Gran Tierra Energy Inc. Announces Results of the Previously Announced Solicitation of Consents to Proposed Amendments to the Indenture Governing its Senior Secured Amortizing Notes due 2031

CALGARY, Alberta – Gran Tierra Energy Inc. has secured the necessary approval from bondholders holding its 9.750% Senior Secured Amortizing Notes due in 2031 to amend the note's governing indenture. A press release revealed that at least half of the note holders have given their consent to the proposed changes, with none of them revoking their support.

The call for consent was made on September 11, 2026. Gran Tierra, alongside its note guarantors and trustee, executed a supplemental indenture to implement the modifications, which became effective immediately after signing. However, the new terms will not take full effect until the closing of Gran Tierra's planned sale of its Colombian and Ecuadorian operations to Maurel & Prom.

The transaction, agreed upon in a share sale and purchase agreement on August 5, 2026, is expected to yield a total consideration of roughly $1.33 billion, minus any adjustments. Once the supplemental indenture is active, it will apply to all note holders, including those who did not submit a consent. Those who provided valid consent before the deadline will receive a consent fee upon the sale's completion.

BofA Securities, Inc. acted as the sole solicitation agent, while D.F. King & Co. Inc. handled the information and tabulation aspects. This report was produced with the assistance of AI and later reviewed by an editor.