The price of diesel in the United States reached a record $6.23 per gallon on Monday.
According to data from the American Automobile Association, the price surpassed the $6 mark for the first time last week amid a rise in global oil markets.
Brent crude futures were trading at $107.6 as of 06:30 GMT, up 3 percent. The price of West Texas Intermediate crude also rose 2.8 percent to $102.8 per barrel.
U.S. President Donald Trump said last week that high energy prices were linked to U.S. efforts to prevent Iran from acquiring nuclear weapons.