Filing Details

Accession Number:
0001179110-10-001897
Form Type:
4
Zero Holdings:
No
Publication Time:
2010-02-02 12:00:00
Reporting Period:
2010-01-31
Filing Date:
2010-02-02
Accepted Time:
2010-02-02 20:50:02
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
1344601 Nancy Buese C/O Markwest Energy Partners, L.p.
1515 Arapahoe St. Twr 2, Ste 700
Denver CO 80202
Svp, Chief Financial Officer No Yes No No
Reported Non-Derivative Transactions
Sec. Name Acquisiton - Disposition Date Amount Price Remaning Holdings Equity Swap Involved Form Type Code Nature of Ownership Explanation
Common Units Acquisiton 2010-01-31 18,000 $0.00 110,864 No 4 A Direct
Common Units Disposition 2010-01-31 12,527 $28.97 98,337 No 4 F Direct
Common Units Disposition 2010-02-01 5,000 $29.35 93,337 No 4 S Direct
Equity Swap Involved Form Type Code Nature of Ownership Explanation
No 4 A Direct
No 4 F Direct
No 4 S Direct
Footnotes
  1. Amount of securities beneficially owned following the reported transaction(s) includes Common Units owned and Restricted Units subject to varying vesting terms.
  2. Units were sold pursuant to instructions by the reporting person on November 13, 2009, pursuant to a 10b5-1 trading plan.
  3. The price reported in Column 4 is a weighted average price. These units were sold in multiple transactions at prices ranging from $29.05 to $29.41, inclusive. The reporting person undertakes to provide to MarkWest Energy Partners, L.P., any security holder of MarkWest Energy Partners, L.P., or the staff of the Securities & Exchange Commission, upon request, full information regarding the number of units sold at each separate price.