#3:. Mike Adenuga, $4 billion Nigerian, Oil
Maker of many fortunes, Adenuga made his first fortune selling Coca-Cola and lace after returning from studying in the U.S. He made friends with Nigerian military leaders and landed government contracts.
His mobile telecommunications company, Globacom, is the Nigeria’s second largest after South Africa’s MTN. He owns Conoil, one of Nigeria’s largest indigenous oil exploration companies.