| 5201 | WINDSOR 35 | Weld County, CO | Oil & Gas Property | Nov 2018 |
| 5202 | WINDSOR LV | Weld County, CO | Oil & Gas Property | Feb 2025 |
| 5203 | WINGFIELD | Yuma County, CO | Gas Property | Feb 2025 |
| 5204 | WINGFIELD | Yuma County, CO | Gas Property | Feb 2025 |
| 5205 | WINTER | Weld County, CO | Oil & Gas Property | Oct 2005 |
| 5206 | WINTER | Weld County, CO | Oil & Gas Property | Apr 2017 |
| 5207 | WINTER FLATS | Mesa County, CO | Oil & Gas Property | Feb 2025 |
| 5208 | WINTER FLATS | Mesa County, CO | Oil & Gas Property | Nov 2024 |
| 5209 | WINTERS | Weld County, CO | Oil & Gas Property | Feb 2025 |
| 5210 | WIRKNER-VANCE | Weld County, CO | Oil & Gas Property | Feb 2025 |
| 5211 | WIRT | La Plata County, CO | Gas Property | Feb 2025 |
| 5212 | WIRT | La Plata County, CO | Gas Property | Feb 2025 |
| 5213 | WIRTH | Morgan County, CO | Oil & Gas Property | Oct 2004 |
| 5214 | WISE | Boulder County, CO | Oil & Gas Property | Jun 2022 |
| 5215 | WISHBONE | Weld County, CO | Oil & Gas Property | Feb 2025 |
| 5216 | WITHAM | Washington County, CO | Oil Property | Aug 2007 |
| 5217 | WITT | La Plata County, CO | Gas Property | Feb 2025 |
| 5218 | WITTE | Yuma County, CO | Gas Property | Feb 2025 |
| 5219 | WITTE | Yuma County, CO | Gas Property | Feb 2025 |
| 5220 | WITTENBERG | Washington County, CO | Oil Property | Jan 2025 |
| 5221 | WOLF | Weld County, CO | Oil & Gas Property | Feb 2025 |
| 5222 | WOLF | Weld County, CO | Oil & Gas Property | May 2019 |
| 5223 | WOLFE | Weld County, CO | Oil & Gas Property | Feb 2024 |
| 5224 | WOLFE | Weld County, CO | Oil & Gas Property | Dec 2018 |
| 5225 | WOLFE 33-7-22 | La Plata County, CO | Gas Property | Feb 2025 |
| 5226 | WOLFPACK | Weld County, CO | Oil & Gas Property | Feb 2025 |
| 5227 | WOLFSON | Weld County, CO | Oil & Gas Property | Sep 2024 |
| 5228 | WOLLERT | Bent County, CO | Oil & Gas Property | Feb 2025 |
| 5229 | WOMMER A | La Plata County, CO | Gas Property | Feb 2025 |
| 5230 | WOOD | Las Animas County, CO | Gas Property | Feb 2025 |
| 5231 | WOODS-SPANGLER | Mesa County, CO | Oil & Gas Property | Feb 2025 |
| 5232 | WOOLERY ROUNDTREE | Yuma County, CO | Oil & Gas Property | Feb 2025 |
| 5233 | WOOLLEY | Weld County, CO | Oil & Gas Property | Feb 2025 |
| 5234 | WOOLLEY BECKY 2 | Weld County, CO | Oil & Gas Property | Feb 2025 |
| 5235 | WORFORD GAS UNIT | La Plata County, CO | Gas Property | Feb 2025 |
| 5236 | WORLEY | Phillips County, CO | Gas Property | Aug 2022 |
| 5237 | WORRIES | Weld County, CO | Oil & Gas Property | Feb 2025 |
| 5238 | WP D0 | Logan County, CO | Oil & Gas Property | Jul 2010 |
| 5239 | WP- M00 | Logan County, CO | Oil & Gas Property | Jul 2010 |
| 5240 | WPF III | Weld County, CO | Oil & Gas Property | Oct 2017 |
| 5241 | WPX ENERGY GM | Garfield County, CO | Oil & Gas Property | Feb 2025 |
| 5242 | WPX ENERGY PA | Garfield County, CO | Oil & Gas Property | Feb 2025 |
| 5243 | WPX ENERGY R | Garfield County, CO | Oil & Gas Property | Feb 2025 |
| 5244 | WPX GM | Garfield County, CO | Oil & Gas Property | Feb 2025 |
| 5245 | WRD FEDERAL | Rio Blanco County, CO | Oil & Gas Property | Mar 2024 |
| 5246 | WRD UNIT | Rio Blanco County, CO | Oil & Gas Property | Feb 2024 |
| 5247 | WRD WYATT | Rio Blanco County, CO | Oil & Gas Property | Feb 2024 |
| 5248 | WRIGHT | Washington County, CO | Oil & Gas Property | Feb 2025 |
| 5249 | WRIGHT | La Plata County, CO | Gas Property | Feb 2025 |
| 5250 | WRIGHT | Washington County, CO | Oil Property | Feb 2025 |
| 5251 | WRIGHT 33-5 | Archuleta County, CO | Gas Property | Feb 2025 |
| 5252 | WRIGHT, CASTEEL AND SMALLWOOD SG | Garfield County, CO | Oil & Gas Property | Feb 2025 |
| 5253 | WRIGHT,SMALLWOOD CASTEEL SG | Garfield County, CO | Oil & Gas Property | Feb 2025 |
| 5254 | WRITEBOL | Logan County, CO | Oil & Gas Property | Feb 2025 |
| 5255 | WS-MAGNOLIA 3-5-5 | Weld County, CO | Oil & Gas Property | Feb 2025 |
| 5256 | WS-SANITATION | Weld County, CO | Oil & Gas Property | Feb 2025 |
| 5257 | WS-SUNRISE | Weld County, CO | Oil & Gas Property | Feb 2025 |
| 5258 | WUERTZ 12 | Weld County, CO | Oil & Gas Property | Feb 2025 |
| 5259 | WYMAN | Adams County, CO | Oil & Gas Property | Feb 2019 |
| 5260 | WYSCAVER | Weld County, CO | Oil & Gas Property | Nov 2018 |
| 5261 | XAVIER | La Plata County, CO | Gas Property | Feb 2025 |
| 5262 | XCEL | Weld County, CO | Oil & Gas Property | Feb 2025 |
| 5263 | XCEL | Weld County, CO | Oil & Gas Property | Aug 2019 |
| 5264 | XENIA WEST | Washington County, CO | Oil & Gas Property | Feb 2025 |
| 5265 | YA 4 | Montezuma County, CO | Oil & Gas Property | Mar 2025 |
| 5266 | YA 5 | Montezuma County, CO | Oil & Gas Property | Mar 2025 |
| 5267 | YA 6 | Montezuma County, CO | Oil & Gas Property | Mar 2025 |
| 5268 | YA 7 | Montezuma County, CO | Oil & Gas Property | Mar 2025 |
| 5269 | YA 8 | Montezuma County, CO | Oil & Gas Property | Mar 2025 |
| 5270 | YAKLICH | Weld County, CO | Oil & Gas Property | Apr 2018 |
| 5271 | YAKUTAT | Washington County, CO | Gas Property | Aug 2020 |
| 5272 | YAMAGUCHI | Weld County, CO | Oil & Gas Property | May 2020 |
| 5273 | YANKEE FEDERAL | La Plata County, CO | Gas Property | Feb 2025 |
| 5274 | YATER | Garfield County, CO | Oil & Gas Property | Feb 2025 |
| 5275 | YB 4 | Montezuma County, CO | Oil & Gas Property | Mar 2025 |
| 5276 | YC 4 | Montezuma County, CO | Oil & Gas Property | Mar 2025 |
| 5277 | YCO 1 | Yuma County, CO | Gas Property | Feb 2025 |
| 5278 | YD 4 | Montezuma County, CO | Oil & Gas Property | Mar 2025 |
| 5279 | YE 6 | Montezuma County, CO | Oil & Gas Property | Mar 2025 |
| 5280 | YELLOW 3-64 30-2 | Adams County, CO | Oil & Gas Property | Feb 2025 |
| 5281 | YELLOW CREEK | Rio Blanco County, CO | Oil & Gas Property | Feb 2025 |
| 5282 | YELLOW JACKET | Montezuma County, CO | Oil & Gas Property | Feb 2025 |
| 5283 | YELLOWHAMMER | Weld County, CO | Oil & Gas Property | Feb 2025 |
| 5284 | YELLOWSTONE | Lincoln County, CO | Oil & Gas Property | Mar 2025 |
| 5285 | YENTER | Logan County, CO | Oil Property | Dec 2013 |
| 5286 | YENTER | Yuma County, CO | Gas Property | Feb 2025 |
| 5287 | YENTER | Yuma County, CO | Oil & Gas Property | Feb 2025 |
| 5288 | YF 3 | Montezuma County, CO | Oil & Gas Property | Mar 2025 |
| 5289 | YG 1 | Montezuma County, CO | Oil & Gas Property | Mar 2025 |
| 5290 | YOCAM | Weld County, CO | Oil & Gas Property | Sep 2021 |
| 5291 | YOUBERG | Garfield County, CO | Oil & Gas Property | Feb 2025 |
| 5292 | YOUBERG | Garfield County, CO | Oil & Gas Property | Feb 2025 |
| 5293 | YOUNG | Washington County, CO | Gas Property | Feb 2025 |
| 5294 | YOUNG | Weld County, CO | Oil & Gas Property | Feb 2025 |
| 5295 | YOUNG | Washington County, CO | Oil & Gas Property | Feb 2025 |
| 5296 | YOUNG 01N-65W-28 | Weld County, CO | Oil & Gas Property | Dec 2022 |
| 5297 | YOXALL FARMS | Weld County, CO | Oil & Gas Property | Feb 2025 |
| 5298 | YUMA 5 STATE | Yuma County, CO | Gas Property | Feb 2025 |
| 5299 | YUMA COUNTY OIL CO | Yuma County, CO | Gas Property | Feb 2025 |
| 5300 | YWAM | Las Animas County, CO | Gas Property | Feb 2025 |