The Diesel average fell again for the 10th consecutive week to $2.668 per gallon, a difference of 0.055 cents cheaper according to a report from the Department of Energy on Aug. 3. From this same time last year, diesel is $1.185 less.
The lowest diesel prices can be found in the Gulf Coast region at $2.536 a gallon. The Midwest region ranks in at a close second at $2.561 per gallon. The highest diesel prices are again in the California region, averaging $3.024 a gallon. The California region is the only diesel average over $3.
The $2.668 per gallon average is the lowest price for diesel since October 12, 2009, when diesel was $2.600. The 10-week stretch is the longest period of consecutive falling prices in 2015 and the longest such streak since a 12-week period from Nov. 10, 2014, to Feb. 2, 2015. During that span, the diesel average fell 84.6 cents.