Iran shipped less oil to China in May, at least according to preliminary data, but it seems unclear how much of that is due to tighter sanctions and how much is down to weak demand + refiners that stockpiled Iranian oil earlier in the year.
www.bloomberg.com/news/article...
Iran Oil Flows to China Fall on Sanctions, Refinery Maintenance
Iran is shipping less oil to China, as toughening sanctions snarl the OPEC producer’s shipments and refinery demand falls in the world’s biggest fossil fuel importer.