Penn West Exploration

Penn West Exploration

March 18, 2011 21:55 ET

Penn West Exploration Confirms Filing of Its 2010 Year End Documents

CALGARY, ALBERTA--(Marketwire - March 18, 2011) - Penn West Petroleum Ltd. (TSX:PWT) (NYSE:PWE) ("Penn West Exploration") announces that it has filed with Canadian securities regulatory authorities its audited consolidated financial statements and accompanying notes for the year ended December 31, 2010 and related Management's Discussion and Analysis. Penn West Exploration has also filed its Annual Information Form for the year ended December 31, 2010, which includes the disclosure and reports relating to reserves data and other oil and gas information required pursuant to National Instrument 51-101. Penn West Exploration will file its Annual Report on Form 40-F with the U.S. Securities and Exchange Commission shortly.

Copies of these documents may be obtained electronically via or through Penn West's website at Copies of the Form 40-F will be made available shortly on Hard copies of Penn West's audited Consolidated Financial Statements and related MD&A are also available upon request, free of charge, by contacting our Investor Relations group or by requesting them through our website.

Penn West Exploration common shares and debentures are listed on the Toronto Stock Exchange under the symbols PWT, PWT.DB.E and PWT.DB.F and Penn West Exploration common shares are listed on the New York Stock Exchange under the symbol PWE.

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