Diesel Hits Record $5.85 as Iran Conflict Disrupts Supplies

Diesel prices across the United States have reached an unprecedented national average of $5.85 per gallon, according to data from the American Automobile Association, surpassing the previous peak set after Russia's invasion of Ukraine. The sharp rise comes as the six-month conflict involving US and Israeli forces against Iran has effectively limited oil shipments through the Strait of Hormuz, driving up wholesale costs that commercial operators now pass along.

Trucks, trains, buses, farm equipment and construction vehicles rely heavily on diesel, so the increase has quickly affected freight and delivery networks. Companies have begun adding surcharges to online orders and mailed packages, while grocery stores report higher expenses for hauling produce, meat and other perishables that require frequent restocking. Experts note that these costs will continue to surface on store shelves for clothing, household goods and other items transported by diesel-powered means, with the full effect likely to grow if prices stay elevated.

The national average for regular gasoline has also climbed, reaching $4.15 per gallon compared with $3.20 a year earlier. Before the conflict began in late February, diesel averaged about $3.76, reflecting the direct link between the war and current pump prices.

In response, President Donald Trump has announced an oil development agreement with Venezuela aimed at boosting supply and easing costs for American drivers. The deal covers 17 strategic fields with an estimated 65 billion barrels of proven reserves and projects more than $100 billion in investment along with over $209 billion in taxes for Venezuela. Under the arrangement, the US government would hold 55 percent control of a joint venture with a private operator. Trump has pledged to substantially lower fuel prices through this channel, which follows the January seizure of former Venezuelan leader Nicolás Maduro by US forces.

Analysts have voiced doubts about whether the agreement can overcome longstanding barriers to investment in Venezuela's oil sector, including infrastructure decay and political risks. The plan arrives as voters prepare for November midterm elections, where economic pressures from fuel costs are expected to feature prominently.

Commercial shippers and retailers have already absorbed part of the added expense, yet many are shifting the burden to households through higher fees and eventual price adjustments. The combination of disrupted global supply routes and the uncertain timeline for new Venezuelan output leaves many families facing sustained pressure at the pump and beyond.