Gas prices top $4 a gallon as Iran war triggers global oil shock

Gas prices have surpassed $4 a gallon nationally, driven by supply disruptions stemming from conflict with Iran that has roiled global oil markets. The last time fuel costs reached this level was in 2022, according to AAA data. The geopolitical tension has tightened crude supplies and rattled energy markets already sensitive to production disruptions. Higher gas prices typically ripple through the economy, raising transportation and shipping costs for consumers and businesses. The spike underscores oil's vulnerability to Middle East instability and the limits of U.S. energy independence despite increased domestic production in recent years.