MarkWest Energy Partners to Present at the National Association of...

MarkWest Energy Partners, L.P. announced today that Frank Semple, Chairman, President and Chief Executive Officer, will present at the National Association of Publicly Traded Partnerships 2013 Master Limited Partnership Investor Conference at 10:45 a.m. Eastern Time on Wednesday, May 22, 2013, at the Hilton Stamford Hotel in Stamford, Connecticut.

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