File:Production of oil shale.pngFile:Production of oil shale.svg is a vector version of this file. It should be used in place of this PNG file when not inferior. File:Production of oil shale
File:Hubbert world 2004.svgPublic domain document "Strategic Significance of America s Oil Shale Resource Volume I Assessment of Strategic Issues": see [http://www.fossil.energy
File:1000px-Production of oil shale.pngEnglish applies to jurisdiction: United States of America determination method: work of the federal government of the United States determination method: SHA-1
File:Production of oil shale-ar.pngDescriptionProduction of oil shale-ar.png العربية: إنتاج الصخر الزيتي في الملايين من الطن المتري 1880-2010 English: Production of oil shale in millions of metric
File:Production of oil shale.svgEnglish applies to jurisdiction: United States of America determination method: work of the federal government of the United States
