What the record-high cost of diesel means for you
Most Americans don't buy diesel, but the soaring costs of trucking and shipping goods have cost the average household $350.
Diesel prices have skyrocketed to a record high of $5.94 per gallon, according to AAA. This represents a significant increase of $2.27 compared to late February, when tensions with Iran had already begun to affect fuel costs. The jump in prices has been particularly pronounced in California, where diesel now costs an eye-watering $7.87 per gallon.
Most Americans don't directly purchase diesel fuel, but it underpins the prices of virtually everything they buy, from groceries to clothing. The impact of these high diesel prices extends far beyond the fuel pump. Trucks and ships that transport goods rely on diesel, and the increased costs are passed on to consumers in the form of higher prices at the store. The last time diesel prices reached such dizzying heights was in 2022, when the invasion of Ukraine pushed the cost to $5.82 per gallon.
The current surge in diesel prices is largely attributable to the ongoing war in the Strait of Hormuz. This crucial chokepoint, through which 10 percent of seaborne diesel once passed, has been effectively closed due to the conflict, creating a severe supply shortage. David Ortega, a professor of food economics at Michigan State University, explained that early on, much of the cost increase gets absorbed by the supply chain through existing freight contracts and retailer margins.
However, as fuel surcharges become more prevalent, a growing portion of those costs find their way to the grocery store.
The consequences of this fuel price surge are hitting American consumers hard. According to a Brown University tracker, the rising cost of diesel has cost U.S. consumers an additional $46 billion, or about $350 per household. While this figure is slightly lower than the $55 billion impact of rising gasoline prices, the 61 percent jump in diesel prices has outpaced the 41 percent increase in gas prices.
Patrick De Haan, head of petroleum analysis at GasBuddy, noted that diesel is currently more affected by geopolitical turmoil than gasoline. The war in Iran and Ukraine's attacks on Russian oil refineries have both contributed to the upward pressure on diesel prices.
The situation is further exacerbated by the fact that U.S. refineries are operating at full capacity, leaving little room for additional production to offset the shortfall. Domestic inventories of diesel are at their lowest level since 1982, according to data from the Energy Information Administration. This shortage is particularly concerning as the autumn season approaches, when farmers and truckers typically use more diesel fuel.
The winter months are expected to bring additional challenges. Since heating oil is essentially a type of diesel, households across the country will likely face unprecedented heating bills. President Trump's administration has even threatened to eliminate the Low Income Home Energy Assistance Program, which helps low-income households afford their fuel bills, potentially adding to the burden on vulnerable families, especially in the Northeast.
While the wars in Iran and Ukraine could theoretically end tomorrow, it would take weeks or months for fuel prices to stabilize and for diesel inventories to recover. De Haan emphasized that the full decline in diesel prices will only occur after inventories have recovered. Until then, consumers can expect to continue bearing the financial impact of these geopolitical conflicts.
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