Gran Tierra Energy Announces Management Changes

 CALGARY, July 1, 2014 /CNW/ - Gran Tierra Energy Inc. ("Gran Tierra Energy")  (NYSE MKT: GTE) (TSX: GTE), a company focused on oil exploration and  production in South America, today announces management changes.  Shane O'Leary, Gran Tierra Energy's Chief Operating Officer ("COO"), has  elected to retire. Duncan Nightingale, currently President, Gran Tierra Energy  Colombia, will be promoted to COO to replace Mr. O'Leary.  Adrian Coral,  currently Senior Operations Manager, Gran Tierra Energy Colombia, will be  promoted to President, Gran Tierra Energy Colombia to replace Mr. Nightingale.  "Shane has played a key role in the successful growth of Gran Tierra Energy  over the past five years, and he has been an influential factor in creating  Gran Tierra Energy's positive reputation in the industry. Similarly, Duncan  has been a guiding influence on the continued success of our Colombia business  in recent years," said Dana Coffield, President and Chief Executive Officer of  Gran Tierra Energy. "Adrian Coral has held progressively responsible positions  in the Gran Tierra Energy Colombia business unit and brings significant  experience from other multinational companies to build on our success,"  concluded Coffield.  O'Leary added, "Gran Tierra Energy has the unique combination of great people  and high impact projects. It's been a great experience being part of the  growth story over the past five years and I look forward to following ‎the  success of the company going forward."  To ensure a smooth transition, there will be a one month overlap of positions.   Specifically Mr. O'Leary will retire on October 1, 2014, with Mr. Nightingale  taking on the COO role effective September 1, 2014.  Adrian moves into the  President, Gran Tierra Energy Colombia role on August 1, 2014, providing a one  month overlap with Mr. Nightingale.  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.  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.  About Gran Tierra Energy Inc.  Gran Tierra Energy is an international oil and gas exploration and production  company, headquartered in Calgary, Canada, incorporated in the United States,  trading on the NYSE MKT (GTE) and the Toronto Stock Exchange (GTE), and  operating in South America. Gran Tierra Energy holds interests in producing  and prospective properties in 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.    SOURCE  Gran Tierra Energy Inc.  For investor and media inquiries please contact: Jason Crumley Director,  Investor Relations 403-265-3221 info@grantierra.com www.grantierra.com  To view this news release in HTML formatting, please use the following URL:  http://www.newswire.ca/en/releases/archive/July2014/01/c9393.html  CO: Gran Tierra Energy Inc. ST: Alberta NI: OIL 2575 WNEWS  
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