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AI Earnings Predictions for Gran Tierra Energy Inc. (GTE)

Machine learning predictions based on historical earnings data and price patterns

Latest Prediction

BUY

1-Day Prediction

-0.33%

$6.87

100% positive prob.

5-Day Prediction

+6.70%

$7.35

100% positive prob.

20-Day Prediction

+7.48%

$7.41

95% positive prob.

Price at prediction: $6.89 Confidence: 100.0% Model AUC: 1.0000 Quarter: Q4 2025

Earnings Transcripts

SEC 8-K filings with transcript text

View All
2025
Q4

Q4 2025 Earnings

8-K BUY

Mar 4, 2026 · 100% conf.

AI Prediction BUY

1D

-0.33%

$6.87

5D

+6.70%

$7.35

20D

+7.48%

$7.41

Price: $6.89 Prob +5D: 100% AUC: 1.000
0001273441-26-000007

gte-20260303false000127344100012734412026-03-032026-03-03

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 8-K

CURRENT REPORT

Pursuant to Section 13 or 15(d) of the

Securities Exchange Act of 1934

Date of Report (Date of earliest event reported): March 3, 2026

GRAN TIERRA ENERGY INC.

(Exact name of Registrant as specified in its charter)

Delaware98-0479924 (State or other jurisdiction of incorporation)(I.R.S. Employer Identification No.)

Commission file number: 001-34018

500 Centre Street S.E. Calgary, Alberta, Canada T2G 1A6 (Address of principal executive offices and zip code)

Registrant's telephone number, including area code: (403) 265-3221

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions (see General Instruction A.2. below):

☐ Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)

☐ Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)

☐ Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))

☐ Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))

Securities registered pursuant to Section 12(b) of the Act: Title of each class Trading Symbol(s) Name of each exchange on which registered

Common Stock, par value $0.001 per share GTE NYSE American

Toronto Stock Exchange

London Stock Exchange

Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (§230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (§240.12b-2 of this chapter). Emerging growth company ☐

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act.                                      ☐

Item 2.02. Results of Operations and Financial Condition.

On March 3, 2026, Gran Tierra Energy Inc. issued a press release announcing its financial and operating results for the year-end December 31, 2025. A copy of the press release is attached hereto as Exhibit 99.1 and incorporated by reference herein in its entirety.

The information in this Item 2.02 and in Exhibit 99.1 attached to this report is being furnished and shall not be deemed “filed” for the purposes of Section 18 of the Securities Exchange Act of 1934, as amended (the “Exchange Act”), or otherwise subject to the liabilities of that section, nor shall it be deemed to be incorporated by reference into any filing by Gran Tierra Energy Inc. under the Securities Act of 1933, as amended or the Exchange Act, regardless of any general incorporation language contained in such filing.

Item 9.01. Financial Statements and Exhibits.

(d) Exhibits

Exhibit Number Description

99.1Press Release issued on March 3, 2026, announcing financial results of Gran Tierra Energy Inc. for the year ended December 31, 2025.

104Cover Page Interactive Data File - the cover page XBRL tags are embedded within the Inline XBRL document.

SIGNATURE

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.

March 3, 2026GRAN TIERRA ENERGY INC.

By:/s/ Ryan Ellson By: Ryan Ellson Chief Financial Officer and Executive Vice President, Finance

2025
Q4

Q4 2025 Earnings

8-K BUY

Jan 29, 2026 · 100% conf.

AI Prediction BUY

1D

-0.33%

$6.87

5D

+6.70%

$7.35

20D

+7.48%

$7.41

Price: $6.89 Prob +5D: 100% AUC: 1.000
0001104659-26-007569

false 0001273441

0001273441

2026-01-28 2026-01-28

iso4217:USD

xbrli:shares

iso4217:USD

xbrli:shares

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 8-K

CURRENT REPORT

PURSUANT TO SECTION 13 OR 15(D) OF

THE SECURITIES EXCHANGE ACT OF 1934

Date of Report (Date of earliest event reported): January 28, 2026

GRAN TIERRA ENERGY INC.

(Exact Name of Registrant as Specified in its Charter)

Delaware

001-34018

98-0479924

(State or Other Jurisdiction of Incorporation)

(Commission File Number)

(IRS Employer Identification No.)

500 Centre Street S.E.

Calgary, Alberta, Canada

T2G 1A6

(Address of Principal Executive Offices)

(Zip Code)

(403) 265-3221

(Registrant’s Telephone Number, Including Area Code)

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions:

¨ Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)

¨ Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)

¨ Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))

¨ Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))

Securities registered pursuant to Section 12(b) of the Act:

Title of each class Trading Symbol(s) Name of each exchange on which registered

Common Stock, par value $0.001 per share GTE

NYSE American

Toronto Stock Exchange

London Stock Exchange

Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (§230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (§240.12b-2 of this chapter).

Emerging growth company  ¨

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act.  ¨

Item 2.02. Results of Operations and Financial Condition.

On January 28, 2026, Gran Tierra Energy Inc. (the “Company”) issued a press release announcing its 2026 year-end reserves. A copy of the press release is attached hereto as Exhibit 99.1 and incorporated by reference herein in its entirety.

The disclosures set forth in Item 8.01 are incorporated by reference into this Item 2.02.

The information in this Item 2.02 and in Exhibit 99.1 attached to this Current Report on Form 8-K is being furnished and shall not be deemed “filed” for the purposes of Section 18 of the Securities Exchange Act of 1934, as amended (the “Exchange Act”), or otherwise subject to the liabilities of that section, nor shall it be deemed to be incorporated by reference into any filing by the Company under the Securities Act of 1933, as amended, or the Exchange Act, regardless of any general incorporation language contained in such filing.

Item 8.01.Other Events.

The Company is hereby presenting information regarding its oil and natural gas reserves at December 31, 2025 and certain operational updates regarding the fourth quarter and the year ended December 31, 2025.

Reserves Information

Gran Tierra’s 2025 reserves were independently prepared by McDaniel.

See “Glossary” for definitions of industry terms and abbreviations. All dollar amounts are presented in U.S. dollars.

The following table sets forth Gran Tierra’s estimated reserves NAR as of December 31, 2025.

Oil Natural Gas NGL + Condensate Oil Equivalent

Reserves Category (Mbbl) (MMcf) (Mbbl)

(MBOE)

Proved

Total proved developed producing reserves 38,811 77,866 9,213 61,002

Total proved developed non-producing reserves

1,664 2,912 209 2,358

Total proved undeveloped reserves 38,824 38,243 3,061 48,259

Total proved reserves 79,299 119,021 12,483 111,619

Probable

Total probable developed producing reserves 11,182 23,413 2,703 17,787

Total probable developed non-producing reserves

510 4,134 361 1,560

Total probable undeveloped reserves 42,241 121,682 12,136 74,657

Total probable reserves 53,933 149,229 15,200 94,005

Possible

Total possible developed producing reserves 10,205 27,479 3,163 17,948

Total possible developed non-producing reserves

387 1,727 142 817

Total possible undeveloped reserves 27,461 39,664 3,470 37,542

Total possible reserves 38,053 68,870 6,775 56,306

The product prices that were used to determine the future gross revenue for each property reflect adjustments to the benchmark prices for gravity, quality, local conditions and/or distance from market. The average realized prices for reserves in the report are:

Oil (USD/bbl) – Colombia $57.32

Oil (USD/bbl) – Ecuador $63.05

Oil (USD/bbl) – Canada $56.77

Operations Update

The following table sets forth select estimated operational data for Gran Tierra for the year ended December 31, 2025.

Year Ended December 31,

2025 % Change 2024 % C

2025
Q4

Q4 2025 Earnings

8-K BUY

Jan 29, 2026 · 100% conf.

AI Prediction BUY

1D

-0.33%

$6.87

5D

+6.70%

$7.35

20D

+7.48%

$7.41

Price: $6.89 Prob +5D: 100% AUC: 1.000
0001104659-26-007748

false 0001273441

0001273441

2026-01-29 2026-01-29

iso4217:USD

xbrli:shares

iso4217:USD

xbrli:shares

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 8-K

CURRENT REPORT

PURSUANT TO SECTION 13 OR 15(D) OF

THE SECURITIES EXCHANGE ACT OF 1934

Date of Report (Date of earliest event reported): January 29, 2026

GRAN TIERRA ENERGY INC.

(Exact Name of Registrant as Specified in its Charter)

Delaware

001-34018

98-0479924

(State or Other Jurisdiction of Incorporation)

(Commission File Number)

(IRS Employer Identification No.)

500 Centre Street S.E.

Calgary, Alberta, Canada

T2G 1A6

(Address of Principal Executive Offices)

(Zip Code)

(403) 265-3221

(Registrant’s Telephone Number, Including Area Code)

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions:

¨ Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)

¨ Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)

¨ Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))

¨ Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))

Securities registered pursuant to Section 12(b) of the Act:

Title of each class Trading Symbol(s) Name of each exchange on which registered

Common Stock, par value $0.001 per share GTE

NYSE American

Toronto Stock Exchange

London Stock Exchange

Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (§230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (§240.12b-2 of this chapter).

Emerging growth company  ¨

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act.  ¨

Item 2.02.Results of Operations and Financial Condition.

On January 29, 2026, Gran Tierra Energy Inc., a Delaware corporation (the “Company”), issued a press release providing an operations update and certain preliminary unaudited financial data for the year ended December 31, 2025. A copy of the press release is attached hereto as Exhibit 99.1 and incorporated by reference herein in its entirety.

The preliminary estimated unaudited financial and operational data for the year ended December 31, 2025 incorporated by reference into this Item 2.02 are preliminary estimates, unaudited and subject to completion, and reflect the Company’s preliminary expectations of results for the year ended December 31, 2025, based on currently available information and have been prepared by, and are the responsibility of, our management, and reflect management’s estimates based solely upon information available to the Company as of the date of this Current Report on Form 8-K. Management has prepared the preliminary unaudited estimated financial and operational data in good faith on a consistent basis with prior periods. The preliminary estimated unaudited financial and operational data for the year ended December 31, 2025 incorporated by reference into this Item 2.02 are not a comprehensive statement of the Company’s financial results for the year ended December 31, 2025, which have not yet been completed, and have not been audited, reviewed, examined, or compiled by KPMG LLP, the Company’s independent registered public accounting firm. Accordingly, KPMG LLP does not express an opinion or any other form of assurance with respect thereto. The Company’s actual results for the year ended December 31, 2025 will not be available until completion of the Company’s audited financial statements for the year ended December 31, 2025 and may differ materially from these estimates. These preliminary unaudited estimates should not be viewed as a substitute for full financial statements prepared in accordance with U.S. generally accepted accounting principles. The Company undertakes no obligation to update or supplement the information incorporated herein by reference until the Company reports its final financial results for the year ended December 31, 2025. The preliminary estimated financial data represent management estimates that constitute forward-looking statements subject to risks and uncertainties, many of which are not within the Company’s control. See “Cautionary Statement Regarding Forward-looking Statements.” The Company anticipates filing its audited financial statements and related management’s discussion and analysis for the year ended December 31, 2025 on or before March 3, 2026.

The information in this Item 2.01 and in Exhibit 99.1 attached to this report is being furnished and shall not be deemed “filed” for the purposes of Section 18 of the Securities Exchange Act of 19

2025
Q3

Q3 2025 Earnings

8-K

Oct 31, 2025

0001273441-25-000035

gte-20251030false000127344100012734412025-10-302025-10-30

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 8-K

CURRENT REPORT

Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934

Date of Report (Date of earliest event reported): October 30, 2025

GRAN TIERRA ENERGY INC.

(Exact name of Registrant as specified in its charter)

Delaware 98-0479924

(State or other jurisdiction of incorporation) (I.R.S. Employer Identification No.)

Commission file number: 001-34018

500 Centre Street S.E. Calgary, Alberta Canada T2G 1A6 (Address of principal executive offices and zip code)

Registrant's telephone number, including area code: (403) 265-3221

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions (see General Instruction A.2. below):

☐ Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)

☐ Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)

☐ Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))

☐ Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))

Securities registered pursuant to Section 12(b) of the Act:

Title of each class Trading Symbol(s) Name of each exchange on which registered

Common Stock, par value $0.001 per share GTE NYSE American

Toronto Stock Exchange

London Stock Exchange

Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (§230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (§240.12b-2 of this chapter). Emerging growth company ☐

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act.                                      ☐

Item 2.02. Results of Operations and Financial Condition.

On October 30, 2025, Gran Tierra Energy Inc. issued a press release announcing its financial and operating results for the quarter ended September 30, 2025. A copy of the press release is attached hereto as Exhibit 99.1 and incorporated by reference herein in its entirety.

The information in this Item 2.02 and in Exhibit 99.1 attached to this report is being furnished and shall not be deemed “filed” for the purposes of Section 18 of the Securities Exchange Act of 1934, as amended (the “Exchange Act”), or otherwise subject to the liabilities of that section, nor shall it be deemed to be incorporated by reference into any filing by Gran Tierra Energy Inc. under the Securities Act of 1933, as amended, or the Exchange Act, regardless of any general incorporation language contained in such filing.

Item 9.01. Financial Statements and Exhibits.

(d) Exhibits.

Exhibit Number Description

99.1Press Release issued on October 30, 2025, announcing financial and operating results of Gran Tierra Energy Inc. for the quarter ended September 30, 2025.

104Cover Page Interactive Data File - the cover page XBRL tags are embedded within the Inline XBRL document.

SIGNATURE

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.

October 30, 2025GRAN TIERRA ENERGY INC.

/s/ Ryan Ellson By: Ryan Ellson

Executive Vice President and Chief Financial Officer

2025
Q2

Q2 2025 Earnings

8-K

Jul 31, 2025

0001273441-25-000017

gte-20250730false000127344100012734412025-07-302025-07-30

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 8-K

CURRENT REPORT

Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934

Date of Report (Date of earliest event reported): July 30, 2025

GRAN TIERRA ENERGY INC.

(Exact name of Registrant as specified in its charter)

Delaware 98-0479924

(State or other jurisdiction of incorporation) (I.R.S. Employer Identification No.)

Commission file number: 001-34018

500 Centre Street S.E. Calgary, Alberta Canada T2G 1A6 (Address of principal executive offices and zip code)

Registrant's telephone number, including area code: (403) 265-3221

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions (see General Instruction A.2. below):

☐ Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)

☐ Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)

☐ Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))

☐ Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))

Securities registered pursuant to Section 12(b) of the Act:

Title of each class Trading Symbol(s) Name of each exchange on which registered

Common Stock, par value $0.001 per share GTE NYSE American

Toronto Stock Exchange

London Stock Exchange

Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (§230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (§240.12b-2 of this chapter). Emerging growth company ☐

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act.                                      ☐

Item 2.02. Results of Operations and Financial Condition.

On July 30, 2025, Gran Tierra Energy Inc. issued a press release announcing its financial and operating results for the quarter ended June 30, 2025. A copy of the press release is attached hereto as Exhibit 99.1 and incorporated by reference herein in its entirety.

The information in this Item 2.02 and in Exhibit 99.1 attached to this report is being furnished and shall not be deemed “filed” for the purposes of Section 18 of the Securities Exchange Act of 1934, as amended (the “Exchange Act”), or otherwise subject to the liabilities of that section, nor shall it be deemed to be incorporated by reference into any filing by Gran Tierra Energy Inc. under the Securities Act of 1933, as amended, or the Exchange Act, regardless of any general incorporation language contained in such filing.

Item 9.01. Financial Statements and Exhibits.

(d) Exhibits.

Exhibit Number Description

99.1Press Release issued on July 30, 2025, announcing financial and operating results of Gran Tierra Energy Inc. for the quarter ended June 30, 2025.

104Cover Page Interactive Data File - the cover page XBRL tags are embedded within the Inline XBRL document.

SIGNATURE

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.

July 30, 2025GRAN TIERRA ENERGY INC.

/s/ Ryan Ellson By: Ryan Ellson

Executive Vice President and Chief Financial Officer

2025
Q1

Q1 2025 Earnings

8-K

May 2, 2025

0001273441-25-000013

gte-20250501false000127344100012734412025-05-012025-05-01

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 8-K

CURRENT REPORT

Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934

Date of Report (Date of earliest event reported): May 1, 2025

GRAN TIERRA ENERGY INC.

(Exact name of Registrant as specified in its charter)

Delaware 98-0479924

(State or other jurisdiction of incorporation) (I.R.S. Employer Identification No.)

Commission file number: 001-34018

500 Centre Street S.E. Calgary, Alberta Canada T2G 1A6 (Address of principal executive offices and zip code)

Registrant's telephone number, including area code: (403) 265-3221

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions (see General Instruction A.2. below):

☐ Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)

☐ Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)

☐ Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))

☐ Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))

Securities registered pursuant to Section 12(b) of the Act:

Title of each class Trading Symbol(s) Name of each exchange on which registered

Common Stock, par value $0.001 per share GTE NYSE American

Toronto Stock Exchange

London Stock Exchange

Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (§230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (§240.12b-2 of this chapter). Emerging growth company ☐

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act.                                      ☐

Item 2.02. Results of Operations and Financial Condition.

On May 1, 2025, Gran Tierra Energy Inc. issued a press release announcing its financial and operating results for the quarter ended March 31, 2025. A copy of the press release is attached hereto as Exhibit 99.1 and incorporated by reference herein in its entirety.

The information in this Item 2.02 and in Exhibit 99.1 attached to this report is being furnished and shall not be deemed “filed” for the purposes of Section 18 of the Securities Exchange Act of 1934, as amended (the “Exchange Act”), or otherwise subject to the liabilities of that section, nor shall it be deemed to be incorporated by reference into any filing by Gran Tierra Energy Inc. under the Securities Act of 1933, as amended, or the Exchange Act, regardless of any general incorporation language contained in such filing.

Item 9.01. Financial Statements and Exhibits.

(d) Exhibits.

Exhibit Number Description

99.1Press Release issued on May 1, 2025, announcing financial and operating results of Gran Tierra Energy Inc. for the quarter ended March 31, 2025.

104Cover Page Interactive Data File - the cover page XBRL tags are embedded within the Inline XBRL document.

SIGNATURE

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.

May 1, 2025GRAN TIERRA ENERGY INC.

/s/ Ryan Ellson By: Ryan Ellson

Executive Vice President and Chief Financial Officer

2024
Q4

Q4 2024 Earnings

8-K

Feb 24, 2025

0001273441-25-000004

gte-20250224false000127344100012734412025-02-242025-02-24

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 8-K

CURRENT REPORT

Pursuant to Section 13 or 15(d) of the

Securities Exchange Act of 1934

Date of Report (Date of earliest event reported): February 24, 2025

GRAN TIERRA ENERGY INC.

(Exact name of Registrant as specified in its charter)

Delaware98-0479924 (State or other jurisdiction of incorporation)(I.R.S. Employer Identification No.)

Commission file number: 001-34018

500 Centre Street S.E. Calgary, Alberta, Canada T2G 1A6 (Address of principal executive offices and zip code)

Registrant's telephone number, including area code: (403) 265-3221

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions (see General Instruction A.2. below):

☐ Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)

☐ Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)

☐ Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))

☐ Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))

Securities registered pursuant to Section 12(b) of the Act: Title of each class Trading Symbol(s) Name of each exchange on which registered

Common Stock, par value $0.001 per share GTE NYSE American

Toronto Stock Exchange

London Stock Exchange

Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (§230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (§240.12b-2 of this chapter). Emerging growth company ☐

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act.                                      ☐

Item 2.02. Results of Operations and Financial Condition.

On February 24, 2025, Gran Tierra Energy Inc. issued a press release announcing its financial and operating results for the year-end December 31, 2024. A copy of the press release is attached hereto as Exhibit 99.1 and incorporated by reference herein in its entirety.

The information in this Item 2.02 and in Exhibit 99.1 attached to this report is being furnished and shall not be deemed “filed” for the purposes of Section 18 of the Securities Exchange Act of 1934, as amended (the “Exchange Act”), or otherwise subject to the liabilities of that section, nor shall it be deemed to be incorporated by reference into any filing by Gran Tierra Energy Inc. under the Securities Act of 1933, as amended or the Exchange Act, regardless of any general incorporation language contained in such filing.

Item 9.01. Financial Statements and Exhibits.

(d) Exhibits

Exhibit Number Description

99.1Press Release issued on February 24, 2025, announcing financial results of Gran Tierra Energy Inc. for the year ended December 31, 2024.

104Cover Page Interactive Data File - the cover page XBRL tags are embedded within the Inline XBRL document.

SIGNATURE

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.

February 24, 2025GRAN TIERRA ENERGY INC.

By:/s/ Ryan Ellson By: Ryan Ellson Chief Financial Officer and Executive Vice President, Finance

2024
Q4

Q4 2024 Earnings

8-K

Jan 24, 2025

0001104659-25-005727

false 0001273441

0001273441

2025-01-23 2025-01-23

iso4217:USD

xbrli:shares

iso4217:USD

xbrli:shares

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 8-K

CURRENT REPORT

PURSUANT TO SECTION 13 OR 15(D) OF

THE SECURITIES EXCHANGE ACT OF 1934

Date of Report (Date of earliest event reported): January 23, 2025

GRAN TIERRA ENERGY INC.

(Exact Name of Registrant as Specified in its Charter)

Delaware

001-34018

98-0479924

(State or Other Jurisdiction of Incorporation)

(Commission File Number)

(IRS Employer Identification No.)

500 Centre Street S.E.

Calgary, Alberta, Canada T2G 1A6

(Address of Principal Executive Offices)

(Zip Code)

(403) 265-3221

(Registrant’s Telephone Number, Including Area Code)

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions:

¨ Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)

¨ Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)

¨ Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))

¨ Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))

Securities registered pursuant to Section 12(b) of the Act:

Title of each class Trading Symbol(s) Name of each exchange on which

registered

Common Stock, par value $0.001 per share GTE

NYSE American

Toronto Stock Exchange

London Stock Exchange

Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (§230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (§240.12b-2 of this chapter).

Emerging growth company  ¨

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act.  ¨

Item 2.02. Results of Operations and Financial Condition.

On January 23, 2025, Gran Tierra Energy Inc. (the “Company”) issued a press release announcing its 2024 year-end reserves. A copy of the press release is attached hereto as Exhibit 99.1 and incorporated by reference herein in its entirety.

On January 23, 2025, the Company issued a press release announcing its 2024 year-end production and 2025 guidance. A copy of the press release is attached hereto as Exhibit 99.2 and incorporated by reference herein in its entirety.

The information in this Item 2.02 and in Exhibits 99.1 and 99.2 attached to this report is being furnished and shall not be deemed “filed” for the purposes of Section 18 of the Securities Exchange Act of 1934, as amended (the “Exchange Act”), or otherwise subject to the liabilities of that section, nor shall it be deemed to be incorporated by reference into any filing by the Company under the Securities Act of 1933, as amended, or the Exchange Act, regardless of any general incorporation language contained in such filing.

Item 9.01. Financial Statements and Exhibits.

(d) Exhibits

Exhibit No.

Description

99.1

Press Release issued on January 23, 2025.

99.2

Press Release issued on January 23, 2025.

104

Cover Page Interactive Data File - the cover page XBRL tags are embedded within the Inline XBRL document.

SIGNATURE

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.

Dated: January 23, 2025

GRAN TIERRA ENERGY INC.

/s/ Ryan Ellson

By: Ryan Ellson

Executive Vice President and Chief Financial Officer

2024
Q3

Q3 2024 Earnings

8-K

Nov 4, 2024

0001273441-24-000040

gte-20241104false000127344100012734412024-11-042024-11-04

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 8-K

CURRENT REPORT

Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934

Date of Report (Date of earliest event reported): November 4, 2024

GRAN TIERRA ENERGY INC.

(Exact name of Registrant as specified in its charter)

Delaware 98-0479924

(State or other jurisdiction of incorporation) (I.R.S. Employer Identification No.)

Commission file number: 001-34018

500 Centre Street S.E. Calgary, Alberta Canada T2G 1A6 (Address of principal executive offices and zip code)

Registrant's telephone number, including area code: (403) 265-3221

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions (see General Instruction A.2. below):

☐ Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)

☐ Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)

☐ Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))

☐ Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))

Securities registered pursuant to Section 12(b) of the Act:

Title of each class Trading Symbol(s) Name of each exchange on which registered

Common Stock, par value $0.001 per share GTE NYSE American

Toronto Stock Exchange

London Stock Exchange

Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (§230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (§240.12b-2 of this chapter). Emerging growth company ☐

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act.                                      ☐

Item 2.02. Results of Operations and Financial Condition.

On November 4, 2024, Gran Tierra Energy Inc. issued a press release announcing its financial and operating results for the quarter ended September 30, 2024. A copy of the press release is attached hereto as Exhibit 99.1 and incorporated by reference herein in its entirety.

The information in this Item 2.02 and in Exhibit 99.1 attached to this report is being furnished and shall not be deemed “filed” for the purposes of Section 18 of the Securities Exchange Act of 1934, as amended (the “Exchange Act”), or otherwise subject to the liabilities of that section, nor shall it be deemed to be incorporated by reference into any filing by Gran Tierra Energy Inc. under the Securities Act of 1933, as amended, or the Exchange Act, regardless of any general incorporation language contained in such filing.

Item 9.01. Financial Statements and Exhibits.

(d) Exhibits.

Exhibit Number Description

99.1Press Release issued on November 4, 2024, announcing financial and operating results of Gran Tierra Energy Inc. for the quarter ended September 30, 2024.

104Cover Page Interactive Data File - the cover page XBRL tags are embedded within the Inline XBRL document.

SIGNATURE

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.

November 4, 2024GRAN TIERRA ENERGY INC.

/s/ Ryan Ellson By: Ryan Ellson

Executive Vice President and Chief Financial Officer

2024
Q2

Q2 2024 Earnings

8-K

Jul 31, 2024

0001273441-24-000025

gte-20240731false000127344100012734412024-07-312024-07-31

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 8-K

CURRENT REPORT

Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934

Date of Report (Date of earliest event reported): July 31, 2024

GRAN TIERRA ENERGY INC.

(Exact name of Registrant as specified in its charter)

Delaware 98-0479924

(State or other jurisdiction of incorporation) (I.R.S. Employer Identification No.)

Commission file number: 001-34018

500 Centre Street S.E. Calgary, Alberta Canada T2G 1A6 (Address of principal executive offices and zip code)

Registrant's telephone number, including area code: (403) 265-3221

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions (see General Instruction A.2. below):

☐ Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)

☐ Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)

☐ Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))

☐ Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))

Securities registered pursuant to Section 12(b) of the Act:

Title of each class Trading Symbol(s) Name of each exchange on which registered

Common Stock, par value $0.001 per share GTE NYSE American

Toronto Stock Exchange

London Stock Exchange

Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (§230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (§240.12b-2 of this chapter). Emerging growth company ☐

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act.                                      ☐

Item 2.02. Results of Operations and Financial Condition.

On July 31, 2024, Gran Tierra Energy Inc. issued a press release announcing its financial and operating results for the quarter ended June 30, 2024. A copy of the press release is attached hereto as Exhibit 99.1 and incorporated by reference herein in its entirety.

The information in this Item 2.02 and in Exhibit 99.1 attached to this report is being furnished and shall not be deemed “filed” for the purposes of Section 18 of the Securities Exchange Act of 1934, as amended (the “Exchange Act”), or otherwise subject to the liabilities of that section, nor shall it be deemed to be incorporated by reference into any filing by Gran Tierra Energy Inc. under the Securities Act of 1933, as amended, or the Exchange Act, regardless of any general incorporation language contained in such filing.

Item 9.01. Financial Statements and Exhibits.

(d) Exhibits.

Exhibit Number Description

99.1Press Release issued on July 31, 2024, announcing financial and operating results of Gran Tierra Energy Inc. for the quarter ended June 30, 2024.

104Cover Page Interactive Data File - the cover page XBRL tags are embedded within the Inline XBRL document.

SIGNATURE

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.

July 31, 2024GRAN TIERRA ENERGY INC.

/s/ Ryan Ellson By: Ryan Ellson

Executive Vice President and Chief Financial Officer

2024
Q1

Q1 2024 Earnings

8-K

May 2, 2024

0001273441-24-000015

gte-20240501false000127344100012734412024-05-012024-05-01

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 8-K

CURRENT REPORT

Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934

Date of Report (Date of earliest event reported): May 1, 2024

GRAN TIERRA ENERGY INC.

(Exact name of Registrant as specified in its charter)

Delaware 98-0479924

(State or other jurisdiction of incorporation) (I.R.S. Employer Identification No.)

Commission file number: 001-34018

500 Centre Street S.E. Calgary, Alberta Canada T2G 1A6 (Address of principal executive offices and zip code)

Registrant's telephone number, including area code: (403) 265-3221

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions (see General Instruction A.2. below):

☐ Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)

☐ Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)

☐ Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))

☐ Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))

Securities registered pursuant to Section 12(b) of the Act:

Title of each class Trading Symbol(s) Name of each exchange on which registered

Common Stock, par value $0.001 per share GTE NYSE American

Toronto Stock Exchange

London Stock Exchange

Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (§230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (§240.12b-2 of this chapter). Emerging growth company ☐

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act.                                      ☐

Item 2.02. Results of Operations and Financial Condition.

On May 1, 2024, Gran Tierra Energy Inc. issued a press release announcing its financial and operating results for the quarter ended March 31, 2024. A copy of the press release is attached hereto as Exhibit 99.1 and incorporated by reference herein in its entirety.

The information in this Item 2.02 and in Exhibit 99.1 attached to this report is being furnished and shall not be deemed “filed” for the purposes of Section 18 of the Securities Exchange Act of 1934, as amended (the “Exchange Act”), or otherwise subject to the liabilities of that section, nor shall it be deemed to be incorporated by reference into any filing by Gran Tierra Energy Inc. under the Securities Act of 1933, as amended, or the Exchange Act, regardless of any general incorporation language contained in such filing.

Item 9.01. Financial Statements and Exhibits.

(d) Exhibits.

Exhibit Number Description

99.1Press Release issued on May 1, 2024, announcing financial and operating results of Gran Tierra Energy Inc. for the quarter ended March 31, 2024.

104Cover Page Interactive Data File - the cover page XBRL tags are embedded within the Inline XBRL document.

SIGNATURE

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.

May 1, 2024GRAN TIERRA ENERGY INC.

/s/ Ryan Ellson By: Ryan Ellson

Executive Vice President and Chief Financial Officer

2023
Q4

Q4 2023 Earnings

8-K

Feb 20, 2024

0001273441-24-000008

gte-20240220false000127344100012734412024-02-202024-02-20

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 8-K

CURRENT REPORT

Pursuant to Section 13 or 15(d) of the

Securities Exchange Act of 1934

Date of Report (Date of earliest event reported): February 20, 2024

GRAN TIERRA ENERGY INC.

(Exact name of Registrant as specified in its charter)

Delaware98-0479924 (State or other jurisdiction of incorporation)(I.R.S. Employer Identification No.)

Commission file number: 001-34018

500 Centre Street S.E. Calgary, Alberta, Canada T2G 1A6 (Address of principal executive offices and zip code)

Registrant's telephone number, including area code: (403) 265-3221

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions (see General Instruction A.2. below):

☐ Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)

☐ Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)

☐ Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))

☐ Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))

Securities registered pursuant to Section 12(b) of the Act: Title of each class Trading Symbol(s) Name of each exchange on which registered

Common Stock, par value $0.001 per share GTE NYSE American

Toronto Stock Exchange

London Stock Exchange

Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (§230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (§240.12b-2 of this chapter). Emerging growth company ☐

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act.                                      ☐

Item 2.02. Results of Operations and Financial Condition.

On February 20, 2024, Gran Tierra Energy Inc. issued a press release announcing its financial and operating results for the year-end December 31, 2023. A copy of the press release is attached hereto as Exhibit 99.1 and incorporated by reference herein in its entirety.

The information in this Item 2.02 and in Exhibit 99.1 attached to this report is being furnished and shall not be deemed “filed” for the purposes of Section 18 of the Securities Exchange Act of 1934, as amended (the “Exchange Act”), or otherwise subject to the liabilities of that section, nor shall it be deemed to be incorporated by reference into any filing by Gran Tierra Energy Inc. under the Securities Act of 1933, as amended or the Exchange Act, regardless of any general incorporation language contained in such filing.

Item 9.01. Financial Statements and Exhibits.

(d) Exhibits

Exhibit Number Description

99.1Press Release issued on February 20, 2024, announcing financial results of Gran Tierra Energy Inc. for the year ended December 31, 2023.

104Cover Page Interactive Data File - the cover page XBRL tags are embedded within the Inline XBRL document.

SIGNATURE

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.

February 20, 2024GRAN TIERRA ENERGY INC.

By:/s/ Ryan Ellson By: Ryan Ellson Chief Financial Officer and Executive Vice President, Finance

2023
Q4

Q4 2023 Earnings

8-K

Feb 1, 2024

0001104659-24-009143

false 0001273441

0001273441

2024-02-01 2024-02-01

iso4217:USD

xbrli:shares

iso4217:USD

xbrli:shares

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 8-K

CURRENT REPORT

PURSUANT TO SECTION 13 OR 15(D) OF

THE SECURITIES EXCHANGE ACT OF 1934

Date of Report (Date of earliest event reported): February 1, 2024

GRAN TIERRA ENERGY INC.

(Exact Name of Registrant as Specified in its Charter)

Delaware

001-34018

98-0479924

(State or Other Jurisdiction of Incorporation)

(Commission File Number)

(IRS Employer Identification No.)

500 Centre Street S.E.

Calgary, Alberta, Canada

T2G 1A6

(Address of Principal Executive Offices)

(Zip Code)

(403) 265-3221

(Registrant’s Telephone Number, Including Area Code)

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions:

¨ Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)

¨ Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)

¨ Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))

¨ Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))

Securities registered pursuant to Section 12(b) of the Act:

Title of each class Trading Symbol(s) Name of each exchange on which registered

Common Stock, par value $0.001 per share GTE

NYSE American

Toronto Stock Exchange

London Stock Exchange

Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (§230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (§240.12b-2 of this chapter).

Emerging growth company  ¨

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act.  ¨

Item 2.02.Results of Operations and Financial Condition.

The disclosures set forth in Item 8.01 are incorporated by reference into this Item 2.02.

Item 8.01.Other Events.

Gran Tierra Energy Inc., a Delaware corporation (“Gran Tierra” or the “Company”) is hereby presenting information regarding its oil and natural gas reserves at December 31, 2023 and certain operational updates regarding the fourth quarter and the year ended December 31, 2023.

Reserves Information

Gran Tierra’s 2023 reserves were independently prepared by McDaniel & Associates Consultants Ltd. (“McDaniel”).

See “Glossary” for definitions of industry terms and abbreviations. All dollar amounts are presented in U.S. dollars.

The following table sets forth Gran Tierra’s estimated reserves NAR as of December 31, 2023.

Oil Natural Gas Oil and Natural Gas

Reserves Category

(Mbbl)

(MMcf)

(MBOE)

Proved

Total proved developed reserves 39,599 — 39,599

Total proved undeveloped reserves 34,697 — 34,697

Total proved reserves 74,296 — 74,296

Probable

Total probable developed reserves 12,139 — 12,139

Total probable undeveloped reserves 34,109 — 34,109

Total probable reserves 46,248 — 46,248

Possible

Total possible developed reserves 11,362 — 11,362

Total possible undeveloped reserves 37,144 — 37,144

Total possible reserves 48,506 — 48,506

The product prices that were used to determine the future gross revenue for each property reflect adjustments to the benchmark prices for gravity, quality, local conditions and/or distance from market. The average realized prices for reserves in the report are:

Oil (USD/bbl) – Colombia $69.91

Oil (USD/bbl) – Ecuador $77.44

1

Operations Update

The following table sets forth select estimated operational data for Gran Tierra for the year ended December 31, 2023.

Year Ended December 31,

2023 % Change 2022 % Change 2021

SEC Compliant Reserves, NAR (MMBOE)

Estimated proved oil and gas reserves 74 12 66 (1) 67

Estimated probable oil and gas reserves 46 28 36 — 36

Estimated possible oil and gas reserves 49 26 39 26 31

Average Consolidated Daily Volumes (BOPD)

Working interest production before royalties 32,647 6 30,746 16 26,507

Royalties (6,548) (6) (6,931) 41 (4,919)

Production NAR 26,099 10 23,815 10 21,588

(Increase) decrease in inventory (152) (28) (119) (1,290) 10

Sales(1) 25,947 9 23,696 10 21,598

(1)Sales volumes represent production NAR adjusted for inventory changes.

The net present value (“NPV”) discounted at 10% (“NPV10”) after tax of Gran Tierra’s estimated proved oil and gas reserves is as follows:

(US$ thousands) Colombia Ecuador Total Company

December 31, 2023

Net present value after tax $1,843,425 $ 64,987 $ 1,908,412

10% discount (516,451) (22,924) (539,375)

Net present value at 10% discount after tax $1,326,974 $42,063 $1,369,037

Gran Tierra provides the following additional financial and production informatio

2023
Q4

Q4 2023 Earnings

8-K

Jan 23, 2024

0001104659-24-005934

false 0001273441

0001273441

2024-01-23 2024-01-23

iso4217:USD

xbrli:shares

iso4217:USD

xbrli:shares

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 8-K

CURRENT REPORT

PURSUANT TO SECTION 13 OR 15(D) OF

THE SECURITIES EXCHANGE ACT OF 1934

Date of Report (Date of earliest event reported): January 23, 2024

GRAN TIERRA ENERGY INC.

(Exact Name of Registrant as Specified in its Charter)

Delaware

001-34018

98-0479924

(State or Other Jurisdiction of Incorporation)

(Commission File Number)

(IRS Employer Identification No.)

Suite 900, 520-3 Avenue SW

Calgary, Alberta, Canada

T2P 0R3

(Address of Principal Executive Offices)

(Zip Code)

(403) 265-3221

(Registrant’s Telephone Number, Including Area Code)

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions:

¨ Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)

¨ Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)

¨ Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))

¨ Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))

Securities registered pursuant to Section 12(b) of the Act:

Title of each class Trading Symbol(s) Name of each exchange on which

registered

Common Stock, par value $0.001 per share GTE

NYSE American

Toronto Stock Exchange

London Stock Exchange

Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (§230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (§240.12b-2 of this chapter).

Emerging growth company  ¨

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act.  ¨

Item 2.02. Results of Operations and Financial Condition.

On January 23, 2024, Gran Tierra Energy Inc. (the “Company”) issued a press release announcing its 2023 year-end reserves. A copy of the press release is attached hereto as Exhibit 99.1 and incorporated by reference herein in its entirety.

On January 23, 2024, the Company issued a press release announcing its 2023 year-end production and 2024 guidance. A copy of the press release is attached hereto as Exhibit 99.2 and incorporated by reference herein in its entirety.

The information in this Item 2.02 and in Exhibits 99.1 and 99.2 attached to this report is being furnished and shall not be deemed “filed” for the purposes of Section 18 of the Securities Exchange Act of 1934, as amended (the “Exchange Act”), or otherwise subject to the liabilities of that section, nor shall it be deemed to be incorporated by reference into any filing by the Company under the Securities Act of 1933, as amended, or the Exchange Act, regardless of any general incorporation language contained in such filing.

Item 9.01. Financial Statements and Exhibits.

(d) Exhibits

Exhibit No.

Description

99.1

Press Release issued on January 23, 2024.

99.2

Press Release issued on January 23, 2024.

104

Cover Page Interactive Data File - the cover page XBRL tags are embedded within the Inline XBRL document.

SIGNATURE

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.

Dated: January 23, 2024

GRAN TIERRA ENERGY INC.

/s/ Ryan Ellson

By:  Ryan Ellson

Executive Vice President and Chief Financial Officer

2023
Q3

Q3 2023 Earnings

8-K

Nov 1, 2023

0001273441-23-000025

gte-20231031false000127344100012734412023-10-312023-10-31

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 8-K

CURRENT REPORT

Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934

Date of Report (Date of earliest event reported): October 31, 2023

GRAN TIERRA ENERGY INC.

(Exact name of Registrant as specified in its charter)

Delaware 98-0479924

(State or other jurisdiction of incorporation) (I.R.S. Employer Identification No.)

Commission file number: 001-34018

500 Centre Street S.E. Calgary, Alberta Canada T2G 1A6 (Address of principal executive offices and zip code)

Registrant's telephone number, including area code: (403) 265-3221

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions (see General Instruction A.2. below):

☐ Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)

☐ Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)

☐ Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))

☐ Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))

Securities registered pursuant to Section 12(b) of the Act:

Title of each class Trading Symbol(s) Name of each exchange on which registered

Common Stock, par value $0.001 per share GTE NYSE American

Toronto Stock Exchange

London Stock Exchange

Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (§230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (§240.12b-2 of this chapter). Emerging growth company ☐

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act.                                      ☐

Item 2.02. Results of Operations and Financial Condition.

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. A copy of the press release is attached hereto as Exhibit 99.1 and incorporated by reference herein in its entirety.

The information in this Item 2.02 and in Exhibit 99.1 attached to this report is being furnished and shall not be deemed “filed” for the purposes of Section 18 of the Securities Exchange Act of 1934, as amended (the “Exchange Act”), or otherwise subject to the liabilities of that section, nor shall it be deemed to be incorporated by reference into any filing by Gran Tierra Energy Inc. under the Securities Act of 1933, as amended, or the Exchange Act, regardless of any general incorporation language contained in such filing.

Item 9.01. Financial Statements and Exhibits.

(d) Exhibits.

Exhibit Number Description

99.1Press Release issued on October 31, 2023, announcing financial and operating results of Gran Tierra Energy Inc. for the quarter ended September 30, 2023.

104Cover Page Interactive Data File - the cover page XBRL tags are embedded within the Inline XBRL document.

SIGNATURE

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.

October 31, 2023GRAN TIERRA ENERGY INC.

/s/ Ryan Ellson By: Ryan Ellson

Executive Vice President and Chief Financial Officer

2023
Q2

Q2 2023 Earnings

8-K

Aug 1, 2023

0001273441-23-000021

gte-20230801false000127344100012734412023-08-012023-08-01

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 8-K

CURRENT REPORT

Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934

Date of Report (Date of earliest event reported): August 1, 2023

GRAN TIERRA ENERGY INC.

(Exact name of Registrant as specified in its charter)

Delaware 98-0479924

(State or other jurisdiction of incorporation) (I.R.S. Employer Identification No.)

Commission file number: 001-34018

500 Centre Street S.E. Calgary, Alberta Canada T2G 1A6 (Address of principal executive offices and zip code)

Registrant's telephone number, including area code: (403) 265-3221

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions (see General Instruction A.2. below):

☐ Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)

☐ Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)

☐ Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))

☐ Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))

Securities registered pursuant to Section 12(b) of the Act:

Title of each class Trading Symbol(s) Name of each exchange on which registered

Common Stock, par value $0.01 per share GTE NYSE American

Toronto Stock Exchange

London Stock Exchange

Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (§230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (§240.12b-2 of this chapter). Emerging growth company ☐

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act.                                      ☐

Item 2.02. Results of Operations and Financial Condition.

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. A copy of the press release is attached hereto as Exhibit 99.1 and incorporated by reference herein in its entirety.

The information in this Item 2.02 and in Exhibit 99.1 attached to this report is being furnished and shall not be deemed “filed” for the purposes of Section 18 of the Securities Exchange Act of 1934, as amended (the “Exchange Act”), or otherwise subject to the liabilities of that section, nor shall it be deemed to be incorporated by reference into any filing by Gran Tierra Energy Inc. under the Securities Act of 1933, as amended, or the Exchange Act, regardless of any general incorporation language contained in such filing.

Item 9.01. Financial Statements and Exhibits.

(d) Exhibits.

Exhibit Number Description

99.1Press Release issued on August 1, 2023, announcing financial and operating results of Gran Tierra Energy Inc. for the quarter ended June 30, 2023.

104Cover Page Interactive Data File - the cover page XBRL tags are embedded within the Inline XBRL document.

SIGNATURE

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.

August 1, 2023GRAN TIERRA ENERGY INC.

/s/ Ryan Ellson By: Ryan Ellson

Executive Vice President and Chief Financial Officer

2023
Q2

Q2 2023 Earnings

8-K

Jul 13, 2023

0001104659-23-080418

0001273441 false

0001273441

2023-07-12 2023-07-12

iso4217:USD

xbrli:shares

iso4217:USD

xbrli:shares

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 8-K

CURRENT REPORT

PURSUANT TO SECTION 13 OR 15(D) OF

THE SECURITIES EXCHANGE ACT OF 1934

Date of Report (Date of earliest event reported): July 12, 2023

GRAN TIERRA ENERGY INC.

(Exact Name of Registrant as Specified in its Charter)

Delaware

001-34018

98-0479924

(State or Other Jurisdiction of Incorporation)

(Commission File Number)

(IRS Employer Identification No.)

500 Centre Street S.E.

Calgary, Alberta, Canada

T2G 1A6

(Address of Principal Executive Offices)

(Zip Code)

(403) 265-3221

(Registrant’s Telephone Number, Including Area Code)

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions:

¨ Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)

¨ Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)

¨ Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))

¨ Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))

Securities registered pursuant to Section 12(b) of the Act:

Title of each class Trading Symbol(s) Name of each exchange on which

registered

Common Stock, par value $0.001 per share GTE

NYSE American

Toronto Stock Exchange

London Stock Exchange

Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (§230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (§240.12b-2 of this chapter).

Emerging growth company  ¨

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act.  ¨

Item 2.02. Results of Operations and Financial Condition.

On July 12, 2023, Gran Tierra Energy Inc. issued a press release providing an update regarding operational results for the second quarter 2023. A copy of the press release is attached hereto as Exhibit 99.1 and incorporated by reference herein in its entirety.

The information in this Item 2.02 and in Exhibit 99.1 attached to this report is being furnished and shall not be deemed “filed” for the purposes of Section 18 of the Securities Exchange Act of 1934, as amended (the “Exchange Act”), or otherwise subject to the liabilities of that section, nor shall it be deemed to be incorporated by reference into any filing by Gran Tierra Energy Inc. under the Securities Act of 1933, as amended, or the Exchange Act, regardless of any general incorporation language contained in such filing.

Item 9.01. Financial Statements and Exhibits.

(d) Exhibits

Exhibit No.

Description

99.1

Press Release issued on July 12, 2023.

104

Cover Page Interactive Data File - the cover page XBRL tags are embedded within the Inline XBRL document.

SIGNATURE

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.

Dated: July 12, 2023

GRAN TIERRA ENERGY INC.

/s/ Ryan Ellson

By: Ryan Ellson

Executive Vice President and Chief Financial Officer

2023
Q1

Q1 2023 Earnings

8-K

May 3, 2023

0001273441-23-000014

gte-20230502false000127344100012734412023-05-022023-05-02

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 8-K

CURRENT REPORT

Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934

Date of Report (Date of earliest event reported): May 2, 2023

GRAN TIERRA ENERGY INC.

(Exact name of Registrant as specified in its charter)

Delaware 98-0479924

(State or other jurisdiction of incorporation) (I.R.S. Employer Identification No.)

Commission file number: 001-34018

500 Centre Street S.E. Calgary, Alberta Canada T2G 1A6 (Address of principal executive offices and zip code)

Registrant's telephone number, including area code: (403) 265-3221

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions (see General Instruction A.2. below):

☐ Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)

☐ Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)

☐ Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))

☐ Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))

Securities registered pursuant to Section 12(b) of the Act:

Title of each class Trading Symbol(s) Name of each exchange on which registered

Common Stock, par value $0.001 per share GTE NYSE American

Toronto Stock Exchange

London Stock Exchange

Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (§230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (§240.12b-2 of this chapter). Emerging growth company ☐

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act.                                      ☐

Item 2.02. Results of Operations and Financial Condition.

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. A copy of the press release is attached hereto as Exhibit 99.1 and incorporated by reference herein in its entirety.

The information in this Item 2.02 and in Exhibit 99.1 attached to this report is being furnished and shall not be deemed “filed” for the purposes of Section 18 of the Securities Exchange Act of 1934, as amended (the “Exchange Act”), or otherwise subject to the liabilities of that section, nor shall it be deemed to be incorporated by reference into any filing by Gran Tierra Energy Inc. under the Securities Act of 1933, as amended, or the Exchange Act, regardless of any general incorporation language contained in such filing.

Item 9.01. Financial Statements and Exhibits.

(d) Exhibits.

Exhibit Number Description

99.1Press Release issued on May 2, 2023, announcing financial and operating results of Gran Tierra Energy Inc. for the quarter ended March 31, 2023.

104Cover Page Interactive Data File - the cover page XBRL tags are embedded within the Inline XBRL document.

SIGNATURE

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.

May 2, 2023GRAN TIERRA ENERGY INC.

/s/ Ryan Ellson By: Ryan Ellson

Executive Vice President and Chief Financial Officer

2023
Q1

Q1 2023 Earnings

8-K

Apr 6, 2023

0001104659-23-042689

0001273441 false

0001273441

2023-04-04 2023-04-04

iso4217:USD

xbrli:shares

iso4217:USD

xbrli:shares

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 8-K

CURRENT REPORT

Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934

Date of Report (Date of earliest event reported): April 4, 2023

GRAN TIERRA ENERGY INC.

(Exact name of Registrant as specified in its charter)

Delaware 98-0479924

(State or other jurisdiction of incorporation) (I.R.S. Employer Identification No.)

Commission file number:  001-34018

500 Centre Street S.E.

Calgary, Alberta Canada T2G 1A6

(Address of principal executive offices and zip code)

Registrant's telephone number, including area code: (403) 265-3221

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions (see General Instruction A.2. below):

¨ Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)

¨ Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)

¨ Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))

¨ Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))

Securities registered pursuant to Section 12(b) of the Act:

Title of each class Trading Symbol(s) Name of each exchange on which registered

Common Stock, par value $0.001 per share GTE NYSE American

Toronto Stock Exchange

London Stock Exchange

Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (§230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (§240.12b-2 of this chapter).

Emerging growth company ¨

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. ¨

Item 2.02. Results of Operations and Financial Condition.

On April 4, 2023, the Company issued a press release providing an update regarding operational and financial results. A copy of the press release is attached hereto as Exhibit 99.1 and incorporated by reference herein in its entirety.

The information in this Item 2.02 and in Exhibit 99.1 attached to this report is being furnished and shall not be deemed “filed” for the purposes of Section 18 of the Securities Exchange Act of 1934, as amended (the “Exchange Act”), or otherwise subject to the liabilities of that section, nor shall it be deemed to be incorporated by reference into any filing by the Company under the Securities Act of 1933, as amended, or the Exchange Act, regardless of any general incorporation language contained in such filing.

Item 9.01. Financial Statements and Exhibits.

(d) Exhibits.

Exhibit

Number

Description

99.1

Press Release issued on April 4, 2023, providing operational and financial update of Gran Tierra Energy Inc.

104

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SIGNATURE

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.

April 6, 2023

GRAN TIERRA ENERGY INC.

/s/ Ryan Ellson

By: Ryan Ellson

Executive Vice President and Chief Financial Officer

2022
Q4

Q4 2022 Earnings

8-K

Feb 22, 2023

0001273441-23-000007

gte-20230221false000127344100012734412023-02-212023-02-21

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 8-K

CURRENT REPORT

Pursuant to Section 13 or 15(d) of the

Securities Exchange Act of 1934

Date of Report (Date of earliest event reported): February 21, 2023

GRAN TIERRA ENERGY INC.

(Exact name of Registrant as specified in its charter)

Delaware98-0479924 (State or other jurisdiction of incorporation)(I.R.S. Employer Identification No.)

Commission file number: 001-34018

500 Centre Street S.E. Calgary, Alberta, Canada T2G 1A6 (Address of principal executive offices and zip code)

Registrant's telephone number, including area code: (403) 265-3221

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions (see General Instruction A.2. below):

☐ Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)

☐ Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)

☐ Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))

☐ Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))

Securities registered pursuant to Section 12(b) of the Act: Title of each class Trading Symbol(s) Name of each exchange on which registered

Common Stock, par value $0.001 per share GTE NYSE American

Toronto Stock Exchange

London Stock Exchange

Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (§230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (§240.12b-2 of this chapter). Emerging growth company ☐

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act.                                      ☐

Item 2.02. Results of Operations and Financial Condition.

On February 21, 2023, Gran Tierra Energy Inc. issued a press release announcing its financial and operating results for the year-end December 31, 2022. A copy of the press release is attached hereto as Exhibit 99.1 and incorporated by reference herein in its entirety.

The information in this Item 2.02 and in Exhibit 99.1 attached to this report is being furnished and shall not be deemed “filed” for the purposes of Section 18 of the Securities Exchange Act of 1934, as amended (the “Exchange Act”), or otherwise subject to the liabilities of that section, nor shall it be deemed to be incorporated by reference into any filing by Gran Tierra Energy Inc. under the Securities Act of 1933, as amended or the Exchange Act, regardless of any general incorporation language contained in such filing.

Item 9.01. Financial Statements and Exhibits.

(d) Exhibits

Exhibit Number Description

99.1Press Release issued on February 21, 2023, announcing financial results of Gran Tierra Energy Inc. for the year ended December 31, 2022.

104Cover Page Interactive Data File - the cover page XBRL tags are embedded within the Inline XBRL document.

SIGNATURE

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.

February 21, 2023GRAN TIERRA ENERGY INC.

By:/s/ Ryan Ellson By: Ryan Ellson Chief Financial Officer and Executive Vice President, Finance

About Gran Tierra Energy Inc. (GTE) Earnings

This page provides Gran Tierra Energy Inc. (GTE) earnings call transcripts from SEC 8-K filings along with AI-powered predictions for post-earnings price movements. Our machine learning models analyze historical earnings data, pre-earnings price patterns, volume changes, and volatility to predict 1-day, 5-day, and 20-day returns after each earnings release.

Earnings transcripts are sourced directly from SEC EDGAR filings. Predictions are generated using gradient boosting models trained on GTE's historical earnings reactions. All predicted returns are shown as percentages, and predicted prices are calculated from the closing price at the time of prediction. Past performance does not guarantee future results.

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