Iraqi drivers wait in line to refuel their cars at a gas station in Arbil, the capital of the autonomous Kurdish region of northern Iraq, on June 19, 2014, as violence rages in northern Iraq. Iraqi government forces regained full control of the country's biggest oil refinery after heavy fighting with Sunni militants attempting to seize it, officials said. AFP PHOTO / SAFIN HAMED        (Photo credit should read SAFIN HAMED/AFP via Getty Images)