Diesel prices saw a slight increase this week, jumping 2.7 cents to $2.652, the fuel's fourth consecutive weekly boost
, according to the Department of Energy.

The average price across the U.S. is still $1.555 below the price during the same week last year, when it hit $4.207. Since hitting a bottom of $2.496 on July 20, trucking's main fuel has gained 15.6 cents over the last four weeks. Prior to that, the average price had fallen 12 cents from June 22.

The highest prices were experienced across the state of California, where it got as high as $2.872. It was followed by the Central Atlantic and West Coast regions, where prices averaged $2.771 and $2.744, respectively. The Midwest and Rocky Mountain regions saw the lowest prices, at $2.623 and $2.633, respectively.

In contrast, the average price of gasoline saw a slight drop from last week, slipping one cent to $2.637. However, prices increased slightly in several regions, including the East Coast, West Coast, and Rocky Mountain.

Meanwhile, benchmark crude for September delivery declined for the second day, falling 76 cents to $66.75 a barrel on the New York Mercantile Exchange, reports the Associated Press.