SAMREF is a complex refinery which was formed in 1981 for the development, construction, ownership and operation of crude oil refining facilities in Yanbu, Saudi Arabia. Following the construction and start-up of the facilities, it commenced operations on November 15, 1984. The design capacity was 263,000 barrels per day of Arab Light Crude, but through a continuous improvement of its facilities, it now processes about 402,000 barrels per day.