MarkWest Energy Partners, L.P. Announces Public Offering of Common Units

MarkWest Energy Partners, L.P. announced that it is commencing a public offering of 5,900,000 common units. MarkWest intends to grant the underwriters a 30-day option to purchase a maximum of 885,000 additional common units to cover the underwriters’ sale of additional common units, if any. MarkWest intends to use a portion of the net proceeds from the offering and from any exercise of the underwriters’ option to partially fund its ongoing capital expenditure program. BofA Merrill Lynch, Barclays Capital, Citigroup, Morgan Stanley, UBS Investment Bank and Wells Fargo Securities are acting as joint book-running managers for the offering.