HOUSTON, March 6 (Reuters) - The gasoline-producing unit atRoyal Dutch Shell Plc's 218,200 barrel per day (bpd)Norco, Louisiana refinery will be shut on Thursday, sourcesfamiliar with plant operations said on Wednesday.
Shell began a planned overhaul of the gasoline-producing112,000 bpd Residual Catalytic Cracking Unit (RCCU) on Wednesdayand the unit be out of production on Thursday for a scheduledtwo months of work, the sources said.(Reporting by Erwin Seba; editing by Diane Craft)