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Kenworth Truck Co. announced a major milestone at its Renton, Wash., truck plant, and the availability of the Cummins Westport ISX12N Near Zero natural gas engine in certain models.

For years, U.S. producers have counted on Mexico to buy enormous quantities of natural gas from the prolific shale fields in West Texas and elsewhere. The fracking boom has given rise to massive pipeline projects to carry that gas across the border, where energy production has plummeted.

The next battleground for replacing fossil fuel-guzzling vehicles will be U.S. interstate highways, where longhaul trucks keep the economy moving.

China’s shipowners are shunning Iran’s oil, while the OPEC producer is using its own tankers to supply top customers as impending U.S. sanctions threaten to disrupt global crude trade.

The U.S. average retail price of diesel fell last week by 1 cent to $3.207 a gallon.

BYD America and Penske Truck Leasing separately announced they recently joined CharIN, a Berlin-based alliance that is leading a global effort to standardize electric-vehicle charging infrastructure.

Adams Resources & Energy Inc., the Houston-based corporate parent of oil marketing firm GulfMark Energy and petroleum and chemical hauler Service Transport Co., has agreed to acquire Red River Vehicle Holdings, a crude oil transportation firm operating in Oklahoma and Texas, for approximately $10 million.

Eagle Pipe announced it has selected flatbed carrier Beemac Trucking and Logistics to handle all transportation and tubular management services for its new full-service Permian Basin stocking and trucking yard in Midland, Texas.

LINCOLN, Neb. — A federal judge has ordered the U.S. State Department to conduct a more thorough review of the Keystone XL pipeline’s proposed pathway after Nebraska state regulators changed the route, raising the possibility of further delays to a project first proposed in 2008.

A federal judge has postponed the sentencing date for convicted former Pilot Flying J President Mark Hazelwood until Sept. 26.