DETROIT – Michigan drivers already angry over rising gasoline prices may not have seen the worst yet.

That blunt warning comes as global energy executives, oil traders, economists, and shipping companies increasingly focus on one narrow waterway half a world away: the Strait of Hormuz.

The concern intensified after ExxonMobil CEO Darren Woods warned that oil markets may still be underestimating the potential economic fallout tied to escalating tensions involving Iran and the strategically critical shipping corridor.

For consumers in Michigan, the issue is suddenly very personal.

Higher oil prices do not just affect the cost of filling up a pickup truck or SUV. They ripple through nearly every part of the economy, driving up shipping costs, airline fares, food prices, manufacturing expenses, and the overall inflation rate.

“When diesel goes up, everything delivered by truck gets more expensive,” said Patrick De Haan, head of petroleum analysis at GasBuddy, in previous interviews about fuel inflation trends. “That eventually impacts nearly every consumer product.”

And in Michigan — where the economy still depends heavily on manufacturing, logistics, automotive supply chains, and long-distance freight movement — those increases could hit particularly hard.

According to the U.S. Energy Information Administration, roughly 20 percent of the world’s petroleum liquids consumption moves through the Strait of Hormuz, a narrow passage connecting the Persian Gulf to global shipping routes. Any disruption there can quickly send oil futures sharply higher.

The International Energy Agency has also warned that roughly one-quarter of global seaborne oil trade and a major portion of liquefied natural gas shipments transit through the region.

Oil traders fear that if shipping traffic slows, insurance costs spike, or military conflict escalates, global crude prices could surge rapidly.

That would directly affect Michigan consumers.

As of Thursday morning, AAA reported average gasoline prices in Michigan approaching $4.80 per gallon in some regions, with Metro Detroit prices hovering above $4.70. Diesel fuel prices have climbed even faster, surpassing $6 per gallon in parts of Southeast Michigan.

For many households, that becomes an immediate budget issue.

Michigan residents often drive longer distances than consumers in dense urban coastal markets. Commuters traveling from suburbs into Detroit, Ann Arbor, Grand Rapids, Lansing, or other employment centers can quickly feel the impact of even modest fuel increases.

The timing could also not be worse for summer travel.

Higher jet fuel costs are already beginning to pressure airline pricing, potentially increasing airfare for both business and vacation travelers flying out of Detroit Metropolitan Wayne County Airport.

But economists say the bigger concern is inflation.

Oil price spikes historically flow into the broader economy because transportation costs affect nearly every sector. Groceries, retail goods, construction materials, automotive parts, and industrial equipment all become more expensive to move.

That matters in Michigan, where manufacturing remains one of the state’s largest economic engines.

Automotive plants across the Midwest rely on global just-in-time supply chains that can become stressed when fuel and shipping costs rise sharply. Suppliers already dealing with higher labor expenses, tariffs, and elevated borrowing costs may face another round of financial pressure if energy markets continue climbing.

Industry analysts say diesel may become one of the most important warning indicators to watch.

While consumers focus heavily on gasoline prices displayed on roadside signs, diesel drives the freight economy. Trucks, rail systems, heavy equipment, construction fleets, farm machinery, and many industrial operations depend on diesel fuel.

If diesel continues rising, businesses may have little choice but to pass along those costs to customers.

That could create another inflation headache for the Federal Reserve just as many Americans hoped price pressures were finally cooling.

The political implications are also significant.

Energy prices have historically shaped voter attitudes, especially in swing states like Michigan where economic anxiety can quickly become a dominant political issue.

Former President Donald Trump has repeatedly argued that instability in the Middle East threatens American energy security and consumer affordability. Meanwhile, critics argue broader geopolitical tensions involving Iran, sanctions policy, military deployments, and global oil dependence continue exposing the U.S. economy to overseas shocks.

Regardless of politics, economists agree on one thing: consumers tend to notice energy inflation immediately.

A jump in mortgage rates may feel abstract. A spike at the gas pump does not.

The concern now is whether markets are entering the early stages of a broader energy-price surge similar to previous geopolitical oil shocks.

Unlike temporary refinery outages or seasonal gasoline spikes, a sustained disruption tied to the Strait of Hormuz could affect global energy flows for weeks or months.

That scenario worries corporate executives across multiple industries.

Shipping companies could face rising insurance costs. Airlines may reduce routes or raise fares. Manufacturers could see margins squeezed. Retailers may encounter higher transportation expenses during a period when consumers are already sensitive to inflation.

For Michigan families, the effects may appear gradually at first — another $10 at the pump, higher delivery fees, more expensive groceries, pricier airline tickets.

But if global oil markets continue escalating, economists warn those small increases can spread quickly throughout the economy.

And that is why one of the world’s most important energy chokepoints is suddenly becoming a growing concern for drivers in Detroit, factory workers in Macomb County, manufacturers in Grand Rapids, and businesses across Michigan.

What happens in the Strait of Hormuz may soon determine what Americans pay for nearly everything.