Assessment of continuous oil and gas resources in the Upper Cretaceous Niobrara Formation in the Southwestern Wyoming Province, Wyoming and Colorado, 2024
June 11, 2025
 Using a geology-based assessment methodology, the U.S. Geological Survey estimated undiscovered, technically recoverable mean continuous resources of 703 million barrels of oil and 5.8 trillion cubic feet of gas in the Niobrara Formation in the Southwestern Wyoming Province, Wyoming and Colorado.
Citation Information
| Publication Year | 2025 |
|---|---|
| Title | Assessment of continuous oil and gas resources in the Upper Cretaceous Niobrara Formation in the Southwestern Wyoming Province, Wyoming and Colorado, 2024 |
| DOI | 10.3133/fs20253025 |
| Authors | Kira Timm, Christopher Schenk, Jane Hearon, Thomas Finn, Sarah Gelman, Cheryl Woodall, Tracey J. Mercier, Andrea Cicero, Ronald M. Drake, Geoffrey Ellis, Michael Gardner, Benjamin Johnson, Jenny Lagesse, Phuong A. Le, Heidi M. Leathers-Miller, Scott Young |
| Publication Type | Report |
| Publication Subtype | USGS Numbered Series |
| Series Title | Fact Sheet |
| Series Number | 2025-3025 |
| Index ID | fs20253025 |
| Record Source | USGS Publications Warehouse |
| USGS Organization | Central Energy Resources Science Center |
Related
United States Assessments of Undiscovered Oil and Gas Resources
USGS Energy Resources Program provides periodic assessments of the oil and natural gas endowment of the United States and the World. This website provides access to new, prioritized, assessment results and supporting data for the United States, as part of the Energy Policy and Conservation Act (EPCA).
Southwestern Wyoming Oil and Gas Assessments
The U.S. Geological Survey completed the following assessments of undiscovered oil and gas potentional of the Southwestern Wyoming Province 5037 of southwestern Wyoming, northwestern Colorado, and northeastern Utah.
USGS National and Global Oil and Gas Assessment Project - Southwestern Wyoming Province, Niobrara Formation Continuous Assessment Unit Boundaries, Assessment Input Data, and Fact Sheet Data Tables USGS National and Global Oil and Gas Assessment Project - Southwestern Wyoming Province, Niobrara Formation Continuous Assessment Unit Boundaries, Assessment Input Data, and Fact Sheet Data Tables
This data release contains the boundaries of assessment units and input data for the assessment of undiscovered continuous oil and gas resources in upper Cretaceous Niobrara formation in the Southwestern Wyoming Province, Colorado and Wyoming. The Assessment Unit is the fundamental unit used in the National Assessment Project for the assessment of undiscovered oil and gas resources. The...
Sarah Gelman
Geologist (Basin Modeler)
Geologist (Basin Modeler)
Email
Phone
Geoffrey S Ellis
Research Geologist
Research Geologist
Email
Phone
Michael Gardner (Former Employee)
Research Geologist (Sedimentologist)
Research Geologist (Sedimentologist)
Benjamin Johnson
Assessment Geologist
Assessment Geologist
Email
Phone
Jenny LaGesse
Assessment Geologist
Assessment Geologist
Email
Phone
Phuong A Le
IT Specialist (Data Management)
IT Specialist (Data Management)
Email
Phone
Heidi Leathers-Miller
Petroleum Engineer
Petroleum Engineer
Phone
Related
United States Assessments of Undiscovered Oil and Gas Resources
USGS Energy Resources Program provides periodic assessments of the oil and natural gas endowment of the United States and the World. This website provides access to new, prioritized, assessment results and supporting data for the United States, as part of the Energy Policy and Conservation Act (EPCA).
Southwestern Wyoming Oil and Gas Assessments
The U.S. Geological Survey completed the following assessments of undiscovered oil and gas potentional of the Southwestern Wyoming Province 5037 of southwestern Wyoming, northwestern Colorado, and northeastern Utah.
USGS National and Global Oil and Gas Assessment Project - Southwestern Wyoming Province, Niobrara Formation Continuous Assessment Unit Boundaries, Assessment Input Data, and Fact Sheet Data Tables USGS National and Global Oil and Gas Assessment Project - Southwestern Wyoming Province, Niobrara Formation Continuous Assessment Unit Boundaries, Assessment Input Data, and Fact Sheet Data Tables
This data release contains the boundaries of assessment units and input data for the assessment of undiscovered continuous oil and gas resources in upper Cretaceous Niobrara formation in the Southwestern Wyoming Province, Colorado and Wyoming. The Assessment Unit is the fundamental unit used in the National Assessment Project for the assessment of undiscovered oil and gas resources. The...
Sarah Gelman
Geologist (Basin Modeler)
Geologist (Basin Modeler)
Email
Phone
Geoffrey S Ellis
Research Geologist
Research Geologist
Email
Phone
Michael Gardner (Former Employee)
Research Geologist (Sedimentologist)
Research Geologist (Sedimentologist)
Benjamin Johnson
Assessment Geologist
Assessment Geologist
Email
Phone
Jenny LaGesse
Assessment Geologist
Assessment Geologist
Email
Phone
Phuong A Le
IT Specialist (Data Management)
IT Specialist (Data Management)
Email
Phone
Heidi Leathers-Miller
Petroleum Engineer
Petroleum Engineer
Phone