NEW YORK, May 8 (Reuters) - Marathon Petroleum MPC.N on Thursday reported flaring at its 365,000-barrel-per-day (bpd) refinery in Carson, California, according to a regulatory filing on Thursday.
The flaring event was due to a process upset, the Governor's Office Emergency Services filing said. It released more than 500 pounds of sulfur dioxide into the atmosphere.
A Marathon spokesperson declined to comment on refining operations beyond the filing.
(Reporting by Nicole Jao in New York; Editing by Mark Porter)
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