0001179110-13-008969.txt : 20130523 0001179110-13-008969.hdr.sgml : 20130523 20130523162124 ACCESSION NUMBER: 0001179110-13-008969 CONFORMED SUBMISSION TYPE: 4 PUBLIC DOCUMENT COUNT: 1 CONFORMED PERIOD OF REPORT: 20130522 FILED AS OF DATE: 20130523 DATE AS OF CHANGE: 20130523 REPORTING-OWNER: OWNER DATA: COMPANY CONFORMED NAME: Rosson Paula L CENTRAL INDEX KEY: 0001526751 FILING VALUES: FORM TYPE: 4 SEC ACT: 1934 Act SEC FILE NUMBER: 001-31239 FILM NUMBER: 13868556 MAIL ADDRESS: STREET 1: 1515 ARAPAHOE STREET STREET 2: TOWER 1 SUITE 1600 CITY: DENVER STATE: CO ZIP: 80202 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 - X0306 4 2013-05-22 0 0001166036 MARKWEST ENERGY PARTNERS L P MWE 0001526751 Rosson Paula L 1515 ARAPAHOE STREET TOWER 1 SUITE 1600 DENVER CO 80202 0 1 0 0 VP/Chief Accounting Officer Common Units 2013-05-22 4 S 0 1900 69.12 D 21573 D Sales were effected pursuant to instructions given by the reporting person on March 20, 2013, pursuant to a Rule 10b5-1 trading plan. Amount of securities beneficially owned following the reported transaction(s) includes Common Units owned and Restricted Units subject to varying vesting terms. /s/ Sean M McKendry as POA for Paula L Rosson 2013-05-23