Weekly Gasoline Price Update: WTIC Up 2.3% By: TalkMarkets January 09, 2018 at 05:37 AM EST Hawaii has the highest average price for Regular at $3.21 and San Francisco, CA is the most expensive city, averaging $3.27. Oklahoma has the cheapest at $2.19. Read More >> Related Stocks: US Gasoline United States Oil Fund iPath Dow Jones-Goldman Sachs Crude Oil Fund