Selling it to everyone. You think China gives a damn about the assclown's sanctions?
Reports are that the ISIS oil from northern Iraq and Syria is sold in Turkey for black market prices about half the current market rate or roughly $50 a barrel. Maybe $2 million a day.
From Turkey is where it reaches the world market.
The problem with ISIS , now called Islamic State, is that they want all the mid East oil just like Saddam Hussein. One oil field, one country at a time.