Average retail gasoline prices in Wyoming have fallen 2.7 cents per gallon in the past week, averaging $3.56/g yesterday, according to GasBuddy's daily survey of 494 gas outlets in Wyoming. This compares with the national average that has fallen 4.2 cents per gallon in the last week to $3.39/g, according to gasoline price website GasBuddy.com.

Including the change in gas prices in Wyoming during the past week, prices yesterday were 7.1 cents per gallon lower than the same day one year ago and are 4.6 cents per gallon lower than a month ago. The national average has decreased 6.7 cents per gallon during the last month and stands 14.9 cents per gallon lower than this day one year ago.

"The brief increase in the national average now appears over, as gas prices this past week have resumed their decline," said GasBuddy.com Senior Petroleum Analyst Patrick DeHaan. "Not a single state saw its gas price average rise in the last week- certainly an impressive feat compared to last week. The good news doesn't end there, either: prices will likely continue declining in the week ahead as EPA summer gasoline requirements end today in much of the country, ushering in cheaper to produce winter gasoline. Over the next month or two it is likely the national average will fall another 10-20 cents per gallon to some of the lowest prices of 2014. Additionally, some states in the south will see their average prices drop under $3/gal- perhaps even in time for Halloween," DeHaan said.