Marathon overhauling Galveston Bay Refinery, Texas FCCU, sources say

HOUSTON, Jan 13 (Reuters) - Marathon Petroleum Corp MPC.N is overhauling the gasoline-producing fluidic catalytic cracker 3 (FCC-3) and two hydrotreaters at its 631,000 barrel-per-day (bpd) Galveston Bay Refinery in Texas City, Texas, said people familiar with plant operations.

The 140,000-bpd FCC-3 is scheduled to be shut for up to eight weeks for the overhaul, the sources said.