Show MARKETING OIL SHALE PRODUCTS under the best possible conditions because of the capital and construction work required it will be many years before an oil shale industry begins to assume the magnitude b of the present petrol petroleum euni industry in this country and therefore nia many 11 y years before shale products are extensively marketed is the opinion of martin J gavin refinery engineer of the united states bureau of mines mr gavin does not believe that shale oil prod products acts wll will ever be serious competitors of petroleum products product s shale oil may be expected gradually to replace petro petroleum leuin as the petroleum supply fails it seeni seems s likely therefore that shale oil p products ro when they are marketed in considerable quantity will be marketed through the present systems and under the conditions aw used in marketing petroleum |