Jan 7 - Exxon Mobil ( XOM ) said on Tuesday changes in
oil prices would ease its fourth-quarter upstream earnings by
$500 million to $900 million.
The industry bellwether had posted $6.16 billion in upstream
earnings for the third quarter, and a net profit of $7.63
billion in the year-ago fourth quarter.
(Reporting by Tanay Dhumal and Vallari Srivastava in Bengaluru;
Editing by Devika Syamnath)