The price of May reformulated unleaded blendstock gasoline futures prices hit $3.37 per gallon, on April 29. That means the average price of gas at the pump could be $4.50 by the end of May.
For some parts of the country, like California, prices could hit $5.50 or more, per gallon. For a little explainer on gasoline futures see my post “Think gas is high now…”