Crackdown on bush refineries unsettles Nigeria's oil heartland

OGONILAND, Nigeria (Reuters) - Listening for the engines of navy boats hunting illegal refineries in the swamps of Nigeria's Niger Delta, workers heat up crude oil in a tank next to a waterway.

from Reuters: Top News http://uk.reuters.com/article/uk-nigeria-oil-idUKKBN15H1JD?feedType=RSS&feedName=topNews