| 4001 | SHARON 21 | Weld County, CO | Oil & Gas Property | Feb 2024 |
| 4002 | SHARP | Washington County, CO | Oil Property | Feb 2024 |
| 4003 | SHARP | La Plata County, CO | Gas Property | Feb 2024 |
| 4004 | SHARP 2 | Adams County, CO | Oil & Gas Property | Feb 2024 |
| 4005 | SHARP-BLAKE | Washington County, CO | Oil Property | Feb 2024 |
| 4006 | SHARPE STATE LD02-7 | Weld County, CO | Oil & Gas Property | Feb 2024 |
| 4007 | SHARPLES-MCLAUGHLIN | Rio Blanco County, CO | Oil & Gas Property | Feb 2024 |
| 4008 | SHAW 1 | Weld County, CO | Oil & Gas Property | Feb 2024 |
| 4009 | SHAY | Yuma County, CO | Gas Property | Feb 2024 |
| 4010 | SHEA 23-1 | Yuma County, CO | Gas Property | Feb 2024 |
| 4011 | SHEEP | Weld County, CO | Oil & Gas Property | Feb 2020 |
| 4012 | SHEEP MOUNT | Huerfano County, CO | Gas Property | Feb 2024 |
| 4013 | SHELEY | Weld County, CO | Oil & Gas Property | Feb 2024 |
| 4014 | SHELL | Garfield County, CO | Oil & Gas Property | Jan 2024 |
| 4015 | SHELL CREEK | Moffat County, CO | Oil & Gas Property | Nov 2023 |
| 4016 | SHELTON | Weld County, CO | Oil & Gas Property | Feb 2024 |
| 4017 | SHERLEY | Weld County, CO | Oil & Gas Property | Feb 2024 |
| 4018 | SHERWOOD L | Weld County, CO | Oil & Gas Property | Sep 2022 |
| 4019 | SHIDELER | Garfield County, CO | Oil & Gas Property | Feb 2024 |
| 4020 | SHIDELER | Garfield County, CO | Oil & Gas Property | Feb 2024 |
| 4021 | SHIDELER FEDER | Garfield County, CO | Oil & Gas Property | Feb 2024 |
| 4022 | SHIVELY | Adams County, CO | Oil & Gas Property | Sep 2021 |
| 4023 | SHIVELY | Yuma County, CO | Gas Property | Feb 2024 |
| 4024 | SHIVERS | Weld County, CO | Oil & Gas Property | Dec 2017 |
| 4025 | SHOEMAKER | Weld County, CO | Oil & Gas Property | Feb 2024 |
| 4026 | SHOEMAKER 01-34 | La Plata County, CO | Gas Property | Feb 2024 |
| 4027 | SHOENEMAN | Weld County, CO | Oil & Gas Property | Jul 2014 |
| 4028 | SHOOK 3-10 | Adams County, CO | Oil & Gas Property | Feb 2024 |
| 4029 | SHORE 16 | Garfield County, CO | Oil & Gas Property | Feb 2024 |
| 4030 | SHORT | Yuma County, CO | Oil & Gas Property | Feb 2024 |
| 4031 | SHORTY | Morgan County, CO | Oil & Gas Property | May 2023 |
| 4032 | SHOVELER FED | Weld County, CO | Oil & Gas Property | Feb 2024 |
| 4033 | SHOVELER GOLDENEYE FED 21-16-1HN | Weld County, CO | Oil & Gas Property | Feb 2024 |
| 4034 | SHOVELER HUNT FED 19-24-16HN | Weld County, CO | Oil & Gas Property | Feb 2024 |
| 4035 | SHOWERS | Weld County, CO | Oil & Gas Property | Apr 2021 |
| 4036 | SHUFLY STATE Y34-7 | Weld County, CO | Oil & Gas Property | Feb 2024 |
| 4037 | SHULL | Weld County, CO | Oil & Gas Property | Feb 2024 |
| 4038 | SHULTZ | Weld County, CO | Oil & Gas Property | Apr 2023 |
| 4039 | SHULTZ | Weld County, CO | Oil & Gas Property | Nov 2018 |
| 4040 | SHUPE 13 | Weld County, CO | Oil & Gas Property | Jan 2023 |
| 4041 | SHUR VIEW | Weld County, CO | Oil & Gas Property | Feb 2024 |
| 4042 | SHUTT | Weld County, CO | Oil & Gas Property | Aug 2014 |
| 4043 | SICKLER | Weld County, CO | Oil & Gas Property | Feb 2024 |
| 4044 | SIDNEY STREAR | Weld County, CO | Oil & Gas Property | Feb 2024 |
| 4045 | SIDWELL | Weld County, CO | Oil & Gas Property | Dec 2015 |
| 4046 | SIEBRING | Weld County, CO | Oil & Gas Property | Feb 2024 |
| 4047 | SIERRA M | Arapahoe County, CO | Oil & Gas Property | Feb 2024 |
| 4048 | SIEVERS | Weld County, CO | Oil & Gas Property | May 2023 |
| 4049 | SIEVERS | Weld County, CO | Oil & Gas Property | Sep 2020 |
| 4050 | SIGG | Weld County, CO | Oil & Gas Property | Feb 2024 |
| 4051 | SILT VALLEY | Garfield County, CO | Oil & Gas Property | Feb 2024 |
| 4052 | SILVA | Weld County, CO | Oil & Gas Property | Aug 2019 |
| 4053 | SILVERTON 5 | Weld County, CO | Oil & Gas Property | Feb 2024 |
| 4054 | SIMINOE | Mesa County, CO | Oil & Gas Property | Jul 2017 |
| 4055 | SIMMONS | Yuma County, CO | Gas Property | Feb 2024 |
| 4056 | SIMMONS | Yuma County, CO | Gas Property | Mar 2024 |
| 4057 | SIMMONS | Weld County, CO | Oil & Gas Property | Feb 2023 |
| 4058 | SIMMONS | La Plata County, CO | Gas Property | Feb 2024 |
| 4059 | SIMMS | La Plata County, CO | Gas Property | Feb 2024 |
| 4060 | SIMON LAND & CATTLE | La Plata County, CO | Gas Property | Feb 2024 |
| 4061 | SIMONSEN | Weld County, CO | Oil & Gas Property | Feb 2024 |
| 4062 | SIMONSEN-SCHAEFER 7 | Weld County, CO | Oil & Gas Property | Feb 2024 |
| 4063 | SIMPSON | Adams County, CO | Oil & Gas Property | Dec 2023 |
| 4064 | SIMPSON | Weld County, CO | Oil & Gas Property | Feb 2024 |
| 4065 | SIMPSON | Weld County, CO | Oil & Gas Property | Feb 2024 |
| 4066 | SIMPSON 2 | Moffat County, CO | Gas Property | Feb 2024 |
| 4067 | SIMPSON MD 2 | Boulder County, CO | Oil & Gas Property | Jan 2021 |
| 4068 | SINDT 1 | Logan County, CO | Oil Property | Feb 2024 |
| 4069 | SINGER E 34 | Weld County, CO | Oil & Gas Property | Aug 2016 |
| 4070 | SINGLE EAGLE | San Miguel County, CO | Oil & Gas Property | Nov 2023 |
| 4071 | SINJIN | Weld County, CO | Oil & Gas Property | Feb 2024 |
| 4072 | SIRIOS BROTHERS | Weld County, CO | Oil & Gas Property | Aug 2015 |
| 4073 | SITTON FEDERAL | La Plata County, CO | Gas Property | Feb 2024 |
| 4074 | SITZMAN | Weld County, CO | Oil & Gas Property | Dec 2017 |
| 4075 | SITZMAN | Weld County, CO | Oil & Gas Property | May 2017 |
| 4076 | SITZMAN | Weld County, CO | Oil & Gas Property | Oct 2016 |
| 4077 | SITZMAN | Weld County, CO | Oil & Gas Property | Apr 2013 |
| 4078 | SKAER | Larimer County, CO | Oil & Gas Property | Jun 2017 |
| 4079 | SKI 3 | Rio Blanco County, CO | Oil Property | Apr 2009 |
| 4080 | SKIM | Weld County, CO | Oil & Gas Property | Feb 2024 |
| 4081 | SKIM STATE | Weld County, CO | Oil & Gas Property | Feb 2024 |
| 4082 | SKINNER RIDGE | Garfield County, CO | Oil & Gas Property | Feb 2024 |
| 4083 | SKR 59 | Garfield County, CO | Oil & Gas Property | Feb 2024 |
| 4084 | SKR 698 | Garfield County, CO | Oil & Gas Property | Feb 2024 |
| 4085 | SKURICH | Weld County, CO | Oil & Gas Property | Mar 2019 |
| 4086 | SKY RANCH 4-65 | Arapahoe County, CO | Oil & Gas Property | Feb 2024 |
| 4087 | SKYWAY | Weld County, CO | Oil & Gas Property | Aug 2019 |
| 4088 | SLANOVICH | Fremont County, CO | Oil Property | Oct 2022 |
| 4089 | SLATER | Weld County, CO | Oil & Gas Property | Jun 2018 |
| 4090 | SLEDGE C 9 | Weld County, CO | Oil & Gas Property | Sep 2016 |
| 4091 | SLEEPING UTE | Montezuma County, CO | Oil & Gas Property | Feb 2024 |
| 4092 | SLICK ROCK | Weld County, CO | Oil & Gas Property | Feb 2024 |
| 4093 | SLIGO 8-67-26-23C | Weld County, CO | Oil & Gas Property | Mar 2024 |
| 4094 | SLUGGER | La Plata County, CO | Gas Property | Feb 2024 |
| 4095 | SLW GREEN STATE BB 18 | Weld County, CO | Oil & Gas Property | Jan 2021 |
| 4096 | SLW RANCH | Weld County, CO | Oil & Gas Property | Feb 2024 |
| 4097 | SLW STATE | Weld County, CO | Oil & Gas Property | Jun 2021 |
| 4098 | SMALL | Washington County, CO | Gas Property | Feb 2024 |
| 4099 | SMALL EYED | Weld County, CO | Oil & Gas Property | Feb 2024 |
| 4100 | SMART | Logan County, CO | Oil & Gas Property | Feb 2009 |