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California environmental regulators have issued an accelerated plan to mandate that truck manufacturers transition a portion of their sales from heavy diesel trucks to electric zero-emission vehicles beginning in 2024.

TravelCenters of America reported a net loss and lower revenue in the first quarter as operations were limited by the novel coronavirus pandemic and unseasonably mild weather.

Tesla Inc. pushed back first deliveries of its Semi commercial tractor into next year, making the truck two years behind its original schedule.

The national average price of diesel fuel continued its steady slide, falling 3.8 cents to $2.399 a gallon, the Energy Information Administration reported May 4.

U.S. stocks kicked off the week on a positive note, rallying late in the session to close higher as crude oil gained for a fourth consecutive day.

Oil reversed losses as the pace of stockpile builds at the key U.S. storage hub slowed last week.

NEW YORK — Profits fell at ExxonMobil as the global pandemic began to erode oil demand.

Volkswagen AG’s use of technology that helped it to cheat on diesel engine pollution tests violated European Union rules, an EU legal adviser warned in the second setback for the automaker at the bloc’s highest court this month.

Oil rallied on optimism that consumption could gradually return as major producers continue to cut output to counter a global glut.