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The U.S. average diesel price took a break last week from its dizzying climb, dipping 1.6 cents a gallon to $4.707, the Department of Energy reported.

Global Positioning System location-finding and navigation services are generating increasing revenue as the satellite-based technology is embedded in a wider range of mobile devices, according to a report from the European firm ABI Research.

Teamsters union members employed at car hauler Performance Transportation Services went on strike against the company Monday to enforce the union’s bargaining table demands, the union said.

Canadian transportation firm Mullen Group Income Fund said Thursday it would buy the transport unit of Essential Energy Services Trust for C$135 million.

American Trucking Associations said Wednesday that it supports the U.S. Commodity Futures Trading Commission for taking steps toward increasing transparency of the energy futures markets.

An index of the U.S. economy’s service sector slipped in May from a month earlier but continued to show expansion, the Institute for Supply Management said Wednesday.

The Ontario Trucking Association said that a joint meeting this week of the Ontario and Quebec government cabinets moved them closer to accord on trucking issues such as implementing speed limiter legislation and allowing for longer combination vehicles.

First-quarter U.S. worker productivity rose 2.6% from the previous quarter, up from an earlier estimate, the Labor Department said Wednesday.

Just days after a new report recommended improvements to drug-testing programs that could better identify illegal drug users and keep them off the road, Reps. Jim Oberstar (D-Minn.), John Mica (R-Fla.) and Peter DeFazio (D-Ore.) announced their intention to introduce legislation aimed at establishing a national clearinghouse of positive drug-test results.