Diesel Hits Record $5.85 as Iran Conflict Disrupts Supplies

Diesel prices across the United States reached an all-time national average of $5.85 per gallon on Friday, according to data from the American Automobile Association. That figure marks a sharp increase from $3.71 a year earlier and exceeds the previous peak recorded after Russia's invasion of Ukraine. The surge comes six months into the ongoing conflict between the United States, Israel, and Iran, which has disrupted global oil supplies through the closure of the Strait of Hormuz.

Diesel powers much of the nation's commercial transport, including trucks, trains, buses, farm equipment, and construction vehicles. Higher costs at the pump are already raising expenses for freight and delivery networks that move everyday goods. Businesses report passing along some of those costs through added fees on online orders and mail shipments. Shoppers face the prospect of higher prices on store shelves for items ranging from produce and meat to clothing and household products.

The price of regular gasoline has also climbed, reaching an average of $4.15 per gallon compared with $3.20 at the same time last year. Before the conflict began at the end of February, the national diesel average stood near $3.76. Crude oil prices rose quickly once Iran restricted access to the narrow waterway that carries a significant share of global oil shipments.

President Donald Trump has responded by pursuing an oil development agreement with Venezuela. The deal, announced Saturday, involves 17 strategic oil fields with an estimated 65 billion barrels of reserves. It includes more than $100 billion in investment and projected tax revenue exceeding $209 billion for Venezuela. The United States would hold 55 percent control of a joint venture with a private operator. The arrangement follows the earlier seizure of former Venezuelan leader Nicolás Maduro by U.S. forces under an authorization issued by Trump.

Some analysts have questioned whether the Venezuela project can overcome long-standing barriers to investment in that country's oil sector. Those doubts come as commercial vehicles continue to absorb higher fuel expenses that eventually reach consumers.

The economic effects appear most immediate in grocery aisles, where perishable foods require frequent diesel-powered transport and where farm equipment often runs on the same fuel. Experts note that additional price pressures could build if diesel remains elevated for an extended period. Midterm elections scheduled for November are expected to feature economic concerns prominently among voters.

The conflict's impact on fuel supplies has placed direct pressure on household budgets at a time when many Americans already face higher costs for basic goods. Trucking and logistics companies report steeper operating expenses, while sectors dependent on reliable deliveries brace for further adjustments.