | Weld County, CO | Oil & Gas Property | Nov 2023 |
| 2007 | SCOTT | Weld County, CO | Oil & Gas Property | Jan 2025 |
| 2008 | SCOTT N27 | Weld County, CO | Oil & Gas Property | Apr 2017 |
| 2009 | SCOTTSDALE | Weld County, CO | Oil & Gas Property | Dec 2024 |
| 2010 | SEATON | Weld County, CO | Oil & Gas Property | Jan 2019 |
| 2011 | SEC FOUR | Weld County, CO | Oil & Gas Property | Apr 2019 |
| 2012 | SEELE | Weld County, CO | Oil & Gas Property | Dec 2020 |
| 2013 | SEELEY | Weld County, CO | Oil & Gas Property | Jan 2025 |
| 2014 | SEELEY FEDERAL 108 | Weld County, CO | Oil & Gas Property | Jan 2025 |
| 2015 | SEGAL | Weld County, CO | Oil & Gas Property | Jan 2025 |
| 2016 | SEIFRIED | Weld County, CO | Oil & Gas Property | Jun 2008 |
| 2017 | SEKICH | Weld County, CO | Oil & Gas Property | Jul 2021 |
| 2018 | SEKICH STATE | Weld County, CO | Oil & Gas Property | Jan 2025 |
| 2019 | SENA 15-2 | Weld County, CO | Oil & Gas Property | Jan 2018 |
| 2020 | SENECA E 15-72-1H | Weld County, CO | Oil & Gas Property | Jan 2025 |
| 2021 | SEVENTY HOLES | Weld County, CO | Oil & Gas Property | Jan 2025 |
| 2022 | SEYFRIED | Weld County, CO | Oil & Gas Property | Jan 2025 |
| 2023 | SEYLER | Weld County, CO | Oil & Gas Property | Jan 2025 |
| 2024 | SHABLE | Weld County, CO | Oil & Gas Property | Oct 2024 |
| 2025 | SHABLE | Weld County, CO | Oil & Gas Property | Jan 2025 |
| 2026 | SHABLE | Weld County, CO | Oil & Gas Property | Jun 2022 |
| 2027 | SHABLE | Weld County, CO | Oil & Gas Property | Jul 2017 |
| 2028 | SHABLE | Weld County, CO | Oil & Gas Property | Jan 2025 |
| 2029 | SHABLE USX | Weld County, CO | Oil & Gas Property | Jan 2025 |
| 2030 | SHADOW | Weld County, CO | Oil & Gas Property | Jan 2025 |
| 2031 | SHAFER | Weld County, CO | Oil & Gas Property | Sep 2019 |
| 2032 | SHAFTO J27 | Weld County, CO | Oil & Gas Property | Aug 2018 |
| 2033 | SHAKE 11 | Weld County, CO | Oil & Gas Property | Jan 2025 |
| 2034 | SHAKLEE | Weld County, CO | Oil & Gas Property | Jun 2019 |
| 2035 | SHALLOT 1930 | Weld County, CO | Oil & Gas Property | Jan 2025 |
| 2036 | SHANNON 14 | Weld County, CO | Oil & Gas Property | Sep 2016 |
| 2037 | SHARKEY | Weld County, CO | Oil & Gas Property | Nov 2021 |
| 2038 | SHARON 21 | Weld County, CO | Oil & Gas Property | Jan 2025 |
| 2039 | SHARPE STATE LD02-7 | Weld County, CO | Oil & Gas Property | Jan 2025 |
| 2040 | SHAW 1 | Weld County, CO | Oil & Gas Property | Jun 2024 |
| 2041 | SHEEP | Weld County, CO | Oil & Gas Property | Feb 2020 |
| 2042 | SHELEY | Weld County, CO | Oil & Gas Property | Jan 2025 |
| 2043 | SHELTON | Weld County, CO | Oil & Gas Property | Jan 2025 |
| 2044 | SHERLEY | Weld County, CO | Oil & Gas Property | Jan 2025 |
| 2045 | SHERWOOD L | Weld County, CO | Oil & Gas Property | Sep 2022 |
| 2046 | SHIVERS | Weld County, CO | Oil & Gas Property | Dec 2017 |
| 2047 | SHOEMAKER | Weld County, CO | Oil & Gas Property | Jan 2025 |
| 2048 | SHOENEMAN | Weld County, CO | Oil & Gas Property | Sep 2014 |
| 2049 | SHOVELER FED | Weld County, CO | Oil & Gas Property | Jan 2025 |
| 2050 | SHOVELER GOLDENEYE FED 21-16-1HN | Weld County, CO | Oil & Gas Property | Jan 2025 |
| 2051 | SHOVELER HUNT FED 19-24-16HN | Weld County, CO | Oil & Gas Property | Jan 2025 |
| 2052 | SHOWERS | Weld County, CO | Oil & Gas Property | Apr 2021 |
| 2053 | SHUFLY STATE Y34-7 | Weld County, CO | Oil & Gas Property | Jan 2025 |
| 2054 | SHULL | Weld County, CO | Oil & Gas Property | Jan 2025 |
| 2055 | SHULTZ | Weld County, CO | Oil & Gas Property | Apr 2023 |
| 2056 | SHULTZ | Weld County, CO | Oil & Gas Property | Nov 2018 |
| 2057 | SHUPE 13 | Weld County, CO | Oil & Gas Property | Jan 2023 |
| 2058 | SHUR VIEW | Weld County, CO | Oil & Gas Property | Jan 2025 |
| 2059 | SHUTT | Weld County, CO | Oil & Gas Property | Aug 2014 |
| 2060 | SICKLER | Weld County, CO | Oil & Gas Property | Jan 2025 |
| 2061 | SIDNEY STREAR | Weld County, CO | Oil & Gas Property | Jan 2025 |
| 2062 | SIDWELL | Weld County, CO | Oil & Gas Property | Dec 2015 |
| 2063 | SIEBRING | Weld County, CO | Oil & Gas Property | Jan 2025 |
| 2064 | SIEVERS | Weld County, CO | Oil & Gas Property | Mar 2024 |
| 2065 | SIEVERS | Weld County, CO | Oil & Gas Property | Sep 2020 |
| 2066 | SIGG | Weld County, CO | Oil & Gas Property | Jan 2025 |
| 2067 | SILVA | Weld County, CO | Oil & Gas Property | Aug 2019 |
| 2068 | SILVERBACK | Weld County, CO | Oil & Gas Property | Jan 2025 |
| 2069 | SILVERTON 5 | Weld County, CO | Oil & Gas Property | Jan 2025 |
| 2070 | SIMMONS | Weld County, CO | Oil & Gas Property | Feb 2023 |
| 2071 | SIMONSEN | Weld County, CO | Oil & Gas Property | Jan 2025 |
| 2072 | SIMONSEN-SCHAEFER 7 | Weld County, CO | Oil & Gas Property | Jan 2025 |
| 2073 | SIMPSON | Weld County, CO | Oil & Gas Property | Jan 2025 |
| 2074 | SIMPSON | Weld County, CO | Oil & Gas Property | Jan 2025 |
| 2075 | SINGER E 34 | Weld County, CO | Oil & Gas Property | Aug 2016 |
| 2076 | SINJIN | Weld County, CO | Oil & Gas Property | Jan 2025 |
| 2077 | SIRIOS | Weld County, CO | Oil & Gas Property | May 2013 |
| 2078 | SIRIOS BROTHERS | Weld County, CO | Oil & Gas Property | Sep 2015 |
| 2079 | SITZMAN | Weld County, CO | Oil & Gas Property | Dec 2017 |
| 2080 | SITZMAN | Weld County, CO | Oil & Gas Property | May 2017 |
| 2081 | SITZMAN | Weld County, CO | Oil & Gas Property | Oct 2016 |
| 2082 | SITZMAN | Weld County, CO | Oil & Gas Property | Apr 2013 |
| 2083 | SKIM | Weld County, CO | Oil & Gas Property | Jan 2025 |
| 2084 | SKIM STATE | Weld County, CO | Oil & Gas Property | Jan 2025 |
| 2085 | SKURICH | Weld County, CO | Oil & Gas Property | Mar 2019 |
| 2086 | SKYWAY | Weld County, CO | Oil & Gas Property | Aug 2019 |
| 2087 | SLATER | Weld County, CO | Oil & Gas Property | Jul 2018 |
| 2088 | SLEDGE C 9 | Weld County, CO | Oil & Gas Property | Sep 2016 |
| 2089 | SLICK ROCK | Weld County, CO | Oil & Gas Property | Jan 2025 |
| 2090 | SLW GREEN STATE BB 18 | Weld County, CO | Oil & Gas Property | Feb 2021 |
| 2091 | SLW RANCH | Weld County, CO | Oil & Gas Property | Jan 2025 |
| 2092 | SLW STATE | Weld County, CO | Oil & Gas Property | Jun 2021 |
| 2093 | SMALL EYED | Weld County, CO | Oil & Gas Property | Jan 2025 |
| 2094 | SMITH | Weld County, CO | Oil & Gas Property | Oct 2016 |
| 2095 | SMITH STATE LD12-7 | Weld County, CO | Oil & Gas Property | Jan 2025 |
| 2096 | SMITS | Weld County, CO | Oil & Gas Property | Apr 2020 |
| 2097 | SNOWMASS | Weld County, CO | Oil & Gas Property | Jan 2025 |
| 2098 | SOCO 20 | Weld County, CO | Oil & Gas Property | Jul 2019 |
| 2099 | SOCO 29 | Weld County, CO | Oil & Gas Property | Jan 2020 |
| 2100 | SONIC STAR | Weld County, CO | Oil & Gas Property | Jan 2025 |