OPEC is unlikely to change its production ceiling when the group meets in June, Iran’s Oil Minister Bijan Zanganeh said on Sunday, according to the semi-official Mehr news agency. “Lowering OPEC’s production ceiling requires consensus between all members … under current conditions it seems unlikely that the OPEC production ceiling will change,” Zanganeh was quoted as saying. Last month, Zanganeh said the producing group should cut its target daily crude production by at least 5 percent, or approximately 1.5 million barrels per day.