Average retail gasoline prices in Wyoming have fallen 3.7 cents per gallon in the past week, averaging $2.39/g yesterday, according to GasBuddy's daily survey of 494 gas outlets in Wyoming. This compares with the national average that has fallen 5.2 cents per gallon in the last week to $2.20/g, according to gasoline price website GasBuddy.com.

Including the change in gas prices in Wyoming during the past week, prices yesterday were 87.0 cents per gallon lower than the same day one year ago and are 18.1 cents per gallon lower than a month ago. The national average has decreased 8.5 cents per gallon during the last month and stands 83.9 cents per gallon lower than this day one year ago.

October ends with the Halloween tradition of trick or treating. The good news for drivers is that the treats should extend into November," said Jeff Pelton, GasBuddy's senior petroleum analyst for the Northeast.

"As refineries finish up their planned and in some cases unplanned (notably in the Midwest) rounds of maintenance, gasoline should return to the pumps at very high levels. That, coupled with the lower demand that comes with the fall season, should push November retail prices to fall another 10 to 12 cents."