Pakistan announced that the U.S. and Iran reached an agreement to end the war and open the Strait of Hormuz. But that doesn’t mean high oil and gasoline prices and energy supply problems will be solved overnight. Energy experts say it will likely be months before energy companies can resume operations to the point where they're able to meet the world’s demand. It will take a long time for ships stranded in the Persian Gulf to reach their destinations. And companies need to be confident that peace will last before they send in ships or restart oil production.