PSO stands for Pakistan State Oil Company Limited. It is a Pakistan rooted oil marketing corporations. This Oil Company was incorporated on January 1, 1974 and was commenced on 30 December 1976. It is emerged in the distribution marketing field of many petroleum oil and lubricants merchandises and its additional products such as furnace oil, high speed diesel, motor gasoline, liquefied petroleum gas, petrochemicals and lubricants, kerosene and compressed natural gas. The company has more than 3,700 its own retail outlets and approximately 1,600 New Vision Retail Outlets which provides usual gas-station services, car wash, Internet kiosk, and other essentials for the Pakistani community. Company manages their massive circle of retail outlets from its central office Karachi, Pakistan. The postal and official address, email address and phone number (helpline) of Pso service center is given above. The helpline of Pso service center may or may not be toll free.