This March 27, 2018 photo shows Syrian workers fixing pipes of an oil well at an oil field controlled by a U.S-backed Kurdish group, in Rmeilan, Hassakeh province, Syria. Since the Syrian government left the predominantly Kurdish area in northern Syria, the Syrian Kurds have been in control of some of the country's largest oil fields in Hassakeh province in the northeast starting in 2013. Many former government employees stayed on, and their salaries continued. (ANSA/AP Photo/Hussein Malla) [CopyrightNotice: Copyright 2018 The Associated Press. All rights reserved.]