Mr. Gary Guidry reports

GRAN TIERRA ENERGY INC. ANNOUNCES PRIVATE OFFERING OF AN ADDITIONAL AMOUNT OF ITS 9.500% SENIOR SECURED AMORTIZING NOTES DUE 2029

Gran Tierra Energy Inc. intends, subject to market and other conditions, to offer an additional amount of its previously issued 9.500 per cent senior secured amortizing notes due 2029 in a private placement to persons reasonably believed to be qualified institutional buyers in the United States pursuant to Rule 144A under the Securities Act of 1933, as amended, to non-U.S. persons in transactions outside the United States pursuant to Regulation S under the act, and pursuant to certain prospectus exemptions in Canada.

Gran Tierra currently has outstanding $487.59-million (U.S.) aggregate principal amount of 9.500 per cent senior secured amortizing notes due 2029. The notes will have the same terms and provisions as the original notes, except for the issue date and the issue price, and will form the same series as the original notes, including with respect to interest payments. Upon settlement, the notes are expected to trade under the same Cusip number as the original notes, except that the notes sold pursuant to Regulation S under the act will have a different Cusip number than the original notes until 40 days after the issue date of the notes.

The notes will be guaranteed by certain subsidiaries of Gran Tierra. Gran Tierra intends to use the net proceeds from the offering to repay the outstanding amounts borrowed under its existing credit facility (after which the credit facility will be terminated), and any remaining net proceeds from the offering for general corporate purposes, which may include additional capital to appraise and develop exploration discoveries, repayment of other indebtedness, working capital, and/or acquisitions.

About Gran Tierra Energy Inc.

Gran Tierra Energy together with its subsidiaries is an independent international energy company currently focused on international oil and natural gas exploration and production with assets currently in Colombia and Ecuador. The company is currently developing its existing portfolio of assets in Colombia and Ecuador and will continue to pursue additional growth opportunities that would further strengthen the company's portfolio. The company's common stock trades on the NYSE American, the Toronto Stock Exchange and the London Stock Exchange under the ticker symbol GTE.

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