CALGARY, Sept. 15 /PRNewswire-FirstCall/ -- Gran Tierra Energy Inc. (NYSE Amex: GTE, TSX: GTE), a company focused on oil exploration and production in South America, today announced its upcoming investor conference schedule and live webcast events. Dana Coffield, the company's President and Chief Executive Officer, will be presenting at the following conferences: Peters & Co. 2009 North American Oil & Gas Conference Thursday, September 17, 2009, 9:15 a.m. Eastern Time (ET) The live webcast presentation will be available at the link below: http://www.newswire.ca/en/webcast/viewEvent.cgi?eventID=2787400 This event will be archived and available for three months at the above link. Raymond James Investing in Colombia Conference Monday, September 21, 2009, 10:30 a.m. ET The live webcast presentation will be available at the link below: http://www.wsw.com/webcast/rj48/gte.cn/ This event will be archived and available for 90 days at the above link. FirstEnergy/Soci t G n rale Global Energy Conference Thursday, September 24, 2009, 2:30 p.m. ET The live webcast presentation will be available at the link below: http://remotecontrol.jetstreammedia.com/16199 This event will be archived and available for 30 days at the above link. 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 http://www.grantierra.com/. 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: For media and investor inquiries please contact Thomas McMillan, Equicom Group, (866) 973-4873, (403) 536-5903,

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