HOUSTON, Aug 12 (Reuters) - The heavy oil hydrocracking unit(HCU) at Royal Dutch Shell Plc's 209,787 barrel perday (bpd) Convent, Louisiana, refinery was shut after a fireearly on Sunday, sources familiar with plant operations said.
The fire broke out on the 45,000 bpd HCU, call the H-OilUnit, at about 1:30 a.m. local time (0630 GMT) on Sunday, thesources said.(Reporting by Erwin SebaEditing by Susan Thomas)