Following four weeks of gains, the national average price per gallon of diesel gasoline dropped, according to data issued today by the Department of Energy’s Energy Information Administration (EIA). For the week of August 10, the national average fell 9.1 cents to $5.257, following a 3.5-cent increase, to $5.348, for the week of August 3, and a 17.9-cent increase to $5.313, for the week of July 27. Before the week of May 4, the highest average price in any week since came during the week of May 9, 2022, when it was at $5.623 per gallon. On an annual basis, the national average price per gallon is up $1.503. The average price of WTI crude is at $82.95, up from $76.81 at week ago at this time.