The average Illinois price for a gallon of regular unleaded gasoline is $2.40 -- two cents more expensive than last week.
AAA reports the City of Chicago has the highest state gas price, at $2.75 per gallon. By contrast, the cheapest gas is in Danville, at $2.17 per gallon.
Rockford's average price per gallon is $2.27, which is one cent higher than last week.