(Adds Motiva no comment, flaring, lube oil production.)
HOUSTON, Feb 21 (Reuters) - The 195,000 barrel per day (bpd)crude distillation unit at Motiva Enterprises' 600,250 bpd Port Arthur, Texas, refinery was running at aminimal production level following a restart on Friday night,said sources familiar with plant operations.
The unit was shut on Tuesday to repair a leaking pipe, saidthe sources. The CDU was restarted early on Friday and then shutdown due to another leak Friday afternoon. The unit returned toproduction on Friday night.
A Motiva spokeswoman declined to discuss refineryoperations.
"For reasons of commercial confidentiality, we do notprovide details about the operational status of individual unitsor information on supply," said Motiva spokeswoman Kelly op deWeegh.
The refinery did use its safety flare system on Saturday dueto a malfunction on 19,200 bpd lube oil hydrocracker afterreturning the lube oil production stream to normal operation onSaturday, the sources said.
Members of the United Steelworkers union (USW) began astrike early on Saturday morning at the Port Arthur refinery,which is the nation's largest. Motiva is a 50-50 joint venturebetween Royal Dutch Shell Plc and Saudi Aramco
(Reporting by Erwin Seba, Editing by Franklin Paul)