Gran Tierra Energy Inc. entered into a contract on March 17, 2026 to earn a 49 % working interest in the Tisquirama block, located in Colombia’s Middle Magdalena Valley Basin. The block contains the Tisquirama and San Roque fields, which sit adjacent to Gran Tierra’s flagship Acordionero field and share similar geological characteristics.
The acquisition is strategically positioned to leverage Gran Tierra’s proven water‑flood expertise and operational efficiencies. By integrating the Tisquirama block with its existing Colombian operations, the company expects to create synergies in water management, reduce operating costs, and extend the life of the Acordionero field. The proximity of the new block also opens opportunities to use natural gas for power and to apply horizontal and multilateral drilling techniques that Gran Tierra has successfully deployed elsewhere.
Gran Tierra has committed to a phased capital program totaling $92.4 million, with a $47.1 million capital carry spread over 40 months. Phase 1 requires a minimum of $15 million in capital expenditures and continuous water injection, slated for completion in the first quarter of 2027. The investment is part of a broader strategy to unlock the block’s original oil in place, which has historically been under‑developed.
The transaction comes at a time when Gran Tierra’s financial health is under pressure. The company reported a net loss of $193 million for 2025, a sharp decline from a modest net income in 2024, and a distressed Altman Z‑Score. S&P Global Ratings downgraded the company’s outlook to negative in January 2026, citing weak cash‑flow generation and high leverage. These factors underscore the importance of the capital commitment and the need for disciplined execution to avoid further financial strain.
Market reaction to the announcement was muted, with the stock falling 12.2 % in pre‑market trading on March 18, 2026. The decline was largely driven by unrelated board resignations and concerns over governance, rather than the acquisition itself. Analysts remain cautious, maintaining a “hold” stance while noting that the Tisquirama deal could provide a long‑term upside if the company can manage its debt and execute the development plan efficiently.
Gran Tierra’s president and CEO, Gary Guidry, emphasized that the contract represents a strategic opportunity to apply the company’s operating model and water‑flood expertise to enhance recovery and extend field life. He highlighted the potential to adopt modern technologies, including horizontal and multilateral drilling, to unlock the block’s resources.
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