 After World War II the Port of Antwerp was expanded and on its premises several chemical factories and oil refineries were established, such as Bayer, BASF, Monsanto Company.The chemical and petrochemical industry is widely represented in the port region and comprises the world's second largest cluster of petrochemical industry, next to Houston (United States).In 1967 "Amoco Chemical Belgium N.V.", now BP, was founded in Geel.