Pakistan relies on both non-renewable and renewable resources for power generation. Non-renewable resources include coal, natural gas, crude oil, and liquefied petroleum gas. Coal is extracted through both surface mining and underground mining, and is used primarily for power generation as well as industries like cement, brick kilns and steel production. Natural gas and crude oil are extracted through drilling and are used for power generation, transportation fuel, and industrial processes. Electricity in Pakistan is generated by public sector utilities like WAPDA and K-Electric, as well as independent power producers. However, generation still falls short of demand, resulting in regular load shedding across the country.