For any railroad, the prospect of steady shipments was irresistible, for they could dispatch trains composed solely of oil-tank cars instead of a motley assortment of freight cars picking up different products at different places. By consolidating many small shippers into one big shipper making regular, uniform shipments in massive quantities, the railroads could reduce the average round-trip time of their trains to New York from thirty days to ten and operate a fleet of 600 cars instead of 1,800.
