According to AAA Michigan, gas prices have increased seven cents in the past week. Michigan's current statewide average is $2.32 per gallon.

Of the ten Michigan metro areas surveyed by AAA for self-serve unleaded fuel prices, the lowest average price can be found in the Traverse City area where it's about $2.27 per gallon. The highest average can be found in the Marquette area where it's about $2.38 per gallon. Gas prices in and around the Flint area were averaging $2.29 as of Sunday.

AAA says Michigan ranks ninth in the nation for the most expensive average gas prices and third in the nation for the largest weekly change in average gas prices. AAA also says gas prices in the Great Lakes region continue to be the most volatile in the nation and tightening supplies and refinery issues contribute to seesawing prices for motorists.