Why Gas Prices Are Climbing Back Toward $4 as the Hormuz Standoff Drags On

The national average price of gasoline climbed to $3.94 a gallon this week and kept rising into the weekend, according to AAA, as a renewed standoff over the Strait of Hormuz cuts into the world’s oil supply. Drivers filling up in California and Hawaii are now paying more than $5 a gallon, and even in the cheapest states, prices are running well above where they sat a year ago. The increase marks the second time in six weeks that pump prices have reversed course, and unlike June’s brief dip, this run higher shows no sign of stopping soon.

What AAA’s Numbers Show This Week

AAA’s national average stood at $3.943 a gallon on Thursday, up from $3.79 recorded on July 7 and $4.05 as a monthly average in June. Prices had briefly cooled in June alongside a temporary truce tied to the Strait of Hormuz, but that relief evaporated when the ceasefire collapsed earlier this month. Wholesale gasoline futures have followed crude oil higher, climbing toward $3.20 a gallon this week, their highest level in seven weeks. The U.S. Energy Information Administration reported that gasoline inventories fell by 1.5 million barrels in the week ending July 10, adding more pressure even as refiners keep running at typical summer output.

Light sweet crude, the U.S. benchmark, has jumped roughly 14 percent in a week to $78.28 a barrel. That single number explains most of what drivers are seeing at the pump: crude oil accounts for more than half the retail price of a gallon of gas, so a swing of that size shows up at the curbside sign within days.

Why a Waterway Half a World Away Sets Your Local Price

The Strait of Hormuz is a narrow channel between Iran and Oman that roughly a fifth of the world’s oil and a large share of its liquefied natural gas passes through on the way to global markets. Iran’s Revolutionary Guard Corps declared the strait closed “until further notice” on July 11, after an attack on a Cyprus-flagged container ship set it ablaze and left one crew member missing. U.S. officials disputed that the strait was fully closed, but shipping data tells its own story: as of July 19, only about 10 vessels were transiting the strait each day, compared with roughly 88 per day under normal conditions.

Which States Are Feeling It Most

The pain at the pump is not spread evenly. Hawaii holds the nation’s highest average at $5.46 a gallon, followed by California at $5.37 to $5.46 depending on the day, and Washington at just over $5. Nevada, Oregon and other West Coast states are also running well above $4.50. On the other end of the scale, Indiana has the country’s cheapest gas at $3.06 to $3.21 a gallon, with Oklahoma and Texas close behind in the low $3.30s. As of July 7, average prices had risen by double digits compared with a year earlier in nearly every state, with Indiana the lone state to record a year-over-year decline.

The gap between cheap and expensive states comes down to a mix of state gas taxes, local refining capacity, environmental blending rules and how far fuel has to travel to reach a given pump. States that refine their own crude and have lighter tax burdens tend to ride out global price spikes with smaller swings, while states that import most of their fuel and layer on higher taxes feel every rise in crude prices more sharply.

A Familiar Pattern With a New Twist

Oil markets have flirted with a Hormuz shutdown before, with tension spikes in 2019 and 2012 among the sharpest examples, but neither episode produced a sustained closure of the strait itself. This standoff has already run longer, with fighting between the U.S. and Iran tracing back to late February, when the two countries launched an air war that first choked off shipping traffic through the passage. What started as intermittent warnings and mine-laying by Iran’s Revolutionary Guard has escalated into a formal blockade declaration, repeated U.S. strikes, and now a documented drop in vessel traffic that analysts can track in near real time.

That longer runway makes a real difference for household budgets. A short-lived spike tends to fade from a family’s spending plan within a pay period or two. A months-long disruption changes how people budget for commuting, road trips and even grocery delivery: freight costs eventually pass through to retail prices across the board, stretching the impact well past the pump.

What Happens Next

Gas prices are likely to stay tied to the pace of the conflict. President Trump reinstated a naval blockade of Iranian shipping and floated a transit fee on cargo passing through the strait, both of which raise the odds of further supply disruption rather than a quick resolution. Any additional strike on Iranian energy infrastructure or further restriction on tanker traffic through the strait could push prices higher still. A genuine reopening of the waterway would likely bring quick relief, too: oil markets tend to move on expectations as much as on actual barrels delivered.

The timing adds to the sting for drivers. Peak summer driving season already pushes demand higher every year, and this spike is landing on top of that seasonal pattern rather than in a slower stretch when refiners have more slack to absorb a shock.

How to Cut Your Fuel Costs While Prices Climb

A few practical steps can soften the blow while the standoff plays out. Apps such as GasBuddy and the AAA mobile app track real-time prices at nearby stations and routinely turn up gaps of 20 to 30 cents a gallon between stations just a few blocks apart. Grocery store fuel rewards programs, run by chains including Kroger and Safeway, can knock 10 to 30 cents off a gallon for members who shop regularly. Combining errands into fewer trips, keeping tires properly inflated and clearing excess cargo out of the trunk all improve fuel economy by measurable amounts, and many credit cards now offer 2 to 5 percent cash back specifically on gas station purchases.

Drivers with a choice of routes should also check whether a slightly longer highway drive burns less fuel than a shorter route full of stop-and-go traffic. City driving with frequent braking and acceleration can cut fuel economy by 10 percent or more compared with steady highway speeds.

Owners of hybrids and electric vehicles are largely insulated from the swing, which is part of why search interest in hybrid trade-ins tends to climb alongside pump prices. Public EV charging in most of the country still costs a fraction of what an equivalent mile in gas costs, and home charging overnight, when electricity rates are often lowest, pushes that gap even wider. Drivers considering a switch should weigh the upfront price of a hybrid or EV against how many miles they drive each year. The fuel savings only outweigh a higher purchase price for people who put real mileage on their vehicle.

Households without the option to switch vehicles quickly have fewer levers to pull, which is why AAA and consumer advocates keep steering drivers back to the basics: shop around for the lowest price nearby, combine trips, and keep tires and engines properly maintained. None of those steps offsets a 26 percent year-over-year rise in fuel costs entirely, but together they can trim a meaningful share off a household’s monthly fuel spending while the standoff over the strait continues to play out.

For now, the message from AAA and energy analysts is consistent: watch the news out of the Gulf, not just the number on the sign at your local station. That number is following events unfolding thousands of miles away.

Sources:

• HNGN: National Gas Prices Climb to $3.94 as Iran Tensions Reignite Fuel Costs
• Al Jazeera: Iran War Updates, Strait of Hormuz Closure
• AAA State Gas Price Averages
• Motoring Chronicle: Gas Prices Rise Again as Iran Ceasefire Uncertainty Pushes Crude Higher