AAA Michigan says gas prices statewide have fallen by about 10 cents per gallon in the past week.
The Dearborn-based auto club says late Sunday the average price for self-serve regular unleaded gasoline was about $2.40 per gallon.
That's about 5 cents more than at the same point last year.
Michigan's lowest average price was about $2.30 per gallon in the Bay City, Midland and Saginaw areas.
The highest was about $2.54 per gallon in the Marquette area.
It's the fourth week in a row that the Marquette area had the highest average price.
The Detroit-area's average fell about 6 cents to $2.42 per gallon. AAA Michigan surveys daily fuel prices at 2,800 gas stations across the state.