Shell reports unit upset, no fire, at Motiva plant

HOUSTON Dec 21 (Reuters) - Royal Dutch Shell (RDSa.L) said on Tuesday that there was no fire at its joint-venture Motiva Enterprises LLC 235,000 barrel-per-day (bpd) refinery in Convent, Louisiana, on Monday.

A Shell spokesman said a unit that helps production of transportation fuels "experienced an upset resulting in a flare, loud noises and odors. The situation was quickly brought under control and the refinery is running normally."

A report filed late Monday with the U.S. National Response Center had said a caller reported that the refinery was on fire. It was followed by another report that said there was flaring due to a process upset. (Reporting by Kristen Hays)