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.