Talisman Energy Announces a Promising Oil Discovery Offshore Norway

CALGARY, ALBERTA, May 19 (MARKET WIRE) --
Talisman Energy Norge AS, a wholly owned subsidiary of Talisman Energy
Inc. (TSX: TLM) (NYSE: TLM), has made a promising oil discovery in the
15/12-21 exploration well drilled on the Grevling Prospect in the North
Sea. The Grevling well is located about 215 kilometres off the west coast
of Norway in PL038, Block 15/12, on the eastern flank of the Central
Graben.

The well, which targeted Mesozoic sandstone reservoirs on a structural
high, was drilled to a total vertical depth of 3,268 metres, encountering
a gross hydrocarbon bearing interval of approximately 133 metres. Two
zones were tested at a combined rate of 1,250 bbls/d (197 m3/d).
Currently a sidetrack well is being drilled down-dip on the flank of the
structure to assess its volumetric upside potential. The discovery lies
16 kilometers north of the Talisman operated Varg Field.

"Grevling is a promising exploration discovery, close to our Varg
facility," said Richard Herbert, Executive Vice-President, Exploration.
"This, along with the recent Barents acreage award in the 20th Licencing
Round, reinforces our long-term growth aspirations in Norway."

Talisman has a 40% working interest in the Grevling discovery, Det norske
oljeselskap ASA has a 30% working interest and Petoro AS holds the
remaining 30%.

Talisman Energy Inc. is a global, diversified, upstream oil and gas
company, headquartered in Canada. Talisman's three main operating areas
are North America, the North Sea and Southeast Asia. The Company also has
a portfolio of international exploration opportunities. Talisman is
committed to conducting business safely, in a socially and
environmentally responsible manner, and is included in the Dow Jones
Sustainability (North America) Index. Talisman is listed on the Toronto
and New York Stock Exchanges under the symbol TLM. Please visit our
website at www.talisman-energy.com.

Contacts:
Talisman Energy Inc. - Media and General Inquiries
David Mann, Vice-President,
Corporate & Investor Communications
(403) 237-1196
(403) 237-1210 (FAX)
Email: tlm@talisman-energy.com
Website: www.talisman-energy.com

Talisman Energy Inc. - Shareholder and Investor Inquiries
Christopher J. LeGallais, Vice-President,
Investor Relations
(403) 237-1957
(403) 237-1210 (FAX)
Email: tlm@talisman-energy.com
Website: www.talisman-energy.com

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