HOUSTON, May 20 (Reuters) - Motiva Enterprises was restarting the 60,000-barrel- per-day (bpd) hydrocrackingunit at its 600,000-bpd Port Arthur, Texas, refinery on Tuesdayafter it was shut by a malfunction on Saturday, said sourcesfamiliar with operations at the refinery.
Three of the refinery's sulfur recovery units returned tonormal operation on Monday night, the sources said. The unitswere shut by a malfunction on Monday morning.
A Motiva spokeswoman declined to discuss operations at therefinery on Tuesday. (Reporting by Erwin Seba; Editing by Jeffrey Benkoe)