Business Insider | US sanctions businessman helping Syrian government buy oil from Islamic State Reuters Islamic State, which has been described by U.S. officials as the wealthiest terrorist group of its kind, is believed to derive much of its funding from oil fields seized from the Syrian government. IS sells the oil through long-standing smuggling ... US sanctions those helping Syrian government buy oil from ISIS US military has released video of its airstrikes pounding ISIS oil trucks US sanctions Syrian regime for buying ISIS oil |