Regular unleaded averaged $4.58 a gallon on Thursday after a 32-cent daily jump and 72-cent weekly rise, with some Detroit-area stations near $5 and one above $6.
A power outage had shut BP's Whiting refinery in Indiana, while other Illinois and Indiana refinery disruptions and strong regional demand pushed Midwest prices sharply higher, especially in Indiana and Ohio.
Analysts said every state is paying more than a week ago, with oil above $100 a barrel and forecasts suggesting pump prices may stay elevated well beyond any short-term refinery recovery.
A single refinery outage crippled Midwest fuel supply. How secure is the rest of the nation's energy infrastructure?
As record gas prices hit consumers, could this crisis be the tipping point for adopting sustainable alternative fuels?
With the Strait of Hormuz closed, is America’s emergency oil release enough to prevent a global recession?