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Tesla Inc. endured a roughly seven-week shutdown of its most important car plant in the world last quarter, but its brand-new backup factory may have saved the day.

Shares of Workhorse Group Inc., a maker of electric delivery vehicles, are surging as investors bet the Trump administration will want the company and a fellow Ohio-based affiliate to succeed.

Hyliion Inc.’s Class 8 long-range electric powertrain underscores the transition period of multiple alternative powertrains is at hand. And the powertrain, whose batteries are charged by an undersized natural gas engine, could prove to be an important step toward carbon-free over-the-road transportation, experts said.

Jacobs Vehicle Systems’ cylinder deactivation technology delivered a “host of performance-enhancing benefits” in a recent independent validation, the company announced, including raising exhaust temperature and improving fuel consumption.

Saudi Arabia seems to have made good on its promise to cut oil production by a record amount in June.

The national average retail price of diesel rose for the fourth consecutive week, half a cent to $2.43 a gallon, the Energy Information Administration reported June 29.

House Democrats on June 30 will issue an ambitious plan to combat climate change, a move intended to reassure their base of supporters but that’s sure to inflame opponents on the right.

After months of empty roads, lockdowns were easing, and people were getting behind the wheel again. Then the virus struck again.

Chesapeake Energy Corp., the archetype for America’s extraordinary shale-gas fortunes, filed for bankruptcy, becoming one of the biggest victims of a spectacular collapse in energy demand from the virus-induced global lockdown.

Four automakers backing a California effort to curb tailpipe emissions will break with some big rivals in the legal battle over the Trump administration’s relaxation of fuel efficiency standards.