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Filing Detail
Form 10-K - Annual report [Section 13 and 15(d), not S-K Item 405]:
SEC Accession No. 0001047469-13-001816
Filing Date
2013-02-27
Accepted
2013-02-27 16:03:35
Documents
17
Period of Report
2012-12-31

Document Format Files

Seq Description Document Type Size
1 10-K a2213012z10-k.htm 10-K 2495240
2 EX-12.1 a2213012zex-12_1.htm EX-12.1 25299
3 EX-21.1 a2213012zex-21_1.htm EX-21.1 20068
4 EX-23.1 a2213012zex-23_1.htm EX-23.1 3012
5 EX-31.1 a2213012zex-31_1.htm EX-31.1 8759
6 EX-31.2 a2213012zex-31_2.htm EX-31.2 8143
7 EX-32.1 a2213012zex-32_1.htm EX-32.1 5796
8 EX-32.2 a2213012zex-32_2.htm EX-32.2 5854
15 G327691.JPG g327691.jpg GRAPHIC 33823
16 G918611.JPG g918611.jpg GRAPHIC 21644
17 G144216.JPG g144216.jpg GRAPHIC 40104
  Complete submission text file 0001047469-13-001816.txt   19102683

Data Files

Seq Description Document Type Size
9 EX-101.INS mwe-20121231.xml EX-101.INS 3184836
10 EX-101.SCH mwe-20121231.xsd EX-101.SCH 122787
11 EX-101.CAL mwe-20121231_cal.xml EX-101.CAL 203481
12 EX-101.DEF mwe-20121231_def.xml EX-101.DEF 538746
13 EX-101.LAB mwe-20121231_lab.xml EX-101.LAB 1716732
14 EX-101.PRE mwe-20121231_pre.xml EX-101.PRE 857382
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: 10-K | Act: 34 | File No.: 001-31239 | Film No.: 13646739
SIC: 1311 Crude Petroleum & Natural Gas