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
Enclaves of Forcados and Badjibo families and servants. The lease was for a renewable period of thirty years in each case, and included conditions such as a requirement to enclose the area and to forbid retail trading. The annual rent was set at one franc per year. The enclaves were mentioned in French textbooks in 1926 and described as unoccupied in 1929. The leases were not renewed at the end of the initial thirty year period. The name 'Forcados' (meaning 'forked') was given to the area by the first Portuguese slave traders to explore the Niger delta in the current Bayelsa State. The leased area