PORTLAND — Gas prices in Maine have fallen more than a penny per gallon in the past week.

The average retail gas price in Maine was $2.77 per gallon on Sunday. The figure is based on a GasBuddy.com survey of 1,228 gas outlets in the state. The national average price remained stuck at $2.76 per gallon.

Maine gas prices were 94.3 cents less per gallon than the same day in 2014 and seven-tenths of a cent higher than a month ago.

The national average price is 85 cents cheaper than a year ago and 3.9 cents less per gallon than a month ago.