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NEW YORK — Exxon Mobil won Dec. 10 in a closely watched lawsuit over the costs of climate change, with a judge saying there was no proof the energy giant duped investors about the toll that regulations could take on its business.

IRVING, Texas — Exxon Mobil’s profit tumbled with crude prices down about 15% from where they were last year, though a $300 million boost from a tax-related item helped.

New York accused Exxon Mobil Corp. of trying to discourage potential witnesses in a state lawsuit alleging the oil and gas company misled investors about the financial impact of climate change.

Amazon.com, Exxon Mobil Corp. and Volvo are among more than 700 companies being targeted in a campaign backed by a large group of investors advocating for greater transparency when it comes to environmental impact.

Exxon Mobil Corp. and Saudi Arabia’s state-controlled petrochemicals company formally approved construction of a chemical complex in Texas that will process production from the Permian Basin’s booming oil and natural gas wells.

Exxon Mobil Corp. and Chevron Corp.’s unwillingness to venture beyond their core oil and gas business will face a test May 29 when shareholders vote on climate change proposals at both oil companies’ annual meetings.

NICOSIA, Cyprus — ExxonMobil has made the world’s third-biggest gas find in the past two years off the cost of Cyprus, the country’s government said Feb. 28.

Exxon Mobil Corp. is putting $1 million into a political campaign that, if successful, would effectively spawn a tax tied to the company’s core products.

Exxon Mobil Corp. quit the American Legislative Exchange Council, a lobbying group bankrolled by fossil fuel companies, after a disagreement over climate change policy.

ExxonMobil introduced three Mobil Delvac 1 synthetic heavy-duty diesel engine oils for use in on-highway and off-highway applications, with the expectation that the oils’ promised improvements in fuel efficiency and maintenance will spur greater industry adoption.