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The average price of diesel increased by 3.3 cents a gallon nationwide to $2.559, according to weekly data released by the U.S. Energy Information Administration on Dec. 14. Still, trucking’s primary fuel costs 48.7 cents less than it did a year ago.

Toyota Motor Corp. unveiled a second-generation fuel cell system that is nearing the point when it could be offered to heavy-duty truck builders looking to build hydrogen-powered tractors.

Oil just managed a weekly gain as an impasse in Washington over pandemic relief dimmed chances of an imminent boost to demand.

SAN RAMON, Calif. — General Motors’ self-driving car company is sending out vehicles with nobody behind the wheel in San Francisco as it navigates its way toward launching a robotic taxi service that would compete against Uber and Lyft in the hometown of the leading ride-hailing services.

Tesla Inc. was ordered by a local court to halt tree clearance for its new factory near Berlin after complaints from two environmental groups, potentially disrupting progress in completing the company’s first European gigafactory.

The U.S. Energy Information Administration’s weekly survey published Dec. 7 showed trucking’s primary fuel increased 2.4 cents nationwide and now costs $2.526 a gallon.

JEFFERSON CITY, Mo. — Two years after Missouri voters decisively rejected a proposal to raise Missouri’s gasoline tax, the leader of the Senate wants a do-over.

Oil fell from its strongest close in nine months, hampered by weaker risk sentiment in global markets.

The Organization of Petroleum Exporting Countries and its allies reached an agreement to ease its oil-output cuts next year more gradually than previously planned, giving a fragile market more time to absorb the extra supply.

Carmakers that signed up for President Donald Trump’s battle with California over auto emissions are now being pressured to join a peace plan brought on by the election of Joe Biden.