8-K

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UNITED STATES
SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

FORM 8-K

CURRENT REPORT

PURSUANT TO SECTION 13 OR 15(d) OF
THE SECURITIES EXCHANGE ACT OF 1934

Date of Report (Date of earliest event reported) July 11, 2003

MARKWEST HYDROCARBON, INC.
(Exact name of registrant as specified in its charter)

Delaware	1-11566	84-1352233
(State or other jurisdiction of incorporation or organization)	(Commission File Number)	(I.R.S. Employer Identification Number)

155 Inverness Drive West, Suite 200, Englewood, CO	80112-5000
(Address of principal executive offices)	(Zip Code)

Registrant's telephone number, including area code: 303-290-8700

N/A
(Former name or former address, if changed since last report)

ITEM 5. OTHER EVENTS AND REQUIRED FD DISCLOSURE

        On July 11, 2003, MarkWest Hydrocarbon, Inc. issued a press release announcing that on July 10, 2003, its Board of Directors declared a stock dividend of one share of MarkWest's common stock for each ten shares of common stock held by MarkWest's common stockholders of record as of the close of business on July 31, 2003.

ITEM 7. FINANCIAL STATEMENTS, PRO FORMA FINANCIAL INFORMATION AND EXHIBITS

(a) Financial Statements of Businesses Acquired.

        N/A

(b) Pro forma Financial Information.

        N/A

(c) Exhibits.

Exhibit No.	Exhibit Description
99.1	Press Release dated July 11, 2003.

SIGNATURES

        Pursuant to the requirements of the Securities and Exchange Act of 1934, the Registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.

	MARKWEST HYDROCARBON, INC.                 (Registrant)
Date: July 15, 2003	By:	/s/  DONALD C. HEPPERMANN Donald C. Heppermann Senior Vice President and Chief Financial Officer

EXHIBIT INDEX

Exhibit No.	Exhibit Description
99.1	Press Release dated July 11, 2003.

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ITEM 5. OTHER EVENTS AND REQUIRED FD DISCLOSURE
ITEM 7. FINANCIAL STATEMENTS, PRO FORMA FINANCIAL INFORMATION AND EXHIBITS

SIGNATURES
EXHIBIT INDEX

EX-99.1

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Exhibit 99.1

MARKWEST HYDROCARBON ANNOUNCES STOCK DIVIDEND

        DENVER—July 11, 2003—MarkWest Hydrocarbon, Inc. (AMEX: MWP), today announced that on July 10, 2003, its Board of Directors declared a stock dividend of one share of MarkWest's common stock for each ten shares of common stock held by MarkWest's common stockholders. The stock dividend is to be paid on August 11, 2003, to the stockholders of record as of the close of business on July 31, 2003. The ex-dividend date is July 29, 2003. The Company does not intend to issue fractional shares, and each stockholder will be paid in cash in lieu of fractional shares, if any.

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MarkWest Hydrocarbon, Inc. (AMEX: MWP), operates in two business segments: exploration and production of natural gas, and midstream services. The exploration and production segment produces natural gas in Alberta, Canada, and in Michigan. In the midstream services segment, which is principally conducted through our 43.6 percent-owned affiliate, MarkWest Energy Partners, L.P. (AMEX: MWE), we gather natural gas from the wellhead and process the natural gas to remove impurities and the valuable natural gas liquids (NGLs). MarkWest Hydrocarbon markets the NGLs.

This press release includes "forward-looking statements" within the meaning of Section 27A of the Securities Act of 1933, as amended, and Section 21E of the Securities Exchange Act of 1934, as amended. All statements other than statements of historical facts included or incorporated herein may constitute forward-looking statements. Although we believe that the expectations reflected in the forward-looking statements are reasonable, we can give no assurance that such expectations will prove to be correct. The forward-looking statements involve risks and uncertainties that affect our operations, financial performance and other factors as discussed in our filings with the Securities and Exchange Commission. Among the factors that could cause results to differ materially are those risks discussed in our Form 10-K for the year ended December 31, 2002, and our Form 10-Q for the period ended March 31, 2003.

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Exhibit 99.1