GRAN TIERRA ENERGY INC

a) On October 31, 2024, we acquired all of the issued and outstanding common shares of i3 Energy for $225.4 million, consisting of cash consideration of $168.9 million, a cash dividend of $4.2 million and approximately 6.0 million shares of Gran Tierra’s Common Stock, the fair value of which was determined to be $52.3 million based on the closing price of the Company’s shares on the acquisition date. i3 Energy is an oil and gas exploration and production company, incorporated in England and Wales with production assets located in the Western Canadian Sedimentary basin. The acquisition was accounted for as a business combination using the acquisition method. During the three and nine months ended September 30, 2024, we incurred approximately $1.5 million in transaction costs associated with the acquisition of i3 Energy.

b) In connection with i3 Energy acquisition closing on October 31, 2024, we amended and restated the existing revolving credit facility agreement of i3 Energy Canada Ltd. (“i3 Energy Canada”) with National Bank of Canada dated March 22, 2024. As a result of the amendment and restatement, among other things, the borrowing base was revised to C$100.0 million (US$74.1 million) with available commitment of a C$50.0 million (US$37.0 million) revolving credit facility comprised of C$35.0 million (US$25.9 million) syndicated facility and C$15.0 million (US$11.1 million) of operating facility. Subject to the next borrowing base redetermination which will occur on or before June 30, 2025, the revolving credit facility is available until October 31, 2025 with a repayment date of October 31, 2026, which may be extended by further periods of up to 364 days, subject to lender approval. The drawn down amounts under the revolving credit facility can either be in Canadian or U.S. dollars and bear interest rates equal to either the Canadian prime rate or U.S. Base Rate plus a margin ranging from 2.00% to 4.00% per annum or for CORRA loans and SOFR loans plus a margin ranging from 3.00% to 5.00% per annum. Undrawn amounts under the revolving credit facility bear standby fee ranging from 0.75% to 1.25% per annum. In each case, the margin or standby fee, as applicable is based on Net Debt to EBITDA ratio of Gran Tierra Canada Ltd.

The foregoing description of the Credit Agreement is not complete and is qualified in its entirety by reference to the Credit Agreement, a copy of which is filed as Exhibit 10.3 to this Quarterly Report on Form 10-Q.

c) During the three months ended September 30, 2024, no director or Section 16 officer adopted or terminated any Rule 10b5-1 trading arrangements or non-Rule 10b5-1 trading arrangements (in each case, as defined in Item 408(a) of Regulation S-K).