News Release

Gran Tierra Exchangeco Inc. To Trade On Toronto Stock Exchange

November 17, 2008

Gran Tierra Exchangeco Inc. - (the “Company”) – An application has been granted for the original listing in the oil and gas category of 69,104,635 exchangeable shares, all of which will be issued. Each exchangeable share is exchangeable, at the holder’s option, on a one-for-one basis into common stock of Gran Tierra Energy Inc. (Symbol: GTE) (“Gran Tierra Common Stock”) and has the same voting rights, dividend entitlements, and other attributes as Gran Tierra Common Stock.

The common shares of the Company will be listed and posted for trading at the opening on Wednesday, November 19, 2008.

The Company is subject to the reporting requirements of Section 501 of TSX's Company Manual.

Stock Symbol: “GTX”
CUSIP: 38500Y 10 0
Trading Currency: CDN
     
Temporary Market Maker:               Jones, Gable & Company Limited

Other Markets:     None.

Head Office Address:     300, 611 - 10 Avenue SW
Calgary, AB
T2R 0B2

Head Office Telephone Number:     (403) 265-3221

Fax Number:     (403) 265-3242

Website:     www.grantierra.com

Investor Relations:     Martin Eden
Tel: (403) 265-3221 ext. 230
Email: martineden@grantierra.com

Chief Financial Officer:     Martin Eden

Corporate Secretary:     Heather Campbell

Incorporation:     The Company was incorporated on July 25, 2008, pursuant to the Business Corporations Act (Alberta).

Fiscal Year End:     December 31

Nature of Business:     The Company is an indirect, wholly-owned subsidiary of Gran Tierra Energy Inc., which carries out exploration for, and production of, oil and natural gas in Argentina, Colombia and Peru.

Transfer Agent & Registrar:     Computershare Trust Company of Canada at its offices in Calgary and Toronto.

Dividends:     Holders of exchangeable shares are entitled to receive from the Company dividends that are equivalent to any dividends paid on Gran Tierra Common Stock. To date Gran Tierra Energy Inc. has not paid any dividends on Gran Tierra Common Stock and does not intend to pay any cash dividends for the foreseeable future.