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Gran Tierra Energy announces management changes

Staff writer |
Calgary, AB, Canada - July 2, 2014, Calgary, AB, Canada - Gran Tierra Energy Inc., an oil and gas company, announces management changes.

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Shane O'Leary, Gran Tierra Energy's Chief Operating Officer has elected to retire.

Mr. O’Leary joined Gran Tierra Energy as Chief Operating Officer effective March 2, 2009.

Previously he joined First Calgary Petroleum Ltd (FCP) in 2006 as COO and was appointed to the Board of Directors in 2007. in April 2008 he was appointed President & CEO and led an effort to explore strategic alternatives which resulted in the sale of the company to the Italian major ENI in September 2008.

Prior to his position with FCP, Mr. O’Leary served as VP and Business Unit Leader, Brazil, for EnCana where he led the Brazil team in the appraisal and evaluation of EnCana’s offshore reserves as well as the acquisition of new acreage.

He was also the architect of a technology cooperation agreement with the Brazilian national oil company, Petrobras, involving numerous partnerships in offshore acreage in exchange for assistance to Petrobras in applying Canadian heavy oil production technology in Brazil.

His additional experience includes 17 years working for BP/Amoco most recently as Program Manager of their Alaska Gas Business Unit and in Egypt as Vice President of Business Development.

Mr. O’Leary has more than 30 years of experience in the oil and gas industry working projects in North America, the Middle East, Africa, South America, the Caspian and Trinidad.

Mr. O’Leary graduated from Queen’s University with a Bachelor of Science Degree in Chemical Engineering and went on to obtain his MBA from the University of Western Ontario.

Duncan Nightingale, currently President, Gran Tierra Energy Colombia, will be promoted to COO to replace Mr. O'Leary.

Mr. Nightingale is a professional Geologist with a total of 32 years of corporate head office and resident in-country international operating experience, spanning all aspects of managing exploration programs, development and production operations, new business ventures, portfolio management and strategic planning.

Mr. Nightingale joined Gran Tierra Energy in 2009, where he served in Gran Tierra Energy's Calgary, Canada office as its Vice President of Exploration from 2009 to 2011 and was promoted to President of Gran Tierra Energy Colombia in August 2011.

Mr. Nightingale graduated from the University of Nottingham in the U.K. with a Bachelor of Science degree with honors in Geology.

Specifically Mr. O'Leary will retire on October 1, 2014, with Mr. Nightingale taking on the COO role effective September 1, 2014.

Adrian Coral, currently Senior Operations Manager, Gran Tierra Energy Colombia, will be promoted to President, Gran Tierra Energy Colombia to replace Mr. Nightingale.

Mr. Coral is a professional Engineer with a total of 18 years of experience in the oil and gas industry. Mr. Coral joined Gran Tierra Energy in 2006 as an operations engineer in Gran Tierra Energy Colombia, and was promoted to Senior Operations Manager of Gran Tierra Energy Colombia in 2013.

Mr. Coral graduated from the Universidad de América - Bogotá D.C. with a degree in Petroleum Engineering and from the School of Business Management - Bogotá D.C with a degree in Project Management.

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