QuickLinks -- Click here to rapidly navigate through this document
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. |
QuickLinks
SIGNATURESEXHIBIT INDEX