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February 27, 2004
Securities and Exchange Commission
450 Fifth Street, N.W.
Washington, D.C. 20549
Commissioners:
We have read the statements made by Markwest Hydrocarbon, Inc. (copy attached), which we understand will be filed with the Commission, pursuant to Item 4 of Form 8-K as part of the Company's Form 8-K dated February 23, 2004. We agree with the statements concerning our Firm in such Form 8-K.
Very truly yours,
PricewaterhouseCoopers LLP