Energy Resources Program
The main objective of the National Assessment of Oil and Gas Project is to assess the potential for undiscovered oil and natural gas resources of the onshore United States. The last comprehensive National Assessment was completed by the USGS in 1995, and since 2000 the USGS has been re-assessing basins of the U.S. that are considered to be priorities for oil and gas resources rather than assessing all of the basins of the U.S. These 32 basins represent about 97% of the discovered and undiscovered oil and gas resources of the United States. As each basin is re-assessed the assessment results are added to the tables, and these new values replace the assessment results from 1995.
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Conventional Oil and Gas Resources (PDF)
Continuous Oil and Gas Resources (Includes continuous oil, tight oil, shale gas, tight gas, and coalbed gas) (PDF)
Continuous Oil Resources (Includes continuous oil, tight oil, shale oil) (PDF)
Continuous Gas Resources (Includes coalbed gas, shale gas, tight gas) (PDF)
Coalbed Gas Resources (PDF)
Total Oil and Gas Resources (Sum of Conventional and Continuous Resources) (PDF)
Total Oil and Gas Resources Data Table (Excel)
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Page Last Modified: Monday, April 29, 2013