IR Contacts
| Stock Transfer Agent and Registrar |
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Please send address changes in writing to: Wells Fargo Shareowner Services 161 North Concord Exchange South St. Paul, Minnesota 55075 Telephone: (800) 468-9716 |
| Investment Community |
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Please direct investor relations inquiries to: MarkWest Energy Partners, L.P. c/o Investor Relations 1515 Arapahoe Street Tower 1, Suite 1600 Denver, Colorado 80202 Telephone: (866) 858-0482 Email Address: investorrelations@markwest.com |