| Property Name | Property Location | Property Type | Most Recent Production | |
|---|---|---|---|---|
| 5101 | YONKEE | Campbell County, WY | Gas Property | May 2016 |
| 5102 | YORK | Campbell County, WY | Oil Property | Dec 2025 |
| 5103 | YORK 12-33-70 | Converse County, WY | Oil & Gas Property | Dec 2025 |
| 5104 | YORK 19-33-69 USA A TR20H | Converse County, WY | Oil & Gas Property | Dec 2025 |
| 5105 | YORK RANCH | Converse County, WY | Oil & Gas Property | Dec 2025 |
| 5106 | YOUCACHET 41 | Sheridan County, WY | Gas Property | Jun 2009 |
| 5107 | YOUNGSTOWN | Sweetwater County, WY | Oil & Gas Property | Jun 2023 |
| 5108 | YUKON 3229 | Campbell County, WY | Oil & Gas Property | Dec 2025 |
| 5109 | ZAGER | Weston County, WY | Oil & Gas Property | Dec 2025 |
| 5110 | ZELENC | Weston County, WY | Oil & Gas Property | Dec 2025 |
| 5111 | ZEOLITE FED | Sweetwater County, WY | Oil & Gas Property | Oct 2024 |
| 5112 | ZERBST | Niobrara County, WY | Oil & Gas Property | Dec 2025 |
| 5113 | ZERBST | Niobrara County, WY | Oil & Gas Property | Sep 2018 |
| 5114 | ZERBST | Niobrara County, WY | Oil & Gas Property | Dec 2025 |
| 5115 | ZERBST FE | Niobrara County, WY | Oil & Gas Property | Dec 2025 |
| 5116 | ZEUS FE | Campbell County, WY | Oil & Gas Property | Nov 2025 |
| 5117 | ZIEGLERS WASH | Lincoln County, WY | Oil & Gas Property | Dec 2025 |
| 5118 | ZIEGLERS WASH 1 | Lincoln County, WY | Oil & Gas Property | Dec 2025 |
| 5119 | ZIMMERMAN BUTTE | Hot Springs County, WY | Oil Property | May 2018 |
| 5120 | ZIMMERSCHIED | Crook County, WY | Oil Property | Jul 2021 |
| 5121 | ZOE DRAW | Campbell County, WY | Oil Property | Dec 2008 |
| 5122 | ZUCINNI CS FED | Campbell County, WY | Gas Property | Feb 2012 |
| 5123 | ZYSK FEDERAL 1-A | Campbell County, WY | Oil & Gas Property | Dec 2025 |