No.Strait of Hormuz (sp?) is closed so the entire region cannot ship to ROW. So everyone who normally buys from that region will now compete on bids to buy from outside that region. This is on top of the loss of refining capacity in the region.
The Strait is not closed - Iran claims it is closed.
Big difference.
Iran has claimed many things in the past couple of days that turned out to be patently untrue.
The question is whether or not shippers will transit the Strait during conflict, but that is not the same thing.