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Michigan gas prices jump 20% — and likely to keep rising

Mar 16, 2026

Michigan residents are feeling the weight of a rapidly shifting energy landscape. Gas prices in the state have climbed more than 20 percent since U.S. air strikes on Iran began, with the statewide average for regular unleaded reaching around $3.60 per gallon and continuing to climb. Nationally, prices have risen even faster, with the average reaching $3.72 per gallon according to AAA.

Michigan’s increases have been among the steepest in the country week over week, driven primarily by rising crude oil costs tied directly to the ongoing conflict in the Middle East. The core issue is geography. The Strait of Hormuz, a narrow waterway that serves as a critical transit point for a significant share of the world’s oil supply, has become a major source of market anxiety. When access to that corridor is threatened or disrupted, the ripple effects move fast, from crude oil futures to the price displayed on the sign at your local gas station.

Analysts at GasBuddy and AAA have both warned that prices are likely to continue climbing, with seasonal factors such as the transition to a more expensive summer-blend gasoline adding further pressure on top of the geopolitical strain already pushing costs higher.

The Cardiff Connection

Cardiff CEO William Stern has been closely watching how these shifts play out for everyday consumers and the small businesses that depend on fuel for everyday operations. Stern noted that when a vital route like the Strait of Hormuz becomes a major bottleneck, markets react almost immediately, and that reaction is impossible to ignore. People feel it the moment they pull up to the pump.

For small business owners, fuel prices filter down to the costs of transportation and supplies, and those increases tend to arrive faster than businesses can adjust. Cardiff works with small business owners navigating exactly these kinds of external pressures, helping them access the capital they need to stay flexible when costs rise unexpectedly and the economic environment shifts in ways that are difficult to predict or control.