July 18th

Duvernay Mails Directors\' Circular to Shareholders Unanimously Recommending Acceptance of Shell Canada Offer

Duvernay Oil Corp. (\"Duvernay\") (TSX:DDV) announced today that the mailing of its Directors\' Circular unanimously recommending that the holders of common shares of Duvernay accept the previously announced cash offer by Shell Canada Limited to acquire all of the common shares for $83.00 per share (the \"Offer\") has been completed.

The Offer is open for acceptance until 1:01 a.m. (Calgary time) on August 22, 2008, unless withdrawn or extended. The Offer is subject to certain conditions, including acceptance of the Offer by holders of at least 66 2/3 percent of the outstanding common shares of Duvernay, calculated on a fully diluted basis, and receipt of all required regulatory approvals. The Take-over Bid Circular of Shell Canada and related materials and the Directors\' Circular are available for review on SEDAR at www.sedar.com and will be posted on Duvernay\'s website at www.duvernayoil.com.

Peters & Co. Limited acted as exclusive financial advisor to Duvernay and has provided an opinion to the board of directors of Duvernay that the consideration to be received under the Offer is fair, from a financial point of view, to Duvernay shareholders.

SOURCE: Duvernay Oil Corp.

Duvernay Oil Corp. Michael Rose President and C.E.O. (403) 571-3600 Duvernay Oil Corp. Brian Robinson Vice President, Finance and C.F.O. (403) 571-3609 Duvernay Oil Corp. Scott Kirker Manager, Corporate Affairs (403) 571-3683 Website: www.duvernayoil.com