Oil and Gas - National Oil and Gas Assessment

U.S. Geological Survey
Fact Sheet 2007-3014
version 1.0

Assessment of Undiscovered Natural Gas Resources of the Sacramento Basin Province of California, 2006

By Allegra Hosford Scheirer, Marilyn E. Tennyson, Leslie B. Magoon, Ronald R. Charpentier, Troy A. Cook, Timothy R. Klett, Richard M. Pollastro, and Christopher J. Schenk


map of the Sacramento Basin with San Francisco Bay just outside the basin in the lower left and Lake Shasta just outside the basin at the top
The Sacramento Basin oil and gas province (heavy red line) covers an area of nearly 12,000 square miles and forms the northern part of California’s Central Valley. The province is bordered on the west by the Coast Ranges, on the north by the Klamath Mountains, on the east by the Sierra Nevada, and arbitrarily on the south by the Stanislaus-San Joaquin County line (thin red lines show county boundaries).

The U.S. Geological Survey (USGS) recently completed a new assessment of undiscovered natural gas resources of the Sacramento Basin Province of California. Using a geology-based assessment methodology, the USGS mean estimates of undiscovered, technically recoverable resources are 534 billion cubic feet of natural gas and 323 thousand barrels of natural gas liquids in the Sacramento Basin Province. Additional undiscovered oil accumulations larger than 0.5 million barrels are considered unlikely.

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For questions about the content of this report, contact Allegra Hosford Scheirer

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