Marathon Wilmington, CA, Refinery Reports Unplanned Flaring

MARATHON PETROLEUM CORP MPC:

• REPORTS UNPLANNED FLARING EVENT AT WILMINGTON, CA, REFINERY

SOURCE: SOUTH COAST AIR QUALITY MANAGEMENT DISTRICT FILING

MARATHON'S LOS ANGELES REFINERY INCLUDES WILMINGTON AND CARSON REFINING UNITS THAT HAVE A JOINT CAPACITY OF 363,000 BARRELS PER DAY