Pump prices for US diesel averaged $5.78 per gallon on Thursday, the highest in more than four years, according to the American Automobile Association, as global supplies remain tight amid persisting geopolitical tensions.
The national average came close to the mid-2022 peak of $5.82/gal, driven by the Russia-Ukraine conflict, and was significantly higher than the previous year's $3.70/gal.
Distillate stocks in the US dropped to about 104.2 million barrels in the week ended Aug. 28, an all-time low for this time of the year, data from the US Energy Information Administration showed.
Global supplies tightened mainly due to geopolitical tensions that curbed shipments from the Middle East and Russia.
Flow through the Strait of Hormuz remains largely restricted amid lingering conflict between the US and Iran. Additionally, shipments from Russia dwindled following an export ban due to a supply shortage, caused by Ukrainian attacks on energy facilities.
To help lower fuel prices in the near term, the government recently approved an early switch to winter-grade gasoline and expanded biofuel exemptions.
The administration also announced massive oil deals with Venezuela and held discussions with refining executives about capacity expansion, although these measures might impact prices only in the long term.