U.S. gasoline prices in 2015 were lowest since 2009
U.S. regular retail gasoline prices averaged $2.43 per gallon (gal) in 2015, 93 cents/gal (28%) less than in 2014 and the lowest annual average price since 2009. Lower crude oil prices in 2015 were the main cause for lower gasoline prices. In 6 of the 10 cities for which EIA collects weekly retail price data, gasoline prices did not exceed $3.00/gal.
Source: U.S. Energy Information Administration (EIA.gov)