MarkWest Energy Partners Announces Public Offering of $500 Million of Senior Notes Due 2023

MarkWest Energy Partners, L.P. MWE (the “Partnership”) and its subsidiary MarkWest Energy Finance Corporation announced today that they intend to commence a public offering of $500,000,000 in aggregate principal amount of senior unsecured notes due 2023 (the “Notes”). 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.