R850-22-200. Classification of Bituminous-Asphaltic Sands and Oil Shale

1. The term "bituminous-asphaltic sands" means rock or sand impregnated with asphalt or heavy oil and is synonymous with the term "tar sands." This category does not cover any substances, either combustible or non-combustible, which are produced in a gaseous or rarefied state at ordinary temperature and pressure conditions other than gas which results from artificial introduction of heat. Nor does this category embrace any liquid hydrocarbon substance which occurs naturally in a liquid form in the earth regardless of depth, including drip gasoline or other natural condensate recovered from gas. The bituminous-asphaltic sands category does not include coal, oil shale, or gilsonite.

2. The oil shale category shall include any sedimentary rock containing kerogen.