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Canada’s beleaguered energy sector suffered another morale blow as Encana Corp. — one of its marquee companies that was born out of the 19th-century railway boom — announced plans to move its headquarters to the U.S. and drop the link to Canada from its name.

Alberta took a step toward easing the pain of its crude-production caps by allowing oil companies to exceed output limits if they ship the extra production by rail.

RIYADH, Saudi Arabia — The long-planned initial public offering of a sliver of Saudi Arabia’s state-run oil giant Saudi Aramco will see shares traded on Riyadh’s stock exchange in December, a Saudi-owned satellite news channel reported Oct. 29 as the kingdom’s marquee investment forum got underway.

WASHINGTON — General Motors, Fiat Chrysler, Toyota and many others in the auto industry are siding with the Trump administration in a lawsuit over whether California has the right to set its own greenhouse gas emissions and fuel-economy standards.

The U.S. average retail price of diesel rose 1.4 cents to $3.064 a gallon, the Department of Energy reported Oct. 28.

WASHINGTON — Senate Minority Leader Chuck Schumer is proposing a $462 billion trade-in program to get millions of Americans out of climate-damaging gas vehicles and into electric or hybrid cars over the next decade.

A new study by the National Academy of Sciences urges federal regulators to conduct an “interim evaluation” of the federal medium- and heavy-duty truck Phase 2 greenhouse gas and economy rule with an eye toward more stringent standards.

Transit officials in San Diego are rolling out a new $12.5 million pilot program to test the region’s first electric buses.

Petroleos Mexicanos imported less gasoline and diesel in the second quarter as its refineries produced more fuel and the government cracked down on fuel theft.