Contact Us

MarkWest Energy Partners, L.P. welcomes inquiries from investors, news media, business associations, and others interested in the operations of the company. To assist us in responding as quickly as possible, please direct your inquiry to the appropriate contact.

General Inquiries/Corporate Headquarters

MarkWest Energy Partners, L.P.

1515 Arapahoe Street
Tower 1, Suite 1600
Denver, CO 80202-2126
Toll Free: (800) 730-8388
Office: (303) 925-9200
Fax: (303) 290-8769

Investor Relations

Please refer to the Investor Relations portion of our website for unitholder and financial information and to order company information packets.  If you need additional information, please contact us at  (866) 858-0482 or investorrelations@markwest.com.

Media Inquiries

Please direct all media inquiries to Dan Campbell, Vice President of Finance & Treasurer at (303) 542-0639 or dcampbell@markwest.com. For media inquiries about our activities in the Marcellus Shale, please contact Rob McHale, Environmental Compliance Coordinator at (724) 416-0135 or rmchale@markwest.com.

Unitholder Services

Stock Transfer Agent and Registrar

Wells Fargo Shareowner Services
161 North Concord Exchange
South St. Paul, MN 55075
Phone: (800) 468-9716