Williston Basin Oil and Gas Assessments

2013 Bakken and Three Forks Formation Assessment

2013 Bakken and Three Forks Formation Assessment

Using a geology-based assessment methodology, the U.S. Geological Survey estimated mean undiscovered volumes of 7.4 billion barrels of oil, 6.7 trillion cubic feet of associated/dissolved natural gas, and 0.53 billion barrels of natural gas liquids.

Fact Sheet 2013-3013

Williston Basin Assessments

The following are recent assessments of undiscovered oil and gas

2013 Bakken and Three Forks Assessment Factsheet

2008 Williston Basin Factsheet

1995 National Oil and Gas Assessment

Science Center Objects

The U.S. Geological Survey completed the following assessments of conventional and continuous oil and gas resources of the Devonian Three Forks Formation and Devonian and Mississippian Bakken Formation in the Williston Basin Province 5031 of North Dakota, Montana, and South Dakota.