If the US reimposes sanctions but buyers remain willing, Iran can still sell crude by discounting; revenue losses from lower prices could be offset by higher global oil prices from any new hostile actions. Since the blockade was lifted, Iran has sold about 100 mln barrels at roughly $65–70/bbl, netting approximately $4 bln. Only a renewed US naval blockade would likely stop those exports, but that would risk a wider military conflict.