GRAN TIERRA ENERGY INC. — fact timeline

GRAN TIERRA ENERGY INC. shareholders approved Advisory Vote to Approve Named Executive Officer Compensation at the 2026-05-08 meeting.

“Proposal 3 – Advisory Vote to Approve Named Executive Officer Compensation Gran Tierra’s stockholders approved, on an advisory basis, the compensation of Gran Tierra’s named executive officers, as disclosed in the Proxy Statement. The tabulation of votes on this matter was as follows: Shares voted for: 12,483,761 Shares voted against: 5,918,465 Shares abstaining: 97,513 Broker non-votes: 4,310,250”

GRAN TIERRA ENERGY INC. shareholders approved Ratification of Appointment of Independent Registered Public Accounting Firm at the 2026-05-08 meeting.

“Proposal 2 - Ratification of Appointment of Independent Registered Public Accounting Firm Gran Tierra’s stockholders ratified the selection of KPMG LLP as Gran Tierra’s independent registered public accounting firm for the fiscal year ending December 31, 2026. The tabulation of votes on this matter was as follows: Shares voted for: 17,093,544 Shares voted against: 5,687,961 Shares abstaining: 28,484 Broker non-votes: 0”

GRAN TIERRA ENERGY INC. shareholders approved Election of Directors at the 2026-05-08 meeting.

“Proposal 1 - Election of Directors Gran Tierra’s stockholders duly elected each of the five nominees proposed by Gran Tierra to serve until Gran Tierra’s 2027 Annual Meeting of Stockholders or until their respective successor has been duly elected and qualified. The tabulation of votes on this matter was as follows: Nominee Shares Voted For Shares Voted Against Shares Abstaining Broker Non-Votes Gary S. Guidry 12,614,259 5,823,845 61,635 4,310,250 Robert B. Hodgins 12,644,729 5,805,015 49,995 4,310,250 Alison Redford 12,559,307 5,852,219 88,213 4,310,250 Ronald W. Royal 12,498,040 5,932,519 69,180 4,310,250 Brooke Wade 12,558,581 5,857,907 83,251 4,310,250”

GRAN TIERRA ENERGY INC. incurred senior notes of US$11,717,000 aggregate principal amount with U.S. Bank Trust Company, National Association at 9.750% per year maturing April 15, 2031.

“On March 2, 2026, Gran Tierra Energy Inc., a Delaware corporation (the “Company”), issued US$11,717,000 aggregate principal amount of additional 9.750% Senior Secured Amortizing Notes due 2031 (the “Additional Notes”), in exchange for US$11,717,000 aggregate principal amount of the Company’s 9.500% Senior Secured Amortizing Notes due 2029 (the “Existing Notes”).”

GRAN TIERRA ENERGY INC. reported financial results for the year ended December 31, 2025.

“Gran Tierra Energy Inc. issued a press release announcing its financial and operating results for the year-end December 31, 2025.”

GRAN TIERRA ENERGY INC. incurred senior notes of US$487,590,000 aggregate principal amount with U.S. Bank Trust Company, National Association at 9.750% maturing April 15, 2031.

“On February 18, 2026, Gran Tierra Energy Inc., a Delaware corporation (the “Company”), issued US$487,590,000 aggregate principal amount of its 9.750% Senior Secured Amortizing Notes due 2031 (the “Notes”)”

GRAN TIERRA ENERGY INC. incurred credit facility of additional advances of up to $175 million, and an uncommitted accordion advance of up to $25 million with Trafigura PTE LTD and Trafigura Marketing Colombia S.A.S..

“collectively, the “Sellers”), and Trafigura PTE LTD and Trafigura Marketing Colombia S.A.S. (collectively, the “Buyers” and, together with the Sellers, the “Parties”) entered into several crude oil sale and purchase”

GRAN TIERRA ENERGY INC. amended credit facility of borrowing base reduced to $60 million with lenders including Trafigura PTE Ltd..

“In connection with the execution of the Oriente Crude Oil Agreements, on October 23, 2025 the Company, as guarantor, the Seller, as borrower, certain indirect subsidiaries of the Company, as additional guarantors, the lenders party thereto, including the Buyer, and GLAS USA LLC, as administrative agent, entered into an amendment and consent (the “Amendment”) to the existing Credit Agreement (as thereby amended, the “Amended Credit Agreement”). The Amendment, among other things, consents to and permits Seller and the Company to execute and perform the Oriente Crude Oil Agreements, reduces the borrowing base under the Amended Credit Agreement from its then current amount to $60 million, requires the Seller to prepay outstanding loans to reduce the aggregate outstanding principal amount to no more than $20 million upon the earlier of the first disbursement under the Prepayment Addendum or January 23, 2026, and makes certain adjustments to financial covenants to account for the Oriente Cru”

GRAN TIERRA ENERGY INC. incurred debt of initial advance in an aggregate amount not to exceed $150 million; additional advance of up to $50 million with Trafigura PTE Ltd. maturing four years after the date of the Prepayment Addendum.

“he Company, as guarantor, and Trafigura PTE Ltd. (the “Buyer”), entered into a crude oil sale and purchase agreement (the”

Peter Dey resigned as Director at GRAN TIERRA ENERGY INC..

“On June 18, 2025, Peter Dey informed the Board of Directors (the “Board”) of Gran Tierra Energy Inc. (the “Company”) that he will resign for personal reasons from the Board effective June 30, 2025.”

GRAN TIERRA ENERGY INC. incurred revolving credit of $75 million with GLAS USA LLC at base rate (subject to a floor of 1.00%) plus an applicable margin of 4.50% or a maturing April 16, 2028.

“The Credit Agreement provides for a revolving credit facility up to the then effective Borrowing Base (as defined in the Credit Agreement), which was equal to $75 million as of the Closing Date. Loans under the Credit Agreement mature on April 16, 2028”

GRAN TIERRA ENERGY INC. shareholders approved Approval of Named Executive Officer Compensation at the 2024-05-02 meeting.

“Proposal 3 - Approval of Named Executive Officer Compensation Gran Tierra’s stockholders approved, on an advisory basis, the compensation of Gran Tierra’s named executive officers”

GRAN TIERRA ENERGY INC. shareholders approved Ratification of Appointment of Independent Registered Public Accounting Firm at the 2024-05-02 meeting.

“Proposal 2 - Ratification of Appointment of Independent Registered Public Accounting Firm Gran Tierra’s stockholders ratified the selection of KPMG LLP”

GRAN TIERRA ENERGY INC. shareholders approved Election of Directors at the 2024-05-02 meeting.

“Proposal 1 - Election of Directors Gran Tierra’s stockholders duly elected each of the nine nominees proposed by Gran Tierra”

GRAN TIERRA ENERGY INC. reported quarter ended March 31, 2024 results: net income net loss of $0.1 million.

“Gran Tierra Energy Inc. issued a press release announcing its financial and operating results for the quarter ended March 31, 2024.”

GRAN TIERRA ENERGY INC. reported year ended December 31, 2023 results: net income net loss of $6.3 million or $0.19 per share (basic and diluted), EPS $0.19 per share (basic and diluted). Guidance reaffirmed.

“Gran Tierra realized a net loss of $6.3 million or $0.19 per share (basic and diluted), compared to net income of $139.0 million , or $3.81 per s hare (basic) and $3.76 per share (diluted) in 2022”

GRAN TIERRA ENERGY INC. terminated amended and restated credit facility with Trafigura PET Ltd. valued at Terminated credit facility with no material early termination penalties (effective 2024-02-06).

“Gran Tierra Energy Inc. (the "Company"), as guarantor, and Gran Tierra Energy Colombia GmbH and Gran Tierra Operations Colombia GmbH, as borrowers, terminated the amended and restated credit facility (the "credit facility"), dated as of September 19, 2023, with Trafigura PET Ltd., as lender. The Company used a portion of the net proceeds from its recently completed private placement of senior notes to voluntarily prepay all outstanding amounts under the credit facility and did not incur any material early termination penalties. Upon the full payment and satisfaction of the credit facility, the guarantee and security interests securing obligations under the credit facility were extinguished and terminated.”

GRAN TIERRA ENERGY INC. incurred senior notes of US$100,000,000 aggregate principal amount with U.S. Bank Trust Company, National Association at 9.500% maturing due 2029.

“issued US$100,000,000 aggregate principal amount of additional 9.500% Senior Secured Amortizing Notes due 2029”

Rodger Trimble retired as Vice President, Investor Relations at GRAN TIERRA ENERGY INC..

“On January 29, 2024, Rodger Trimble, Vice President, Investor Relations, notified Gran Tierra Energy Inc. (the “Company”) of his decision to retire from the Company effective as of March 1, 2024.”

GRAN TIERRA ENERGY INC. reported financial results for the quarter ended September 30, 2023.

“On October 31, 2023, Gran Tierra Energy Inc. issued a press release announcing its financial and operating results for the quarter ended September 30, 2023.”

Sebastien Morin was appointed as Chief Operating Officer at GRAN TIERRA ENERGY INC..

“On October 31, 2023, the Board of Directors of Gran Tierra Energy Inc. (the “Company”) appointed Sebastien Morin as Chief Operating Officer of the Company, effective November 6, 2023, to serve until his successor is chosen and qualified or until his resignation, retirement, disqualification or removal from office.”

GRAN TIERRA ENERGY INC. incurred senior notes of US$487,590,000 aggregate principal amount with U.S. Bank Trust Company, National Association at 9.500% per year maturing October 15, 2029.

“On October 20, 2023, Gran Tierra Energy Inc., a Delaware corporation (the “Company”), issued US$487,590,000 aggregate principal amount of its 9.500% Senior Secured Amortizing Notes due 2029”

GRAN TIERRA ENERGY INC. amended credit facility of US$50 million with Trafigura PTE Ltd..

“s borrowers, and Trafigura PTE Ltd.(“Trafigura”), as a lender, entered into a second amended and restated facility agreement”

GRAN TIERRA ENERGY INC. reported the quarter ended June 30, 2023 results: net income $11 million, EPS $0.33 per share.

“On August 1, 2023 , Gran Tierra Energy Inc. issued a press release announcing its financial and operating results for the quarter ended June 30, 2023.”

GRAN TIERRA ENERGY INC. updated its second quarter 2023 guidance (reaffirmed).

“Gran Tierra Energy Inc. Provides Operational Update • Achieved Second Quarter 2023 Total Company Average Production of Approximately 33,800 BOPD”

GRAN TIERRA ENERGY INC.: 对公司章程进行修订，实施1:10反向股票拆分，调整授权股份数量为5700万股普通股和2500万股优先股。 (effective 2023-05-05).

“On May 4, 2023, the Company filed a Certificate of Amendment, effective as of May 5, 2023 (the “Amendment”), to the Company’s Certificate of Incorporation to effectuate the reverse stock split as of 12:01 a.m. Eastern Time on May 5, 2023.”

GRAN TIERRA ENERGY INC. shareholders approved Approval of 1-for-10 Reverse Stock Split at the 2023-05-03 meeting.

“Proposal 4 - Approval of 1-for-10 Reverse Stock Split Gran Tierra’s stockholders approved an amendment to Gran Tierra’s Certificate of Incorporation to effect a 1-for-10 reverse stock split of Gran Tierra’s common stock. The tabulation of votes on this matter was as follows: Shares voted for: 177,137,400 Shares voted against: 31,365,266 Shares abstaining: 996,222 Broker non-votes: 3”

GRAN TIERRA ENERGY INC. shareholders approved Approval of Named Executive Officer Compensation at the 2023-05-03 meeting.

“Proposal 3 - Approval of Named Executive Officer Compensation Gran Tierra’s stockholders approved, on an advisory basis, the compensation of Gran Tierra’s named executive officers, as disclosed in the Proxy Statement. The tabulation of votes on this matter was as follows: Shares voted for: 120,250,269 Shares voted against: 15,696,298 Shares abstaining: 2,272,409 Broker non-votes: 71,279,915”

GRAN TIERRA ENERGY INC. shareholders approved Ratification of Appointment of Independent Registered Public Accounting Firm at the 2023-05-03 meeting.

“Proposal 2 - Ratification of Appointment of Independent Registered Public Accounting Firm Gran Tierra’s stockholders ratified the selection of KPMG LLP as Gran Tierra’s independent registered public accounting firm for the fiscal year ending December 31, 2023. The tabulation of votes on this matter was as follows: Shares voted for: 201,486,930 Shares voted against: 6,616,831 Shares abstaining: 1,395,129 Broker non-votes: 1”

GRAN TIERRA ENERGY INC. shareholders approved Election of Directors at the 2023-05-03 meeting.

“Proposal 1 - Election of Directors Gran Tierra’s stockholders duly elected each of the nominees proposed by Gran Tierra to serve until Gran Tierra’s 2024 Annual Meeting of Stockholders or until their respective successor has been duly elected and qualified. The tabulation of votes on this matter was as follows: Nominee Shares Voted For Shares Voted Against Shares Abstaining Broker Non-Votes Gary S. Guidry 128,908,156 7,934,258 1,376,562 71,279,915 Peter J. Dey 106,689,895 29,468,121 2,060,959 71,279,916 Evan Hazell 123,472,188 11,116,598 3,630,190 71,279,915 Robert B. Hodgins 119,081,520 17,067,177 2,070,279 71,279,915 Alison Redford 122,566,277 13,586,524 2,066,175 71,279,915 Ronald W. Royal 128,919,291 7,256,324 2,043,361 71,279,915 Sondra Scott 122,720,697 13,455,629 2,042,650 71,279,915 David P. Smith 128,755,514 7,392,838 2,070,624 71,279,915 Brooke Wade 123,561,136 12,591,957 2,065,883 71,279,915”

GRAN TIERRA ENERGY INC. reported financial results for the quarter ended March 31, 2023.

“On May 2, 2023 , Gran Tierra Energy Inc. issued a press release announcing its financial and operating results for the quarter ended March 31, 2023.”

GRAN TIERRA ENERGY INC. reported preliminary financial results for first quarter 2023.

“Achieved First Quarter 2023 Total Company Average Production of Approximately 31,700 BOPD, an Increase of 8% from First Quarter 2022”

GRAN TIERRA ENERGY INC. reported the year ended December 31, 2022 results: net income $139 Million, EPS $0.38 per Share, Basic.

“Achieved 2022 Net Income of $139 Million ($0.38 per Share, Basic), Highest on Record”

GRAN TIERRA ENERGY INC. reported financial results for full year 2022.

“Gran Tierra’s total average production for the full year 2022 was approximately 30,800 BOPD which is within the Company’s prescribed guidance.”

GRAN TIERRA ENERGY INC. reported financial results for Fourth Quarter 2022.

“During fourth quarter 2022, Gran Tierra’s total average production was approximately 32,600 BOPD.”

GRAN TIERRA ENERGY INC. reported the quarter ended September 30, 2022 results: revenue $168 million, net income $39 million, EPS $0.10 per share.

“• Third Quarter 2022 Average Production of 30,391 BOPD, Up 5% from One Year Ago • Fourth Quarter-To-Date 2022 Average Production (1 ) of 32,291 BOPD • Net Income of $39 Million, $168 Million Over The Last 12 Months • Adjusted EBITDA (2) of $121 Million, Up 48% Year-on-Year, $462 Million Over Last 12 Months • Net Cash Provided by Operating Activities of $109 Million,”

Alison Redford was appointed as director at GRAN TIERRA ENERGY INC..

“On September 1, 2021, the Board of Directors (the “Board”) of Gran Tierra Energy Inc. (“Gran Tierra”) increased the size of the Board to nine members and appointed Alison Redford as a director effective immediately.”