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The anticipated proliferation of driverless cars will bring a brand new problem for the world’s biggest oil companies -- how to advertise to a machine.

An energy transition is underway. Solar and wind are being added in ever-greater numbers. Electric vehicles are becoming more commonplace. Meanwhile, policy makers are grappling with the right mix of policies to pay for it all.

Cie. Maritime Belge SA has built the first commercial ship that runs on hydrogen and produces zero pollution, taking the world a step closer to cargo without emissions.

CHATTANOOGA, Tenn. — Former Pilot Flying J sales executive Brian Mosher told jurors Nov. 28 that federal agents and a prosecutor showed up on his doorstep on Tax Day 2013 and asked him to make a phone call to the chief executive officer of his company.

CHATTANOOGA, Tenn. — Brian Mosher considered himself a master at the game of defrauding trucking company customers, and he told jurors Nov. 27 he presented details of it to his bosses, including former Pilot Flying J President Mark Hazelwood and current CEO Jimmy Haslam.

Tesla Inc. said the expected price for its all-electric Class 8 truck will range from $150,000 to $200,000.

Nikola Motor Co. plans to locate its emerging network of hydrogen fueling stations to accommodate the logistics network of a major manufacturer, according to the truck maker, which did not identify the manufacturer.

Ryder System Inc. awarded a four-year fueling contract to Clean Energy Fuels Corp. to supply Ryder’s fleet of liquefied natural gas heavy-duty trucks serving Toyota Motor Manufacturing’s plant in Georgetown, Ky., Toyota’s largest production facility in North America.

Elon Musk knows how to make promises. Even by his own standards, the promises made last week while introducing two new Tesla vehicles—the heavy-duty Semi Truck and the speedy Roadster—are monuments of envelope pushing. To deliver, according to close observers of battery technology, Tesla would have to far exceed what is currently thought possible.