The national average of a gallon of gas in the United States hit a record high on March 7 as prices soar amid the Russia–Ukraine war. The average price nationwide hit $4.104 on Monday, breaking the record of $4.103 set in 2008, according to GasBuddy. The record came after the national average spiked 49 cents in just one week, breaking the previous one-week spike set in 2005, the gas-tracking company said.