An Aramco report released yesterday revealed the real production capacity of the Saudi Ghawar oil field, the world’s largest at 3.8 million bpd, well below the 5 million bpd widely known in the oil market. Ghawar’s production capacity suggested in the report is 33% less than the U.S. government estimations in 2017 when the U.S. Energy Information Administration listed Ghawar’s production capacity at 5.8 million bpd. Also, the new figure puts the U.S. Permian oil production basin as the largest world’s producer since it pumped 4.1 million bpd in March.