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Even while oil industry analysts are assessing the damage to Saudi Arabia’s oil field from an aerial attack Sept. 14, the nationwide price of diesel fuel climbed by 1.6 cents to $2.987 per gallon, according to the U.S. Department of Energy report Sept. 16.

U.S. pipeline giant Energy Transfer agreed to acquire rival operator SemGroup Corp. for about $1.35 billion in a stock and cash deal, building out billionaire Kelcy Warren’s empire even as investors demand financial discipline.

CANBERRA, Australia — Volkswagen has agreed to pay up to 127 million Australian dollars ($87 million) to settle an Australian class action stemming from the 2015 diesel emissions scandal, the German automaker and a lawyer said Sept. 16.

DUBAI, United Arab Emirates — Global energy prices spiked Sept. 16 after a weekend attack on key oil facilities in Saudi Arabia caused the worst disruption to world supplies on record, an assault for which President Donald Trump warned that the U.S. was “locked and loaded” to respond.

First there was derision. Then mockery turned into admiration. Now a battle is unfolding between the most revered names in the automobile world, Porsche and Tesla Inc., on one of the world’s most challenging racetracks.

Gas prices could look a little different across county lines under legislation proposed in the Michigan House this week.

President Donald Trump has tentatively agreed to a plan for bolstering ethanol and biodiesel, amid pressure from Midwest U.S. senators who warned the president that without action, he risks votes in next year’s election.

DUBLIN, Va. — The next generation of the 13-liter turbo compound engine from Volvo Trucks North America offers improved fuel economy over the current model, the company announced.

The Trump administration has decided to advance a plan to strip California of its power to regulate greenhouse gas emissions from automobiles on its own.

WASHINGTON — As policymakers evaluate viable long-term approaches to fund the country’s transportation network, a trucking industry executive warned against relying on tolling.