| http://www.w3.org/ns/prov#value | - In 1976, the Federal Energy Agency, which administered EPAA, issued Ruling 1976-4 in response to inquiries with respect to the applicability of the [EPAA price and supply controls] to the so-called synthetic fuels (or crude oil substitutes) processed from oil shale, tar sands, coal, and other natural deposits that must be mined4 before the crude oil substitute can be extracted.
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