Petroleum industry in Nigeria to transport the crude oil. Also because of the lack of highly productive fields, money from the jointly operated (with the federal government) companies is constantly directed towards petroleum exploration and production. Nigeria's petroleum is classified mostly as "light" and "sweet", as the oil is largely free of sulphur. Nigeria is the largest producer of sweet oil in OPEC. This sweet oil is similar in composition to petroleum extracted from the North Sea. This crude oil is known as "Bonny light". Names of other Nigerian crudes, all of which are named according to export terminal, are Qua Ibo, Escravos blend,
Kingdom of Bonny important in the 15th century with the arrival of the Portuguese and the growth of the Atlantic slave trade. At its height of power, Bonny was one of the main entrepôts on the Slave Coast. Later the Dutch and then the British took control of the slave trade in the region, with the British renaming the port "Bonny". When the British passed an act to abolish the slave trade in 1807, the port turned to export of palm oil products, ivory and Guinea pepper. William Dappa Pepple I ascended the throne in 1830. He became increasingly incompetent, particularly following a