Crude oil components are separated by
The components of crude oil are petrol, tar, oil, dissolved gases and kerosene also known aspetroleum. c) Residue Further processed into refinery fuels, heavy fuel oil, waxes, greases, asphalts [the lighter the stuff the higher the price] Crude oil fractions separated by distillation are passed on for subsequent processing into numerous products, ranging from gasoline and diesel fuel to heating oil to asphalt. Given the pattern of modern demand (which tends to be highest for transportation fuels such as gasoline), the market value of a crude oil generally rises with increasing yields of light products.