10:04 ET -- Chevron is one of the most mentioned companies in the U.S. across all news items in the last 12 hours, according to Factiva data. The energy giant warned that its blockbuster deal to buy Hess could be upended by Exxon Mobil and China's Cnooc, who are asserting that they have a right to counter Chevron's bid for Hess's stake in a prolific oil project off Guyana. Dow Jones & Co. owns Factiva. (colin.kellaher@wsj.com)

(END) Dow Jones Newswires

02-27-24 1019ET