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Growing corridors of natural-gas fueling stations, together with a scattering of other ways to power heavy-duty trucks, make up an expanding infrastructure providing alternatives to traditional diesel.

WASHINGTON — Manufacturer Shell Rotella rolled out its new lineup of lubricating oils designed to maintain the hotter-burning diesel engines coming in January 2017 and beyond.

Fleet-tracking companies Teletrac Inc. and Navman Wireless announced a new telematics platform that combines their two product lines into one offering for customers. 

The U.S. average diesel retail price slipped 1.2 cents to $2.402 as inventories of crude oil and refined products remain high, the Department of Energy reported.

Three years ago July 6, an unattended train carrying crude oil from North Dakota rolled down a hill toward the town of Lac-Megantic, Quebec.

The U.S. average diesel retail price slipped 0.9 cent to $2.414, the Department of Energy reported, as high domestic inventories and international output depressed crude oil prices.

Oil trimmed its biggest weekly decline in three months as investors weighed the largest drop in U.S. output since 2013 and a jump in payrolls against a smaller-than-expected stockpile decline.

More than $49 million in grants will be distributed to states for safety inspections, the Pipeline and Hazardous Materials Safety Administration announced July 1.

Refineries across the nation are operating full out and imports are pouring into the East Coast, boosting gasoline supplies to a record.

The U.S. average retail diesel price slipped 0.3 cent to $2.423, the Department of Energy said as the price of crude oil continued to wobble below $50 a barrel.