DIARY-U.S. refinery operations-Marathon Petroleum shuts Kentucky refinery after power outage

July 24 (Reuters) - The following is a list of refinery incidents reported in the United States on July 21-23: * Monroe Energy delays Trainer, Pa. refinery-wide shutdown -sources * Shell reports planned work at Deer Park, Texas facility * PES reports minor fire at Point Breeze, Phila. refinery on July 17 * HollyFrontier begins restart of FCC at Kansas refinery -source