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Filing search / Registration and prospectus / MarkWest Energy Operating CO LLC / Page 3

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Registration and prospectus

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MarkWest Energy Operating CO LLC

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48 filings

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Registration of securities issued in business combination transactions

7 Dec 06

12:00am

Automatic shelf registration

Registration of securities issued in business combination transactions (amended)

3 Oct 06

12:00am

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Registration of securities issued in business combination transactions

18 Aug 06

12:00am

Prospectus supplement

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Registration of securities issued in business combination transactions (amended)

Registration of securities issued in business combination transactions

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Shelf registration

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