On August 13, 2026 in Nortrees, Texas, a person readies to refuel their semi-truck, facing elevated diesel prices. Global fuel supply chains are under pressure from international conflicts. Iranian tensions have disrupted shipping through the Strait of Hormuz. Ukrainian attacks on Russian refineries have further strained regional fuel exports.
According to AAA, diesel prices have hit a record high nationwide, averaging $5.85 per gallon. This surpasses the June 2022 peak of $5.81 following Russia’s Ukraine invasion. Diesel is vital to the U.S. industrial supply chain, powering trains, tractors, and trucks. Patrick De Haan, petroleum analyst at GasBuddy, emphasizes the economic impact, noting that heightened diesel costs will have widespread repercussions.
The price surge affects various sectors reliant on diesel, including agriculture. Higher diesel costs could increase farming expenses, raising food prices. Transportation expenses also rise with costlier diesel, affecting goods pricing. School districts face budget pressures, with 90% of the 500,000 school buses using diesel as the academic year begins.
Amid ongoing inflation, the latest CPI data from August shows a 3.4% rise over the past year. Elevated energy costs are straining budgets, particularly for low-income households, as indicated by the Federal Reserve Bank of New York. Diesel supply pressures extend beyond Strait of Hormuz restrictions. Asian refineries are limiting diesel exports, tightening global supply. Ukrainian attacks on Russian refineries have led to reduced Russian diesel exports, with imports from nations like India, Kazakhstan, and Belarus.
Jet fuel prices, intensified by the Iran conflict, further influence diesel production. Jaime Brito of Dow Jones Energy explains U.S. refiners prioritizing jet fuel over diesel, diminishing diesel availability.
Diesel powers the industrial economy, moving goods from farms to supermarkets. Both diesel and gasoline originate from crude oil but differ in their refining and usage. Seasonal trends could maintain high diesel prices for months. Demand peaks during fall harvest and winter heating periods, with heating oil nearly chemically identical to diesel, exacerbating cost increases.