Gran Tierra Energy Inc. Completes Reverse Stock Split - Seite 2

The reverse stock split affected all holders of common stock uniformly and did not affect any shareholder’s percentage ownership interest in the Company, except as a result of the treatment of fractional shares. The reverse stock split did not have any direct impact on the market capitalization of the Company, nor modify any voting rights or other terms of the common stock.

Stockholders with shares held in book-entry form or through a bank, broker, or other nominee were not required to take any action and will see the consequence of the reverse stock split reflected in their accounts on or after May 5, 2023. Such beneficial holders may contact their bank, broker, or nominee for more information.

The Company’s transfer agent, Odyssey Trust Company ("Odyssey"), is acting as the exchange agent for the reverse share split. In connection with the reverse share split, Odyssey has sent a letter of transmittal to registered shareholders which will enable them to exchange their old share certificates for a Direct Registration System Advice/Statement, representing the number of new post-reverse share split common shares they hold, in accordance with the instructions provided in the letter of transmittal. Registered shareholders will be able to obtain additional copies of the letter of transmittal through Odyssey. Until surrendered, each share certificate representing pre-reverse share split common shares will represent the number of whole post-reverse share split common shares to which the holder is entitled as a result of the reverse share split.

Non-registered beneficial holders holding their common shares through intermediaries (securities brokers, dealers, banks, financial institutions, etc.) will not need to complete a letter of transmittal and should note that such intermediaries may have specific procedures for processing the reverse share split, including the treatment of fractional shares. Shareholders holding their common shares through an intermediary and who have any questions in this regard are encouraged to contact their intermediary.

Contact Information

For investor and media inquiries please contact:

Gary Guidry

President & Chief Executive Officer

Ryan Ellson

Executive Vice President & Chief Financial Officer

Rodger Trimble

Vice President, Investor Relations

[phone]

[e-mail]

About Gran Tierra Energy Inc.

Gran Tierra Energy Inc. together with its subsidiaries is an independent international energy company currently focused on oil and natural gas exploration and production 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 TSX and the LSE under the ticker symbol GTE. Additional information concerning Gran Tierra is available at www.grantierra.com. Information on the Company’s website does not constitute a part of this press release. Investor inquiries may be directed to [e-mail] or [phone].