MarkWest Energy Partners LP - 2013-01-10

Closed its public offering of 4.5% senior unsecured notes due 2023. Net proceeds will be used to fund the redemption of senior notes, with the remaining balance used to fund the partnership’s capital expenditure program, for general working capital, and for other general partnership purposes. Barclays, BofA Merrill Lynch, Citigroup, Goldman, Sachs & Co., J.P. Morgan, Morgan Stanley, Natixis, RBC Capital Markets, SunTrust Robinson Humphrey, UBS Investment Bank, US Bancorp, and Wells Fargo Securities were joint book-running managers.