Fuel prices at record Labor Day high in U.S. due to Iran war and refinery issues

Trucks and other freight delivery systems use a lot of diesel, and that increased transportation cost is being passed on to consumers, whether at the grocery store or through package delivery services.

“It doesn’t really seem like there’s an end to it,” Collins said.

Gas prices typically drop as the summer driving season ends and refineries turn to making a cheaper winter blend.

But Seng said there are other factors this year even beyond the volatile situation in the Middle East that make future prices unpredictable. U.S. refineries are working at 98% capacity, many in the unusually harsh Texas heat. If there are problems there or a hurricane knocks some systems offline, prices will struggle to drop.

And it’s not just a Middle East problem. Ukrainian drone attacks on Russian refineries are squeezing diesel supplies. Chinese refiners are seeing declining outputs as well, said Matthew Metzgar, a clinical professor of economics at UNC Charlotte.

“There’s just less gasoline coming out of those refineries,” Metzgar said.

Wright, the energy secretary, said the Trump administration was taking steps to increase production and that the markets forecast lower prices in the coming months.

“If you look at the futures prices, if you wanted to buy today in bulk gasoline for two months out in November, it’s about $0.35 cheaper than it is today. So the marketplace thinks gasoline prices are going to move meaningfully lower,” he said.

Geopolitically, though, there is little a driver can do to knock down gas prices.

But using price apps can help save a little money, especially on long trips where gas by the interstate could be 10 to 15 cents per gallon more expensive than at stations a short drive down the road, Metzgar said.