Answer:
To give Standard Oil an edge over its competitors, Rockefeller secretly arranged for discounted shipping rates from railroads. The railroads carried crude oil to Standard's refineries in Cleveland and kerosene to the big city markets.To give Standard Oil an edge over its competitors, Rockefeller secretly arranged for discounted shipping rates from railroads. The railroads carried crude oil to Standard's refineries in Cleveland and kerosene to the big city markets.
Step-by-step explanation: