Eden Replaces Hart as Gran Tierra's CFO

Gran Tierra Energy Inc. announced that it had accepted the resignation of James Hart from his position as the Company's Chief Financial Officer and Vice President, Finance.

Effective January 2, 2007, the Board elected Martin H. Eden to fill the position of Chief Financial Officer, filling the vacancy created by Mr. Hart's resignation. Mr. Eden began full time employment with the Company on January 2, 2007. Mr. Hart will continue to serve the Company in a business development position.

Mr. Eden has over 26 years experience in accounting and finance in the energy industry in Canada and overseas. He was Chief Financial Officer of Artumas Group Inc., a publicly listed Canadian oil and gas company from April 2005 to December 2006 and was a director from June to October, 2006. He has been president of Eden and Associates Ltd., a financial consulting firm, from 1999 to present. From 2004 to 2005 he was CFO of Chariot Energy Inc., a Canadian private oil and gas company. During 2004 he was also CFO of Assure Energy Inc., a publicly traded oil and gas company listed in the United States. From 2001 to 2002 he was CFO of Geodyne Energy Inc., a publicly listed Canadian oil and gas company. From 1997 to 2000 he was Controller and subsequently CFO of Kyrgoil Corporation, a publicly listed Canadian oil and gas company with operations in Central Asia. He spent nine years with Nexen Inc. (1986-1996), including three years as Finance Manager for Nexen's Yemen operations and six years in Nexen's financial reporting and special projects areas in its Canadian head office. Mr. Eden has worked in public practice including two years as an audit manager for Coopers & Lybrand in East Africa. Mr. Eden holds a B.Sc. in Economics from Birmingham University, England, an MBA from Henley Management College/Brunel University, England, and is a member of the Institute of Chartered Accountants of Alberta and the Institute of Chartered Accountants in England and Wales.

Dana Coffield, President and Chief Executive Officer of Gran Tierra, stated, "The addition of Mr. Eden to the executive team, with his extensive financial leadership experience with international E&P companies in diverse public and private environments, significantly strengthens the existing management team of Gran Tierra Energy."

Gran Tierra Energy, Inc. is an international oil and gas exploration and production company, headquartered in Calgary, Canada, incorporated and traded in the United States and operating in South America. The Company holds interests in producing and prospective properties in Argentina, Colombia and Peru.