NEW YORK, March 6 (Reuters) - Marathon MPC.N will begin planned maintenance activities on units at its 255,000-barrel-per-day refinery in Robinson, Illinois on March 18, a source familiar with plant operations said on Thursday.
The maintenance work is expected to last about two months, the source said.
A Marathon spokesperson declined to comment on refinery operations.
(Reporting by Nicole Jao in New York; Editing by Chris Reese)
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