Economy of Nigeria imports a significant amount of food to sustain itself. However, efforts are being made towards making the country food sufficient again. Nigeria's proven oil reserves are estimated to be ; natural gas reserves are well over . Nigeria is a member of the Organization of Petroleum Exporting Countries (OPEC). The types of crude oil exported by Nigeria are Bonny light oil, Forcados crude oil, Qua Ibo crude oil and Brass River crude oil. Poor corporate relations with indigenous communities, vandalism of oil infrastructure, severe ecological damage, and personal security problems throughout the Niger Delta oil-producing region continue to plague Nigeria's
Nun River Nun River The Nun River is a river in Rivers State, Nigeria. The Nun is formed when the Niger River splits in two, forming the Nun and Forcados rivers. Upon emerging from its parent river, Niger, the Nun River flows for almost south to the Gulf of Guinea at Akassa. Its course runs mainly through thinly settled areas and swamps. In the 19th century, the Nun was a hub for trade between the Igbo Kingdom, which was based at Aboh, and Europe. The river's trading history began with the trade of slaves but was later replaced by palm oil export.