Iran has sold all the oil it had stored for years at sea and Tehran is now struggling to keep exports growing as it grapples with production constraints, shipping and oil sources say. Since the easing of international sanctions in January 2016, Iran tried to make up for lost sales by releasing millions of barrels parked on tankers offshore. Tanker tracking and oil sources said Iran had sold its last stocks from the floating storage in the past two weeks. Much of the oil stored was condensate, a very light grade of crude. With no more stocks at sea, Iran has lost a vital resource that had propped up exports. “We do think that (floating storage) has been the […]