Average retail gasoline prices in Minnesota have not moved in the past week, averaging $3.46 per gallon Sunday, according to GasBuddy’s daily survey of 2,856 gas outlets in Minnesota. This compares with the national average that has increased 3.2 cents per gallon in the last week to $3.44 per gallon, according to gasoline price website MinnesotaGasPrices.com.

Regular gas prices in International Falls, according to the site, ranged from $3.45 to $3.54. Local prices for premium fuel were listed at $4.09 per gallon and diesel fuel ranged from $4.24 to $4.33. Prices for midgrade fuel were not listed on the site.

Including the change in gas prices in Minnesota during the past week, prices Sunday were 23.1 cents per gallon lower compared to the same day one year ago and are 27.3 cents per gallon higher than a month ago. The national average has increased 17.6 cents during the last month and stands 26.7 cents per gallon lower than this day one year ago.

“Gasoline prices, as expected, continued their rise over the last week,” said GasBuddy.com Senior Petroleum Analyst Gregg Laskoski. “The pace in the increases slowed somewhat versus the week prior, but motorists shouldn’t get excited over the one week slow down in the rise in prices. We fully expect that as refineries get into the prime of maintenance season, gasoline prices nationwide will continue to rise, and perhaps at the fastest rate we could see in 2014. We’re starting to see cleaner burning summer gasoline come in to view across the nation, and with lower production as refineries prepare for an increase in demand and for summer spec gasoline, price spikes can occur,” Laskoski said.

GasBuddy operates MinnesotaGasPrices.com and over 250 similar websites that track gasoline prices at more than 140,000 gasoline stations in the United States and Canada.