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Home > Insider Trading > Filing (0001179110-10-005822)

Filing Details

Accession Number:: 0001179110-10-005822
Form Type:: 4
Zero Holdings:: No
Publication Time:: 2010-03-22 13:00:00
Reporting Period:: 2010-03-19

Filing Date:: 2010-03-22
Accepted Time:: 2010-03-22 17:43:57
SEC Url:: Form 4 Filing

Issuer

Cik	Name	Symbol	Sector (SIC)	IRS No
1166036	Markwest Energy Partners L P	MWE	Crude Petroleum & Natural Gas (1311)	270005456

Insiders

Cik	Name	Reported Address	Insider Title	Director	Officer	Large Shareholder	Other
1235073	C Donald Heppermann	C/O Markwest Energy Partners, L.p. 1515 Arapahoe St. Twr 2, St 700 Denver CO 80202		Yes	No	No	No

Reported Non-Derivative Transactions

Show Other Fields >>

Sec. Name	Acquisiton - Disposition	Date	Amount	Price	Remaning Holdings	Equity Swap Involved	Form Type	Code	Nature of Ownership	Explanation
Common Units	Acquisiton	2010-03-19	500	$30.95	162,774	No	4	P	Direct

Equity Swap Involved	Form Type	Code	Nature of Ownership	Explanation
No	4	P	Direct

Footnotes

Amount of securities beneficially owned following the reported transaction(s) includes Common Units owned and Restricted Units subject to varying vesting terms.
Mr. Heppermann's total unit balance has been decreased by one unit from previous filings due to an inadvertent de minimis error.