Image: Production of oil shale

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Description: Production of oil shale in millions of metric tons from 1880 to 2010
Title: Production of oil shale
Credit: Original file from the United States Geological Survey report (http://pubs.usgs.gov/sir/2005/5294/pdf/sir5294_508.pdf); updated by Alan Burnham and Pierre Allix and published in the Schlumberg Oilfield Review Volume 22, Issue 4, publication date 12/01/2010 (http://www.slb.com/~/media/Files/resources/oilfield_review/ors10/win10/coaxing.ashx). The graph with permissions is sent to me by Alan Burnham by e-mail
Author: United States Geological Survey; Alan K. Burnham; Pierre Allix
Permission: Permission to use this graph is granted by Alan Burnham. The e-mail sent by Alan Burnham to me says: "It is not copyrighted—I made it specifically for wide use."
Usage Terms: Public domain
License: Public domain
Attribution Required?: No

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History of the oil shale industry

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