U.S. gas prices hit $4.09 as Iran war tightens global oil supplies, stockpiles low

U.S. gas prices climbed to $4.09 per gallon, up 37% since the Iran conflict began, as oil stockpiles sit below February levels and Ukrainian refinery attacks strain diesel supply. Brent crude has swung between $70 and $119 per barrel. Traders face elevated volatility in energy, inflation hedges, and risk assets.