Islamic State sells oil it has stolen to pay for its terrorist operations, said the Obama administration. Islamic State makes an estimated $100 million dollars to $500 million dollars a year from oil sales, said a congressional report. It is not the largest source of revenue, but still critical, according to the Obama administration.___________________________奥巴马政府称,伊斯兰国卖出石油所获的钱,偷偷用于恐怖行动. 国会报告宣称:伊斯兰国做出证明,一年卖出的石油赚了1000万到5000万美元. 据奥巴马政府表示,石油并不是最大收入来源,但其事实仍然有待证实.__________________________