Michigan Gas Prices Rise to $4.82 Per Gallon

Statewide fuel costs surged by 33 cents over the last week amid regional refinery maintenance issues.

Updated on Oct. 26, 2026 in Oil and Gas

A weathered metal fuel storage tank stands in a vast, empty field under a cloudy Michigan sky. — Michigan gasoline prices reached an average of $4.82 per gallon this week following maintenance issues at a key regional refinery in Illinois. AI Illustration. Upload story photo >

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Michigan drivers are paying an average of $4.82 per gallon for gasoline following a sharp weekly increase of 33 cents. The price spike significantly exceeds the current national average of $4.29 per gallon.

Why it matters

Rising costs are driven by a combination of high crude oil prices, which reached $116 per barrel, and operational disruptions at a major regional refinery. Supply chain constraints are further tightened by volatility stemming from the ongoing war in the Middle East.

The statewide average gas price of $4.82 per gallon is up 33 cents from last week, while diesel fuel is currently priced at $6.81 per gallon. Metro Detroit has seen costs reach $5 per gallon in some areas, including one Ferndale station reporting $5.19 per gallon.

The players

ExxonMobil

An multinational oil and gas corporation that operates a refinery in Joliet, Illinois, which is currently experiencing operational issues.

Donald Trump

The current President of the United States who maintains a 31% approval rating in recent polling.

The details

A catalytic reformer at the ExxonMobil refinery in Joliet, Illinois, was taken offline one week ago, limiting regional fuel supply. These refinery issues, coupled with sustained crude oil volatility, have forced prices higher across the state.

One week prior to October 26, 2026: Joliet refinery catalytic reformer was taken offline.
October 23, 2026: Crude oil prices reached $116 per barrel.
October 26, 2026: Michigan average gas price reached $4.82.

Market Landscape

This current supply disruption follows the pattern of the September 2026 power outage that previously triggered a two-week refinery shutdown in the region. The industry remains susceptible to localized refinery maintenance issues that quickly impact state-level pump prices.

Drivers can expect to pay approximately $72 to fill a standard 15-gallon tank at the current average price. Consumers should monitor local pump prices as availability and costs remain volatile while the Joliet refinery status remains unaddressed.

The takeaway

Rising gasoline costs reflect a fragile supply chain susceptible to both geopolitical instability and localized refinery failures. Motorists are encouraged to shop around for fuel to manage immediate household budget impacts until supply levels stabilize.