The average price of diesel fuel in the United States reached $6 per gallon for the first time

The average cost of diesel fuel in the United States reached $6 per gallon (about 3.8 liters) for the first time in history, surpassing the record set a week earlier, according to gas price tracking service GasBuddy.

"The national average price of diesel fuel rose to $6 per gallon for the first time in history, a level the cost of diesel has never before reached, with the new all-time high coming less than a week after the previous record of $5.85," the service writes.

As GasBuddy analysts note, at $6 per gallon, diesel fuel in the United States has risen in price by about $2.3 compared to last year, when the national average price was about $3.7.

The price of diesel fuel directly affects the cost of goods as it fuels agricultural equipment and heavy-duty vehicles used in supply chains.