(Updates with Pemex statement)
MEXICO CITY Jan 12 An accident at the Ciudad
Madero refinery of Mexican state-owned oil firm Pemex
killed one worker on Thursday, but the incident will not affect
production, a company representative said.
Pemex said that three workers were exposed to hydrogen
sulfide released during maintenance of one of the refinery's
diesel plants. One of the three died.
The Madero plant, the smallest of Pemex's six domestic
refineries, is near the port of Tampico on the Gulf coast and
can process as much 186,000 barrels of crude oil per day.
(Reporting by David Alire Garcia; Editing by Tom Brown and Lisa