Prices at gas pumps are starting to sink and oil is on track to drop 20% in May — its largest one-month decline since 2020 — as investors remain optimistic that a deal to end the Iran war is near. As of Friday, national average gasoline prices had eased to $4.39 a gallon, according to AAA. That’s about 17 cents lower than the 2026 peak price of $4.56 a gallon – though it’s still nearly 50% higher than pre-war prices. Brent crude oil had fallen 1.3% to $91.51 a barrel as of about 2:50 p.m. ET