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PAKISTAN STATE OIL
It is a Karachi-based Pakistani state-owned multinational petroleum corporation involved in marketing and distribution of petroleum products, being a definite on the top oil companies list. It was founded on December 30, 1976, after Pakistan’s government took over the management of Pakistan National Oil (PNO) and Dawood Petroleum Limited and renamed into POCL (Premier Oil Company Limited) under marketing of Petroleum Products. Based on its business performance, Pakistan State Oil (PSO) was listed among the world’s biggest publicly traded companies on Forbes 2000 list in FY2014.