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,
Ibo (Mozambique) Ibo (Mozambique) Ibo is one of the Quirimbas Islands in the Indian Ocean off northern Mozambique. It is part of Cabo Delgado Province. It grew as a Muslim trading port. Vasco da Gama reportedly rested on the island in 1502. The island was fortified in 1609 by the Portuguese. In the late eighteenth century, Portuguese colonialists built the Fort of São João, which still survives, and the town, as a slave port, became the second most important in the region after Mozambique Island. The island is now a far quieter place, known for its silversmiths. Ibo forms part of the