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US truckers' diesel spending on Middle East conflict reaches record high

More than 3 million U.S. trucks that move goods from factories, to grocery stores and construction sites, are facing the highest diesel prices for years. This is adding pressure to the industry because the Iran War-related spikes in oil prices threaten to reduce freight demand.

Since the start of the Iran War, the Strait of Hormuz has been a vital artery of global energy flow. The price of diesel, which is used to fuel trucks, has increased by $1.89 or 50%. Diesel and gasoline prices also soared as crude oil prices, the basis for both, rose. This led to higher transportation costs and increased prices of many consumer goods.

Experts warn that there is no relief in sight, as diesel prices have reached all-time highs in logistic hubs such as California and Texas. A ceasefire between the U.S.A. and Iran announced last week also appears fragile.

The state of the U.S. economic climate is closely tied to trucking. According to American Trucking Associations, in 2024 the industry will have moved nearly three quarters of all freight, including retail and manufactured goods, and generated $906 Billion in revenue.

According to fleet management software provider Samsara, U.S. fleets spent an average of $5.52 per gallon of diesel on Monday. This is higher than the previous all-time record of $5.50, set in June 20, 2022, after?Russia invaded Ukraine. Fuel spend data from Samsara, which includes discounts and surcharges and is based on more than 5,500 fleets across the U.S., represents almost 1 billion gallons of fuel.

Jason Miller, supply chain professor at Michigan State University, said that no company had $5.60 per gallon of diesel in their budget bingo cards for 2026.

FedEx, a delivery firm that also runs one of America's largest trucking companies, has said the U.S. and Israeli war on Iran may have an impact on the fourth quarter performance, if rising fuel prices cause customers to withdraw.

Small firms are hit the hardest

According to a March survey by DAT Freight & Analytics, 18% of the 540 trucking companies surveyed had ceased operations because of the rise in fuel prices. Around 44% of the firms, of different sizes, from all over the U.S. were more selective with load weights, and around 45% drove fewer miles.

Small businesses dominate U.S. trucks. As of June 20, 2025, ATA reported that there were 580,000 registered motor carriers in the United States, 91.5% of which operated 10 trucks or less.

In a recent market update, DAT’s Dean Croke, principal analyst, said that the surge in diesel prices had wiped out profits from December, January, and February for many small carriers and owners-operators. He added that most operators were still just above breakeven.

Heather Hickson Griffith is a former Marine with more than 10 years of experience driving a big truck. She pays up to $8 a gallon for fuel in California, which is consuming her savings quicker than the spike in fuel prices of 2022.

In order to save money, the Oklahoma heavy equipment hauler stopped eating in restaurants. Daniel Griffith, her husband, runs cargoes to the East Coast where fuel is less expensive. GKZ Trucking is a small company with 21 owner-operators that does not have the heft to recover higher fuel costs. They are also more susceptible to cash flow problems and profits squeezes as prices rise.

Hickson Griffith, an independent driver from Texas, often pays out of pocket for fuel. They can find it difficult to convince customers to reimburse them if prices increase. The large companies negotiate fuel discounts with fuel suppliers and use surcharges to recover higher fuel costs.

Hickson said that without relief, he would be in pain to the point of no returns by the end of the calendar year.

Avery Vise is vice president of FTR Transportation Intelligence and said that the soaring diesel prices could drive thousands of small truckers out of business. This would worsen an already limited trucking capacity.

Vise stated that freight rates will rise more than 2022.

Researchers at Texas A&M Transportation Institute discovered that transportation costs are a relatively small part of the cost of goods, but can reach 20% or more for certain staples such as?milk.

Inflation is still below the levels of 2022 Russia-Ukraine energy shock when supply chain disruptions due to pandemics and massive federal expenditures?contributed?to soaring prices.

RISE OF FUTURE PRICE INCREASES

As midterm elections approach, President Donald Trump's Republican Party and the high price of fuel have become a major political headache.

Since the Middle East conflict escalated, diesel prices have reached record highs in California, Hawaii Nevada, North Carolina, and Texas.

Kelly Soderlund is the head of insight at?Samsara. She said that the rise in diesel prices far outpaced the rise in gasoline prices. The two prices rose together in the early days of?Ukraine War. She said that today's fuel costs are more expensive for truckers than consumers.

Patrick De Haan is the head of GasBuddy's petroleum analysis. He said that motorists should be prepared for another round price increases after the ceasefire talks between Iran and the U.S. failed to produce an agreement at the weekend. This sent oil prices sharply up. He said that the move towards a complete blockade of Strait of Hormuz was compounding global concerns about supply and could further disrupt flows.

(source: Reuters)