At least 15 U.S. oil refineries plan maintenance ranging from two to 11 weeks through May, tallies by Reuters and refining intelligence firm IIR Energy show.
By mid-February, U.S. refiners will drop some 1.4 million barrels per day of processing capacity, double the five-year average, according to IIR.
PBF Energy's (PBF.N) Toledo, Ohio, refinery remains largely offline from December, according to two people familiar with the matter.
Heating oil margins are $58 per barrel, more than double the year-ago level.
U.S. gasoline inventories are 226.8 million barrels, compared to 240.7 million at this time last year, while refinery capacity is 8% lower than before storm Elliott.