Islamic State (ISIS) militants are taking in more
than $3m (£1.8m) a day through oil smuggling,
extortion, theft and human trafficking, say
intelligence officials and experts.
Aid workers, researchers and intelligence agents
say that as the group has taken over sections
of Iraq and Syria it now controls as many as 11
oil fields in both countries. It is using
generations-old smuggling networks to bring in
the trade from oil and other goods. It is also
making money from extorting cash from people
in the areas they have seized, kidnapping for
ransom and from human trafficking.