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 filings with the SEC are available on the SEC website at http://www.sec.gov. Gran
Tierra’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.
Forward-Looking Statements and Legal Advisories
This press release contains opinions, forecasts, projections and other statements about future events or results that constitute forward-looking statements
within the meaning of the United States Private Securities Litigation Reform Act of 1995, Section 27A of the Securities Act of 1933, as amended, and Section 21E of the Securities Exchange Act of 1934, as amended, and financial outlook and
forward-looking information within the meaning of applicable Canadian securities laws (collectively, “forward-looking statements”). Forward-looking statements may be identified by words such as “anticipate,”
“believe,” “expect,” “intend,” “plan,” “will,” “may,” “should,” “could,” “estimate,” “forecast,” “target,”
“potential” and similar expressions. Such forward-looking statements include, but are not limited to, statements regarding the Sale, the timing and completion of the Sale, the satisfaction or waiver of the remaining conditions to
closing, including receipt of the required regulatory approvals in Colombia and Ecuador, the Company’s expected net cash proceeds from the Sale, the Company’s intention to return capital to stockholders through a share repurchase, the
Company’s expected financial position following completion of the Sale, and the Company’s plans and expectations for its Azerbaijan and Canadian portfolios following completion of the Sale.
The forward-looking statements contained in this press release reflect several material factors, expectations and assumptions of Gran Tierra. These include,
without limitation, that the required regulatory and other approvals for the Sale will be obtained, that the other conditions to completion of the Sale will be satisfied or waived, that the parties will perform their respective obligations under the
Share Purchase Agreement, that no event or circumstance will occur that would result in the termination of the Share Purchase Agreement, that the Sale will be completed on the anticipated terms and timeline, that the net proceeds of the Sale will be
applied to repay substantially all of the Company’s outstanding indebtedness, that transaction costs and taxes will be consistent with the Company’s expectations, and that Gran Tierra will continue to conduct its operations in a manner
consistent with its current expectations. Gran Tierra believes that the material factors, expectations and assumptions reflected in the forward-looking statements are reasonable at this time, but no assurance can be given that they will prove to be
correct.
Important factors could cause actual results to differ materially from those indicated by the forward-looking statements. Risks relating to the
Sale include the possibility that the required regulatory or other approvals are not obtained, the possibility that other conditions to completion are not satisfied or waived, delays in completing or the failure to complete the Sale, and the risk
that the Share Purchase Agreement is terminated in circumstances requiring Gran Tierra to pay a termination fee or bear other costs. They also include the amount and timing of transaction-related costs, potential adjustments to the consideration,
the risk that the net cash proceeds from the Sale are lower than expected, the risk that the Board of Directors determines not to proceed with, or to modify, any share repurchase, risks relating to the form, timing and receipt of the transaction
consideration, the effect of the pendency of the Sale on Gran Tierra’s business, operations, employees, counterparties and relationships, restrictions imposed on Gran Tierra’s business under the Share Purchase Agreement while the Sale is
pending, and potential litigation relating to the Sale. Other risks include risks relating to the Company’s exploration, development and production activities in Azerbaijan and Canada, volatility in commodity prices, market conditions and the
trading price of Gran Tierra’s common stock or senior notes, and the risk factors detailed from time to time in Gran Tierra’s periodic reports filed with the SEC, including under the caption “Risk Factors” in Gran
Tierra’s Annual Report on Form 10-K for the year ended December 31, 2025 and subsequent Quarterly Reports on Form 10-Q and Current Reports on Form 8-K, and in the definitive proxy statement filed on September 15, 2026. These filings are available on the SEC’s website at www.sec.gov and on SEDAR+ at www.sedarplus.ca.
The forward-looking statements contained in this press release are based on information available to Gran Tierra as of the date of this press release and
speak only as of such date. Gran Tierra disclaims any intention or obligation to update or revise any forward-looking statements, whether as a result of new information, future events or otherwise, except as expressly required by applicable law.