Assessment of Undiscovered Oil and Gas Resources of the Illinois Basin, 2007

August 21, 2007

Using a geology-based assessment methodology, the U.S. Geological Survey estimated the following quantities of undiscovered, technically recoverable
oil and gas resources in the Illinois Basin, USA: (1) a mean of 214 million barrels of oil; (2) a mean of 4.65 trillion cubic feet of natural gas; and (3) a mean of 24 million barrels of natural gas liquids.

Publication Year	2007
Title	Assessment of Undiscovered Oil and Gas Resources of the Illinois Basin, 2007
DOI	10.3133/fs20073058
Authors	Christopher S. Swezey
Publication Type	Report
Publication Subtype	USGS Numbered Series
Series Title	Fact Sheet
Series Number	2007-3058
Index ID	fs20073058
Record Source	USGS Publications Warehouse
USGS Organization	U.S. Geological Survey

Assessment of Undiscovered Oil and Gas Resources of the Illinois Basin, 2007

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