REG-Gran Tierra Energy Inc. Provides Release Date for its 2025 First Quarter Results and Details of Annual Meeting of Stockholders

Gran Tierra EnergyAnnouncement

24/04/2025 23:00

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CALGARY, Alberta, April 24, 2025 (GLOBE NEWSWIRE) -- Gran Tierra Energy Inc.
(“Gran Tierra” or the “Company”) (NYSE American:GTE) (TSX:GTE)
(LSE:GTE) announces that the Company will release its 2025 first quarter
financial and operating results on Thursday, May 1, 2025, post-market. Gran
Tierra will host its first quarter 2025 results conference call on Friday, May
2, 2025, at 9:00 a.m. Mountain Time, 11:00 a.m. Eastern Time.

Gran Tierra’s 2025 Annual Meeting of Stockholders will be held on Friday,
May 2, 2025, at 10:00 a.m. Mountain Time, 12:00 p.m. Eastern Time. Our Annual
Meeting will be held as a virtual-only stockholder meeting with participation
occurring electronically as explained further in the Proxy Statement dated
March 18, 2025.

How to Participate in the Virtual Annual Meeting

Shareholders can participate electronically at
https://web.lumiagm.com/208908912. We recommend that you log in 15 minutes
before the Annual Meeting starts. If you are a registered stockholder, to
attend the Annual Meeting and vote your shares electronically and submit
questions during the meeting, you will need the control number included on the
Notice of Internet Availability of Proxy Materials or proxy card that
accompanied your proxy materials. If you are the beneficial owner of shares
held in “street name” and wish to attend the meeting, insert your name in
the blank space included in the proxy form provided by your broker or other
agent and submit such proxy form to your broker or other agent prior to the
voting deadline to vote your shares and submit questions during the meeting.
In addition, you must also register your appointment (of your broker or other
agent) by emailing appointee@odysseytrust.com no later than the voting
deadline and provide Odyssey with your name, email, number of shares appointed
and name of broker or other agent where shares are held, so that Odyssey may
email the appointee their control number. Guests may also view the event at
https://web.lumiagm.com/20208908912 by registering as a guest.

Full details on how to vote, change or revoke a vote, appoint a proxyholder,
attend the virtual Annual Meeting, ask questions and other general proxy
matters are available in the Proxy Statement available on the Company's
website at https://www.grantierra.com/events/2025-annual-meeting/.

Whether or not you plan to attend the Annual Meeting, we urge you to vote and
submit your proxy in advance of the Annual Meeting by one of the methods
described in the proxy materials for the Annual Meeting.

How to Participate in the 2025 First Quarter Conference Call

Interested parties may register for the 2025 first quarter conference call by
clicking on this link
(https://www.globenewswire.com/Tracker?data=IGX2PZHOFI8SlEEbKWxVscAGzvItit09K6SY3PLREem5ltkbi1ZJlWVV1k__PVUCPO2D6nK-mYeeQFmnrUBgK6mIywdeIOoE5BhgxrbjU2s_-wfw8JLlRGMu2YUDbjrvSBqA_dKlqTiqqlMWfNxmYLHb41swAOK0tt3K6gjOtEA=).
Please note that there is no longer a general dial-in number to participate,
and each individual party must register through the provided link. Once
parties have registered, they will be provided a unique PIN and call-in
details. There is also a new feature that allows parties to elect to be called
back through the “Call Me” function on the platform.

Interested parties can also continue to access the live webcast from their
mobile or desktop devices by clicking on this link
(https://www.globenewswire.com/Tracker?data=IGX2PZHOFI8SlEEbKWxVsYmzm_fXaXR4tSevQMRnKMwq4j7K-r3nrZbvNUmdtP8eZdldo4ktqX7mPVKLmnuN8Wy1azGKa8btVQEzuKImcBI=),
which is also available on Gran Tierra's website at
https://www.grantierra.com/investor-relations/presentations-events/. An audio
replay of the conference call will be available at the same webcast link two
hours following the call and will be available until May 2, 2026.

Additional Information and Where to Find It

Shareholders may obtain a free copy of the proxy statement and other documents
the Company files with the SEC (when available) through the website maintained
by the SEC at www.sec.gov. The Company makes available free of charge on its
investor relations website copies of materials it files with, or furnishes to,
the SEC.

Contact Information

For investor and media inquiries please contact:

Gary Guidry
President & Chief Executive Officer

Ryan Ellson
Executive Vice President & Chief Financial Officer

+1-403-265-3221
info@grantierra.com

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 Canada, Colombia and Ecuador. The Company is
currently developing its existing portfolio of assets in Canada, Colombia and
Ecuador and will continue to pursue additional new 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. Additional information concerning
Gran Tierra is available at www.grantierra.com. Except to the extent expressly
stated otherwise, information on the Company’s website or accessible from
our website or any other website is not incorporated by reference into and
should not be considered part of this press release. Investor inquiries may be
directed to info@grantierra.com or (403) 265-3221.

Gran Tierra’s Securities and Exchange Commission (the “SEC”) filings are
available on the SEC website at http://www.sec.gov. The Company’s Canadian
securities regulatory filings are available on SEDAR+ at
http://www.sedarplus.ca and UK regulatory filings are available on the
National Storage Mechanism website at
https://data.fca.org.uk/#/nsm/nationalstoragemechanism