Reuters reports that “U.S.-led coalition air strikes against Islamic State oil facilities have cut the militant group’s oil revenues by about 30 percent since October, a coalition spokesman said on Wednesday.”  

“In October, the U.S. military launched an intensified effort to go after oil infrastructure controlled by Islamic State, dubbed ‘Tidal Wave II.'”  

“That effort has consisted so far of 65 air strikes, a Baghdad-based spokesman for the U.S.-led campaign, U.S. Army Colonel Steve Warren, said in a news briefing.”