AAA data shows U.S. average gasoline price rose 7 cents to $4.18 per gallon, its highest in nearly four years.
Prices have jumped $1.19 per gallon, over 40% increase since late‑February attacks on Iran by the U.S. and Israel.
Brent crude futures surged ~16% and WTI rose ~13% last week amid supply worries from Strait of Hormuz disruptions.
Margins fell about 30 cents per gallon to 10 cents, down from an average of 40 cents, per Gulf Oil’s Tom Kloza.