Gran Tierra Energy Announces Upcoming Conference Schedule

CALGARY, Sept. 13 /CNW/ - Gran Tierra Energy Inc. ("Gran Tierra Energy") (NYSE Amex: GTE, TSX: GTE), a company focused on oil and gas exploration and production in South America, today announced its upcoming investor conference schedule and live webcast events.

Mr. Dana Coffield, Gran Tierra Energy's President and Chief Executive Officer, will be presenting at the Raymond James Investing in Colombia Conference, taking place at the Le Méridien King Edward Hotel, Toronto, Canada, on September 13, 2010 at 10:40am ET.

The live webcast presentation will be available at the link below and will be available 30 days following the presentation: http://www.wsw.com/webcast/rj63/gtre/

Mr. Duncan Nightingale, Gran Tierra Energy's Vice President Exploration, will be presenting at the Peters & Co. North American Oil & Gas Conference, taking place at the Four Seasons Hotel, Toronto, Canada, on September 16, 2010 at 10:50am ET.

Also, Mr. Dana Coffield will be presenting at the FirstEnergy/Société Générale Global Energy Conference, taking place at the Millennium Hotel, London, England, on September 21, 2010 at 9:25am local time.

The live webcast presentation will be available at the link below and will be available 30 days following the presentation: http://jetslides.tv/lobby/217

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, Peru, and 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.

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.

For further information: Additional information is available on Gran Tierra Energy's website at www.grantierra.com. For media and investor inquiries please contact Jason Crumley, Director, Investor Relations, at 403-265-3221 or [email protected].