The U.S. average price for regular gasoline as of December 29, 2014, was $2.30 per gallon, down 10 cents from the week prior and $1.03 per gallon lower than the same time last year. The Rocky Mountain price declined 16 cents to $2.23 per gallon, followed by the Midwest price, which fell 14 cents to $2.09 per gallon. The Gulf Coast price decreased 10 cents to $2.07 per gallon, while the East Coast price was down nine cents to $2.44 per gallon. The West Coast price decreased eight cents to $2.62 per gallon.

The U.S. average price for diesel fuel fell seven cents from the week prior to $3.21 per gallon, 69 cents less than the same time last year. The Rocky Mountain price decreased 10 cents to $3.24 per gallon, while the Midwest price declined nine cents to $3.21 per gallon. The West Coast price fell six cents to $3.27 per gallon. The East Coast and Gulf Coast prices each fell five cents, to $3.26 per gallon and $3.12 per gallon, respectively.