Illinois Gasoline Average Rises 23 Cents to $4.87
Gasoline prices in Illinois surged by 23 cents per gallon in the past week, reaching an average of $4.87, largely attributed to a refinery issue impacting the Great Lakes region.
Quincy Hannibal Keokuk, IL, October 26, 2026 —
The average price of gasoline in Illinois rose by 23 cents per gallon over the past week, reaching $4.87 per gallon, according to the trend information provided. The increase was largely attributed to a refinery issue affecting the Great Lakes region.
The available information does not identify the refinery involved or describe the issue, including when it began or how it affected fuel supplies. It also does not specify the source of the price average, the dates covered by the one-week comparison, or whether the figure refers to a particular grade of gasoline.
No details were provided about prices in individual Illinois communities or how the state’s average compares with prices elsewhere in the region. The information also does not say whether the refinery issue has been resolved or indicate how prices may change next.
The reported figure is an average, so it does not establish the price at any specific station. The only stated movement is the 23-cent-per-gallon increase over the past week, bringing the average to $4.87. The refinery issue is described as the main attribution for the rise, but further details about the cause or the scale of its impact were not provided.
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