THE HAGUE, Aug. 19, 2008 (Canada NewsWire via COMTEX) ----Shell Canada Limited ("Shell Canada"), a wholly owned subsidiary of Royal Dutch Shell plc, announced today that it has received the approval of the Minister of Industry under the Investment Canada Act for its offer to purchase all of the outstanding common shares of Duvernay Oil Corp. ("Duvernay") (including common shares issuable upon the exercise or surrender of any options). In approving the acquisition, the Minister determined that the transaction is likely to be of "net benefit to Canada" for purposes of the Investment Canada Act.

Shell Canada also announced today that the Commissioner of Competition under the Competition Act (Canada) has granted Shell Canada an advance ruling certificate, which constitutes compliance with the requirements under the Competition Act (Canada). As a result, Shell Canada has now received all necessary Canadian regulatory approvals to proceed with the acquisition of Duvernay.

Shareholders are encouraged to tender their Duvernay common shares to the offer as soon as possible. The offer remains open until 1:01 a.m. (Calgary time) on August 22, 2008, unless the offer is withdrawn or extended by Shell Canada. Under the terms of the offer, Duvernay shareholders will receive C $83.00 for each Duvernay common share.

Shell Canada first announced its intention to make the offer on July 14, 2008 and its wholly owned subsidiary, BRS Gas Corp., mailed its take-over bid circular to the shareholders of Duvernay on July 17, 2008.

 << Legal Notice ------------ >> 

This release does not constitute an offer to purchase or a solicitation of an offer to sell securities. Duvernay shareholders are advised to review the take-over bid circular and related documents (the "Offer Documents") and any other relevant documents filed with the Canadian securities regulatory authorities in respect of the offer because they will contain important information. In addition to mailed copies of the Offer Documents, investors will be able to obtain such documents free of charge through the System for Electronic Document Analysis and Retrieval (SEDAR) at www.sedar.com.

 << Cautionary Statement -------------------- >> 

This announcement contains forward-looking statements concerning the financial condition, results of operations and businesses of Royal Dutch Shell. All statements other than statements of historical fact are, or may be deemed to be, forward-looking statements. Forward-looking statements are statements of future expectations that are based on management's current expectations and assumptions and involve known and unknown risks and uncertainties that could cause actual results, performance or events to differ materially from those expressed or implied in these statements. Forward-looking statements include, among other things, statements concerning the potential exposure of Royal Dutch Shell to market risks and statements expressing management's expectations, beliefs, estimates, forecasts, projections and assumptions. These forward-looking statements are identified by their use of terms and phrases such as "anticipate", "believe", "could", "estimate", "expect", "intend", "may", "plan", "objectives", "outlook", "probably", "project", "will", "seek", "target", "risks", "goals", "should" and similar terms and phrases. There are a number of factors that could affect the future operations of Royal Dutch Shell and could cause those results to differ materially from those expressed in the forward-looking statements included in this announcement, including (without limitation): (a) price fluctuations in crude oil and natural gas; (b) changes in demand for the Group's products; (c) currency fluctuations; (d) drilling and production results; (e) reserve estimates; (f) loss of market and industry competition; (g) environmental and physical risks; (h) risks associated with the identification of suitable potential acquisition properties and targets, and successful negotiation and completion of such transactions; (i) the risk of doing business in developing countries and countries subject to international sanctions; (j) legislative, fiscal and regulatory developments including potential litigation and regulatory effects arising from recategorisation of reserves; (k) economic and financial market conditions in various countries and regions; (l) political risks, including the risks of expropriation and renegotiation of the terms of contracts with governmental entities, delays or advancements in the approval of projects and delays in the reimbursement for shared costs; and (m) changes in trading conditions. All forward-looking statements contained in this announcement are expressly qualified in their entirety by the cautionary statements contained or referred to in this section. Readers should not place undue reliance on forward-looking statements. Additional factors that may affect future results are contained in Royal Dutch Shell's 20-F for the year ended December 31, 2007 (available at www.shell.com/investor and www.sec.gov). These factors also should be considered by the reader. Each forward-looking statement speaks only as of the date of this announcement, Aug 19, 2008. Neither Royal Dutch Shell nor any of its subsidiaries undertake any obligation to publicly update or revise any forward-looking statement as a result of new information, future events or other information. In light of these risks, results could differ materially from those stated, implied or inferred from the forward-looking statements contained in this announcement.

SOURCE: Shell Canada Limited

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