Crude oil is highly inflammable and has immense energy. However, to make maximum use of it, crude oil is refined into petroleum products.

The main products after refining crude oil are petrol, liquid petroleum gas, kerosene, diesel, gas oil and fuel oil.

Various petrochemical end products are also formed which includes plastics, detergents and chemical fertilizers, lubricants, insecticides and perfumes, building materials, paints, medicines and to generate electricity.