Gran Tierra Energy Inc. Reports Second Quarter 2026 Results

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Dawson Clearwater Prospective Resources

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The Dawson Clearwater reservoir comprises Lower Cretaceous Clearwater Formation sandstones deposited within a really extensive marine offshore wave-dominated deltaic/shoreface environments. The succession is characterized by a series of cleaning-upward sand lobes. High quality reservoir sandstones are identified from core calibrated petrophysical logs that show average porosities of 25-30% and permeability range of 50 to 300 mD. This reservoir has high quality oil at 12° to 15° API.

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In the Dawson area, three wells have produced commercially from the Clearwater Formation. There are numerous commercial developments across northern Alberta with analogous geology to the Clearwater at Dawson.

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Significant positive factors for Clearwater Prospective Resources include:

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  • Shallow, high quality heavy-oil reservoirs in sandstone bodies
  • Production established from two pads and two zones within Dawson
  • Development technologies and strategies from similar analog fields can be applied to this play
  • Virgin reservoir pressure

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Negative factors for Clearwater Prospective Resources include:

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  • High rock quality heterogeneity and potential for variable oil viscosity
  • Remote location with limited infrastructure
  • Limited well control and 3D seismic in area
  • The play is in the early part of the exploration cycle

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Chance of Discovery / Development

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Through an evaluation of the risks that are relevant to the Clearwater prospective resources, which are described herein, McDaniel has determined that the chance of discovery in both Clearwater G1 and E1 is 90%, with the chance of development at 50% for the Clearwater G1 and 60% for the Clearwater E1.

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Mount Head Prospective Resources

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The Mississippian has been a target for oil exploration in South-West Alberta since the 1940s, with significant discoveries such as the Shell Waterton and Turner Valley fields. The Mount Head formation, within the Mississippian Visean stage, was deposited in a broad, shallow-water shelf environment, characterized by thin bedded dolo-wackestones and packstones to dolo-mudstones in event bed flooding zones.

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Core calibrated petrophysical analysis shows average porosities of 6% to 8% with permeabilities from 4mD to 10mD in stacked flow units associated with depositional cycles. Historical production tests from the Mount Head formation produce light, sweet crude over 40° API.

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The primary trapping mechanism of the Mount Head play in this area of South-West Alberta is an erosional subcrop unconformity, creating a stratigraphic-structural trap at the Foothills-Plains transition. The Jurassic Rierdon and Sawtooth shales provide a robust top seal, while NE-SW oriented erosional features provide lateral truncations for the subcrop trap.

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Significant positive factors for Mount Head Prospective Resources include:

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  • Proven productive dolostone facies within the play fairway
  • All-weather access locations
  • 3D seismic covering a majority of the trap
  • Development technologies and strategies from similar analog fields can be applied to this play
  • Virgin reservoir pressure

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Negative factors for Mount Head Prospective Resources include:

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  • High reservoir heterogeneity and lateral extent of productive facies
  • Limited well control in area
  • The play is in the early stages of the exploration cycle

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Chance of Discovery / Development

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Through an evaluation of the risks that are relevant to the Mount Head prospective resources, which are described herein, McDaniel has determined that the chance of discovery in both Mount Head C and B is 70%, with the chance of development at 60% for the Mount Head C and 50% for the Mount Head B.

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Conference Call Information:

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Gran Tierra will host its second quarter 2026 results conference call on Wednesday, August 5, 2026, at 9:00 a.m. Mountain Time, 11:00 a.m. Eastern Time. Interested parties may access the conference call by registering at the following link: https://register-conf.media-server.com/register/BI848611503f0e48dbb81d7e757fc89270. Please note that there is no longer a general dial-in number to participate and each individual party must register through the provided link. Once parties have registered, they will be provided a unique PIN and call-in details. There is also a feature that allows parties to elect to be called back through the “Call Me” function on the platform. Interested parties can also continue to access the live webcast from their mobile or desktop devices at the following link: https://edge.media-server.com/mmc/p/okmrqhav, which is also available on Gran Tierra’s website at https://www.grantierra.com/investor-relations/presentations-events/.

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2025 Sustainability Report:

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Gran Tierra has published its 2025 Sustainability Report and is available on the Company website at www.grantierra.com/esg.

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About Gran Tierra Energy Inc.

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Gran Tierra Energy Inc., together with its subsidiaries, is an independent international energy company currently focused on oil and natural gas exploration and production in Canada, Colombia and Ecuador. The Company is currently developing its existing portfolio of assets in Canada, Colombia and Ecuador; however, Gran Tierra recently entered into an exploration, development and production sharing agreement with the State Oil Company of the Republic of Azerbaijan (“SOCAR”) and may eventually expand our operations into Azerbaijan and will continue to pursue additional new growth opportunities that would further strengthen the Company’s portfolio. The Company’s common stock trades on the NYSE American, the Toronto Stock Exchange and the London Stock Exchange under the ticker symbol GTE. Additional information concerning Gran Tierra is available at www.grantierra.com. Except to the extent expressly stated otherwise, information on the Company’s website or accessible from our website or any other website is not incorporated by reference into and should not be considered part of this press release. Investor inquiries may be directed to [email protected] or (403) 265-3221.

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Gran Tierra’s Securities and Exchange Commission (the “SEC”) filings are available on the SEC website at http://www.sec.gov. The Company’s Canadian securities regulatory filings are available on SEDAR+ at http://www.sedarplus.ca and UK regulatory filings are available on the National Storage Mechanism website at https://data.fca.org.uk/#/nsm/nationalstoragemechanism.

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Contact Information

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For investor and media inquiries please contact:

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Gary Guidry, President & Chief Executive Officer

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Ryan Ellson, Executive Vice President & Chief Financial Officer

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Tel: (403) 265-3221

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For more information on Gran Tierra please go to: www.grantierra.com.

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Forward Looking Statements and Advisories:

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This press release contains opinions, forecasts, projections, and other statements about future events or results that constitute forward-looking statements within the meaning of the United States Private Securities Litigation Reform Act of 1995, Section 27A of the Securities Act of 1933, as amended, and Section 21E of the Securities Exchange Act of 1934, as amended, and financial outlook and forward looking information within the meaning of applicable Canadian securities laws (collectively, “forward-looking statements”), which can be identified by such terms as “expect”, “plan”, “anticipate”, “target”, “outlook”, “can,” “will,” “should,” “guidance,” “forecast,” “signal,” “measures taken to” and “believes”, derivations thereof and similar terms identify forward-looking statements. Such forward-looking statements include, but are not limited to, the Company’s capital budget amount and uses; the Company’s strategies related to exploration, drilling and operation activities; expectations regarding reservoir prospects and production amounts; future well results (including initial oil and natural gas production rates and productive capacity based on past performance); expected future net cash provided by operating activities (described in this press release as “cash flow”), free cash flow, operating netback, EBITDA and certain associated metrics; anticipated capital expenditures, including the location and impact of capital expenditures; operating and general and administrative costs; production guidance for 2026; and the Company’s expectations as to debt repayment, hedging and its positioning for 2026 and beyond. The forward-looking statements contained in this press release reflect several material factors and expectations and assumptions of Gran Tierra including, without limitation, that Gran Tierra will continue to conduct its operations in a manner consistent with its current expectations, the accuracy of testing and production results and seismic data, pricing and cost estimates (including with respect to commodity pricing and exchange rates), and the general continuance of current or, where applicable, assumed operational, regulatory and industry conditions in Canada, Colombia and Ecuador and areas of potential expansion, and the ability of Gran Tierra to execute its business and operational plans (including any debt repayment plan) in the manner currently planned. Gran Tierra believes the material factors, expectations and assumptions reflected in the forward-looking statements are reasonable at this time, but no assurance can be given that these factors, expectations and assumptions will prove to be correct.

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Among the important factors that could cause actual results to differ materially from those indicated by the forward-looking statements in this press release are: certain of Gran Tierra’s 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 Gran Tierra’s products; other disruptions to local operations; 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, geopolitical events, including the ongoing conflicts in Ukraine, the Middle East and Venezuela, or from the imposition or lifting of crude oil production quotas or other actions that might be imposed by OPEC 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 and natural gas prices and oil and natural gas consumption more than Gran Tierra currently predicts, which could cause Gran Tierra to further modify its 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 Gran Tierra’s products; the ability of Gran Tierra to execute its business plan, which may include acquisitions, and realize expected benefits from current or future 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 Gran Tierra’s 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 Gran Tierra’s common stock or bonds; the risk that Gran Tierra does not receive the anticipated benefits of government programs, including government tax refunds; Gran Tierra’s ability to comply with financial covenants in its credit agreement and indentures and make borrowings under its credit agreement; and the risk factors detailed from time to time in Gran Tierra’s periodic reports filed with the SEC, including, without limitation, under the caption “Risk Factors” in Gran Tierra’s Annual Report on Form 10-K for the year ended December 31, 2025 filed on March 4, 2026 and its other filings with the SEC. These filings are available on the SEC’s website at http://www.sec.gov and on SEDAR+ at www.sedarplus.ca and UK regulatory filings are available on the National Storage Mechanism website at https://data.fca.org.uk/#/nsm/nationalstoragemechanism.

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The forward-looking statements contained in this press release are based on certain assumptions made by Gran Tierra based on management’s experience and other factors believed to be appropriate. Gran Tierra believes these assumptions to be reasonable at this time, but the forward-looking statements are subject to risk and uncertainties, many of which are beyond Gran Tierra’s control, which may cause actual results to differ materially from those implied or expressed by the forward-looking statements. The risk that the assumptions on which the 2026 outlook is based prove incorrect may increase the later the period to which the outlook relates. All forward-looking statements are made as of the date of this press release and the fact that this press release remains available does not constitute a representation by Gran Tierra that Gran Tierra believes these forward-looking statements continue to be true as of any subsequent date. Actual results may vary materially from the expected results expressed in forward-looking statements. Gran Tierra disclaims any intention or obligation to update or revise any forward-looking statements, whether as a result of new information, future events or otherwise, except as expressly required by applicable law. In addition, historical, current and forward-looking sustainability-related statements may be based on standards for measuring progress that are still developing, internal controls and processes that continue to evolve, and assumptions that are subject to change in the future. Gran Tierra’s forward-looking statements are expressly qualified in their entirety by this cautionary statement.

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Non-GAAP Measures

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This press release includes non-GAAP financial measures as further described herein. These non-GAAP measures do not have a standardized meaning under GAAP. Investors are cautioned that these measures should not be construed as alternatives to net income or loss, cash flow from operating activities or other measures of financial performance as determined in accordance with GAAP. Gran Tierra’s method of calculating these measures may differ from other companies and, accordingly, they 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 to not imply that more emphasis should be placed on the non-GAAP measure.

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Net Debt, as presented as at June 30, 2026 is comprised of $560 million (gross) of long-term senior notes outstanding and $46 million (gross) of current senior notes outstanding less cash and cash equivalents of $127 million. These components are drawn from amounts presented in accordance with GAAP in the Company’s condensed consolidated balance sheet. Management believes that net debt is a useful supplemental measure for management and investors in order to evaluate the financial sustainability of the Company’s business and leverage. The most directly comparable GAAP measure is total debt.

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Operating netback, as presented, is defined as gross profit adjusting for depletion and accretion related to producing assets. Operating netback per boe, as presented, is defined as operating netback over WI sales volume. See the table entitled Financial and Operational Highlights above for the components of consolidated operating netback and corresponding reconciliation.

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Cash netback, as presented, is most directly comparable to gross profit and is calculated as gross profit adjusted for depletion and accretion related to producing assets, cash G&A expenses, other taxes, severance expenses, realized foreign exchange gains or losses, cash settlement on derivative instruments, interest expense (excluding amortization of debt issuance costs, non-cash interest, and senior notes exchange fees), interest income, other cash gains or losses, net lease payments, and current income tax expense or recovery. Cash netback per boe, as presented, is defined as cash netback over WI sales volumes. Management believes that operating netback and cash netback are useful supplemental measures for investors to analyze financial performance and provide an indication of the results generated by Gran Tierra’s principal business activities prior to the consideration of other income and expenses. See the table entitled Financial and Operational Highlights above for the components of operating netback and operating netback per boe. A reconciliation from gross profit to cash netback is as follows:

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  Three Months Ended June 30,  Three Months Ended March 31,  Six Months Ended June 30, 
Operating and Cash Netback – Non-GAAP Measure ($000s) 2026   2025   2026   2026   2025 
Gross Profit$75,460  $23,313  $36,697  $112,157  $51,414 
Adjustments to reconcile gross profit to operating netback                   
Depletion and accretion 56,253   65,948   63,908   120,161   134,379 
Operating Netback (non-GAAP) 131,713   89,261   100,605   232,318   185,793 
Cash G&A expenses (13,219)  (14,136)  (15,149)  (28,368)  (26,062)
Other taxes (1,389)  (577)  (1,041)  (2,430)  (1,058)
Severance expenses (95)     (2,468)  (2,563)   
Realized foreign exchange gain (loss) 260   (602)  (1,625)  (1,365)  (2,753)
Cash settlement on derivative instruments (34,032)  1,631   (11,082)  (45,114)  2,074 
Interest expense, excluding amortization of debt issuance costs, non-cash interest, and senior notes exchange fees (15,832)  (20,284)  (21,169)  (37,001)  (39,686)
Interest income 503   251   401   904   676 
Other cash gain 1,625   377   420   2,045   377 
Net lease payments (130)  180   (219)  (349)  349 
Current income tax expense (9,115)  (2,195)  (5,850)  (14,965)  (10,460)
Cash Netback (non-GAAP)$60,289  $53,906  $42,823  $103,112  $109,250 

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EBITDA, as presented, is defined as net income or loss adjusted for DD&A expenses, interest expense, and income tax expense or recovery. Adjusted EBITDA, as presented, is defined as EBITDA adjusted for asset impairment, severance expenses, non-cash lease expense, lease payments, foreign exchange gains or losses, stock-based compensation expense or recovery, unrealized derivative instruments gains or losses, and other non-cash gains or losses. 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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  Three Months Ended June 30,  Three Months Ended March 31,
  Six Months Ended June 30,  Twelve Month Trailing June 30,
EBITDA – Non-GAAP Measure ($000s) 2026   2025   2026   2026   2025   2026 
Net Income (Loss)$24,861  $(12,741) $(119,172) $(94,311) $(32,021) $(255,409)
Adjustments to reconcile net income (loss) to EBITDA and Adjusted EBITDA                       
DD&A expenses 62,334   68,635   69,874   132,208   140,837   269,724 
Interest expense 24,473   24,366   49,878   74,351   47,601   128,059 
Income tax expense 20,488   4,648   (26,595)  (6,107)  8,201   (54,061)
EBITDA (non-GAAP)$132,156  $84,908  $(26,015) $106,141  $164,618  $88,313 
Asset Impairment                136,261 
Severance expenses 95      2,468   2,563      2,563 
Non-cash lease expense 1,503   1,725   1,468   2,971   3,461   5,331 
Lease payments (1,633)  (1,545)  (1,687)  (3,320)  (3,112)  (6,181)
Foreign exchange loss 2,603   3,716   1,425   4,028   7,554   5,208 
Stock-based compensation (recovery) expense (3,757)  546   19,676   15,919   29   19,104 
Unrealized derivative instruments (gain) loss (45,896)  (12,401)  77,328   31,432   (10,491)  33,290 
Other non-cash loss (gain)    38   (728)  (728)  90   (3,376)
Adjusted EBITDA (non-GAAP)$85,071  $76,987  $73,935  $159,006  $162,149  $280,513 

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Funds flow from operations, as presented, is defined as net income or loss adjusted for DD&A expenses, deferred tax expense or recovery, stock-based compensation expense or recovery, amortization of debt issuance costs, Senior Notes exchange fees, non-cash interest, non-cash lease expense, lease payments, unrealized foreign exchange gains or losses, unrealized derivative 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 from operations adjusted for 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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  Three Months Ended June 30,  Three Months Ended March 31,
  Six Months Ended June 30, 
Funds Flow From Operations – Non-GAAP Measure ($000s) 2026   2025   2026   2026   2025 
Net Income (Loss)$24,861  $(12,741) $(119,172) $(94,311) $(32,021)
Adjustments to reconcile net income (loss) to funds flow from operations                   
DD&A expenses 62,334   68,635   69,874   132,208   140,837 
Deferred tax expense (recovery) 11,373   2,453   (32,445)  (21,072)  (2,259)
Stock-based compensation (recovery) expense (3,757)  546   19,676   15,919   29 
Amortization of debt issuance costs 1,722   4,082   11,293   13,015   7,915 
Senior Notes exchange fees 785      12,903   13,688    
Non-cash interest 6,134      4,513   10,647    
Non-cash lease expense 1,503   1,725   1,468   2,971   3,461 
Lease payments (1,633)  (1,545)  (1,687)  (3,320)  (3,112)
Unrealized foreign exchange loss (gain) 2,863   3,114   (200)  2,663   4,801 
Other non-cash loss (gain)    38   (728)  (728)  90 
Unrealized derivative instrument (gain) loss (45,896)  (12,401)  77,328   31,432   (10,491)
Funds Flow From Operations (non-GAAP)$60,289  $53,906  $42,823  $103,112  $109,250 
Capital expenditures$54,309  $51,170  $45,359  $99,668  $145,897 
Free Cash Flow (non-GAAP)$5,980  $2,736  $(2,536) $3,444  $(36,647)

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Presentation of Oil and Gas Information

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Boes have been converted on the basis of six thousand cubic feet (“Mcf”) natural gas to 1 boe of oil. Boes may be misleading, particularly if used in isolation. A boe conversion ratio of 6 Mcf: 1 boe is based on an energy equivalency conversion method primarily applicable at the burner tip and does not represent a value equivalency at the wellhead. In addition, given that the value ratio based on the current price of oil as compared with natural gas is significantly different from the energy equivalent of six to one, utilizing a boe conversion ratio of 6 Mcf: 1 boe would be misleading as an indication of value.

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The estimates of the Company’s contingent and prospective resources provided herein are estimates only and there is no guarantee that the estimated contingent and prospective resources will be recovered. Actual resources may be greater than or less than the estimates provided herein and variances could be material. Estimates of contingent and prospective resources are by their nature more speculative than estimates of proved reserves and would require substantial capital spending over a significant number of years to implement recovery. Actual locations drilled and quantities that may be ultimately recovered from the properties will differ substantially. In addition, the Company has made no commitment to drill, and likely will not drill, all of the drilling locations that have been attributable to these quantities.

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References to a formation where evidence of hydrocarbons has been encountered is not necessarily an indicator that hydrocarbons will be recoverable in commercial quantities or in any estimated volume. Gran Tierra’s reported production is a mix of crude oil, conventional natural gas, shale gas and natural gas liquids for which there is no precise breakdown since the Company’s sales volumes typically represent blends of more than one product type. Well test results should be considered as preliminary and not necessarily indicative of long-term performance or of ultimate recovery. Well log interpretations indicating oil and gas accumulations are not necessarily indicative of future production or ultimate recovery. If it is indicated that a pressure transient analysis or well-test interpretation has not been carried out, any data disclosed in that respect should be considered preliminary until such analysis has been completed.

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This press release contains certain oil and gas metrics, including operating netback, cash netback and gross profit per boe, which do not have standardized meanings or standard methods of calculation and therefore such measures may not be comparable to similar measures used by other companies and should not be used to make comparisons. These metrics are calculated as described in this press release and management believes that they are useful supplemental measures for the reasons described in this press release.

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Such metrics have been included herein to provide readers with additional measures to evaluate the Company’s performance; however, such measures are not reliable indicators of the future performance of the Company and future performance may not compare to the performance in previous periods.

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Contingent Resources

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Contingent resources are those quantities of petroleum estimated, as of a given date, to be potentially recoverable from known accumulations using established technology or technology under development, but which are not currently considered to be commercially recoverable due to one or more contingencies. Contingent resources should not be construed as reserves. Contingent resources may include, for example, projects for which there are currently no viable markets, or where commercial recovery is dependent on technology under development, or where evaluation of the accumulation is insufficient to clearly assess commerciality.

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Under the COGEH, a range of contingent resources estimates (low, best and high) are recommended. The following classification of contingent resources is used as presented by McDaniel: (a) Low estimate (1C) means there is at least a 90 percent probability (P90) that the quantities actually recovered will equal or exceed the low estimate; (b) Best estimate (2C) means there is at least a 50 percent probability (P50) that the quantities actually recovered will equal or exceed the best estimate; and (c) High estimate (3C) means there is at least a 10 percent probability (P10) that the quantities actually recovered will equal or exceed the high estimate.

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The chance of development is defined as the estimated probability that, once discovered, a known accumulation will be commercially developed. Quantifying the chance of development requires consideration of both economic contingencies and other contingencies, such as legal, regulatory, market access, political, social license, internal and external approvals and commitment to project finance and development timing. As many of these factors are extremely difficult to quantify, the chance of development is uncertain and must be used with caution. The contingent resources disclosed herein have an economic status that is undetermined and are sub-classified in terms of maturity as development on hold, meaning there is a reasonable chance of development but there are major non-technical contingencies to be resolved that are usually beyond the control of the operator.

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Company gross contingent resources are based on the working interest share of the property gross resources. There is no certainty that it will be commercially viable to produce any portion of the contingent resources. For additional information regarding the Company’s contingent resources, including the significant positive and negative factors relevant to the estimate and a description of the applicable projects, see Disclosure of Contingent Resources and Prospective Resources Data – Contingent Resources: Canada.

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Prospective Resources

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Prospective resources are those quantities of petroleum estimated, as of a given date, to be potentially recoverable from undiscovered accumulations by application of future development projects. Prospective resources should not be construed as reserves or contingent resources. Prospective resources have both an associated chance of discovery and a chance of development.

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Under the COGEH, a range of prospective resources estimates (low, best and high) are recommended. The following classification of prospective resources is used as presented by McDaniel: (a) Low estimate means there is at least a 90 percent probability (P90) that the quantities actually recovered will equal or exceed the low estimate; (b) Best estimate means there is at least a 50 percent probability (P50) that the quantities actually recovered will equal or exceed the median best estimate; (c) High estimate means there is at least a 10 percent probability (P10) that the quantities actually recovered will equal or exceed the high estimate; and (d) Mean estimate represents the arithmetic average of the expected recoverable volume and is the most accurate single point representation of the volume distribution.

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Chance of discovery, as defined in the COGEH, is the estimated probability that exploration activities will confirm the existence of a significant accumulation of potentially recoverable petroleum. Chance of development is defined as the estimated probability that, once discovered, a known accumulation will be commercially developed. Quantifying the chance of development requires consideration of both economic contingencies and other contingencies, such as legal, regulatory, market access, political, social license, internal and external approvals and commitment to project finance and development timing. As many of these factors are extremely difficult to quantify, the chance of development is uncertain and must be used with caution. The chance of commerciality is defined as the product of the chance of discovery and the chance of development. The risked mean prospective resource volumes have been determined by multiplying the unrisked mean volumes by the associated chance of commerciality. The arithmetic sum of the individual risked mean values can be considered the best estimate risked prospective resources for the portfolio as per COGEH Volume 2 Section 2.8.2.

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There is no certainty that any portion of the prospective resources will be discovered. If discovered, there is no certainty that it will be commercially viable to produce any portion of the prospective resources. The unrisked total is not representative of the portfolio unrisked total and is provided to give an indication of the resources range, assuming all prospects are successful. Company gross prospective resources are based on the working interest share of the property gross resources. The net present value of future net revenue of the prospective resource estimates has not been prepared and, therefore, the net prospective resources volumes are not reported.

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Given the uncertainty of discovery associated with the prospective resources, costs and timelines to production, as well as recovery technologies, cannot be determined at this time. For additional information regarding the Company’s prospective resources, including the significant positive and negative factors relevant to the estimate, chance of discovery and chance of development, and a description of the applicable projects and related information, see Disclosure of Contingent Resources and Prospective Resources Data – Prospective Resources: Canada.

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Risk Factors and Uncertainties in Estimating Quantities of Resources

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There are numerous uncertainties inherent in estimating quantities of resources. The resources information for the contingent and prospective resources set forth herein are estimates only.

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In general, estimates of resources are based upon a number of variable factors and assumptions, such as historical production from the properties, production rates, ultimate resource recovery, the timing and amount of capital expenditures, marketability of oil, NGLs and natural gas, royalty rates, the assumed effects of regulation by governmental agencies and future operating costs, all of which may vary materially from actual results. For these reasons, estimates of the resources attributable to any particular group of properties, the classification of such resources based on risk of recovery and estimates of future net revenue associated with resources prepared by different engineers, or by the same engineer at different times, may vary. Gran Tierra’s actual production, revenue, taxes and development and operating expenditures with respect to its resources will vary from estimates thereof and such variations could be material.

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The estimates of Gran Tierra’s resources provided herein are estimates only and there is no guarantee that the estimated resources will be recovered. Actual resources may be greater than or less than the estimates provided herein and variances could be material. With respect to the discovered resources (including contingent resources), there is uncertainty that it will be commercially viable to produce any portion of the resources. With respect to the undiscovered resources (including prospective resources), there is no certainty that any portion of the resources will be discovered. If discovered, there is no certainty that it will be commercially viable to produce any portion of the resources.

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There are numerous factors and uncertainties that affect the anticipated development of the Company’s resources.

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The chances of development for the estimated resources are subject to a number of factors, including overall project economics, the employed recovery technology or technology under development, regulatory and environmental approval, the availability of markets and production facilities and political risk to the development. The Company will be required to make substantial capital expenditures in order to prove, exploit, develop and produce oil, natural gas and NGLs from its resource properties in the future. If the Company’s cash flow from operations is not sufficient to satisfy its capital expenditure requirements, there can be no assurance that additional debt or equity financing will be available to meet these requirements or, if available, that the terms will be acceptable to the Company. Failure to obtain such financing on a timely basis could cause the Company to forfeit its interest in certain properties, miss certain opportunities, reduce its pace of development or terminate its operations on such properties. An inability of the Company to access sufficient capital for its exploration and development purposes could have a material adverse effect on the Company’s ability to execute its business strategy to develop its prospects.

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The significant economic factors that affect the Company’s future development of its resources are:

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  • future commodity prices for oil and natural gas (and the Company’s outlook relating to such prices);
  • the future capital costs of drilling, completing, tying in and equipping the wells necessary to develop such lands at the relevant times;
  • the future costs of operating wells at the relevant times; and
  • the levels of royalties applicable to productions from such lands.

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The significant uncertainties that affect the Company’s development of its resources are:

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  • the ability of the Company to obtain the capital necessary to fund the development of such lands at the relevant times;
  • the future drilling and completion results the Company achieves in its development activities (e.g. with respect to the development of particular intervals or geographic areas, the uncertainty would be whether the initial drilling and completion results are sufficient to justify the development of such interval or geographic area);
  • drilling and completion results achieved by others on lands in proximity to the Company’s lands;
  • transportation and processing infrastructure becoming available in a timeline consistent with proposed development plans;
  • the availability of regulatory approvals for development of the lands and the necessary infrastructure; and
  • governmental actions and future changes to applicable regulatory or royalty regimes that affect timing or economics of proposed development activities.

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Disclosures of Resources Information and Cautionary Note to U.S. Investors

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All estimates of contingent resources disclosed in this press release have been prepared by McDaniel in accordance with NI 51-101 and the COGEH and are derived from the GTE McDaniel Resources Report. Contingent resources are those quantities of petroleum estimated, as of a given date, to be potentially recoverable from known accumulations, but which are not currently considered to be commercially recoverable due to one or more contingencies. There is no certainty that it will be commercially viable to produce any portion of the contingent resources. Investors should not view the disclosure of contingent resources in this press release as an estimate of reserves prepared in accordance with SEC requirements.

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All estimates of prospective resources disclosed in this press release have been prepared by McDaniel in accordance with NI 51-101 and the COGEH and are derived from the GTE McDaniel Prospective Resources Report. Prospective resources are those quantities of petroleum estimated, as of a given date, to be potentially recoverable from undiscovered accumulations by application of future development projects and are subject to both a chance of discovery and a chance of development. There is no certainty that any portion of the prospective resources disclosed herein will be discovered or, if discovered, will be commercially viable or developed. The U.S. Securities and Exchange Commission (the “SEC”) permits oil and gas companies that are subject to domestic issuer reporting requirements under U.S. federal securities law, in their filings with the SEC, to disclose only estimated proved, probable and possible reserves that meet the SEC’s definitions of such terms. Investors should not view the disclosure of prospective resources in this press release as an estimate of reserves prepared in accordance with SEC requirements.

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