I have heard claims that ISIS is trucking the oil into Iraq (Putin is bombing the tanker trucks). I assume the oil is “laundered” by selling it as Iraqi oil. Someone in Iraq’s refinery or oil storage facilities is getting rich facilitating this fraud, shouldn’t be hard to find out who.
ISIS is in Iraq with some control of oil production areas. They have had control of one of the larger refineries but was pushed back out.
Turkey is a bigger buyer of their oil for use in their own refineries.
An increase of half a million barrels per day? How?