Obama: Iran has veto rights over the Strait of Hormuz Barack Obama, former president of the United States: Iran now has veto rights over the Strait of Hormuz, through which oil passes to world markets. This dominance of Iran is the main reason for the increase in the price of oil in the world markets and no one can doubt this fact. Controlling this essential transition is considered the main reason for the increase in diesel prices, and for this reason the price of almost all goods in the world has increased.