Diesel’s national average pump price dipped 0.4 cent to $3.95 a gallon, while gasoline took its sixth straight decline, dropping 6.1 cents to $3.652, the Department of Energy said.
Diesel’s downturn followed an increase last week that had been the first since early May, DOE said Monday following its weekly survey of filling stations.
Gasoline has plunged 31.3 cents in the past six weeks, from a more than two-and-a-half-year high $3.956 on May 9, according to DOE records.
Diesel is down 17.4 cents since peaking at $4.124 a gallon on May 2, also a two-and-a-half-year high. It rose 1.4 cents last Monday, the first increase since May 2.
The decline left trucking’s main fuel 98.9 cents more than the same week last year, while gas is now 90.9 cents over a year ago.
Oil rose 25 cents Monday to finish the day on the New York Mercantile Exchange at $93.26 a barrel, Bloomberg reported.
Crude futures closed below $100 a barrel every day last week, the first week of trading since February it has closed under that level every day.
Each week, DOE surveys about 350 diesel filling stations to compile a national snapshot average price.