| http://www.w3.org/ns/prov#value | - It should not be confused with oil shale, which is shale rich in kerogen, or shale oil, which is oil produced from oil shales.[2][3] Therefore, the International Energy Agency recommends to use the term light tight oil for oil produced from shales or other very low permeability formations, while World Energy Resources 2013 report by the World Energy Council uses the term tight oil.[3][4]
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