| 201 | SHAY | Yuma County, CO | Gas Property | Feb 2024 |
| 202 | SHEA 23-1 | Yuma County, CO | Gas Property | Feb 2024 |
| 203 | SHEEP | Weld County, CO | Oil & Gas Property | Feb 2020 |
| 204 | SHEEP MOUNT | Huerfano County, CO | Gas Property | Feb 2024 |
| 205 | SHELEY | Weld County, CO | Oil & Gas Property | Feb 2024 |
| 206 | SHELL | Garfield County, CO | Oil & Gas Property | Jan 2024 |
| 207 | SHELL CREEK | Moffat County, CO | Oil & Gas Property | Nov 2023 |
| 208 | SHELTON | Weld County, CO | Oil & Gas Property | Feb 2024 |
| 209 | SHERLEY | Weld County, CO | Oil & Gas Property | Feb 2024 |
| 210 | SHERWOOD L | Weld County, CO | Oil & Gas Property | Sep 2022 |
| 211 | SHIDELER | Garfield County, CO | Oil & Gas Property | Feb 2024 |
| 212 | SHIDELER | Garfield County, CO | Oil & Gas Property | Feb 2024 |
| 213 | SHIDELER FEDER | Garfield County, CO | Oil & Gas Property | Feb 2024 |
| 214 | SHIVELY | Adams County, CO | Oil & Gas Property | Sep 2021 |
| 215 | SHIVELY | Yuma County, CO | Gas Property | Feb 2024 |
| 216 | SHIVERS | Weld County, CO | Oil & Gas Property | Dec 2017 |
| 217 | SHOEMAKER | Weld County, CO | Oil & Gas Property | Feb 2024 |
| 218 | SHOEMAKER 01-34 | La Plata County, CO | Gas Property | Feb 2024 |
| 219 | SHOENEMAN | Weld County, CO | Oil & Gas Property | Jul 2014 |
| 220 | SHOOK 3-10 | Adams County, CO | Oil & Gas Property | Feb 2024 |
| 221 | SHORE 16 | Garfield County, CO | Oil & Gas Property | Feb 2024 |
| 222 | SHORT | Yuma County, CO | Oil & Gas Property | Feb 2024 |
| 223 | SHORTY | Morgan County, CO | Oil & Gas Property | May 2023 |
| 224 | SHOVELER FED | Weld County, CO | Oil & Gas Property | Feb 2024 |
| 225 | SHOVELER GOLDENEYE FED 21-16-1HN | Weld County, CO | Oil & Gas Property | Feb 2024 |
| 226 | SHOVELER HUNT FED 19-24-16HN | Weld County, CO | Oil & Gas Property | Feb 2024 |
| 227 | SHOWERS | Weld County, CO | Oil & Gas Property | Apr 2021 |
| 228 | SHUFLY STATE Y34-7 | Weld County, CO | Oil & Gas Property | Feb 2024 |
| 229 | SHULL | Weld County, CO | Oil & Gas Property | Feb 2024 |
| 230 | SHULTZ | Weld County, CO | Oil & Gas Property | Apr 2023 |
| 231 | SHULTZ | Weld County, CO | Oil & Gas Property | Nov 2018 |
| 232 | SHUPE 13 | Weld County, CO | Oil & Gas Property | Jan 2023 |
| 233 | SHUR VIEW | Weld County, CO | Oil & Gas Property | Feb 2024 |
| 234 | SHUTT | Weld County, CO | Oil & Gas Property | Aug 2014 |
| 235 | SICKLER | Weld County, CO | Oil & Gas Property | Feb 2024 |
| 236 | SIDNEY STREAR | Weld County, CO | Oil & Gas Property | Feb 2024 |
| 237 | SIDWELL | Weld County, CO | Oil & Gas Property | Dec 2015 |
| 238 | SIEBRING | Weld County, CO | Oil & Gas Property | Jan 2024 |
| 239 | SIERRA M | Arapahoe County, CO | Oil & Gas Property | Feb 2024 |
| 240 | SIEVERS | Weld County, CO | Oil & Gas Property | May 2023 |
| 241 | SIEVERS | Weld County, CO | Oil & Gas Property | Sep 2020 |
| 242 | SIGG | Weld County, CO | Oil & Gas Property | Feb 2024 |
| 243 | SILT VALLEY | Garfield County, CO | Oil & Gas Property | Feb 2024 |
| 244 | SILVA | Weld County, CO | Oil & Gas Property | Aug 2019 |
| 245 | SILVERTON 5 | Weld County, CO | Oil & Gas Property | Feb 2024 |
| 246 | SIMINOE | Mesa County, CO | Oil & Gas Property | Jul 2017 |
| 247 | SIMMONS | Yuma County, CO | Gas Property | Feb 2024 |
| 248 | SIMMONS | Yuma County, CO | Gas Property | Mar 2024 |
| 249 | SIMMONS | Weld County, CO | Oil & Gas Property | Feb 2023 |
| 250 | SIMMONS | La Plata County, CO | Gas Property | Feb 2024 |
| 251 | SIMMS | La Plata County, CO | Gas Property | Feb 2024 |
| 252 | SIMON LAND & CATTLE | La Plata County, CO | Gas Property | Feb 2024 |
| 253 | SIMONSEN | Weld County, CO | Oil & Gas Property | Feb 2024 |
| 254 | SIMONSEN-SCHAEFER 7 | Weld County, CO | Oil & Gas Property | Feb 2024 |
| 255 | SIMPSON | Adams County, CO | Oil & Gas Property | Dec 2023 |
| 256 | SIMPSON | Weld County, CO | Oil & Gas Property | Feb 2024 |
| 257 | SIMPSON | Weld County, CO | Oil & Gas Property | Feb 2024 |
| 258 | SIMPSON 2 | Moffat County, CO | Gas Property | Feb 2024 |
| 259 | SIMPSON MD 2 | Boulder County, CO | Oil & Gas Property | Jan 2021 |
| 260 | SINDT 1 | Logan County, CO | Oil Property | Feb 2024 |
| 261 | SINGER E 34 | Weld County, CO | Oil & Gas Property | Aug 2016 |
| 262 | SINGLE EAGLE | San Miguel County, CO | Oil & Gas Property | Nov 2023 |
| 263 | SINJIN | Weld County, CO | Oil & Gas Property | Feb 2024 |
| 264 | SIRIOS BROTHERS | Weld County, CO | Oil & Gas Property | Aug 2015 |
| 265 | SITTON FEDERAL | La Plata County, CO | Gas Property | Feb 2024 |
| 266 | SITZMAN | Weld County, CO | Oil & Gas Property | Dec 2017 |
| 267 | SITZMAN | Weld County, CO | Oil & Gas Property | May 2017 |
| 268 | SITZMAN | Weld County, CO | Oil & Gas Property | Oct 2016 |
| 269 | SITZMAN | Weld County, CO | Oil & Gas Property | Apr 2013 |
| 270 | SKAER | Larimer County, CO | Oil & Gas Property | Jun 2017 |
| 271 | SKI 3 | Rio Blanco County, CO | Oil Property | Apr 2009 |
| 272 | SKIM | Weld County, CO | Oil & Gas Property | Feb 2024 |
| 273 | SKIM STATE | Weld County, CO | Oil & Gas Property | Feb 2024 |
| 274 | SKINNER RIDGE | Garfield County, CO | Oil & Gas Property | Feb 2024 |
| 275 | SKR 59 | Garfield County, CO | Oil & Gas Property | Feb 2024 |
| 276 | SKR 698 | Garfield County, CO | Oil & Gas Property | Feb 2024 |
| 277 | SKURICH | Weld County, CO | Oil & Gas Property | Mar 2019 |
| 278 | SKY RANCH 4-65 | Arapahoe County, CO | Oil & Gas Property | Feb 2024 |
| 279 | SKYWAY | Weld County, CO | Oil & Gas Property | Aug 2019 |
| 280 | SLANOVICH | Fremont County, CO | Oil Property | Oct 2022 |
| 281 | SLATER | Weld County, CO | Oil & Gas Property | Jun 2018 |
| 282 | SLEDGE C 9 | Weld County, CO | Oil & Gas Property | Sep 2016 |
| 283 | SLEEPING UTE | Montezuma County, CO | Oil & Gas Property | Feb 2024 |
| 284 | SLICK ROCK | Weld County, CO | Oil & Gas Property | Feb 2024 |
| 285 | SLUGGER | La Plata County, CO | Gas Property | Feb 2024 |
| 286 | SLW GREEN STATE BB 18 | Weld County, CO | Oil & Gas Property | Jan 2021 |
| 287 | SLW RANCH | Weld County, CO | Oil & Gas Property | Feb 2024 |
| 288 | SLW STATE | Weld County, CO | Oil & Gas Property | Jun 2021 |
| 289 | SMALL | Washington County, CO | Gas Property | Feb 2024 |
| 290 | SMALL EYED | Weld County, CO | Oil & Gas Property | Feb 2024 |
| 291 | SMART | Logan County, CO | Oil & Gas Property | Feb 2009 |
| 292 | SMITH | Yuma County, CO | Oil & Gas Property | Feb 2024 |
| 293 | SMITH | Weld County, CO | Oil & Gas Property | Sep 2016 |
| 294 | SMITH 2 | Yuma County, CO | Gas Property | Feb 2024 |
| 295 | SMITH FEDERAL | La Plata County, CO | Gas Property | Feb 2024 |
| 296 | SMITH STATE LD12-7 | Weld County, CO | Oil & Gas Property | Feb 2024 |
| 297 | SMITH-WOLTER | La Plata County, CO | Gas Property | Feb 2024 |
| 298 | SMITS | Weld County, CO | Oil & Gas Property | Apr 2020 |
| 299 | SNIFF | Bent County, CO | Oil & Gas Property | Feb 2024 |
| 300 | SNOOK | La Plata County, CO | Gas Property | Feb 2024 |