U.S.-led strikes target Islamic State oil revenues - Pentagon

A masked, black-clad militant, who has been identified by the Washington Post newspaper as a Briton named Mohammed Emwazi, brandishes a knife in this still image from a 2014 video obtained from SITE Intel Group February 26, 2015. REUTERS/SITE Intel Group/Handout via Reuters

WASHINGTON (Reuters) - U.S.-led air strikes in Syria have inflicted "significant damage" to Islamic State's ability to fund itself, the Pentagon said on Friday.

Recent strikes in an air operation dubbed "Tidal Wave II" have been concentrated on oil facilities in the Dayr Az Zawr region, which provide an estimated two-thirds of Islamic State's oil revenue, Pentagon spokesman Col. Steve Warren said at a news briefing.