Gran Tierra to buy back up to 36M shares through normal course issuer bid

Gran Tierra Energy announces that the Toronto Stock Exchange has approved its notice of intention to make a normal course issuer bid for its shares of common stock. As of August 22, there were 368,871,685 Shares issued and outstanding and the public float was 360,339,690 Shares. Pursuant to the Bid, Gran Tierra will be able to purchase for cancellation up to 36,033,969 Shares, representing 10% of the public float, at prevailing market prices at the time of purchase, through the facilities of the TSX or alternative trading platforms in Canada, if eligible, or by such other means as may be permitted by the TSX, for a one year period commencing on September 1 and ending on August 31, 2023. Gran Tierra may purchase up to 514,658 Shares on the TSX during any trading day, which represents approximately 25% of 2,058,635, which represents the average daily trading volume on the TSX for the most recently completed six calendar months prior to the TSX's acceptance of the notice of the Bid. Gran Tierra may effect repurchases from time to time in the open market; provided that the aggregate purchase price under the Bid shall not exceed USD$37.5M without further consideration of and approval by Gran Tierra's board of directors. Management of Gran Tierra believes that the Shares, at times, have been trading in a price range which does not adequately reflect their value in relation to Gran Tierra's current operations, growth prospects and financial position. At such times, the purchase of Shares for cancellation or to satisfy awards granted under Gran Tierra's 2007 Equity Incentive Plan may be advantageous to stockholders by increasing the value of the Shares.