Another decline in the benchmark retail price of diesel used for most fuel surcharges is the most outward sign of a market that is sagging in several places.
The Department of Energy/Energy Information Administration average weekly retail price declined 5.3 cents a gallon Monday, falling to $3.894. It was the fourth consecutive decline and the biggest one-week drop since Dec. 18, and it puts the price at its lowest level since Jan. 29.
Retail prices are generally the last place to see the impact...