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"MarkWest Energy Partners Announces Public Offering of $1.0 Billion of Senior Notes Due 2023  DENVER--(BUSINESS WIRE)-- MarkWest Energy Partners, L.P. (NYS: MWE) (the &amp;quot;Partnership&amp;quot;) and"^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.aol.com/article/2013/01/07/markwest-energy-partners-announces-public-offering/20418714/?gen=1>