| 5301 | WPX ENERGY R | Garfield County, CO | Oil & Gas Property | May 2025 |
| 5302 | WPX GM | Garfield County, CO | Oil & Gas Property | May 2025 |
| 5303 | WRD FEDERAL | Rio Blanco County, CO | Oil & Gas Property | Mar 2024 |
| 5304 | WRD UNIT | Rio Blanco County, CO | Oil & Gas Property | Feb 2024 |
| 5305 | WRD WYATT | Rio Blanco County, CO | Oil & Gas Property | Feb 2024 |
| 5306 | WRIGHT | Washington County, CO | Oil Property | Apr 2025 |
| 5307 | WRIGHT | Washington County, CO | Oil & Gas Property | May 2025 |
| 5308 | WRIGHT | La Plata County, CO | Gas Property | May 2025 |
| 5309 | WRIGHT 33-5 | Archuleta County, CO | Gas Property | May 2025 |
| 5310 | WRIGHT, CASTEEL AND SMALLWOOD SG | Garfield County, CO | Oil & Gas Property | May 2025 |
| 5311 | WRIGHT,SMALLWOOD CASTEEL SG | Garfield County, CO | Oil & Gas Property | May 2025 |
| 5312 | WRITEBOL | Logan County, CO | Oil & Gas Property | May 2025 |
| 5313 | WS-MAGNOLIA 3-5-5 | Weld County, CO | Oil & Gas Property | May 2025 |
| 5314 | WS-SANITATION | Weld County, CO | Oil & Gas Property | May 2025 |
| 5315 | WS-SUNRISE | Weld County, CO | Oil & Gas Property | May 2025 |
| 5316 | WUERTZ 12 | Weld County, CO | Oil & Gas Property | May 2025 |
| 5317 | WYMAN | Adams County, CO | Oil & Gas Property | Nov 2018 |
| 5318 | WYSCAVER | Weld County, CO | Oil & Gas Property | Nov 2018 |
| 5319 | XAVIER | La Plata County, CO | Gas Property | May 2025 |
| 5320 | XCEL | Weld County, CO | Oil & Gas Property | Aug 2019 |
| 5321 | XCEL | Weld County, CO | Oil & Gas Property | May 2025 |
| 5322 | XENIA WEST | Washington County, CO | Oil & Gas Property | May 2025 |
| 5323 | YA 4 | Montezuma County, CO | Oil & Gas Property | Jun 2025 |
| 5324 | YA 5 | Montezuma County, CO | Oil & Gas Property | Jun 2025 |
| 5325 | YA 6 | Montezuma County, CO | Oil & Gas Property | Jun 2025 |
| 5326 | YA 7 | Montezuma County, CO | Oil & Gas Property | Jun 2025 |
| 5327 | YA 8 | Montezuma County, CO | Oil & Gas Property | Jun 2025 |
| 5328 | YAKLICH | Weld County, CO | Oil & Gas Property | Apr 2018 |
| 5329 | YAKUTAT | Washington County, CO | Gas Property | Aug 2020 |
| 5330 | YAMAGUCHI | Weld County, CO | Oil & Gas Property | May 2020 |
| 5331 | YANKEE FEDERAL | La Plata County, CO | Gas Property | May 2025 |
| 5332 | YATER | Garfield County, CO | Oil & Gas Property | May 2025 |
| 5333 | YB 4 | Montezuma County, CO | Oil & Gas Property | Jun 2025 |
| 5334 | YC 4 | Montezuma County, CO | Oil & Gas Property | Jun 2025 |
| 5335 | YCO 1 | Yuma County, CO | Gas Property | May 2025 |
| 5336 | YD 4 | Montezuma County, CO | Oil & Gas Property | Jun 2025 |
| 5337 | YE 6 | Montezuma County, CO | Oil & Gas Property | Jun 2025 |
| 5338 | YELLOW 3-64 30-2 | Adams County, CO | Oil & Gas Property | May 2025 |
| 5339 | YELLOW CREEK | Rio Blanco County, CO | Oil & Gas Property | May 2025 |
| 5340 | YELLOWHAMMER | Weld County, CO | Oil & Gas Property | May 2025 |
| 5341 | YELLOWSTONE | Lincoln County, CO | Oil & Gas Property | May 2025 |
| 5342 | YENTER | Yuma County, CO | Oil & Gas Property | May 2025 |
| 5343 | YENTER | Logan County, CO | Oil Property | Dec 2013 |
| 5344 | YENTER | Yuma County, CO | Gas Property | May 2025 |
| 5345 | YF 3 | Montezuma County, CO | Oil & Gas Property | Jun 2025 |
| 5346 | YOCAM | Weld County, CO | Oil & Gas Property | Sep 2021 |
| 5347 | YOUBERG | Garfield County, CO | Oil & Gas Property | May 2025 |
| 5348 | YOUBERG | Garfield County, CO | Oil & Gas Property | May 2025 |
| 5349 | YOUNG | Weld County, CO | Oil & Gas Property | Apr 2023 |
| 5350 | YOUNG | Washington County, CO | Gas Property | Jun 2025 |
| 5351 | YOUNG | Washington County, CO | Oil & Gas Property | May 2025 |
| 5352 | YOUNG 01N-65W-28 | Weld County, CO | Oil & Gas Property | Dec 2022 |
| 5353 | YOXALL FARMS | Weld County, CO | Oil & Gas Property | May 2025 |
| 5354 | YUMA 5 STATE | Yuma County, CO | Gas Property | Jun 2025 |
| 5355 | YUMA COUNTY OIL CO | Yuma County, CO | Gas Property | May 2025 |
| 5356 | YWAM | Las Animas County, CO | Gas Property | Jun 2025 |
| 5357 | ZABKA | Weld County, CO | Oil & Gas Property | Apr 2018 |
| 5358 | ZABKA K 2 | Weld County, CO | Oil & Gas Property | Dec 2020 |
| 5359 | ZACH C 11 | Weld County, CO | Oil & Gas Property | Sep 2016 |
| 5360 | ZADEL | Weld County, CO | Oil & Gas Property | Nov 2023 |
| 5361 | ZAHOUREK | Weld County, CO | Oil & Gas Property | Feb 2019 |
| 5362 | ZARLENGO | Weld County, CO | Oil & Gas Property | Apr 2017 |
| 5363 | ZARLENGO | Adams County, CO | Oil & Gas Property | Jun 2025 |
| 5364 | ZEEK | Weld County, CO | Oil & Gas Property | Apr 2017 |
| 5365 | ZEILER | Weld County, CO | Oil & Gas Property | Aug 2023 |
| 5366 | ZELDA 25 | Weld County, CO | Oil & Gas Property | May 2025 |
| 5367 | ZELLITTI | La Plata County, CO | Gas Property | May 2025 |
| 5368 | ZIEGLER | Logan County, CO | Oil & Gas Property | May 2025 |
| 5369 | ZIEMER | Weld County, CO | Oil & Gas Property | May 2025 |
| 5370 | ZIGGY USX AB 19-99HZ | Weld County, CO | Oil & Gas Property | May 2025 |
| 5371 | ZIMMERMAN | Weld County, CO | Oil & Gas Property | Feb 2022 |
| 5372 | ZIMMERMAN 33 | Garfield County, CO | Oil & Gas Property | May 2025 |
| 5373 | ZION | Yuma County, CO | Gas Property | May 2025 |
| 5374 | ZISCH | Weld County, CO | Oil & Gas Property | May 2025 |
| 5375 | ZUEGE | Yuma County, CO | Gas Property | May 2025 |
| 5376 | ZWIRN | Yuma County, CO | Gas Property | May 2025 |
| 5377 | ZWIRN | Yuma County, CO | Gas Property | May 2025 |