0001179110-11-012516.txt : 20110822 0001179110-11-012516.hdr.sgml : 20110822 20110822190441 ACCESSION NUMBER: 0001179110-11-012516 CONFORMED SUBMISSION TYPE: 4 PUBLIC DOCUMENT COUNT: 1 CONFORMED PERIOD OF REPORT: 20110822 FILED AS OF DATE: 20110822 DATE AS OF CHANGE: 20110822 REPORTING-OWNER: OWNER DATA: COMPANY CONFORMED NAME: BAILEY KEITH E CENTRAL INDEX KEY: 0001216042 FILING VALUES: FORM TYPE: 4 SEC ACT: 1934 Act SEC FILE NUMBER: 001-31239 FILM NUMBER: 111050879 MAIL ADDRESS: STREET 1: 6685 S EVANSTON CIRCLE CITY: TULSA STATE: OK ZIP: 74136 ISSUER: COMPANY DATA: COMPANY CONFORMED NAME: MARKWEST ENERGY PARTNERS L P CENTRAL INDEX KEY: 0001166036 STANDARD INDUSTRIAL CLASSIFICATION: CRUDE PETROLEUM & NATURAL GAS [1311] IRS NUMBER: 270005456 FISCAL YEAR END: 1231 BUSINESS ADDRESS: STREET 1: 1515 ARAPAHOE STREET STREET 2: TOWER 1, SUITE 1600 CITY: DENVER STATE: CO ZIP: 80202 BUSINESS PHONE: 303-925-9200 MAIL ADDRESS: STREET 1: 1515 ARAPAHOE STREET STREET 2: TOWER 1, SUITE 1600 CITY: DENVER STATE: CO ZIP: 80202 4 1 edgar.xml FORM 4 - X0304 4 2011-08-22 0 0001166036 MARKWEST ENERGY PARTNERS L P MWE 0001216042 BAILEY KEITH E C/O MARKWEST ENERGY PARTNERS, L.P. 1515 ARAPAHOE ST. TWR 1, STE 1600 DENVER CO 80202 1 0 0 0 Common Units 2011-08-22 4 P 0 5000 43.226 A 56983 D The price reported in Column 4 is a weighted average price. These units were purchased in multiple transactions at prices ranging from $43.19 to $43.23, 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. /s/ Sean M. McKendry as POA for Keith E. Bailey 2011-08-22