Pakistan State Oil (); reporting name: PSO) is a Karachi-based Pakistani state-owned petroleum corporation involved in marketing and distribution of petroleum products. It has a network of 3,689 petroleum filling stations, out of which 3500 outlets serve the public retail sector and 189 outlets serve wholesale bulk customers. Pakistan State Oil is Pakistan's largest fuel marketing company. Company overview PSO controls a market share of over 60% of the total oil market with customer portfolio including dealers, government agencies, autonomous bodies, independent power projects and other corporate customers. It is involved in import, storage, distribution and marketing of a range of petroleum products including gasoline, diesel, fuel oil, jet fuel, LPG, CNG and petrochemicals. It was founded on December 30, 1976, after Pakistan's government took over the management of Pakistan National Oil (PNO) and Dawood Petroleum Limited, Esso Eastern and renamed into POCL (Premier Oil Company Limited) for marketing of Petroleum Products. PSO is the first public company in Pakistan to pass the PKR 1 trillion revenue mark. Pakistan State Oil has been a member of the prestigious World Economic Forum since 2003.Its primary listing is on the Pakistan Stock Exchange. The State-owned Pakistan State Oil Co. has 3,500 petrol pumps. Where as Cnergyico has 982 petrol pumps, Total Parco Pakistan Ltd. has 800 petrol pumps and Shell Pakistan Ltd. has 766 petrol pumps. The PSO posted 86 billion rupees of net profit in 2021-22 financial year.However in 2020-21 PSO profit was 30 billion rupees.In the financial year ended 2021-22 thanks to all time high petroleum imports of US 19 billion dollars for Pakistan the oil giant managed to up 196% of profits from last year.PSO profit 86 billion rupees History The creation of Pakistan State Oil (PSO) can be traced back to the year 1974, when on January 1; the government took over and merged National Oil (PNO) and Dawood Petroleum Limited (DPL) as Premiere Oil Company Limited (POCL). Soon after that, on 3 June 1974, Petroleum Storage Development Corporation (PSDC) came into existence. PSDC was then renamed as State Oil Company Limited (SOCL) on August 23, 1976. Following that, the Esso undertakings were purchased on 15 September 1976 and control was vested in SOCL. The end of that year (30 December 1976) saw the merger of the Premier Oil Company Limited and State Oil Company Limited, giving way to Pakistan state Oil (PSO). After PSO's inception, the corporate