National Oil and Gas Assessment

The U.S. Geological Survey completed the following assessments of undiscovered oil and gas resources of the Denver Basin Province 5039 in Colorado, Kansas, Nebraska, South Dakota, and Wyoming.

The U.S. Geological Survey completed the following assessments of undiscovered oil and gas resources of the Wyoming Thrust Belt Province 5036 in Wyoming, Idaho, and Utah.

The U.S. Geological Survey completed the following assessments of undiscovered oil and gas potential of the Bighorn Basin Province 5034.

The U.S. Geological Survey completed the following assessments of undiscovered oil and gas resource potential of the Hanna, Laramie, and Shirley Basins Province 5030 in Wyoming and northeastern Colorado.

The U.S. Geological Survey completed the following assessments of undiscovered oil and gas resources of the North-Central Montana and Williston Basin Provinces 5028 of central Montana and western North Dakota.

The U.S. Geological Survey completed the following assessments of undiscovered oil and gas resources of the San Juan Basin Province of northwestern New Mexico and southwestern Colorado 5022.

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 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.