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Pennsylvania Spatial Data: Bituminous Coal Mine Permits
Bituminous coal mine permits in PA. -
KY Coal Thickness Database
This database contains data collected by KGS during field projects or compiled from reports prepared by other companies or agencies. The data in eastern Kentucky were primarily... -
U.S. Crude Oil and Natural Gas Proved Reserves
Site includes data and information on remaining oil and gas reserves in the U.S., includes downloadable graphs, PDFs, and Excel charts. Summary: In 2011, oil and gas exploration...