Conoco Canada Resources Limited — M&A Activity 2000

Nov 16, 2000

November 10, 2000

Alberta Securities Commission British Columbia Securities Commission Securities Commission of Newfoundland Nova Scotia Securities Commission Ontario Securities Commission Registrar of Securities, Prince Edward Island Quebec Securities Commission Saskatchewan Securities Commission Toronto Stock Exchange Montreal Stock Exchange Consumer and Corporate Affairs

Dear Sirs:

Subject: Gulf Canada Resources Offer to Purchase all of the Outstanding Shares and Associated Rights of Crestar Energy Inc.

We confirm that the following material was sent by registered mail on November 9, 2000 to those registered shareholders of common shares of Crestar Energy Inc. who had not yet tendered their Crestar Energy Inc. shares under the Gulf Canada Resources Limited Offer to Purchase.

1. Notice of Election 2. Letter of Transmittal 3. Notice of Compulsory Acquisition 4. Letter to Shareholders dated November 9, 2000 5. Security Return Envelope

We further confirm that copies of the above mentioned material were sent by courier on November 9, 2000 to each intermediary holding shares of Crestar Energy Inc. who had not yet tendered their shares under the Gulf Canada Resources Limited Offer to Purchase.

In compliance with the rules in the CBCA and it’s regulations, we are providing this material to you in our capacity as Depositary under the subject offer.

Yours truly, COMPUTERSHARE

On behalf of Montreal Trust Company of Canada

“Signed by” Jerry Baas Administrator Stock Transfer Services

Cc: Bennett Jones LLP Attention: Colin Perry

CrestarGulf