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File:Production of oil shale.png

Production_of_oil_shale.png ‎(525 × 341 pixels, file size: 14 KB, MIME type: image/png)

Summary

Description
English: Production of oil shale in millions of metric tons from 1880 to 2010
Date 2 September 2011
Source 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
( Reusing this file)

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."

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