SEC FORM 4

SEC Form 4

FORM 4

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

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940

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Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

1. Name and Address of Reporting Person^*

FOX JOHN M

(Last)

(First)

(Middle)

C/O MARKWEST HYDROCARBON, INC.

155 INVERNESS DRIVE WEST, STE. 200

(Street)

ENGLEWOOD

80112

(City)

(State)

(Zip)

2. Issuer Name and Ticker or Trading Symbol
MARKWEST HYDROCARBON INC [ MWP ]

5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)

X	Director	X	10% Owner
X	Officer (give title below)		Other (specify below)
	President, CEO

3. Date of Earliest Transaction (Month/Day/Year)
09/05/2003

4. If Amendment, Date of Original Filed (Month/Day/Year)

6. Individual or Joint/Group Filing (Check Applicable Line)

X	Form filed by One Reporting Person
	Form filed by More than One Reporting Person

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	3. Transaction Code (Instr. 8)		4. Securities Acquired (A) or Disposed Of (D) (Instr. 3, 4 and 5)			5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4)	6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	Code	V	Amount	(A) or (D)	Price		6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
Common Stock	09/05/2003		P		7,000	A	$7	140,615⁽¹⁾	D
Common Stock	09/17/2003		P		7,000	A	$7.05	147,615⁽¹⁾	D
Common Stock								189,091⁽¹⁾	I	By Crabtree Trust
Common Stock								62,979⁽¹⁾⁽²⁾	I	By 401(k)
Common Stock								4,053,594⁽¹⁾	I	By MWHC Holdings, Inc.

Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 3)	2. Conversion or Exercise Price of Derivative Security	3. Transaction Date (Month/Day/Year)	3A. Deemed Execution Date, if any (Month/Day/Year)	4. Transaction Code (Instr. 8)		5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5)		6. Date Exercisable and Expiration Date (Month/Day/Year)		7. Title and Amount of Securities Underlying Derivative Security (Instr. 3 and 4)		8. Price of Derivative Security (Instr. 5)	9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4)	10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)
1. Title of Derivative Security (Instr. 3)	2. Conversion or Exercise Price of Derivative Security	3. Transaction Date (Month/Day/Year)	3A. Deemed Execution Date, if any (Month/Day/Year)	Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares	8. Price of Derivative Security (Instr. 5)		10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)
Stock option (right to buy)	$9.09⁽¹⁾							⁽³⁾	10/09/2004	Common Stock	14,300⁽¹⁾		14,300⁽¹⁾	D
Stock option (right to buy)	$9.55⁽¹⁾							⁽⁴⁾	12/10/2008	Common Stock	5,531⁽¹⁾		5,531⁽¹⁾	D
Stock option (right to buy)	$7.85⁽¹⁾							⁽³⁾	06/18/2009	Common Stock	3,885⁽¹⁾		3,885⁽¹⁾	D
Stock option (right to buy)	$4.89⁽¹⁾							⁽⁵⁾	11/30/2009	Common Stock	3,614⁽¹⁾		3,614⁽¹⁾	D
Stock option (right to buy)	$8.76⁽¹⁾							⁽⁵⁾	07/26/2010	Common Stock	3,614⁽¹⁾		3,614⁽¹⁾	D
Stock option (right to buy)	$10.23⁽¹⁾							⁽⁵⁾	12/07/2010	Common Stock	3,509⁽¹⁾		3,509⁽¹⁾	D
Stock option (right to buy)	$7.66⁽¹⁾							⁽⁵⁾	08/01/2011	Common Stock	2,853⁽¹⁾		2,853⁽¹⁾	D

Explanation of Responses:

1. Amounts and prices reported reflect amounts and prices after giving effect to the August 11, 2003 1 for 10 stock dividend.

2. Based upon plan statement dated December 31, 2002.

3. This stock option has fully vestd in installments in accordance with its terms.

4. This stock option vests in five equal annual installments until fully vested on December 10, 2003.

5. This stock option vests in four equal annual installments beginning with the first anniversary of the stock option grant date, which grant date was ten years prior to the reported expiration date.

Remarks:

The information in Table II is being provided to accurately reflect the end of period holdings for each separate class of derivative securities previously reported in the aggreage.

	Lucy Woods POA for John M. Fox	09/19/2003
	** Signature of Reporting Person	Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 4 (b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
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