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 
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 and on SEDAR at

SOURCE  Gran Tierra Energy Inc. 
For investor and media inquiries please contact: Jason Crumley Director, 
Investor Relations 403-265-3221 
To view this news release in HTML formatting, please use the following URL: 
CO: Gran Tierra Energy Inc.
ST: Alberta
NI: OIL 2575 WNEWS  
-0- Jul/01/2014 22:00 GMT
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