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An Ohio judge ordered Pilot Flying J CEO Jimmy Haslam to give a deposition Dec. 13 in connection with a lawsuit filed against the nation’s largest truck-stop chain by two carriers that have alleged they were victims of a massive diesel fuel rebate fraud.

SALT LAKE CITY — Deliveries of the Nikola One hydrogen-electric Class 8 tractor produced by Nikola Motor Co. will begin in 2020, and the company has moved forward with plans to design a day cab, called the Nikola Two. People in trucking said the technology has the potential to change the industry.

OPEC’s first production cuts in eight years are intended to shrink the world’s bloated oil stockpiles back to a normal level, paving the way for prices to rise to more than $60 a barrel.

OPEC clinched a deal to curtail oil supply, confounding skeptics as the need to clear a record global crude glut — and prove the group’s credibility — brought its first cuts in eight years.

Toyota is exploring a “semi-trailer truck application” of hydrogen fuel cell technology.

The U.S. average retail price of diesel slid 0.1 cent to $2.420 a gallon, according to the Department of Energy, as crude prices reflected the uncertainty global production would be slowed.

A sharp decline in registrations of new trucks is taking the air out of what has been a remarkably robust period of growth in the size of the nation’s Class 8 fleet.

The U.S. average retail price of diesel fell 2.2 cents to $2.421 a gallon, according to the Department of Energy, as crude oil prices crept higher.