Gas prices across the state have jumped nine cents in the past week according to the latest report from AAA Michigan. The current statewide average in Michigan is $2.60 per gallon.

Of the ten Michigan metro areas surveyed by AAA for self-serve unleaded fuel prices, the lowest averages can be found in the Marquette area where it's about $2.45 per gallon. The highest averages are in the Saginaw/Bay City/Midland area where it's about $2.64 per gallon. Gas prices in and around the Flint area were averaging $2.63 as of Sunday.

AAA says Michigan placed sixth in the nation for most expensive average gas price and this year's summer driving season is expected to be characterized by higher-than-normal gasoline demand. Additionally, supply is described as tight throughout the region and a number of refineries in the area are reporting challenges. Reduced production, combined with sustained demand, are believed to be behind prices moving noticeably higher in the region. The prices may remain volatile in the coming weeks as long as refineries continue having issues.