April 24 (Reuters) - Shell Oil Co reported plannedmaintenance was under way at its plant in Deer Park, Texas,according to a message posted on a community information line onThursday.
The maintenance activity might cause flaring, theinformation line said.
The company had earlier said it identified a crack inprocess piping at the plant's refinery on Thursday.
The facility houses a 327,000 barrel-per-day (bpd) refineryand a chemical plant.
It was not immediately clear whether the maintenance wasunder way at the chemical plant or the refinery.
The Deer Park refinery is a 50-50 joint venture of Shell andMexico's national oil company, Pemex.(For refinery outages in the Reuters Oil FundamentalsDatabasesee http://bond.views.session.rservices.com/CE/ or go toOFD/INFO) (Reporting by Anupam Chatterjee in Bangalore)