Illinois drivers are seeing some relief at the pump as gasoline prices continue to decline.

According to GasBuddy's latest survey of more than 4,300 stations across the state, the average price for a gallon of regular gasoline in Illinois has fallen 17.6 cents over the past week to $4.13 per gallon. That's nearly 83 cents lower than a month ago, but still 72 cents higher than this time last year.
The national average price for gasoline also dropped, falling 14.1 cents during the past week to $3.85 per gallon. Diesel prices saw even larger declines, with the national average dropping 19.2 cents to $4.99 per gallon.

Among neighboring markets, Champaign posted the largest weekly decline, down 21.5 cents to $4.02 per gallon. Prices in the St. Louis area fell 16.5 cents to $3.81 per gallon, while Peoria dropped 13.5 cents to $4.24 per gallon. In Taylorville, gas is $4.29 per gallon.

GasBuddy petroleum analyst Patrick De Haan says gasoline and diesel prices declined in nearly every state during the past week. However, he cautions that uncertainty in the Middle East, including concerns involving Iran and the Strait of Hormuz, could put upward pressure on oil prices if tensions escalate.

The cheapest gas reported in Illinois Sunday was $3.35 per gallon, while the highest price was $5.99, a spread of $2.64 per gallon across the state.