# EDGAR Filing Document

**Accession Number:** 0001273441
**File Stem:** 0001273441-23-000005
**Filing Date:** 2023-2
**Character Count:** 407654
**Document Hash:** dbefc53893988035a6b3a594a2e4acf8
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0001273441-23-000005.hdr.sgml**: 20230222

**ACCESSION NUMBER**: 0001273441-23-000005

**CONFORMED SUBMISSION TYPE**: 10-K

**PUBLIC DOCUMENT COUNT**: 101

**CONFORMED PERIOD OF REPORT**: 20221231

**FILED AS OF DATE**: 20230222

**DATE AS OF CHANGE**: 20230221

**FILER**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** GRAN TIERRA ENERGY INC.
- **CENTRAL INDEX KEY:** 0001273441
- **STANDARD INDUSTRIAL CLASSIFICATION:** CRUDE PETROLEUM & NATURAL GAS [1311]
- **IRS NUMBER:** 000000000
- **STATE OF INCORPORATION:** DE
- **FISCAL YEAR END:** 1231

**FILING VALUES:**
- **FORM TYPE:** 10-K
- **SEC ACT:** 1934 Act
- **SEC FILE NUMBER:** 001-34018
- **FILM NUMBER:** 23650007

**BUSINESS ADDRESS:**
- **STREET 1:** 500 CENTRE STREET SE
- **CITY:** CALGARY
- **STATE:** A0
- **ZIP:** T2G 1A6
- **BUSINESS PHONE:** (403) 265-3221

**MAIL ADDRESS:**
- **STREET 1:** 500 CENTRE STREET SE
- **CITY:** CALGARY
- **STATE:** A0
- **ZIP:** T2G 1A6

**FORMER COMPANY:**
- **FORMER CONFORMED NAME:** GRAN TIERRA ENERGY, INC.
- **DATE OF NAME CHANGE:** 20051130

**FORMER COMPANY:**
- **FORMER CONFORMED NAME:** GOLDSTRIKE INC
- **DATE OF NAME CHANGE:** 20040113

**FORMER COMPANY:**
- **FORMER CONFORMED NAME:** GOLKSTRIKE INC
- **DATE OF NAME CHANGE:** 20031216

?xml version="1.0" ? gte-20221231

**UNITED STATES SECURITIES AND EXCHANGE COMMISSION**

**Washington, D.C. 20549**

**FORM 10-K** 

(Mark One)

☒ **ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934**

For the fiscal year ended December 31, 2022

or

☐ **TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934**

For the transition period from __________ to __________

**Commission file number <u>001-34018</u>**

**<u>GRAN TIERRA ENERGY INC.</u>**

(Exact name of registrant as specified in its charter)

---

| | | | | |
|:---|:---|:---|:---|:---|
| **Delaware** | **Delaware** | **Delaware** | | **98-0479924** |
| (State or other jurisdiction of incorporation or organization) | (State or other jurisdiction of incorporation or organization) | (State or other jurisdiction of incorporation or organization) | | (I.R.S. Employer Identification No.) |
| **500 Centre Street S.E.** | **500 Centre Street S.E.** | **500 Centre Street S.E.** | **500 Centre Street S.E.** | **500 Centre Street S.E.** |
| | **Calgary,** | **Alberta** | **Canada** | **T2G 1A6** |
| (Address of principal executive offices, including zip code) | (Address of principal executive offices, including zip code) | (Address of principal executive offices, including zip code) | (Address of principal executive offices, including zip code) | (Address of principal executive offices, including zip code) |

---

**(403) 265-3221** 

(Registrant's telephone number, including area code)

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 |
| Common Stock, par value $0.001 per share | GTE | Toronto Stock Exchange |
| Common Stock, par value $0.001 per share | GTE | London Stock Exchange |

---

Securities Registered Pursuant to Section 12(g) of the Act: **None** 

Indicate by check mark if the registrant is a well-known seasoned issuer, as defined in Rule 405 of the Securities Act.

Yes ☐ No ☒

Indicate by check mark if the registrant is not required to file reports pursuant to Section 13 or Section 15(d) of the Act.

Yes ☐ No ☒

Indicate by check mark whether the registrant (1) has filed all reports required to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 during the preceding 12 months (or for such shorter period that the registrant was required to file such reports), and (2) has been subject to such filing requirements for the past 90 days. &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Yes ☒ No ☐

Indicate by check mark whether the registrant submitted electronically every Interactive Data File required to be submitted pursuant to Rule 405 of Regulation S-T (§ 232.405 of this chapter) during the preceding 12 months (or for such shorter period that the registrant was required to submit such files).

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Yes ☒ No ☐

Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, or a smaller reporting company or an emerging growth company. See the definitions of "large accelerated filer," "accelerated filer", "smaller reporting company" and "emerging growth company" in Rule 12b-2 of the Exchange Act.

---

| | | | |
|:---|:---|:---|:---|
| Large accelerated filer | ☐ | Accelerated filer | ☒ |
| Non-accelerated filer | ☐ | Smaller reporting company | ☐ |
| | | 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. &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; &nbsp;&nbsp;&nbsp;&nbsp; ☐&nbsp;&nbsp;&nbsp;&nbsp;

Indicate by check mark whether the registrant has filed a report on and attestation to its management's assessment of the

effectiveness of its internal control over financial reporting under Section 404(b) of the Sarbanes-Oxley Act (15 U.S.C. 7262(b)) by the registered public accounting firm that prepared or issued its audit report. &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; ☒

If securities are registered pursuant to Section 12(b) of the Act, indicate by check mark whether the financial statements of the registrant included in the filing reflect the correction of an error to previously issued financial statements. ☐

Indicate by check mark whether any of those error corrections are restatements that required a recovery analysis of incentive-based compensation received by any of the registrant's executive officers during the relevant recovery period pursuant

to §240.10D-1(b). &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; ☐

Indicate by check mark whether the registrant is a shell company (as defined in Rule 12b-2 of the Act). &nbsp;&nbsp;&nbsp;&nbsp; Yes ☐ No ☒

The aggregate market value of the voting and non-voting common equity held by non-affiliates as of June 30, 2022, the last business day of the registrant's most recently completed second fiscal quarter, was approximately $414.4 million.

On February 16, 2023, 346,151,157 shares of the registrant's Common Stock with $0.001 par value were outstanding.

**DOCUMENTS INCORPORATED BY REFERENCE** 

The information required by Part III of this report, to the extent not set forth herein, is incorporated by reference from the registrant's definitive proxy statement relating to the 2023 annual meeting of stockholders, which definitive proxy statement will be filed with the Securities and Exchange Commission within 120 days after December 31, 2022.

Auditor Name: KPMG LLP&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Auditor Location: Calgary, Canada&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Auditor Firm ID: 85

------

 **Gran Tierra Energy Inc.**

**Annual Report on Form 10-K**

**Year Ended December 31, 2022**

**Table of Contents**

---

| | | |
|:---|:---|:---|
| | | **Page** |
| **PART I** | | |
| Items 1 and 2. | Business and Properties | <u>[5](#ia449746dc91e4ef89fd8058c8f3d2183_16)</u> |
| Item 1A. | Risk Factors | <u>[18](#ia449746dc91e4ef89fd8058c8f3d2183_97)</u> |
| Item 1B. | Unresolved Staff Comments | <u>[26](#ia449746dc91e4ef89fd8058c8f3d2183_100)</u> |
| Item 3. | Legal Proceedings | <u>[26](#ia449746dc91e4ef89fd8058c8f3d2183_103)</u> |
| Item 4. | Mine Safety Disclosures | <u>[26](#ia449746dc91e4ef89fd8058c8f3d2183_106)</u> |
| **PART II** |  |  |
| Item 5. | Market for Registrant's Common Equity, Related Stockholder Matters and Issuer Purchases of Equity Securities | <u>[28](#ia449746dc91e4ef89fd8058c8f3d2183_115)</u> |
| Item 6. | [Reserved] |  |
| Item 7. | Management's Discussion and Analysis of Financial Condition and Results of Operations | <u>[29](#ia449746dc91e4ef89fd8058c8f3d2183_127)</u> |
| Item 7A. | Quantitative and Qualitative Disclosures About Market Risk | <u>[55](#ia449746dc91e4ef89fd8058c8f3d2183_163)</u> |
| Item 8. | Financial Statements and Supplementary Data | <u>[56](#ia449746dc91e4ef89fd8058c8f3d2183_166)</u> |
| Item 9. | Changes in and Disagreements with Accountants on Accounting and Financial Disclosure | <u>[86](#ia449746dc91e4ef89fd8058c8f3d2183_268)</u> |
| Item 9A. | Controls and Procedures | <u>[86](#ia449746dc91e4ef89fd8058c8f3d2183_271)</u> |
| Item 9B. | Other Information | <u>[88](#ia449746dc91e4ef89fd8058c8f3d2183_277)</u> |
| Item 9C. | Disclosure Regarding Foreign Jurisdictions that Prevent Inspections | <u>[88](#ia449746dc91e4ef89fd8058c8f3d2183_2446)</u> |
| **PART III** |  |  |
| Item 10. | Directors, Executive Officers and Corporate Governance | <u>[88](#ia449746dc91e4ef89fd8058c8f3d2183_283)</u> |
| Item 11. | Executive Compensation | <u>[89](#ia449746dc91e4ef89fd8058c8f3d2183_286)</u> |
| Item 12. | Security Ownership of Certain Beneficial Owners and Management and Related Stockholder Matters | <u>[89](#ia449746dc91e4ef89fd8058c8f3d2183_289)</u> |
| Item 13. | Certain Relationships and Related Transactions, and Director Independence | <u>[89](#ia449746dc91e4ef89fd8058c8f3d2183_2453)</u> |
| Item 14. | Principal Accounting Fees and Services | <u>[90](#ia449746dc91e4ef89fd8058c8f3d2183_292)</u> |
| **PART IV** |  |  |
| Item 15. | Exhibits, Financial Statement Schedules | <u>[90](#ia449746dc91e4ef89fd8058c8f3d2183_298)</u> |
| Item 16. | Form 10-K Summary | <u>[93](#ia449746dc91e4ef89fd8058c8f3d2183_301)</u> |
| SIGNATURES | SIGNATURES | <u>[94](#ia449746dc91e4ef89fd8058c8f3d2183_304)</u> |

---

------

**CAUTIONARY LANGUAGE REGARDING FORWARD-LOOKING STATEMENTS**

*This Annual Report on Form 10-K includes forward-looking statements within the meaning of Section 27A of the Securities Act of 1933, as amended (the "Securities Act"), and Section 21E of the Securities Exchange Act of 1934, as amended (the "Exchange Act"). All statements other than statements of historical facts included in this Annual Report on Form 10-K regarding our financial position, estimated quantities and net present values of reserves, business strategy, plans and objectives of our management for future operations, covenant compliance, capital spending plans and benefits of the changes in our capital program or expenditures, our liquidity and financial condition, the impacts of the novel coronavirus (COVID-19) pandemic and those statements preceded by, followed by or that otherwise include the words "believe", "expect", "anticipate", "intend", "estimate", "project", "target", "goal", "plan", "budget", "objective", "should", or similar expressions or variations on these expressions are forward-looking statements. We can give no assurances that the assumptions upon which the forward-looking statements are based will prove to be correct or that, even if correct, intervening circumstances will not occur to cause actual results to be different than expected. Because forward-looking statements are subject to risks and uncertainties, actual results may differ materially from those expressed or implied by the forward-looking statements. There are a number of risks, uncertainties and other important factors that could cause our actual results to differ materially from the forward-looking statements, including, but not limited to, our operations are located in South America and unexpected problems can arise due to guerilla activity, strikes, local blockades or protests; technical difficulties and operational difficulties may arise which impact the production, transport or sale of our products; other disruptions to local operations; global health events (including the ongoing COVID-19 pandemic); global and regional changes in the demand, supply, prices, differentials or other market conditions affecting oil and gas, including inflation and changes resulting from a global health crisis, the Russian invasion of Ukraine, or from the imposition or lifting of crude oil production quotas or other actions that might be imposed by OPEC, such as its recent decision to cut production and other producing countries and resulting company or third-party actions in response to such changes; changes in commodity prices, including volatility or a prolonged decline in these prices relative to historical or future expected levels; the risk that current global economic and credit conditions may impact oil prices and oil consumption more than we currently predict. which could cause further modification of our strategy and capital spending program; prices and markets for oil and natural gas are unpredictable and volatile; the effect of hedges; the accuracy of productive capacity of any particular field; geographic, political and weather conditions can impact the production, transport or sale of our products; our ability to execute its business plan and realize expected benefits from current initiatives; the risk that unexpected delays and difficulties in developing currently owned properties may occur; the ability to replace reserves and production and develop and manage reserves on an economically viable basis; the accuracy of testing and production results and seismic data, pricing and cost estimates (including with respect to commodity pricing and exchange rates); the risk profile of planned exploration activities; the effects of drilling down-dip; the effects of waterflood and multi-stage fracture stimulation operations; the extent and effect of delivery disruptions, equipment performance and costs; actions by third parties; the timely receipt of regulatory or other required approvals for our operating activities; the failure of exploratory drilling to result in commercial wells; unexpected delays due to the limited availability of drilling equipment and personnel; volatility or declines in the trading price of our common stock or bonds; the risk that we do not receive the anticipated benefits of government programs, including government tax refunds; our ability comply with financial covenants in its credit agreement and indentures and make borrowings under any credit agreement; and those factors set out in Part I, Item 1A "Risk Factors" in this Annual Report on Form 10-K. The unprecedented nature of the current pandemic and downturn in the worldwide economy and oil and gas industry makes, including the unpredictable nature of the resurgence of cases and governmental responses, make it more difficult to predict the accuracy of the forward-looking statements. The information included herein is given as of the filing date of this Annual Report on Form 10-K with the Securities and Exchange Commission ("SEC") and, except as otherwise required by the federal securities laws, we disclaim any obligation or undertaking to publicly release any updates or revisions to, or to withdraw, any forward-looking statement contained in this Annual Report on Form 10-K to reflect any change in our expectations with regard thereto or any change in events, conditions or circumstances on which any forward-looking statement is based.*

------

**GLOSSARY OF OIL AND GAS TERMS**

In this report, the abbreviations set forth below have the following meanings:

---

| | | | |
|:---|:---|:---|:---|
| bbl | barrel | Mcf | thousand cubic feet |
| Mbbl | thousand barrels | MMcf | million cubic feet |
| MMbbl | million barrels | Bcf | billion cubic feet |
| BOE | barrels of oil equivalent | bopd | barrels of oil per day |
| MMBOE | million barrels of oil equivalent | NAR | net after royalty |
| BOEPD | barrels of oil equivalent per day | BOPD | barrels of oil per day |

---

Sales volumes represent production NAR adjusted for inventory changes and losses. Our oil and gas reserves are reported NAR. Our production is also reported NAR, except as otherwise specifically noted as *"*working interest production before royalties*".* Gas volumes are converted to BOE at the rate of 6 Mcf of gas per bbl of oil, based upon the approximate relative energy content of gas and oil. The rate is not necessarily indicative of the relationship between oil and gas prices. BOEs may be misleading, particularly if used in isolation. A BOE conversion ratio of 6 Mcf:1 bbl is based on an energy equivalency conversion method primarily applicable at the burner tip and does not represent a value equivalency at the wellhead.

Below are explanations of some commonly used terms in the oil and gas business and in this report.

*Developed acres.* The number of acres that are allocated or assignable to producing wells or wells capable of production.

*Development well.* A well drilled within the proved area of an oil or gas reservoir to the depth of a stratigraphic horizon known to be productive.

*Dry hole.* Exploratory or development well that does not produce oil or gas in commercial quantities.

*Exploitation activities.* The process of the recovery of fluids from reservoirs and drilling and development of oil and gas reserves.

*Exploration well.* An exploration well is a well drilled to find a new field or new reservoir in a field previously found to be productive of oil or gas in another reservoir. Generally, an exploratory well is any well that is not a development well, an extension well, a service well, or a stratigraphic test well.

*Field.* An area consisting of a single reservoir or multiple reservoirs all grouped on or related to the same individual geological structural feature and/or stratigraphic condition.

*Gross acres or gross wells.* The total acres or wells in which we own a working interest.

*Net acres or net wells.* The sum of the fractional working interests we own in gross acres or gross wells expressed as whole numbers and fractions of whole numbers.

*Possible reserves.* Possible reserves are those additional reserves that are less certain to be recovered than probable reserves. The SEC provides a complete definition of possible reserves in Rule 4-10(a)(17) of Regulation S-X.

*Probable reserves.* Probable reserves are those additional reserves that are less certain to be recovered than proved reserves but that, together with proved reserves, are as likely as not to be recovered. The SEC provides a complete definition of probable reserves in Rule 4-10(a)(18) of Regulation S-X.

*Productive well.* A well that is found to be capable of producing hydrocarbons in sufficient quantities such that proceeds from the sale of such production exceed production expenses and taxes.

*Proved developed reserves.* In general, reserves that can be expected to be recovered from existing wells with existing equipment and operating methods. The SEC provides a complete definition of developed oil and gas reserves in Rule 4-10(a)(6) of Regulation S-X.

*Proved reserves.* Those quantities of oil and natural gas, which, by analysis of geoscience and engineering data, can be estimated with reasonable certainty to be economically producible from a given date forward, from known reservoirs and under

------

existing economic conditions, operating methods and government regulations prior to the time at which contracts providing the right to operate expire, unless evidence indicates that renewal is reasonably certain, regardless of whether deterministic or probabilistic methods are used for the estimation. The project to extract the hydrocarbons must have commenced or the operator must be reasonably certain that it will commence the project within a reasonable time.

(i)The area of the reservoir considered as proved includes:

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(A)The area identified by drilling and limited by fluid contacts, if any, and

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(B)Adjacent undrilled portions of the reservoir that can, with reasonable certainty, be judged to be continuous with it and to contain economically producible oil or gas on the basis of available geoscience and engineering data.

(ii)In the absence of data on fluid contacts, proved quantities in a reservoir are limited by the lowest known hydrocarbons ("LKH") as seen in a well penetration unless geoscience, engineering, or performance data and reliable technology establishes a lower contact with reasonable certainty.

(iii)Where direct observation from well penetrations has defined a highest known oil ("HKO") elevation and the potential exists for an associated gas cap, proved oil reserves may be assigned in the structurally higher portions of the reservoir only if geoscience, engineering, or performance data and reliable technology establish the higher contact with reasonable certainty.

(iv)Reserves which can be produced economically through application of improved recovery techniques (including, but not limited to, fluid injection) are included in the proved classification when:

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(A)Successful testing by a pilot project in an area of the reservoir with properties no more favorable than in the reservoir as a whole, the operation of an installed program in the reservoir or an analogous reservoir, or other evidence using reliable technology establishes the reasonable certainty of the engineering analysis on which the project or program was based; and

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(B)The project has been approved for development by all necessary parties and entities, including governmental entities.

(v)Existing economic conditions include prices and costs at which economic producibility from a reservoir is to be determined. The price shall be the average price during the 12-month period prior to the ending date of the period covered by the report, determined as an unweighted arithmetic average of the first-day-of-the month price for each month within such period, unless prices are defined by contractual arrangements, excluding escalations based upon future conditions.

*Proved undeveloped reserves.* In general, reserves that are expected to be recovered from new wells on undrilled acreage or from existing wells where a relatively major expenditure is required for recompletion. The SEC provides a complete definition of undeveloped oil and gas reserves in Rule 4-10(a)(31) of Regulation S-X.

*Reserves.* Reserves are estimated remaining quantities of oil and gas and related substances anticipated to be economically producible, as of a given date, by application of development projects to known accumulations. In addition, there must exist, or there must be a reasonable expectation that there will exist, the legal right to produce or a revenue interest in the production, installed means of delivering oil and gas or related substances to market, and all permits and financing required to implement the project.

*Undeveloped acreage.* Lease acreage on which wells have not been drilled or completed to a point that would permit the production of economic quantities of oil and gas regardless of whether such acreage contains proved reserves.

*Working interest.* The operating interest that gives the owner the right to drill, produce and conduct operating activities on the property and a share of production and requires the owner to pay a share of the costs of drilling and production operations.

**PART I**

**Items 1 and 2. *Business and Properties***

**General**

Gran Tierra Energy Inc., together with its subsidiaries ("Gran Tierra", "the Company", "us", "our", or "we"), is a company focused on international oil and gas exploration and production with assets currently in Colombia and Ecuador. Our Colombian properties represented 96% of our proved reserves NAR at December 31, 2022. For the year ended December 31, 2022, 100% (2021 - 100%) of our revenue was generated in Colombia.

We were incorporated under the laws of the State of Nevada in June 2008 and changed our state of incorporation to the State of Delaware in October 2016.

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All dollar ($) amounts referred to in this Annual Report on Form 10-K are United States (U.S.) dollars, unless otherwise indicated.

***2022 Operational Highlights***

During the year ended December 31, 2022, we drilled 34 (20 development, eight water injectors and six exploration) wells and incurred capital expenditures of $236.6 million, the majority of which were incurred in Colombia.

All development and water injector wells were drilled in Colombia, of which 14 development and all water injectors were drilled in Midas Block and six development wells in Chaza Block. As at December 31, 2022, all development wells drilled during the year were producing.

Of the exploration wells drilled, four were in Colombia (two in Midas, one in Chaza and one in Alea 1848-A Blocks) and two in Ecuador (one in the Chanangue and one in Charapa Blocks). As at December 31, 2022 four of the exploration wells were producing and two were dry.

**2023 Outlook**

Our Colombian development operation is expected to represent 95% of our production and approximately 70% of our 2023 capital budget, with the remainder allocated to exploration activities.

The table below shows the break-down of our 2023 capital program:

---

| | | |
|:---|:---|:---|
| | **Number of Wells<br>(Gross and Net)** | **2023 Capital Budget**<br>**($ million)** |
| &nbsp;&nbsp;Development - Colombia | 18 - 23 | 150 - 170 |
| &nbsp;&nbsp;Exploration - Colombia and Ecuador | 4 - 6 | 60 - 80 |
|  | 22 - 29 | 210 - 250 |

---

Our base capital program for 2023 is $210 million to $250 million for exploration and development activities. Based on the mid-point of the 2023 guidance, the capital budget is forecasted to be approximately 70% directed to the development and 30% to exploration activities. Approximately 15% of the development activities included in the 2023 capital program are expected to be directed to facilities.

We expect our 2023 capital program to be fully funded by cash flows from operations. Funding this program from cash flow from operations relies in part on Brent oil prices being at least $60 per bbl for 2023.

**Business Strategy**

We are an international exploration and production company focused on hydrocarbon development in proven, under-explored conventional basins which have access to established infrastructure and competitive fiscal regimes. Our mandate is to develop high-value resource opportunities to deliver top-quartile returns. We intend to continue to high-grade our portfolio, with a continued focus on operational excellence, safety, and stakeholder returns. The senior management team has a proven track record in developing technically difficult reservoirs, enhanced oil recovery, and operating in remote locations in demanding jurisdictions. We aim to have a meaningful and sustainable impact through social investments within the communities we operate. Our "Beyond Compliance Policy" focuses on our commitments to environmental, social, and governance excellence.

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**Oil and Gas Properties - Colombia and Ecuador**

![gte-20221231_g1.jpg](gte-20221231_g1.jpg)

As of December 31, 2022, excluding blocks subject to relinquishment, we had interests in 22 blocks in Colombia, three blocks in Ecuador, and are the operator of 24 of these blocks.

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**Exploration Blocks & Commitments**

The following table provides a summary of our exploration commitments for certain blocks as of December 31, 2022:

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| | | | |
|:---|:---|:---|:---|
| **Basin** | **Block** | **Current Phase** | **Remaining Commitments, Current Phase** |
| **Colombia** | **Colombia** | **Colombia** | **Colombia** |
| Putumayo | Alea<br>1848-A | N/A\*\* | evaluation program |
| Putumayo | PUT-1 | 2\* | two exploration wells |
| Putumayo | PUT-4 | 1\* | one exploration well |
| Putumayo | PUT-7 | 2 | two exploration wells |
| Putumayo | PUT-10 | 1\* | 73 km 2D seismic, two exploration wells |
| Putumayo | PUT-31 | 1\* | 202 km 2D seismic, one exploration well |
| Putumayo | NBM | N/A\*\* | two exploration wells |
| Llanos | LLA-1 | 1\* | 98 km<sup>2</sup> 3D seismic, one exploration well |
| Llanos | LLA-22 | 1 & 2\* | 85 km<sup>2</sup> 3D seismic, one exploration well (45% working interest) |
| Llanos | LLA-70 | 1\* | 163 km<sup>2</sup> 3D seismic, one exploration well |
| Llanos | LLA-85 | 1 | one exploration well |
| MMV | VMM-24 | 1 | 109 km<sup>2</sup> 3D seismic, 100 km 2D seismic reprocessing, 100 km aerogeophysics, 100 km<sup>2</sup> remote sensing, 80 km<sup>2</sup> surface geochemistry, one exploration well |
| **Ecuador** | **Ecuador** | **Ecuador** | **Ecuador** |
| Oriente | Charapa | 1 | 50 km 2D seismic, six exploration wells |
| Oriente | Chanangue | 1 | four exploration wells |
| Oriente | Iguana | 1 | two exploration wells |

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<sup>\*</sup> As of December 31, 2022, exploration has been suspended due to licensing restrictions, security issues or social reasons

<sup>\*\*</sup> As of December 31, 2022, exploration commitments in the exploration block are not subject to phasing.

**Royalties**

Colombian royalties are regulated under Colombia Law 756 of 2002, as modified by Law 1530 of 2012. All discoveries made subsequent to the enactment of Law 756 of 2002 have the sliding scale royalty described below. Discoveries made before the enactment of Law 756 of 2002 have a royalty of 20% and in the case of such discoveries under association contracts reverted to the national government, an additional 12% applies for a total royalty of 32%.

The Agencia Nacional de Hidrocarburos (National Hydrocarbons Agency) ("ANH") contracts have royalties that are based on a sliding scale described in Law 756 of 2002. These royalties work on an individual oil field basis starting with a base royalty rate of 8% for gross production of less than 5,000 bopd, increasing in a linear fashion from 8% to 20% for gross production between 5,000 and 125,000 bopd and is fixed at 20% for gross production between 125,000 and 400,000 bopd. For gross production between 400,000 and 600,000 bopd the rate increases in a linear fashion from 20% to 25%. For gross production in excess of 600,000 bopd the royalty rate is fixed at 25%. The Santana and Nancy-Burdine-Maxine Blocks have a fixed rate for existing production of 32% and 20%, respectively. New discoveries and incremental production are subject to sliding scale royalties duly approved by the ANH. In addition to the sliding scale royalty, there are additional x-factor economic rights of 1% for Llanos-22, Putumayo-4, Putumayo-7, Putumayo-21 and VMM-24; 2% for Llanos-85; 5% for Putumayo-1; 12% for

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Putumayo-31; 31% for Llanos-1 and Llanos -70; and 0.77% for Gaitas if WTI is under $30 per bbl, increasing from 0.77% to 1.16% for WTI between $30 per bbl and $100 per bbl and is fixed at 1.16% for WTI over $100 per bbl.

For gas fields, the royalty is based on an individual gas field basis starting with a base royalty rate of 6.4% for gross production of less than 28.5 MMcf of gas per day. The royalty increases in a linear fashion from 6.4% to 16% for gross production between 28.5 MMcf of gas per day and 712.5 MMcf of gas per day and is stable at 16% for gross production between 712.5 to 2,280 MMcf of gas per day, and then increases in a linear fashion from 16% to 20% for gross production between 2,280 to 3,420 MMcf of gas per day. For gross production in excess of 3,420 MMcf of gas per day the royalty rate is fixed at 20%.

Additional high price rights ("HPR") are applicable to exploration and production contracts signed under the new ANH oil regulatory regime in 2004 and onwards when cumulative gross production (net of royalty) from an Exploitation Area is greater than 5 MMbbls of oil and WTI reference price exceeds the trigger price defined in the contract. The HPR is calculated using the associated production multiplied by the Q factor, which is calculated as follows:

Q factor = (WTI price - Base Price<sup>(1)</sup>)/WTI Price \* 30%

<sup>(1)</sup> Base Price is determined annually by the ANH, based on a formula defined in the contract. For 2022 and 2021, the base price was set as follows:

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| | | |
|:---|:---|:---|
| | **Year Ended December 31,** | **Year Ended December 31,** |
| | **2022** | **2021** |
| **Quality (Oil API)** | <sup>(1)</sup>**Base Price ($/bbl)** | <sup>(1)</sup>**Base Price ($/bbl)** |
| < 10 <sup>o</sup>  | Nil | Nil |
| 10<sup>o</sup> to 15<sup>o</sup> | 58.67 | 58.18 |
| 15<sup>o</sup> to 22<sup>o</sup>  | 41.07 | 40.73 |
| 22<sup>o</sup> to 29<sup>o</sup>  | 39.60 | 39.27 |
| > 29<sup>o</sup> | 38.12 | 37.80 |

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At December 31, 2022, HPR was applicable to our production from the Costayaco and Moqueta Exploitation Areas in the Chaza Block and the Acordionero Exploitation Area in the Midas Block including the recently added Gaitas field.

In addition to these government royalties and rights, our original interests in the Guayuyaco and Chaza Blocks acquired on our entry into Colombia in 2006 are subject to a third party royalty. The additional interests in Guayuyaco and Chaza that we acquired on the acquisition of Solana in 2008 are not subject to this third party royalty. The overriding royalty rights start with a 2% rate on working interest production less government royalties. For new commercial fields discovered within 10 years of the agreement date and after a prescribed threshold is reached, Crosby Capital, LLC ("Crosby") reserves the right to convert the overriding royalty rights to a net profit interest ("NPI"). This NPI ranges from 7.5% to 10% of working interest production less sliding scale government royalties, as described above, and operating and overhead costs. No adjustment is made for the HPR. On certain pre-existing fields, Crosby does not have the right to convert its overriding royalty rights to an NPI. In addition, there are conditional overriding royalty rights that apply only to the pre-existing fields. Currently, we are subject to a 10% NPI on 50% of our working interest production from the Costayaco and Moqueta fields in the Chaza Block and 35% of our working interest production from the Juanambu field in the Guayuyaco Block and overriding royalties on our working interest production from the Guayuyaco field in the Guayuyaco Block.

The Putumayo-7 and Putumayo-1 Blocks are also subject to a third party royalty in addition to the government royalties and rights. Pursuant to the terms of the agreement by which the interests in the Putumayo-7 Block were acquired, a 10% royalty on production from the Putumayo-7 Block is payable to a third party. The terms of the royalty allow for transportation costs, marketing and handling fees, government royalties (including royalties payable to the ANH pursuant to Section 39 of the contract for the Putumayo-7 Block - the "Rights Due to High Prices") and taxes, other than taxes measured by the income of any party, and other than value-added tax ("VAT") or any equivalent, to be paid in cash or kind to the Government of Colombia (or any federal, state, regional or local government agency) and ANH, and a 1% 'X' factor payment to be deducted from production revenue prior to the royalty being paid to a third party. Pursuant to the terms of the agreement by which the interests in the Putumayo-1 Block were acquired, a 3% royalty on production from the Putumayo-1 Block is payable to a third party. The terms of the royalty do not allow for any costs, royalties, and taxes to be deducted from production revenue.

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We currently hold Participation Sharing Contracts ("PSC") for the three Blocks (Charapa, Chanangue and Iguana) in the Oriente Basin in Ecuador. Unlike traditional PSCs, these contracts don't include cost oil or royalties. Instead, the entire production is placed into a profit-sharing pool that is split between the Company and the government based on percentage derived from a biddable price component and a production component. The biddable price component is a sliding scale that is based on the Oriente oil price raging from $30 per bbl to $120 per bbl, with the Company's production share varying between 87.5% and 40%, respectively. The company's share in production would only drop below 50% if the Oriente oil prices exceed $100 per bbl. The production component is a tier-based mechanic increasing from 0% to 6% based on the PSC's daily production. For the year ended December 31, 2022, the share of production retained by the government of Ecuador was recorded as royalties in-kind.

**Administrative Facilities** 

Our principal executive office is located in Calgary, Alberta, Canada. The Calgary office lease will expire on November 30, 2028. Office leases in Colombia and Ecuador will expire on August 31, 2023, and June 30, 2025, respectively.

**Estimated Reserves**

Our 2022 reserves were independently prepared by McDaniel & Associates ("McDaniel"). McDaniel was established in 1955 as an independent Canadian consulting firm and has been providing oil and gas reserves evaluation services to the world's petroleum industry for the past 60 years. They have internationally recognized expertise in reserves evaluations, resource assessments, geological studies, and acquisition and disposition advisory services. McDaniel's office is located in Calgary, Canada. The technical person primarily responsible for the preparation of our reserves estimates at McDaniel meets the requirements regarding qualifications, independence, objectivity, and confidentiality set forth in the Standards Pertaining to the Estimating and Auditing of Oil and Gas Reserves Information promulgated by the Society of Petroleum Engineers.

The primary internal technical person in charge of overseeing the preparation of our reserve estimates is the Vice President, Asset Management. He has a Bachelor of Geological Engineering, graduating with Great Distinction, and a Masters of Chemical Engineering (petroleum). He is responsible for our engineering activities, including reserves reporting, asset evaluation, reservoir management, and field development. He has over 30 years of experience in the oil and gas industry with extensive experience in reservoir management, production, and operations.

We have developed internal controls for estimating and evaluating reserves. Our internal controls over reserve estimates include: 100% of our reserves are evaluated by an independent reservoir engineering firm, at least annually; and review controls are followed, including an independent internal review of assumptions used in the reserve estimates and presentation of the results of this internal review to our reserves committee. Calculations and data are reviewed at several levels of the Company to ensure consistent and appropriate standards and procedures. Our policies are applied by all staff involved in generating and reporting reserve estimates including geological, engineering and finance personnel.

The process of estimating oil and gas reserves is complex and requires significant judgment, as discussed in Item 1A "Risk Factors". The reserve estimation process requires us to use significant decisions and assumptions in the evaluation of available geological, geophysical, engineering, and economic data for each property. Therefore, the accuracy of the reserve estimate is dependent on the quality of the data, the accuracy of the assumptions based on the data, and the interpretations and judgment related to the data.

Proved reserves are reserves which, by analysis of geoscience and engineering data, can be estimated with reasonable certainty to be economically producible from a given date forward from known reservoirs under existing economic conditions, operating methods, and government regulations prior to the time at which contracts providing the right to operate expires, unless evidence indicates that renewal is reasonably certain. The term "reasonable certainty" implies a high degree of confidence that the quantities of oil or natural gas actually recovered will equal or exceed the estimate. To achieve reasonable certainty, we and the independent reserve engineers employed technologies that have been demonstrated to yield results with consistency and repeatability. Estimates of proved reserves are generated through the integration of relevant geological, engineering, and production data, utilizing technologies that have been demonstrated in the field to yield repeatable and consistent results as defined in the SEC regulations. Data used in these integrated assessments included information obtained directly from the subsurface through wellbores, such as well logs, reservoir core samples, fluid samples, static and dynamic pressure information, production test data, and surveillance and performance information. The data utilized also included subsurface information obtained through indirect measurements, such as seismic data. The tools used to interpret the data included proprietary and commercially available seismic processing software and commercially available reservoir modeling and simulation software. Reservoir parameters from analogous reservoirs were used to increase the quality of and confidence in the reserves estimates when available. The method or combination of methods used to estimate the reserves of each reservoir was based on the unique

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circumstances of each reservoir and the dataset available at the time of the estimate. Probable reserves are reserves that are less certain to be recovered than proved reserves but which, together with proved reserves, are as likely as not to be recovered. Estimates of probable reserves which may potentially be recoverable through additional drilling or recovery techniques are by nature more uncertain than estimates of proved reserves and accordingly are subject to substantially greater risk of not actually being realized by us. The probable reserves that have been assigned as of December 31, 2022, were based on both the greater percentage of recovery of the hydrocarbons in place than assumed for proved reserves, as well as the areas of a reservoir adjacent to proved reserves where data control or interpretations of available data are less certain.

Possible reserves are reserves that are less certain to be recovered than probable reserves. Estimates of possible reserves are also inherently imprecise. Estimates of probable and possible reserves are also continually subject to revisions based on production history, results of additional exploration and development, price changes, and other factors. The possible reserves that have been assigned as of December 31, 2022, were based on both the greater percentage of recovery of the hydrocarbons in place than assumed for probable reserves as well as to areas of a reservoir adjacent to probable reserves where data control or interpretations of available data are less certain.

The following table sets forth our estimated reserves NAR as of December 31, 2022:

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| | | | |
|:---|:---|:---|:---|
|<br>**Reserves Category** | **Oil**<br>**(Mbbl)** | **Natural Gas**<br>**(MMcf)** | **Oil and Natural Gas**<br>**(MBOE)** |
| **Proved** | | | |
| Total proved developed reserves | 40360 | 858 | 40503 |
| Total proved undeveloped reserves | 24907 | 588 | 25005 |
| Total proved reserves<sup>(2)</sup> | 65267 | 1446 | 65508 |
| **Probable** <sup>(1)</sup> |  |  |  |
| Total probable developed reserves | 11241 | 58 | 11251 |
| Total probable undeveloped reserves | 24379 | 271 | 24424 |
| Total probable reserves <sup>(3)</sup> | 35620 | 329 | 35675 |
| **Possible** <sup>(1)</sup> |  |  |  |
| Total possible developed reserves | 11818 | 71 | 11830 |
| Total possible undeveloped reserves <sup>(4)</sup> | 27307 | 264 | 27351 |
| Total possible reserves | 39125 | 335 | 39181 |

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<sup>(1)</sup> Estimates of probable and possible reserves are more uncertain than proved reserves, but have not been adjusted for risk due to that uncertainty. Accordingly, estimates of probable and possible reserves are not comparable and have not been, or should not be, summed arithmetically with each other or with estimates of proved reserves.

<sup>(2)</sup> Includes proved developed oil reserves of 0.7 MMbbl and proved undeveloped oil reserves of 2.1 MMbbl related to Ecuador.

<sup>(3)</sup> Includes probable developed oil reserves of 0.2 MMbbl and probable undeveloped oil reserves of 4.3 MMbbl related to Ecuador.

<sup>(4)</sup> Includes possible developed oil reserves of 0.2 MMbbl and possible undeveloped oil reserves of 5.8 MMbbl related to Ecuador.

**Product Prices Used in Reserves Estimates**

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:

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| | |
|:---|:---|
| Oil ($/bbl) - Colombia | $86.16 |
| Natural Gas ($/Mcf) - Colombia | $3.67 |
| Oil ($/bbl) - Ecuador | $91.53 |
| ICE Brent - average of the first day of each month price for the 12-month period | $97.98 |

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These prices should not be interpreted as a prediction of future prices. We do not represent that this data is the fair value of our oil and gas properties or a fair estimate of the present value of cash flows to be obtained from their development and production.

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**Proved Undeveloped Reserves**

At December 31, 2022, we had total proved undeveloped reserves NAR of 25.0 MMBOE (December 31, 2021 - 24.8 MMBOE), which were 92% in Colombia, with the remainder in Ecuador (December 31, 2021 – 98% in Colombia with the remainder in Ecuador). Approximately 49%, 12% and 13% for a total of 74% of proved undeveloped reserves are located in our Acordionero, Costayaco and Moqueta fields, respectively, in Colombia. None of our proved undeveloped reserves at December 31, 2022, have remained undeveloped for five years or more since initial disclosure as proved reserves, and we have adopted a development plan which indicates that the proved undeveloped reserves are scheduled to be drilled within five years of initial disclosure as proved reserves.

Changes in proved undeveloped reserves during the year ended December 31, 2022 are shown in the table below:

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| | |
|:---|:---|
| | **Total Company - Oil Equivalent**<br>**(MMBOE)** |
| Balance, December 31, 2021 | 24.8 |
| Converted to proved producing | (4.5) |
| Technical revisions | (0.3) |
| Extensions and discoveries | 5.0 |
| Balance, December 31, 2022 | 25.0 |

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Changes in proved undeveloped reserves during the year ended December 31, 2022 shown in the table above primarily resulted from the following significant factors:

***Converted to Proved Producing.*** In 2022, we converted 4.5 MMBOE, or 18% of 2021 proved undeveloped reserves to developed status (2.3 MMBOE in Acordionero, 1.4 MMBOE in Costayaco and 0.8 MMBOE in Moqueta). In 2022, the conversion of proved producing volumes was a result of capital expenditures of $52.6 million in Colombia associated with drilling 13 wells in Midas Block and six in Chaza Block.

***Technical and Economic Revisions.*** During the year ended December 31, 2022, we revised down 0.3 MMBOE of proved undeveloped reserves in Colombia comprised of 0.2 MMBOE related to halting the planned drilling of an undeveloped location in the Vonu field and 0.1 MMBOE related to lower forecasted conversion volumes from the undeveloped pool in Ecuador Blocks.

***Extensions and Discoveries.*** We added 5.0 MMBOE to proved undeveloped reserves during the year ended December 31, 2022, of which 3.3 MMBOE were in Colombia and 1.7 MMBOE in Ecuador. In Colombia, we had 2.4 and 0.5 MMBOE of extensions in Acordionero and Costayaco fields, respectively, with the remainder 0.4 MMBOE discoveries in Alea-1848 Block. In Ecuador, we had 1.4 MMBOE and 0.3 MMBOE of extensions in Chanangue and Charapa Blocks, respectively.

**Production, Revenue and Price History**

Certain information concerning production, prices, revenues, and operating expenses for the years ended December 31, 2022, 2021, and 2020 is set forth in Item 7 "Management's Discussion and Analysis of Financial Condition and Results of Operations" and in the "Supplementary Data (Unaudited)" provided following our Financial Statements in Item 8, which information is incorporated by reference here.

The following table presents NAR oil production, average sales prices, and operating expenses per NAR oil production from our major fields Acordionero, Costayaco, Moqueta, Cohembi and total for all our properties for the three years ended December 31, 2022, 2021, and 2020, respectively:

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| | | | | | |
|:---|:---|:---|:---|:---|:---|
| | **Acordionero** <sup>(1)</sup> | **Costayaco** <sup>(1)</sup> | **Moqueta** <sup>(1)</sup> | **Cohembi** <sup>(1)</sup> | **Total for all**<br>&nbsp;&nbsp;&nbsp;&nbsp;**properties** <sup>(2)</sup> |
| **Year Ended December 31, 2022** | | | | | |
| Oil production NAR bbl | **4491574** | **1621073** | **542796** | **1105451** | **8692689** |
| Average sales price of oil per bbl | $**83.65** | $**81.85** | $**80.38** | $**80.87** | $**81.84** |
| Operating expenses of oil per bbl <sup>(3)</sup> | $**15.07** | $**18.30** | $**24.10** | $**25.10** | $**19.85** |
| **Year Ended December 31, 2021** |  |  |  |  |  |
| Oil production NAR bbl | 4183773 | 1435434 | 605926 | 797196 | 7879794 |
| Average sales price of oil per bbl | $62.17 | $59.93 | $58.80 | $55.01 | $60.12 |
| Operating expenses of oil per bbl <sup>(3)(4)</sup> | $13.35 | $20.12 | $24.91 | $20.14 | $18.70 |
| **Year Ended December 31, 2020** |  |  |  |  |  |
| Oil production NAR bbl | 3612338 | 1773723 | 792011 | 438799 | 7346200 |
| Average sales price of oil per bbl | $32.45 | $32.07 | $31.52 | $32.32 | $32.38 |
| Operating expenses of oil per bbl <sup>(3)(4)</sup> | $12.53 | $17.99 | $18.09 | $16.04 | $16.67 |

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<sup>(1)</sup> 100% of product sales were oil

<sup>(2)</sup> Includes de minimis natural gas production from non-core properties from Colombia of 9,682 Mcf (1,614 boe), 119,046 Mcf (19,841 boe)

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;and 214,719 Mcf (35,787 boe) for each of the years ended December 31, 2022, 2021, and 2020, respectively

<sup>(3)</sup> Operating expenses include operating and transportation expenses

<sup>(4)</sup> Covid-19 costs per bbl which were presented separately for the years ended December 31, 2021 and 2020 were re-classified back to operating and transportation costs to conform with December 31, 2022 presentation

We prepared the estimate of a standardized measure of proved reserves in accordance with the Financial Accounting Standards Board ("FASB") Accounting Standards Codification 932, "Extractive Activities – Oil and Gas."

**Drilling Activities**

The following table summarizes the results of our exploration and development drilling activity for the past three years. Wells labeled as "In Progress" for a year were in progress as of December 31, 2022, 2021, or 2020. This information should not be considered indicative of future performance, nor should it be assumed that there was any correlation between the number of productive wells drilled and the oil and gas reserves generated thereby or the costs to Gran Tierra of productive wells compared to the costs of dry holes.

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| | | | |
|:---|:---|:---|:---|
| | **2022** | **2021** | **2020** |
| | **Gross and Net** | **Gross and Net** | **Gross and Net** |
| **Colombia** |  |  |  |
| **Exploration** |  |  |  |
| Productive | **2.0** |  |  |
| Dry | **2.0** |  |  |
| **Development** |  |  |  |
| Productive | **20.0** | 18.0 | 6.0 |
| In progress | **—** | 1.0 | 1.0 |
| **Service** |  |  |  |
| Water injectors | **8.0** | 3.0 | 1.0 |
|  | **32.0** | 22.0 | 8.0 |
| **Ecuador** |  |  |  |
| **Exploration** |  |  |  |
| Productive | **2.0** |  |  |
|  | **2.0** | **—** | **—** |
| **Total** | **34.0** | 22.0 | 8.0 |

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One well in-progress in Colombia as at December 31, 2021, was put on production during the first quarter of 2022. In 2022, we continued work on power reliability and expansion infrastructure in the Acordionero, Cumplidor, Cohembi and Costayaco fields.

**Well Statistics**

The following table sets forth our productive wells as of December 31, 2022:

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| | | |
|:---|:---|:---|
| | **Oil Wells** | **Oil Wells** |
| | **Gross** | **Net** |
| Colombia <sup>(1)</sup> | 285.0 | 251.0 |
| Ecuador | 2.0 | 2.0 |
|  | 287.0 | 253.0 |

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<sup>(1)</sup> Includes 67.0 gross and 63.0 net water and gas injector wells and 93.0 gross and 91.0 net wells with multiple completions.

We commenced the execution of our 2023 capital program, as planned, and as of February 16, 2023, have drilled four development wells in Chaza Block and three in Midas Block.

**Developed and Undeveloped Acreage**

At December 31, 2022, our acreage was located 91% in Colombia and 9% in Ecuador. The following table sets forth our developed and undeveloped oil and gas lease and mineral acreage as of December 31, 2022:

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| | | | | | | |
|:---|:---|:---|:---|:---|:---|:---|
| | **Developed** | **Developed** | **Undeveloped** <sup>(2)</sup> | **Undeveloped** <sup>(2)</sup> | **Total** | **Total** |
| | **Gross** | **Net** | **Gross** | **Net** | **Gross** | **Net** |
| Colombia <sup>(1)</sup> | 330029 | 242402 | 1129362 | 1119817 | 1459391 | 1362219 |
| Ecuador |  |  | 138239 | 138239 | 138239 | 138239 |
| Total | 330029 | 242402 | 1267601 | 1258056 | 1597630 | 1500458 |

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<sup>(1)</sup> Excludes our interest in three blocks with a total of 0.1 million net acres for which government approval of relinquishment or sale was

pending at December 31, 2022.

<sup>(2)</sup> As of December 31, 2022, the exploration phase for 0.3 million gross and net undeveloped acres expires within the next three years, with

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;an option to extend the exploration phase for 50% of the expired area.

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**Marketing and Major Customers**

Colombia represents approximately 99% of our production with oil reserves and production mainly located in the Middle Magdalena Valley ("MMV") and Putumayo Basin. In MMV, our largest field is the Acordionero field, where we produce approximately 17° API oil, which represented 52% of total Company production for the year ended December 31, 2022. The Putumayo production is approximately 27° API for Chaza Block and 18° API for Suroriente Block, representing 25% and 14%, respectively, of total Company production for the year ended December 31, 2022 .

We have entered into numerous sales agreements for our production from MMV and the Putumayo Basin with domestic and international customers. These agreements are subject to renegotiation terms between twelve and thirty months and generally contain mutual termination provisions with 90 days' notice. The volume of crude oil contemplated in these sales agreements does not include the volume of oil corresponding to royalties taken in-kind and starting October 2022 does include volumes relating to HPR royalties.

All of our Putumayo production is sold at the wellhead. The oil is picked up by customer at the Company-operated truck loading stations located at our Costayaco battery or Santana station facilities in Putumayo North and at our Cohembi and Cumplidor fields in Putumayo South. Production from the Acordionero field in MMV is trucked and sold at various terminals or pipeline inlets and various distances from the Acordionero field, depending on the marketing strategy to optimize the value. Production from MMV minor fields is sold at wellhead.

In 2022, all of our MMV production was sold to one international marketer and all of our Putumayo production was sold to two international marketers. The sales agreements for Putumayo and MMV production expire on March 31, 2025. The loss of each individual sales customer will not have a material adverse impact on our Company as customers can be substituted.

We receive revenues for our Colombian oil sales in U.S. dollars. Oil prices for sales of our crude oil are defined by agreements with the purchasers of the oil. They are based generally on an average price for crude oil, referenced to ICE Brent, with adjustments for differences in quality, specified fees, transportation fees, and transportation tax. Pipeline tariffs are denominated in U.S. dollars, and trucking costs are in Colombian Pesos.

**Competition**

The oil and gas industry is highly competitive. We face competition from both local and multinational companies. This competition impacts our ability to acquire properties, contract drilling and other oil field equipment, and secure trained personnel. Many competitors, such as Colombia's and Ecuador's national oil companies, have greater financial and technical resources. Our larger or more integrated competitors may be able to absorb the burden of existing, and any changes to, federal, state and local laws and regulations more easily than we can, which could adversely affect our competitive position. Our ability to acquire additional properties and to discover reserves in the future will depend on our ability to evaluate and select suitable properties and consummate transactions in a highly competitive environment. There is substantial competition for land contracts, prospects, and resources in the oil and natural gas industry, and we compete to develop and produce those reserves cost-effectively. In addition, we compete to monetize our oil production: for transportation capacity and infrastructure to deliver our products, maintain a skilled workforce, and obtain quality services and materials.

**Geographic Information**

Based on the geographic organization, Colombia is the only reportable segment. During 2020, we signed participation contracts for three blocks in Ecuador. For the years ended December 31, 2022, 2021 and 2020, the Ecuador business unit was not significant and was included in our Colombia reportable segment. Long-lived assets are Property, Plant and Equipment, which include all oil and gas assets, furniture and fixtures, automobiles, computer equipment, and capitalized leases. No long-lived assets are held in our country of domicile, which is the United States of America. Assets held by our corporate head office in Calgary, Alberta, Canada, were not significant as of December 31, 2022, and 2021 and were included in the Colombia reportable segment under "other" category. Because all of our exploration and development operations are in Colombia and Ecuador, we face many risks associated with these operations. See Item 1A "Risk Factors" for risks associated with our foreign operations.

**Regulation**

The oil and gas industry in both Colombia and Ecuador is heavily regulated. Rights and obligations relating to exploration, development, and production activities are explicit for each project; economics is governed by a royalty and tax regime. Various government approvals are required for property acquisitions and transfers, including, but not limited to, meeting

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financial and technical qualification criteria in order to be certified as an oil and gas company in the country. Oil and gas concessions are typically granted for fixed terms with an opportunity for extension.

***Colombia Administration***

We operate in Colombia through Colombian branches of the following entities: Gran Tierra Energy Colombia LLC, Gran Tierra Colombia Inc., and Gran Tierra Energy Resources Inc. These entities are currently qualified as operators of oil and gas properties by the ANH. The entities operate under a special regime for hydrocarbon companies in Colombia that entitle them to collect proceeds from oil sales abroad in U.S. dollars.

In Colombia, the ANH is the administrator of the hydrocarbons in the country and therefore is responsible for the administration of Colombian oil and gas contracts and managing all exploration lands. Ecopetrol, the Colombian national oil company, is a public company listed in the Colombian and United States stock markets, owned in majority by the state with the main purpose of exploring and producing hydrocarbons similar to any other integrated oil company. In addition, Ecopetrol is a major purchaser and marketer of oil in Colombia and directly or through its subsidiaries operates most of the oil pipeline transportation and refining infrastructure in the country. Ecopetrol Group also owns a majority stake in the Colombian energy transmission sector.

The ANH uses various forms of contracts, which provide full risk/reward benefits for the contractor. Under the terms of these contracts, the operator retains the right to produce all reserves, production, and income from any new exploration and evaluation block, subject to existing royalty and tax regulations. Each contract contains an exploration period and a production period. The exploration period contains a number of exploration phases, and each phase has an associated work commitment. The production period lasts a number of years (usually 24) from the declaration of a commercial hydrocarbon discovery. Such contracts may be terminated at election of the ANH on the failure of the contract holder to comply with certain material terms of the contract, such as failure to perform committed exploration operations or investments in accordance with the contract. Ecopetrol uses various forms of contracts, which contain exploration and development phases. Duration of contracts can be life of field or up to a specific date and the terms of such contracts vary depending on the type of contract. Under an Ecopetrol contract, the partner retains its working interest rights to produce all reserves, production and income from any new exploration and evaluation block, subject to existing royalty and tax regulations during the duration of such contracts.

When operating under an ANH contract, the contractor is the owner of the hydrocarbons extracted from the contract area during the performance of operations, except for royalty volumes which are collected by the ANH (or its designee). The contractor can market the hydrocarbons in any manner whatsoever, subject to a limitation in the case of natural emergencies where the law specifies the manner of sale. Under an Ecopetrol contract, each party owns its working interest of the hydrocarbons extracted.

The contracts in place with ANH and Ecopetrol are agreements among both parties duly protected by regulation and, therefore, cannot be unilaterally adjusted at election of the Government. Contracts include the instances for remediation, arbitration and other protection measures. In addition, investment protection treaties and Colombia regulation protect the sanctity of existing contract.

***Ecuador Administration***

We operate in Ecuador through the Ecuadorian branch of Gran Tierra Energy Colombia, LLC.

In Ecuador, the Ministry of Energy and Mines ("MEM", for its acronym in Spanish) is responsible for signing the oil and gas contracts and regulating the Ecuadorian oil and gas industry through the Agency for Regulation and Control of Energy and Non-Renewable Natural Resources.

The MEM uses service and participation contracts for the exploration and/or exploitation of hydrocarbons ("Participation Contracts"). We currently hold three Participation Contracts which provide for full risk for the contractor and production sharing with the MEM and contain an exploration and an exploitation periods. The exploration period has an associated work commitment and lasts typically 4 years. The participation contracts include a provision to extend the exploration period for up to two years, on the grounds of, among others, delays caused by the Ecuadorian government in the environmental licensing procedures. In the second quarter of 2021, we received a two-year extension of the exploration period for all three Participation Contracts, under the aforementioned provision. The exploitation period usually lasts 20 years from the approval of the development plan for one of several commercial hydrocarbon discoveries. Such contracts may be terminated at the election of the MEM on the failure of the contract holder to comply with certain material terms of the contract, such as failure to perform committed exploration operations in accordance with the contract.

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When operating under a participation contract, the contractor is the owner of the hydrocarbons extracted from the contract area during the performance of operations, except for the share of volumes owned by the MEM agreed under each contract.

**Environmental Compliance**

Our activities are subject to laws and regulations governing environmental compliance quality, waste and pollution control in the countries where we maintain operations. Our activities with respect to exploration, drilling, production facilities, including the operation and construction of pipelines, plants and other facilities for transporting, processing, treating or storing oil and other products, are subject to stringent environmental regulation by regional and federal authorities in Colombia and Ecuador. Such regulations relate to mandatory environmental impact studies, the discharge of pollutants into air and water, water use and management, the management of non-hazardous and hazardous waste, including its transportation, storage and disposal permitting for the construction of facilities, recycling requirements and reclamation standards, and the protection of certain plants and animal species as well as cultural resources and areas inhabited by indigenous peoples, among others. Risks are inherent in oil and gas exploration, development and production operations. These risks include blowouts, fires, or spills. Significant costs and liabilities may be incurred in connection with environmental compliance issues. Licenses and permits required for our exploration and production activities may not be obtainable on reasonable terms or on a timely basis, which could result in delays and have an adverse effect on our operations. Spills and releases of petroleum products into the environment can result in remediation costs and liability for damages. The costs of remedying such conditions may be significant, and remediation obligations could adversely affect our financial condition, results of operations and prospects. Moreover, violations of environmental laws and regulations can result in the issuance of administrative, civil or criminal fines and penalties, as well as orders or injunctions prohibiting some or all of our operations in affected areas. In addition, indigenous groups or other local organizations could oppose our operations in their communities, potentially resulting in delays which could adversely affect new developments. Governmental or judicial actions may influence the interpretation and enforcement of environmental laws and regulations and may thereby increase licensing and compliance costs. We do not expect that the cost of compliance with regional and federal provisions, which have been enacted regulating the discharge of materials into the environment, or otherwise relating to the protection of the environment or natural resources, will be material to us.

We have implemented a company wide web-based reporting system which allows us to track incidents and respective corrective actions and associated costs. We have a Corporate Health, Safety, and Environmental Management Policy and Plan as well as a Corporate Environmental Management Plan ("EMP"). The EMP is based on the environmental performance standards of the World Bank/IFC and reflects best industry practices. We have an Environmental Management System which is ISO14001:2015 certified representing compliance with internationally recognized industry best practice, as well as the environmental risk management program and robust waste management procedures. Air, soil and water testing occurs regularly and environmental contingency plans have been prepared for all sites and transportation of oil. We have a regular quarterly reporting system, reporting to executive management as well as the Health Safety and Environment Committee of the Board of Directors. We have a schedule of internal and external audits and routine checking of practices and procedures and conduct emergency response exercises.

**Human Capital Management**

At December 31, 2022, we had 336 full-time employees (December 31, 2021 - 319): 96 located in the Calgary corporate office, 235 in Colombia (163 staff in Bogota and 72 field personnel), and 5 in Ecuador (Quito). None of our employees are represented by labor unions, and we consider our employee relations to be good.

*Health and Safety*

Safety is our top priority, and we have implemented safety management systems, procedures, and tools to protect our employees and contractors. As part of our Health and Safety Management System, we identify potential risks associated with the workplace and develop measures to mitigate possible hazards. We support our employees with general safety training and implement specific programs for those working in all our operations, such as equipment and machinery safety, chemical management, and electrical safety.

*Workplace Practices and Policies*

Gran Tierra Energy is an equal opportunity employer committed to equality and sourcing local employees, contractors, and suppliers. We have a program to increase gender and diversity representation, including guidelines to prevent gender discrimination in selection and recruitment by contractors, incentives to promote the recruitment of women throughout the supply chain, training to increase the competitiveness of female employees and candidates, and guarantees of fair working conditions including schedules and salaries.

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We are committed to enabling employees and contractors to grow within their roles to advance by offering coaching and mentoring programs. An example of this is our Te Enseña (Learn with Gran Tierra) program. It involves independent training sessions across several departments, where participants improve internal knowledge and further develop their skill sets. We also offer employee-led virtual training sessions that promote individual growth and create a space to learn from their peers. These programs have fostered interdepartmental connections between employees and contractors providing ability to work remotely.

*Compensation* 

We believe all that employees deserve competitive compensation and standard short and long-term incentives that enable employees to share success of the company.

*Engagement*

We believe that open, honest, and transparent communication among the team members, managers, and senior management promotes company engagement and offers a strong understanding of our business's big picture. We regularly encourage employees to learn about the organization's strategic objectives and understand company's decisions and how those decisions impact them specifically. We undertake quarterly reviews to inform our team about the company's performance and future goals. We believe these key strategies have led to strategic alignment across the organization.

**Available Information**

We file or furnish annual, quarterly and current reports, proxy statements and other documents with the SEC. We make available free of charge through our website at www.grantierra.com our Annual Reports on Form 10-K, Quarterly Reports on Form 10-Q, Current Reports on Form 8-K, and all amendments to those reports as soon as reasonably practicable after such material is electronically filed or furnished with the SEC. Our Code of Business Conduct and Ethics, our Corporate Governance Guidelines, our Audit Committee Charter, our Compensation Committee Charter and our Nominating and Corporate Governance Committee Charter are also posted to the governance section of our website. Our website address is provided solely for informational purposes. Information on our website is not incorporated into this Annual Report or otherwise made part of this Annual Report. We intend to use our website as means for distributing information to the public for purposes of compliance with Regulation Fair Disclosure.

In addition, the SEC maintains a website (www.sec.gov) that contains reports, proxy and information statements, and other information regarding issuers that file electronically with the SEC, including us.

**Item 1A. Risk Factors**

***Risks Related to our Business***

***Prices and markets for oil and natural gas are unpredictable and tend to fluctuate significantly, which could cause temporary suspension of production and reduce our value***

Substantially all of our revenues are derived from the sale of oil. The current and forward contract oil price is based on world demand, supply, weather, pipeline capacity constraints, inventory storage levels, geopolitical unrest, world health events and other factors, all of which are beyond our control. Historically, the market for oil has been volatile and is expected to remain so. Furthermore, prices which we receive for our oil sales, while based on international oil prices, are established by contracts with purchasers and include the deductions for transportation and quality differentials. The differentials and transportation costs can change over time and have a detrimental impact on realized prices.

Future decreases in the prices of oil, sustained low prices, periods of extended pricing volatility, and increasing borrowing costs may have a material adverse effect on our financial condition, the future results of our operations (including rendering existing projects unprofitable or requiring temporary suspension of fields), financing available to us, and quantities of reserves recoverable on an economic basis, as well as the market price for our securities.

***We may be adversely affected by global epidemics, including the ongoing COVID-19 pandemic***

The outbreak of COVID-19 continued throughout 2022. Worldwide economic climate continued to be volatile making accounting estimates more onerous. Despite the improvement in oil prices in 2022, this volatile economic climate has had and may in the future have significant adverse impacts on our Company. The extent to which the COVID-19 pandemic adversely affects our business, results of operations and financial condition will depend on future developments, many of which are outside of our control. such as the continued severity, including any sustained geographic resurgence; the emergence of new

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variants and strains of the COVID-19 virus; the success of actions to contain or treat the virus, and actions taken by governmental authorities and other third parties in response to the pandemic. To the extent the COVID-19 pandemic may continue to adversely affect our business, operations, financial condition and operating results, it may also have the effect of heightening the other risks described herein.

***Estimates of oil and natural gas reserves may be inaccurate and our actual revenues may be lower than estimated***

We make estimates of oil and natural gas reserves, upon which we base our financial projections and capital expenditure plans. We make these reserve estimates using various assumptions, including assumptions as to oil and natural gas prices, drilling and operating expenses, capital expenditures, taxes and availability of funds. Some of these assumptions are inherently subjective, and the accuracy of our reserve estimates relies in part on the ability of our management team, engineers and other advisors to make accurate assumptions. Wells that are drilled may not achieve the results expected. Economic factors beyond our control, such as world oil prices, interest rates, inflation, and exchange rates, will also impact the quantity and value of our reserves.

The process of estimating oil and natural gas reserves is complex and requires us to use significant decisions and assumptions in the evaluation of available geological, geophysical, engineering and economic data for each property. As a result, our reserves estimates are inherently imprecise. All categories of reserves are continually subject to revisions based on production history, results of additional exploration and development, price changes and other factors. When producing an estimate of the amount of oil that is recoverable from a particular reservoir, probable reserves are those additional reserves that are less certain to be recovered than proved reserves but which, together with proved reserves, are as likely as not to be recovered. Possible reserves are even less certain and generally require only a 10% or greater probability of being recovered. Estimates of probable and possible reserves are by their nature much more speculative than estimates of proved reserves and are subject to greater uncertainties, and accordingly the likelihood of recovering those reserves is subject to substantially greater risk. Actual future production, oil and natural gas prices, revenues, taxes, exploration and development expenditures, operating expenses and quantities of recoverable oil and natural gas reserves may vary substantially from those we estimate. Such changes could materially reduce our revenues and result in the impairment of our oil and natural gas interests.

***Unless we are able to replace our reserves and production, and develop and manage oil and natural gas reserves and production on an economically viable basis, our financial condition and results of operations will be adversely impacted***

Our future success depends on our ability to find, develop and acquire additional oil and natural gas reserves that are economically recoverable. Producing oil and natural gas reservoirs generally are characterized by declining production rates that vary depending upon reservoir characteristics and other factors. Our future oil and natural gas reserves and production, and therefore our cash flow and results of operations, are highly dependent on our success in efficiently developing and exploiting our current reserves and economically finding or acquiring additional recoverable reserves. The value of our securities and our ability to raise capital will be adversely impacted if we are not able to replace our reserves that are depleted by production. We may not be able to develop, exploit, find or acquire sufficient additional reserves to replace our current and future production.

Exploration, development and production costs (including operating and transportation costs), marketing costs (including distribution costs) and regulatory compliance costs (including taxes) will substantially impact the net revenues we derive from the oil and natural gas that we produce. These costs are subject to fluctuations and variations in the areas in which we operate, and we may not be able to predict or control these costs. If these costs exceed our expectations, this may adversely affect our results of operations.

Our future reserves will depend not only on our ability to develop and effectively manage then-existing properties, but also on our ability to identify and acquire additional suitable producing properties or prospects, to identify and retain responsible service providers and contractors to efficiently drill and complete our wells and to find markets for the oil and natural gas we develop and to effectively distribute our production into our markets.

***Exploration for oil and natural gas, and development of new formations, is risky***

Oil and natural gas exploration involves a high degree of operational and financial risk. These risks are more acute in the early stages of exploration, appraisal and development. It is difficult to predict the results and project the costs of implementing an exploratory drilling program due to the inherent uncertainties and costs of drilling in unknown formations and encountering various drilling conditions, such as unexpected formations or pressures, premature decline of reservoirs, the invasion of water into producing formations, tools lost in the hole, and changes in drilling plans and locations as a result of prior exploratory wells or additional seismic data and interpretations thereof. Future oil and gas exploration may involve unprofitable efforts, not

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only from dry wells, but from wells that are productive but do not produce sufficient net revenues to return a profit after drilling, operating and other costs.

Oil and natural gas exploration, development and production operations are subject to the risks and hazards typically associated with such operations, including, but not limited to, fire, explosion, blowouts, cratering, sour gas releases, spills and other environmental hazards. Such risks and hazards could result in substantial damage to oil and natural gas wells, production facilities, other property or the environment, as well as personal injury to our employees, contractors or members of the public.

Losses resulting from the occurrence of any of these risks may have a material adverse effect on our business, financial condition, results of operations and prospects.

Although we maintain well control and liability insurance in an amount that we consider prudent and consistent with industry practice, liabilities associated with certain risks could exceed policy limits or not be covered. In either event we could incur significant costs.

***Our business is subject to local legal, social, security, political and economic factors that are beyond our control, which could impair or delay our ability to expand our operations or operate profitably***

All of our proved reserves and production are currently located in Colombia and Ecuador; however, we may eventually expand to other countries. Exploration and production operations are subject to legal, social, security, political and economic uncertainties, including terrorism, social unrest and activism, illegal blockades, strikes by local or national labor groups, interference with private contract rights, extreme fluctuations in currency exchange rates, high rates of inflation, exchange controls, changes in tax rates, changes in laws or policies affecting environmental issues (including land use and water use), workplace safety, foreign investment, foreign trade, investment or taxation, as well as restrictions imposed on the oil and natural gas industry, such as restrictions on production, price controls and export controls. When such disruptions occur, they may adversely impact our operations and threaten the economic viability of our projects or our ability to meet our production targets.

Both Colombia and Ecuador may experience future political and economic instability. Colombia has experienced social, economic and security turmoil related to security, guerilla and narcotrafficking. Political changes because of future electoral processes could result in new governments or the adoption of new policies, laws or regulations that might assume a substantially more hostile attitude toward foreign investment, including but not limited to: the imposition of additional taxes as was the case in 2022; nationalization; changes in energy or environmental policies or the personnel administering them; changes in oil and natural gas pricing policies; and royalty changes or increases. In an extreme case, such a change could result in termination of contract rights and expropriation of foreign-owned assets or renegotiation or nullification of existing concessions and contracts. Any changes in the oil and gas or investment regulations and policies or a shift in political attitudes in Ecuador or Colombia are beyond our control and may significantly hamper our ability to expand our operations or operate our business at a profit. Colombia has investment protection treaties in place with the United States and Canada as well as a history of sanctity of contracts.

Oil production in Ecuador has recently been impacted by outages experienced by the nation's two major pipelines (the Sistema de Oleoductos Trans Ecuadoriano ("SOTE") and the Oleoducto de Crudos Pesados ("OCP") pipelines) caused by physical damage from significant soil erosion in areas along the Coca river. While these pipelines have now been rerouted and are back in service, there remains some risk to our ability to transport oil to market through these systems from future, unforeseen natural events that could again generate outages in the OCP and SOTE pipelines. Such events could include, but are not limited to, earthquakes, volcanic eruptions and additional significant soil erosion. GTE mitigates this risk through the maintenance of surplus storage capacity at its facilities (typically 3-days by design) and the optionality of trucking oil to points of sale.

***We are vulnerable to risks associated with geographically concentrated operations***

The vast majority of our production comes from four fields located in Colombia. For the year ended December 31, 2022, the Acordionero, Costayaco, Moqueta and Cohembi fields collectively generated 89% of our production and at December 31, 2022, these four fields accounted for 80% of our proved reserves. As a result of this concentration, we may be disproportionately exposed to the impact of, among other things, regional supply and demand factors including limitations on our ability to most profitably sell or market our oil to a smaller pool of potential buyers, delays or interruptions of production from wells in these areas caused by governmental regulation, community protests, guerrilla activities, processing or transportation capacity constraints, continued authorization by the government to explore and drill in these areas, severe weather events and the availability of drilling rigs and related equipment, facilities, personnel or services. Due to the concentrated nature of our portfolio of properties, a number of our properties could experience any of the same conditions at the same time, resulting in a

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relatively greater impact on our results of operations than they might have on other companies that have a more diversified portfolio of properties.

We rely on local infrastructure and the availability of transportation for storage and shipment of our products. This infrastructure, including storage and transportation facilities, is less developed than that in North America and may be insufficient for our needs at commercially acceptable terms in the localities in which we operate. Further, we operate in remote areas and may rely on helicopters, boats or other transportation methods. Some of these transport methods may result in increased levels of risk, including the risk of accidents involving serious injury or loss of life, and could lead to operational delays which could affect our ability to add to our reserve base or produce oil and could have a significant impact on our reputation or cash flow. Additionally, some of this equipment is specialized and may be difficult to obtain in our areas of operations, which could hamper or delay operations, and could increase the cost of those operations. In 2022 experienced several short-term localized farmers' blockades directed at the Colombian government, which resulted in the Suroriente and PUT-7 Blocks being temporarily shut-in.

***Social disruptions or community disputes in our areas of operations may delay production and result in lost revenue***

To enjoy the support and trust of local populations and governments, we must demonstrate a commitment to providing local employment, training and business opportunities; a high level of environmental performance; open and transparent communication; and a willingness to discuss and address community issues including community development investments that are carefully selected, not unduly costly and bring lasting social and economic benefits to the community and the area. Improper management of these relationships could lead to a delay or suspension of operations, loss of license or major impact to our reputation in these communities, which could adversely affect our business. We cannot ensure that such issues or disruptions will not be experienced in the future, and we cannot predict their potential impacts, which may include delays or loss of production, standby charges, stranded equipment, or damage to our facilities. We also cannot ensure that we will not experience protests or blockades erected by criminal groups or cultivators of illegal crops, in response to the Colombian government's eradication of such crops, if such crops are grown in proximity to roads required to access our operations. In addition, we must comply with legislative requirements for prior consultation with communities and ethnic groups who are affected by our proposed projects in Colombia and Ecuador. Notwithstanding our compliance with these requirements, we may be sued by such communities through a writ for protection of tutela in the Colombian courts for enhanced consultation, potentially leading to increased costs, operational delays and other impacts. In addition, several areas in Colombia have conducted Popular Consultations and essential referendums on extractive industries. The referendums were organized by opponents of the mining or oil and natural gas industries. It remains unclear to what extent such results can impact the exercise of mineral rights conferred by the national government. In 2022, the Colombian government has begun conversations with other illegal armed groups in order to seek execution of new peace processes and agreements aimed at dismantling such organizations.

***Security concerns in Colombia or Ecuador may disrupt our operations***

Oil pipelines have historically been primary targets of terrorist activity in Colombia. Although a Peace Agreement was ratified by Colombian government in 2016, the result of which was the demobilization and disarmament of the Revolutionary Armed Forces of Colombia ("FARC"), there continue to be examples of violence against pipelines and other infrastructure that has been attributed to former FARC dissident groups and other illegal groups. It is not currently known whether or to what degree violence will continue and whether and to what degree that violence may impact our operations. Notwithstanding the Peace Agreement ratified and the ongoing efforts to implement such Agreements, increased eradication by the Colombian government of illicit crops, as well as the continuing attempts by the Colombian government to reduce or prevent activity of guerrilla dissidents and of farmers, such efforts may not be successful and such activity may continue to disrupt our operations in the future or cause us higher security costs and could adversely impact our financial condition, results of operations or cash flows.

Colombia and Ecuador have experienced social turmoil related to changes in economic policy, which have resulted in illegal road blockades throughout the countries, and illegal invasions to private property and impacting regions where company activities are located. While blockages have been historically directed at the State, the resulting impact may hinder our ability to mobilize oil, personnel and equipment, resulting in temporary shut-in of production or negatively impacting Company assets.

Colombia and Ecuador also both have a history of security problems. Our efforts to ensure the security of our personnel and physical assets may not be successful and there can also be no assurance that we can maintain the safety of our field personnel or our contractors' field personnel and our Bogota and Quito head office personnel or operations in Colombia and Ecuador or that this violence will not adversely affect our operations in the future and cause significant loss. If these security problems disrupt our operations, our financial condition and results of operations could be adversely affected.

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***All of our revenue is generated outside of Canada and the United States, and if we determine to, or are required to, repatriate earnings from foreign jurisdictions, we could be subject to taxes***

All of our revenue is generated outside of Canada and the United States. The cash generated from operations abroad is generally not available to fund domestic or head office operations unless funds are repatriated. At this time, we do not intend to repatriate further funds, other than to pay head office charges, but if we did, we might have to accrue and pay withholding taxes in certain jurisdictions on the distribution of accumulated earnings. Undistributed earnings of foreign subsidiaries are considered to be permanently reinvested and a determination of the amount of unrecognized deferred tax liability on these undistributed earnings is not practicable.

***Certain acquisitions could adversely affect our financial results***

We may pursue strategic acquisitions as part of our business strategy from time to time. There is no assurance that we will be able to find suitable acquisition candidates or be able to complete acquisitions on favorable terms, if at all. We may also discover liabilities or deficiencies associated with any acquisitions that were not identified in advance, which may result in unanticipated costs. Additionally, integration efforts associated with our acquisitions may require significant capital and operating expense.

We intend to pay for future acquisitions using cash, stock, notes, debt, assumption of indebtedness or any combination of the foregoing. To the extent that we do not generate sufficient cash internally to provide the capital we require to fund our growth strategy and future operations, we will require additional debt or equity financing. This additional financing may not be available or, if available, may not be on terms acceptable to us. Further, high volatility in the capital markets and in our stock price may make it difficult for us to access the capital markets at attractive prices, if at all.

In addition, the anticipated benefits of an acquisition may not be realized fully or at all, or may take longer to realize than we expect. If we are not able to realize the anticipated benefits expected from our acquisitions within a reasonable time, our business, financial condition and results of operations may be adversely affected.

***The threat and impact of cyberattacks may adversely impact our operations and could result in information theft, data corruption, operational disruption, and/or financial loss***

We use digital technologies and software programs to interpret seismic data, manage drilling rigs, conduct reservoir modeling and reserves estimation, as well as to process and record financial and operating data. We depend on digital technology, including information systems and related infrastructure as well as cloud application and services, to store, transmit, process and record sensitive information (including trade secrets, employee information and financial and operating data), communicate with our employees and business partners, analyze seismic and drilling information, estimate quantities of oil and gas reserves and for many other activities related to our business. The complexities of the technologies needed to explore for and develop oil and gas in increasingly difficult physical environments, and global competition for oil and gas resources make certain information attractive to thieves. Our business processes depend on the availability, capacity, reliability and security of our information technology infrastructure and our ability to expand and continually update this infrastructure in response to our changing needs and therefore it is critical to our business that our facilities and infrastructure remain secure. While we have implemented strategies to mitigate impacts from these types of events, we cannot guarantee that measures taken to defend against cybersecurity threats will be sufficient for this purpose. The ability of the information technology function to support our business in the event of a security breach or a disaster such as fire or flood and our ability to recover key systems and information from unexpected interruptions cannot be fully tested and there is a risk that, if such an event actually occurs, we may not be able to address immediately the repercussions of the breach or disaster. In that event, key information and systems may be unavailable for a number of days or weeks, leading to our inability to conduct business or perform some business processes in a timely manner. Moreover, if any of these events were to materialize, they could lead to losses of sensitive information, critical infrastructure, personnel or capabilities essential to our operations and could have a material adverse effect on our reputation, financial condition or results of operations.

Our employees have been and will continue to be targeted by parties using fraudulent "spoof" and "phishing" emails to misappropriate information or to introduce viruses or other malware through "trojan horse" programs to our computers. These emails appear to be legitimate emails but direct recipients to fake websites operated by the sender of the email or request that the recipient send a password or other confidential information through email or download malware. Despite our efforts to mitigate "spoof" and "phishing" emails through policies and education, "spoof" and "phishing" activities remain a serious problem that may damage our information technology infrastructure.

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***Risks Related to our Financial Condition***

***Our business requires significant capital expenditures, and we may not have the resources necessary to fund these expenditures***

Our base capital program for 2023 is $210.0 million to $250.0 million for exploration and development activities. We expect to fund our 2023 capital program through cash flows from operations. Funding this program from cash flow from operations relies in part on Brent oil prices being at least $60 per barrel or greater. For the period from January 1 to February 16, 2023, the average price of Brent oil was $83.95 per barrel.

If cash flows from operations, cash on hand and available capacity under our credit facility are not sufficient to fund our capital program, we may be required to seek external financing or to delay or reduce our exploration and development activities, which could impact production, revenues and reserves.

If we require additional capital, we may pursue sources of capital through various financing transactions or arrangements, including joint venturing of projects, debt financing, equity financing or other means. We may not be able to access capital on favorable terms or at all. If we do succeed in raising additional capital, future financings may be dilutive to our shareholders, as we could issue additional shares of common stock or other equity to investors. In addition, debt and other mezzanine financing may involve a pledge of assets, require covenants that would restrict our business activities, and may be senior to interests of equity holders. We may incur substantial costs in pursuing future capital financing, including investment banking fees, legal fees and other costs. We may also be required to recognize non-cash expenses in connection with certain securities we may issue, such as convertibles and warrants, which would adversely impact our financial results.

Our ability to obtain needed financing may be impaired by factors such as weak capital markets (both generally and for the oil and gas industry in particular), the location of our oil and natural gas properties, including in Colombia and Ecuador, low or declining prices of oil and natural gas on the commodities markets, and the loss of key management. Further, if oil or natural gas prices on the commodities markets decrease, then our revenues will likely decrease, and such decreased revenues may increase our requirements for capital. Some of the contractual arrangements governing our exploration activity may require us to commit to certain capital expenditures, and we may lose our contract rights if we do not have the required capital to fulfill these commitments. If the amount of capital we are able to raise from financing activities, together with our cash flows from operations, is not sufficient to satisfy our capital needs (even to the extent that we reduce our activities), we may be required to curtail our operations.

Certain sovereign wealth, pension and endowment funds, have promoted the divestment of fossil fuel equities and pressured lenders to cease or limit funding to companies engaged in the extraction of fossil fuel reserves, including recent divestment actions by several prominent New York State and New York public employee pension funds. Such environmental initiatives aimed at targeting climate changes could ultimately interfere with our access to capital and ability to finance our operations.

A failure to meet goals or evolving stakeholder expectations of Environmental, Social and Governance ("ESG") practices and reporting may potentially harm our reputation and impact employee retention, customer relationships, and access to capital. For example, certain market participants use third party benchmarks or scores to measure a company's ESG practices in making investment decisions and customers and suppliers may evaluate our ESG practices or require that we adopt certain ESG policies as a condition of awarding contracts.

***The borrowing base under our credit facility may be reduced by the lenders, which could prevent us from meeting our future capital needs***

The borrowing base under our credit facility is currently $150.0 million, of which $100.0 million is presently eligible for borrowing and an option for additional $50.0 million upon mutual agreement by the Company and the lender. Our borrowing base may decrease as a result of a decline in oil or natural gas prices, operating difficulties, declines in reserves, lending requirements or regulations, lenders willingness to lend to the oil and gas industry, the issuance of new indebtedness or for any other reason. We cannot be certain that funding will be available if needed, and to the extent required, on acceptable terms. In the event of a decrease in our borrowing base, we could be required to repay any indebtedness in excess of the redetermined borrowing base, which would deplete cash flow from operations or require additional financing.

Further, our borrowing base is made available to us subject to compliance with financial covenants under the terms of our credit facility, including compliance with ratios and other financial covenants of such facility, and a failure to comply with such ratios or covenants could force us to repay a portion of our borrowings and suffer adverse financial impacts. We are required to maintain Global Coverage Ratio of at least 150% calculated using net present value of consolidated future cash flows over the

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outstanding amount on the credit facility, Prepayment Life Coverage Ratio of at least 150% calculated using the estimated aggregate value of commodities to be delivered over the outstanding amount on the credit facility and liquidity ratio where the Company's projected sources of cash exceed projected uses of cash by at least 1.15 times.

As of December 31, 2022, the credit facility remained undrawn.

On February 20, 2023, the the availability period for draws under the credit facility were extended for additional six months.

***Our credit facility matures in August 2024. Capital financing may not be available to us at economic rates***

Our credit facility will mature in August 2024. There can be no assurance that financial market conditions or borrowing terms at the time our credit facility is renegotiated will be as favorable as the current terms and interest rates. We may be unable to obtain financing in the future for working capital, capital expenditures, acquisitions, debt service requirements, or other purposes.

***Foreign currency exchange rate volatility may affect our financial results***

We sell our oil and natural gas production under agreements that are denominated mainly in U.S. dollars. Many of the operational and other expenses we incur, including current and deferred tax assets and liabilities in Colombia, are denominated in Colombian pesos. Most of our administration costs in Canada are incurred in Canadian dollars. As a result, we are exposed to translation risk when local currency financial statements are translated to U.S. dollars, our reporting currency. An appreciation of local currencies can increase our costs and negatively impact our results from operations. Because our Consolidated Financial Statements are presented in U.S. dollars, we must translate revenues, expenses and income, as well as assets and liabilities, into U.S. dollars at exchange rates in effect during or at the end of each reporting period. We are also exposed to transaction risk on settlement of payables and receivables denominated in foreign currency.

***Legal and Regulatory Risks***

***We are dependent on obtaining and maintaining permits and licenses from various governmental authorities***

Our oil and natural gas exploration and production operations are subject to complex and stringent laws and regulations. In order to conduct our operations in compliance with these laws and regulations, we must obtain and maintain numerous licenses, permits, approvals and certificates, including environmental and other operating permits. We may not be able to obtain, sustain or renew such licenses and permits on a timely basis or at all. We may also have licenses and permits rescinded or may not be able to renew expiring licenses and permits. Failure or delay in obtaining or maintaining regulatory approvals or permits could have a material adverse effect on our ability to develop and explore on our properties, and receipt of drilling permits with onerous conditions could increase our compliance costs. Loss of permits for existing drilling, water injection or other activities necessary for production may result in a decline of our production levels and revenues or damage to the well structure. Regulations and policies relating to these licenses and permits may change, be implemented in a way that we do not currently anticipate or take significantly greater time to obtain. There can be no assurance that future political conditions in Colombia and Ecuador will not result in changes to policies with respect to foreign development and ownership of oil, environmental protection, health and safety or labor relations, which may negatively affect our ability to undertake exploration and development activities in respect of present and future properties, as well as our ability to raise funds to further such activities.

As we are not the operator of all the joint ventures we are currently involved in, we may rely on the operator to obtain all necessary permits and licenses. If we fail to comply with these requirements, we could be prevented from drilling for oil and natural gas, and we could be subject to civil or criminal liability or fines. Revocation or suspension of our environmental and operating permits could have a material adverse effect on our business, financial condition and results of operations.

In Colombia, the ANH is delegated by Ministry of Mining and Energy to offer and award new blocks through exploration and production ("E&P) and technical evaluation agreement contract terms. The new administration has stated that no new bid rounds for exploration blocks will be done until it is decided differently by the government. In addition, in 2023 the government has issued a new decree eliminating the obligation of ANH to offer bid rounds for the blocks offered by Companies. Under new Colombia regulation, we may not be able to obtain new exploration licenses which can have adverse impact on our future exploration activities, production and operations.

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***Environmental regulation and risks may adversely affect our business***

Environmental regulation is stringent and the costs and expenses of regulatory compliance are increasing. All phases of the oil and natural gas business present environmental risks and hazards and are subject to environmental regulation pursuant to an extensive suite of international conventions and national and regional laws and regulations. Environmental legislation provides for, among other things, restrictions and prohibitions on spills, releases or emissions of various substances used or produced in association with oil and gas operations. The legislation also requires that wells and facility sites be operated, maintained, abandoned and reclaimed to the satisfaction of applicable regulatory authorities. Compliance with such legislation can require significant expenditures. Failure to comply with these laws and regulations may result in the suspension or termination of operations and subject us to administrative, civil and criminal fines and penalties. Our operations create the risk of significant environmental liabilities to the government or third parties for any unlawful discharge of oil, gas or other pollutants into the air, soil or water or for certain other environmental impacts. There is uncertainty around the impact of environmental laws and regulations, including those presently in force and those expected to be proposed in the future. We cannot predict how future environmental laws will be interpreted, administered or enforced, but more stringent laws or regulations or more vigorous enforcement policies could in the future require material expenditures by us for the installation and operation of compliant systems; therefore it is impossible at this time to predict the nature and impact of those requirements on our company however they may have a material adverse impact on our business.

Given the nature of our business, there are inherent risks of oil spills at drilling or operations sites due to operational failure, accidents, sabotage, pipeline failure or tampering or escape of oil due to the transportation of the oil by truck. All of these may lead to significant potential environmental liabilities, such as damages, litigation costs, clean-up costs or penalties, some of which may be material and for which our insurance coverage maybe inadequate or unavailable.

***We may be exposed to liabilities under anti-bribery laws and a finding that we violated these laws could have a material adverse effect on our business***

We are subject to anti-bribery laws in the United States, Canada, Ecuador and Colombia and will be subject to similar laws in other jurisdictions where we may operate in the future. We may face, directly or indirectly, corrupt demands by officials, tribal or insurgent organizations, international organizations, or private entities. As a result, we face the risk of unauthorized payments or offers of payments by employees, contractors, agents, and partners of ours or our subsidiaries or affiliates, given that these parties are not always subject to our control or direction. It is our policy to prohibit these practices. However, our existing safeguards and any future improvements to those measures may prove to be less than effective or may not be followed, and our employees, contractors, agents, and partners may engage in illegal conduct for which we might be held responsible. A violation of any of these laws, even if prohibited by our policies, may result in criminal or civil sanctions or other penalties (including profit disgorgement) as well as reputational damage and could have a material adverse effect on our business and financial condition.

***If the United States imposes sanctions on Colombia or Ecuador in the future, our business may be adversely affected*** 

Colombia is among several nations whose eligibility to receive foreign aid from the United States is dependent on its progress in stemming the production and transit of illegal drugs, which is subject to an annual review by the President of the United States. Although Colombia is currently eligible for such aid, Colombia may not remain eligible in the future. A finding by the President that Colombia has failed demonstrably to meet its obligations under international counter-narcotic agreements may result in the imposition of economic and trade sanctions on Colombia which could result in adverse economic consequences in Colombia including potentially threatening our ability to obtain necessary financing to develop our Colombian properties, and could further heighten the political and economic risks associated with our operations there.

***Regulations related to emissions and the impact of any changes in climate could adversely impact our business, including demand for our products, our financial condition and results of operations***

Governments around the world have become increasingly focused on regulating greenhouse gas ("GHG") emissions and addressing the impacts of climate change in some manner. GHG emissions legislation is emerging and is subject to change. For example, on an international level, in December 2015, almost 200 nations, including Colombia, agreed to an international climate change agreement in Paris, France (the "Paris Agreement"), that calls for countries to set their own GHG emission targets and be transparent about the measures each country will use to achieve its GHG emission targets. Although it is not possible at this time to predict how this legislation or any new regulations that may be adopted to address GHG emissions would impact our business, any such future laws and regulations that limit emissions of GHGs could adversely affect demand for the oil and natural gas that we produce. Current GHG emissions legislation has not resulted in material compliance costs; however, emissions, carbon and other regulations impacting climate and climate related matters are constantly evolving. It is

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not possible at this time to predict whether proposed legislation or regulations will be adopted, and any such future laws and regulations could result in additional compliance costs or additional operating restrictions. If we are unable to recover a significant amount of our costs related to complying with climate change regulatory requirements imposed on us, it could have a material adverse impact on our business, financial condition and results of operations. Significant restrictions on GHG emissions could result in decreased demand for the oil that we produce, with a resulting decrease in the value of our reserves. Further, there have been efforts in recent years to influence the investment community to consider climate change in how they invest in companies. To the extent financial markets view climate change and GHG emissions as a financial risk; this could negatively impact our cost of or access to capital. Increasing attention to the risks of climate change has resulted in an increased possibility of lawsuits brought by public and private entities against oil and natural gas companies in connection with their GHG emissions. Should we be targeted by any such litigation, we may incur liability, which, to the extent that societal pressures or political or other factors are involved, could be imposed without regard to the company's causation of or contribution to the asserted damage, or to other mitigating factors. Finally, although we strive to operate our business operations to accommodate expected climatic conditions, to the extent there are significant changes in the Earth's climate, such as more severe or frequent weather conditions in the markets we serve or the areas where our assets reside, we could incur increased expenses, our operations could be materially impacted, and demand for our products could fall.

***Risks Related to Ownership of our Common Stock***

***Shares of our Common Stock are listed on the NYSE American, the Toronto Stock Exchange ("TSX") and the London Stock Exchange ("LSE") and investors seeking to take advantage of price differences between such markets may create unexpected volatility in market prices***

Shares of our Common Stock are listed on the NYSE American, the TSX and the LSE. While the Common Stock is traded on such markets, the price and volume levels could fluctuate significantly on any market independently of the price or trading volume on other markets. Investors could seek to sell or purchase shares of Common Stock to take advantage of any price differences between the NYSE American, the TSX and the LSE through a practice referred to as arbitrage. Any arbitrage activity could create unexpected volatility in the price of the Common Stock on any of these exchanges or the volume of Common Stock available for trading on any of these markets. In addition, shareholders in any of these jurisdictions will not be able to transfer such shares of Common Stock for trading on another market without effecting necessary procedures with our transfer agent or registrar. This could result in time delays and additional cost for shareholders of the Common Stock.

***If we cannot meet the NYSE American continued listing requirements, the NYSE may delist our shares of Common Stock***

Our shares of Common Stock are currently listed on the NYSE American, and the continued listing of our shares is subject to our compliance with a number of listing standards. If we fail to maintain compliance with these continued listing standards, including if the price our shares of Common Stock remains at its current low for a substantial period of time and we fail to effect a reverse stock split upon notice from the NYSE, our shares of Common Stock may be delisted. A delisting of our shares could negatively impact us by, among other things reducing the liquidity of our shares and limiting our ability to issue additional securities, obtain additional financing or pursuant strategic transactions.

**Item 1B. *Unresolved Staff Comments***

None.

**Item 3. *Legal Proceedings***

We have several lawsuits and claims pending. The outcome of the lawsuits and disputes cannot be predicted with certainty; We believe the resolution of these matters would not have a material adverse effect on the Company's consolidated financial position, results of operations, or cash flows. We record costs as they are incurred or become probable and determinable.

**Item 4. *Mine Safety Disclosures***

Not applicable.

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**Information About Our Executive Officers**

Set forth below is information regarding our executive officers as of February 16, 2023.

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| | | |
|:---|:---|:---|
| **Name** | **Age** | **Position** |
| Gary S. Guidry | 67 | President and Chief Executive Officer, Director |
| Ryan Ellson | 47 | Chief Financial Officer and Executive Vice President, Finance |
| James Evans | 57 | Vice President, Corporate Services |
| Rodger Trimble | 61 | Vice President, Investor Relations |
| Lawrence West | 66 | Vice President, Exploration |

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• *Gary S. Guidry, President and Chief Executive Officer, Director.* Mr. Guidry has been Gran Tierra's Chief Executive Officer and President since May 7, 2015. From July 2011 to July 2014, Mr. Guidry served as President and Chief Executive Officer of Caracal Energy Inc. Mr. Guidry also served as President and CEO of Orion Oil & Gas Corp. from October 2009 to July 2011, Tanganyika Oil Corp. from May 2005 to January 2009, and Calpine Natural Gas Trust from October 2003 to February 2005. As Chief Executive Officer of these companies, Mr. Guidry was responsible for overseeing all aspects of the respective company's business. Mr. Guidry currently sits on the board of Africa Oil Corp. (since April 2008) where he also serves as a member of the Audit Committee and the board of PetroTal Corp. (since December 2017). From September 2010 to October 2011, Mr. Guidry served on the board of Zodiac Exploration Corp., from October 2009 to March 2014, he served on the board of TransGlobe Energy Corp., and from February 2007 to May 2018, he served on the board of Shamaran Petroleum Corp. Prior to these positions, Mr. Guidry served as Senior Vice President and subsequently President of Alberta Energy Company International, and President and General Manager of Canadian Occidental Petroleum's Nigerian operations. Mr. Guidry has directed exploration and production operations in Yemen, Syria and Egypt and has worked for oil and gas companies around the world in the U.S., Colombia, Ecuador, Venezuela, Argentina and Oman. Mr. Guidry is an Alberta-registered professional engineer (P. Eng.) and holds a B.Sc. in petroleum engineering from Texas A&M University.

• *Ryan Ellson, Chief Financial Officer and Executive Vice President, Finance.* Mr. Ellson has been Gran Tierra's Chief Financial Officer since May 2015. Mr. Ellson has over 23 years of experience in a broad range of international corporate finance and accounting roles. Mr. Ellson is currently a Director of Canary Biofuels and until September 2022 was a Director at PetroTal Corp. (since December 2017). From July 2014 until December 2014 Mr. Ellson was Head of Finance for Glencore E&P (Canada) Inc. and prior thereto Vice President, Finance at Caracal Energy Inc.("Caracal"), a London Stock Exchange ("LSE") listed company with operations in Chad, Africa from August 2011 until July 2014. Glencore E&P (Canada) purchased Caracal in July 2014. Prior to Caracal, Mr. Ellson was Vice President of Finance at Sea Dragon Energy from April 2010 until August 2011. In these positions, Mr. Ellson oversaw financial and accounting functions, implemented and oversaw internal financial controls, secured reserve based lending facility's and was involved in multiple capital raises. Mr. Ellson has held management and executive positions with companies operating in Chad, Egypt, India and Canada. Mr. Ellson is a Chartered Professional Accountant and holds a Bachelor of Commerce and a Master of Professional Accounting from the University of Saskatchewan. Mr. Ellson has completed the Leadership for Senior Executives program at Harvard Business School and the General Management Program at the Wharton School of the University of Pennsylvania.

• *James Evans, Vice President, Corporate Services*. Mr. Evans has been Gran Tierra's Vice President, Corporate Services, since May 2015. Mr. Evans has over 29 years of experience including working the last 18 years in the international oil and gas industry. Most recently, Mr. Evans was the Head of Compliance & Corporate Services for Glencore E&P (Canada) Inc. from July 2014 to December 2014, and prior thereto Vice President of Compliance & Corporate Services at Caracal Energy Inc. from July 2011 to June 2014 where he oversaw the execution of corporate strategy and goals, developed and implemented a robust corporate compliance program, and managed all aspects of IT, document control, security and administration. Mr. Evans also managed the recruitment, training and retention of staff in both Calgary and Chad. He oversaw the growth of Caracal Energy from seven employees to more than 400 at the time of sale to Glencore. Prior to Caracal, Mr. Evans held senior management and executive positions at Orion Oil and Gas and Tanganyika Oil, with operating experience in Egypt, Syria and Canada. Mr. Evans holds a Bachelor of Commerce degree from the University of Calgary.

• *Rodger Trimble, Vice President, Investor Relations*. Mr. Trimble has been Gran Tierra's Vice President, Investor Relations since June 2016. He is a Professional Engineer with more than 38 years of experience in domestic and international basins in various management positions. Prior to joining Gran Tierra, Mr. Trimble was Head of Corporate Planning, Budgeting & Finance with Glencore E&P (Canada) Inc. and prior thereto Director Corporate Planning, Budget & Business Development

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with Caracal Energy Inc. (acquired by Glencore E&P). He has held several senior management positions ranging from Country Manager in Argentina with Canadian Hunter Exploration, Vice President, Exploitation with Esprit Energy Trust, Manager, Reservoir Engineering with Apache Canada Inc. and Manager, Upstream Evaluations - Frontiers & International with Husky Energy. Mr. Trimble is an Alberta-registered Professional Engineer and a member of APEGA. He received a Bachelor of Science in Petroleum Engineering (with Distinction) from Stanford University.

• *Lawrence West, Vice President, Exploration*. Mr. West has been Gran Tierra's Vice President, Exploration, since May 2015. Mr. West has over 44 years of experience as an executive, explorationist, and geologist. Most recently, Mr. West was Vice President, Exploration at Caracal Energy from July 2011 to June 2014. Mr. West built a multi-disciplinary team to assess resources and grow reserves in the interior rift basins within Chad and led a successful exploration program. During his tenure he successfully executed two large 2D/3D seismic shoots in remote frontier basins, on time and on budget. Prior to Caracal he has been involved in starting and growing several public and private companies, including Reserve Royalty Corp., Chariot Energy, Auriga Energy and Orion Oil and Gas. Lawrence worked at Alberta Energy Company (AEC), where he was on the team that merged with Conwest. He built and led the AEC East team to the Rocky Mountain USA basins. His career began with Imperial Oil working on prospect and reservoir characterization, in multi-disciplinary teams, and as a technical mentor to exploration teams. Lawrence has an Honours Bachelor of Science in Geology from McMaster University and an MBA, specializing in economics, from the University of Calgary.

**PART II**

**Item 5. *Market for Registrant's Common Equity, Related Stockholder Matters and Issuer Purchases of Equity Securities***

Shares of our Common Stock trade on the NYSE American, the TSX and on the LSE under the symbol "GTE".

As of February 16, 2023, there were approximately 32 holders of record of shares of our Common Stock and 346,151,157 shares outstanding with $0.001 par value.

**Dividend Policy**

We have never declared or paid dividends on the shares of Common Stock and we intend to retain future earnings, if any, to support the development of the business and therefore do not anticipate paying cash dividends for the foreseeable future. Payment of future dividends, if any, would be at the discretion of our Board of Directors after taking into account various factors, including current financial condition, the tax impact of repatriating cash, operating results and current and anticipated cash needs.

**Issuer Purchases of Equity Securities**

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| | | | | |
|:---|:---|:---|:---|:---|
| | **(a) <br>Total Number of Shares Purchased** | **(b) <br>Average Price Paid per Share** <sup>(1)</sup> | **(c) Total Number of Shares Purchased as Part of Publicly Announced Plans or Programs** | **(d)** <br>**Maximum Number of Shares that May Yet be Purchased Under the Plans or Programs** <sup>(2)</sup> |
| October 1-31, 2022 |  | $— |  | 25300267 |
| November 1-30, 2022 | 4313006 | $1.31 | 4313006 | 20987261 |
| December 1-31, 2022 | 7700754 | $0.95 | 7700754 | 13286507 |
| **Total** | **12013760** | $**1.08** | **12013760** | **13286507** |

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<sup>(1)</sup> Including commission fees paid to the broker to re-purchase the Common Stock.

<sup>(2)</sup> On August 29, 2022, we implemented a share re-purchase program (the "2022 Program") through the facilities of the TSX and eligible alternative trading platforms in Canada commencing September 1, 2022 and ending on August 31, 2023. We will be able to purchase for cancellation at prevailing market prices up to 36,033,969 shares of Common Stock, representing approximately 10% of our issued and outstanding shares of Common Stock as of August 22, 2022.

**Performance Graph**

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The information in this Annual Report on Form 10-K appearing under the heading "Performance Graph" is being "furnished" pursuant to Item 201(e) of Regulation S-K under the securities Act and shall not be deemed to be "soliciting material" or "filed" with the SEC or subject to Regulation 14A or 14C, other than as provided in Item 201(e) of Regulation S-K, or to the liabilities of Section 18 of the Exchange Act and shall not be deemed incorporated by reference into any filing under the Securities Act or the Exchange Act except to the extent that we specifically incorporate it by reference into such filing.

The performance graph below shows the cumulative total shareholder return on our shares of the period starting on December 31, 2017, and ending on December 31, 2022, which was the end of our fiscal 2022 year. This is compared with the cumulative total returns over the same period of the S&P 500 Total Return Index and the S&P O&G E&P Select Index Total Return. The graph assumes that, on December 31, 2017, $100 was invested in our shares and $100 was invested in each of the other two indices, with dividends reinvested on the ex-dividend date without payment of any commissions. The performance shown in the graph represents past performance and should not considered an indication of future performance.

![gte-20221231_g2.jpg](gte-20221231_g2.jpg)

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| | | | | | | |
|:---|:---|:---|:---|:---|:---|:---|
| | 12/31/2017 | 12/31/2018 | 12/31/2019 | 12/31/2020 | 12/31/2021 | 12/31/2022 |
| Gran Tierra Energy Inc. (GTE) | $100.0 | $80.4 | $47.8 | $13.5 | $28.2 | $36.7 |
| S&P 500 Total Return (SPXT) | $100.0 | $95.6 | $125.7 | $148.9 | $191.6 | $156.9 |
| S&P O&G E&P Select Index Total Return (SPSIOPTR) | $100.0 | $72.0 | $65.4 | $41.5 | $69.5 | $101.3 |

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**Item 7. *Management's Discussion and Analysis of Financial Condition and Results of Operations***

*This report, and in particular this Management's Discussion and Analysis of Financial Condition and Results of Operations, contains forward-looking statements within the meaning of Section 27A of the Securities Act and Section 21E of the Exchange Act. Please see the cautionary language at the very beginning of this Annual Report on Form 10-K regarding the identification of and risks relating to forward-looking statements, as well as Part I, Item 1A. "Risk Factors" in this Annual Report on Form 10-K.*

*The following discussion of our financial condition and results of operations should be read in conjunction with the "Financial Statements and Supplementary Data" as set out in Part II, Item 8 of this Annual Report on Form 10-K. This Management's Discussion and Analysis of Financial Condition and Results of Operations generally discusses items related to the fiscal year ended December 31, 2022, and year-to-year comparisons between the fiscal years ended December 31, 2022, and 2021, respectively. Discussions of items related to the fiscal year ended December 31, 2021 and year-to-year comparisons between* 

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*the fiscal years ended December 31, 2021 and 2020, respectively, that are not included in this Annual Report on Form 10-K can be found in "Management's Discussion and Analysis of Financial Condition and Results of Operations" in Part II, Item 7 of the Company's Annual Report on Form 10-K for the fiscal year ended December 31, 2021.*

**Overview**

We are a company focused on international oil and gas exploration and production with assets currently in Colombia and Ecuador. Our Colombian properties represented 96% of our proved reserves NAR at December 31, 2022. For the year ended December 31, 2022, 100% of our revenue was generated in Colombia (2021 - 100% and 2020 -100%). We are headquartered in Calgary, Alberta, Canada.

As of December 31, 2022, we had estimated proved reserves NAR of 65.5 MMBOE, a 2% decrease from the prior year, of which 62% were proved developed reserves and 100% were oil.

**Financial and Operational Highlights**

***Key Highlights***

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;**•** Net income in 2022 was $139.0 million or $0.38 per share basic and diluted compared to a net income of $42.5 million or $0.12 per share basic and diluted in 2021

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;• Income before income taxes in 2022 was $244.9 million compared to $23.1 million in 2021

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;• Adjusted EBITDA<sup>(2)</sup> for 2022 was $489.6 million compared to $241.5 million in 2021

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;• Our total 2022 average production NAR was 23,815 bopd, an increase from 21,588 bopd in 2021 as a result of successful drilling and workover campaigns in Acordionero and Costayaco fields, less disruption from blockades compared to 2021, and production from exploration success in Ecuador

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;• Our total 2022 oil sales volumes NAR increased by 10% to 23,696 bopd compared to 21,598 bopd in 2021

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;• Oil sales for 2022 increased by 50% to $711.4 million compared to $473.7 million in 2021, primarily as a result of a 40% increase in Brent price, a 10% increase in sales volumes, partially offset by 55% higher quality and transportation discounts

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;• Oil sales per bbl for 2022 were $82.25, 37% higher compared to 2021, directly a result of increased benchmark pricing

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;***•*** In 2022, we generated net cash provided by operating activities of $427.7 million, an increase of 75% from $244.8 million in 2021

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;• Funds flow from operations<sup>(2)</sup> for 2022 increased by 96% to $366.0 million or $1.00 per share basic and $0.99 per share diluted compared with $186.5 million or $0.51 per share basic and diluted in 2021

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;• During 2022 the Company generated $129.4 million of free cash flow<sup>(2)</sup> which was used for debt reduction and share re-purchase

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;• Operating expenses per bbl for 2022 were $18.77, 9% higher than 2021, primarily as a result of higher workovers and higher power generation expense due to increased activities attributed to higher production and waterflood program in all major fields. Total operating expenses were $162.4 million in 2022, compared to $135.7 million in 2021, representing a 20% increase

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;• Quality and transportation discounts per bbl for 2022 were $16.79 compared to $10.86 in 2021. The increase was due to higher Castilla and Vasconia differentials in 2022 as a result of lower demand for heavy oil compared to 2021

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;• Transportation expenses per bbl for 2022 decreased by 20% to $1.18 compared to $1.48 in 2021, primarily due to higher volumes sold at wellhead during 2022

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;***•*** General and administrative ("G&A") expenses before stock-based compensation per bbl for 2022 increased by 5% to $3.69 compared to $3.53 for 2021 due to higher costs for optimization projects and lease obligations expenses in 2022. G&A expense before stock-based compensation was $31.9 million in 2022, compared to $27.9 million in 2021, representing a 15% increase

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;***•*** Capital expenditures increased by $86.7 million or 58% from the prior year to $236.6 million as a result drilling program in the Acordionero and Costayaco fields and exploration wells in Colombia and Ecuador

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| | | | | | |
|:---|:---|:---|:---|:---|:---|
| **(Thousands of U.S. Dollars, unless otherwise noted)** | **Year Ended December 31,** | **Year Ended December 31,** | **Year Ended December 31,** | **Year Ended December 31,** | **Year Ended December 31,** |
| **(Thousands of U.S. Dollars, unless otherwise noted)** | **2022** | **% Change** | **2021** | **% Change** | **2020** |
| **SEC Compliant Reserves, NAR (MMBOE)** |  |  |  |  |  |
| Estimated proved oil and gas reserves | **66** | (1) | 67 | 3 | 65 |
| Estimated probable oil and gas reserves | **36** |  | 36 | (18) | 44 |
| Estimated possible oil and gas reserves | **39** | 26 | 31 | (30) | 44 |
| **Average Consolidated Daily Volumes (BOPD)** |  |  |  |  |  |
| Working interest ("WI") production before royalties | **30746** | 16 | 26507 | 17 | 22624 |
| Royalties | **(6931)** | 41 | (4919) | 93 | (2552) |
| Production NAR | **23815** | 10 | 21588 | 8 | 20072 |
| (Increase) decrease in inventory | **(119)** | (1290) | 10 | (89) | 91 |
| Sales <sup>(1)</sup> | **23696** | 10 | 21598 | 7 | 20163 |
| **Net Income (Loss)** | $**139029** | 227 | $42482 | 105 | $(777967) |
| **Operating Netback** |  |  |  |  |  |
| Oil sales | $**711388** | 50 | $473722 | 99 | $237838 |
| Operating expenses | **(162385)** | 20 | (135722) | 19 | (114371) |
| Transportation expenses | **(10197)** | (12) | (11618) | 8 | (10739) |
| Operating netback <sup>(2)</sup> | $**538806** | 65 | $326382 | 190 | $112728 |
| **G&A Expenses Before Stock-Based Compensation** | $**31908** | 15 | $27867 | 15 | $24134 |
| **G&A Stock-Based Compensation** | $**9049** | 8 | $8396 | 590 | $1216 |
| **Adjusted EBITDA** <sup>(2)</sup> | $**489555** | 103 | $241536 | 150 | $96482 |
| **Net Cash Provided By Operating Activities** | $**427711** | 75 | $244834 | 202 | $81074 |
| **Funds Flow From Operations** <sup>(2)</sup> | $**366024** | 96 | $186485 | 312 | $45213 |
| **Capital Expenditures** | $**236604** | 58 | $149879 | 56 | $96281 |

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| | | | | | |
|:---|:---|:---|:---|:---|:---|
| | **As at December 31,** | **As at December 31,** | **As at December 31,** | **As at December 31,** | **As at December 31,** |
| **(Thousands of U.S. Dollars)** | **2022** | **% Change** | **2021** | **% Change** | **2020** |
| Cash and cash equivalents | $**126873** | 386 | $26109 | 91 | $13687 |
| Revolving credit facility | $**—** | (100) | $67500 | (64) | $190000 |
| Senior Notes | $**579909** | (3) | $600000 |  | $600000 |

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<sup>(1)</sup> Sales volumes represent production NAR adjusted for inventory changes

<sup>(2)</sup> Non-GAAP measures

Operating netback, adjusted EBITDA, funds flow from operations, and free cash flow are non-GAAP measures which do not have any standardized meaning prescribed under General Accepted Accounting Principles ("GAAP"). Management views these measures as financial performance measures. Investors are cautioned that these measures should not be construed as alternatives to net income or loss or other measures of financial performance as determined in accordance with GAAP. Our method of calculating these measures may differ from other companies and, accordingly, may not be comparable to similar measures used by other companies. Each non-GAAP financial measure is presented along with the corresponding GAAP measure so as not to imply that more emphasis should be placed on the non-GAAP measure.

Operating netback, as presented, is defined as oil sales less operating and transportation expenses. Management believes that operating netback is a useful supplemental measure for management and investors to analyze financial performance and provides an indication of the results generated by our principal business activities prior to the consideration of other income and expenses. A reconciliation from oil sales to operating netback is provided in the table above.

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EBITDA, as presented, is defined as net income or loss adjusted for depletion, depreciation and accretion ("DD&A") expenses, interest expense, and income tax expense or recovery. Adjusted EBITDA, as presented, is defined as EBITDA adjusted for asset impairment, goodwill impairment, non-cash lease expense, lease payments, unrealized foreign exchange gains or losses, unrealized derivative instruments gains or losses, other financial instruments gains or losses, other non-cash gains or losses, and stock-based compensation expense. Management uses this supplemental measure to analyze performance and income generated by our principal business activities prior to the consideration of how non-cash items affect that income and believes that this financial measure is a useful supplemental information for investors to analyze our performance and our financial results. A reconciliation from net income or loss to EBITDA and adjusted EBITDA is as follows:

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| | | | | | | |
|:---|:---|:---|:---|:---|:---|:---|
| | **Year Ended** | **Year Ended** | **Year Ended** | **Three Months Ended** | **Three Months Ended** | **Three Months Ended** |
| | **December 31,** | **December 31,** | **December 31,** | **December 31,** | **December 31,** | **September 30,** |
| **(Thousands of U.S. Dollars)** | **2022** | **2021** | **2020** | **2022** | **2021** | **2022** |
| **Net income (loss)** | $**139029** | $42482 | $(777967) | $**33275** | $62524 | $38663 |
| Adjustments to reconcile net income (loss) to EBITDA and Adjusted EBITDA |  |  |  |  |  |  |
| &nbsp;&nbsp;DD&A expenses | **180280** | 139874 | 164233 | **51781** | 41574 | 45320 |
| &nbsp;&nbsp;Interest expense | **46493** | 54381 | 54140 | **10750** | 13026 | 11421 |
| &nbsp;&nbsp;Income tax expense (recovery) | **105906** | (19346) | (75394) | **5966** | (46141) | 21734 |
| **EBITDA (non-GAAP)** | $**471708** | $217391 | $(634988) | $**101772** | $70983 | $117138 |
| &nbsp;&nbsp;Asset impairment | **—** |  | 564495 | **—** |  |  |
| &nbsp;&nbsp;Goodwill impairment | **—** |  | 102581 | **—** |  |  |
| &nbsp;&nbsp;&nbsp;Non-cash lease expense | **2818** | 1667 | 1951 | **809** | 445 | 851 |
| &nbsp;&nbsp;&nbsp;Lease payments | **(1666)** | (1621) | (1926) | **(532)** | (382) | (402) |
| &nbsp;&nbsp;Unrealized foreign exchange loss | **10251** | 21879 | 5271 | **4113** | 4934 | 6636 |
| &nbsp;&nbsp;Unrealized derivative instruments (gain) loss | **—** | (9589) | 7809 | **—** | (12088) | (219) |
| &nbsp;&nbsp;Other financial instruments (gain) loss | **(7)** | 3369 | 48047 | **(7)** | 15794 |  |
| &nbsp;&nbsp;Other non-cash (gain) loss | **(2598)** | 44 | 2026 | **—** | 44 | (2598) |
| &nbsp;&nbsp;Stock-based compensation expense (recovery) | **9049** | 8396 | 1216 | **2673** | 1799 | (170) |
| **Adjusted EBITDA (non-GAAP)** | $**489555** | $241536 | $96482 | $**108828** | $81529 | $121236 |

---

Funds flow from operations, as presented, is defined as net income or loss adjusted for DD&A expenses, asset impairment, goodwill impairment, deferred tax expense or recovery, stock-based compensation expense or recovery, amortization of debt issuance costs, non-cash lease expense, lease payments, unrealized foreign exchange gains or losses, unrealized derivative instruments gains or losses, other financial instruments gains or losses, and other non-cash gains or losses. Management uses this financial measure to analyze performance and income or loss generated by our principal business activities prior to the consideration of how non-cash items affect that income or loss, and believes that this financial measure is also useful supplemental information for investors to analyze performance and our financial results. Free cash flow, as presented, is defined as funds flow less capital expenditures. Management uses this financial measure to analyze cash flow generated by our principal business activities after capital requirements and believes that this financial measure is also useful supplemental information for investors to analyze performance and our financial results. A reconciliation from net income or loss to funds flow from operations and free cash flow is as follows:

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---

| | | | | | | |
|:---|:---|:---|:---|:---|:---|:---|
| | **Year Ended** | **Year Ended** | **Year Ended** | **Three Months Ended,** | **Three Months Ended,** | **Three Months Ended,** |
| | **December 31,** | **December 31,** | **December 31,** | **December 31,** | **December 31,** | **September 30,** |
| **(Thousands of U.S. Dollars)** | **2022** | **2021** | **2020** | **2022** | **2021** | **2022** |
| Net income (loss) | $**139029** | $42482 | $(777967) | $**33275** | $62524 | $38663 |
| Adjustments to reconcile net income (loss) to funds flow from operations |  |  |  |  |  |  |
| &nbsp;&nbsp;&nbsp;DD&A expenses | **180280** | 139874 | 164233 | **51781** | 41574 | 45320 |
| &nbsp;&nbsp;&nbsp;Asset impairment | **—** |  | 564495 | **—** |  |  |
| &nbsp;&nbsp;&nbsp;Goodwill impairment | **—** |  | 102581 | **—** |  |  |
| &nbsp;&nbsp;&nbsp;Deferred tax expense (recovery) | **25340** | (23825) | (76148) | **(11528)** | (50634) | 4914 |
| &nbsp;&nbsp;&nbsp;Stock-based compensation expense (recovery) | **9049** | 8396 | 1216 | **2673** | 1799 | (170) |
| &nbsp;&nbsp;&nbsp;Amortization of debt issuance costs | **3528** | 3809 | 3625 | **759** | 1127 | 751 |
| &nbsp;&nbsp;&nbsp;Non-cash lease expense | **2818** | 1667 | 1951 | **809** | 445 | 851 |
| &nbsp;&nbsp;&nbsp;Lease payments | **(1666)** | (1621) | (1926) | **(532)** | (382) | (402) |
| &nbsp;&nbsp;Unrealized foreign exchange loss | **10251** | 21879 | 5271 | **4113** | 4934 | 6636 |
| &nbsp;&nbsp;&nbsp;Unrealized derivative instruments (gain) loss | **—** | (9589) | 7809 | **—** | (12088) | (219) |
| &nbsp;&nbsp;Other financial instruments (gain) loss | **(7)** | 3369 | 48047 | **(7)** | 15794 |  |
| &nbsp;&nbsp;&nbsp;Other non-cash (gain) loss | **(2598)** | 44 | 2026 | **—** | 44 | (2598) |
| **Funds flow from operations (non-GAAP)** | $**366024** | $186485 | $45213 | $**81343** | $65137 | $93746 |
| &nbsp;&nbsp;Capital expenditures | $**236604** | $149879 | $96281 | $**72887** | $40229 | $57035 |
| **Free cash flow (non-GAAP)** | $**129420** | $36606 | $(51068) | $**8456** | $24908 | $36711 |

---

**Consolidated Results of Operations**

---

| | | | | | |
|:---|:---|:---|:---|:---|:---|
| | **Year Ended December 31,** | **Year Ended December 31,** | **Year Ended December 31,** | **Year Ended December 31,** | **Year Ended December 31,** |
| **(Thousands of U.S. Dollars)** | **2022** | **% Change** | **2021** | **% Change** | **2020** |
| Oil sales | $**711388** | 50 | $473722 | 99 | $237838 |
| Operating expenses | **162385** | 20 | 135722 | 19 | 114371 |
| Transportation expenses | **10197** | (12) | 11618 | 8 | 10739 |
| Operating netback <sup>(1)</sup> | **538806** | 65 | 326382 | 190 | 112728 |
| DD&A expenses | **180280** | 29 | 139874 | (15) | 164233 |
| Asset impairment | **—** |  |  | (100) | 564495 |
| Goodwill Impairment | **—** |  |  | (100) | 102581 |
| G&A expenses before stock-based compensation | **31908** | 15 | 27867 | 15 | 24134 |
| G&A stock-based compensation expense | **9049** | 8 | 8396 | 590 | 1216 |
| Foreign exchange loss | **2578** | (87) | 20477 | 389 | 4184 |
| Derivative instruments loss | **26611** | (46) | 48838 | 1564 | 2935 |
| Other financial instruments (gain) loss | **(7)** | (100) | 3369 | (93) | 48047 |
| Interest expense | **46493** | (15) | 54381 |  | 54140 |
|  | **296912** | (2) | 303202 | (69) | 965965 |
| Other gain (loss) | **2598** | (6005) | (44) | (91) | (469) |
| Interest income | **443** | 100 |  | (100) | 345 |
| Income (loss) before income taxes | **244935** | 959 | 23136 | 103 | (853361) |

---

------

---

| | | | | | |
|:---|:---|:---|:---|:---|:---|
| Current income tax expense | **80566** | 1699 | 4479 | 494 | 754 |
| Deferred income tax expense (recovery) | **25340** | 206 | (23825) | 69 | (76148) |
| Total income tax expense (recovery) | **105906** | 647 | (19346) | 74 | (75394) |
| Net income (loss) | $**139029** | 227 | $42482 | 105 | $(777967) |
| **Sales Volumes (NAR)** |  |  |  |  |  |
| Total sales volumes, BOPD | **23696** | 10 | 21598 | 7 | 20163 |
| **Brent Price per bbl** | $**99.04** | 40 | $70.95 | 64 | $43.21 |
| **Consolidated Results of Operations per bbl Sales Volumes (NAR)** |  |  |  |  |  |
| Oil sales | $**82.25** | 37 | $60.09 | 86 | $32.23 |
| Operating expenses | **18.77** | 9 | 17.22 | 11 | 15.50 |
| Transportation expenses | **1.18** | (20) | 1.48 | 2 | 1.45 |
| Operating netback <sup>(1)</sup> | **62.30** | 51 | 41.39 | 171 | 15.28 |
| DD&A expenses | **20.84** | 17 | 17.74 | (20) | 22.25 |
| Asset impairment | **—** |  |  | (100) | 76.49 |
| Goodwill Impairment | **—** |  |  | (100) | 13.90 |
| G&A expenses before stock-based compensation | **3.69** | 5 | 3.53 | 8 | 3.27 |
| G&A stock-based compensation expense | **1.05** | (2) | 1.07 | 569 | 0.16 |
| Foreign exchange loss | **0.30** | (88) | 2.60 | 356 | 0.57 |
| Derivative instruments loss | **3.08** | (50) | 6.19 | 1448 | 0.40 |
| Other financial instruments (gain) loss | **—** | (100) | 0.43 | (93) | 6.51 |
| Interest expense | **5.38** | (22) | 6.90 | (6) | 7.34 |
|  | **34.34** | (11) | 38.46 | (71) | 130.89 |
| Other gain (loss) | **0.30** | (3100) | (0.01) | (83) | (0.06) |
| Interest income | **0.05** | 100 |  | (100) | 0.05 |
| Income (loss) before income taxes | **28.31** | 870 | 2.92 | 103 | (115.62) |
| Current income tax expense | **9.31** | 1533 | 0.57 | 470 | 0.10 |
| Deferred income tax expense (recovery) | **2.93** | 197 | (3.02) | 71 | (10.32) |
| Total income tax expense (recovery) | **12.24** | 600 | (2.45) | 76 | (10.22) |
| Net income (loss) | $**16.07** | 199 | $5.37 | 105 | $(105.40) |

---

<sup>(1)</sup> Operating netback is a non-GAAP measure which does not have any standardized meaning prescribed under GAAP. Refer to "Financial and Operational Highlights - Non-GAAP measures" for a definition and reconciliation of this measure.

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**Oil Production and Sales Volumes, BOPD**

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| | | | |
|:---|:---|:---|:---|
| | **Year Ended December 31,** | **Year Ended December 31,** | **Year Ended December 31,** |
| **Average Daily Volumes (BOPD)** | **2022** | **2021** | **2020** |
| WI production before royalties | **30746** | 26507 | 22624 |
| Royalties | **(6931)** | (4919) | (2552) |
| Production NAR | **23815** | 21588 | 20072 |
| (Increase) decrease in inventory | **(119)** | 10 | 91 |
| Sales | **23696** | 21598 | 20163 |
| Royalties, % of working interest production before royalties | **23%** | 19% | 11% |

---

***Oil production NAR*** for the year ended December 31, 2022, increased by 10% to 23,815 BOPD from 2021. Production increased due to successful drilling and workover campaigns in the Acordionero and Costayaco fields, less disruption from blockades in Suroriente and Put-7 Blocks, and production from exploration success in Ecuador.

Royalties as a percentage of production for the year ended December 31, 2022, increased compared to prior year commensurate with the increase in benchmark oil prices and the price sensitive royalty regime in Colombia.

Oil production NAR for the year ended December 31, 2021, increased by 8% to 21,588 BOPD compared to 20,072 BOPD in 2020. Production increased as a result of successful drilling and workover campaigns in Acordionero and Costayaco fields, despite national blockades in the second quarter of 2021 affecting production from major fields, and a local farmers blockade affecting the Suroriente Block in the fourth quarter of 2021.

![gte-20221231_g3.jpg](gte-20221231_g3.jpg)

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![gte-20221231_g4.jpg](gte-20221231_g4.jpg)

The Midas Block includes Acordionero, Gaitas, and Ayombero-Chuira fields and the Chaza Block includes Costayaco and Moqueta fields.

**Oil Sales**

***Oil sales*** for the year ended December 31, 2022, increased by 50% to $711.4 million compared to $473.7 million in 2021, primarily as a result of a 40% increase in Brent price and 10% higher sales volumes partially offset by 55% higher quality and transportation discounts in 2022. Castilla and Vasconia differentials increased to $9.81 and $4.99 from $5.74 and $3.52 per bbl in 2021.

On a per bbl basis, average realized prices increased by 37% to $82.25 for the year ended December 31, 2022, compared to $60.09 in 2021, primarily as a result of the increase in benchmark oil prices, offset by higher Castilla and Vasconia differentials in 2022.

Oil sales for the year ended December 31, 2021, increased by 99% to $473.7 million compared to $237.8 million in 2020, primarily as a result of a 64% increase in Brent price, 7% higher sales volumes, and lower quality and transportation discounts in 2021.

On a per bbl basis, average realized prices increased by 86% to $60.09 for the year ended December 31, 2021, compared to $32.23 in 2020, primarily as a result of the increase in benchmark oil prices and lower Castilla and Vasconia differentials in 2021. In 2021 the Castilla and Vasconia differentials per bbl averaged $5.74 and $3.52, respectively compared to $6.79 and $4.31 in 2020.

The following table shows the effect of changes in realized price and sales volumes on our oil sales for the years ended December 31, 2022, 2021, and 2020:

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| | | | |
|:---|:---|:---|:---|
| | **Year Ended December 31,** | **Year Ended December 31,** | **Year Ended December 31,** |
| **(Thousands of U.S. Dollars)** | **2022** | **2021** | **2020** |
| Oil sales for the comparative year | $**473722** | $237838 | $570983 |
| Realized sales price increase (decrease) effect | **191664** | 219641 | (158334) |
| Sales volume increase (decrease) effect | **46002** | 16243 | (174811) |
| Oil sales for the current year | $**711388** | $473722 | $237838 |

---

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**Operating Expenses**

***Operating expenses*** for the year ended December 31, 2022, increased by 20% to $162.4 million compared to $135.7 million in 2021. On a per bbl basis, operating expenses increased by 9% or $1.55 to $18.77 compared to $17.22 in the prior year, primarily as a result of $0.48 per bbl higher workovers and $1.07 per bbl higher lifting costs mainly attributed to higher power generation due to increased activities attributed to higher production and waterflood program in all major fields.

Operating expenses for the year ended December 31, 2021, increased by 19% to $135.7 million compared to $114.4 million in 2020. On a per bbl basis, operating expenses increased by 11% or $1.72 to $17.22 compared to $15.50 in 2020, primarily due to $1.03 per bbl higher workover activities related to changes of electric submersible pumps in Acordionero, Costayaco, and Cohembi fields. The increased workover activities were partly related to restoring wells that failed in 2020 and were brought back online in 2021. Lower operating activities in 2020 were attributed to the shut-in of higher cost wells in response to the low oil price environment attributed to low demand for oil caused by the COVID-19 pandemic.

![gte-20221231_g5.jpg](gte-20221231_g5.jpg)

**Transportation Expenses**

We have options to sell our oil through multiple pipelines and trucking routes. Each transportation route has varying effects on realized price and transportation expenses. The following table shows the percentage of oil volumes we sold in Colombia using each transportation method for each of the three years ended December 31, 2022:

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| | | | |
|:---|:---|:---|:---|
| | **Year Ended December 31,** | **Year Ended December 31,** | **Year Ended December 31,** |
| | **2022** | **2021** | **2020** |
| Volume transported through pipelines | **— %** | 12% | 4% |
| Volume sold at wellhead | **47%** | 34% | 48% |
| Volume transported via truck to pipelines | **53%** | 54% | 48% |
|  | **100%** | 100% | 100% |

---

Volumes transported through pipelines or via trucks receive a higher realized price but incur higher transportation expenses. Volumes sold at the wellhead have the opposite effect of lower realized price, offset by lower transportation expense. We focus on maximizing operating netback<sup>(1)</sup> per bbl when choosing a transportation method.

***Transportation expenses*** for the year ended December 31, 2022, decreased by 12% to $10.2 million, compared to $11.6 million in 2021 as a result of higher volumes sold at wellhead during 2022. On a per bbl basis, transportation expenses decreased 20%

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to $1.18 from $1.48 in 2021. The decrease in transportation expenses per bbl was a result of higher volumes sold at wellhead and higher sales volumes in 2022 compared to the corresponding period of 2021. In addition, during 2021, alternative transportation routes were utilized due to maintenance of the Impala terminal, which had higher transportation costs per bbl.

Transportation expenses for the year ended December 31, 2021, increased by 8% to $11.6 million, compared to $10.7 million in 2020, as a result of lower volumes sold at wellhead during 2021. On a per bbl basis, transportation expenses increased 2% to $1.48 from $1.45 in 2020. The increase in transportation expenses per bbl was a result of the lower volumes sold at the wellhead in 2021 and utilization of alternative transportation routes due to maintenance of Impala terminal resulting in slightly higher transportation expenses per bbl compared to the corresponding period of 2020.

![gte-20221231_g6.jpg](gte-20221231_g6.jpg)

<sup>(1)</sup> Operating netback is a non-GAAP measure which does not have any standardized meaning prescribed under GAAP. Refer to "Financial and Operational Highlights - Non-GAAP measures" for a definition and reconciliation of this measure.

The following table shows the variance in our average realized price net of transportation expenses in Colombia for each of the three years ended December 31, 2022:

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| | | | |
|:---|:---|:---|:---|
| | **Year Ended December 31,** | **Year Ended December 31,** | **Year Ended December 31,** |
| **(U.S. Dollars per bbl Sales Volumes NAR)** | **2022** | **2021** | **2020** |
| Average Brent price | $**99.04** | $70.95 | $43.21 |
| Average realized price, net of transportation expenses for the comparative period | $**58.61** | $30.78 | $51.76 |
| Increase (decrease) in benchmark prices | **28.09** | 27.74 | (20.95) |
| (Increase) decrease in quality and transportation discounts | **(5.93)** | 0.12 | (0.50) |
| Decrease (increase) in transportation expense | **0.30** | (0.03) | 0.47 |
| Average realized price, net of transportation expenses for the year | $**81.07** | $58.61 | $30.78 |

---

------

**Operating Netbacks**

---

| | | | |
|:---|:---|:---|:---|
| | **Year Ended December 31,** | **Year Ended December 31,** | **Year Ended December 31,** |
| **Consolidated** | **2022** | **2021** | **2020** |
| **(Thousands of U.S. Dollars)** |  |  |  |
| Oil sales | $**711388** | $473722 | $237838 |
| Transportation expenses | **(10197)** | (11618) | (10739) |
|  | **701191** | 462104 | 227099 |
| Operating expenses | **(162385)** | (135722) | (114371) |
| Operating netback <sup>(1)</sup> | $**538806** | $326382 | $112728 |
| **(U.S. Dollars per bbl Sales Volumes NAR)** |  |  |  |
| Brent | $**99.04** | $70.95 | $43.21 |
| Quality and transportation discounts | **(16.79)** | (10.86) | (10.98) |
| Average realized price | **82.25** | 60.09 | 32.23 |
| Transportation expenses | **(1.18)** | (1.48) | (1.45) |
| Average realized price, net of transportation expenses | **81.07** | 58.61 | 30.78 |
| Operating expenses | **(18.77)** | (17.22) | (15.50) |
| Operating netback <sup>(1)</sup> | $**62.30** | $41.39 | $15.28 |

---

<sup>(1)</sup> Operating netback is a non-GAAP measure which does not have any standardized meaning prescribed under GAAP. Refer to "Financial and Operational Highlights - Non-GAAP measures" for a definition and reconciliation of this measure.

![gte-20221231_g7.jpg](gte-20221231_g7.jpg)

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![gte-20221231_g8.jpg](gte-20221231_g8.jpg)

![gte-20221231_g9.jpg](gte-20221231_g9.jpg)

**DD&A Expenses**

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| | | | |
|:---|:---|:---|:---|
| | **Year Ended December 31,** | **Year Ended December 31,** | **Year Ended December 31,** |
| | **2022** | **2021** | **2020** |
| **DD&A Expenses, Thousands of U.S. Dollars** | $**180280** | $139874 | $164233 |
| **DD&A Expenses, U.S. Dollars per bbl** | $**20.84** | $17.74 | $22.25 |

---

------

DD&A expenses for the year ended December 31, 2022, increased by 29% or $3.10 per bbl from 2021. On a per bbl basis, the DD&A increase in 2022 was due to increased production and higher costs in the depletable base compared to 2021.

DD&A expenses for the year ended December 31, 2021, decreased 15% or $4.51 per bbl from 2020. On a per bbl basis, the DD&A decrease in 2021 was due to proportionally higher proved reserves compared to 2020.

**Asset Impairment**

---

| | | | |
|:---|:---|:---|:---|
| | **Year Ended December 31,** | **Year Ended December 31,** | **Year Ended December 31,** |
| **(Thousands of U.S. Dollars)** | **2022** | **2021** | **2020** |
| Impairment of oil and gas properties | $**—** | $— | $560344 |
| Impairment of inventory | **—** |  | 4151 |
|  | $**—** | $— | $564495 |

---

We follow the full cost method of accounting for our oil and gas properties. Under this method, the net book value of properties on a country-by-country basis, less related deferred income taxes, may not exceed a calculated "ceiling". The ceiling is the estimated after-tax future net revenues from proved oil and gas properties, discounted at 10% per year. In calculating discounted future net revenues, oil and natural gas prices are determined using the average price during the 12-month period prior to the ending date of the period covered by the balance sheet, calculated as an unweighted arithmetic average of the first day-of-the-month price for each month within such period for that oil and natural gas. That average price is then held constant, except for changes which are fixed and determinable by existing contracts. Therefore, ceiling test estimates are based on historical prices discounted at 10% per year, and it should not be assumed that estimates of future net revenues represent the fair market value of our reserves.

For the years ended December 31, 2022, and 2021, no ceiling test impairment losses were recorded. For the year ended December 31, 2020, we recorded $560.3 million of ceiling test impairment loss. In accordance with GAAP, we used an average Brent price of $97.98 per bbl less corresponding differentials for the purpose of the December 31, 2022 ceiling test calculation (2021 and 2020 - $68.92 and $43.43 per bbl, respectively).

For the years ended December 31, 2022, and 2021, we had no oil inventory impairment losses. There were $4.2 million of inventory impairment losses recorded for the year ended December 31, 2020.

**Goodwill Impairment**

The entire goodwill balance of $102.6 million was impaired during the year ended December 31, 2020.

**G&A Expenses**

---

| | | | | | |
|:---|:---|:---|:---|:---|:---|
| **(Thousands of U.S. Dollars)** | **Year Ended December 31,** | **Year Ended December 31,** | **Year Ended December 31,** | **Year Ended December 31,** | **Year Ended December 31,** |
| **(Thousands of U.S. Dollars)** | **2022** | **% change** | **2021** | **% change** | **2020** |
| G&A expenses before stock-based compensation | $**31908** | 15 | $27867 | 15 | $24134 |
| G&A stock-based compensation | **9049** | 8 | 8396 | 590 | 1216 |
| G&A expenses including stock-based compensation | $**40957** | 13 | $36263 | 43 | $25350 |
| **(U.S. Dollars Per bbl Sales Volumes NAR)** |  |  |  |  |  |
| G&A expenses before stock-based compensation | $**3.69** | 5 | $3.53 | 8 | $3.27 |
| G&A stock-based compensation | **1.05** | (2) | 1.07 | 569 | 0.16 |
| G&A expenses including stock-based compensation | $**4.74** | 3 | $4.60 | 34 | $3.43 |

---

On a per bbl basis, ***G&A expenses before stock-based compensation*** increased by 5% to $3.69 per bbl due to higher costs for optimization projects and lease obligations expenses related to additional leases capitalized during 2022. Total G&A expenses before stock-based compensation for the year ended December 31, 2022, increased 15% to $31.9 million compared to 2021 for the same reason mentioned above.

G&A expenses before stock-based compensation for the year ended December 31, 2021, increased 15% to $27.9 million or 8% to $3.53 per bbl compared to 2020 due to 2021 performance bonus, which was slightly offset by lower travel, information technology, consulting, and legal expenses.

------

On per bbl basis, ***G&A expenses after stock-based compensation*** for the year ended December 31, 2022, increased 3% to $4.74 per bbl compared to 2021 for the same reason mentioned above and higher stock-based compensation expense. Stock-based compensation per bbl decreased by 2% due to higher sales volumes in proportion to increase in stock-based compensation expense in 2022. Total G&A expenses after stock-based compensation increased 13% to $41.0 million due to higher stock-based compensation expense for the year ended December 31, 2022 compared to 2021.

G&A expenses after stock-based compensation costs for the year ended December 31, 2021, increased 43% to $36.3 million, or 34% to $4.60 per bbl due to higher stock-based compensation costs as a result of higher share price when compared to 2020.

![gte-20221231_g10.jpg](gte-20221231_g10.jpg)

**Foreign Exchange Losses**

For the years ended December 31, 2022, 2021 and 2020, we had foreign exchange losses of $2.6 million, $20.5 million and $4.2 million, respectively. The main sources of foreign exchange gains and losses are the revaluation of taxes receivable and payable, deferred tax assets and Prepaid Equity Forward ("PEF"). Under GAAP, income taxes, deferred taxes, and PEF are considered monetary assets and liabilities and require translation from local currency to U.S. dollar functional currency at each balance sheet date.

The following table presents the change in the Colombian peso and Canadian dollar against the U.S. dollar for the last three years ended December 31, 2022:

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| | | | |
|:---|:---|:---|:---|
| | **Year Ended December 31,** | **Year Ended December 31,** | **Year Ended December 31,** |
| | **2022** | **2021** | **2020** |
| Change in the Colombian peso against the U.S. dollar | **weakened by** | weakened by | weakened by |
|  | **21%** | 16% | 5% |
| Change in the Canadian dollar against the U.S. dollar | **weakened by** | consistent | strengthened by |
|  | **7%** | —% | 2% |

---

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**Financial Instruments Gains or Losses**

The following table presents the nature of our financial instruments gains or losses for each of the three years ended December 31, 2022:

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| | | | |
|:---|:---|:---|:---|
| | **Year Ended December 31,** | **Year Ended December 31,** | **Year Ended December 31,** |
| **(Thousands of U.S. Dollars)** | **2022** | **2021** | **2020** |
| Commodity price derivative loss (gain) | $**26611** | $48723 | $(220) |
| Foreign currency derivative loss | **—** | 115 | 3155 |
|  | $**26611** | $48838 | $2935 |
| Unrealized investment loss | $**—** | $2032 | $46883 |
| Loss on sale of investment | **—** | 1355 |  |
| Financial instruments (gain) loss | **(7)** | (18) | 1164 |
|  | $**(7)** | $3369 | $48047 |

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**Income Tax Expense and Recovery**

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| | | | |
|:---|:---|:---|:---|
| | **Year Ended December 31,** | **Year Ended December 31,** | **Year Ended December 31,** |
| **(Thousands of U.S. Dollars)** | **2022** | **2021** | **2020** |
| Income (loss) before income taxes | $**244935** | $23136 | $(853361) |
| Current income tax expense | $**80566** | $4479 | $754 |
| Deferred income tax expense (recovery) | **25340** | (23825) | (76148) |
| Total income tax expense (recovery) | $**105906** | $(19346) | $(75394) |
| Effective tax rate | **43%** | (84)% | 9% |

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Current income tax expense for the year ended December 31, 2022, was $80.6 million (2021 - $4.5 million; 2020 - $0.8 million). Current income tax expense increased for the year ended December 31, 2022, compared to 2021, primarily due to an increase in taxable income.

The deferred income tax expense of $25.3 million for the year ended December 31, 2022, was mainly the result of tax depreciation being higher than accounting depreciation and the use of tax losses to offset taxable income in Colombia.

The deferred income tax recovery of $23.8 million for the year ended December 31, 2021, was mainly a result of the release of the valuation allowance in Colombia, which was partially offset by excess tax depreciation compared with accounting depreciation and the use of tax losses to offset taxable income in Colombia. The deferred income tax recovery of $76.1 million for the year ended December 31, 2020, was primarily a result of an impairment write-down in Colombia, which was partially offset by Colombian tax losses that were fully offset by a valuation allowance.

Our effective tax rate was 43% for the year ended December 31, 2022, compared with (84)% in 2021. The increase in the effective tax rate was primarily due to an increase in valuation allowance, other permanent differences, stock-based compensation costs, and non-deductible third party royalties in Colombia. These were slightly offset by a decrease foreign currency translation adjustment and the impact of foreign taxes.

Our effective tax rate was (84)% for the year ended December 31, 2021, compared with 9% in 2020. The decrease in the effective tax rate was primarily due to non-deductible goodwill impairment in 2020 and a decrease in the valuation allowance, foreign currency translation adjustment, the impact of foreign taxes, other permanent differences, and non-deductible investment loss on PetroTal. These were slightly offset by an increase in stock-based compensation costs and non-deductible third party royalties in Colombia.

The difference between our effective tax rate of 43% for the year ended December 31, 2022, and the 35% Colombian statutory rate was primarily due to $26.6 million of hedging loss, $46.5 million of financing cost mainly related to the senior notes, and $23.1 million of stock-based compensation and G&A cost, which were incurred in jurisdictions where no tax benefit is recognized. These were partially offset by $13.2 million of non-taxable foreign exchange gain.

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The difference between our effective tax rate of (84)% for the year ended December 31, 2021, and the 31% Colombian statutory was primarily due to a decrease in the valuation allowance and other permanent differences, which were partially offset by an increase in foreign currency translation adjustment, foreign taxes, stock-based compensation costs, non-deductible third party royalties in Colombia, and non-deductible investment loss on PetroTal.

The difference between our effective tax rate of 9% for the year ended December 31, 2020, and the 32% Colombian statutory rate was primarily due to an increase in the valuation allowance, foreign currency translation adjustment, non-deductible goodwill impairment, and foreign taxes.

Our estimated tax pools at December 31, 2022, were as follows:

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| | |
|:---|:---|
| **(Thousands of U.S. Dollars)** | **2022** |
| **Colombia** |  |
| &nbsp;&nbsp;&nbsp;Non-capital losses and other tax credits | $40788 |
| &nbsp;&nbsp;&nbsp;Depletable and depreciable assets | 624940 |
| **Total tax pools and credits** | $**665728** |
| **Ecuador** |  |
| &nbsp;&nbsp;&nbsp;Depletable and depreciable assets | $46696 |
| **Total tax pools and credits** | $**712424** |

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**Net Income and Funds Flow From Operations (a Non-GAAP Measure)**

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| | | | | | | |
|:---|:---|:---|:---|:---|:---|:---|
| **(Thousands of U.S. Dollars)** | **Fourth quarter 2022 compared with third quarter 2022** | **% change** | **Fourth quarter 2022 compared with fourth quarter 2021** | **% change** | **Year ended December 31, 2022 compared with year ended December 31, 2021** | **% change** |
| Net income for the comparative period | $38663 |  | $62524 |  | $42482 |  |
| **Increase (decrease) due to:** |  |  |  |  |  |  |
| Sales volumes | 15363 |  | 11600 |  | 46002 |  |
| Prices | (21123) |  | 4750 |  | 191664 |  |
| **Expenses:** |  |  |  |  |  |  |
| &nbsp;&nbsp;Cash operating expenses | (4282) |  | (5763) |  | (26663) |  |
| &nbsp;&nbsp;Transportation | (16) |  | 454 |  | 1421 |  |
| &nbsp;&nbsp;Cash G&A, excluding stock-based compensation expense | 286 |  | 475 |  | (4041) |  |
| &nbsp;&nbsp;Interest, net of amortization of debt issuance costs | 679 |  | 1908 |  | 7607 |  |
| &nbsp;&nbsp;Realized foreign exchange (loss) gain | (3126) |  | 1740 |  | 6271 |  |
| &nbsp;&nbsp;Settlement of financial instruments | 219 |  | 13386 |  | 31816 |  |
| &nbsp;&nbsp;Current taxes | (674) |  | (13001) |  | (76087) |  |
| &nbsp;&nbsp;Net lease payments | (172) |  | 214 |  | 1106 |  |
| &nbsp;&nbsp;Interest income | 443 |  | 443 |  | 443 |  |
| Net change in funds flow from operations <sup>(1)</sup> from comparative period | (12403) |  | 16206 |  | 179539 |  |
| **Expenses:** |  |  |  |  |  |  |
| &nbsp;&nbsp;Depletion, depreciation and accretion | (6461) |  | (10207) |  | (40406) |  |
| &nbsp;&nbsp;Deferred tax | 16442 |  | (39106) |  | (49165) |  |
| &nbsp;&nbsp;Amortization of debt issuance costs | (8) |  | 368 |  | 281 |  |
| &nbsp;&nbsp;Net lease payments | 172 |  | (214) |  | (1106) |  |
| &nbsp;&nbsp;Stock-based compensation | (2843) |  | (874) |  | (653) |  |
| &nbsp;&nbsp;Other non-cash (loss) gain | (2598) |  | 44 |  | 2642 |  |
| &nbsp;&nbsp;Financial instruments (loss) gain, net of financial instruments settlements | (212) |  | 3713 |  | (6213) |  |
| &nbsp;&nbsp;Unrealized foreign exchange loss | 2523 |  | 821 |  | 11628 |  |
| Net change in net income | (5388) |  | (29249) |  | 96547 |  |
| Net income for the current period | $33275 | (14)% | $33275 | (47)% | $139029 | 227% |

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<sup>(1)</sup> Funds flow from operations is a non-GAAP measure which does not have any standardized meaning prescribed under GAAP. Refer to "Financial and Operational Highlights - Non-GAAP measures" for a definition and reconciliation of this measure.

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**2023 Work Program and Capital Expenditures**

Our Colombian development operation is expected to represent 95% of our production and approximately 70% of our 2023 capital budget, with the remainder allocated to exploration activities.

The table below shows the break-down of our 2023 capital program:

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| | | |
|:---|:---|:---|
| | **Number of Wells<br>(Gross and Net)** | **2023 Capital Budget<br>($ million)** |
| &nbsp;&nbsp;Development - Colombia | 18 - 23 | 150 - 170 |
| &nbsp;&nbsp;Exploration - Colombia and Ecuador | 4 - 6 | 60 - 80 |
|  | 22 - 29 | 210-250 |

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Our base capital program for 2023 is $210 million to $250 million for exploration and development activities. Based on the mid-point of the 2023 guidance, the capital budget is forecasted to be approximately 70% directed to the development and 30% to exploration activities. Approximately 15% of the development activities included in the 2023 capital program are expected to be directed to facilities.

We expect our 2023 capital program to be fully funded by cash flows from operations. Funding this program from cash flow from operations relies in part on Brent oil prices being at least $60 per bbl for 2023.

**Capital Program**

Capital expenditures during the year ended December 31, 2022 were $236.6 million.

During the year ended December 31, 2022, we spud the following wells in Colombia and Ecuador:

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| | |
|:---|:---|
| | **Number of Wells <br>(Gross and Net)** |
| Colombia |  |
| &nbsp;&nbsp;&nbsp;Development | 20.0 |
| &nbsp;&nbsp;&nbsp;Exploration | 4.0 |
| &nbsp;&nbsp;&nbsp;Service | 8.0 |
|  | 32.0 |
| Ecuador |  |
| &nbsp;&nbsp;&nbsp;Exploration | 2.0 |
|  | 2.0 |
| Total Company | 34.0 |

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In 2022 we spud 20 development, four exploration and eight service wells in Colombia and two exploration wells in Ecuador. Of the wells drilled in Colombia, 24 were drilled in Midas, seven in Chaza and one in Alea 1848-A Blocks. In Ecuador we drilled one of each wells in Chanangue and Charapa Blocks, respectively. As at December 31, 2022, all development and two exploration wells in Colombia and both exploration wells in Ecuador were producing.

**Liquidity and Capital Resources**

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| | | | | | |
|:---|:---|:---|:---|:---|:---|
| | **As at December 31,** | **As at December 31,** | **As at December 31,** | **As at December 31,** | **As at December 31,** |
| **(Thousands of U.S. Dollars)** | **2022** | **% Change** | **2021** | **% Change** | **2020** |
| Cash and cash equivalents | $**126873** | 386 | $26109 | 91 | $13687 |
| Current restricted cash and cash equivalents | $**1142** | 191 | $392 | (8) | $427 |
| Revolving credit facility | $**—** | (100) | $67500 | (64) | $190000 |
| Senior Notes | $**579909** | (3) | $600000 |  | $600000 |

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We believe that our capital resources, including cash on hand, cash generated from operations, and available capacity on our credit facility, will provide us with sufficient liquidity to maintain current operations and execute the capital program for the next 12 months and beyond, given current oil price trends and production levels. In accordance with our investment policy, available cash balances are held in our primary cash management banks or may be invested in U.S. or Canadian government-backed federal, provincial, or state securities or other money market instruments with high credit ratings and short-term liquidity. We believe that our current financial position provides us the flexibility to respond to both internal growth opportunities and those available through acquisitions. In addition to cash on hand, cash generated from operations and borrowings under our credit facility, in pursuing our strategic acquisitions and growth opportunities, we may seek other sources of capital.

During the year December 31, 2022, we terminated our prior revolving credit facility agreement and replaced the prior facility with a new credit facility agreement. The credit facility has a borrowing base of up to $150.0 million with $100.0 million as an initial commitment available at December 31, 2022, and an option for an additional $50.0 million upon mutual agreement by us and the lender. The credit facility bears interest based on the secured overnight financing rate posted by the Federal Reserve Bank of New York plus a credit margin of 6.00% and a credit-adjusted spread of 0.26%. Undrawn amounts under the credit facility bear interest at 2.10% per annum, based on the amount available. The credit facility is secured by our Colombian assets and economic rights. It has a final maturity date of August 15, 2024, which may be extended to February 18, 2025, upon the satisfaction of certain conditions. The availability period for the draws is six months commencing the date of the credit facility. As of December 31, 2022, the credit facility remained undrawn. Subsequent to December 31, 2022, the availability period for draws under the credit facility were extended until August 20, 2023.

Under the terms of the credit facility, we are required to maintain compliance with the following financial covenants:

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;i.Global Coverage Ratio of at least 150% is calculated using the net present value of the consolidated future cash flows of the Company up to the final maturity date discounted at 10% over the outstanding amount on the credit facility at each reporting period. The net present value of the consolidated future cash flows of the Company is required to be based on 80% of the prevailing ICE Brent forward strip.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;ii.Prepayment Life Coverage Ratio of at least 150% calculated using the estimated aggregate value of commodities to be delivered under the commercial contract from the commencement date to the final maturity date based on 80% of the prevailing ICE Brent forward strip and adjusted for quality and transportation discounts over the outstanding amount on the credit facility including interest and all other costs payable to the lender.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;i.Liquidity ratio where our projected sources of cash exceed projected uses of cash by at least 1.15 times in each quarter period included in one year consolidated future cash flows. The future cash flows represent forecasted expected cash flows from operations, less anticipated capital expenditures, and certain other adjustments. The commodity pricing assumption used in this covenant is required to be 90% of the prevailing Brent forward strip for the projected future cash flows.

At December 31, 2022, we had $300.0 million of 7.75% Senior Notes due 2027 (the "7.75% Senior Notes") and $279.9 million of 6.25% Senior Notes due 2025 (the "6.25% Senior Notes" and, together with the 7.75% Senior Notes, the "Senior Notes").

The 7.75% Senior Notes bear interest at a rate of 7.75% per year, payable semi-annually in arrears on May 23 and November 23 of each year, beginning on November 23, 2019. The 7.75% Senior Notes will mature on May 23, 2027, unless earlier redeemed or re-purchased.

The 6.25% Senior Notes bear interest at a rate of 6.25% per year, payable semi-annually in arrears on February 15 and August 15 of each year, beginning on August 15, 2018. The 6.25% Senior Notes will mature on February 15, 2025, unless earlier redeemed or re-purchased.

An event of default under the revolving credit facility would result in a default under the indentures governing the Senior Notes, which could allow the noteholders to require us to re-purchase all of the outstanding Senior Notes.

During the year ended December 31, 2022, we re-purchased in the open market $20.1 million of 6.25% Senior Notes for cash consideration of $17.3 million, including interest payable of $0.1 million. The re-purchase resulted in a $2.6 million gain, which included the write-off of deferred financing fees of $0.3 million. The re-purchased 6.25% Senior Notes were not cancelled and were held by us as treasury bonds as at December 31, 2022.

During the year ended December 31, 2022, we implemented a share re-purchase program (the "2022 Program") through the facilities of the Toronto Stock Exchange ("TSX") and eligible alternative trading platforms in Canada. Under the 2022 Program, we are able to purchase at prevailing market prices up to 36,033,969 shares of Common Stock, representing approximately 10% of the issued and outstanding shares of Common Stock as of August 22, 2022. The 2022 Program expires

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on August 31, 2023, or earlier if the 10% share maximum is reached. Re-purchases are subject to prevailing market conditions, the trading price of our Common Stock, our financial performance and other conditions.

During the year ended December 31, 2022, we re-purchased 22,747,462 shares at a weighted average price of approximately $1.20 per share. The re-purchased shares were held by us and were recorded as treasury stock as at December 31, 2022.

Subsequent to year-end, the Company received $5.4 million from the vesting of 6.0 million short-term PEF units.

***Cash and Cash Equivalents Held Outside of Canada and the United States***

At December 31, 2022, 100% of our cash and cash equivalents were held by subsidiaries outside Canada and the United States.

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***Cash Flows***

The following table presents our sources and uses of cash and cash equivalents for the periods presented:

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| | | | |
|:---|:---|:---|:---|
| | **Year Ended December 31,** | **Year Ended December 31,** | **Year Ended December 31,** |
| | **2022** | **2021** | **2020** |
| **Sources of Cash and Cash Equivalents:** |  |  |  |
| Net income (loss) | $**139029** | $42482 | $(777967) |
| Adjustments to reconcile net income (loss) to funds flow from operations |  |  |  |
| &nbsp;&nbsp;DD&A expenses | **180280** | 139874 | 164233 |
| &nbsp;&nbsp;Asset impairment | **—** |  | 564495 |
| &nbsp;&nbsp;Goodwill Impairment | **—** |  | 102581 |
| &nbsp;&nbsp;Deferred tax expense (recovery) | **25340** | (23825) | (76148) |
| &nbsp;&nbsp;Stock-based compensation expense | **9049** | 8396 | 1216 |
| &nbsp;&nbsp;Amortization of debt issuance costs | **3528** | 3809 | 3625 |
| &nbsp;&nbsp;Unrealized foreign exchange loss | **10251** | 21879 | 5271 |
| &nbsp;&nbsp;Other non-cash (gain) loss | **(2598)** | 44 | 2026 |
| &nbsp;&nbsp;Derivative instruments loss | **26611** | 48838 | 2935 |
| &nbsp;&nbsp;&nbsp;Cash settlement on derivative instruments | **(26611)** | (58427) | 4874 |
| &nbsp;&nbsp;&nbsp;Other financial instruments (gain) loss | **(7)** | 3369 | 48047 |
| &nbsp;&nbsp;&nbsp;Non-cash lease expenses | **2818** | 1667 | 1951 |
| &nbsp;&nbsp;&nbsp;Lease payments | **(1666)** | (1621) | (1926) |
| Funds flow from operations <sup>(1)</sup> | **366024** | 186485 | 45213 |
| &nbsp;&nbsp;Changes in non-cash operating working capital | **64317** | 59154 | 36062 |
| &nbsp;&nbsp;Proceeds from other debt, net of issuance costs | **—** |  | 88332 |
| &nbsp;&nbsp;Changes in non-cash investing working capital | **26273** | 1431 |  |
| &nbsp;&nbsp;Proceeds from exercise of stock options | **1298** | 100 |  |
| &nbsp;&nbsp;Proceeds from issuance of Common Stock, net of issuance costs | **2** |  |  |
| &nbsp;&nbsp;Proceeds on disposition of investment, net of transaction costs | **—** | 43126 |  |
|  | **457914** | 290296 | 169607 |
| **Uses of Cash and Cash Equivalents:** |  |  |  |
| &nbsp;&nbsp;Additions to property, plant and equipment | **(236604)** | (149879) | (96281) |
| &nbsp;&nbsp;Repayment of debt | **(67803)** | (122500) | (17000) |
| &nbsp;&nbsp;Lease payments | **(2228)** | (2182) | (879) |
| &nbsp;&nbsp;Proceeds from other debt, net of issuance costs | **—** | (228) |  |
| &nbsp;&nbsp;Changes in non-cash investing working capital | **—** |  | (48642) |
| &nbsp;&nbsp;Cash settlement of asset retirement obligation | **(2630)** | (805) | (201) |
| &nbsp;&nbsp;Re-purchase of shares of Common Stock | **(27317)** |  |  |
| &nbsp;&nbsp;Re-purchase of Senior Notes | **(17274)** |  |  |
| Foreign exchange loss on cash and cash equivalents and restricted cash and cash equivalents | **(2104)** | (821) | (156) |
|  | **(355960)** | (276415) | (163159) |
| Net increase in cash and cash equivalents and restricted cash and cash equivalents | $**101954** | $13881 | $6448 |

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<sup>(1)</sup> Funds flow from operations is a non-GAAP measure which does not have any standardized meaning prescribed under GAAP. Refer to "Financial and Operational Highlights - Non-GAAP measures" for a definition and reconciliation of this measure.

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**Off-Balance Sheet Arrangements**

As at December 31, 2022, 2021, and 2020, we had no off-balance sheet arrangements.

**Contractual Obligations**

The following is a schedule by year of purchase obligations, future minimum payments for firm agreements and leases that have initial or remaining non-cancelable terms in excess of one year as of December 31, 2022:

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| | | | | | |
|:---|:---|:---|:---|:---|:---|
| **(Thousands of U.S. Dollars)** | **Total** | **2023** | **2024-2025** | **2026-2027** | **2028 and beyond** |
| 6.25% Senior Notes | 279909 |  | 279909 |  |  |
| 7.75% Senior Notes | 300000 |  |  | 300000 |  |
| Total long-term debt | 579909 |  | 279909 | 300000 |  |
| Interest payments <sup>(1)</sup> | 142820 | 42844 | 67491 | 32485 |  |
| Facilities | 8704 | 1997 | 3999 | 2708 |  |
| Operating leases | 10684 | 2093 | 3315 | 3661 | 1615 |
| Finance leases | 22036 | 5105 | 6877 | 10054 |  |
| Software and Telecommunication | 774 | 387 | 387 |  |  |
| Total | $**764927** | $**52426** | $**361978** | $**348908** | $**1615** |

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<sup>(1)</sup> Interest payments were calculated by assuming that our credit facility will be held to its maturity date of August 15, 2024, and our 6.25% Senior Notes and 7.75% Senior Notes will be held until their maturity dates of February 2025 and May 2027, respectively. Actual results will differ from these estimates and assumptions.

At December 31, 2022, we had provided promissory notes totaling $111.1 million (2021 - $103.0 million) to support letters of credit or surety bonds relating to work commitment guarantees contained in exploration contracts and other capital or operating requirements. These unsecured letters of credit do not utilize our credit facility capacity because they are backed by local Colombian banks and Export Development Canada.

The above table does not reflect estimated amounts expected to be incurred in the future associated with the abandonment of our oil and gas properties and other long-term liabilities, as we cannot determine with accuracy the timing of such payments. Information regarding our asset retirement obligation can be found in Note 10 to the Consolidated Financial Statements, Asset Retirement Obligation, in Item 8 "Financial Statements and Supplementary Data."

As is customary in the oil and gas industry, we may at times have commitments in place to reserve or earn certain acreage positions or wells. If we do not meet such commitments, the acreage positions or wells may be lost, and associated penalties may be payable.

**Climate Change**

*We have considered the impact of the climate events on the following items presented in this Annual Report on Form 10-K for the fiscal year ended December 31, 2022:*

*Impairment*

We have considered the impact of the evolving worldwide demand for energy and global advancement of alternative sources of energy that are not sourced from fossil fuels in the ceiling test impairment assessment on oil and gas properties. The estimated ceiling amount of our oil and gas properties was based on proved reserves, the life of which is generally less than 15 years. The ultimate period in which global energy markets can transition from carbon-based sources to alternative energy is highly uncertain. However, the majority of the cash flows associated with proved reserves per the 2022 reserve report should be realized prior to the potential elimination of carbon-based energy.

At December 31, 2022, a specific adjustment to the discount rate used in the ceiling test to account for the risk of the evolving demand for energy was not permitted as under the full cost accounting 10% discount rate is prescribed.

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*Expenditures on property, plant and equipment*

From 2018 to 2022, we incurred $22.7 million on gas-to-power facilities in Acordionero field to reduce emissions principally by the recovery of natural gas and displacement of diesel. In 2022, the Acordionero field represented 52% percent of our production. As of December 31, 2022, we incurred capital expenditures of $0.6 million on gas-to-power facilities in the Cohembi field to reduce emissions principally by the recovery of natural gas and displacement of diesel. During 2022, we converted 1.8 billion standard cubic feet of natural gas into electricity instead of being flared. The extent of spending on projects directly linked to reducing the climate impact of our operations.

We voluntarily support projects for the protection of the environment. Through programs like Gran Tierra's flagship environmental initiative, NaturAmazonas, in partnership with the international non-governmental organization Conservation International, we have committed to reforesting 1,000 hectares of land and securing and maintaining 18,000 hectares of forest in the Andes-Amazon rainforest corridor. The NaturAmazonas project alone is expected to sequester approximately 8.7 million tonnes of carbon dioxide over its lifetime. We have planted a total of 1.5 million trees and conserved, preserved, or reforested 3,874 hectares of land through all of the Company's environmental efforts since 2018. We will continue to implement projects that focus on environmental protection, conservation and reforestation efforts.

*Current assets and current liabilities*

These amounts are short-term in nature, and during 2022 management was not aware of any material impacts on these items related to climate change and climate events. We did not experience material credit losses on our accounts receivable during 2022.

*Share capital*

The evolving energy transition and general sentiment to the oil and gas industry may result in reduced access to capital markets.

**Critical Accounting Policies and Estimates**

The preparation of financial statements under GAAP requires management to make estimates, judgments, and assumptions that affect the reported amounts of assets and liabilities as well as the revenues and expenses reported and disclosure of contingent liabilities. Changes in these estimates related to judgments and assumptions will occur as a result of changes in facts and circumstances or discovery of new information, and, accordingly, actual results could differ from the amounts estimated.

On a regular basis, we evaluate our estimates, judgments, and assumptions. We also discuss our critical accounting policies and estimates with the Audit Committee of the Board of Directors.

Certain accounting estimates are considered to be critical if (a) the nature of the estimates and assumptions is material due to the level of subjectivity and judgment necessary to account for highly uncertain matters or the susceptibility of such matters to changes; and (b) the impact of the estimates and assumptions on financial condition or operating performance is material. The areas of accounting and the associated critical estimates and assumptions made are discussed below.

***Full Cost Method of Accounting, Proved Reserves, DD&A, and Impairment of Oil and Gas Properties***

We follow the full cost method of accounting for our oil and natural gas properties in accordance with SEC Regulation S-X Rule 4-10, as described in Note 2 to the Consolidated Financial Statements, Significant Accounting Policies, in Item 8 "Financial Statements and Supplementary Data." Under the full cost method of accounting, all costs incurred in the acquisition, exploration, and development of properties are capitalized, including internal costs directly attributable to these activities. The sum of net capitalized costs, including estimated asset retirement obligations ("ARO"), and estimated future development costs to be incurred in developing proved reserves are depleted using the unit-of-production method.

Companies that use the full cost method of accounting for oil and natural gas exploration and development activities are required to perform a ceiling test calculation. The ceiling test limits pooled costs to the aggregate of the discounted estimated after-tax future net revenues from proved oil and gas properties, plus the lower of cost or estimated fair value of unproved properties less any associated tax effects.

If our net book value of oil and gas properties, less related deferred income taxes, is in excess of the calculated ceiling, the excess must be written off as an expense. Any such write-down will reduce earnings in the period of occurrence and result in lower DD&A expenses in future periods. The ceiling limitation is imposed separately for each country in which we have oil and

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gas properties. An expense recorded in one period may not be reversed in a subsequent period, even though higher oil and gas prices may have increased the ceiling applicable to the subsequent period.

Our estimates of proved oil and gas reserves are a major component of the depletion and full cost ceiling calculations. Additionally, our proved reserves represent the element of these calculations that require the most subjective judgments. Estimates of reserves are forecasts based on engineering data, projected future rates of production, and the amount and timing of future expenditures. The process of estimating oil and natural gas reserves requires substantial judgment, resulting in imprecise determinations, particularly for new discoveries. Different reserve engineers may make different estimates of reserve quantities based on the same data.

We believe our assumptions are reasonable based on the information available to us at the time we prepare our estimates. However, these estimates may change substantially as additional data from ongoing development activities and production performance becomes available and as economic conditions impact oil and gas prices and costs change.

Management is responsible for estimating the quantities of proved oil and natural gas reserves and for preparing related disclosures. Estimates and related disclosures are prepared in accordance with SEC requirements and generally accepted industry practices in the United States as prescribed by the Society of Petroleum Engineers. Reserve estimates are evaluated at least annually by independent qualified reserves consultants.

While the quantities of proved reserves require substantial judgment, the associated prices of oil and natural gas and the applicable discount rate that are used to calculate the discounted present value of the reserves do not require judgment. The ceiling calculation dictates that a 10% discount factor be used and future net revenues are calculated using prices that represent the average of the first day of each month price for the 12-month period. Therefore, the future net revenues associated with the estimated proved reserves are not based on our assessment of future prices or costs but reflect adjustments for gravity, quality, local conditions, gathering and transportation fees, and distance from market. Estimates of standardized measure of our future cash flows from proved reserves for our December 31, 2022, ceiling tests were based on wellhead prices per bbl as of the first day of each month within that twelve month period.

Because the ceiling test calculation dictates the use of prices that are not representative of future prices and requires a 10% discount factor, the resulting value should not be construed as the current market value of the estimated oil and gas reserves attributable to our properties. Historical oil and gas prices for any particular 12-month period can be either higher or lower than our price forecast. Therefore, oil and gas property write-downs that result from applying the full cost ceiling limitation, and that are caused by fluctuations in price as opposed to reductions to the underlying quantities of reserves should not be viewed as absolute indicators of a reduction of the ultimate value of the related reserves.

Our Reserves Committee oversees the annual review of our oil and gas reserves and related disclosures. The Board meets with management periodically to review the reserves process, results and related disclosures and appoints and meets with the independent reserves consultants to review the scope of their work, whether they have had access to sufficient information, the nature and satisfactory resolution of any material differences of opinion, and in the case of the independent reserves consultants, their independence.

For the years ended December 31, 2022 and 2021, we had no ceiling test impairment losses and incurred ceiling test impairment loss of $560.3 million for the year ended December 31, 2020. We used an average Brent price of $97.98 per bbl less corresponding differentials for the purposes of the December 31, 2022 ceiling test calculations (2021 and 2020 - $68.92 and $43.43, respectively).

It is difficult to predict with reasonable certainty the amount of expected future impairment losses given the many factors impacting the asset base and the cash flows used in the prescribed U.S. GAAP ceiling test calculation. These factors include, but are not limited to, future commodity pricing, royalty rates in different pricing environments, operating costs and negotiated savings, foreign exchange rates, capital expenditures timing and negotiated savings, production and its impact on depletion and cost base, upward or downward reserve revisions as a result of ongoing exploration and development activity, and tax attributes.

***Unproved Properties***

Unproved properties are not depleted pending the determination of the existence of proved reserves. Costs are transferred into the amortization base on an ongoing basis as the properties are evaluated and proved reserves are established or impairment is determined. Unproved properties are evaluated quarterly to ascertain whether impairment has occurred. Unproved properties, the costs of which are individually significant, are assessed individually by considering seismic data, plans or requirements to

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relinquish acreage, drilling results and activity, remaining time in the commitment period, remaining capital plans and political, economic and market conditions. Where it is not practicable to individually assess the amount of impairment of properties for which costs are not individually significant, these properties are grouped for purposes of assessing impairment. During any period in which factors indicate an impairment, the cumulative costs incurred to date for such property are transferred to the full cost pool and are then subject to amortization. The transfer of costs into the amortization base involves a significant amount of judgment and may be subject to changes over time based on our drilling plans and results, seismic evaluations, the assignment of proved reserves, availability of capital and other factors. For countries where a reserve base has not yet been established, the impairment is charged to earnings.

***Asset Retirement Obligations***

We are required to remove or remedy the effect of our activities on the environment at our present and former operating sites by dismantling and removing production facilities and remediating any damage caused. Estimating our future ARO requires us to make estimates and judgments with respect to activities that will occur many years into the future. In addition, the ultimate financial impact of environmental laws and regulations is not always clearly known and cannot be reasonably estimated as standards evolve in the countries in which we operate.

We record ARO in our consolidated financial statements by discounting the present value of the estimated retirement obligations associated with our oil and gas wells and facilities. In arriving at amounts recorded, we make numerous assumptions and judgments with respect to the existence of a legal obligation for an ARO, estimated probabilities, amounts and timing of settlements, inflation factors, credit-adjusted risk-free discount rates and changes in legal, regulatory, environmental and political environments. Because costs typically extend many years into the future, estimating future costs is difficult and requires management to make judgments that are subject to future revisions based upon numerous factors, including changing technology and the political and regulatory environment. In periods subsequent to initial measurement of the ARO, we must recognize period-to-period changes in the liability resulting from the passage of time and revisions to either the timing or the amount of the original estimate of undiscounted cash flows. Increases in the ARO liability due to passage of time impact net income as accretion expense. The related capitalized costs, including revisions thereto, are charged to expense through DD&A.

It is difficult to determine the impact of a change in any one of our assumptions. As a result, we are unable to provide a reasonable sensitivity analysis of the impact a change in our assumptions would have on our financial results.

***Prepaid Equity Forward***

We utilize PEF to economically hedge, in whole or in part, our economic exposure relating to fluctuations in the market price of our Common Shares related to Performance Share Units ("PSUs") plan and is designated at fair value through profit or loss. The fair value of the PEF is measured based on the share price of our Common Shares. The gains and losses related to the mark-to-market of the PEF are recorded in G&A expense.

***Leases***

At inception of a contract, we assess whether a contract is, or contains, a lease. A contract is, or contains, a lease if the contract conveys the right to control the use of an identified asset for a period of time in exchange for consideration. At inception of a contract that contains a lease component, we allocate the consideration in the contract to each lease and non-lease component on the basis of their relative stand-alone prices. We recognize a right-of-use asset and a lease liability at the lease commencement date. The right-of-use asset is initially measured at cost, and subsequently at cost less any accumulated depreciation and impairment losses, and adjusted for certain remeasurements of the lease liability.

The lease liability is initially measured at the present value of the lease payments that are not paid at the commencement date, discounted using the interest rate implicit in the lease or, if that rate cannot be readily determined, our incremental borrowing rate. Generally, we use our incremental borrowing rate as the discount rate. The lease liability is subsequently increased by the interest cost on the lease liability and decreased by lease payments made. It is remeasured when there is a change in future lease payments arising from a change in an index or rate, a change in the estimate of the amount expected to be payable under a residual value guarantee, or as appropriate, changes in the assessment of whether a purchase or extension option is reasonably certain to be exercised or a termination option is reasonably certain not to be exercised.

We have applied judgment to determine the lease term for contracts which include renewal or termination options. The assessment of whether we are reasonably certain to exercise such options impacts the lease term, which significantly affects the amount of lease liabilities and right-of-use assets recognized.

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***Revenue from Contracts with Customers***

Our revenue relates to oil sales in Colombia. We recognize revenue when it transfers control of the product to a customer. This generally occurs at the time the customer obtains legal title to the product and when it is physically transferred to the delivery point agreed with the customer. Payment terms are generally within three business days following delivery of an invoice to the customer. Revenue is recognized based on the consideration specified in contracts with customers. Revenue represents our share and is recorded net of royalty payments to governments and other mineral interest owners.

We evaluate our arrangement with third parties and partners to determine if we act as a principal or an agent. In making this evaluation, our management considers if we obtain control of the product delivered, which is indicated by us having the primary responsibility for the delivery of the product, having ability to establish prices or having inventory risk. If we act in the capacity of an agent rather than as a principal in transaction, then the revenue is recognized on a net-basis, only reflecting the fee realized by us from the transaction.

Tariffs, tolls and fees charged to other entities for use of pipelines owned by us are evaluated by management to determine if these originate from contracts with customers or from incidental arrangements.

In the comparative period, revenue from the production of oil and natural gas was recognized when the customer took title and assumed the risks and rewards of ownership, prices were fixed or determinable, the sale was evidenced by a contract and collection of the revenue was reasonably assured.

When determining if we acted as a principal or as an agent in transactions, management determines if we obtain control of the product. As part of this assessment, management considers detailed criteria for revenue recognition set out in Accounting Standard Codification ("ASC") 606.

***Allowance for credit losses***

At each reporting date, we assess the expected lifetime credit losses on initial recognition of trade accounts receivable. Credit risk is assessed based on the number of days the receivable has been outstanding and the internal credit assessment of the customer. The expected loss rates are based on payment profiles over a period of 36 months prior to the period-end and the corresponding historical credit losses experienced within this period. Historical loss rates are adjusted to reflect current and forward-looking economic factors of the country where we sell oil affecting the ability of the customers to settle the receivables. Trade receivables are written off when there is no reasonable expectation of recovery.

***Income Taxes***

We follow the liability method of accounting for income taxes whereby we recognize deferred income tax assets and liabilities for the future tax consequences attributable to differences between the financial statement carrying amounts of assets and liabilities and their respective tax bases. Deferred tax assets are also recognized for the future tax benefits attributable to the expected utilization of existing tax net operating loss carryforwards and other types of carryforwards. Deferred tax assets and liabilities are measured using enacted tax rates expected to apply to taxable income in the years in which those temporary differences and carryforwards are expected to be recovered or settled. The effect on deferred tax assets and liabilities of a change in tax rates is recognized in income in the period that includes the enactment date.

We carry on business in several countries and as a result, we are subject to income taxes in numerous jurisdictions. The determination of our income tax provision is inherently complex and we are required to interpret continually changing regulations and make certain judgments. While income tax filings are subject to audits and reassessments, we believe we have made adequate provision for all income tax obligations. However, changes in facts and circumstances as a result of income tax audits, reassessments, jurisprudence and any new legislation may result in an increase or decrease in our provision for income taxes.

To assess the realization of deferred tax assets, we consider whether it is more likely than not that some portion or all of the deferred tax assets will not be realized. The ultimate realization of deferred tax assets is dependent upon the generation of future taxable income during the periods in which those temporary differences become deductible. We consider the scheduled reversal of deferred tax liabilities, projected future taxable income and tax planning strategies in making this assessment.

Our effective tax rate is based on pre-tax income and the tax rates applicable to that income in the various jurisdictions in which we operate. An estimated effective tax rate for the year is applied to our quarterly operating results. In the event that there is a

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significant unusual or discrete item recognized, or expected to be recognized, in our quarterly operating results, the tax attributable to that item would be separately calculated and recorded at the same time as the unusual or discrete item. We consider the resolution of prior-year tax matters to be such items. Significant judgment is required in determining our effective tax rate and in evaluating our tax positions. We establish reserves when it is more likely than not that we will not realize the full tax benefit of the position. We adjust these reserves in light of changing facts and circumstances.

We routinely assess potential uncertain tax positions and, if required, estimate and establish accruals for such amounts.

***Legal and Other Contingencies***

A provision for legal and other contingencies is charged to expense when the loss is probable and the cost can be reasonably estimated. Determining when expenses should be recorded for these contingencies and the appropriate amount for accrual is a complex estimation process that includes the subjective judgment of management. In many cases, management's judgment is based on interpretation of laws and regulations, which can be interpreted differently by regulators and/or courts of law. Management closely monitors known and potential legal and other contingencies and periodically determines when we should record losses for these items based on information available to us.

***Stock-Based Compensation***

Our stock-based compensation cost is measured based on the fair value of the awards that are ultimately expected to vest. Fair values are determined using pricing models such as the Black-Scholes simulation stock option-pricing model and/or observable share prices. These estimates depend on certain assumptions, including volatility, risk-free interest rate, the term of the awards, the forfeiture rate and performance factors, which, by their nature, are subject to measurement uncertainty. We use historical data to estimate the expected term used in the Black-Scholes option pricing model, option exercises and employee departure behavior. Expected volatilities used in the fair value estimate are based on the historical volatility of our shares. The risk-free rate for periods within the expected term of the stock options is based on the U.S. Treasury yield curve in effect at the time of grant.

**Item 7A. *Quantitative and Qualitative Disclosures About Market Risk***

**Commodity Price Risk**

Our principal market risk relates to oil prices. Oil prices are volatile and unpredictable and influenced by concerns over world supply and demand imbalance and many other market factors outside of our control. Our revenues are from oil sales at Brent pricing and adjusted for quality.

**Foreign Currency Risk**

Foreign currency risk is a factor for our company but is ameliorated to a certain degree by the nature of expenditures and revenues in the countries where we operate. Our reporting currency is U.S. dollars and 100% of our revenues are related to the U.S. dollar price of Brent or WTI oil. In Colombia, we receive 100% of our revenues in U.S. dollars and the majority of our capital expenditures are in U.S. dollars or are based on U.S. dollar prices. The majority of income and VAT and G&A expenses in all locations are in local currency.

Additionally, foreign exchange gains and losses result primarily from the fluctuation of the U.S. dollar to the Colombian peso and Canadian dollar ("CAD") due to our current and deferred tax assets, and taxes receivable denominated in the local currency of the Colombian foreign operations which are our monetary assets. As a result, a foreign exchange gain or loss must be calculated on conversion to the U.S. dollar functional currency. A strengthening in one Colombian peso against the U.S. dollar results in foreign exchange gain of approximately $6 thousand on deferred tax asset balance and a foreign exchange loss of approximately $7 thousand on taxes payable.

**Interest Rate Risk**

Interest rate risk is the risk that future cash flows will fluctuate as a result of changes in market interest rates. We are exposed to interest rate fluctuations on our credit facility, which bears floating rates of interest. At December 31, 2022, our credit facility remained undrawn (December 31, 2021 - $67.5 million).

Our investment objectives are focused on preservation of principal and liquidity. By policy, we manage our exposure to market risks by limiting investments to high quality bank issues at overnight rates, or U.S. or Canadian government-backed federal,

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provincial or state securities or other money market instruments with high credit ratings and short-term liquidity. A 10% change in interest rates would not have a material effect on the value of our investment portfolio. We do not hold any of these investments for trading purposes.

**Item 8. *Financial Statements and Supplementary Data***

**Report of Independent Registered Public Accounting Firm**

To the Shareholders and Board of Directors of Gran Tierra Energy Inc.:

*Opinion on the Consolidated Financial Statements*

We have audited the accompanying consolidated balance sheets of Gran Tierra Energy Inc. and subsidiaries (the Company) as of December 31, 2022 and 2021, the related consolidated statements of operations, shareholders' equity, and cash flows for each of the years in the three-year period ended December 31, 2022, and the related notes (collectively, the consolidated financial statements). In our opinion, the consolidated financial statements present fairly, in all material respects, the financial position of the Company as of December 31, 2022 and 2021, and the results of its operations and its cash flows for each of the years in the three-year period ended December 31, 2022, in conformity with U.S. generally accepted accounting principles.

We also have audited, in accordance with the standards of the Public Company Accounting Oversight Board (United States) (PCAOB), the Company's internal control over financial reporting as of December 31, 2022, based on criteria established in *Internal Control – Integrated Framework (2013)* issued by the Committee of Sponsoring Organizations of the Treadway Commission, and our report dated February 21, 2023 expressed an unqualified opinion on the effectiveness of the Company's internal control over financial reporting.

*Basis for Opinion*

These consolidated financial statements are the responsibility of the Company's management. Our responsibility is to express an opinion on these consolidated financial statements based on our audits. We are a public accounting firm registered with the PCAOB and are required to be independent with respect to the Company in accordance with the U.S. federal securities laws and the applicable rules and regulations of the Securities and Exchange Commission and the PCAOB.

We conducted our audits in accordance with the standards of the PCAOB. Those standards require that we plan and perform the audit to obtain reasonable assurance about whether the consolidated financial statements are free of material misstatement, whether due to error or fraud. Our audits included performing procedures to assess the risks of material misstatement of the consolidated financial statements, whether due to error or fraud, and performing procedures that respond to those risks. Such procedures included examining, on a test basis, evidence regarding the amounts and disclosures in the consolidated financial statements. Our audits also included evaluating the accounting principles used and significant estimates made by management, as well as evaluating the overall presentation of the consolidated financial statements. We believe that our audits provide a reasonable basis for our opinion.

*Critical Audit Matter*

The critical audit matter communicated below is a matter arising from the current period audit of the consolidated financial statements that was communicated or required to be communicated to the audit committee and that: (1) relates to accounts or disclosures that are material to the consolidated financial statements and (2) involved our especially challenging, subjective, or complex judgments. The communication of a critical audit matter does not alter in any way our opinion on the consolidated financial statements, taken as a whole, and we are not, by communicating the critical audit matter below, providing a separate opinion on the critical audit matter or on the accounts or disclosures to which it relates.

*Impact of estimated proved oil and gas reserves on the calculations of depletion expense and the ceiling test related to Colombian oil and gas properties*

As discussed in Note 2 to the consolidated financial statements, the Company depletes its oil and gas properties using the unit-of-production method on a country-by-country basis. Under such method, capitalized costs associated with Colombia are depleted over the estimated proved oil and gas reserves associated with Colombia. As discussed in Note 5 to the consolidated financial statements, for the year ended December 31, 2022, the Company recorded depletion and depreciation expense of $175.8 million. Additionally, as discussed in Note 2 and Note 6 to the consolidated financial statements, the Company performs a ceiling test calculation each quarter and for the year ended December 31, 2022 the Company did not record a ceiling test

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impairment. In performing its quarterly ceiling test, the Company limits, on a country-by-country basis, the capitalized costs of proved oil and natural gas properties, net of accumulated depletion and deferred income taxes, to the estimated future net cash flows from proved reserves discounted at 10 percent, net of related tax effects, plus the lower of cost or fair value of unproved properties included in the costs being amortized. If such capitalized costs exceed the ceiling, the Company will record a write-down to the extent of such excess as a non-cash charge to net income or loss. The estimation of proved reserves, which are used in the calculations of depletion and the ceiling test, involves the expertise of independent reservoir engineering specialists who take into consideration reserve assumptions. The Company engages independent reservoir engineering specialists to estimate the proved reserves.

We identified the assessment of the impact of estimated proved reserves on the calculations of depletion expense and the ceiling test related to oil and gas properties as a critical audit matter. Changes in reserve assumptions could have had a significant impact on the calculations of depletion expense and the ceiling tests. A high degree of auditor judgment was required in evaluating the proved reserves, and related reserve assumptions, which were an input to the calculations of depletion expense and the ceiling tests.

The following are the primary procedures we performed to address this critical audit matter. We evaluated the design and tested the operating effectiveness of certain internal controls related to the critical audit matter, including controls over the calculation of depletion expense and the ceiling test and controls over the estimation of the proved reserves, including the reserve assumptions. We assessed the calculations of depletion expense and the ceiling test for compliance with regulatory standards. We evaluated the competence, capabilities and objectivity of the independent reservoir engineering specialists engaged by the Company, who estimated the proved reserves. We evaluated the methodology used by the independent reservoir engineering specialists to estimate the proved reserves for compliance with regulatory standards. We compared the Company's 2022 actual production, operating, royalty and capital costs to those estimates used in the prior year's estimate of the proved reserves to assess the Company's ability to accurately forecast. We assessed the estimates of forecasted production and forecasted operating, royalty and capital cost assumptions used in the estimate of the proved reserves by comparing them to historical results.

We have served as the Company's auditor since 2018.

/s/ KPMG LLP

Chartered Professional Accountants

Calgary, Canada

February 21, 2023

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**Gran Tierra Energy Inc.**

**Consolidated Statements of Operations**

**(Thousands of U.S. Dollars, Except Share and Per Share Amounts)**

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| | | | |
|:---|:---|:---|:---|
| | **Year Ended December 31,** | **Year Ended December 31,** | **Year Ended December 31,** |
| | **2022** | **2021** | **2020** |
| **OIL SALES (NOTE 11)** | $**711388** | $473722 | $237838 |
| **EXPENSES** |  |  |  |
| &nbsp;&nbsp;&nbsp;Operating | **162385** | 135722 | 114371 |
| &nbsp;&nbsp;&nbsp;Transportation | **10197** | 11618 | 10739 |
| &nbsp;&nbsp;Depletion, depreciation and accretion (Note 5 and 10) | **180280** | 139874 | 164233 |
| &nbsp;&nbsp;Goodwill impairment (Note 6) | **—** |  | 102581 |
| &nbsp;&nbsp;Asset impairment (Note 6) | **—** |  | 564495 |
| &nbsp;&nbsp;&nbsp;General and administrative | **40957** | 36263 | 25350 |
| &nbsp;&nbsp;Foreign exchange loss | **2578** | 20477 | 4184 |
| &nbsp;&nbsp;Derivative instruments loss (Note 14) | **26611** | 48838 | 2935 |
| &nbsp;&nbsp;Other financial instruments (gain) loss (Note 14) | **(7)** | 3369 | 48047 |
| &nbsp;&nbsp;Interest expense (Note 8) | **46493** | 54381 | 54140 |
| **TOTAL EXPENSES** | **469494** | 450542 | 1091075 |
| **OTHER GAIN (LOSS)** | **2598** | (44) | (469) |
| **INTEREST INCOME** | **443** |  | 345 |
| **INCOME (LOSS) BEFORE INCOME TAXES** | **244935** | 23136 | (853361) |
| **INCOME TAX EXPENSE (RECOVERY)** |  |  |  |
| &nbsp;&nbsp;Current (Note 12) | **80566** | 4479 | 754 |
| &nbsp;&nbsp;Deferred (Note 12) | **25340** | (23825) | (76148) |
|  | **105906** | (19346) | (75394) |
| **NET AND COMPREHENSIVE INCOME (LOSS)** | $**139029** | $42482 | $(777967) |
| **NET INCOME (LOSS) PER SHARE** |  |  |  |
| BASIC AND DILUTED | $**0.38** | $0.12 | $(2.12) |
| WEIGHTED AVERAGE SHARES OUTSTANDING - BASIC (Note 9) | ***364455456*** | *367022903* | *366981556* |
| WEIGHTED AVERAGE SHARES OUTSTANDING - DILUTED (Note 9) | ***369280097*** | *367873389* | *366981556* |

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*(See notes to the consolidated financial statements)*

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**Gran Tierra Energy Inc.**

**Consolidated Balance Sheets**

**(Thousands of U.S. Dollars, Except Share and Per Share Amounts)**

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| | | |
|:---|:---|:---|
| | **As at December 31,** | **As at December 31,** |
| | **2022** | **2021** |
| **ASSETS** |  |  |
| **Current Assets** |  |  |
| &nbsp;&nbsp;&nbsp;Cash and cash equivalents | **126873** | 26109 |
| &nbsp;&nbsp;Restricted cash and cash equivalents (Note 10) | **1142** | 392 |
| &nbsp;&nbsp;Accounts receivable (Note 3) | **10706** | 13185 |
| &nbsp;&nbsp;Taxes receivable (Note 4) | **54** | 45506 |
| &nbsp;&nbsp;&nbsp;Other current assets | **29812** | 16609 |
| **Total Current Assets** | **168587** | 101801 |
| **Oil and Gas Properties (using the full cost method of accounting)** |  |  |
| &nbsp;&nbsp;&nbsp;Proved | **1000424** | 859580 |
| &nbsp;&nbsp;&nbsp;Unproved | **74471** | 131865 |
| **Total Oil and Gas Properties** | **1074895** | 991445 |
| &nbsp;&nbsp;&nbsp;Other capital assets | **26007** | 4352 |
| **Total Property, Plant and Equipment (Note 5)** | **1100902** | 995797 |
| **Other Long-Term Assets** |  |  |
| &nbsp;&nbsp;Taxes receivable (Note 4) | **27796** | 17522 |
| &nbsp;&nbsp;Deferred tax assets (Note 12) | **22990** | 61494 |
| &nbsp;&nbsp;&nbsp;Other long-term assets | **15335** | 12497 |
| **Total Other Long-Term Assets** | **66121** | 91513 |
| **Total Assets** | $**1335610** | $1189111 |
| **LIABILITIES AND SHAREHOLDERS' EQUITY** |  |  |
| **Current Liabilities** |  |  |
| &nbsp;&nbsp;Accounts payable and accrued liabilities (Note 7) | $**167579** | $148694 |
| &nbsp;&nbsp;Current portion of long-term debt (Note 8) | **—** | 66987 |
| &nbsp;&nbsp;Derivatives (Note 14) | **—** | 2976 |
| &nbsp;&nbsp;Taxes payable (Note 4) | **58978** | 6620 |
| &nbsp;&nbsp;Equity compensation award liability (Note 9 and 14)  | **15082** | 2710 |
| **Total Current Liabilities** | **241639** | 227987 |
| **Long-Term Liabilities** |  |  |
| &nbsp;&nbsp;Long-term debt (Note 8) | **589593** | 587404 |
| &nbsp;&nbsp;Deferred tax liabilities (Note 12) | **28** |  |
| &nbsp;&nbsp;Asset retirement obligation (Note 10) | **63358** | 54525 |
| &nbsp;&nbsp;Equity compensation award liabilities (Note 9 and 14) | **16437** | 13718 |
| &nbsp;&nbsp;&nbsp;Other long-term liabilities | **6989** | 3397 |
| **Total Long-Term Liabilities** | **676405** | 659044 |
| **Commitments and Contingencies (Note 13)** |  |  |
| **Shareholders' Equity** |  |  |
| &nbsp;&nbsp;Common Stock (Note 9) (368,898,619 and 367,144,500 issued, 346,151,157 and 367,144,500 outstanding shares of Common Stock, par value $0.001 per share, issued and outstanding as at December 31, 2022, and December 31, 2021, respectively)  | **10272** | 10270 |
| &nbsp;&nbsp;Additional paid in capital | **1291354** | 1287582 |
| &nbsp;&nbsp;Treasury stock (Note 9) | **(27317)** |  |
| &nbsp;&nbsp;Deficit | **(856743)** | (995772) |
| **Total Shareholders' Equity** | **417566** | 302080 |
| **Total Liabilities and Shareholders' Equity** | $**1335610** | $1189111 |

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*(See notes to the consolidated financial statements)*

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**Gran Tierra Energy Inc.**

**Consolidated Statements of Cash Flows**

**(Thousands of U.S. Dollars)**

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| | | | |
|:---|:---|:---|:---|
| | **Year Ended December 31,** | **Year Ended December 31,** | **Year Ended December 31,** |
| | **2022** | **2021** | **2020** |
| **Operating Activities** |  |  |  |
| Net income (loss) | $**139029** | $42482 | $(777967) |
| Adjustments to reconcile net income (loss) to net cash provided by operating activities: |  |  |  |
| &nbsp;&nbsp;Depletion, depreciation and accretion (Note 5 and 10) | **180280** | 139874 | 164233 |
| &nbsp;&nbsp;Goodwill Impairment (Note 6) | **—** |  | 102581 |
| &nbsp;&nbsp;Asset impairment (Note 6) | **—** |  | 564495 |
| &nbsp;&nbsp;Deferred tax expense (recovery) (Note 12) | **25340** | (23825) | (76148) |
| &nbsp;&nbsp;Stock-based compensation expense (Note 9) | **9049** | 8396 | 1216 |
| &nbsp;&nbsp;Amortization of debt issuance costs (Note 8) | **3528** | 3809 | 3625 |
| &nbsp;&nbsp;&nbsp;Non-cash lease expenses | **2818** | 1667 | 1951 |
| &nbsp;&nbsp;&nbsp;Lease payments | **(1666)** | (1621) | (1926) |
| &nbsp;&nbsp;&nbsp;Unrealized foreign exchange loss | **10251** | 21879 | 5271 |
| &nbsp;&nbsp;Derivative instruments loss (Note 14) | **26611** | 48838 | 2935 |
| &nbsp;&nbsp;Cash settlement on derivatives instruments (Note 14) | **(26611)** | (58427) | 4874 |
| &nbsp;&nbsp;Other financial instruments (gain) loss (Note 14) | **(7)** | 3369 | 48047 |
| &nbsp;&nbsp;Cash settlement of asset retirement obligation (Note 10) | **(2630)** | (805) | (201) |
| &nbsp;&nbsp;&nbsp;Other non-cash (gain) loss | **(2598)** | 44 | 2026 |
| Net change in assets and liabilities from operating activities (Note 15) | **64317** | 59154 | 36062 |
| Net cash provided by operating activities | **427711** | 244834 | 81074 |
| **Investing Activities** |  |  |  |
| &nbsp;&nbsp;Additions to property, plant and equipment (Note 5) | **(236604)** | (149879) | (96281) |
| &nbsp;&nbsp;Proceeds on disposition of investment, net of transaction costs (Note 14) | **—** | 43126 |  |
| &nbsp;&nbsp;Changes in non-cash investing working capital | **26273** | 1431 | (48642) |
| Net cash used in investing activities | **(210331)** | (105322) | (144923) |
| **Financing Activities** |  |  |  |
| &nbsp;&nbsp;Re-purchase of Senior Notes (Note 8) | **(17274)** |  |  |
| &nbsp;&nbsp;Proceeds from bank debt, net of issuance costs | **—** | (228) | 88332 |
| &nbsp;&nbsp;Repayment of debt | **(67803)** | (122500) | (17000) |
| &nbsp;&nbsp;Lease payments | **(2228)** | (2182) | (879) |
| &nbsp;&nbsp;Proceeds from issuance of Common Stock, net of issuance costs (Note 9) | **2** |  |  |
| &nbsp;&nbsp;Proceeds from exercise of stock options (Note 9) | **1298** | 100 |  |
| &nbsp;&nbsp;Re-purchase of shares of Common Stock (Note 9) | **(27317)** |  |  |
| Net cash (used in) provided by financing activities | **(113322)** | (124810) | 70453 |
| Foreign exchange loss on cash and cash equivalents and restricted cash and cash equivalents | **(2104)** | (821) | (156) |
| Net increase in cash and cash equivalents and restricted cash and cash equivalents | **101954** | 13881 | 6448 |
| Cash and cash equivalents and restricted cash and cash equivalents,<br>beginning of year (Note 15) | **31404** | 17523 | 11075 |
| Cash and cash equivalents and restricted cash and cash equivalents, <br>end of year (Note 15) | $**133358** | $31404 | $17523 |
| Supplemental cash flow disclosures (Note 15) |  |  |  |

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*(See notes to the consolidated financial statements)*

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**Gran Tierra Energy Inc.**

**Consolidated Statements of Shareholders' Equity**

**(Thousands of U.S. Dollars)**

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| | | | |
|:---|:---|:---|:---|
| | **Year Ended December 31,** | **Year Ended December 31,** | **Year Ended December 31,** |
| | **2022** | **2021** | **2020** |
| **Share Capital** |  |  |  |
| Balance, beginning of year | $**10270** | $10270 | $10270 |
| Issuance of shares of Common Stock, net of issuance costs (Note 9) | **2** |  |  |
| Balance, end of year | **10272** | 10270 | 10270 |
| **Additional Paid in Capital** |  |  |  |
| Balance, beginning of year | **1287582** | 1285018 | 1282627 |
| Exercise of stock options (Note 9) | **1298** | 100 |  |
| Stock-based compensation (Note 9) | **2474** | 2464 | 2391 |
| Balance, end of year | **1291354** | 1287582 | 1285018 |
| **Treasury Stock** |  |  |  |
| Balance, beginning of year |  |  |  |
| Re-purchase of shares of Common Stock (Note 9) | **(27317)** |  |  |
| Balance, end of year | **(27317)** |  |  |
| **Deficit** |  |  |  |
| Balance, beginning of year | **(995772)** | (1038254) | (260287) |
| Net income (loss) | **139029** | 42482 | (777967) |
| Balance, end of year | **(856743)** | (995772) | (1038254) |
| **Total Shareholders' Equity** | $**417566** | $302080 | $257034 |

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*(See notes to the consolidated financial statements)*

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**Gran Tierra Energy Inc.**

**Notes to the Consolidated Financial Statements**

**For the Years Ended December 31, 2022, 2021 and 2020**

**(Expressed in U.S. Dollars, unless otherwise indicated)**

**1. Description of Business**

Gran Tierra Energy Inc., a Delaware corporation (the "Company" or "Gran Tierra"), is a publicly traded company focused on international oil and natural gas exploration and production with assets currently in Colombia and Ecuador.

**2. Significant Accounting Policies**

The consolidated financial statements have been prepared in accordance with GAAP.

Significant accounting policies are:

***Basis of Consolidation***

These consolidated financial statements include the accounts of the Company and its controlled subsidiaries. All intercompany accounts and transactions have been eliminated.

***Use of Estimates***

The preparation of financial statements in conformity with GAAP requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities at the date of the consolidated financial statements and the reported amounts of revenues and expenses during the reporting period. Estimated proved and probable reserves volumes and the related cash flows are determined by the independent reservoir engineering specialists and used in several of the estimates made by management in preparing these financial statements. Numerous estimates are required to be made in the reserve report, including forecasted production, forecasted operating royalty, capital cost assumptions, and in certain cases forecasted commodity prices. Significant estimates made by management include: depreciation, depletion, amortization ("DD&A") and impairment of proved oil and gas properties; timing of transfers from oil and gas properties not subject to depletion to the depletable base; asset retirement obligations; determining the value of the consideration transferred and the net identifiable assets acquired and liabilities assumed in connection with business combinations and determining goodwill; assessments of the likely outcome of legal and other contingencies; income taxes; stock-based compensation; and determining the fair value of derivatives. Although management believes these estimates are reasonable, changes in facts and circumstances or discovery of new information may result in revised estimates, and actual results may differ from these estimates.

***Cash and Cash Equivalents***

The Company considers all highly liquid investments with an original maturity of three months or less to be cash equivalents.

***Restricted Cash and Cash Equivalents***

Restricted cash and cash equivalents are comprised of cash and cash equivalents pledged to secure letters of credit and to settle asset retirement obligations. Letters of credit currently secured by cash relate to work commitment guarantees contained in exploration contracts. Restrictions will lapse when work obligations are satisfied pursuant to the exploration contract or an asset retirement obligation is settled. Cash and claims to cash that are restricted as to withdrawal or use for other than current operations, or are designated for expenditure in the acquisition or construction of long-term assets are excluded from the current asset classification. The long-term portion of restricted cash and cash equivalents is included in other long-term assets on the Company's balance sheet.

***Allowance for Doubtful Accounts***

At each reporting date, the Company assesses the expected lifetime credit losses on initial recognition of trade accounts receivable. Credit risk is assessed based on the number of days the receivable has been outstanding and the internal credit assessment of the customer. The expected loss rates are based on payment profiles over a period of 36 months prior to the period-end and the corresponding historical credit losses experienced within this period. Historical loss rates are adjusted to

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reflect current and forward-looking economic factors of the country where the Company sells oil that affect the ability of the customers to settle the receivables. Trade receivables are written off when there is no reasonable expectation of recovery.

***Prepaid Equity Forwards***

The Company is exposed to equity price risk in relation to its long-term incentive plans. The Company utilizes prepaid equity forwards ("PEF") on the equivalent number of the Company's common shares in order to fix the future settlement cost on a portion of its cash-settled long-term incentive plans.

PEF is recorded in other current and long-term assets on the Company's balance sheet at fair value, with changes in fair value recognized as G&A expense in the consolidated statements of operations. The Company utilizes PEF to manage equity price risk in relation to its long-term incentive plans.

***Derivatives***

The Company records derivative instruments on its balance sheet at fair value as either an asset or liability with changes in fair value recognized in the consolidated statements of operations as financial instruments gains or losses. While the Company utilizes derivative instruments to manage the price risk attributable to its expected oil production and foreign exchange risk, it has elected not to designate its derivative instruments as accounting hedges under the accounting guidance.

***Inventory***

Inventory consists of oil in tanks and third party pipelines and supplies and is valued at the lower of cost and net realizable value. The cost of inventory is determined using the weighted average method. Oil inventories include expenditures incurred to produce, upgrade and transport the product to the storage facilities and include operating, depletion and depreciation expenses, and royalties.

***Income Taxes***

Income taxes are recognized using the liability method, whereby deferred tax assets and liabilities are recognized for the future tax consequences attributable to differences between the consolidated financial statements carrying amounts of existing assets and liabilities and their respective tax base, and operating loss and tax credit carryforwards. Deferred tax assets and liabilities are measured using enacted tax rates expected to apply to taxable income in the years in which those temporary differences and carryforwards are expected to be recovered or settled. Valuation allowances are provided if, after considering the available evidence, it is not more likely than not that some or all of the deferred tax assets will be realized.

The tax benefit from an uncertain tax position is recognized when it is more likely than not, based on the technical merits of the position, that the position will be sustained on examination by the taxing authorities. Additionally, the amount of the tax benefit recognized is the largest amount of benefit that has a greater than 50% likelihood of being realized upon ultimate settlement. In evaluating whether a tax position has met the more-likely-than-not recognition threshold, the Company presumes that the position will be examined by the appropriate taxing authority that has full knowledge of all relevant information. The Company recognizes potential penalties and interest related to unrecognized tax benefits as a component of income tax expense.

***Oil and Gas Properties***

The Company uses the full cost method of accounting for its investment in oil and natural gas properties as defined by the Securities and Exchange Commission ("SEC"). Under this method, the Company capitalizes all acquisition, exploration, and development costs incurred for the purpose of finding oil and natural gas reserves, including salaries, benefits, and other internal costs directly attributable to these activities. Costs associated with production and general corporate activities; are expensed as incurred. Separate cost centers are maintained for each country in which the Company incurs costs.

The Company computes depletion of oil and natural gas properties on a quarterly basis using the unit-of-production method based upon production and estimates of proved reserve quantities. Future development costs related to properties with proved reserves are also included in the amortization base for the computation of depletion. The costs of unproved properties are excluded from the amortization base until the properties are evaluated. The cost of exploratory dry wells is transferred to proved properties and thus is subject to amortization immediately upon determination that a well is dry in those countries where proved reserves exist.

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The Company performs a ceiling test calculation each quarter in accordance with SEC Regulation S-X Rule 4-10. In performing its quarterly ceiling test, the Company limits, on a country-by-country basis, the capitalized costs of proved oil and natural gas properties, net of accumulated depletion and deferred income taxes, to the estimated future net cash flows from proved oil and natural gas reserves discounted at 10%, net of related tax effects, plus the lower of cost or fair value of unproved properties included in the costs being amortized. If such capitalized costs exceed the ceiling, the Company will record a write-down to the extent of such excess as a non-cash charge to net income or loss. Any such write-down will reduce earnings in the period of occurrence and result in a lower DD&A rate in future periods. A write-down may not be reversed in future periods, even though higher oil and natural gas prices may subsequently increase the ceiling.

The Company calculates future net cash flows by applying the unweighted average of prices in effect on the first day of the month for the preceding 12-month period, adjusted for location and quality differentials. Such prices are utilized except where different prices are fixed and determinable from applicable contracts for the remaining term of those contracts.

Unproved properties are not depleted pending the determination of the existence of proved reserves. Costs are transferred into the depletable base on an ongoing basis as the properties are evaluated, proved reserves are established, or impairment is determined. Unproved properties are evaluated quarterly to ascertain whether impairment has occurred. This evaluation considers, among other factors, seismic data, requirements to relinquish acreage, drilling results, and activity, remaining time in the commitment period, remaining capital plans, and political, economic, and market conditions. During any period in which factors indicate impairment, the cumulative costs incurred to date for such property are transferred to the full cost pool and subject to depletion. For countries where a reserve base has not yet been established, the impairment is charged to earnings.

In exploration areas, related seismic costs are capitalized in unproved property and evaluated as part of the total capitalized costs associated with a property. Seismic costs related to development projects are recorded in proved properties and therefore subject to depletion as incurred.

Gains and losses on the sale or other disposition of oil and natural gas properties are not recognized, unless the gain or loss would significantly alter the relationship between capitalized costs and proved reserves of oil and natural gas attributable to a country.

***Asset Retirement Obligation***

The Company records an estimated liability for future costs associated with the abandonment of its oil and gas properties, including the costs of reclamation of drilling sites. The Company records the fair value of a liability for a legal obligation to retire an asset in the period in which the liability is incurred with an offsetting increase to the related oil and gas properties. The fair value of an asset retirement obligation is measured by reference to the expected future cash outflows required to satisfy the retirement obligation discounted at the Company's credit-adjusted risk-free interest rate. Accretion expense is recognized over time as the discounted liabilities are accreted to their expected settlement value, while the asset retirement cost is amortized over the estimated productive life of the related assets. The accretion of the asset retirement obligation and amortization of the asset retirement cost is included in DD&A. If estimated future costs of an asset retirement obligation change, an adjustment is recorded to both the asset retirement obligation and oil and gas properties. Revisions to the estimated asset retirement obligation can result from changes in retirement cost estimates, revisions to estimated inflation rates, and changes in the estimated timing of abandonment.

***Other Capital Assets***

Other capital assets, including additions and replacements, are recorded at cost upon acquisition and include furniture, fixtures, leasehold improvement, computer equipment, automobiles and right-of-use assets for operating and finance leases. Depreciation for furniture and fixtures, computer equipment, and automobiles is provided using the straight-line method over the useful life of the asset. Leasehold improvements and right-of-use assets for operating and finance leases are depreciated on a straight-line basis over the shorter of the estimated useful life and the term of the related lease. The cost of repairs and maintenance is charged to expenses as incurred.

***Leases***

At the inception of a contract, the Company assesses whether a contract is, or contains, a lease. A contract is, or contains, a lease if the contract conveys the right to control the use of an identified asset for a period of time in exchange for consideration. At the inception of a contract that contains a lease component, the Company allocates the consideration in the contract to each lease and non-lease component on the basis of their relative stand-alone prices. The Company recognizes a right-of-use asset

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and a lease liability at the lease commencement date. The right-of-use asset is initially measured at cost and subsequently at cost less any accumulated depreciation and impairment losses and adjusted for certain remeasurements of the lease liability.

The lease liability is initially measured at the present value of the lease payments that are not paid at the commencement date, discounted using the interest rate implicit in the lease, or, if that rate cannot be readily determined, the Company's incremental borrowing rate. Generally, the Company uses its incremental borrowing rate as the discount rate. The lease liability is subsequently increased by the interest cost on the lease liability and decreased by lease payments made. It is remeasured when there is a change in future lease payments arising from a change in an index or rate, a change in the estimate of the amount expected to be payable under a residual value guarantee, or as appropriate, changes in the assessment of whether a purchase or extension option is reasonably certain to be exercised or a termination option is reasonably certain not to be exercised.

The Company has applied judgment to determine the lease term for contracts which include renewal or termination options. The assessment of whether the Company is reasonably certain to exercise such options impacts the lease term, which significantly affects the amount of lease liabilities and right-of-use assets recognized.

***Revenue from Contracts with Customers***

The Company recognizes revenue when it transfers control of the product to a customer. This generally occurs at the time the customer obtains legal title to the product and when it is physically transferred to the delivery point agreed with the customer. Revenue is recognized based on the consideration specified in contracts with customers. Revenue represents the Company's share and is recorded net of royalty payments to governments and other mineral interest owners.

The Company evaluates its arrangement with third parties and partners to determine if the Company acts as a principal or an agent. In making this evaluation, management considers if the Company obtains control of the product delivered, which is indicated by the Company having the primary responsibility for the delivery of the product, having the ability to establish prices, or having inventory risk. If the Company acts in the capacity of an agent rather than as a principal in the transaction, then the revenue is recognized on a net basis, only reflecting the fee realized by the Company from the transaction.

Tariffs, tolls, and fees charged to other entities for the use of pipelines owned by the Company are evaluated by management to determine if these originate from contracts with customers or from incidental arrangements. When determining if the Company acted as a principal or an agent in transactions, management determines if the Company obtains control of the product. As part of this assessment, management considers criteria for revenue recognition set out in Accounting Standard Codification ("ASC") 606.

***Stock-based Compensation***

The Company records stock-based compensation expense in its consolidated financial statements measured at fair value of the awards that are ultimately expected to vest. Fair values are determined using pricing models such as the Black-Scholes-Merton or Monte Carlo simulation stock option-pricing models and/or observable share prices. For equity-settled stock-based compensation awards, fair values are determined at the grant date, and the expense, net of estimated forfeitures, is recognized using the accelerated method over the requisite service period. An adjustment is made to compensation expense for any difference between the estimated forfeitures and the actual forfeitures. For cash-settled stock-based compensation awards, fair values are determined at each reporting date, and periodic changes are recognized as compensation costs, with a corresponding change to liabilities.

The Company uses historical data to estimate the expected term used in the Black-Scholes option pricing model, option exercises, and employee departure behavior. Expected volatilities used in the fair value estimate are based on the historical volatility of the Company's shares. The risk-free rate for periods within the expected term of the stock options is based on the U.S. Treasury yield curve in effect at the time of grant.

Stock-based compensation expense is capitalized as part of oil and natural gas properties or expensed as part of G&A or operating expenses, as appropriate.

***Foreign Currency Translation***

The functional currency of the Company, including its subsidiaries, is the U.S. dollar. Monetary items are translated into the reporting currency at the exchange rate in effect at the balance sheet date, and non-monetary items are translated at historical

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exchange rates. Revenue and expense items are translated in a manner that produces substantially the same reporting currency amounts that would have resulted had the underlying transactions been translated on the dates they occurred.

DD&A expense on assets is translated at the historical exchange rates similar to the assets to which they relate. Gains and losses resulting from foreign currency transactions, which are transactions denominated in a currency other than the entity's functional currency, are recognized in net income or loss.

***Earnings (Loss) per Share***

Basic earnings (loss) per share is calculated by dividing net income or loss attributable to common shareholders by the weighted average number of shares of Common Stock issued and outstanding during each period. Diluted net income per share is calculated by adjusting the weighted average number of shares of Common Stock outstanding for the dilutive effect, if any, of share equivalents. The Company uses the treasury stock method to determine the dilutive effect. This method assumes that all Common Stock equivalents have been exercised at the beginning of the period (or at the time of issuance, if later), and that the funds obtained thereby were used to purchase shares of Common Stock of the Company at the volume weighted average trading price of shares of Common Stock during the period.

***Risks and Measurement Uncertainty***

The impacts of the Covid-19 pandemic and the recovery therefrom coupled with several factors including higher levels of uncertainty due to the Russian invasion of Ukraine, volatility in energy markets, rising interest and inflation rates and constrained supply chains have created a higher level of volatility and uncertainty. Management has, to the reasonable extent, incorporated known facts and circumstances into the estimates made, however, the increased levels of uncertainly and volatility making accounting estimates more judgmental and the actual results could differ materially from estimates.

**3. Accounts Receivable**

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| | | |
|:---|:---|:---|
| | **As at December 31,** | **As at December 31,** |
| **(Thousands of U.S. Dollars)** | **2022** | **2021** |
| Trade | $**5601** | $9193 |
| Other | **5105** | 3992 |
| **Total Accounts Receivable** | $**10706** | $13185 |

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**4. Taxes Receivable (Payable)**

The table below shows the break-down of taxes receivable and payable, comprised of value added tax ("VAT") and income tax:

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| | | |
|:---|:---|:---|
| | **Year Ended December 31,** | **Year Ended December 31,** |
| **(Thousands of U.S. Dollars)** | **2022** | **2021** |
| **Taxes Receivable** |  |  |
| **Current** |  |  |
| &nbsp;&nbsp;VAT Receivable | $**54** | $21918 |
| &nbsp;&nbsp;Income Tax Receivable | **—** | 23588 |
|  | $**54** | $45506 |
| **Long-Term** |  |  |
| &nbsp;&nbsp;Income Tax Receivable | **27796** | 17522 |
|  | $**27796** | $17522 |
| **Taxes Payable** |  |  |
| **Current** |  |  |
| &nbsp;&nbsp;VAT Payable | $**(11784)** | $(6620) |
| &nbsp;&nbsp;Income Tax Payable | $**(47194)** | $— |
|  | $**(58978)** | $(6620) |
| **Total Taxes (Payable) Receivable** | $**(31128)** | $56408 |

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The following table shows the movement of VAT and income tax receivable and payable for the past two years:

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| | | | |
|:---|:---|:---|:---|
| **(Thousands of U.S. Dollars)** | **VAT Receivable (Payable)** | **Income Tax Receivable (Payable)** | **Total Taxes Receivable (Payable)** |
| **Balance, December 31, 2020** | $64462 | $28098 | $92560 |
| &nbsp;&nbsp;Collected through direct government refunds | (604) | (14228) | (14832) |
| &nbsp;&nbsp;Collected through sales contracts | (105858) |  | (105858) |
| &nbsp;&nbsp;Taxes paid | 63792 | 36352 | 100144 |
| &nbsp;&nbsp;Current tax expense |  | (4479) | (4479) |
| &nbsp;&nbsp;Foreign exchange loss | (6494) | (4633) | (11127) |
| **Balance, December 31, 2021** | $15298 | $41110 | $56408 |
| &nbsp;&nbsp;Collected through direct government refunds | (448) | (15956) | (16404) |
| &nbsp;&nbsp;Collected through sales contracts | (157117) |  | (157117) |
| &nbsp;&nbsp;Taxes paid | 130716 | 37052 | 167768 |
| &nbsp;&nbsp;Current tax expense |  | (80566) | (80566) |
| &nbsp;&nbsp;Foreign exchange loss | (179) | (1038) | (1217) |
| **Balance, December 31, 2022** | $**(11730)** | $**(19398)** | $**(31128)** |

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**5. Property, Plant and Equipment**

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| | | |
|:---|:---|:---|
| | **As at December 31,** | **As at December 31,** |
| **(Thousands of U.S. Dollars)** | **2022** | **2021** |
| Oil and natural gas properties |  |  |
| &nbsp;&nbsp;Proved | $**4617804** | $4302473 |
| &nbsp;&nbsp;Unproved | **74471** | 131865 |
|  | **4692275** | 4434338 |
| Other <sup>(1)</sup> | **61386** | 34943 |
|  | **4753661** | 4469281 |
| Accumulated depletion, depreciation and impairment | **(3652759)** | (3473484) |
|  | $**1100902** | $995797 |

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<sup>(1)</sup> The "other" category includes $38.9 million right-of-use assets for operating and finance leases which had a net book value of $24.6 million as at December 31, 2022 (December 31, 2021 - $13.9 million which had a net book value of $3.9 million).

During the year ended December 31, 2022, the Company entered into various lease contracts related to office lease, generators and polymer injection equipment and capitalized $24.8 million right-of-use assets related to those contracts.

Depletion and depreciation expense on property, plant and equipment for the year ended December 31, 2022, was $175.8 million (2021 - $135.7 million; 2020 - $160.8 million). A portion of depletion and depreciation expense was recorded as oil inventory in each year.

***Unproved Oil and Natural Gas Properties***

At December 31, 2022, unproved oil and natural gas properties consist of exploration lands held in Colombia and Ecuador. Unproved oil and natural gas properties are being held for their exploration value and are not being depleted pending determination of the existence of proved reserves. Gran Tierra will continue to assess the unproved properties over the next several years as proved reserves are established and as exploration warrants whether or not future areas will be developed. The Company expects that approximately 100% of costs not subject to depletion at December 31, 2022, will be transferred to the depletable base within the next five years.

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The following is a summary of Gran Tierra's oil and natural gas properties not subject to depletion as at December 31, 2022:

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| | | | | | |
|:---|:---|:---|:---|:---|:---|
| | **Costs Incurred in** | **Costs Incurred in** | **Costs Incurred in** | **Costs Incurred in** | **Costs Incurred in** |
| **(Thousands of U.S. Dollars)** | **2022** | **2021** | **2020** | **Prior to 2020** | **Total** |
| Acquisition costs - Colombia | $— | $— | $— | $10268 | $10268 |
| Exploration costs - Colombia | 5814 | 1728 | 9495 | 43925 | 60962 |
| Exploration costs - Ecuador | 3106 | 2 |  | 133 | 3241 |
|  | $**8920** | $**1730** | $**9495** | $**54326** | $**74471** |

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**6. Impairment**

***Asset Impairment***

The Company did not have any impairment losses during the years ended December 31, 2022 and 2021, respectively. The Company recorded impairment of oil and gas assets of $560.3 million and impairment of inventory of $4.2 million for the year ended December 31, 2020.

*(i)Oil and gas property impairment*

For the years ended December 31, 2022 and 2021, the Company had no ceiling test impairment losses. For the year ended December 31, 2020, the Company recorded $560.3 million of ceiling test impairment losses. The Company follows the full cost method of accounting for its oil and gas properties. Under this method, the net book value of properties on a country-by-country basis, less related deferred income taxes, may not exceed a calculated "ceiling". The ceiling is the estimated after-tax future net revenues from proved oil and gas properties, discounted at 10% per year. In calculating discounted future net revenues, oil and natural gas prices are determined using the average price for the 12 months prior to the ending date of the period covered by the balance sheet, calculated as an unweighted arithmetic average of the first day-of-the month price for each month within such period. That average price is then held constant, except for fixed and determinable changes by existing contracts. Therefore, ceiling test estimates are based on historical prices discounted at 10% per year, and should not be assumed that estimates of future net revenues represent the fair market value of the Company's reserves. In accordance with GAAP, Gran Tierra used an average Brent price of $97.98 per bbl for of the December 31, 2022 ceiling test calculations (December 31, 2021, and 2020 - $68.92 and $43.43 per bbl, respectively).

The Company has considered the impact of the evolving worldwide demand for energy and global advancement of alternative sources of energy that are not sourced from fossil fuels in the ceiling test impairment assessment on oil and gas properties. The estimated ceiling amount of the Company's oil and gas properties was based on proved reserves, the life of which is generally less than 16 years. The ultimate period in which global energy markets can transition from carbon based sources to alternative energy is highly uncertain. However, the majority of the cash flows associated with proved reserves per the 2022 reserve report should be realized prior to the potential elimination of carbon-based energy.

At December 31, 2022, a specific adjustment to the discount rate used in the ceiling test to account for the risk of the evolving demand for energy is not permitted as under the full cost accounting the 10% discount rate is prescribed.

*(ii)Inventory impairment*

For the years ended December 31, 2022 and 2021, the Company had no inventory impairment losses. For the year ended December 31, 2020, there were inventory impairment losses of $4.2 million due to the decline in commodity pricing.

***Goodwill impairment***

The entire goodwill balance of $102.6 million was impaired during the year ended December 31, 2020.

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**7. Accounts Payable and Accrued Liabilities** 

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| | | |
|:---|:---|:---|
| | **Year Ended December 31,** | **Year Ended December 31,** |
| **(Thousands of U.S. Dollars)** | **2022** | **2021** |
| Trade | $**114263** | $91101 |
| Royalties | **2760** | 14761 |
| Employee compensation | **3051** | 4382 |
| Other | **47505** | 38450 |
|  | $**167579** | $148694 |

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**8. Debt and Debt Issuance Costs**

The Company's debt at December 31, 2022 and 2021, was as follows:

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| | | |
|:---|:---|:---|
| | **As at December 31,** | **As at December 31,** |
| **(Thousands of U.S. Dollars)** | **2022** | **2021** |
| **Current** |  |  |
| &nbsp;&nbsp;Revolving credit facility | $**—** | $67500 |
| &nbsp;&nbsp;Unamortized debt issuance costs | **—** | (513) |
| **Current portion of long-term debt** | $**—** | $66987 |
| **Long Term** |  |  |
| &nbsp;&nbsp;6.25% Senior Notes | $**279909** | $300000 |
| &nbsp;&nbsp;7.75% Senior Notes | **300000** | 300000 |
| &nbsp;&nbsp;Unamortized debt issuance costs <sup>(1)</sup> | **(10992)** | (14030) |
| &nbsp;&nbsp;Long-term lease obligation <sup>(2)</sup> | **20676** | 1434 |
| &nbsp;&nbsp;**Long-term debt** | $**589593** | $587404 |
| **Total Debt** | $**589593** | $654391 |

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<sup>(1)</sup> Includes $0.3 million of unamortized deferred financing fees related to credit facility

<sup>(2)</sup> The current portion of the lease obligation has been included in accounts payable and accrued liabilities on the Company's balance sheet

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;and totaled $4.8 million as at December 31, 2022 (December 31, 2021 - $3.3 million).

***Senior Notes***

At December 31, 2022, the Company had $300.0 million of 7.75% Senior Notes due 2027 (the "7.75% Senior Notes") and $279.9 million of 6.25% Senior Notes due 2025 (the "6.25% Senior Notes" and, together with the 7.75% Senior Notes, the "Senior Notes").

The 7.75% Senior Notes bear interest at a rate of 7.75% per year, payable semi-annually in arrears on May 23 and November 23 of each year, beginning on November 23, 2019. The 7.75% Senior Notes will mature on May 23, 2027, unless earlier redeemed or re-purchased.

Before May 23, 2023, the Company may, at its option, redeem all or a portion of the 7.75% Senior Notes at 100% of the principal amount plus accrued and unpaid interest and a "make-whole" premium. Thereafter, the Company may redeem all or a portion of the 7.75% Senior Notes plus accrued and unpaid interest applicable to the date of the redemption at the following redemption prices: 2023 - 103.875%; 2024 - 101.938%; 2025 and thereafter - 100%.

The 6.25% Senior Notes bear interest at a rate of 6.25% per year, payable semi-annually in arrears on February 15 and August 15 of each year, beginning on August 15, 2018. The 6.25% Senior Notes will mature on February 15, 2025, unless earlier redeemed or re-purchased.

The Company may redeem all or a portion of the 6.25% Senior Notes plus accrued and unpaid interest applicable to the date of the redemption at the following redemption prices: 2023 - 101.563%; 2024 and thereafter - 100%.

During the year ended December 31, 2022, the Company re-purchased in the open market $20.1 million of 6.25% Senior Notes for cash consideration of $17.3 million, including interest payable of $0.1 million. The re-purchase resulted in a $2.6 million

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gain, which included the write-off of deferred financing fees of $0.3 million. The re-purchased 6.25% Senior Notes were not cancelled and were held by the Company as treasury bonds as at December 31, 2022.

***Credit Facility***

During the year ended December 31, 2022, the Company terminated its prior revolving credit facility agreement and replaced the prior facility with a new credit facility agreement. The credit facility has a borrowing base of up to $150.0 million with $100.0 million as an initial commitment available at December 31, 2022, and an option for an additional $50.0 million upon mutual agreement by the Company and the lender. The credit facility bears interest based on the secured overnight financing rate posted by the Federal Reserve Bank of New York plus a credit margin of 6.00% and a credit-adjusted spread of 0.26%. Undrawn amounts under the credit facility bear interest at 2.10% per annum, based on the amount available. The credit facility is secured by the Company's Colombian assets and economic rights. It has a final maturity date of August 15, 2024, which may be extended to February 18, 2025, upon the satisfaction of certain conditions. The availability period for the draws is six months commencing from the date of the credit facility being August 18, 2022. As of December 31, 2022, the credit facility remained undrawn.

Under the terms of the credit facility, the Company is required to maintain compliance with the following financial covenants:

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;i.Global Coverage Ratio of at least 150% is calculated using the net present value of the consolidated future cash flows of the Company up to the final maturity date discounted at 10% over the outstanding amount on the credit facility at each reporting period. The net present value of the consolidated future cash flows of the Company is required to be based on 80% of the prevailing ICE Brent forward strip.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;ii.Prepayment Life Coverage Ratio of at least 150% calculated using the estimated aggregate value of commodities to be delivered under the commercial contract from the commencement date to the final maturity date based on 80% of the prevailing ICE Brent forward strip and adjusted for quality and transportation discounts over the outstanding amount on the credit facility including interest and all other costs payable to the lender.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;i.Liquidity ratio where the Company's projected sources of cash exceed projected uses of cash by at least 1.15 times in each quarter period included in one year consolidated future cash flows. The future cash flows represent forecasted expected cash flows from operations, less anticipated capital expenditures, and certain other adjustments. The commodity pricing assumption used in this covenant is required to be 90% of the prevailing Brent forward strip for the projected future cash flows.

Subsequent to December 31, 2022, the availability period for draws under the credit facility were extended until August 20, 2023.

***Leases***

During the year ended December 31, 2022, the Company recorded finance leases for power generators and polymer injection equipment totaling $16.5 million, and one operating office lease of $8.3 million. The finance leases have contractual lives ranging from 2 to 5 years, and were recorded at discount rates ranging from approximately 5.7% to 9.6%. The operating lease has a term of 6.5 years and was measured using incremental borrowing rate of approximately 7.0%.

***Interest Expense***

The following table presents the total interest expense recognized in the accompanying consolidated statements of operations:

---

| | | | |
|:---|:---|:---|:---|
| | **Year Ended December 31,** | **Year Ended December 31,** | **Year Ended December 31,** |
| **(Thousands of U.S. Dollars)** | **2022** | **2021** | **2020** |
| Contractual interest and other financing expenses | $**42965** | $50572 | $50515 |
| Amortization of debt issuance costs | **3528** | 3809 | 3625 |
|  | $**46493** | $54381 | $54140 |

---

The Company incurred debt issuance costs in connection with the issuance of the Senior Notes and its credit facility. As at December 31, 2022, the balance of unamortized debt issuance costs has been presented as a direct deduction against the carrying amount of debt and is being amortized to interest expense using the effective interest method over the term of the debt.

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 **9. Share Capital**

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| | |
|:---|:---|
| | **Shares of Common Stock** |
| Shares issued and outstanding, December 31, 2020  | 366981556 |
| Options exercised | 162944 |
| Shares issued and outstanding, December 31, 2021  | 367144500 |
| Options exercised | 1754119 |
| Shares issued, December 31, 2022 | **368898619** |
| Treasury stock | **(22747462)** |
| Shares issued and outstanding at December 31, 2022 | **346151157** |

---

The Company's authorized share capital consists of 595 million shares of capital stock, of which 570 million was designated as Common Stock, par value $0.001 per share and 25 million as Preferred Stock, par value $0.001 per share.

During the year ended December 31, 2022, the Company implemented a share re-purchase program (the "2022 Program") through the facilities of the Toronto Stock Exchange ("TSX") and eligible alternative trading platforms in Canada. Under the 2022 Program, the Company is able to purchase at prevailing market prices up to 36,033,969 shares of Common Stock, representing approximately 10% of the issued and outstanding shares of Common Stock as of August 22, 2022. The 2022 Program will expire on August 31, 2023, or earlier if the 10% share maximum was reached. Re-purchases are subject to the availability of stock, prevailing market conditions, the trading price of the Company's stock, the Company's financial performance and other conditions.

During the year ended December 31, 2022 the Company re-purchased 22,747,462 shares at a weighted average price of approximately $1.20 per share. The re-purchased shares were held by the Company and were recorded as treasury stock as of December 31, 2022.

***Equity Compensation Awards***

The Company has an equity compensation program for its executives, employees, and directors. Executives and employees are given equity compensation grants that vest based on a recipient's continued employment. In the case of Performance Share Units ("PSUs"), the number of units that vest is dependent upon the achievement of specific key performance measures. Equity based awards consist of 80% of PSUs and 20% of stock options. The Company's stock-based compensation awards outstanding as at December 31, 2022, include PSUs, deferred share units ("DSUs"), and stock options.

In accordance with the 2007 Equity Incentive Plan, as amended, the Company's Board of Directors is authorized to issue options or other rights to acquire shares of the Company's Common Stock. On June 27, 2012, the shareholders of Gran Tierra approved an amendment to the Company's 2007 Equity Incentive Plan, which increased the Common Stock available for issuance thereunder from 23,306,100 shares to 39,806,100 shares. On June 2, 2021, the shareholders of Gran Tierra approved an amendment to the Company's 2007 Equity Incentive Plan, which increased the Common Stock available for issuance thereunder from 39,806,100 shares to 54,806,100 shares. On May 4, 2022, the shareholders of Gran Tierra approved an amendment to the Company's 2007 Equity Incentive Plan, which increased the Common Stock available for issuance thereunder from 54,806,100 shares to 59,806,100 shares.

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The following table provides information about PSU, DSU and stock option activity for the year ended December 31, 2022:

---

| | | | | |
|:---|:---|:---|:---|:---|
| | **PSUs** | **DSUs** | **Stock Options** | **Stock Options** |
| | **Number of Outstanding Share Units** | **Number of Outstanding Share Units** | **Number of Outstanding Stock Options** | **Weighted Average Exercise Price ($)** |
| Balance, December 31, 2021 | 30365196 | 5710764 | 17848722 | 1.20 |
| Granted | 6841907 | 851095 | 2859030 | 1.40 |
| Exercised | (4396646) |  | (1754119) | 0.74 |
| Forfeited | (1282224) |  | (292887) | 1.35 |
| Expired |  |  | (1357886) | 2.77 |
| Balance, December 31, 2022 | 31528233 | 6561859 | 17302860 | 1.15 |
| Vested and exercisable, at December 31, 2022 |  |  | 9056863 | 1.31 |
| Vested, or expected to vest, at December 31, 2022 through the life of the options |  |  | 17022420 | 1.15 |

---

For the year ended December 31, 2022, Stock-based compensation expense was $9.0 million (2021 - $8.4 million; 2020 - $1.2 million) and was recorded in G&A expenses.

At December 31, 2022, there was $10.5 million (December 31, 2021 and 2020 - $11.8 million and $5.9 million, respectively) of unrecognized compensation cost related to unvested PSUs and stock options to be recognized over a weighted average period of 1.5 years. The weighted average remaining contractual term of options vested, or expected to vest, at December 31, 2022, is 2.5 years.

*PSUs*

PSUs entitle the holder to receive, at the option of the Company, either the underlying number of shares of the Company's Common Stock upon vesting of such units or a cash payment equal to the value of the underlying shares. PSUs will cliff vest after three years, subject to the grantee's continued employment. Upon vesting, the underlying number of Common Shares or the cash payment equivalent to their value may range from nil to 200% of the number of PSU's vested, based on the Company's performance with respect to the applicable performance targets. As at December 31, 2022, 12.4 million (December 31, 2021 - 4.4 million) of PSUs had vested and will settle in cash. The performance targets for the PSUs outstanding as at December 31, 2022, were as follows:

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;i.50% of the award is subject to targets relating to the total shareholder return ("TSR") of the Company against a group of peer companies;

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;ii.2020 and 2021 awards: 25% of the award is subject to targets relating to net asset value ("NAV") of the Company per share, and NAV is based on before tax net present value discounted at 10% of proved plus probable reserves;

2022 awards: compliance with financial covenants and $20 million free cash flow <sup>(1)</sup>; and

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;iii.25% of the award is subject to targets relating to the execution of corporate strategy.

<sup>(1)</sup> Defined as funds flow from operations less capital expenditures before exploration expense and short-term incentive plan.

The compensation cost of PSUs is subject to adjustment based upon the attainability of these performance targets. No settlement will occur with respect to the portion of the PSU award subject to each performance target for results below the applicable minimum threshold for that target. In excess of the target number granted, PSUs will vest and be settled if performance exceeds the targeted performance goals. The Company currently intends to settle the PSUs in cash.

*DSUs*

DSUs entitle the holder to receive either the underlying number of shares of the Company's Common Stock upon vesting of such units or, at the option of the Company, a cash payment equal to the value of the underlying shares. Once a DSU is vested,

------

it is immediately settled. During the year ended December 31, 2022, DSUs were granted to directors and will be settled at such time the grantee ceases to be a member of the Board of Directors. The Company currently intends to settle the DSUs in cash.

***Stock Options***

Each stock option permits the holder to purchase one share of Common Stock at the stated exercise price. The exercise price equals the market price of a share of Common Stock at the time of grant and vest over three years. The term of the stock options granted is five years or three months after the grantee's end of service to the Company, whichever occurs first.

For the year ended December 31, 2022, 1,754,119 stock options were exercised, and $1.3 million cash proceeds were received (2021- 162,944 stock options were exercised, and $0.1 million cash proceeds were received and 2020 - no options were exercised and no cash proceeds received).

At December 31, 2022 and 2021, the weighted average remaining contractual term for outstanding stock options was 2.5 and 3.0 years, respectively, and for exercisable stock options was 1.9 and 2.2 years, respectively.

The fair value of each stock option award is estimated on the date of grant using the Black-Scholes option-pricing model based on assumptions noted in the following table:

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| | | | |
|:---|:---|:---|:---|
| | **Year Ended December 31,** | **Year Ended December 31,** | **Year Ended December 31,** |
| | **2022** | **2021** | **2020** |
| Dividend yield (per share) | **Nil** | Nil | Nil |
| Volatility | **77% to 81%** | 71% to 80% | 50% to 69% |
| Weighted average volatility | **77%** | 78% | 52% |
| Risk-free interest rate | **1.4% to 4.0%** | 0.4% to 0.9% | 0.3% to 1.7% |
| Expected term | **5 years** | 4 - 5 years | 5 years |

---

The weighted average grant date fair value for options granted in the year ended December 31, 2022 was $0.88 (2021 - $0.47; 2020 - $0.29) per option. The weighted average grant date fair value for options vested in the year ended December 31, 2022 was $0.58 (2021 - $0.52; 2020 - $0.79) per option. The total fair value of stock options vested during year ended December 31, 2022 was $2.2 million (2021 - $2.1 million; 2020 - $1.9 million).

***Weighted Average Shares Outstanding***

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| | | | |
|:---|:---|:---|:---|
| | **Year Ended December 31,** | **Year Ended December 31,** | **Year Ended December 31,** |
| | **2022** | **2021** | **2020** |
| Weighted average number of common shares outstanding | **364455456** | 367022903 | 366981556 |
| Shares issuable pursuant to stock options | **11847316** | 1592092 |  |
| Shares assumed to be purchased from proceeds of stock options | **(7022675)** | (741606) |  |
| Weighted average number of diluted common shares outstanding | **369280097** | 367873389 | 366981556 |

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For the year ended December 31, 2022, 5,900,245 options were excluded from the diluted earnings (loss) per share calculation as the options were anti-dilutive (2021 - 15,559,816; 2020 - all options)

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**10. Asset Retirement Obligation**

Changes in the carrying amounts of the asset retirement obligation associated with the Company's oil and natural gas properties were as follows:

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| | | |
|:---|:---|:---|
| | **Year Ended December 31,** | **Year Ended December 31,** |
| **(Thousands of U.S. Dollars)** | **2022** | **2021** |
| Balance, beginning of year | $**54525** | $48214 |
| Liability incurred | **5025** | 4122 |
| Settlements | **(2630)** | (805) |
| Accretion | **4498** | 4180 |
| Revisions in estimated liability | **2081** | (1186) |
| Balance, end of year | $**63499** | $54525 |
| Current<sup>(1)</sup> | $**141** | $— |
| Long-term | $**63358** | $54525 |
| Balance, end of year | $**63499** | $54525 |

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<sup>(1)</sup> Current portion of asset retirement obligation is included into accounts payable and accrued liabilities on the Company's balance sheet

Revisions in estimated liabilities relate primarily to changes in estimates of asset retirement costs and include, but are not limited to, revisions of estimated inflation rates, changes in property lives and the expected timing of settling asset retirement obligations. At December 31, 2022, the fair value of assets that was legally restricted for purposes of settling asset retirement obligations was $6.5 million (December 31, 2021 - $5.3 million). These assets were accounted for as restricted cash and cash equivalents on the Company's balance sheet (Note 15).

**11. Revenue**

All of the Company's revenue is generated from oil sales at prices that reflect the blended prices received upon shipment by the purchaser at defined sales points or are defined by contract relative to ICE Brent and adjusted for Vasconia or Castilla crude differentials, and quality and transportation discounts each month. For the year ended December 31, 2022, 100% (2021 and 2020 - 100%) of the Company's revenue resulted from oil sales and quality and transportation discounts were 17% (2021 - 15%; 2020 - 25%) of the ICE Brent price. During the year ended December 31, 2022, the Company's production was sold primarily to two major customers in Colombia equaling 78% and 22% of total sales volumes (2021 - three, representing 66%, 19% and 12% of sales volumes and 2020 - three, representing 41%, 31% and 25% of sales volumes)

As at December 31, 2022, accounts receivable included nil accrued sales revenue related to December 2022 production (as at December 31, 2021 - nil and December 31, 2020 - $0.1 million related to December production of each respective year).

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**12. Taxes**

The income tax expense and recovery reported differs from the amount computed by applying the statutory rate to income (loss) before income taxes for the following reasons:

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| | | | |
|:---|:---|:---|:---|
| | **Year Ended December 31,** | **Year Ended December 31,** | **Year Ended December 31,** |
| **(Thousands of U.S. Dollars)** | **2022** | **2021** | **2020** |
| Income (loss) before income taxes |  |  |  |
| &nbsp;&nbsp;United States | $**(38161)** | $(31329) | $(19065) |
| &nbsp;&nbsp;Foreign | **283096** | 54465 | (834296) |
|  | **244935** | 23136 | (853361) |
| Statutory rate <sup>(1)</sup> | **35%** | 31% | 32% |
| Income tax expense (recovery) expected | **85727** | 7172 | (273076) |
| &nbsp;&nbsp;Impact of foreign taxes | **8876** | 9723 | 26668 |
| &nbsp;&nbsp;Foreign currency translation | **(4641)** | 14450 | 48734 |
| &nbsp;&nbsp;Goodwill Impairment | **—** |  | 32826 |
| &nbsp;&nbsp;Stock-based compensation | **5804** | 1708 | 666 |
| &nbsp;&nbsp;Change in valuation allowance | **2386** | (53434) | 75241 |
| &nbsp;&nbsp;Non-deductible third party royalty in Colombia | **3422** | 1568 | 697 |
| &nbsp;&nbsp;Other permanent differences | **4332** | (1058) | 5349 |
| &nbsp;&nbsp;Non-deductible investment loss | **—** | 525 | 7501 |
| Total income tax expense (recovery) | $**105906** | $(19346) | $(75394) |
| Effective tax rate | **43%** | (84)% | 9% |
| Current income tax expense |  |  |  |
| &nbsp;&nbsp;Foreign | **80566** | 4479 | 754 |
|  | **80566** | 4479 | 754 |
| Deferred income tax expense (recovery) |  |  |  |
| &nbsp;&nbsp;Foreign | **25340** | (23825) | (76148) |
| Total income tax expense (recovery) | $**105906** | $(19346) | $(75394) |

---

<sup>(1)</sup> The tax rate is the statutory rate in Colombia.

In general, it is the Company's practice and intention to reinvest the earnings of our non-U.S. subsidiaries in such subsidiaries' operations. As of December 31, 2022, the Company has not made a provision for U.S. or additional foreign withholding taxes on the investments in foreign subsidiaries that are indefinitely reinvested. Generally, such amounts become subject to taxation upon the remittance of dividends and under certain other circumstances.

In December 2022, the Colombian Government enacted a new tax reform bill which is effective January 1<sup>st</sup>, 2023. The reform includes significant changes to the income tax regime applicable to oil companies, including an increase in the capital gain tax rate to 15% (from 10%), increase in the dividend tax rate to 20% (from 10%); the elimination of the tax deductibility of royalties paid-in cash and cost associated to royalties paid-in kind in the calculation of taxable income; and the introduction of a surcharge to the current 35% tax rate. The surcharge will be determined by comparing the average inflation-adjusted Brent price during the taxation year to the monthly inflation-adjusted Brent price during the prior 120 months. When the Brent price during the taxation year exceeds the 30th percentile of the historical price range a 5% surtax is applied. It increases to 10% and 15% when the Brent price during the taxation year exceeds the 45th and 60th percentiles, respectively. GTE expects the 2023 surtax to be 15% for an aggregated income tax rate of 50%. The tax rates applied to the calculation of deferred income taxes have been adjusted to reflect this change.

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The table below presents the components of the deferred tax assets as at December 31, 2022 and 2021:

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| | | |
|:---|:---|:---|
| | **As at December 31,** | **As at December 31,** |
| **(Thousands of U.S. Dollars)** | **2022** | **2021** |
| &nbsp;&nbsp;Tax benefit of operating loss carryforwards | $**53720** | $67134 |
| &nbsp;&nbsp;Book basis in excess of tax basis | **(20349)** | 16815 |
| &nbsp;&nbsp;Foreign tax credits and other accruals | **103700** | 91381 |
| &nbsp;&nbsp;Tax benefit of capital loss carryforwards | **—** | 28050 |
| &nbsp;&nbsp;Deferred tax assets before valuation allowance | **137071** | 203380 |
| &nbsp;&nbsp;Valuation allowance | **(114109)** | (141886) |
| Net deferred tax assets | $**22962** | $61494 |
| Deferred tax assets  | **22990** | 61494 |
|  | **22990** | 61494 |
| Deferred tax liabilities  | **28** |  |
|  | **28** |  |
| Net deferred tax assets | $**22962** | $61494 |

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At December 31, 2022, the Company has not recognized the benefit of unused non-capital loss carryforwards of $91.3 million (2021 - $62.1 million, 2020 - $46.0 million) for federal purposes in the United States, which expire from 2030 to 2042.

At December 31, 2022, the Company has recognized the benefit of unused non-capital loss carryforwards of $40.7 million (2021 - $102.4 million, 2020 - $115.6 million), out of a total of $59.5 million; and no tax credits (2021 - no tax credits, 2020 - $1.0 million), out of a total of $2.1 million, for federal purposes in Colombia. The Company's remaining tax losses are entitled to a carryforward period of 12 years.

As at December 31, 2022 and 2021, Gran Tierra had no unrecognized tax benefits and related interest and penalties included in its deferred tax assets and current tax liabilities on the consolidated balance sheet. The Company does not anticipate any material changes with respect to unrecognized tax benefit within the next twelve months. The Company had no other significant interest or penalties related to taxes included in the consolidated statement of operations for the year ended December 31, 2022.

**13. Commitments and Contingencies**

***Purchase Obligations, Firm Agreements and Leases***

As at December 31, 2022, future minimum payments under non-cancelable agreements with remaining terms in excess of one year were as follows:

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| | | | | | | | |
|:---|:---|:---|:---|:---|:---|:---|:---|
| | **Year ending December 31** | **Year ending December 31** | **Year ending December 31** | **Year ending December 31** | **Year ending December 31** | **Year ending December 31** | **Year ending December 31** |
| **(Thousands of U.S. Dollars)** | **Total** | **2023** | **2024** | **2025** | **2026** | **2027** | **Thereafter** |
| Facilities | 8704 | 1997 | 2002 | 1997 | 1997 | 711 |  |
| Operating leases <sup>(1)</sup> | 10684 | 2093 | 1605 | 1710 | 1723 | 1938 | 1615 |
| Finance leases <sup>(1)</sup> | 22036 | 5105 | 4644 | 2233 | 2233 | 7821 |  |
| Software and Telecommunication | 774 | 387 | 387 |  |  |  |  |
|  | $**42198** | $**9582** | $**8638** | $**5940** | $**5953** | $**10470** | $**1615** |

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<sup>(1)</sup> Including maintenance and operating costs.

Gran Tierra has operating leases for office spaces, vehicles, and tanks and finance leases for power generation and enhanced oil recovery facilities, storage tanks, and compressors.

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***Indemnities***

Corporate indemnities have been provided by the Company to directors and officers for various items including, but not limited to, all costs to settle suits or actions due to their association with the Company and its subsidiaries and/or affiliates, subject to certain restrictions. The Company has purchased directors' and officers' liability insurance to mitigate the cost of any potential future suits or actions. The maximum amount of any potential future payment cannot be reasonably estimated. The Company may provide indemnifications in the normal course of business that are often standard contractual terms to counterparties in certain transactions such as purchase and sale agreements. The terms of these indemnifications will vary based upon the contract, the nature of which prevents the Company from making a reasonable estimate of the maximum potential amounts that may be required to be paid.

***Letters of Credit***

At December 31, 2022, the Company had provided letters of credit and other credit support totaling $111.1 million (December 31, 2021 - $103.0 million) as security relating to work commitment guarantees contained in exploration contracts in Colombia and Ecuador and other capital or operating requirements.

***Contingencies***

Gran Tierra has several lawsuits and claims pending. The outcome of the lawsuits and disputes cannot be predicted with certainty; Gran Tierra believes the resolution of these matters would not have a material adverse effect on the Company's consolidated financial position, results of operations, or cash flows. Gran Tierra records costs as they are incurred or become probable and determinable.

 **14. Financial Instruments, Fair Value Measurement, Credit Risk and Foreign Exchange Risk**

***Financial Instruments***

Financial instruments are initially recorded at fair value, defined as the price that would be received to sell an asset or paid to market participants to settle liability at the measurement date. For financial instruments carried at fair value, GAAP establishes a fair value hierarchy that prioritizes the inputs to valuation techniques used to measure fair value. This hierarchy consists of three broad levels:

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;• Level 1 - Inputs representing quoted market prices in active markets for identical assets and liabilities

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;• Level 2 - Inputs other than quoted prices included within Level 1 that are observable for the assets and liabilities, either directly or indirectly

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;• Level 3 - Unobservable inputs for assets and liabilities

The Company's financial instruments recognized on the balance sheet consist of cash and cash equivalents, restricted cash and cash equivalents, accounts receivable, other long-term assets, derivatives, accounts payable and accrued liabilities, current portion of long-term debt, long-term debt, current and long-term equity compensation reward liability and other long-term liabilities. The Company uses appropriate valuation techniques based on the available information to measure the fair values of assets and liabilities.

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***Fair Value Measurement***

The following table presents the Company's fair value measurements of its financial instruments as of December 31, 2022 and 2021:

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| | | |
|:---|:---|:---|
| | **As at December 31,** | **As at December 31,** |
| | **2022** | **2021** |
| **(Thousands of U.S. Dollars)** |  |  |
| **Level 1** |  |  |
| **Assets** |  |  |
| PEF - current<sup>(2)</sup> | $**5981** | $— |
| PEF - long-term<sup>(1)</sup> | **9975** | 7578 |
|  | $**15956** | $7578 |
| **Liabilities** |  |  |
| DSUs liability - long-term<sup>(3)</sup> | $**6496** | $4346 |
| 6.25% Senior Notes | **243801** | 273672 |
| 7.75% Senior Notes | **241455** | 271500 |
|  | $**491752** | $549518 |
| **Level 2** |  |  |
| **Assets** |  |  |
| Derivative asset<sup>(2)</sup> | $**—** | $219 |
| Restricted cash and cash equivalents - long-term<sup>(1)</sup> | **5343** | 4903 |
|  | $**5343** | $5122 |
| **Liabilities** |  |  |
| Derivative liability | $**—** | $2976 |
| Revolving credit facility | **—** | 66987 |
| PSUs liability - current | **15082** | 2710 |
| PSUs liability - long-term<sup>(3)</sup> | **9941** | 9372 |
|  | $**25023** | $82045 |
| **Level 3** |  |  |
| **Liabilities** |  |  |
| Asset retirement obligation - current | $**141** | $— |
| Asset retirement obligation - long-term | **63358** | 54525 |
|  | $**63499** | $54525 |

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<sup>(1)</sup> The long-term portion of restricted cash and PEF are included in the other long-term assets on the Company's balance sheet

<sup>(2)</sup> Included in the other current assets on the Company's balance sheet

<sup>(3)</sup> Long-term DSUs and PSUs liabilities are included in the long-term equity compensation award liability on the Company's balance sheet

The fair values of cash and cash equivalents, current restricted cash and cash equivalents, accounts receivable and accounts payable and accrued liabilities approximate their carrying amounts due to the short-term maturity of these instruments.

The fair value of long-term restricted cash and cash equivalents approximate its carrying value because interest rates are variable and reflective of market rates.

*PEF*

To reduce the Company's exposure to changes in the trading price of the Company's common shares on outstanding PSUs, the Company entered into PEFs. At the end of the term, the counterparty will pay the Company an amount equivalent to the notional amount of the shares using the price of the Company's common shares at the valuation date. The Company has the discretion to increase or decrease the notional amount of the prepaid equity forwards or terminate the agreement early. As at

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December 31, 2022, the Company's PEF had a notional amount of 16.0 million shares and a fair value of $16.0 million. During the year ended December 31, 2022, the Company recorded a gain of $1.3 million on the PEF in G&A expenses (December 31, 2021 - $0.9 million gain and 2020 - nil). The fair value of PEF asset was estimated using Company's share price quoted in active markets at the end of each reporting period.

*DSUs liability*

The fair value of DSUs liability was estimated using Company's share price quoted in active markets at the end of each reporting period.

*PSUs liability*

The fair value of the PSUs liability was estimated using the inputs, such as Company's share price and PSU performance factors.

*Derivative asset and derivative liability*

The fair value of derivatives is estimated based on various factors, including quoted market prices in active markets and quotes from third parties. The Company also performs an internal valuation to ensure the reasonableness of third party quotes. In consideration of counterparty credit risk, the Company assessed the possibility of whether the counterparty to the derivative would default by failing to make any contractually required payments. Additionally, the Company considers that it is of substantial credit quality and has the financial resources and willingness to meet its potential repayment obligations associated with the derivative transactions. As at December 31, 2022, the Company did not have any outstanding derivative positions.

The following table presents gains or losses on derivatives and other instruments recognized in the accompanying consolidated statements of operations:

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| | | | |
|:---|:---|:---|:---|
| | **Year Ended December 31,** | **Year Ended December 31,** | **Year Ended December 31,** |
| **(Thousands of U.S. Dollars)** | **2022** | **2021** | **2020** |
| Commodity price derivative loss (gain) | $**26611** | $48723 | $(220) |
| Foreign currency derivative loss | **—** | 115 | 3155 |
| **Derivative instruments loss** | $**26611** | $48838 | $2935 |
| Unrealized investment loss | $**—** | $2032 | $46883 |
| Loss on sale of investment | **—** | 1355 |  |
| Financial instruments (gain) loss | **(7)** | (18) | 1164 |
| **Other financial instruments (gain) loss** | $**(7)** | $3369 | $48047 |

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These gains or losses are presented as financial instruments gains or losses in the consolidated statements of operations and cash flows.

*Credit facility and Senior Notes* 

Financial instruments not recorded at fair value at December 31, 2022, include the Senior Notes and the credit facility (Note 8).

During the year ended December 31, 2022, the Company terminated its prior revolving credit facility agreement and replaced the prior facility with a new credit facility. As of December 31, 2022, the credit facility remained undrawn.

At December 31, 2022, the carrying amounts of the 6.25% Senior Notes and 7.75% Senior Notes were $275.9 million and $293.2 million, respectively, which represents the aggregate principal amounts less unamortized debt issuance costs, and the fair values were $243.8 million and $241.5 million.

*Asset retirement obligation*

The Company's non-recurring fair value measurements include asset retirement obligations. The fair value of an asset retirement obligation is measured by reference to the expected future cash outflows required to satisfy the retirement obligation discounted at the Company's credit-adjusted risk-free interest rate. The significant level 3 inputs used to calculate such

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liabilities include estimates of costs to be incurred, the Company's credit-adjusted risk-free interest rate, inflation rates, and estimated dates of abandonment. Accretion expense is recognized over time as the discounted liabilities are accreted to their expected settlement value, while the asset retirement cost is amortized over the estimated productive life of the related assets.

***Commodity Price Risk***

The Company may at time utilize commodity price derivatives to manage the variability in cash flows associated with the forecasted sale of its oil production, reduce commodity price risk and provide a base level of cash flow in order to assure it can execute at least a portion of its capital spending. As at December 31, 2022, the Company had no outstanding commodity price derivative positions.

***Foreign Exchange Risk***

The Company is exposed to foreign exchange risk in relation to its Colombian operations predominantly in operating and transportation costs and G&A expenses. To mitigate exposure to fluctuations in foreign exchange, the Company may enter into foreign currency exchange derivatives. As at December 31, 2022, the Company had no outstanding foreign currency exchange derivative positions.

Unrealized foreign exchange gains and losses primarily result from fluctuation of the U.S. dollar to the Colombian peso and Canadian dollar due to Gran Tierra's current and deferred tax assets and taxes receivable, which are monetary assets and liabilities mainly denominated in the local currencies. As a result, foreign exchange gains and losses must be calculated on conversion to the U.S. dollar functional currency. A strengthening in one Colombian peso against the U.S. dollar results in foreign exchange gain of approximately six thousand of U.S. dollars on deferred tax asset balance and a foreign exchange loss of approximately seven thousand of U.S. dollars on taxes payable. This effect was calculated based on the Company's December 31, 2022, deferred tax assets and taxes payable.

For the years ended December 31, 2022, 2021 and 2020 respectively, 100% of the Company's oil sales were generated in Colombia. In Colombia, the Company receives 100% of its revenues in U.S. dollars and the majority of its capital expenditures are in U.S. dollars or are based on U.S. dollar prices.

***Credit Risk***

Credit risk arises from the potential that the Company may incur a loss if counterparty to a financial instrument fails to meet its obligation in accordance with agreed terms. The Company's financial instruments that are exposed to concentrations of credit risk consist primarily of cash and cash equivalents, restricted cash and accounts receivable. The carrying value of cash and cash equivalents, restricted cash and accounts receivable reflects management's assessment of credit risk.

At December 31, 2022, cash and cash equivalents and restricted cash included balances in bank accounts, term deposits and certificates of deposit, placed with financial institutions with investment grade credit ratings.

Most of the Company's accounts receivable relate to sales to customers in the oil and natural gas industry and are exposed to typical industry credit risks. The concentration of revenues in a single industry affects the Company's overall exposure to credit risk because customers may be similarly affected by changes in economic and other conditions. The Company manages this credit risk by entering into sales contracts with only credit worthy entities and reviewing its exposure to individual entities on a regular basis. For the year ended December 31, 2022, the Company had two customers (2021 and 2020 - three) which accounted for over 10% of sales.

To reduce the concentration of exposure to any individual counterparty, the Company utilizes a group of investment-grade rated financial institutions for its derivative transactions. The Company monitors counterparty creditworthiness on an ongoing basis; however, it cannot predict sudden changes in counterparties' creditworthiness. In addition, even if such changes are not sudden, the Company may be limited in its ability to mitigate an increase in counterparty credit risk. Should one of these counterparties not perform, the Company may not realize the benefit of some of its derivative instruments.

------

**15. Supplemental Cash Flow Information**

The following table provides a reconciliation of cash, cash equivalents and restricted cash and cash equivalents with the Company's consolidated balance sheet that sum to the total of such amounts shown in the consolidated statements of cash flows:

---

| | | | |
|:---|:---|:---|:---|
| | **Year Ended December 31,** | **Year Ended December 31,** | **Year Ended December 31,** |
| **(Thousands of U.S. Dollars)** | **2022** | **2021** | **2020** |
| Cash and cash equivalents | $126873 | $26109 | $13687 |
| Restricted cash and cash equivalents - current | 1142 | 392 | 427 |
| Restricted cash and cash equivalents - long-term <sup>(1)</sup> | 5343 | 4903 | 3409 |
|  | $**133358** | $31404 | $17523 |

---

<sup>(1)</sup> The long-term portion of restricted cash is included in other long-term assets on the Company's balance sheet.

Net changes in assets and liabilities from operating activities were as follows:

---

| | | | |
|:---|:---|:---|:---|
| | **Year Ended December 31,** | **Year Ended December 31,** | **Year Ended December 31,** |
| **(Thousands of U.S. Dollars)** | **2022** | **2021** | **2020** |
| Accounts receivable and other long-term assets | $**2352** | $(5686) | $27607 |
| Derivatives | **(12625)** | (5808) | 2302 |
| Inventory | **(4165)** | (2383) | (2628) |
| Other prepaids | **(1775)** | (199) | (279) |
| Accounts payable and accrued and other long-term liabilities | **(5789)** | 48206 | (47194) |
| Prepaid tax and taxes receivable and payable | **86319** | 25024 | 56254 |
| Net changes in assets and liabilities from operating activities | $**64317** | $59154 | $36062 |

---

The following table provides additional supplemental cash flow disclosures:

---

| | | | |
|:---|:---|:---|:---|
| | **Year Ended December 31,** | **Year Ended December 31,** | **Year Ended December 31,** |
| **(Thousands of U.S. Dollars)** | **2022** | **2021** | **2020** |
| Cash paid for income taxes | $**37052** | $36352 | $14611 |
| Cash paid for interest | $**43363** | $50109 | $50209 |
| Non-cash investing activities |  |  |  |
| Net liabilities related to property, plant and equipment, end of year | $**55118** | $30142 | $28711 |

---

**16 Subsequent Events**

Subsequent to year-end, the Company received $5.4 million from the vesting of 6.0 million short-term PEF units.

**Supplementary Data (Unaudited)**

**1) Oil and Gas Producing Activities**

In accordance with Financial Accounting Standards Board (FASB) Accounting Standards Codification Topic 932, "Extractive Activities—Oil and Gas", and regulations of the U.S. Securities and Exchange Commission (SEC), the Company is making certain supplemental disclosures about its oil and gas exploration and production operations.

**A. Estimated Proved NAR Reserves**

The following table sets forth Gran Tierra's estimated proved NAR reserves and total net proved developed and undeveloped reserves as of December 31, 2020, 2021, and 2022, and the changes in total net proved reserves during the three-year period ended December 31, 2022.

------

The net proved reserves represent management's best estimate of proved oil and natural gas reserves after royalties. Reserve estimates for each property are prepared internally each year and 100% of the reserves at December 31, 2022, have been evaluated by independent qualified reserves consultants, McDaniel & Associates Consultants Ltd.

The reserve estimation process requires us to use significant decisions and assumptions in the evaluation of available geological, geophysical, engineering and economic data for each property, and demonstrate reasonable certainty that they are recoverable from known reservoirs under economic and operating conditions that existed at year end. The determination of oil and natural gas reserves is complex and requires significant judgment. Assumptions used to estimate reserve information may significantly increase or decrease such reserves in future periods. The estimates of reserves are subject to continuing changes and, therefore, an accurate determination of reserves may not be possible for many years because of the time needed for development, drilling, testing, and studies of reservoirs.

---

| | | |
|:---|:---|:---|
| | **Liquids** <sup>(1)</sup><br>**(Mbbl)** | **Gas**<br>**(MMcf)** |
| **Proved NAR Reserves, December 31, 2019** | 67329 | 1894 |
| Improved recoveries | 961 |  |
| Extensions | 879 |  |
| Technical revisions | 2477 | (40) |
| Production | (6954) | (199) |
| **Proved NAR Reserves, December 31, 2020** | 64692 | 1655 |
| Improved recoveries | 2057 |  |
| Extensions<sup>(2)</sup> | 7475 |  |
| Technical revisions | 1009 | 133 |
| Production | (8668) | (119) |
| **Proved NAR Reserves, December 31, 2021** | 66565 | 1669 |
| Improved recoveries |  |  |
| Extensions and discoveries <sup>(2)</sup> | 6273 |  |
| Technical revisions | 1558 | (208) |
| Production | (9129) | (15) |
| **Proved NAR Reserves, December 31, 2022** <sup>(2)</sup> | **65267** | **1446** |
| Proved Developed Reserves NAR, December 31, 2020 | 38660 | 633 |
| Proved Developed Reserves NAR, December 31, 2021 | 41869 | 880 |
| **Proved Developed Reserves NAR, December 31, 2022** | **40360** | **858** |
| Proved Undeveloped Reserves NAR, December 31, 2020 | 26032 | 1022 |
| Proved Undeveloped Reserves NAR, December 31, 2021 | 24696 | 789 |
| **Proved Undeveloped Reserves NAR, December 31, 2022** | **24907** | **588** |

---

<sup>(1)</sup> At December 31, 2022, 2021, and 2020, liquids reserves are 100% oil.

<sup>(2)</sup> Includes 2.5 MMBBL of extensions and (0.2) MMBBL of technical revisions for Ecuador (2021 - includes 0.5 MMBBL of extensions for Ecuador).

Changes in proved reserves during the years ended December 31, 2022, 2021 and 2020 shown in the table above primarily resulted from the following significant factors:

***Improved Recoveries.*** There were no improved recoveries for the year ended December 31, 2022, (2021 - 2.1 MMBOE and 2020 - 1.0 MMBOE) attributed to improved recoveries of heavy oil in the Acordionero field.

***Extensions and Discoveries.*** Added 6.3 MMBOE of proved reserves during the year ended December 31, 2022, of which 3.8 MMBOE were extensions and discoveries in Colombia and 2.5 MMBOE in Ecuador. In Colombia, we had 2.4 and 0.5 MMBOE of extensions in the Acordionero and Costayaco fields, respectively, with the remainder 0.9 discoveries in Alea-1848

------

Block (2021 - 7.5 MMBOE due to reserve extensions in the Acordionero, Costayaco, Moqueta and Charapa fields and 2020 - 0.9 MMBOE, due to reserve extensions in the Acordionero, Costayaco fields).

***Technical and Economic Revisions.*** Added 1.6 MMBOE of proved reserves during the year ended December 31, 2022, primarily related to positive technical revisions based on increased drilling and continued waterflood performance in the Acordionero and Costayaco fields (2021 - 1.0 MMBOE related to positive technical revisions based on performance and waterflood response in the Acordionero and Costayaco fields and 2020 - 2.5 MMBOE, related to positive technical revisions in the Acordionero, Costayaco, Moqueta and Cohembi fields based on performance and waterflood response).

**B. Capitalized Costs**

Capitalized costs for Gran Tierra's oil and gas producing activities consisted of the following at the end of each of the years in the two-year period ended December 31, 2022:

---

| | | | | |
|:---|:---|:---|:---|:---|
| **(Thousands of U.S. Dollars)** | **Proved Properties** | **Unproved Properties** | **Accumulated<br>Depletion,<br>Depreciation<br>and<br>Impairment** | **Net Capitalized Costs** |
| Balance, December 31, 2022 | $**4617804** | $**74471** | $**(3617380)** | $**1074895** |
| Balance, December 31, 2021 | $4302473 | $131865 | $(3442893) | $991445 |

---

**C. Costs Incurred**

The following table presents costs incurred for Gran Tierra's oil and gas property acquisitions and exploration and development for the respective years:

---

| | |
|:---|:---|
| **(Thousands of U.S. Dollars)** | **Total** |
| **Year Ended December 31, 2020** | |
| Property acquisition costs |  |
| &nbsp;&nbsp;Proved | $— |
| &nbsp;&nbsp;Unproved | $— |
| Exploration costs | $12852 |
| Development costs | $92773 |
| **Year Ended December 31, 2021** |  |
| Property acquisition costs |  |
| &nbsp;&nbsp;Proved | $— |
| &nbsp;&nbsp;Unproved | $— |
| Exploration costs | $20410 |
| Development costs | $142461 |
| **Year Ended December 31, 2022** |  |
| Property acquisition costs |  |
| &nbsp;&nbsp;Proved | $**—** |
| &nbsp;&nbsp;Unproved | $**—** |
| Exploration costs | $**89898** |
| Development costs | $**160933** |

---

------

**D. Results of Operations for Oil and Gas Producing Activities**

---

| | |
|:---|:---|
| **(Thousands of U.S. Dollars)** | **Colombia** |
| **December 31, 2022** | |
| Oil sales | $**711388** |
| Production costs | **(172582)** |
| Exploration expenses | **—** |
| DD&A expenses | **(180039)** |
| Asset impairment | **—** |
| Income tax expense | **(105906)** |
| **Results of Operations** | $**252861** |
| **December 31, 2021** |  |
| Oil sales | $473722 |
| Production costs | (147339) |
| Exploration expenses |  |
| DD&A expenses | (139765) |
| Asset impairment |  |
| Income tax expense | 19346 |
| **Results of Operations** | $205964 |
| **December 31, 2020** |  |
| Oil sales | $237838 |
| Production costs | (122431) |
| Exploration expenses |  |
| DD&A expenses | (164013) |
| Asset impairment | (564495) |
| Income tax expense | 75394 |
| **Results of Operations** | $(537707) |

---

**E. Standardized Measure of Discounted Future Net Cash Flows and Changes**

The following disclosure is based on estimates of net proved reserves and the period during which they are expected to be produced. Future cash inflows are computed by applying the twelve month period unweighted arithmetic average of the price as of the first day of each month within that twelve month period, unless prices are defined by contractual arrangements, excluding escalations based on future conditions to Gran Tierra's after royalty share of estimated annual future production from proved oil and gas reserves.

---

| | | |
|:---|:---|:---|
| | **Colombia** | **Ecuador** |
| Twelve month period unweighted arithmetic average of the wellhead price as of the first day of each month within the twelve month period |  |  |
| 2022 | $86.16 | $91.53 |
| 2021 | $58.07 | $62.42 |
| 2020 | $35.33 | $— |
| Weighted average production costs |  |  |
| 2022 | $16.26 | $19.55 |
| 2021 | $15.55 | $17.40 |
| 2020 | $12.90 | $— |

---

Future development and production costs to be incurred in producing and further developing the proved reserves are based on year end cost indicators. Future income taxes are computed by applying year end statutory tax rates. These rates reflect allowable deductions and tax credits, and are applied to the estimated pre-tax future net cash flows. Discounted future net cash

------

flows are calculated using 10% mid-year discount factors. The calculations assume the continuation of existing economic, operating and contractual conditions. However, such arbitrary assumptions have not proved to be the case in the past. Other assumptions could give rise to substantially different results.

The Company believes this information does not in any way reflect the current economic value of its oil and gas producing properties or the present value of their estimated future cash flows as:

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;• no economic value is attributed to probable and possible reserves;

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;• use of a 10% discount rate is arbitrary; and

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;• prices change constantly from the twelve-month period unweighted arithmetic average of the price as of the first day of each month within that twelve-month period.

The standardized measure of discounted future net cash flows from Gran Tierra's estimated proved oil and gas reserves is as follows:

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| | | | |
|:---|:---|:---|:---|
| **(Thousands of U.S. Dollars)** | **Colombia** | **Ecuador** | **Total** |
| **December 31, 2022** | | | |
| Future cash inflows | $**5410256** | $**256220** | $**5666476** |
| Future production costs | **(1298198)** | **(104614)** | **(1402812)** |
| Future development costs | **(334560)** | **(63040)** | **(397600)** |
| Future asset retirement obligations | **(50520)** | **(2700)** | **(53220)** |
| Future income tax expense | **(1391436)** | **(33058)** | **(1424494)** |
| Future net cash flows | **2335542** | **52808** | **2388350** |
| 10% discount | **(659092)** | **(18632)** | **(677724)** |
| **Standardized Measure of Discounted Future Net Cash Flows** | $**1676450** | $**34176** | $**1710626** |
| **December 31, 2021** |  |  |  |
| Future cash inflows | $3880608 | $30573 | $3911181 |
| Future production costs | (1249901) | (13502) | (1263403) |
| Future development costs | (365983) | (12175) | (378158) |
| Future asset retirement obligations | (47580) | (600) | (48180) |
| Future income tax expense | (514231) | (1866) | (516097) |
| Future net cash flows | 1702913 | 2430 | 1705343 |
| 10% discount | (481504) | (2062) | (483566) |
| **Standardized Measure of Discounted Future Net Cash Flows** | $1221409 | $368 | $1221777 |
| **December 31, 2020** |  |  |  |
| Future cash inflows | $2329016 | $— | $2329016 |
| Future production costs | (929591) |  | (929591) |
| Future development costs | (252347) |  | (252347) |
| Future asset retirement obligations | (43455) |  | (43455) |
| Future income tax expense | (104311) |  | (104311) |
| Future net cash flows | 999312 |  | 999312 |
| 10% discount | (271825) |  | (271825) |
| **Standardized Measure of Discounted Future Net Cash Flows** | $727487 | $— | $727487 |

---

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**Changes in the Standardized Measure of Discounted Future Net Cash Flows**

The following table summarizes changes in the standardized measure of discounted future net cash flows for Gran Tierra's proved oil and gas reserves:

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| | | | |
|:---|:---|:---|:---|
| **(Thousands of U.S. Dollars)** | **2022** | **2021** | **2020** |
| Balance, beginning of year | $**1221777** | $727487 | $1188196 |
| Sales and transfers of oil and gas produced, net of production costs | **(433676)** | (244486) | (442826) |
| Net changes in prices and production costs related to future production | **1373950** | 1217785 | (813627) |
| Extensions, discoveries and improved recovery, less related costs | **384414** | 382423 | 47271 |
| Previously estimated development costs incurred during the year | **(136856)** | (98724) | (150644) |
| Revisions of previous quantity estimates | **75460** | (191738) | 700106 |
| Accretion of discount | **122178** | 72748 | 118820 |
| Net change in income taxes | **(739879)** | (414458) | 128265 |
| Changes in future development costs | **(156742)** | (229260) | (48074) |
| Net increase | **488849** | 494290 | (460709) |
| Balance, end of year | $**1710626** | $1221777 | $727487 |

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**Item 9. *Changes in and Disagreements with Accountants on Accounting and Financial Disclosure***

None.

**Item 9A. *Controls and Procedures***

**Disclosure Controls and Procedures**

We have established disclosure controls and procedures (as defined in Rules 13a-15(e) and 15d-15(e) under the Securities Exchange Act of 1934, or Exchange Act). Our management, with the participation of our Chief Executive Officer and Chief Financial Officer, evaluated the effectiveness of the design and operation of our disclosure controls and procedures as of the end of the period covered by this report, as required by Rule 13a-15(b) of the Exchange Act. Based on their evaluation, our Chief Executive Officer and Chief Financial Officer have concluded that Gran Tierra's disclosure controls and procedures were effective as of December 31, 2022, to provide reasonable assurance that the information required to be disclosed by Gran Tierra in the reports that it files or submits under the Exchange Act is recorded, processed, summarized and reported within the time periods specified in the SEC rules and forms and that such information is accumulated and communicated to management, including our Chief Executive Officer and Chief Financial Officer, as appropriate, to allow timely decisions regarding required disclosure.

**Management's Annual Report on Internal Control Over Financial Reporting**

Our management is responsible for establishing and maintaining adequate internal control over financial reporting for Gran Tierra, as such term is defined in Rules 13a-15(f) and 15d-15(f) under the Exchange Act. Our management, with the participation of our Chief Executive Officer and Chief Financial Officer, conducted an evaluation of the effectiveness of our internal control over financial reporting as of December 31, 2022, based on the framework in Internal Control — Integrated Framework issued by the Committee of Sponsoring Organizations of the Treadway Commission in 2013 (the "2013 COSO Framework"). Based on this evaluation under the 2013 COSO Framework, management concluded that our internal control over financial reporting was effective as of December 31, 2022. The effectiveness of our internal control over financial reporting as of December 31, 2022, has been audited by KPMG LLP, an independent registered public accounting firm, which audited our financial statements included in this Annual Report on Form 10-K as stated in their report which appears herein.

**Changes in Internal Controls over Financial Reporting**

There were no changes in our internal controls over financial reporting during the year ended December 31, 2022, that have materially affected, or are reasonably likely to materially affect our internal controls over financial reporting.

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**Report of Independent Registered Public Accounting Firm**

To the Shareholders and Board of Directors of Gran Tierra Energy Inc.:

*Opinion on Internal Control Over Financial Reporting* 

We have audited Gran Tierra Energy Inc.'s and subsidiaries' (the Company) internal control over financial reporting as of December 31, 2022, based on criteria established in *Internal Control – Integrated Framework (2013)* issued by the Committee of Sponsoring Organizations of the Treadway Commission. In our opinion, the Company maintained, in all material respects, effective internal control over financial reporting as of December 31, 2022, based on criteria established in *Internal Control – Integrated Framework (2013)* issued by the Committee of Sponsoring Organizations of the Treadway Commission.

We also have audited, in accordance with the standards of the Public Company Accounting Oversight Board (United States) (PCAOB), the consolidated balance sheets of the Company as of December 31, 2022 and 2021, the related consolidated statements of operations, shareholders' equity, and cash flows for each of the years in the three-year period ended December 31, 2022, and the related notes (collectively, the consolidated financial statements), and our report dated February 21, 2023 expressed an unqualified opinion on those consolidated financial statements.

*Basis for Opinion*

The Company's management is responsible for maintaining effective internal control over financial reporting and for its assessment of the effectiveness of internal control over financial reporting, included in the accompanying Management's Annual Report on Internal Control over Financial Reporting. Our responsibility is to express an opinion on the Company's internal control over financial reporting based on our audit. We are a public accounting firm registered with the PCAOB and are required to be independent with respect to the Company in accordance with the U.S. federal securities laws and the applicable rules and regulations of the Securities and Exchange Commission and the PCAOB.

We conducted our audit in accordance with the standards of the PCAOB. Those standards require that we plan and perform the audit to obtain reasonable assurance about whether effective internal control over financial reporting was maintained in all material respects. Our audit of internal control over financial reporting included obtaining an understanding of internal control over financial reporting, assessing the risk that a material weakness exists, and testing and evaluating the design and operating effectiveness of internal control based on the assessed risk. Our audit also included performing such other procedures as we considered necessary in the circumstances. We believe that our audit provides a reasonable basis for our opinion.

*Definition and Limitations of Internal Control Over Financial Reporting* 

A company's internal control over financial reporting is a process designed to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles. A company's internal control over financial reporting includes those policies and procedures that (1) pertain to the maintenance of records that, in reasonable detail, accurately and fairly reflect the transactions and dispositions of the assets of the company; (2) provide reasonable assurance that transactions are recorded as necessary to permit preparation of financial statements in accordance with generally accepted accounting principles, and that receipts and expenditures of the company are being made only in accordance with authorizations of management and directors of the company; and (3) provide reasonable assurance regarding prevention or timely detection of unauthorized acquisition, use, or disposition of the company's assets that could have a material effect on the financial statements.

Because of its inherent limitations, internal control over financial reporting may not prevent or detect misstatements. Also, projections of any evaluation of effectiveness to future periods are subject to the risk that controls may become inadequate because of changes in conditions, or that the degree of compliance with the policies or procedures may deteriorate.

/s/ KPMG LLP

Chartered Professional Accountants

Calgary, Canada

February 21, 2023

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**Item 9B. *Other Information***

The Board of Directors of Gran Tierra Energy Inc. has established May 3, 2023 as the date of the Company's 2023 Annual Meeting of Stockholders (the "2023 Annual Meeting") and March 7, 2023 as the record date for determining stockholders entitled to notice of, and to vote at, the 2023 Annual Meeting. The time and location of the 2023 Annual Meeting will be as set forth in the Company's proxy materials for the 2023 Annual Meeting.

On February 20, 2023, Gran Tierra Energy Inc. ("Gran Tierra"), Gran Tierra Energy Colombia GmbH (formerly Gran Tierra Energy Colombia, LLC) and Gran Tierra Operations Colombia GmbH (formerly Gran Tierra Colombia Inc.) entered into a Deed of Amendment and Restatement with Trafigura PTE Ltd., as lender ("Trafigura")**<u>,</u>** amending and restating a facility agreement (the "Credit Facility"). The Credit Facility was originally entered into on August 18, 2022.

The amendment made various changes to the Credit Facility**<u>,</u>** including: (i) the availability period for the facility was extended to August 20, 2023 and the due date for the facility <u>was</u> extended to August 20, 2025; (ii) the borrowers under the Credit Facility are permitted to incur certain financial indebtedness where such indebtedness is between a borrower and a member of the Gran Tierra group, provided that such intra-group indebtedness is subordinated pursuant to the terms of a subordination agreement.

The Credit Facility, <u>as amended and restated,</u> remains secured by Gran Tierra's Colombian assets and economic rights and its remaining commercial terms remain unchanged. As of February 21, 2023, no amounts have been drawn under the Credit Facility.

This description of the amended and restated Credit Facility is qualified in its entirety by reference to the complete terms and conditions of the amended and restated Credit Facility, which is filed as Exhibit 10.22.

**Item 9C. *Disclosure Regarding Foreign Jurisdictions that Prevent Inspections***

Not applicable

**PART III**

**Item 10. *Directors, Executive Officers and Corporate Governance***

The information required regarding our directors is incorporated herein by reference from the information contained in the section entitled "Proposal 1 - Election of Directors" in our definitive Proxy Statement for the 2023 Annual Meeting of Stockholders (our "Proxy Statement"), a copy of which will be filed with the SEC within 120 days after December 31, 2022. For information with respect to our executive officers, see "Information About Our Executive Officers" at the end of Part I of this report, following Item 4 "Mine Safety Disclosures".

The information required regarding Section 16(a) beneficial ownership reporting compliance, if applicable, is incorporated by reference from the information contained in the section entitled "Delinquent Section 16(a) Reports" in our Proxy Statement.

The information required with respect to procedures by which security holders may recommend nominees to our Board of Directors, the composition of our Audit Committee, and whether we have an "audit committee financial expert", is incorporated by reference from the information contained in the section entitled "Proposal 1 - Election of Directors" in our Proxy Statement.

**Adoption of Code of Ethics** 

Gran Tierra has adopted a Code of Business Conduct and Ethics (the "Code") applicable to all of its Board members, employees and executive officers, including its President and Chief Executive Officer, Director (Principal Executive Officer), and Chief Financial Officer and Executive Vice President, Finance (Principal Financial and Accounting Officer). Gran Tierra has made the Code available on its website at www.grantierra.com.

Gran Tierra intends to satisfy the public disclosure requirements regarding (1) any amendments to the Code, or (2) any waivers under the Code given to Gran Tierra's (Principal Executive Officer) and (Principal Financial and Accounting Officer) by posting such information on its website at http://www.grantierra.com/governance.html within four business days of such amendment or waiver. Information on our website is not incorporated into this Annual Report or otherwise made part of this Annual Report.

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**Item 11. *Executive Compensation***

The information required regarding the compensation of our directors and executive officers is incorporated herein by reference from the information contained in the section entitled "Executive Compensation and Related Information" in our Proxy Statement, including under the subheadings "Director Compensation," "Compensation Committee Report," and "Compensation Committee Interlocks and Insider Participation".

**Item 12. *Security Ownership of Certain Beneficial Owners and Management and Related Stockholder Matters***

**Security Ownership of Certain Beneficial Owners and Management**

The information required regarding security ownership of our 10% or greater stockholders and of our directors and management is incorporated herein by reference from the information contained in the section entitled "Security Ownership of Certain Beneficial Owners and Management" in our Proxy Statement.

The following table provides certain information with respect to securities authorized for issuance under Gran Tierra's equity compensation plans in effect as of the end of December 31, 2022:

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| | | | |
|:---|:---|:---|:---|
| **Plan category** | **(a)** <br>**Number of securities to be issued upon exercise of outstanding options** <sup>(1)</sup> | **(b)** <br>**Weighted average exercise price of outstanding options** | **(c)**<br>**Number of securities remaining available for future issuance under equity compensation plans, excluding securities reflected in column (a)** <sup>(2)</sup> |
| Equity compensation plans approved by security holders | 17302860 | 1.15 | 20766922 |
| Equity compensation plans not approved by security holders |  |  |  |
|  | 17302860 | 1.15 | 20766.922 |

---

<sup>(1)</sup> Includes shares reserved to be issued pursuant to stock options granted pursuant to the 2007 Equity Incentive Plan ("the Plan"), which is an amendment and restatement of our 2005 Equity Incentive Plan. This does not include any shares reserved to be issued relating to performance stock units ("PSUs"), and deferred share units ("DSUs"), which may be settled in cash or in shares of our common stock at our election, and for which management's intent to cash settle is reflected in the financial statement classification of these awards as financial liabilities.

<sup>(2)</sup> In accordance with Item 201(d) of Regulation S-K, the figure in this column represents the total number of shares of our common stock remaining available for issuance under the Plan as of December 31, 2022, minus the awards reported in column (a), above. Note, pursuant to the terms of the Plan, the pool of shares available for grant thereunder is not actually reduced until an award is settled in shares of our common stock (as opposed to reducing the pool at the time of grant). At December 31, 2022, 38,090,092 shares were issued and outstanding relating to PSUs and DSUs and would represent a reduction to the securities remaining available for future issuance under the Plan if such awards were to be equity settled. Consistent with accounting treatment that reflects management's intent to cash settle, these amounts are not included in the above table as a reduction in the securities remaining available for future issuance. Pursuant to the provisions of the Plan, the number of securities remaining available for issuance is reduced by the aggregate balance of (i) stock options exercised and outstanding at a fungible factor of 1.0 shares and (ii) unit based awards at a fungible factor of 1.0 shares for each share of our common stock issued pursuant to any equity settled awards granted under the Plan. Accordingly, the number of shares available for future awards under the Plan may be different than the amount shown in this column.

The only equity compensation plan approved by our stockholders is our 2007 Equity Incentive Plan, which is an amendment and restatement of our 2005 Equity Incentive Plan.

**Item 13. Certain Relationships and Related Transactions, and Director Independence**

The information required regarding related transactions is incorporated herein by reference from the information contained in the section entitled "Certain Relationships and Related Transactions" and, with respect to director independence, the section entitled "Proposal 1 - Election of Directors", in our Proxy Statement.

------

**Item 14. *Principal Accounting Fees and Services***

The information required is incorporated herein by reference from the information contained in the sections entitled "Principal Accountant Fees and Services" and "Pre-Approval Policies and Procedures" in the proposal entitled "Ratification of Selection of Independent Auditors" in our Proxy Statement.

**PART IV**

**Item 15. *Exhibits, Financial Statement Schedules***

(a) The following documents are filed as part of this Annual Report on Form 10-K:

(1) Financial Statements

---

| | |
|:---|:---|
| | **Page** |
| Report of Independent Registered Public Accounting Firm | <u>[56](#ia449746dc91e4ef89fd8058c8f3d2183_169)</u> |
| Consolidated Statements of Operations | <u>[58](#ia449746dc91e4ef89fd8058c8f3d2183_172)</u> |
| Consolidated Balance Sheets | <u>[59](#ia449746dc91e4ef89fd8058c8f3d2183_175)</u> |
| Consolidated Statements of Cash Flow | <u>[60](#ia449746dc91e4ef89fd8058c8f3d2183_178)</u> |
| Consolidated Statements of Shareholders' Equity | <u>[61](#ia449746dc91e4ef89fd8058c8f3d2183_181)</u> |
| Notes to the Consolidated Financial Statements | <u>[62](#ia449746dc91e4ef89fd8058c8f3d2183_184)</u> |
| Supplementary Data (Unaudited) | <u>[81](#ia449746dc91e4ef89fd8058c8f3d2183_238)</u> |

---

(2) Financial Statement Schedules

None.

(3) Exhibits

---

| | | |
|:---|:---|:---|
| **Exhibit No.** | **Description** | **Reference** |
| 3.1 | <u>[Certificate of Incorporation.](http://www.sec.gov/Archives/edgar/data/1273441/000114420416131497/v451556_ex3-3.htm)</u> | Incorporated by reference to Exhibit 3.3 to the Current Report on Form 8-K, filed with the SEC on November 4, 2016 (SEC File No. 001-34018). |
| 3.2 | <u>[Bylaws of Gran Tierra Energy Inc.](http://www.sec.gov/Archives/edgar/data/1273441/000114420416131497/v451556_ex3-4.htm)</u> | Incorporated by reference to Exhibit 3.4 to the Current Report on Form 8-K, filed with the SEC on November 4, 2016 (SEC File No. 001-34018). |
| 3.3 | <u>[Amendment No.1 to Bylaws of Gran Tierra Energy Inc.](http://www.sec.gov/Archives/edgar/data/0001273441/000110465921099737/tm2124065d1_ex3-1.htm)</u> | Incorporated by reference to Exhibit 3.1 to the Current Report on Form 8-K, filed with the SEC on August 4, 2021 (SEC File No. 001-34018). |
| 4.1 | <u>[Subscription Receipt Agreement, dated July 8, 2016, by and between Gran Tierra Energy Inc. and Computershare Trust Company of Canada](http://www.sec.gov/Archives/edgar/data/1273441/000114420416112987/v444246_ex4-1.htm)</u>. | Incorporated by reference to Exhibit 4.1 to the Current Report on Form 8-K, filed with the SEC on July 14, 2016 (SEC File No. 001-34018). |
| 4.2 | <u>[Indenture related to the 6.25% Senior Notes due 2025, dated as of February 15, 2018, between Gran Tierra Energy International Holdings Ltd., the Guarantors named therein and U.S. Bank National Association](http://www.sec.gov/Archives/edgar/data/1273441/000114420418009544/tv486367_ex4-1.htm)</u>. | Incorporated by reference to Exhibit 4.1 to the Current Report on Form 8-K filed with the SEC on February 16, 2018 (SEC File No. 001-34018). |
| 4.3 | <u>[First Supplemental Indenture related to 6.25% Senior Notes due 2025, dated as of July 23, 2019, among Gran Tierra Energy Inc., the guarantors named therein, and U.S. Bank National Association.](http://www.sec.gov/Archives/edgar/data/1273441/000127344119000022/gte-20190630xex103.htm)</u> | Incorporated by reference to Exhibit 10.3 to the Quarterly Report on Form 10-Q, filed with the SEC on August 8, 2019 (SEC File No. 001-34018). |
| 4.4 | <u>[Form of 6.25% Senior Notes due 2025](http://www.sec.gov/Archives/edgar/data/1273441/000114420418009544/tv486367_ex4-1.htm#a_exa)</u>.  | Incorporated by reference to Exhibit 4.2 to the Current Report on Form 8-K filed with the SEC on February 16, 2018 (SEC File No. 001-34018). |

---

------

---

| | | |
|:---|:---|:---|
| 4.5 | <u>[Indenture related to the 7.750% Senior Notes due 2027, dated as of May 23, 2019, among Gran Tierra Energy Inc., the guarantors named therein, and U.S. Bank National Association.](http://www.sec.gov/Archives/edgar/data/1273441/000114420419028001/tv522311_ex4-1.htm)</u> | Incorporated by reference to Exhibit 4.1 to the Current Report on Form 8-K filed with the SEC on May 23, 2019 (SEC File No. 001-34018). |
| 4.6 | <u>[First Supplemental Indenture related to 7.750% Senior Notes due 2027, dated as of July 23, 2019, among Gran Tierra Energy Inc., the guarantors named therein, and U.S. Bank.](http://www.sec.gov/Archives/edgar/data/1273441/000127344119000022/gte-20190630xex104.htm)</u> | Incorporated by reference to Exhibit 10.4 to the Quarterly Report on Form 10-Q, filed with the SEC on August 8, 2019 (SEC File No. 001-34018). |
| 4.10 | <u>[Form of 7.750% Senior Notes due 2027 (included as Exhibit A to Exhibit 4.1).](http://www.sec.gov/Archives/edgar/data/1273441/000114420419028001/tv522311_ex4-1.htm)</u> | Incorporated by reference to Exhibit 4.2 to the Current Report on Form 8-K filed with the SEC on May 23, 2019 (SEC File No. 001-34018). |
| 4.11 | <u>[Description of securities.](http://www.sec.gov/Archives/edgar/data/1273441/000127344120000007/gte-20191231xex414.htm)</u> | Incorporated by reference to Exhibit 4.11 to the Annual Report on Form 10-K, filed with the SEC on February 27, 2020 (SEC File No. 001-34018). |
| 10.1 | <u>[Amended and Restated 2007 Equity Incentive](http://www.sec.gov/Archives/edgar/data/1273441/000119312522084185/d266451ddef14a.htm#toc266451_28)[Plan\*](http://www.sec.gov/Archives/edgar/data/1273441/000119312522084185/d266451ddef14a.htm#toc266451_28)</u> | Incorporated by reference to Appendix of the Definitive Proxy Statement filed with the SEC on March 25, 2022 (SEC File No. 001-34018). |
| 10.2 | <u>[Form of Restricted Stock Unit Award Agreement Under the 2007 Equity Incentive Plan.\*](http://www.sec.gov/Archives/edgar/data/1273441/000127344113000034/gte-20130630xex101.htm)</u> | Incorporated by reference to Exhibit 10.1 to the Quarterly Report on Form 10-Q filed with the SEC on August 7, 2013 (SEC File No. 001-34018). |
| 10.3 | <u>[Form of Option Agreement Under the 2007 Equity Incentive Plan.\*](http://www.sec.gov/Archives/edgar/data/1273441/000127344113000034/gte-20130630xex102.htm)</u> | Incorporated by reference to Exhibit 10.2 to the Quarterly Report on Form 10-Q filed with the SEC on August 7, 2013 (SEC File No. 001-34018). |
| 10.4 | <u>[Form of Indemnity Agreement.\*](http://www.sec.gov/Archives/edgar/data/1273441/000114420416131497/v451556_ex3-5.htm)</u> | Incorporated by reference to Exhibit 3.5 to the Current Report on Form 8-K filed with the SEC on November 4, 2016 (SEC File No. 001-34018). |
| 10.5 | <u>[Form of Deferred Stock Unit Award Agreement Under the 2007 Equity Incentive Plan.\*](http://www.sec.gov/Archives/edgar/data/1273441/000127344116000052/gte-20151231xex1029.htm)</u> | Incorporated by reference to Exhibit 10.29 to the Annual Report on Form 10-K, filed with the SEC on February 29, 2016 (SEC File No. 001-34018). |
| 10.6 | <u>[Form of Deferred Stock Unit Grant Notice.\*](http://www.sec.gov/Archives/edgar/data/1273441/000127344116000052/gte-20151231xex1030.htm)</u> | Incorporated by reference to Exhibit 10.30 to the Annual Report on Form 10-K, filed with the SEC on February 29, 2016 (SEC File No. 001-34018). |
| 10.7 | <u>[Executive Employment Agreement effective May 7, 2015, between Gran Tierra Energy Canada ULC, Gran Tierra Energy Inc. and Gary Guidry.\*](http://www.sec.gov/Archives/edgar/data/1273441/000127344115000040/gte-20150930xex102.htm)</u> | Incorporated by reference to Exhibit 10.2 to the Quarterly Report on Form 10-Q, filed with the SEC on November 4, 2015 (SEC File No. 001-34018). |
| 10.8 | <u>[Executive Employment Agreement effective May 11 2015, between Gran Tierra Energy Canada ULC, Gran Tierra Energy Inc. and Lawrence West.\*](http://www.sec.gov/Archives/edgar/data/1273441/000127344115000040/gte-20150930xex105.htm)</u> | Incorporated by reference to Exhibit 10.5 to the Quarterly Report on Form 10-Q, filed with the SEC on November 4, 2015 (SEC File No. 001-34018). |
| 10.10 | <u>[Executive Employment Agreement effective May 11, 2015, between Gran Tierra Energy Canada ULC, Gran Tierra Energy Inc. and James Evans.\*](http://www.sec.gov/Archives/edgar/data/1273441/000127344115000040/gte-20150930xex106.htm)</u> | Incorporated by reference to Exhibit 10.6 to the Quarterly Report on Form 10-Q, filed with the SEC on November 4, 2015 (SEC File No. 001-34018). |
| 10.11 | <u>[Form of Performance Stock Unit Award Agreement Under the 2007 Equity Incentive Plan.\*](http://www.sec.gov/Archives/edgar/data/1273441/000127344116000070/gte-20160331xex103.htm)</u> | Incorporated by reference to Exhibit 10.3 to the Quarterly Report on Form 10-Q, filed with the SEC on May 4, 2016 (SEC File No. 001-34018). |
| 10.12 | <u>[Form of Performance Stock Unit Grant Notice.\*](http://www.sec.gov/Archives/edgar/data/1273441/000127344116000070/gte-20160331xex104.htm)</u> | Incorporated by reference to Exhibit 10.4 to the Quarterly Report on Form 10-Q, filed with the SEC on May 4, 2016 (SEC File No. 001-34018). |
| 10.13 | <u>[Executive Employment Agreement effective May 11 2015, between Gran Tierra Energy Canada ULC, Gran Tierra Energy Inc. and Ryan Ellson.\*](http://www.sec.gov/Archives/edgar/data/1273441/000127344116000070/gte-20160331xex105.htm)</u> | Incorporated by reference to Exhibit 10.5 to the Quarterly Report on Form 10-Q, filed with the SEC on May 4, 2016 (SEC File No. 001-34018). |

---

------

---

| | | |
|:---|:---|:---|
| 10.14 | <u>[Credit Agreement, dated as of August 18, 2022, by and among Gran Tierra Energy Inc., Gran Tierra Energy Colombia](http://www.sec.gov/Archives/edgar/data/1273441/000110465922093702/tm2224101d1_ex10-1.htm)[GMBH](http://www.sec.gov/Archives/edgar/data/1273441/000110465922093702/tm2224101d1_ex10-1.htm)[,](http://www.sec.gov/Archives/edgar/data/1273441/000110465922093702/tm2224101d1_ex10-1.htm)[Gran Tierra](http://www.sec.gov/Archives/edgar/data/1273441/000110465922093702/tm2224101d1_ex10-1.htm)[Operations](http://www.sec.gov/Archives/edgar/data/1273441/000110465922093702/tm2224101d1_ex10-1.htm)[Colombia](http://www.sec.gov/Archives/edgar/data/1273441/000110465922093702/tm2224101d1_ex10-1.htm)[GMBH](http://www.sec.gov/Archives/edgar/data/1273441/000110465922093702/tm2224101d1_ex10-1.htm)[and Trafigura PTE Ltd. as a lender](http://www.sec.gov/Archives/edgar/data/1273441/000110465922093702/tm2224101d1_ex10-1.htm)</u> | Incorporated by reference to Exhibit 10.1 to the Current Report on Form 8-K, filed with SEC on August 23, 2022 (SEC File No. 001-34018). |
| 10.15 | <u>[Deed of Amendment and Restatement to Credit Agreement dated February 20, 2023 by and among Gran Tierra Energy Inc.,](gte-20221231xex1015.htm)[Gran Tierra Energy Colombia LLC, Gran Tierra Colombia Inc. and Trafigura PTE Ltd. as a lender](gte-20221231xex1015.htm)[.](gte-20221231xex1015.htm)</u> | Filed herewith. |
| 10.16 | <u>[Colombian Participation Agreement, dated as of June 22, 2006, by and among Argosy Energy International, Gran Tierra Energy Inc., and Crosby Capital, LLC.](http://www.sec.gov/Archives/edgar/data/1273441/000114420408045272/v122655_ex10-55.htm)</u> | Incorporated by reference to Exhibit 10.55 to the Quarterly Report on Form 10-Q, filed with the SEC on August 11, 2008 (SEC File No. 001-34018). |
| 10.17 | <u>[Amendment No. 1 to Colombian Participation Agreement, dated as of November 1, 2006, by and among Argosy Energy International, Gran Tierra Energy Inc., and Crosby Capital, LLC.](http://www.sec.gov/Archives/edgar/data/1273441/000114420408045272/v122655_ex10-56.htm)</u> | Incorporated by reference to Exhibit 10.56 to the Quarterly Report on Form 10-Q, filed with the SEC on August 11, 2008 (SEC File No. 001-34018). |
| 10.18 | <u>[Amendment No. 2 to Colombian Participation Agreement, dated as of July 3, 2008, between Gran Tierra Energy Inc. and Crosby Capital, LLC.](http://www.sec.gov/Archives/edgar/data/1273441/000114420408065459/v132937_ex10-3.htm)</u> | Incorporated by reference to Exhibit 10.3 to the Quarterly Report on Form 10-Q/A, filed with the SEC on November 19, 2008 (SEC File No. 001-34018). |
| 10.19 | <u>[Amendment No. 3 to Participation Agreement, dated as of December 31, 2008, by and among Gran Tierra Energy Colombia, Ltd., Gran Tierra Energy Inc. and Crosby Capital, LLC.](http://www.sec.gov/Archives/edgar/data/1273441/000114420409000709/v136372_ex10-1.htm)</u> | Incorporated by reference to Exhibit 10.1 to the Current Report on Form 8-K, filed with the SEC on January 7, 2009 (SEC File No. 001-34018). |
| 10.20 | <u>[Amendment No. 4 dated June 13, 2011, to the Colombian Participation Agreement dated June 22, 2006, between Gran Tierra Colombia Ltd and Crosby Capital, LLC.](http://www.sec.gov/Archives/edgar/data/1273441/000114036112023165/ex10_1.htm)</u> | Incorporated by reference to Exhibit 10.1 to the Quarterly Report on Form 10-Q filed with the SEC on May 7, 2012 (SEC File No. 001-34018). |
| 10.21 | <u>[Amendment No. 5 dated February 10, 2011, to the Colombian Participation Agreement dated June 22, 2006, between Gran Tierra Colombia Ltd and Crosby Capital, LLC.](http://www.sec.gov/Archives/edgar/data/1273441/000114036112023165/ex10_2.htm)</u> | Incorporated by reference to Exhibit 10.2 to the Quarterly Report on Form 10-Q filed with the SEC on May 7, 2012 (SEC File No. 001-34018). |
| 10.22 | <u>[Amendment No. 6 dated March 1, 2012, to the Colombian Participation Agreement dated June 22, 2006, between Gran Tierra Colombia Ltd and Crosby Capital, LLC.](http://www.sec.gov/Archives/edgar/data/1273441/000114036112023165/ex10_9.htm)</u> | Incorporated by reference to Exhibit 10.9 to the Quarterly Report on Form 10-Q filed with the SEC on May 7, 2012 (SEC File No. 001-34018). |
| 21.1 | <u>[List of subsidiaries.](gte-20221231xex211.htm)</u> | Filed herewith. |
| 23.1 | <u>[Consent of KPMG LLP.](gte-20221231xex231.htm)</u> | Filed herewith. |
| 23.2 | <u>[Consent of McDaniel & Associates Consultants Ltd.](gte-20221231xex232.htm)</u> | Filed herewith. |
| 24.1 | Power of Attorney. | See signature page. |
| 31.1 | <u>[Certification of Principal Executive Officer Pursuant to Rule 13a-14(a)/15d-14(a), as Adopted Pursuant to Section 302 of the Sarbanes-Oxley Act of 2002.](gte-20221231xex311.htm)</u> | Filed herewith. |
| 31.2 | <u>[Certification of Principal Financial Officer Pursuant to Rule 13a-14(a)/15d-14(a), as Adopted Pursuant to Section 302 of the Sarbanes-Oxley Act of 2002.](gte-20221231xex312.htm)</u> | Filed herewith. |

---

------

---

| | | |
|:---|:---|:---|
| 32.1 | <u>[Certification of Principal Executive Officer and Principal Financial Officer Pursuant to 18 U.S.C. Section 1350, as Adopted Pursuant to Section 906 of the Sarbanes-Oxley Act of 2002.](gte-20221231xex321.htm)</u> | Furnished herewith. |
| 99.1 | <u>[Gran Tierra Energy Inc. Reserves Assessment and Evaluation of Oil and Gas Properties Corporate Summary, effective December 31, 202](gte-20221231xex991.htm)[2](gte-20221231xex991.htm)[.](gte-20221231xex991.htm)</u> | Filed herewith. |

---

101. INS Inline XBRL Instance Document - the instance document does not appear in the Interactive Data File because its XBRL tags are embedded within the Inline XBRL document

101. SCH Inline XBRL Taxonomy Extension Schema Document

101. CAL Inline XBRL Taxonomy Extension Calculation Linkbase Document

101. DEF Inline XBRL Taxonomy Extension Definition Linkbase Document

101. LAB Inline XBRL Taxonomy Extension Label Linkbase Document

101. PRE Inline XBRL Taxonomy Extension Presentation Linkbase Document

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

\* Management contract or compensatory plan or arrangement.

 **Item 16. *Form 10-K Summary***

None.

------

**SIGNATURES**

Pursuant to the requirements of Section 13 or 15(d) of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned, thereunto duly authorized.

GRAN TIERRA ENERGY INC.

---

| | |
|:---|:---|
| Date: February 21, 2023 | /s/ Gary S. Guidry |
|  | By: Gary S. Guidry |
|  | President and Chief Executive Officer, Director |
|  | (Principal Executive Officer) |
| Date: February 21, 2023 | /s/ Ryan Ellson |
|  | By: Ryan Ellson |
|  | Chief Financial Officer and Executive Vice President, Finance |
|  | (Principal Financial and Accounting Officer) |

---

------

**POWER OF ATTORNEY** 

KNOW ALL PERSONS BY THESE PRESENTS, that each person whose signature appears below constitutes and appoints Gary S. Guidry and Ryan Ellson, and each of them, as his true and lawful attorneys-in-fact and agents, with full power of substitution and re-substitution, for him and in his name, place and stead, in any and all capacities, to sign any and all amendments (including post-effective amendments) to this Annual Report on Form 10-K, and to file the same, with all exhibits thereto, and other documents in connection therewith, with the Securities and Exchange Commission, granting unto said attorneys-in-fact and agents, and each of them, full power and authority to do and perform each and every act and thing requisite and necessary to be done in connection therewith, as fully to all intents and purposes as he might or could do in person, hereby ratifying and confirming all that said attorneys-in-fact and agents, or any of them, or their or his substitute or substitutes, may lawfully do or cause to be done by virtue hereof.

Pursuant to the requirements of the Securities Exchange Act of 1934, this report has been signed below by the following persons on behalf of the registrant and in the capacities and on the dates indicated:

---

| | | |
|:---|:---|:---|
| **Name** | **Title** | **Date** |
| /s/ Gary S. Guidry | President and Chief Executive Officer, Director | February 21, 2023 |
| Gary S. Guidry | (Principal Executive Officer) |  |
| /s/ Ryan Ellson | Chief Financial Officer and Executive Vice President, Finance | February 21, 2023 |
| Ryan Ellson | (Principal Financial and Accounting Officer) |  |
| /s/ Peter Dey | Director | February 21, 2023 |
| Peter Dey |  |  |
| /s/ Evan Hazell | Director | February 21, 2023 |
| Evan Hazell |  |  |
| /s/ Alison Redford | Director | February 21, 2023 |
| Alison Redford |  |  |
| /s/ Robert B. Hodgins | Director | February 21, 2023 |
| Robert B. Hodgins |  |  |
| /s/ Ronald Royal | Director | February 21, 2023 |
| Ronald Royal |  |  |
| /s/ Sondra Scott | Director | February 21, 2023 |
| Sondra Scott |  |  |
| /s/ David P. Smith | Director | February 21, 2023 |
| David P. Smith |  |  |
| /s/ Brooke Wade | Director | February 21, 2023 |
| Brooke Wade |  |  |

---

## Exhibit 10.15

**Exhibit 10.15**

**Dated _<u>20</u> February 2023**

**GRAN TIERRA ENERGY COLOMBIA GMBH** 

**GRAN TIERRA OPERATIONS COLOMBIA GMBH**

as Borrowers

and

**TRAFIGURA PTE LTD**

as Lender

and

**GRAN TIERRA ENERGY INC.**

as Guarantor

**DEED OF AMENDMENT AND RESTATEMENT**

relating to a facility agreement dated 18 August 2022<br>

&nbsp;&nbsp;&nbsp;&nbsp;

------

**Index**

**Clause&nbsp;&nbsp;&nbsp;&nbsp;Page**

---

| | |
|:---|:---|
| <u>[1](#ie10fdf31da9543589c8d4a3b4b2ea693_4)</u>[&nbsp;&nbsp;&nbsp;&nbsp;](#ie10fdf31da9543589c8d4a3b4b2ea693_4)<u>[Definitions and Interpretation](#ie10fdf31da9543589c8d4a3b4b2ea693_4)</u> | [2](#ie10fdf31da9543589c8d4a3b4b2ea693_4) |
| <u>[2](#ie10fdf31da9543589c8d4a3b4b2ea693_4)</u>[&nbsp;&nbsp;&nbsp;&nbsp;](#ie10fdf31da9543589c8d4a3b4b2ea693_4)<u>[Conditions Precedent](#ie10fdf31da9543589c8d4a3b4b2ea693_4)</u> | [3](#ie10fdf31da9543589c8d4a3b4b2ea693_4) |
| <u>[3](#ie10fdf31da9543589c8d4a3b4b2ea693_4)</u>[&nbsp;&nbsp;&nbsp;&nbsp;](#ie10fdf31da9543589c8d4a3b4b2ea693_4)<u>[Amendment and Restatement of Original Facility Agreement](#ie10fdf31da9543589c8d4a3b4b2ea693_4)</u> | [3](#ie10fdf31da9543589c8d4a3b4b2ea693_4) |
| <u>[4](#ie10fdf31da9543589c8d4a3b4b2ea693_4)</u>[&nbsp;&nbsp;&nbsp;&nbsp;](#ie10fdf31da9543589c8d4a3b4b2ea693_4)<u>[Guarantee and Security Confirmations](#ie10fdf31da9543589c8d4a3b4b2ea693_4)</u> | [4](#ie10fdf31da9543589c8d4a3b4b2ea693_4) |
| <u>[5](#ie10fdf31da9543589c8d4a3b4b2ea693_4)</u>[&nbsp;&nbsp;&nbsp;&nbsp;](#ie10fdf31da9543589c8d4a3b4b2ea693_4)<u>[Representations and Warranties](#ie10fdf31da9543589c8d4a3b4b2ea693_4)</u> | [4](#ie10fdf31da9543589c8d4a3b4b2ea693_4) |
| <u>[6](#ie10fdf31da9543589c8d4a3b4b2ea693_4)</u>[&nbsp;&nbsp;&nbsp;&nbsp;](#ie10fdf31da9543589c8d4a3b4b2ea693_4)<u>[Further Assurance](#ie10fdf31da9543589c8d4a3b4b2ea693_4)</u> | [6](#ie10fdf31da9543589c8d4a3b4b2ea693_4) |
| <u>[7](#ie10fdf31da9543589c8d4a3b4b2ea693_4)</u>[&nbsp;&nbsp;&nbsp;&nbsp;](#ie10fdf31da9543589c8d4a3b4b2ea693_4)<u>[Amendments, Waivers, Remedies and Invalidity](#ie10fdf31da9543589c8d4a3b4b2ea693_4)</u> | [6](#ie10fdf31da9543589c8d4a3b4b2ea693_4) |
| <u>[8](#ie10fdf31da9543589c8d4a3b4b2ea693_4)</u>[&nbsp;&nbsp;&nbsp;&nbsp;](#ie10fdf31da9543589c8d4a3b4b2ea693_4)<u>[Benefit](#ie10fdf31da9543589c8d4a3b4b2ea693_4)</u> | [7](#ie10fdf31da9543589c8d4a3b4b2ea693_4) |
| <u>[9](#ie10fdf31da9543589c8d4a3b4b2ea693_4)</u>[&nbsp;&nbsp;&nbsp;&nbsp;](#ie10fdf31da9543589c8d4a3b4b2ea693_4)<u>[Third Party Rights](#ie10fdf31da9543589c8d4a3b4b2ea693_4)</u> | [7](#ie10fdf31da9543589c8d4a3b4b2ea693_4) |
| <u>[10](#ie10fdf31da9543589c8d4a3b4b2ea693_4)</u>[&nbsp;&nbsp;&nbsp;&nbsp;](#ie10fdf31da9543589c8d4a3b4b2ea693_4)<u>[Miscellaneous](#ie10fdf31da9543589c8d4a3b4b2ea693_4)</u> | [7](#ie10fdf31da9543589c8d4a3b4b2ea693_4) |
| <u>[11](#ie10fdf31da9543589c8d4a3b4b2ea693_4)</u>[&nbsp;&nbsp;&nbsp;&nbsp;](#ie10fdf31da9543589c8d4a3b4b2ea693_4)<u>[Notices](#ie10fdf31da9543589c8d4a3b4b2ea693_4)</u> | [7](#ie10fdf31da9543589c8d4a3b4b2ea693_4) |
| <u>[12](#ie10fdf31da9543589c8d4a3b4b2ea693_4)</u>[&nbsp;&nbsp;&nbsp;&nbsp;](#ie10fdf31da9543589c8d4a3b4b2ea693_4)<u>[Counterparts and Execution as a Deed](#ie10fdf31da9543589c8d4a3b4b2ea693_4)</u> | [7](#ie10fdf31da9543589c8d4a3b4b2ea693_4) |
| <u>[13](#ie10fdf31da9543589c8d4a3b4b2ea693_4)</u>[&nbsp;&nbsp;&nbsp;&nbsp;](#ie10fdf31da9543589c8d4a3b4b2ea693_4)<u>[Governing Law](#ie10fdf31da9543589c8d4a3b4b2ea693_4)</u> | [7](#ie10fdf31da9543589c8d4a3b4b2ea693_4) |
| <u>[14](#ie10fdf31da9543589c8d4a3b4b2ea693_4)</u>[&nbsp;&nbsp;&nbsp;&nbsp;](#ie10fdf31da9543589c8d4a3b4b2ea693_4)<u>[Jurisdiction](#ie10fdf31da9543589c8d4a3b4b2ea693_4)</u> | [8](#ie10fdf31da9543589c8d4a3b4b2ea693_4) |
| <u>[15](#ie10fdf31da9543589c8d4a3b4b2ea693_4)</u>[&nbsp;&nbsp;&nbsp;&nbsp;](#ie10fdf31da9543589c8d4a3b4b2ea693_4)<u>[Waiver of Immunity](#ie10fdf31da9543589c8d4a3b4b2ea693_4)</u> | 8 |

---

**Schedules**

---

| | |
|:---|:---|
| <u>[Schedule 1 Amended and Restated Facility Agreement](#ie10fdf31da9543589c8d4a3b4b2ea693_4)</u> | 9 |
| <u>[Schedule 2 Conditions Precedent](#ie10fdf31da9543589c8d4a3b4b2ea693_4)</u> | [1](#ie10fdf31da9543589c8d4a3b4b2ea693_4)0 |

---

**Execution**

<u>[Execution Pages](#ie10fdf31da9543589c8d4a3b4b2ea693_7)</u><sub>11</sub>

------

**THIS DEED** is made on _<u>20</u> February 2023.

**PARTIES**

(1)**GRAN TIERRA ENERGY COLOMBIA GMBH**, registered as a limited liability company under the laws of the Switzerland, with its registered office at Pilatusstrasse 41, 6003 Lucerne, Switzerland;

(2)**GRAN TIERRA OPERATIONS COLOMBIA GMBH,** registered as a limited liability company under the laws of the Switzerland, with its registered office at Pilatusstrasse 41, 6003 Lucerne, Switzerland,

each a "**Borrower**", and together the "**Borrowers**";

(3)**GRAN TIERRA ENERGY INC.,** a company incorporated under the laws of the State of Delaware with its registered office at 500 Centre Street SE Calgary<br>Alberta Canada T2G 1A6 (the "**Guarantor**"); and

(4)**TRAFIGURA PTE LTD** a company incorporated under the laws of Singapore, having its offices at 10 Collyer Quay #29-01/05, Ocean Financial Centre, Singapore 049315, Singapore (the "**Lender**"),

and any of the Borrowers, the Guarantor and the Lender, a "**Party**", and, together, the "**Parties**".

**BACKGROUND**

(A)The Lenders made available to the Borrower in an amount of up to $150,000,000 pursuant to the Original Facility Agreement (as defined below).

(B)On 19 December 2022 each of the Borrowers de-registered as a Cayman Islands company and elected to subject itself to Swiss law in accordance with section 161 of the Swiss Federal Act on Private International Law.

(C)The parties to the Original Facility Agreement now wish to amend and restate the Original Facility Agreement to reflect certain amendments.

**OPERATIVE PROVISIONS**

**1DEFINITIONS AND INTERPRETATION**

**14.1Definitions**

In this Deed:

"**Amended and Restated Facility Agreement**" means the Original Facility Agreement as amended and restated by this Deed.

"**Guarantee**" means the guarantee and indemnity expressed to be created pursuant to clause 13 (*Guarantee*) of the Original Facility Agreement.

------

"**Migration**" means the transfer of the registered seat of the Borrowers from the Cayman Islands to Switzerland.

"**Original Facility Agreement**" means the facility agreement dated 18 August 2022 between, the Lender, the Guarantor and the Borrowers.

"**Subordination Agreement**" means the subordination agreements to be entered into between the Borrowers (or any Borrower) and the relevant member of the Group in respect of any loan made by members of the Group to the Borrowers which are outstanding on the date of this Deed.

"**Swiss Financial Statements**" means the balance sheet of each Borrower dated 30 September 2022.

**14.2Terms defined in other Finance Documents**

Unless defined in this Deed, or the context otherwise requires, a term defined in the Amended and Restated Facility Agreement, has the same meaning in this Deed, or any notice given under or in connection with this Deed.

**14.3Construction**

The rules of interpretation contained in clause 1.2 (*Interpretation*) of the Original Facility Agreement shall apply to the construction of this Deed, or in any notice given under or in connection with this Deed, *mutatis mutandis*.

**2CONDITIONS PRECEDENT**

The utilisation of the first Loan under the Amended and Restated Facility Agreement is subject to the Lender receiving, in form and substance satisfactory to it in its absolute discretion, all of the documents and other evidence referred to in schedule 1 (*Conditions Precedent*) of the Amended and Restated Facility Agreement and Schedule 2 (*Conditions Precedent*) of this Deed, which are for the sole benefit of the Lender, and may be waived by the Lender, in whole or in part, prior to any Utilisation Date without prejudice to the right of the Lender to require satisfaction of such waived condition as a condition subsequent (to be agreed in writing by the Lender on terms acceptable to the Lender at the time of such waiver).

**3AMENDMENT AND RESTATEMENT OF ORIGINAL FACILITY AGREEMENT**

**14.1Amendment and Restatement of Original Facility Agreement**

(a)The Parties agree that with effect on and from the date of this Deed the Original Facility Agreement shall be amended and restated so that it shall be read and construed for all purposes as set out in Schedule 1 (*Amended and Restated Facility Agreement*).

(b)The Finance Documents shall be read and construed as if all references therein to the Original Facility Agreement are references to the Amended and Restated Facility Agreement.

&nbsp;&nbsp;&nbsp;&nbsp;2&nbsp;&nbsp;&nbsp;&nbsp;

------

**14.2Continuing obligations**

Each Borrower confirms that its obligations under the Finance Documents are continuing obligations and will extend to the ultimate balance of sums payable by any Obligor under the Finance Documents, regardless of any intermediate payment or discharge in whole or in part.

**4GUARANTEE AND SECURITY CONFIRMATIONS**

**14.1Guarantor confirmation**

The Guarantor confirms for the benefit of the Lender that with effect on and from the date of this Deed:

(a)its Guarantee remains in full force and effect notwithstanding the amendments referred to in Clause 3.1 (*Amendment and Restatement of Original Facility Agreement*);

(b)its Guarantee extends to and continues to guarantee and indemnify the obligations of the Borrowers under the Finance Documents as amended and restated by this Deed and remains in full force and effect in accordance with its terms as so extended; and

(c)the obligations of the Borrowers under the Finance Documents as amended and restated by this Deed (including, but not limited to, under the Amended and Restated Facility Agreement and as a consequence of the Migration) are included in the obligations that are the subject of the Guarantee.

**14.2Security confirmation**

(a)remains in full force and effect notwithstanding the amendments referred to in Clause 3.1 (*Amendment and Restatement of Original Facility Agreement*) and the Migration;

(b)extends to and continues to secure the obligations of each Borrower under the Finance Documents as amended and restated by this Deed; and

(c)remains in full force and effect in accordance with its terms as so extended.

**5REPRESENTATIONS AND WARRANTIES**

Each Obligor makes the representations and warranties set out in this Clause 5 (*Representations and Warranties*) on the date of this Deed to the Lender. Unless a representation is expressed to be given at a specific date.

**14.1Status**

(a)It is duly incorporated and validly existing under the laws of the jurisdiction of its incorporation, or in the case of the Borrowers, the laws of Switzerland.

(b)The Migration has been validly completed from a Cayman Islands and Swiss corporate law perspective.

&nbsp;&nbsp;&nbsp;&nbsp;3&nbsp;&nbsp;&nbsp;&nbsp;

------

(c)The Migration has been validly registered in Colombia with regards to the Sellers being Colombian branches of the Borrowers.

(d)It has the power to own its assets and carry on its business as it is being conducted.

**14.2Binding obligations**

(a)Subject to the Legal Reservations, the obligations expressed to be assumed by it in this Deed are legal, valid, binding and enforceable obligations.

(b)The obligations expressed to be assumed by the Borrowers in the Original Facility Agreement and in this Deed remain legal, valid, binding and enforceable obligations following the Migration.

**14.3Non-conflict with other obligations**

The entry into and performance by it of, and the transactions contemplated by, this Deed do not and will not conflict with:

(a)any law or regulation applicable to it;

(b)its constitutional documents; or

(c)any agreement or instrument binding upon it, in a manner that has or would reasonably be expected to have a Material Adverse Effect.

**14.4Power and authority**

(a)It has the power to enter into, perform and deliver, and has taken all necessary action to authorise its entry into, performance and delivery of, this Deed and the transactions contemplated by this Deed.

(b)No limit on its powers (including borrowing powers) will be exceeded as a result of the advancing or giving of guarantees or indemnities contemplated by this Deed.

**14.5Validity and admissibility in evidence**

All Authorisations required or desirable:

(a)to enable it to lawfully enter into, exercise its rights and comply with its obligations in this Deed;

(b)to make this Deed admissible in evidence in their Relevant Jurisdictions; and

(c)to carry on its business in the ordinary course and in all material respects as it is being conducted,

have been obtained or effected or will be obtained or effected prior to its entry into such documents and are or will then be in full force and effect.

&nbsp;&nbsp;&nbsp;&nbsp;4&nbsp;&nbsp;&nbsp;&nbsp;

------

**14.6Swiss Financial Statements**

(a)According to their respective Swiss Financial Statements, the Borrowers, on a consolidated basis, have freely distributable reserves, within the meaning of Swiss corporate and accounting laws, in an amount exceeding the total amount of their payment obligations under the Finance Documents.

(b)There are no indications that the level of the freely distributable reserves of each of the Borrowers, on a consolidated basis, shall be reduced below the total amount of their payment obligations under the Finance Documents until full settlement thereof by the Obligors.

**14.7Absence of any Financial Over-Indebtedness** 

(a)The Borrowers are not in a position of financial over-indebtedness within the meaning of Article 725b of the Swiss Code of Obligations.

(b)There are no indications that any of the Borrowers shall be in a position of financial over-indebtedness within the meaning of Article 725b of the Swiss Code of Obligations until full settlement of their payment obligations under the Finance Documents.

**14.8Repeating Representations**

Subject to the execution of the Subordination Agreements, the Repeating Representations:

(a)are true; and

(b)would also be true if references to "**this Deed**" and to the "**Facility Agreement**" were construed as references to "**this Deed**" or "**the Amended and Restated Facility Agreement**".

In each case, each Repeating Representation is made by reference to the circumstances existing at the date of this Deed and on any other date on which such representations are deemed to repeat.

**6FURTHER ASSURANCE**

Each Borrower shall at the request of the Lender execute and deliver all documents and instruments and take all other actions as may be required or desirable for the purpose of giving full effect to this Deed and the transactions contemplated in this Deed.

**7AMENDMENTS, WAIVERS, REMEDIES AND INVALIDITY**

**14.1Amendments and waivers**

Any term of this Deed may be amended or waived only:

(a)in writing;

(b)in accordance with clause 25.1 (*Amendments*) of the Facility Agreement; and

(c)with the agreement of all of the Parties to this Deed.

&nbsp;&nbsp;&nbsp;&nbsp;5&nbsp;&nbsp;&nbsp;&nbsp;

------

**14.2Remedies and waivers**

(a)No failure to exercise, nor any delay in exercising, on the part of the Lender, any right or remedy under this Deed, shall operate as a waiver, nor shall any single or partial exercise of any right or remedy prevent any further or other exercise or the exercise of any other right or remedy.

(b)The rights and remedies provided in this Deed are cumulative and not exclusive of any rights or remedies provided by law.

**14.3Partial invalidity**

If, at any time, any provision of this Deed is or becomes illegal, invalid or unenforceable in any respect under the law of any jurisdiction, neither the legality, validity or enforceability of the remaining provisions of this Deed nor of such provision under the laws of any other jurisdiction shall in any way be affected or impaired.

**8BENEFIT**

This Deed shall be binding upon each of the Parties to this Deed and their respective successors in title and shall remain for the benefit of each of the Parties to this Deed and their respective successors, assignees and transferees notwithstanding any change in the constitution of any Party or its absorption in, or amalgamation with, or the acquisition of all or part of its undertaking or assets by any other person, or any reconstruction or reorganization of any kind.

**9THIRD PARTY RIGHTS**

Except for the Lender's creditors or financiers to whom the rights of the Lender under this Deed may be assigned:

(a)a person who is not a party to this Deed has no right under the Contract (Rights of Third Parties) Act 1999 to enforce or enjoy the benefit of any term of this Deed.

(b)the consent of any person who is not a party to this Deed is not required to rescind or vary this Deed at any time.

**10MISCELLANEOUS**

14.1The Lender and Borrowers hereby designate this Deed as a Finance Document.

14.2Except as amended by this Deed, the Finance Documents remain in full force and effect.

14.3No waiver is given by this Deed, and the Lender expressly reserves all of its rights and remedies in respect of any breach of, or other Default under, any Finance Document.

&nbsp;&nbsp;&nbsp;&nbsp;6&nbsp;&nbsp;&nbsp;&nbsp;

------

**11NOTICES**

**14.1**Clause 22(*Notices*) of the Facility Agreement is hereby incorporated into this Deed as if set out in full in this Deed *mutatis mutandis*.

**12COUNTERPARTS AND EXECUTION AS A DEED** 

14.1This Deed may be executed in any number of counterparts, and this has the same effect as if the signatures on the counterparts were on a single copy of this Deed.

14.2The Parties intend this Deed to be a deed and confirm that it is executed and delivered as a deed, notwithstanding the fact that any one or more of the Parties may only execute it under hand.

**13GOVERNING LAW**

14.1This Deed and any dispute or claim arising out of or in connection with it or its subject matter or formation (including non-contractual disputes or claims) shall be governed by, and construed in accordance with, English law.

14.2The Parties irrevocably submit to the non-exclusive jurisdiction of the courts of England and Wales to support and assist the arbitration process pursuant to Clause 14, including if necessary the grant of interlocutory relief pending the outcome of that process.

**14JURISDICTION**

**14.1Arbitration**

(a)Any dispute arising out of or in connection with this Deed, including any question regarding its existence, validity or termination or any non-contractual obligation arising out of or in connection with this Deed (a "**Dispute**"), shall be referred to and finally resolved by arbitration under the rules of the London Court of International Arbitration (the LCIA Rules), which rules are deemed to be incorporated by reference into this Clause.

(b)The number of arbitrators shall be three (3), Lender shall appoint one (1) arbitrator and the Borrowers shall (collectively) appoint one (1) arbitrator. The two (2) arbitrators nominated by or on behalf of Borrowers and Lender together shall provide a list identifying five (5) candidates that the two (2) arbitrators recommend Borrowers and Lender consider appointing to be the third arbitrator, who shall act as chairperson of the tribunal. If Borrowers and Lender do not agree on the third arbitrator within fourteen (14) days of receiving the list of recommendations, then the third arbitrator, who shall act as chairperson, shall be appointed by the LCIA. If Borrowers or Lender fail to appoint an arbitrator within thirty (30) days of receiving notice of the appointment of an arbitrator by the other Party, such arbitrator shall be appointed by the LCIA Court.

(c)The arbitrators shall have experience of commodities trading.

(d)The seat or legal place of arbitration, shall be London.

(e)The language to be used in the arbitral proceedings shall be English.

(f)The tribunal's award shall be final and binding on the Parties.

&nbsp;&nbsp;&nbsp;&nbsp;7&nbsp;&nbsp;&nbsp;&nbsp;

------

**14.2Interim Relief & Warranty**

(a)Notwithstanding the provisions of Clause 14.1, either Party may commence and pursue proceedings for interim or conservatory relief against the other Party in any court in any jurisdiction and the commencement and pursuit of such proceedings in any one court or jurisdiction shall not preclude the other Party from commencing or pursuing proceedings in any other court or jurisdiction (whether concurrently or not) if and to the extent permitted by the applicable law.

(b)The Parties warrant that they have entered into this contract in a commercial capacity and that with respect to this Deed they are respectively in all respects subject to civil and commercial law.

(c)The Parties hereby consent generally in respect of legal proceedings and/or arbitration arising out of or in connection with this contract to the giving of any relief, or to the issue of any process in connection with such action or proceedings irrespective of the jurisdiction in question.

**15WAIVER OF IMMUNITY**

To the extent that a Borrower or Lender may be entitled in any jurisdiction to claim for itself or any of its property or assets immunity in respect of its obligations this Deed from service of process, jurisdiction, suit, judgment, execution, attachment (whether before judgment, in aid of execution or otherwise) or legal process or to the extent that in any jurisdiction there may be attributed to it all or any of its property or assets immunity of that kind (whether or not claimed), the Borrowers and the Lender irrevocably agree not to claim and irrevocably waive that immunity.

**This Deed has been executed and delivered as a deed on the date stated at the beginning of this Deed.**

&nbsp;&nbsp;&nbsp;&nbsp;8&nbsp;&nbsp;&nbsp;&nbsp;

------

**Schedule 1<br>AMENDED AND RESTATED FACILITY AGREEMENT**

&nbsp;&nbsp;&nbsp;&nbsp;9&nbsp;&nbsp;&nbsp;&nbsp;

------

**Schedule 2<br>CONDITIONS PRECEDENT**

**Schedule 1Corporate Documents**

(a)A copy of a certified excerpt of the commercial register for each Borrower.

(b)A copy of certified articles of association for each Borrower.

(c)A copy of the authentic incorporation deed and related supporting documents including the resolution signed by all the holders of the issued shares in each of the Borrowers held with the notary implementing the transfer of the registered seat of each Borrower in Switzerland.

(d)A copy of a resolution of the shareholders of each of the Borrowers approving the terms of, and the transactions contemplated by, this Deed.

(e)A copy of a resolution of the board of directors of each of the Borrowers approving the terms of, and the transactions contemplated by, this Deed and authorising a specified person or persons to execute this Deed on its behalf.

(f)A copy of the Swiss Financial Statements.

**1Finance Documents**

(a)A duly executed original of this Deed.

(b)A duly executed copy of each Subordination Agreement.

**2Legal Opinions**

A legal opinion of Chabrier Avocats SA (in agreed form and addressed to the Lender) relating to capacity and authority in respect of the Borrowers to enter into this Deed, relating to the laws of Switzerland.

**3Other**

(a)A copy of any other document, opinion or assurance which the Lender considers to be necessary or desirable (if it has notified any Borrower accordingly) in connection with the entry into and performance of the transactions contemplated by any Transaction Document or for the validity and enforceability of any Transaction Document.

(b)Evidence that the fees, costs and expenses then due and payable by any Borrower have been paid or will be paid by the first Utilisation Date.

(c)Provision of all information from the Borrowers as required by the Lender to enable it to comply with all "know your customer" or similar identification procedures under all applicable laws and regulations. The Lender shall notify the details of such information at least three (3) Business Days before the Utilisation Date.

&nbsp;&nbsp;&nbsp;&nbsp;10&nbsp;&nbsp;&nbsp;&nbsp;

------

**EXECUTION PAGES**

**THE LENDER**

**EXECUTED** as a **DEED** &nbsp;&nbsp;&nbsp;&nbsp;)

on behalf of&nbsp;&nbsp;&nbsp;&nbsp;)

**TRAFIGURA PTE LTD**&nbsp;&nbsp;&nbsp;&nbsp;)

being the persons who, &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;)

in accordance with the laws of Singapore, &nbsp;&nbsp;&nbsp;&nbsp;)

are acting under the authority of the company)&nbsp;&nbsp;&nbsp;&nbsp;

<u>_/s/ Matthieu Milandri</u>_____

Authorised Signatory

Name: Matthieu MILANDRI

<u>_/s/ Nicolas Jobert</u>_________

Authorised Signatory

Name: Nicolas JOBERT

&nbsp;&nbsp;&nbsp;&nbsp;11&nbsp;&nbsp;&nbsp;&nbsp;

------

**THE BORROWERS**

**EXECUTED** as a **DEED** &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;)

on behalf of&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;)

**GRAN TIERRA ENERGY COLOMBIA GMBH**&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;)

being the persons who, &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;)

in accordance with the laws of Switzerland, &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;)

are acting under the authority of the company &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;)&nbsp;&nbsp;&nbsp;&nbsp;

<u>_/s/ Stefan Smit</u>___________

Director

Name: Stefan Smit

<u>_/s/ Richard Harker</u>_________

Director

Name: Richard Harker

**THE LENDER**

**EXECUTED** as a **DEED** &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;)

on behalf of&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;)

**GRAN TIERRA OPERATIONS COLOMBIA GMBH**&nbsp;&nbsp;&nbsp;&nbsp;)

being the persons who, &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;)

in accordance with the laws of Switzerland,&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; &nbsp;&nbsp;&nbsp;&nbsp;)

are acting under the authority of the company &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;)&nbsp;&nbsp;&nbsp;&nbsp;

<u>_/s/ Stefan Smit</u>_____________

Director

Name: Stefan Smit

<u>_/s/ Richard Harker</u>___________

Director

Name: Richard Harker

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;

------

**THE GUARANTOR**

**EXECUTED** as a **DEED** &nbsp;&nbsp;&nbsp;&nbsp;)

on behalf of&nbsp;&nbsp;&nbsp;&nbsp;)

**GRAN TIERRA ENERGY INC.**&nbsp;&nbsp;&nbsp;&nbsp;)

being the persons who, &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;)

in accordance with the laws of Delaware, &nbsp;&nbsp;&nbsp;&nbsp;)

are acting under the authority of the company)&nbsp;&nbsp;&nbsp;&nbsp;

<u>_/s/ Ryan Ellson</u>____________

Ryan Ellson (Executive Vice President and Chief

Financial Officer)

Witness: Michelle Ellson

<u>_/s/ Michelle Ellson</u>_________

Name

Address: 8830 9 Ave SW

&nbsp;&nbsp;&nbsp;&nbsp;Calgary AB T3H0C9

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;

## Exhibit 21.1

**Exhibit 21.1**

**SUBSIDIARIES OF GRAN TIERRA ENERGY INC.**

The table below sets forth all subsidiaries of Gran Tierra Energy Inc. and the state or other jurisdiction of incorporation or organization of each as of February 16, 2023.

---

| | |
|:---|:---|
| **Subsidiary** | **Jurisdiction of Incorporation** |
| GTE Alberta Inc. | Alberta, Canada |
| Gran Tierra Energy N.V. ULC | Alberta, Canada |
| Gran Tierra Energy International Holdings Ltd. | Cayman Islands |
| Gran Tierra Energy Resources Inc. | Cayman Islands |
| Petrolifera Petroleum (Colombia) Limited | Cayman Islands |
| Gran Tierra Energy Mexico Holdings 1 LLC | Delaware |
| Gran Tierra Energy Mexico Holdings 2 LLC | Delaware |
| Gran Tierra Mexico Energy. S.A. de C.V. | Mexico |
| Gran Tierra Resources GmbH | Switzerland |
| Gran Tierra Energy CI GmbH | Switzerland |
| Gran Tierra Operations Colombia GmbH | Switzerland |
| Gran Tierra Energy Colombia GmbH | Switzerland |
| Southeast Energy GmbH | Switzerland |
| Suroco Energy Venezuela | Venezuela |

---

## Exhibit 23.1

**Exhibit 23.1**

**Consent of Independent Registered Public Accounting Firm** 

We consent to the incorporation by reference in the registration statement Nos. 333-146815, 333-156994, 333-171122 and 333-183029, on Form S-8, and Registration Statement No. 333-258433 on Form S-3 of Gran Tierra Energy Inc. of our reports dated February 21, 2023, with respect to the consolidated balance sheets of Gran Tierra Energy Inc. as of December 31, 2022 and 2021, the related consolidated statements of operations, shareholders' equity, and cash flows for each of the years in the three-year period ended December 31, 2022, and the related notes, and the effectiveness of internal control over financial reporting as of December 31, 2022, which reports appear in the December 31, 2022 annual report on Form 10-K of Gran Tierra Energy Inc. dated February 21, 2023.

/s/ KPMG LLP

Chartered Professional Accountants

Calgary, Canada

February 21, 2023

## Exhibit 23.2

**Exhibit 23.2**

**Consent of Independent Reserve Engineers**

Mr. Ryan Ellson

Chief Financial Officer

Gran Tierra Energy Inc. ("Gran Tierra")

500 Centre Street S.E.,

Calgary, Alberta, Canada T2G 1A6

---

| | |
|:---|:---|
| **Re:** | **Gran Tierra Registration Statement:** |
| | **Form S-8 (Reg. Nos. 333-146815, 333-156994, 333-171122 and 333-183029)** |
| | **Form S-3 (Reg. No. 333-258433)** |
| | **Filed with the United States Securities Exchange Commission** |

---

Dear Mr. Ellson:

As the independent reserve engineers for Gran Tierra, McDaniel & Associates Consultants Ltd. ("McDaniel"), hereby confirms that it has granted and not withdrawn its consent to the filing of McDaniel reserve report and to the reference to McDaniel's evaluation of Gran Tierra's reserves as of December 31, 2022, in the form and context disclosed by Gran Tierra in its Annual Report on Form 10-K submission filed with the United States Securities and Exchange Commission on approximately February 21, 2023, for the period ended December 31, 2022, and to the incorporation by reference thereof in the registration statements listed above.

Please do not hesitate to contact us if you have any questions.

---

| |
|:---|
| McDaniel & Associates Consultants Ltd.  |
| /s/ Cam Boulton |
| Cam Boulton |
| Executive Vice President |

---

Dated: February 21, 2023

Calgary, Alberta

CANADA

## Exhibit 31.1

**Exhibit 31.1**

**CERTIFICATION OF CHIEF EXECUTIVE OFFICER** 

**PURSUANT TO RULE 13A-14(A) AND RULE 15D-14(A)** 

**OF THE SECURITIES EXCHANGE ACT OF 1934, AS AMENDED**

I, Gary S. Guidry, certify that:

&nbsp;&nbsp;&nbsp;&nbsp;1. I have reviewed this Form 10-K of Gran Tierra Energy Inc.;

&nbsp;&nbsp;&nbsp;&nbsp;2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report;

&nbsp;&nbsp;&nbsp;&nbsp;3. Based on my knowledge, the financial statements, and other financial information included in this report, fairly present in all material respects the financial condition, results of operations and cash flows of the registrant as of, and for, the periods presented in this report;

&nbsp;&nbsp;&nbsp;&nbsp;4. The registrant's other certifying officer and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) and internal control over financial reporting (as defined in Exchange Act Rules 13a-15(f) and 15d-15(f)) for the registrant and have:

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(a) Designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our supervision, to ensure that material information relating to the registrant, including its consolidated subsidiaries, is made known to us by others within those entities, particularly during the period in which this report is being prepared;

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(b) Designed such internal control over financial reporting, or caused such internal control over financial reporting to be designed under our supervision, to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles;

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(c) Evaluated the effectiveness of the registrant's disclosure controls and procedures and presented in this report our conclusions about the effectiveness of the disclosure controls and procedures, as of the end of the period covered by this report based on such evaluation; and

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(d) Disclosed in this report any change in the registrant's internal control over financial reporting that occurred during the registrant's most recent fiscal quarter (the registrant's fourth fiscal quarter in the case of an annual report) that has materially affected, or is reasonably likely to materially affect, the registrant's internal control over financial reporting; and

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;5. The registrant's other certifying officer and I have disclosed, based on our most recent evaluation of internal control over financial reporting, to the registrant's auditors and the audit committee of the registrant's board of directors (or persons performing the equivalent functions):

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(a) All significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting which are reasonably likely to adversely affect the registrant's ability to record, process, summarize and report financial information; and

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(b) Any fraud, whether or not material, that involves management or other employees who have a significant role in the registrant's internal control over financial reporting.

---

| | |
|:---|:---|
| Date: February 21, 2023 | /s/ Gary S. Guidry |
|  | By: Gary S. Guidry |
|  | President and Chief Executive Officer, Director |
|  | (Principal Executive Officer) |

---

## Exhibit 31.2

**Exhibit 31.2**

**CERTIFICATION OF CHIEF FINANCIAL OFFICER** 

**PURSUANT TO RULE 13A-14(A) AND RULE 15D-14(A)** 

**OF THE SECURITIES EXCHANGE ACT OF 1934, AS AMENDED**

I, Ryan Ellson, certify that:

1. I have reviewed this Form 10-K of Gran Tierra Energy Inc.;

2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report;

3. Based on my knowledge, the financial statements and other financial information included in this report, fairly present in all material respects the financial condition, results of operations, and cash flows of the registrant as of, and for, the periods presented in this report;

4. The registrant's other certifying officer and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) and internal control over financial reporting (as defined in Exchange Act Rules 13a-15(f) and 15d-15(f)) for the registrant and have:

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(a) Designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our supervision, to ensure that material information relating to the registrant, including its consolidated subsidiaries, is made known to us by others within those entities, particularly during the period in which this report is being prepared;

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(b) Designed such internal control over financial reporting, or caused such internal control over financial reporting to be designed under our supervision to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles;

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(c) Evaluated the effectiveness of the registrant's disclosure controls and procedures and presented in this report our conclusions about the effectiveness of the disclosure controls and procedures, as of the end of the period covered by this report based on such evaluation; and

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(d) Disclosed in this report any change in the registrant's internal control over financial reporting that occurred during the registrant's most recent fiscal quarter (the registrant's fourth fiscal quarter in the case of an annual report) that has materially affected, or is reasonably likely to materially affect, the registrant's internal control over financial reporting; and

5. The registrant's other certifying officer and I have disclosed, based on our most recent evaluation of internal control over financial reporting, to the registrant's auditors and the audit committee of the registrant's board of directors (or persons performing the equivalent functions):

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(a) All significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting which are reasonably likely to adversely affect the registrant's ability to record, process, summarize and report financial information; and

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(b) Any fraud, whether or not material, that involves management or other employees who have a significant role in the registrant's internal control over financial reporting.

---

| | |
|:---|:---|
| Date: February 21, 2023 | /s/ Ryan Ellson |
|  | By: Ryan Ellson |
|  | Chief Financial Officer and Executive Vice President, Finance |
|  | (Principal Financial Officer) |

---

## Exhibit 32.1

**Exhibit 32.1**

**Certification of Chief Executive Officer and Chief Financial Officer** 

**Pursuant to Section 906 of the Sarbanes-Oxley Act of 2002** 

**(Section 1350, Chapter 63 of Title 18, United States Code)**

Pursuant to the requirement set forth in Rule 13a-14(b) of the Securities Exchange Act of 1934, as amended (the "Exchange Act") and Section 1350, Chapter 63 of Title 18 of the United States Code (18 U.S.C-§1350), each of Gary Guidry, President and Chief Executive Officer of Gran Tierra Energy Inc., a Delaware corporation (the "Company"), and Ryan Ellson, Chief Financial Officer of the Company, does hereby certify, to such officer's knowledge that:

The Annual Report on Form 10-K for the fiscal year ended December 31, 2022 (the "Form 10-K") to which this Certification is attached as Exhibit 32.1 fully complies with the requirements of Section 13(a) or 15(d) of the Exchange Act. The information contained in the Form 10-K fairly presents, in all material respects, the financial condition and results of operations of the Company.

IN WITNESS WHEREOF, the undersigned have set their hands hereto as of the 21st day of February 2023.

---

| |
|:---|
| /s/ Gary S. Guidry |
| By: Gary S. Guidry |
| President and Chief Executive Officer, Director |
| /s/ Ryan Ellson |
| By: Ryan Ellson |
| Chief Financial Officer and Executive Vice President, Finance |

---

The foregoing certification is being furnished solely pursuant to Section 906 of the Sarbanes-Oxley Act of 2002 (Section 1350, Chapter 63 of Title 18, United States Code) and is not deemed filed with the Securities and Exchange Commission as part of the Form 10-K or as a separate disclosure document and is not to be incorporated by reference into any filing of the Company under the Securities Act of 1933, as amended, or the Exchange Act (whether made before or after the date of the Form 10-K), irrespective of any general incorporation language contained in such filing.

## Exhibit 99.1

**Exhibit 99.1**

***THIRD PARTY REPORT ON RESERVES***

***By McDaniel & Associates Consultants Ltd. ("McDaniel") - (Independent Qualified Reserves Evaluator)***

**This report is provided to satisfy the requirements contained in Item 1202(a)(8) of U.S. Securities and Exchange Commission Regulation S-K** with respect to Gran Tierra Energy Inc's ("Gran Tierra") oil and gas reserves as of December 31, 2022, and to provide the qualifications of the technical person primarily responsible for overseeing the reserve estimation process**.** 

The numbering of items below corresponds to the requirements set out in Item 1202(a)(8) of Regulation S-K. Terms to which a meaning is ascribed in *Regulation S-K* and *Regulation S-X* have the same meaning in this report.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;i.We have prepared an independent estimate of the oil and gas reserves of Gran Tierra for the management and the board of directors of Gran Tierra. The primary purpose of our evaluation report was to provide estimates of reserves information in support of Gran Tierra's year-end reserves reporting requirements under U.S. Securities Regulation S-K and for other internal business and financial needs of Gran Tierra.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;ii.We estimated the reserves of Gran Tierra as at December 31, 2022. The completion date of our report is January 24, 2023.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;iii.McDaniel evaluated 100% of the reserves of Gran Tierra.

The following table sets forth the net after royalty reserves of Gran Tierra:

------

---

| | | | | |
|:---|:---|:---|:---|:---|
| **Category** | **Crude Oil**<br>**Mbbl** | **Natural Gas**<br>**MMcf** | **Oil Equivalent**<br>**MBOE** <sup>(1)</sup> | **Portion of Reserves Evaluated, %** |
| Proved |  |  |  |  |
| &nbsp;&nbsp;&nbsp;Developed |  |  |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Colombia | 39645 | 858 | 39788 | 100 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Ecuador | 715 |  | 715 | 100 |
| &nbsp;&nbsp;&nbsp;Undeveloped |  |  |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Colombia | 22822 | 588 | 22920 | 100 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Ecuador | 2085 |  | 2085 | 100 |
| Total Proved | 65267 | 1446 | 65508 | 100 |
| Probable |  |  |  |  |
| &nbsp;&nbsp;&nbsp;Developed |  |  |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Colombia | 11014 | 58 | 11024 | 100 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Ecuador | 227 |  | 227 | 100 |
| &nbsp;&nbsp;&nbsp;Undeveloped |  |  |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Colombia | 20098 | 271 | 20143 | 100 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Ecuador | 4281 |  | 4281 | 100 |
| Total Probable | 35620 | 329 | 35675 | 100 |
| Possible |  |  |  |  |
| &nbsp;&nbsp;&nbsp;Developed |  |  |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Colombia | 11646 | 71 | 11658 | 100 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Ecuador | 172 |  | 172 | 100 |
| &nbsp;&nbsp;&nbsp;Undeveloped |  |  |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Colombia | 21551 | 264 | 21595 | 100 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Ecuador | 5756 |  | 5756 | 100 |
| Total Possible | 39125 | 335 | 39181 | 100 |

---

&nbsp;&nbsp;&nbsp;&nbsp;

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<sup>(1)</sup> Oil equivalence factors: Crude Oil 1 bbl/bbl, Natural Gas 6 Mcf/bbl.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;iv.As noted in item iii., our evaluation covered 100% of the reserves of Gran Tierra. The assumptions, methods, and procedures followed in the evaluation reflect the standards set out in the Canadian Oil and Gas Evaluation Handbook (the "COGE Handbook") modified as necessary to conform to the standards under the U.S. Financial Accounting Standards Board policies (the "FASB Standards") and the U.S. Securities and Exchange Commission Regulations ("SEC requirements").

Data used in our evaluation of Gran Tierra's reserves was obtained from regulatory agencies, public sources, and Gran Tierra personnel and Gran Tierra files. In the preparation of our report, we have accepted as presented, and have relied, without independent verification, upon a variety of information furnished by Gran Tierra such as interests and burdens on properties, recent production volumes, product transportation, and marketing and sales agreements, historical revenue, capital costs, operating expense data, budget forecasts and capital cost estimates and well data for recently drilled wells. If in the course of our evaluation, the validity or sufficiency of any material information was brought into question; we did not rely on such information until such concerns were resolved to our satisfaction.

Gran Tierra warranted in a representation letter to us that, to the best of its knowledge and belief, all data furnished to us was accurate in all material respects, and no material data relevant to our evaluation was omitted.

A field examination of the evaluated properties was not performed, nor was it considered necessary for our report.

------

In our opinion, estimates provided in our report have, in all material respects, been determined in accordance with the applicable industry standards, and results provided in our report and summarized herein are appropriate for inclusion in filings under Regulation S-K.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;v.As required under SEC Regulation S-X, reserves are those quantities of oil and gas that are estimated to be economically producible under existing economic conditions. The primary economic assumptions relate to pricing, capital and operating costs, recoverable volumes and production forecasts.

As specified, in determining economic production, constant product benchmark prices are to be based on a 12-month average price, calculated as the unweighted arithmetic average of the first-day-of-the-month price for each month within the 12-month period prior to the effective date of our report unless prices are defined by contractual or other regulatory arrangements. The relevant benchmark prices for Gran Tierra's reserves is Brent Blend Crude Oil FOB North Sea at $97.98 USD/bbl.

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, referred to herein as "differentials." The differentials used in the preparation of this report estimated from received price information provided by Gran Tierra.

The average realized prices for Gran Tierra's reserves in the report are:

---

| | |
|:---|:---|
| Oil (USD/bbl) - Colombia | $86.16 |
| Natural Gas (USD/Mcf) - Colombia | $3.67 |
| Oil (USD/bbl) - Ecuador | $91.53 |

---

In our economic analysis, operating and capital costs are those costs estimated as applicable at the effective date of our report, with no future escalation. Where deemed appropriate, the capital costs and revised operating costs associated with the implementation of committed projects designed to modify specific field operations in the future may be included in economic projections. Capital costs used in this report were provided by Gran Tierra and actual costs from recent activity. Capital costs are included as required for workovers, new development wells, and production equipment. Based on our understanding of future development plans, a review of the records provided to us, and our knowledge of similar properties, we regard these estimated capital costs to be reasonable. Abandonment costs were assigned to the abandonment of wells assigned reserves, including future wells.

Reserves were assigned by volumetric, material balance, decline analysis or analogy where considered appropriate. In many cases, where sufficient data were available, a combination of the methods were applied.

Test data and other related information were used to estimate the anticipated initial production rates for those wells or analogous locations. For reserves not yet on production, forecast sales were estimated to commence at an anticipated date furnished by Gran Tierra. Wells or locations that are not currently producing may start producing earlier or later than anticipated in our estimates due to unforeseen factors causing a change in the timing to initiate production. Such factors may include delays due to weather, the availability of rigs, the sequence of drilling, completing and/or recompleting wells and/or constraints set by regulatory bodies.

The future production rates from wells currently on production or wells or locations that are not currently producing may be more or less than estimated because of changes including, but not limited to, reservoir performance, operating conditions related to surface facilities, compression and artificial lift, pipeline capacity and/or operating conditions, producing market demand and/or allowables or other constraints set by regulatory bodies.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;vi. Our report has been prepared assuming the continuation of existing regulatory and fiscal conditions subject to the guidance in the COGE Handbook and SEC regulations. Notwithstanding that Gran Tierra currently has regulatory approval to produce the reserves identified in our report, there is no assurance that changes in regulation will not occur; such changes, which cannot reliably be predicted, could impact Gran Tierra's ability to recover the estimated reserves.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;vii. Oil and gas reserves estimates have an inherent degree of associated uncertainty the extent of which is affected by many factors. Reserves estimates will vary due to the limited and imprecise nature of data upon which the estimates of reserves are predicated. Moreover, the methods and data used in estimating reserves are often necessarily indirect

------

or analogical in character rather than direct or deductive. Furthermore, the persons involved in the preparation of reserves estimates and associated information are required, in applying geosciences, petroleum engineering and evaluation principles, to make numerous unbiased judgments based upon their educational background, professional training, and professional experience. The extent and significance of the judgments to be made are, in themselves, sufficient to render reserves estimates inherently imprecise. Reserves estimates may change substantially as additional data becomes available and as economic conditions impacting oil and gas prices and costs change. Reserves estimates will also change over time due to other factors such as knowledge and technology, fiscal and economic conditions, contractual, statutory and regulatory provisions.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;viii.In our opinion, the reserves information evaluated by us have, in all material respects, been determined in accordance with all appropriate data, assumptions, methods and procedures applicable for the filing of reserves information under U.S. SEC Regulation S-K. All methods and procedures we considered necessary under the circumstances to prepare the report were used.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;ix.A summary of Gran Tierra's reserves evaluated by us is provided in item iii.

McDaniel is a private firm established in 1955 whose business is the provision of independent geological and engineering services to the petroleum industry. McDaniel is among the largest evaluation firms in North America with over 60 professional and technical support personnel. Mr. Boulton coordinated the evaluation and is a qualified, independent reserves evaluator as defined in COGE Handbook, and a registered Practicing Professional Engineer in the Province of Alberta. Mr. Boulton has over 10 years of experience in the evaluation of oil and gas reserves and resources and has been employed at McDaniel as an evaluator/auditor since 2006.

McDaniel & Associates Consultants Ltd.

2000, Eighth Avenue Place, East Tower,

525 – 8 Avenue SW,

Calgary, Alberta, Canada T2P 1G1

Dated: February 21, 2023

---

| |
|:---|
| /s/ Cam Boulton |
| Cam Boulton |
| Executive Vice President |

---

<br>