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Information on subsurface data, mineral compositions/amounts, in the Appalachian Basin black shales
Number of producing gas wells in each state from 1989 to 2012, includes downloadable excel charts and graph options.
Site includes data and information on remaining oil and gas reserves in the U.S., includes downloadable graphs, PDFs, and Excel charts. Summary:...
USGS site which holds information about surface water and subsurface water in the United States. Includes: constantly-updated maps, maps predicting...