EDGAR Filing Documents for 0001104659-12-030711

Form 8-K - Current report:

SEC Accession No. 0001104659-12-030711

Filing Date

2012-04-30

Accepted

2012-04-30 17:15:57

Documents

Period of Report

2012-04-26

Items

Item 8.01: Other Events
Item 9.01: Financial Statements and Exhibits

Document Format Files

Seq	Description	Document	Type	Size
1	8-K	a12-10723_18k.htm	8-K	24073
2	EX-99.1	a12-10723_1ex99d1.htm	EX-99.1	11192
3	GRAPHIC	g107231mmi001.jpg	GRAPHIC	6769
	Complete submission text file	0001104659-12-030711.txt		45837

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 (Filer) CIK: 0001166036 (see all company filings)

IRS No.: 270005456 | Fiscal Year End: 1231
Type: 8-K | Act: 34 | File No.: 001-31239 | Film No.: 12796424
SIC: 1311 Crude Petroleum & Natural Gas