MarkWest Energy Partners L.P. - 2012-08-14

Has priced a public offering of 6,000,000 common units at $50.72 per common unit. MarkWest intends to use the net proceeds from the offering to fund its capital expenditure program, for general working capital and for other general partnership purposes. Barclays, BofA Merrill Lynch, Citigroup, Goldman, Sachs & Co., UBS Investment Bank, J.P. Morgan and RBC Capital Markets are acting as joint book-running managers for the offering.