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).

Energy and Minerals Mission Area, Energy Resources Program, Central Energy Resources Science Center

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August 6, 2024

United States Assessments of Undiscovered Oil and Gas Resources

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Below are publications associated with this project.

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May 3, 2008

Areas of historical oil and gas exploration and production in the United States

This report contains maps and associated spatial data showing historical oil and gas exploration and production in the United States. Because of the proprietary nature of many oil and gas well databases, the United States was divided into cells one-quarter square mile and the production status of all wells in a given cell was aggregated. Base-map reference data are included, using the U.S. Geologi

Authors

Laura Biewick

Energy Resources Program, Central Energy Resources Science Center

March 1, 1995

1995 National Assessment of United States oil and gas resources: Results, methodology, and supporting data

This revised CD-ROM summarizes the results, released in 1995, of the 3-year study of the oil and gas resources of the onshore and state waters of the United States. Minor errors in the original DDS-30 (listed in DDS-35 and DDS-36) are corrected in this revised version and in the data files now released in DDS-35 and DDS-36. Estimates are made of technically recoverable oil, including measured (pro

Authors

Donald L. Gautier, Gordon Dolton, Kenneth I. Takahashi, Katharine L. Varnes

Energy Resources Program, Central Energy Resources Science Center

Overview

The U.S. Geological Survey completed the following assessments of undiscovered oil and gas potential of the Iowa Shelf Province (5052).