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Exhibit 23.1
Consent of Independent Registered Public Accounting Firm
The Board of Directors
MarkWest Energy GP, L.L.C.:
We consent to the incorporation by reference in Amendment No. 1 to the registration statement on Form S-4 (No. 333-147370) of MarkWest Energy Partners, L.P., of our report dated June 17, 2005 with respect to the consolidated statements of operations, comprehensive income, changes in capital, and cash flows for the year ended December 31, 2004, which report appears in the December 31, 2006 annual report on Form 10-K/A of MarkWest Energy Partners, L.P. and to the reference of our firm under the heading "Experts" in the prospectus.
KPMG LLP |
Denver, Colorado
December 20, 2007
Consent of Independent Registered Public Accounting Firm