CALGARY, April 17 /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 Independent Petroleum Association of America's Oil & Gas Investment Symposia at the Sheraton New York Hotel & Towers at 5:00 pm EDT on April 21st, 2009. The 20 minute presentation will take place in the Empire East room, followed by a question and answer session in conference room K. The webcast link for Gran Tierra's presentation at next week's IPAA OGIS New York Conference is: http://www.investorcalendar.com/CEPage.asp?ID=143910 This link will be active for the live presentation, and can be accessed for 12 months following 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. 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 http://www.grantierra.com/. Investor inquiries may be directed to or (866) 973-4873. Gran Tierra Energy's Securities and Exchange Commission filings are available on a web site maintained by the Securities and Exchange Commission at http://www.sec.gov/ and on SEDAR at http://www.sedar.com/. DATASOURCE: Gran Tierra Energy Inc. CONTACT: Dana Coffield, Gran Tierra Energy Inc., President & Chief Executive Officer, (866) 973-4873, ; Tom McMillan, Equicom Group, Investor Relations, (403) 536-5903,

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