Since invading huge swaths of northern and central Iraq, the Islamic State of Iraq and al-Sham (ISIS) has been smuggling increasing amounts of crude scavenged from Iraq’s stricken oil infrastructure to buyers in the Kurdistan region, earning the extremist group an estimated $1 million per day.The first truckloads of ISIS-controlled crude arrived in Tuz Khurmatu, a majority-Turkomen town that has long been at the epicenter of ethic and administrative tension, just two days after much of Sala.