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Gran Tierra Energy Inc. Extends Redemption Date for the Exchangeable Shares

 Gran Tierra Energy Inc. Extends Redemption Date for the Exchangeable Shares

PR Newswire

CALGARY, Oct. 25, 2013

CALGARY, Oct. 25, 2013 /PRNewswire/ - Gran Tierra Exchangeco Inc.
("Exchangeco") (TSX: GTX) and Gran Tierra Energy Inc. ("Gran Tierra Energy")
(NYSE MKT: GTE, TSX: GTE), announce that, in accordance with the terms and
conditions of the exchangeable shares (the "Exchangeable Shares") of
Exchangeco, the board of directors of Exchangeco has determined that the
redemption date for the Exchangeable Shares (the "Redemption Date") will be
extended from November 14, 2013 to such later date as may be established by
the board of directors of Exchangeco at its discretion. Pursuant to the terms
and conditions of the Exchangeable Shares, the board of directors of
Exchangeco is entitled to establish a Redemption Date at its discretion. The
previously disclosed Redemption Date of November 14, 2013 was originally set
out in the Joint Management Information Circular and Proxy Statement of Gran
Tierra Energy Inc. and Solana Resources Limited dated October 10, 2008 (the
"Circular") and was based upon a prior determination of the board of directors
of Exchangeco to redeem the Exchangeable Shares on such date. If the board of
directors of Exchangeco establishes a new Redemption Date, notice of such date
will be provided to the holders of Exchangeable Shares. Except with respect to
such Redemption Date, the terms and conditions of the Exchangeable Shares, as
previously set forth in the Circular, continue to be applicable in all
respects, including without limitation in respect of the rights of retraction
and exchange of the holders of the Exchangeable Shares, and this press release
should be read in conjunction therewith.

Questions and requests for assistance relating  to the exercise of a  holder's 
rights of exchange or retraction of the Exchangeable Shares may be directed to
the transfer agent for the Exchangeable Shares, Computershare Trust Company of
Canada, between  the  hours  of 8:30  a.m.  and  8:00 p.m.  Eastern  Time,  at 
1-800-564-6253 (toll  free in  Canada and  the United  States of  America)  or 
+1-514-982-7555 (international direct dial).

About Exchangeco

Exchangeco is a subsidiary of Gran Tierra Energy. Exchangeco does not carry on
any business independently; rather,  the Exchangeable Shares are  exchangeable 
into common stock  of Gran Tierra  Energy and have,  in accordance with  their 
terms and certain contractual arrangements,  the same voting rights and  other 
attributes as the common stock of Gran Tierra Energy.

About Gran Tierra Energy

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, Argentina,  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