The so-called Islamic State (IS) has made more than $500m (£330m) trading oil

A US-led coalition has been targeting IS oil refineries in Syria and Iraq

The so-called Islamic State (IS) has made more than $500m (£330m) trading oil, a US treasury official has said.

Its "primary customer" has been the government of Syria's President Bashar al-Assad, despite its ongoing battle to overthrow the regime, Adam Szubin told the BBC.
IS had also looted up to $1bn from banks in territory it held, he said.
A US-led coalition has been bombing IS targets, including oil facilities, in Syria and Iraq for over a year.
IS' finance chief was recently killed in one such mission, Pentagon officials announced on Thursday.
source: bbcnews