The collapse in oil prices has hit hard the economies of petro-states, including those in the Middle East, but experts say it will take a lot more than low oil prices to really damage the funding operations of ISIS.
ISIS oil revenue, reaching as much as $50 million a month, has been highlighted as a key revenue source for the Islamic State to finance its operations.
Oil prices have now fallen below $35 for the first time since 2007, but experts say low oil prices may serve the terrorist network's goals.
"The bigger impact of low oil prices is the delegitimization of the gulf monarchies, so paradoxically, a sustained oil crash is actually a plus for ISIS," said Eurasia Group president Ian Bremmer.
ISIS oil sources have also become a key military target for the U.S. and allies.