U.S. Hits ISIS Oil Refineries in Syria

The U.S. and Arab allies unleashed a new round of airstrikes against Islamic State militants in eastern Syria late Wednesday, targeting a dozen small oil refineries.

U.S. officials told Fox News the latest round of strikes was designed to target a dozen so-called "modular oil refineries"-- essentially small, ISIS-built refineries that the terror group uses to fuel its vehicles and to fund its operations. "This is not going to look like the oil fields burning in Iraq," one official said, referring to the Gulf War.

A Department of Defense official said ISIS made roughly a $2 million a day profit from the modular oil refineries, which produced 300 to 500 barrels a day.