Gran Tierra Energy to Present at Thomas Weisel Partners Alternative Energy & Natural Resources Conference on November 10, 2009

• Press Release
• Source: Gran Tierra Energy Inc.
• On 1:41 pm EST, Monday November 9, 2009

CALGARY, Nov. 9 /PRNewswire-FirstCall/ - Gran Tierra Energy Inc. (NYSE Amex: GTE, TSX: GTE), a company focused on oil exploration and production in South America, today announced that Dana Coffield, the Company's President and Chief Executive Officer, will be presenting at the Thomas Weisel Partners Alternative Energy & Natural Resources Conference, taking place at the New York Palace Hotel, on November 10, 2009 at 1:30 pm Eastern Time, in the Kennedy II room.

The live webcast presentation will be available at the link below: http://www.veracast.com/webcasts/twp/altenergy09/03109342.cfm

This webcast will be available for 30 days after the conference.

About Gran Tierra Energy Inc.

Gran Tierra Energy Inc. is an international oil and gas exploration and production company, headquartered in Calgary, Canada, incorporated in the United States, trading on the NYSE Amex Exchange (GTE) and the Toronto Stock Exchange (GTE), and operating in South America. Gran Tierra Energy holds interests in producing and prospective properties in Argentina, Colombia and Peru, and has opened a business development office in Rio de Janeiro, Brazil. Gran Tierra Energy has a strategy that focuses on establishing a portfolio of producing properties, plus production enhancement and exploration opportunities to provide a base for future growth. Additional information concerning Gran Tierra Energy is available at www.grantierra.com.

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