Gran Tierra Energy Announces Management Changes

               Gran Tierra Energy Announces Management Changes

PR Newswire

CALGARY, July 1, 2014

CALGARY, July 1,  2014 /PRNewswire/ -  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 overthe  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.

Contact:

For investor and media inquiries please contact:
Jason Crumley
Director, Investor Relations
403-265-3221
info@grantierra.com
www.grantierra.com
 
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