Suncor Energy Services Inc. Chooses Open Text Solutions

Chicago, IL - 2004-10-28 - Open Text Corporation (Nasdaq: OTEX, TSX: OTC), the world s largest provider of Enterprise Content Management (ECM) software, announced today that Suncor Energy Services Inc. has chosen to extend its Open Text solutions, including IXOS Suite for SAP, and add Livelink to support integrated collaboration and content management activities throughout the enterprise.

Based in Calgary, Alberta, Canada, Suncor is a fast-growing integrated energy company, strategically focused on developing one of the world s largest petroleum resource basins Canada s Athabasca oil sands. In 1967, Suncor made history by tapping the oil sands to produce the first commercial barrel of synthetic crude oil. Suncor today has operations in both Canada and the United States and has more than 4,000 employees.

In addition to existing solutions for SAP data and document archiving, Suncor plans on using Open Text to support the archiving of corporate e-mail, in order to capture and manage this content as items of corporate record. Suncor will also use Open Text to manage engineering drawings and content for its refinery facilities and integrate data from its SAP system to improve the management of resources and inventory needed to maintain these assets.

Our ability to support ad hoc collaboration and unstructured content management alongside structured data is of critical importance to our customers, particularly in the highly regulated energy arena, said John Shackleton, President of Open Text. Suncor recognized this challenge and has taken a major step forward to make collaboration easier, as well as to support the management of information and processes critical to its core business.

Solutions such as Suncor s will be among the broad range of capabilities Open Text will present at its upcoming annual user conference LinkUp Phoenix 2004, being held this year in Phoenix, Arizona, November 15-18. For more information, go to: www.opentext.com/linkup

About Suncor

Suncor Energy Services Inc., is a subsidiary of Suncor Energy Inc. an integrated energy company headquartered in Calgary, Alberta. Suncor s oil sands business, located near Fort McMurray, Alberta, extracts and upgrades oil sands and markets refinery feedstock and diesel fuel, while operations throughout Western Canada produce natural gas. Suncor operates a refining and marketing business in Ontario with retail distribution under the Sunoco brand. U.S.A. downstream assets include refining operations in Colorado and retail sales in the Denver area under the Phillips 66 brand. Suncor s common shares (symbol: SU) are listed on the Toronto and New York stock exchanges. Sunoco in Canada is separate and unrelated to Sunoco in the United States, which is owned by Sunoco, Inc. of Philadelphia.

About Open Text

Open Text is the market leader in providing Enterprise Content Management (ECM) solutions that bring together people, processes and information in global organizations. Throughout its history, Open Text has matched its tradition of innovation with a track record of financial strength and growth. Today, the company supports more than 17 million seats across 13,000 deployments in 67 countries and 12 languages worldwide. For more information on Open Text, go to: www.opentext.com

Trademark

Copyright © 2004 by Open Text Corporation. LIVELINK and OPEN TEXT are trademarks or registered trademarks of Open Text Corporation in the United States of America, Canada, the European Union and/or other countries. This list of trademarks is not exhaustive. Other trademarks, registered trademarks, product names, company names, brands and service names mentioned herein are property of Open Text Corporation or other respective owners.

Release Disclaimer

This news release may contain forward-looking statements relating to the success of any of the Company s strategic initiatives, the Company s growth and profitability prospects, the benefits of the Company s products to be realized by customers, the Company s position in the market and future opportunities therein, the deployment of Livelink and our other products by customers, and future performance of Open Text Corporation. Forward-looking statements may also include, without limitation, any statement relating to future events, conditions or circumstances. Forward-looking statements in this release are not promises or guarantees and are subject to certain risks and uncertainties, and actual results may differ materially. These risks and uncertainties include, among others, risks involved in the completion and integration of acquisitions, the possibility of technical, logistical or planning issues in connection with deployments, the continuous commitment of the Company's customers and other risks detailed from time to time in the Company's filings with the Securities and Exchange Commission (SEC), including the Form 10-K for the year ended June 30, 2004. You should not place undue reliance upon any such forward-looking statements, which are based on management's beliefs and opinions at the time the statements are made, and the Company does not undertake any obligations to update forward-looking statements should circumstances or management's beliefs or opinions change.

For more information, please contact

Margaret E. Dobbin
Director, Industry Analyst Relations
Open Text Corporation
+1-519-888-7111 ext.2410
mdobbin@opentext.com

Richard Maganini
Open Text Corporation
1-847-961-0662
rmaganin@opentext.com