EDGAR Filing Documents for 0001193125-15-015815

Form SC 13G - Statement of Beneficial Ownership by Certain Investors:

SEC Accession No. 0001193125-15-015815

Filing Date

2015-01-21

Accepted

2015-01-21 12:10:54

Documents

Document Format Files

Seq	Description	Document	Type	Size
1	SC 13G	d855032dsc13g.htm	SC 13G	32535
	Complete submission text file	0001193125-15-015815.txt		34053

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

IRS No.: 270005456 | Fiscal Year End: 1231
Type: SC 13G | Act: 34 | File No.: 005-79896 | Film No.: 15537952
SIC: 1311 Crude Petroleum & Natural Gas

Mailing Address BAHNHOFSTRASSE 45 ZURICH V8 CH-8001

Business Address BAHNHOFSTRASSE 45 ZURICH V8 CH-8001 41-44-234-1111

UBS Group AG (Filed by) CIK: 0001610520 (see all company filings)

IRS No.: 000000000 | State of Incorp.: V8 | Fiscal Year End: 1231
Type: SC 13G
SIC: 6021 National Commercial Banks