National Oil and Gas Assessment

The U.S. Geological Survey completed the following assessments of undiscovered oil and gas resources of the Paradox Basin Province of Utah, Colorado, New Mexico and Arizona 5021.

The U.S. Geological Survey (USGS) has conducted a number of geology-based assessments of undiscovered oil and gas resources in the Uinta-Piceance Basin (USGS Province 5020) of western Colorado and Eastern Utah. Recent assessments include.

The U.S. Geological Survey completed the following assessments of undiscovered oil and gas potential of the Eastern Great Basin Province of eastern Nevada, western Utah, southeastern Idaho, and northwestern Arizona 5019.

The U.S. Geological Survey completed the following assessments of undiscovered continuous oil and gas resources of the Monterey Formation, San Joaquin Basin Province 5010.

The U.S. Geological Survey completed the following assessments of undiscovered natural gas resources of the Sacramento Basin Province of California 5008.

In 2006, the U.S. Geological Survey (USGS) completed the following assessments of undiscovered gas resources of the Eastern Oregon and Washington Province 5005.

The U.S. Geological Survey completed the following assessments of undiscovered oil and gas resources of the Western Oregon and Washington Province 5004.

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.

The USGS has conducted several assessments of undiscovered oil and gas in formations in the Permian Basin of western Texas. This inlcudes the following.

The Alaska Petroleum Systems project has three main objectives: (A) conduct research that increases our understanding of Alaska petroleum systems, (B) conduct assessments of undiscovered oil and gas resources, and (C) deliver energy-resource information to land and resource managers, policy makers, and the public.

The USGS has conducted numerous assessments of undiscovered oil and gas in the Appalachian Basin, including studies of the Marcellus Shale. The region extends from Alabama to Maine. The following is an overview of the assessments.