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Filing Detail
Form 4 - Statement of changes in beneficial ownership of securities:
SEC Accession No. 0001179110-12-006557
Filing Date
2012-04-05
Accepted
2012-04-05 17:46:05
Documents
1
Period of Report
2012-04-04

Document Format Files

Seq Description Document Type Size
1 FORM 4 - edgar.html 4  
1 FORM 4 - edgar.xml 4 4075
  Complete submission text file 0001179110-12-006557.txt   5437
Mailing Address 1515 ARAPAHOE STREET TOWER 1, SUITE 1600 DENVER CO 80202
Business Address 1515 ARAPAHOE STREET TOWER 1, SUITE 1600 DENVER CO 80202 303-925-9200
MARKWEST ENERGY PARTNERS L P (Issuer) CIK: 0001166036 (see all company filings)

IRS No.: 270005456 | Fiscal Year End: 1231
SIC: 1311 Crude Petroleum & Natural Gas

Mailing Address 1515 ARAPAHOE ST. TOWER 2, SUITE 700 DENVER CO 80202
Business Address
NICKERSON RANDY S (Reporting) CIK: 0001235080 (see all company filings)

Type: 4 | Act: 34 | File No.: 001-31239 | Film No.: 12746666