(Reuters) - Citgo Petroleum Corp reported a flare gas compressor shutdown on Sunday at its 167,000 barrel-per-day refinery in Lemont, Illinois, according to a filing with the National Response Center.
There could be a potential release of carbon dioxide and a mixture of gases, the filing said.
The company is the U.S. refining subsidiary of Venezuela's national oil firm Petroleos de Venezuela S.A.
(For refinery outages in the Reuters Oil Fundamentals Database see http://bond.views.session.rservices.com/CE/ or go to)
(Reporting by Naveen Arul in Bangalore)