The Caisse de dépôt et placement du Québec acquires shares of Duvernay Oil Corp.

The Caisse de dépôt et placement du Québec (“Caisse”) announces that it has acquired, since December 14, 2007, on the Toronto Stock Exchange, 454,000 common shares of Duvernay Oil Corp. (“Duvernay”), or 0.77% of such shares outstanding, at an average price of $26.14 per share.

Before this transaction, the Caisse held 5,426,400 common shares of Duvernay, or 9.28% of such shares outstanding.

Through this transaction, the Caisse now holds 5,880,400 common shares of Duvernay, or 10.05% of such shares outstanding.

This transaction was made for investment purposes and the Caisse could increase or decrease its investments in Duvernay, depending on market conditions or any other relevant factor.