Africa Most Richest - Aliko Dangote 

Nigerian-born and Africa most richest - Aliko Dangote, told Reuters on Tuesday of his plan to invest up to
$8 billion to build a Nigeria oil refinery with a capacity of around 400,000 barrels a day by late 2016.

This in no doubt will double Nigeria's refining capacity - currently 445,000 per day among four (4) refineries.