Pengrowth Energy Trust Announces the Resumption of Operations at Judy Creek Gas Plant and a Change in the U.S. Ex-Distribution Date for the June 15, 2004 Distribution Stock Symbol: PGF.UN, TSX; PGH, NYSE CALGARY, May 25 /PRNewswire-FirstCall/ -- Pengrowth Corporation ("Pengrowth"), administrator of Pengrowth Energy Trust announced today that electric power was restored to the Judy Creek Gas Plant complex at approximately 9:00 PM on Saturday, May 22, 2004. By midnight Saturday, gas was coming into the plant and operations were back to normal. The fire is currently listed as "under control" and mop up operations will continue over the next week. The Judy Creek Gas Plant was temporarily shut down at approximately 4:30 PM on Tuesday, May 18, 2004 and partial production from our Judy 'A' pool recommenced on Friday, May 21, 2004 at approximately 3:00 AM. Pengrowth also announces that due to the Memorial Day holiday in the United States which falls on Monday, May 31, 2004, the ex-distribution date for trading on the New York Stock Exchange has been changed to Thursday, May 27, 2004 from the former ex-distribution date of Friday, May 28, 2004. The ex-distribution date for trading on the Toronto Stock Exchange remains unchanged at Friday, May 28, 2004. The record date for trading on both exchanges remains unchanged at June 1, 2004. PENGROWTH CORPORATION James S. Kinnear, President DATASOURCE: Pengrowth Energy Trust CONTACT: about Pengrowth, please visit our website http://www.pengrowth.com/ or contact: Investor Relations, Calgary,E-mail: , Telephone: 403-233-0224, Toll Free: 1-800-223-4122, Facsimile: 403-294-0051, Investor Relations, Toronto, E-mail: , Telephone: 416-362-1748, Toll Free: 1-888-744-1111, Facsimile: 416-362-8191

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