FOR:  TALISMAN ENERGY INC.

TSX, NYSE SYMBOL:  TLM

December 10, 2003

Talisman Energy-Truong Son Joint Operating Company Tests Oil Discovery Offshore Vietnam at 7,300 bbls/day

CALGARY, ALBERTA--Truong Son Joint Operating Company has made an oil discovery in Block 46/02 offshore Vietnam.

Song Doc - 1X is the first exploration well to be drilled by the Company since being awarded the block in
December 2002. It successfully tested the Song Doc prospect in Vietnam Block 46/02. Block 46/02 is located
adjacent to the Talisman operated Block PM-3 of the Malaysia-Vietnam Commercial Arrangement Area (PM-3 CAA)
while Song Doc is situated some 13 kilometers northwest of PM-3 CAA Bunga Kekwa C wellhead platform.

The well flowed at a rate of 7,300 bbls/d of 38 degrees API oil but was constrained by testing equipment.
Reserves potential for the discovery is being evaluated.

Truong Son JOC is a Joint Operating Company established by the Contractor Parties: PETROVIETNAM EXPLORATION AND
PRODUCTION COMPANY holds a 40% interest; TALISMAN (VIETNAM 46/02) LTD, a wholly-owned subsidiary of Talisman
Energy Inc, holds a 30% interest; and PETRONAS CARIGALI OVERSEAS SDN. BHD., a wholly-owned subsidiary of
PETRONAS, the national petroleum corporation of Malaysia, holds a 30% interest.

Talisman Energy Inc. is a large, independent oil and gas producer, with operations in Canada and, through its
subsidiaries, the North Sea, Indonesia, Malaysia, Vietnam, Algeria and the United States. Talisman's
subsidiaries also conduct business in Trinidad, Colombia and Qatar. Talisman has adopted the International Code
of Ethics for Canadian Business and is committed to maintaining high standards of excellence in corporate
citizenship and social responsibility wherever its business is conducted. Talisman's shares are listed on
Toronto Stock Exchange in Canada and New York Stock Exchange in the United States under the symbol TLM.

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FOR FURTHER INFORMATION PLEASE CONTACT:

David Mann
Senior Manager, Corporate & Investor Communications
(403) 237-1196
(403) 237-1210 (FAX)
tlm@talisman-energy.com
www.talisman-energy.com

INDUSTRY:  OIL
SUBJECT:   NWS

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Talisman Energy Inc.