| 4901 | WORRIES | Weld County, CO | Oil & Gas Property | Jan 2024 |
| 4902 | WPF III | Weld County, CO | Oil & Gas Property | Oct 2017 |
| 4903 | WPX ENERGY GM | Garfield County, CO | Oil & Gas Property | Feb 2024 |
| 4904 | WPX ENERGY PA | Garfield County, CO | Oil & Gas Property | Feb 2024 |
| 4905 | WPX ENERGY R | Garfield County, CO | Oil & Gas Property | Feb 2024 |
| 4906 | WPX GM | Garfield County, CO | Oil & Gas Property | Feb 2024 |
| 4907 | WRD FEDERAL | Rio Blanco County, CO | Oil & Gas Property | Feb 2024 |
| 4908 | WRD UNIT | Rio Blanco County, CO | Oil & Gas Property | Feb 2024 |
| 4909 | WRD WYATT | Rio Blanco County, CO | Oil & Gas Property | Feb 2024 |
| 4910 | WRIGHT | Washington County, CO | Oil & Gas Property | Feb 2024 |
| 4911 | WRIGHT | Washington County, CO | Oil Property | Jan 2024 |
| 4912 | WRIGHT, CASTEEL AND SMALLWOOD SG | Garfield County, CO | Oil & Gas Property | Feb 2024 |
| 4913 | WRIGHT,SMALLWOOD CASTEEL SG | Garfield County, CO | Oil & Gas Property | Feb 2024 |
| 4914 | WRITEBOL | Logan County, CO | Oil & Gas Property | Feb 2024 |
| 4915 | WS-MAGNOLIA 3-5-5 | Weld County, CO | Oil & Gas Property | Feb 2024 |
| 4916 | WS-SANITATION | Weld County, CO | Oil & Gas Property | Feb 2024 |
| 4917 | WS-SUNRISE | Weld County, CO | Oil & Gas Property | Feb 2024 |
| 4918 | WUERTZ 12 | Weld County, CO | Oil & Gas Property | Jan 2024 |
| 4919 | WYMAN | Adams County, CO | Oil & Gas Property | Feb 2018 |
| 4920 | WYSCAVER | Weld County, CO | Oil & Gas Property | Nov 2018 |
| 4921 | XCEL | Weld County, CO | Oil & Gas Property | Feb 2024 |
| 4922 | XCEL | Weld County, CO | Oil & Gas Property | Aug 2019 |
| 4923 | XENIA WEST | Washington County, CO | Oil & Gas Property | Jan 2024 |
| 4924 | YA 4 | Montezuma County, CO | Oil & Gas Property | Feb 2024 |
| 4925 | YA 5 | Montezuma County, CO | Oil & Gas Property | Feb 2024 |
| 4926 | YA 6 | Montezuma County, CO | Oil & Gas Property | Feb 2024 |
| 4927 | YAKLICH | Weld County, CO | Oil & Gas Property | Apr 2018 |
| 4928 | YAMAGUCHI | Weld County, CO | Oil & Gas Property | May 2020 |
| 4929 | YANKEE FEDERAL | La Plata County, CO | Gas Property | Feb 2024 |
| 4930 | YATER | Garfield County, CO | Oil & Gas Property | Feb 2024 |
| 4931 | YB 4 | Montezuma County, CO | Oil & Gas Property | Feb 2024 |
| 4932 | YC 4 | Montezuma County, CO | Oil & Gas Property | Feb 2024 |
| 4933 | YCO 1 | Yuma County, CO | Gas Property | Feb 2024 |
| 4934 | YD 4 | Montezuma County, CO | Oil & Gas Property | Feb 2024 |
| 4935 | YE 6 | Montezuma County, CO | Oil & Gas Property | Feb 2024 |
| 4936 | YELLOW 3-64 30-2 | Adams County, CO | Oil & Gas Property | Jan 2024 |
| 4937 | YELLOW CREEK | Rio Blanco County, CO | Oil & Gas Property | Feb 2024 |
| 4938 | YELLOWHAMMER | Weld County, CO | Oil & Gas Property | Feb 2024 |
| 4939 | YELLOWSTONE | Lincoln County, CO | Oil & Gas Property | Feb 2024 |
| 4940 | YENTER | Logan County, CO | Oil Property | Dec 2013 |
| 4941 | YENTER | Yuma County, CO | Gas Property | Feb 2024 |
| 4942 | YENTER | Yuma County, CO | Oil & Gas Property | Feb 2024 |
| 4943 | YF 3 | Montezuma County, CO | Oil & Gas Property | Feb 2024 |
| 4944 | YOCAM | Weld County, CO | Oil & Gas Property | Sep 2021 |
| 4945 | YOUBERG | Garfield County, CO | Oil & Gas Property | Feb 2024 |
| 4946 | YOUBERG | Garfield County, CO | Oil & Gas Property | Feb 2024 |
| 4947 | YOUNG | Washington County, CO | Gas Property | Feb 2024 |
| 4948 | YOUNG | Weld County, CO | Oil & Gas Property | May 2022 |
| 4949 | YOUNG | Washington County, CO | Oil & Gas Property | Jan 2024 |
| 4950 | YOUNG 01N-65W-28 | Weld County, CO | Oil & Gas Property | Dec 2022 |
| 4951 | YOXALL FARMS | Weld County, CO | Oil & Gas Property | Aug 2023 |
| 4952 | YUMA 5 STATE | Yuma County, CO | Gas Property | Feb 2024 |
| 4953 | YUMA COUNTY OIL CO | Yuma County, CO | Gas Property | Feb 2024 |
| 4954 | YWAM | Las Animas County, CO | Gas Property | Feb 2024 |
| 4955 | ZABKA | Weld County, CO | Oil & Gas Property | Apr 2018 |
| 4956 | ZABKA K 2 | Weld County, CO | Oil & Gas Property | Dec 2020 |
| 4957 | ZACH C 11 | Weld County, CO | Oil & Gas Property | Sep 2016 |
| 4958 | ZADEL | Weld County, CO | Oil & Gas Property | Nov 2023 |
| 4959 | ZAHOUREK | Weld County, CO | Oil & Gas Property | Feb 2019 |
| 4960 | ZARLENGO | Adams County, CO | Oil & Gas Property | Jan 2024 |
| 4961 | ZARLENGO | Weld County, CO | Oil & Gas Property | Apr 2017 |
| 4962 | ZEEK | Weld County, CO | Oil & Gas Property | Apr 2017 |
| 4963 | ZEILER | Weld County, CO | Oil & Gas Property | Aug 2023 |
| 4964 | ZELDA 25 | Weld County, CO | Oil & Gas Property | Feb 2024 |
| 4965 | ZELLITTI | La Plata County, CO | Gas Property | Feb 2024 |
| 4966 | ZIEGLER | Logan County, CO | Oil & Gas Property | Feb 2024 |
| 4967 | ZIEMER | Weld County, CO | Oil & Gas Property | Feb 2024 |
| 4968 | ZIMMERMAN | Weld County, CO | Oil & Gas Property | Feb 2022 |
| 4969 | ZIMMERMAN 33 | Garfield County, CO | Oil & Gas Property | Jan 2024 |
| 4970 | ZIMMERMAN/CHAMBERLIN 1 | Moffat County, CO | Oil & Gas Property | Feb 2024 |
| 4971 | ZION | Yuma County, CO | Gas Property | Feb 2024 |
| 4972 | ZISCH | Weld County, CO | Oil & Gas Property | Jan 2024 |
| 4973 | ZUEGE | Yuma County, CO | Gas Property | Feb 2024 |
| 4974 | ZWIRN | Yuma County, CO | Gas Property | Feb 2024 |
| 4975 | ZWIRN | Yuma County, CO | Gas Property | Feb 2024 |