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MarkWest Energy raises quarterly dividend 4c to 83c per share

MarkWest Energy announced that the board of the General Partner of MarkWest Energy Partners, declared a cash distribution of 83c per common unit for Q1, for an implied annual rate of $3.32 per common unit. The Q1 distribution represents an increase of 4c per common unit, or 5.1%, compared to the 1Q12 distribution.