Gran Tierra Energy (GTE) Corporate presentation summary

Transaction and pro forma value

• Colombia and Ecuador divestiture valued at $1.33B; purchaser assumes senior notes and prepayment facility, leaving debt at zero at close.

• Total cash proceeds of $315MM: $250MM at close and a $65MM unsecured note payable 364 days later.

• Consideration equals 97% of estimated after-tax 2P NPV10; implied 83% premium to the $6.82 20-day VWAP.

• Pro forma PDP NAV of $12.49 per diluted share combines $315MM cash proceeds and $164.5MM Canadian PDP NPV10.

• Potential share repurchase is subject to transaction closing and stockholder approval; targeted completion is Dec 2026, with approvals pending.

Go-forward portfolio and financing

• Pro forma Canadian production targeted at 12–13 MBOEPD, with 86 MMBOE of 2P reserves and an 18-year reserve life index.

• Retained portfolio includes 80 MMBOE of unrisked gross 2C contingent resources and 67 MMBOE of unrisked gross P50 prospective resources; neither is reserves.

• Estimated annual interest savings of $80MM post-closing; a C$75MM Canadian credit facility remains undrawn.

• Capital allocation is directed toward retained Canadian assets and Azerbaijan, with a debt-free balance sheet and potential return of capital to stockholders.

Canadian development opportunities

• Clearwater position spans ~89,000 net acres at 100% working interest; Dawson and Seal have 1.26B bbl P50 OOIP and 54.8MMbbl unrisked P50 prospective resources.

• Clearwater concept pairs multilateral producers with water injection from startup; 74 identified locations represent about seven years of development inventory.

• Mount Head holds ~19,200 net acres and 11.7MMbbl unrisked P50 prospective resources across a Mississippian light-oil play.

• Central Alberta contributes ~9,800 net boe/d and 83 gross booked locations; Wapiti adds ~2,200 net boe/d across more than seven prospective horizons.

• Historical South American waterflood results include ~49MMBOE produced from Acordionero versus ~18MMBOE of 1P reserves at acquisition; performance is presented as a technical track record, not a Clearwater forecast.