MarkWest Energy Partners L.P. - 2012-08-07

MarkWest Energy Partners and its subsidiary MarkWest Energy Finance Corp. announced that they intend to commence a public offering of $500,000,000 in aggregate principal amount of senior unsecured notes due 2023. The Partnership intends to use the net proceeds from the Notes offering to repay borrowings under its revolving credit facility and for general partnership purposes, including, but not limited to, funding capital expenditures and general working capital. Wells Fargo Securities, BofA Merrill Lynch, Barclays, Citigroup, Goldman, Sachs & Co., J.P. Morgan, RBC Capital Markets, UBS Investment Bank and US Bancorp are acting as joint book-running managers for the Notes offering.