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President Joe Biden wants electric vehicles to account for 50% of new car sales by 2030. But to meet that target he may have to sell the cars to a skeptical demographic: Donald Trump voters.

Werner Enterprises and Cummins Inc. announced Werner will begin validation and integration of Cummins’ recently announced 15-liter natural gas and 15-liter hydrogen internal combustion engines in its vehicles.

NEW YORK — Exxon Mobil is restructuring its business into three divisions and moving its headquarters 250 miles south from Irving, Texas, to its campus north of Houston.

Earthstone Energy Inc. agreed to buy closely held oil and gas producer Bighorn Permian Resources for $860 million.

Chevron Corp. posted disappointing profits after slumping values for some long-held fields hurt the oil giant’s ability to take full advantage of surging energy prices.

The French-Japanese auto alliance of Renault and Nissan plans to invest $26 billion in electric vehicle technology over the next five years, the companies said Jan. 27.

A professional answers our questions about challenge and innovations in his department.

A slump in global diesel stockpiles has left the market vulnerable to price spikes.

A D.C. court of appeals ruling exempts trailers from federal greenhouse gas and fuel-­efficiency rules, but California mandates will create the same technology standards for many fleets, while others are adopting the technology because of the economic case for it.

Tesla Inc. pushed back introductions of new models to next year, wagering the best way to continue expanding sales in the face of supply chain challenges will be to further leverage a narrow lineup of big sellers.