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
Brass River vessels of draft. It was often used by merchant steamers trading on the Niger, since the entrance of the Brass was easier than that of the Nun. Many factories lay on the east shore of the Brass just inside the entrance, handling the extensive trade in palm oil and ivory. At that time Akedo, about above cape Nun, was the market place for traders from the Brass river. The town of Twon-Brass lies near the mouth of the Brass River. This was a slaving port in the early 19th century, and later a collection point for palm oil and kernels.