The United States Agency for International Development says more than 70 percent of Nigeria lives on less than a dollar a day -- the population is among the 20 poorest in the world . Nigeria is one of world 's richest oil states ; people are among poorest in world . Militant group MEND demands profits given to British people . Nigeria is holding 20 Nigerian oil workers captive . MEND says more workers will be seized if Nigeria does not stop exporting oil wealth .
Nigeria is one of world 's richest oil states ; people are among poorest in world . Militant group MEND demands profits given to British people . Nigeria is holding 20 Nigerian oil workers captive . MEND says more workers will be seized if Nigeria does not stop exporting oil wealth .