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<!-- Generated by CompSci Transform (tm) - http://www.compsciresources.com -->    
<!-- Created: Fri Mar 13 03:51:59 UTC 2026 -->  
<linkbase xmlns="http://www.xbrl.org/2003/linkbase" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.xbrl.org/2003/linkbase http://www.xbrl.org/2003/xbrl-linkbase-2003-12-31.xsd">    
  <roleRef xlink:type="simple" xlink:href="http://www.xbrl.org/lrr/role/net-2009-12-16.xsd#netLabel" roleURI="http://www.xbrl.org/2009/role/netLabel"/>  
  <roleRef xlink:type="simple" xlink:href="http://www.xbrl.org/lrr/role/negated-2009-12-16.xsd#negatedTotalLabel" roleURI="http://www.xbrl.org/2009/role/negatedTotalLabel"/>    
  <roleRef xlink:type="simple" xlink:href="http://www.xbrl.org/lrr/role/negated-2009-12-16.xsd#negatedLabel" roleURI="http://www.xbrl.org/2009/role/negatedLabel"/>    
  <labelLink xlink:role="http://www.xbrl.org/2003/role/link" xlink:type="extended">    
    <loc xlink:type="locator" xlink:label="dei_EntityAddressesAddressTypeAxis" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_EntityAddressesAddressTypeAxis"/>  
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="dei_EntityAddressesAddressTypeAxis_lbl" xml:lang="en-US">Entity Addresses, Address Type [Axis]</label>   
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="dei_EntityAddressesAddressTypeAxis" xlink:to="dei_EntityAddressesAddressTypeAxis_lbl"/>    
    <loc xlink:type="locator" xlink:label="ifrs-full_NoncurrentAssets" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_NoncurrentAssets"/>    
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="ifrs-full_NoncurrentAssets_lbl" xml:lang="en-US">Total non-current assets</label>  
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_NoncurrentAssets" xlink:to="ifrs-full_NoncurrentAssets_lbl"/>   
    <loc xlink:type="locator" xlink:label="ifrs-full_Assets" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_Assets"/>    
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="ifrs-full_Assets_lbl" xml:lang="en-US">Total assets</label>     
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_Assets" xlink:to="ifrs-full_Assets_lbl"/>   
    <loc xlink:type="locator" xlink:label="ifrs-full_CurrentLiabilities" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_CurrentLiabilities"/>   
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="ifrs-full_CurrentLiabilities_lbl" xml:lang="en-US">Total current liabilities</label>     
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_CurrentLiabilities" xlink:to="ifrs-full_CurrentLiabilities_lbl"/>  
    <loc xlink:type="locator" xlink:label="ifrs-full_NoncurrentLiabilities" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_NoncurrentLiabilities"/>    
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="ifrs-full_NoncurrentLiabilities_lbl" xml:lang="en-US">Total non-current liabilities</label>  
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_NoncurrentLiabilities" xlink:to="ifrs-full_NoncurrentLiabilities_lbl"/>   
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_NoncurrentLiabilities_lbl0" xml:lang="en-US">Long-term debt</label>   
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_NoncurrentLiabilities" xlink:to="ifrs-full_NoncurrentLiabilities_lbl0"/>    
    <loc xlink:type="locator" xlink:label="ifrs-full_Liabilities" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_Liabilities"/>    
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="ifrs-full_Liabilities_lbl" xml:lang="en-US">Total liabilities</label>     
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_Liabilities" xlink:to="ifrs-full_Liabilities_lbl"/>   
    <loc xlink:type="locator" xlink:label="ifrs-full_Equity" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_Equity"/>    
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="ifrs-full_Equity_lbl" xml:lang="en-US">Total shareholders&apos; equity</label>    
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_Equity" xlink:to="ifrs-full_Equity_lbl"/>   
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/periodStartLabel" xlink:label="ifrs-full_Equity_lbl0" xml:lang="en-US">Balance</label>  
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_Equity" xlink:to="ifrs-full_Equity_lbl0"/>    
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/periodEndLabel" xlink:label="ifrs-full_Equity_lbl1" xml:lang="en-US">Balance</label>     
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_Equity" xlink:to="ifrs-full_Equity_lbl1"/>    
    <loc xlink:type="locator" xlink:label="ifrs-full_EquityAndLiabilities" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_EquityAndLiabilities"/>  
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="ifrs-full_EquityAndLiabilities_lbl" xml:lang="en-US">Total liabilities and shareholders&apos; equity</label>    
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_EquityAndLiabilities" xlink:to="ifrs-full_EquityAndLiabilities_lbl"/> 
    <loc xlink:type="locator" xlink:label="ifrs-full_ProductsAndServicesAxis" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_ProductsAndServicesAxis"/>   
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_ProductsAndServicesAxis_lbl" xml:lang="en-US">Products and services [axis]</label>   
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_ProductsAndServicesAxis" xlink:to="ifrs-full_ProductsAndServicesAxis_lbl"/>  
    <loc xlink:type="locator" xlink:label="ifrs-full_GrossProfit" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_GrossProfit"/>    
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="ifrs-full_GrossProfit_lbl" xml:lang="en-US">Gross profit</label>     
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_GrossProfit" xlink:to="ifrs-full_GrossProfit_lbl"/>   
    <loc xlink:type="locator" xlink:label="ifrs-full_OperatingExpense" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_OperatingExpense"/>    
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="ifrs-full_OperatingExpense_lbl" xml:lang="en-US">Total expenses</label>  
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_OperatingExpense" xlink:to="ifrs-full_OperatingExpense_lbl"/>   
    <loc xlink:type="locator" xlink:label="ifrs-full_ProfitLossBeforeTax" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_ProfitLossBeforeTax"/>     
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="ifrs-full_ProfitLossBeforeTax_lbl" xml:lang="en-US">Net income before taxes</label>    
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_ProfitLossBeforeTax" xlink:to="ifrs-full_ProfitLossBeforeTax_lbl"/>    
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_ProfitLossBeforeTax_lbl0" xml:lang="en-US">Income before taxes</label> 
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_ProfitLossBeforeTax" xlink:to="ifrs-full_ProfitLossBeforeTax_lbl0"/>     
    <loc xlink:type="locator" xlink:label="ifrs-full_ProfitLoss" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_ProfitLoss"/>  
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="ifrs-full_ProfitLoss_lbl" xml:lang="en-US">Net income and comprehensive income</label>  
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_ProfitLoss" xlink:to="ifrs-full_ProfitLoss_lbl"/> 
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_ProfitLoss_lbl0" xml:lang="en-US">Net income and comprehensive income</label>   
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_ProfitLoss" xlink:to="ifrs-full_ProfitLoss_lbl0"/>  
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ifrs-full_ProfitLoss_lbl1" xml:lang="en-US">Net income</label>     
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_ProfitLoss" xlink:to="ifrs-full_ProfitLoss_lbl1"/>  
    <loc xlink:type="locator" xlink:label="ifrs-full_ComponentsOfEquityAxis" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_ComponentsOfEquityAxis"/> 
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_ComponentsOfEquityAxis_lbl" xml:lang="en-US">Components of equity [axis]</label> 
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_ComponentsOfEquityAxis" xlink:to="ifrs-full_ComponentsOfEquityAxis_lbl"/>     
    <loc xlink:type="locator" xlink:label="ifrs-full_CashFlowsFromUsedInOperatingActivities" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_CashFlowsFromUsedInOperatingActivities"/>   
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="ifrs-full_CashFlowsFromUsedInOperatingActivities_lbl" xml:lang="en-US">Cash provided by operating activities</label>  
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_CashFlowsFromUsedInOperatingActivities" xlink:to="ifrs-full_CashFlowsFromUsedInOperatingActivities_lbl"/>  
    <loc xlink:type="locator" xlink:label="ifrs-full_CashFlowsFromUsedInFinancingActivities" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_CashFlowsFromUsedInFinancingActivities"/>   
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="ifrs-full_CashFlowsFromUsedInFinancingActivities_lbl" xml:lang="en-US">Cash used in financing activities</label>   
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_CashFlowsFromUsedInFinancingActivities" xlink:to="ifrs-full_CashFlowsFromUsedInFinancingActivities_lbl"/>  
    <loc xlink:type="locator" xlink:label="ifrs-full_CashFlowsFromUsedInInvestingActivities" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_CashFlowsFromUsedInInvestingActivities"/>   
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="ifrs-full_CashFlowsFromUsedInInvestingActivities_lbl" xml:lang="en-US">Cash used in investing activities</label>   
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_CashFlowsFromUsedInInvestingActivities" xlink:to="ifrs-full_CashFlowsFromUsedInInvestingActivities_lbl"/>  
    <loc xlink:type="locator" xlink:label="ifrs-full_IncreaseDecreaseInCashAndCashEquivalents" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_IncreaseDecreaseInCashAndCashEquivalents"/>  
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="ifrs-full_IncreaseDecreaseInCashAndCashEquivalents_lbl" xml:lang="en-US">Change in cash and cash equivalents</label>  
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_IncreaseDecreaseInCashAndCashEquivalents" xlink:to="ifrs-full_IncreaseDecreaseInCashAndCashEquivalents_lbl"/> 
    <loc xlink:type="locator" xlink:label="ifrs-full_CashAndCashEquivalents" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_CashAndCashEquivalents"/> 
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/periodStartLabel" xlink:label="ifrs-full_CashAndCashEquivalents_lbl" xml:lang="en-US">Cash and cash equivalents, beginning of year</label>    
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_CashAndCashEquivalents" xlink:to="ifrs-full_CashAndCashEquivalents_lbl"/>     
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/periodEndLabel" xlink:label="ifrs-full_CashAndCashEquivalents_lbl0" xml:lang="en-US">Cash and cash equivalents, end of year</label>  
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_CashAndCashEquivalents" xlink:to="ifrs-full_CashAndCashEquivalents_lbl0"/> 
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_CashAndCashEquivalents_lbl1" xml:lang="en-US">Cash and cash equivalents</label>     
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_CashAndCashEquivalents" xlink:to="ifrs-full_CashAndCashEquivalents_lbl1"/> 
    <loc xlink:type="locator" xlink:label="ifrs-full_CorporateInformationAndStatementOfIFRSComplianceAbstract" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_CorporateInformationAndStatementOfIFRSComplianceAbstract"/>    
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_CorporateInformationAndStatementOfIFRSComplianceAbstract_lbl" xml:lang="en-US">Corporate Information [Abstract]</label>     
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_CorporateInformationAndStatementOfIFRSComplianceAbstract" xlink:to="ifrs-full_CorporateInformationAndStatementOfIFRSComplianceAbstract_lbl"/>   
    <loc xlink:type="locator" xlink:label="ifrs-full_DisclosureOfReclassificationsOrChangesInPresentationAbstract" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DisclosureOfReclassificationsOrChangesInPresentationAbstract"/>  
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_DisclosureOfReclassificationsOrChangesInPresentationAbstract_lbl" xml:lang="en-US">Basis of Presentation and Statement of Compliance [Abstract]</label>  
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_DisclosureOfReclassificationsOrChangesInPresentationAbstract" xlink:to="ifrs-full_DisclosureOfReclassificationsOrChangesInPresentationAbstract_lbl"/> 
    <loc xlink:type="locator" xlink:label="ifrs-full_DisclosureOfChangesInAccountingEstimatesAbstract" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DisclosureOfChangesInAccountingEstimatesAbstract"/>   
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_DisclosureOfChangesInAccountingEstimatesAbstract_lbl" xml:lang="en-US">Material Accounting Policies [Abstract]</label>    
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_DisclosureOfChangesInAccountingEstimatesAbstract" xlink:to="ifrs-full_DisclosureOfChangesInAccountingEstimatesAbstract_lbl"/>  
    <loc xlink:type="locator" xlink:label="ifrs-full_ClassesOfAssetsAxis" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_ClassesOfAssetsAxis"/>     
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_ClassesOfAssetsAxis_lbl" xml:lang="en-US">Classes of assets [axis]</label>     
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_ClassesOfAssetsAxis" xlink:to="ifrs-full_ClassesOfAssetsAxis_lbl"/>    
    <loc xlink:type="locator" xlink:label="ifrs-full_ClassesOfInventoriesAbstract" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_ClassesOfInventoriesAbstract"/>   
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_ClassesOfInventoriesAbstract_lbl" xml:lang="en-US">Inventories [Abstract]</label>  
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_ClassesOfInventoriesAbstract" xlink:to="ifrs-full_ClassesOfInventoriesAbstract_lbl"/>  
    <loc xlink:type="locator" xlink:label="ifrs-full_Inventories" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_Inventories"/>    
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="ifrs-full_Inventories_lbl" xml:lang="en-US">Inventories</label>    
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_Inventories" xlink:to="ifrs-full_Inventories_lbl"/>   
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_Inventories_lbl0" xml:lang="en-US">Inventories</label>     
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_Inventories" xlink:to="ifrs-full_Inventories_lbl0"/>    
    <loc xlink:type="locator" xlink:label="ifrs-full_PropertyPlantAndEquipmentAbstract" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_PropertyPlantAndEquipmentAbstract"/>   
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_PropertyPlantAndEquipmentAbstract_lbl" xml:lang="en-US">Property, Plant and Equipment (&#8220;PP&amp;E&#8221;) [Abstract]</label>     
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_PropertyPlantAndEquipmentAbstract" xlink:to="ifrs-full_PropertyPlantAndEquipmentAbstract_lbl"/>  
    <loc xlink:type="locator" xlink:label="ifrs-full_CarryingAmountAccumulatedDepreciationAmortisationAndImpairmentAndGrossCarryingAmountAxis" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_CarryingAmountAccumulatedDepreciationAmortisationAndImpairmentAndGrossCarryingAmountAxis"/>   
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_CarryingAmountAccumulatedDepreciationAmortisationAndImpairmentAndGrossCarryingAmountAxis_lbl" xml:lang="en-US">Carrying amount, accumulated depreciation, amortisation and impairment and gross carrying amount [axis]</label>   
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_CarryingAmountAccumulatedDepreciationAmortisationAndImpairmentAndGrossCarryingAmountAxis" xlink:to="ifrs-full_CarryingAmountAccumulatedDepreciationAmortisationAndImpairmentAndGrossCarryingAmountAxis_lbl"/>  
    <loc xlink:type="locator" xlink:label="ifrs-full_PropertyPlantAndEquipment" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_PropertyPlantAndEquipment"/>  
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/periodStartLabel" xlink:label="ifrs-full_PropertyPlantAndEquipment_lbl" xml:lang="en-US">Beginning balance</label>     
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_PropertyPlantAndEquipment" xlink:to="ifrs-full_PropertyPlantAndEquipment_lbl"/> 
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/periodEndLabel" xlink:label="ifrs-full_PropertyPlantAndEquipment_lbl0" xml:lang="en-US">Ending balance</label> 
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_PropertyPlantAndEquipment" xlink:to="ifrs-full_PropertyPlantAndEquipment_lbl0"/>  
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_PropertyPlantAndEquipment_lbl1" xml:lang="en-US">Property, plant and equipment</label>  
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_PropertyPlantAndEquipment" xlink:to="ifrs-full_PropertyPlantAndEquipment_lbl1"/>  
    <loc xlink:type="locator" xlink:label="gfr_AccumulatedDepletionDepreciationandAmortizationBalance" xlink:href="gfr-20251231.xsd#gfr_AccumulatedDepletionDepreciationandAmortizationBalance"/>    
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/periodStartLabel" xlink:label="gfr_AccumulatedDepletionDepreciationandAmortizationBalance_lbl" xml:lang="en-US">Accumulated DD&amp;A, beginning balance</label>     
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_AccumulatedDepletionDepreciationandAmortizationBalance" xlink:to="gfr_AccumulatedDepletionDepreciationandAmortizationBalance_lbl"/>  
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/periodEndLabel" xlink:label="gfr_AccumulatedDepletionDepreciationandAmortizationBalance_lbl0" xml:lang="en-US">Accumulated DD&amp;A, ending balance</label> 
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_AccumulatedDepletionDepreciationandAmortizationBalance" xlink:to="gfr_AccumulatedDepletionDepreciationandAmortizationBalance_lbl0"/>   
    <loc xlink:type="locator" xlink:label="ifrs-full_ClassesOfPropertyPlantAndEquipmentAxis" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_ClassesOfPropertyPlantAndEquipmentAxis"/>   
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_ClassesOfPropertyPlantAndEquipmentAxis_lbl" xml:lang="en-US">Classes of property, plant and equipment [axis]</label>  
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_ClassesOfPropertyPlantAndEquipmentAxis" xlink:to="ifrs-full_ClassesOfPropertyPlantAndEquipmentAxis_lbl"/>  
    <loc xlink:type="locator" xlink:label="ifrs-full_MajorComponentsOfTaxExpenseIncomeAbstract" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_MajorComponentsOfTaxExpenseIncomeAbstract"/>    
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_MajorComponentsOfTaxExpenseIncomeAbstract_lbl" xml:lang="en-US">Income Taxes [Abstract]</label> 
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_MajorComponentsOfTaxExpenseIncomeAbstract" xlink:to="ifrs-full_MajorComponentsOfTaxExpenseIncomeAbstract_lbl"/>   
    <loc xlink:type="locator" xlink:label="ifrs-full_DeferredTaxExpenseIncomeAbstract" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DeferredTaxExpenseIncomeAbstract"/> 
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_DeferredTaxExpenseIncomeAbstract_lbl" xml:lang="en-US">Schedule of Income Tax Expense [Abstract]</label>     
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_DeferredTaxExpenseIncomeAbstract" xlink:to="ifrs-full_DeferredTaxExpenseIncomeAbstract_lbl"/>     
    <loc xlink:type="locator" xlink:label="ifrs-full_DeferredTaxExpenseIncome" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DeferredTaxExpenseIncome"/>     
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="ifrs-full_DeferredTaxExpenseIncome_lbl" xml:lang="en-US">Deferred income tax expense (recovery)</label>    
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_DeferredTaxExpenseIncome" xlink:to="ifrs-full_DeferredTaxExpenseIncome_lbl"/>    
    <loc xlink:type="locator" xlink:label="ifrs-full_DeferredTaxAssets" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DeferredTaxAssets"/> 
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="ifrs-full_DeferredTaxAssets_lbl" xml:lang="en-US">Deferred tax asset</label>  
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_DeferredTaxAssets" xlink:to="ifrs-full_DeferredTaxAssets_lbl"/>     
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_DeferredTaxAssets_lbl0" xml:lang="en-US">Deferred income tax asset</label>     
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_DeferredTaxAssets" xlink:to="ifrs-full_DeferredTaxAssets_lbl0"/> 
    <loc xlink:type="locator" xlink:label="ifrs-full_CategoriesOfRelatedPartiesAxis" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_CategoriesOfRelatedPartiesAxis"/>  
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_CategoriesOfRelatedPartiesAxis_lbl" xml:lang="en-US">Categories of related parties [axis]</label>   
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_CategoriesOfRelatedPartiesAxis" xlink:to="ifrs-full_CategoriesOfRelatedPartiesAxis_lbl"/> 
    <loc xlink:type="locator" xlink:label="ifrs-full_RangeAxis" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_RangeAxis"/>     
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_RangeAxis_lbl" xml:lang="en-US">Range [axis]</label>   
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_RangeAxis" xlink:to="ifrs-full_RangeAxis_lbl"/>    
    <loc xlink:type="locator" xlink:label="ifrs-full_DisclosureOfDetailedInformationAboutBorrowingsAbstract" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DisclosureOfDetailedInformationAboutBorrowingsAbstract"/>     
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_DisclosureOfDetailedInformationAboutBorrowingsAbstract_lbl" xml:lang="en-US">Long-Term Debt [Abstract]</label> 
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_DisclosureOfDetailedInformationAboutBorrowingsAbstract" xlink:to="ifrs-full_DisclosureOfDetailedInformationAboutBorrowingsAbstract_lbl"/>    
    <loc xlink:type="locator" xlink:label="ifrs-full_CostOfHedgingAbstract" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_CostOfHedgingAbstract"/>    
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_CostOfHedgingAbstract_lbl" xml:lang="en-US">Schedule of Minimum Hedging Requirements [Abstract]</label>    
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_CostOfHedgingAbstract" xlink:to="ifrs-full_CostOfHedgingAbstract_lbl"/>   
    <loc xlink:type="locator" xlink:label="ifrs-full_DebtSecurities" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DebtSecurities"/>     
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/periodStartLabel" xlink:label="ifrs-full_DebtSecurities_lbl" xml:lang="en-US">Principal, Balance</label>     
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_DebtSecurities" xlink:to="ifrs-full_DebtSecurities_lbl"/>    
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/periodEndLabel" xlink:label="ifrs-full_DebtSecurities_lbl0" xml:lang="en-US">Principal, Balance</label>    
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_DebtSecurities" xlink:to="ifrs-full_DebtSecurities_lbl0"/>     
    <loc xlink:type="locator" xlink:label="gfr_AmountOfUnamortizedFinancingCosts" xlink:href="gfr-20251231.xsd#gfr_AmountOfUnamortizedFinancingCosts"/>  
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/periodStartLabel" xlink:label="gfr_AmountOfUnamortizedFinancingCosts_lbl" xml:lang="en-US">Unamortized financing costs, Balance</label> 
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_AmountOfUnamortizedFinancingCosts" xlink:to="gfr_AmountOfUnamortizedFinancingCosts_lbl"/>     
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/periodEndLabel" xlink:label="gfr_AmountOfUnamortizedFinancingCosts_lbl0" xml:lang="en-US">Unamortized financing costs, Balance</label>     
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_AmountOfUnamortizedFinancingCosts" xlink:to="gfr_AmountOfUnamortizedFinancingCosts_lbl0"/> 
    <loc xlink:type="locator" xlink:label="ifrs-full_Borrowings" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_Borrowings"/>  
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/periodStartLabel" xlink:label="ifrs-full_Borrowings_lbl" xml:lang="en-US">Long-term debt, Balance</label> 
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_Borrowings" xlink:to="ifrs-full_Borrowings_lbl"/> 
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/periodEndLabel" xlink:label="ifrs-full_Borrowings_lbl0" xml:lang="en-US">Long-term debt, Balance</label>     
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_Borrowings" xlink:to="ifrs-full_Borrowings_lbl0"/>  
    <loc xlink:type="locator" xlink:label="ifrs-full_LeaseLiabilitiesAbstract" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_LeaseLiabilitiesAbstract"/>     
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_LeaseLiabilitiesAbstract_lbl" xml:lang="en-US">Lease Liabilities and Other [Abstract]</label>    
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_LeaseLiabilitiesAbstract" xlink:to="ifrs-full_LeaseLiabilitiesAbstract_lbl"/>    
    <loc xlink:type="locator" xlink:label="ifrs-full_LeaseLiabilities" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_LeaseLiabilities"/>    
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/periodStartLabel" xlink:label="ifrs-full_LeaseLiabilities_lbl" xml:lang="en-US">Balance</label> 
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_LeaseLiabilities" xlink:to="ifrs-full_LeaseLiabilities_lbl"/>   
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/periodEndLabel" xlink:label="ifrs-full_LeaseLiabilities_lbl0" xml:lang="en-US">Balance</label>     
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_LeaseLiabilities" xlink:to="ifrs-full_LeaseLiabilities_lbl0"/>    
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="ifrs-full_LeaseLiabilities_lbl1" xml:lang="en-US">Present value of net minimum lease payments</label>  
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_LeaseLiabilities" xlink:to="ifrs-full_LeaseLiabilities_lbl1"/>    
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_LeaseLiabilities_lbl2" xml:lang="en-US">Lease liabilities and other</label> 
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_LeaseLiabilities" xlink:to="ifrs-full_LeaseLiabilities_lbl2"/>    
    <loc xlink:type="locator" xlink:label="ifrs-full_MaturityAxis" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_MaturityAxis"/> 
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_MaturityAxis_lbl" xml:lang="en-US">Maturity [axis]</label>    
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_MaturityAxis" xlink:to="ifrs-full_MaturityAxis_lbl"/>     
    <loc xlink:type="locator" xlink:label="gfr_DecommissioningLiabilitiesAbstract" xlink:href="gfr-20251231.xsd#gfr_DecommissioningLiabilitiesAbstract"/>    
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gfr_DecommissioningLiabilitiesAbstract_lbl" xml:lang="en-US">Decommissioning Liabilities [Abstract]</label>   
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_DecommissioningLiabilitiesAbstract" xlink:to="gfr_DecommissioningLiabilitiesAbstract_lbl"/>  
    <loc xlink:type="locator" xlink:label="gfr_ReconciliationOfTheDecommissioningLiabilitiesAbstract" xlink:href="gfr-20251231.xsd#gfr_ReconciliationOfTheDecommissioningLiabilitiesAbstract"/>  
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gfr_ReconciliationOfTheDecommissioningLiabilitiesAbstract_lbl" xml:lang="en-US">Schedule of Reconciliation of the Decommissioning Liabilities [Abstract]</label> 
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_ReconciliationOfTheDecommissioningLiabilitiesAbstract" xlink:to="gfr_ReconciliationOfTheDecommissioningLiabilitiesAbstract_lbl"/>     
    <loc xlink:type="locator" xlink:label="gfr_DecommissioningLiabilities" xlink:href="gfr-20251231.xsd#gfr_DecommissioningLiabilities"/>   
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/periodStartLabel" xlink:label="gfr_DecommissioningLiabilities_lbl" xml:lang="en-US">Balance, beginning of year</label>    
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_DecommissioningLiabilities" xlink:to="gfr_DecommissioningLiabilities_lbl"/> 
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/periodEndLabel" xlink:label="gfr_DecommissioningLiabilities_lbl0" xml:lang="en-US">Balance, end of year</label>  
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_DecommissioningLiabilities" xlink:to="gfr_DecommissioningLiabilities_lbl0"/>  
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gfr_DecommissioningLiabilities_lbl1" xml:lang="en-US">Decommissioning liabilities</label>     
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_DecommissioningLiabilities" xlink:to="gfr_DecommissioningLiabilities_lbl1"/>  
    <loc xlink:type="locator" xlink:label="ifrs-full_WarrantyProvisionAbstract" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_WarrantyProvisionAbstract"/>  
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_WarrantyProvisionAbstract_lbl" xml:lang="en-US">Warrant Liability [Abstract]</label>     
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_WarrantyProvisionAbstract" xlink:to="ifrs-full_WarrantyProvisionAbstract_lbl"/> 
    <loc xlink:type="locator" xlink:label="gfr_NumberOfWarrantsShareOutstanding" xlink:href="gfr-20251231.xsd#gfr_NumberOfWarrantsShareOutstanding"/>     
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/periodStartLabel" xlink:label="gfr_NumberOfWarrantsShareOutstanding_lbl" xml:lang="en-US">Number of Warrants, Share, Beginning balance</label>   
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_NumberOfWarrantsShareOutstanding" xlink:to="gfr_NumberOfWarrantsShareOutstanding_lbl"/>   
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/periodEndLabel" xlink:label="gfr_NumberOfWarrantsShareOutstanding_lbl0" xml:lang="en-US">Number of Warrants, End of period</label> 
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_NumberOfWarrantsShareOutstanding" xlink:to="gfr_NumberOfWarrantsShareOutstanding_lbl0"/>    
    <loc xlink:type="locator" xlink:label="gfr_NumberOfWarrantsOutstandingValue" xlink:href="gfr-20251231.xsd#gfr_NumberOfWarrantsOutstandingValue"/>     
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/periodStartLabel" xlink:label="gfr_NumberOfWarrantsOutstandingValue_lbl" xml:lang="en-US">Number of Warrants, Amount, Beginning balance</label>    
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_NumberOfWarrantsOutstandingValue" xlink:to="gfr_NumberOfWarrantsOutstandingValue_lbl"/>   
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/periodEndLabel" xlink:label="gfr_NumberOfWarrantsOutstandingValue_lbl0" xml:lang="en-US">Number of Warrants, Amount, End of period</label>    
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_NumberOfWarrantsOutstandingValue" xlink:to="gfr_NumberOfWarrantsOutstandingValue_lbl0"/>    
    <loc xlink:type="locator" xlink:label="ifrs-full_ValuationTechniquesUsedInFairValueMeasurementAxis" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_ValuationTechniquesUsedInFairValueMeasurementAxis"/>     
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_ValuationTechniquesUsedInFairValueMeasurementAxis_lbl" xml:lang="en-US">Valuation techniques used in fair value measurement [axis]</label>    
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_ValuationTechniquesUsedInFairValueMeasurementAxis" xlink:to="ifrs-full_ValuationTechniquesUsedInFairValueMeasurementAxis_lbl"/>    
    <loc xlink:type="locator" xlink:label="ifrs-full_NotesAndOtherExplanatoryInformationAbstract" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_NotesAndOtherExplanatoryInformationAbstract"/>   
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_NotesAndOtherExplanatoryInformationAbstract_lbl" xml:lang="en-US">Share Capital and Per Share Amounts [Abstract]</label> 
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_NotesAndOtherExplanatoryInformationAbstract" xlink:to="ifrs-full_NotesAndOtherExplanatoryInformationAbstract_lbl"/>  
    <loc xlink:type="locator" xlink:label="ifrs-full_DisclosureOfClassesOfShareCapitalAbstract" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DisclosureOfClassesOfShareCapitalAbstract"/>    
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_DisclosureOfClassesOfShareCapitalAbstract_lbl" xml:lang="en-US">Schedule of Common Share Capital [Abstract]</label> 
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_DisclosureOfClassesOfShareCapitalAbstract" xlink:to="ifrs-full_DisclosureOfClassesOfShareCapitalAbstract_lbl"/>   
    <loc xlink:type="locator" xlink:label="ifrs-full_NumberOfSharesOutstanding" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_NumberOfSharesOutstanding"/>  
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/periodStartLabel" xlink:label="ifrs-full_NumberOfSharesOutstanding_lbl" xml:lang="en-US">Balance, beginning, Share (in Shares)</label>     
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_NumberOfSharesOutstanding" xlink:to="ifrs-full_NumberOfSharesOutstanding_lbl"/> 
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/periodEndLabel" xlink:label="ifrs-full_NumberOfSharesOutstanding_lbl0" xml:lang="en-US">Balance, ending, Share (in Shares)</label> 
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_NumberOfSharesOutstanding" xlink:to="ifrs-full_NumberOfSharesOutstanding_lbl0"/>  
    <loc xlink:type="locator" xlink:label="ifrs-full_IssuedCapital" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_IssuedCapital"/>   
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/periodStartLabel" xlink:label="ifrs-full_IssuedCapital_lbl" xml:lang="en-US">Balance, beginning, Amount</label>  
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_IssuedCapital" xlink:to="ifrs-full_IssuedCapital_lbl"/>  
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/periodEndLabel" xlink:label="ifrs-full_IssuedCapital_lbl0" xml:lang="en-US">Balance, ending, Amount</label>   
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_IssuedCapital" xlink:to="ifrs-full_IssuedCapital_lbl0"/>   
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_IssuedCapital_lbl1" xml:lang="en-US">Share capital</label>    
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_IssuedCapital" xlink:to="ifrs-full_IssuedCapital_lbl1"/>   
    <loc xlink:type="locator" xlink:label="ifrs-full_EarningsPerShareAbstract" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_EarningsPerShareAbstract"/>     
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_EarningsPerShareAbstract_lbl" xml:lang="en-US">Schedule of Basic and Diluted Net Income (Loss) Per Share [Abstract]</label>    
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_EarningsPerShareAbstract" xlink:to="ifrs-full_EarningsPerShareAbstract_lbl"/>    
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_EarningsPerShareAbstract_lbl0" xml:lang="en-US">Net income per share</label>  
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_EarningsPerShareAbstract" xlink:to="ifrs-full_EarningsPerShareAbstract_lbl0"/>     
    <loc xlink:type="locator" xlink:label="ifrs-full_RevenueAbstract" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_RevenueAbstract"/>  
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_RevenueAbstract_lbl" xml:lang="en-US">Revenue from Contracts with Customers [Abstract]</label>     
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_RevenueAbstract" xlink:to="ifrs-full_RevenueAbstract_lbl"/> 
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_RevenueAbstract_lbl0" xml:lang="en-US">Revenues</label> 
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_RevenueAbstract" xlink:to="ifrs-full_RevenueAbstract_lbl0"/>  
    <loc xlink:type="locator" xlink:label="gfr_FinancingAndInterestAbstract" xlink:href="gfr-20251231.xsd#gfr_FinancingAndInterestAbstract"/>  
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gfr_FinancingAndInterestAbstract_lbl" xml:lang="en-US">Financing and Interest [Abstract]</label>  
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_FinancingAndInterestAbstract" xlink:to="gfr_FinancingAndInterestAbstract_lbl"/>     
    <loc xlink:type="locator" xlink:label="gfr_ScheduleOfFinancingAndInterestAbstract" xlink:href="gfr-20251231.xsd#gfr_ScheduleOfFinancingAndInterestAbstract"/>  
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gfr_ScheduleOfFinancingAndInterestAbstract_lbl" xml:lang="en-US">Schedule of Financing and Interest [Abstract]</label>    
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_ScheduleOfFinancingAndInterestAbstract" xlink:to="gfr_ScheduleOfFinancingAndInterestAbstract_lbl"/>     
    <loc xlink:type="locator" xlink:label="gfr_FinancingAndInterestExpenses" xlink:href="gfr-20251231.xsd#gfr_FinancingAndInterestExpenses"/>  
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="gfr_FinancingAndInterestExpenses_lbl" xml:lang="en-US">Financing and interest expenses</label>     
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_FinancingAndInterestExpenses" xlink:to="gfr_FinancingAndInterestExpenses_lbl"/>     
    <loc xlink:type="locator" xlink:label="ifrs-full_ExpenseFromSharebasedPaymentTransactionsInWhichGoodsOrServicesReceivedDidNotQualifyForRecognitionAsAssetsAbstract" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_ExpenseFromSharebasedPaymentTransactionsInWhichGoodsOrServicesReceivedDidNotQualifyForRecognitionAsAssetsAbstract"/>   
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_ExpenseFromSharebasedPaymentTransactionsInWhichGoodsOrServicesReceivedDidNotQualifyForRecognitionAsAssetsAbstract_lbl" xml:lang="en-US">Stock-Based Compensation [Abstract]</label>     
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_ExpenseFromSharebasedPaymentTransactionsInWhichGoodsOrServicesReceivedDidNotQualifyForRecognitionAsAssetsAbstract" xlink:to="ifrs-full_ExpenseFromSharebasedPaymentTransactionsInWhichGoodsOrServicesReceivedDidNotQualifyForRecognitionAsAssetsAbstract_lbl"/>  
    <loc xlink:type="locator" xlink:label="ifrs-full_NumberOfOutstandingShareOptions" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_NumberOfOutstandingShareOptions"/>    
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/periodStartLabel" xlink:label="ifrs-full_NumberOfOutstandingShareOptions_lbl" xml:lang="en-US">Outstanding, beginning balance</label>    
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_NumberOfOutstandingShareOptions" xlink:to="ifrs-full_NumberOfOutstandingShareOptions_lbl"/>   
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/periodEndLabel" xlink:label="ifrs-full_NumberOfOutstandingShareOptions_lbl0" xml:lang="en-US">Outstanding, ending balance</label>     
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_NumberOfOutstandingShareOptions" xlink:to="ifrs-full_NumberOfOutstandingShareOptions_lbl0"/>    
    <loc xlink:type="locator" xlink:label="ifrs-full_TypesOfSharebasedPaymentArrangementsAxis" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_TypesOfSharebasedPaymentArrangementsAxis"/>  
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_TypesOfSharebasedPaymentArrangementsAxis_lbl" xml:lang="en-US">Types of share-based payment arrangements [axis]</label>     
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_TypesOfSharebasedPaymentArrangementsAxis" xlink:to="ifrs-full_TypesOfSharebasedPaymentArrangementsAxis_lbl"/> 
    <loc xlink:type="locator" xlink:label="ifrs-full_DisclosureOfRiskManagementStrategyRelatedToHedgeAccountingAbstract" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DisclosureOfRiskManagementStrategyRelatedToHedgeAccountingAbstract"/>    
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_DisclosureOfRiskManagementStrategyRelatedToHedgeAccountingAbstract_lbl" xml:lang="en-US">Financial Instruments and Risk Management [Abstract]</label>     
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_DisclosureOfRiskManagementStrategyRelatedToHedgeAccountingAbstract" xlink:to="ifrs-full_DisclosureOfRiskManagementStrategyRelatedToHedgeAccountingAbstract_lbl"/>   
    <loc xlink:type="locator" xlink:label="ifrs-full_TypesOfRisksAxis" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_TypesOfRisksAxis"/>    
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_TypesOfRisksAxis_lbl" xml:lang="en-US">Types of risks [axis]</label>    
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_TypesOfRisksAxis" xlink:to="ifrs-full_TypesOfRisksAxis_lbl"/>   
    <loc xlink:type="locator" xlink:label="ifrs-full_AssetsAbstract" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_AssetsAbstract"/>     
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_AssetsAbstract_lbl" xml:lang="en-US">Schedule of Assets and Liability [Abstract]</label>    
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_AssetsAbstract" xlink:to="ifrs-full_AssetsAbstract_lbl"/>    
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_AssetsAbstract_lbl0" xml:lang="en-US">Assets</label>   
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_AssetsAbstract" xlink:to="ifrs-full_AssetsAbstract_lbl0"/>     
    <loc xlink:type="locator" xlink:label="gfr_RiskManagementContracts" xlink:href="gfr-20251231.xsd#gfr_RiskManagementContracts"/>  
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedTotalLabel" xlink:label="gfr_RiskManagementContracts_lbl" xml:lang="en-US">Risk management contracts &#8211; asset (liability)</label>  
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_RiskManagementContracts" xlink:to="gfr_RiskManagementContracts_lbl"/>     
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gfr_RiskManagementContracts_lbl0" xml:lang="en-US">Risk management contracts</label>     
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_RiskManagementContracts" xlink:to="gfr_RiskManagementContracts_lbl0"/> 
    <loc xlink:type="locator" xlink:label="gfr_ScheduleOfGainLossOnRiskManagementContractsabstract" xlink:href="gfr-20251231.xsd#gfr_ScheduleOfGainLossOnRiskManagementContractsabstract"/>   
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gfr_ScheduleOfGainLossOnRiskManagementContractsabstract_lbl" xml:lang="en-US">Schedule of Gain (Loss) on Risk Management Contracts [Abstract]</label>     
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_ScheduleOfGainLossOnRiskManagementContractsabstract" xlink:to="gfr_ScheduleOfGainLossOnRiskManagementContractsabstract_lbl"/> 
    <loc xlink:type="locator" xlink:label="gfr_GainlossOnRiskManagementContract" xlink:href="gfr-20251231.xsd#gfr_GainlossOnRiskManagementContract"/>     
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="gfr_GainlossOnRiskManagementContract_lbl" xml:lang="en-US">Gain (loss) on risk management contracts</label>   
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_GainlossOnRiskManagementContract" xlink:to="gfr_GainlossOnRiskManagementContract_lbl"/>   
    <loc xlink:type="locator" xlink:label="ifrs-full_ClassesOfFinancialInstrumentsAxis" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_ClassesOfFinancialInstrumentsAxis"/>   
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_ClassesOfFinancialInstrumentsAxis_lbl" xml:lang="en-US">Classes of financial instruments [axis]</label>    
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_ClassesOfFinancialInstrumentsAxis" xlink:to="ifrs-full_ClassesOfFinancialInstrumentsAxis_lbl"/>  
    <loc xlink:type="locator" xlink:label="ifrs-full_MeasurementAxis" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_MeasurementAxis"/>  
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_MeasurementAxis_lbl" xml:lang="en-US">Measurement [axis]</label>     
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_MeasurementAxis" xlink:to="ifrs-full_MeasurementAxis_lbl"/> 
    <loc xlink:type="locator" xlink:label="ifrs-full_ConcentrationsOfRiskAxis" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_ConcentrationsOfRiskAxis"/>     
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_ConcentrationsOfRiskAxis_lbl" xml:lang="en-US">Concentrations of risk [axis]</label>     
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_ConcentrationsOfRiskAxis" xlink:to="ifrs-full_ConcentrationsOfRiskAxis_lbl"/>    
    <loc xlink:type="locator" xlink:label="ifrs-full_DisclosureOfCreditRiskExposureAbstract" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DisclosureOfCreditRiskExposureAbstract"/>   
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_DisclosureOfCreditRiskExposureAbstract_lbl" xml:lang="en-US">Schedule of Credit Risk [Abstract]</label>    
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_DisclosureOfCreditRiskExposureAbstract" xlink:to="ifrs-full_DisclosureOfCreditRiskExposureAbstract_lbl"/>  
    <loc xlink:type="locator" xlink:label="ifrs-full_TradeAndOtherCurrentReceivables" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_TradeAndOtherCurrentReceivables"/>    
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="ifrs-full_TradeAndOtherCurrentReceivables_lbl" xml:lang="en-US">Accounts receivable</label>  
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_TradeAndOtherCurrentReceivables" xlink:to="ifrs-full_TradeAndOtherCurrentReceivables_lbl"/>   
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_TradeAndOtherCurrentReceivables_lbl0" xml:lang="en-US">Accounts receivable</label>   
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_TradeAndOtherCurrentReceivables" xlink:to="ifrs-full_TradeAndOtherCurrentReceivables_lbl0"/>    
    <loc xlink:type="locator" xlink:label="ifrs-full_FinancialLiabilities" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_FinancialLiabilities"/>  
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="ifrs-full_FinancialLiabilities_lbl" xml:lang="en-US">Total financial liabilities</label>    
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_FinancialLiabilities" xlink:to="ifrs-full_FinancialLiabilities_lbl"/> 
    <loc xlink:type="locator" xlink:label="gfr_CommitmentsAndContingenciesAbstract" xlink:href="gfr-20251231.xsd#gfr_CommitmentsAndContingenciesAbstract"/> 
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gfr_CommitmentsAndContingenciesAbstract_lbl" xml:lang="en-US">Commitments and Contingencies [Abstract]</label> 
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_CommitmentsAndContingenciesAbstract" xlink:to="gfr_CommitmentsAndContingenciesAbstract_lbl"/>    
    <loc xlink:type="locator" xlink:label="gfr_EstimatedFutureUnrecognizedCommitments" xlink:href="gfr-20251231.xsd#gfr_EstimatedFutureUnrecognizedCommitments"/>  
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="gfr_EstimatedFutureUnrecognizedCommitments_lbl" xml:lang="en-US">Total commitments</label> 
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_EstimatedFutureUnrecognizedCommitments" xlink:to="gfr_EstimatedFutureUnrecognizedCommitments_lbl"/>     
    <loc xlink:type="locator" xlink:label="gfr_LeaseContractTermAxis" xlink:href="gfr-20251231.xsd#gfr_LeaseContractTermAxis"/>   
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gfr_LeaseContractTermAxis_lbl" xml:lang="en-US">Lease Contract Term [Axis]</label>   
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_LeaseContractTermAxis" xlink:to="gfr_LeaseContractTermAxis_lbl"/> 
    <loc xlink:type="locator" xlink:label="gfr_CapitalManagementAbstract" xlink:href="gfr-20251231.xsd#gfr_CapitalManagementAbstract"/> 
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gfr_CapitalManagementAbstract_lbl" xml:lang="en-US">Capital Management [Abstract]</label>     
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_CapitalManagementAbstract" xlink:to="gfr_CapitalManagementAbstract_lbl"/>    
    <loc xlink:type="locator" xlink:label="gfr_AccountsPayableAndAccruedLiabilitiesAbstract" xlink:href="gfr-20251231.xsd#gfr_AccountsPayableAndAccruedLiabilitiesAbstract"/>    
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gfr_AccountsPayableAndAccruedLiabilitiesAbstract_lbl" xml:lang="en-US">Accounts Payable and Accrued Liabilities [Abstract]</label> 
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_AccountsPayableAndAccruedLiabilitiesAbstract" xlink:to="gfr_AccountsPayableAndAccruedLiabilitiesAbstract_lbl"/>  
    <loc xlink:type="locator" xlink:label="gfr_ScheduleOfAccountsPayableAndAccruedLiabilitiesAbstract" xlink:href="gfr-20251231.xsd#gfr_ScheduleOfAccountsPayableAndAccruedLiabilitiesAbstract"/>    
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gfr_ScheduleOfAccountsPayableAndAccruedLiabilitiesAbstract_lbl" xml:lang="en-US">Schedule of Accounts Payable and Accrued Liabilities [Abstract]</label>   
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_ScheduleOfAccountsPayableAndAccruedLiabilitiesAbstract" xlink:to="gfr_ScheduleOfAccountsPayableAndAccruedLiabilitiesAbstract_lbl"/>  
    <loc xlink:type="locator" xlink:label="ifrs-full_TradeAndOtherCurrentPayables" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_TradeAndOtherCurrentPayables"/>   
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="ifrs-full_TradeAndOtherCurrentPayables_lbl" xml:lang="en-US">Accounts payable and accrued liabilities</label>     
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_TradeAndOtherCurrentPayables" xlink:to="ifrs-full_TradeAndOtherCurrentPayables_lbl"/>  
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_TradeAndOtherCurrentPayables_lbl0" xml:lang="en-US">Accounts payable and accrued liabilities</label> 
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_TradeAndOtherCurrentPayables" xlink:to="ifrs-full_TradeAndOtherCurrentPayables_lbl0"/>   
    <loc xlink:type="locator" xlink:label="gfr_SupplementalCasFFlowInformationAbstract" xlink:href="gfr-20251231.xsd#gfr_SupplementalCasFFlowInformationAbstract"/>    
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gfr_SupplementalCasFFlowInformationAbstract_lbl" xml:lang="en-US">Supplemental Cash Flow Information [Abstract]</label>     
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_SupplementalCasFFlowInformationAbstract" xlink:to="gfr_SupplementalCasFFlowInformationAbstract_lbl"/>  
    <loc xlink:type="locator" xlink:label="gfr_ConsolidatedBalanceSheetToTheConsolidatedStatementOfCashFlowsAbstract" xlink:href="gfr-20251231.xsd#gfr_ConsolidatedBalanceSheetToTheConsolidatedStatementOfCashFlowsAbstract"/>    
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gfr_ConsolidatedBalanceSheetToTheConsolidatedStatementOfCashFlowsAbstract_lbl" xml:lang="en-US">Schedule of Consolidated Balance Sheet to the Consolidated Statement of Cash Flows [Abstract]</label>   
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_ConsolidatedBalanceSheetToTheConsolidatedStatementOfCashFlowsAbstract" xlink:to="gfr_ConsolidatedBalanceSheetToTheConsolidatedStatementOfCashFlowsAbstract_lbl"/>  
    <loc xlink:type="locator" xlink:label="gfr_NoncashWorkingCapital" xlink:href="gfr-20251231.xsd#gfr_NoncashWorkingCapital"/>   
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="gfr_NoncashWorkingCapital_lbl" xml:lang="en-US">Non-cash working capital</label> 
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_NoncashWorkingCapital" xlink:to="gfr_NoncashWorkingCapital_lbl"/> 
    <loc xlink:type="locator" xlink:label="gfr_NetChangeInNoncashWorkingCapital" xlink:href="gfr-20251231.xsd#gfr_NetChangeInNoncashWorkingCapital"/>     
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="gfr_NetChangeInNoncashWorkingCapital_lbl" xml:lang="en-US">Net change in non-cash working capital</label> 
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_NetChangeInNoncashWorkingCapital" xlink:to="gfr_NetChangeInNoncashWorkingCapital_lbl"/>   
    <loc xlink:type="locator" xlink:label="ifrs-full_RelatedPartyTransactionsAbstract" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_RelatedPartyTransactionsAbstract"/> 
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_RelatedPartyTransactionsAbstract_lbl" xml:lang="en-US">Related Party Transactions [Abstract]</label> 
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_RelatedPartyTransactionsAbstract" xlink:to="ifrs-full_RelatedPartyTransactionsAbstract_lbl"/>     
    <loc xlink:type="locator" xlink:label="ifrs-full_DisclosureOfAmountsIncurredByEntityForProvisionOfKeyManagementPersonnelServicesProvidedBySeparateManagementEntitiesAbstract" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DisclosureOfAmountsIncurredByEntityForProvisionOfKeyManagementPersonnelServicesProvidedBySeparateManagementEntitiesAbstract"/>   
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_DisclosureOfAmountsIncurredByEntityForProvisionOfKeyManagementPersonnelServicesProvidedBySeparateManagementEntitiesAbstract_lbl" xml:lang="en-US">Schedule of Considers Directors and Officers [Abstract]</label>     
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_DisclosureOfAmountsIncurredByEntityForProvisionOfKeyManagementPersonnelServicesProvidedBySeparateManagementEntitiesAbstract" xlink:to="ifrs-full_DisclosureOfAmountsIncurredByEntityForProvisionOfKeyManagementPersonnelServicesProvidedBySeparateManagementEntitiesAbstract_lbl"/>  
    <loc xlink:type="locator" xlink:label="dei_DocumentType" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_DocumentType"/> 
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="dei_DocumentType_lbl" xml:lang="en-US">Document Type</label> 
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="dei_DocumentType" xlink:to="dei_DocumentType_lbl"/>   
    <loc xlink:type="locator" xlink:label="dei_DocumentRegistrationStatement" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_DocumentRegistrationStatement"/>     
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="dei_DocumentRegistrationStatement_lbl" xml:lang="en-US">Document Registration Statement</label> 
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="dei_DocumentRegistrationStatement" xlink:to="dei_DocumentRegistrationStatement_lbl"/>  
    <loc xlink:type="locator" xlink:label="dei_DocumentAnnualReport" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_DocumentAnnualReport"/>  
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="dei_DocumentAnnualReport_lbl" xml:lang="en-US">Document Annual Report</label>   
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="dei_DocumentAnnualReport" xlink:to="dei_DocumentAnnualReport_lbl"/>    
    <loc xlink:type="locator" xlink:label="dei_CurrentFiscalYearEndDate" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_CurrentFiscalYearEndDate"/>     
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="dei_CurrentFiscalYearEndDate_lbl" xml:lang="en-US">Current Fiscal Year End Date</label>   
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="dei_CurrentFiscalYearEndDate" xlink:to="dei_CurrentFiscalYearEndDate_lbl"/>  
    <loc xlink:type="locator" xlink:label="dei_DocumentPeriodEndDate" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_DocumentPeriodEndDate"/>    
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="dei_DocumentPeriodEndDate_lbl" xml:lang="en-US">Document Period End Date</label> 
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="dei_DocumentPeriodEndDate" xlink:to="dei_DocumentPeriodEndDate_lbl"/> 
    <loc xlink:type="locator" xlink:label="dei_DocumentFiscalYearFocus" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_DocumentFiscalYearFocus"/>   
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="dei_DocumentFiscalYearFocus_lbl" xml:lang="en-US">Document Fiscal Year Focus</label>     
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="dei_DocumentFiscalYearFocus" xlink:to="dei_DocumentFiscalYearFocus_lbl"/>     
    <loc xlink:type="locator" xlink:label="dei_EntityFileNumber" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_EntityFileNumber"/>    
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="dei_EntityFileNumber_lbl" xml:lang="en-US">Entity File Number</label>     
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="dei_EntityFileNumber" xlink:to="dei_EntityFileNumber_lbl"/> 
    <loc xlink:type="locator" xlink:label="dei_EntityRegistrantName" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_EntityRegistrantName"/>  
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="dei_EntityRegistrantName_lbl" xml:lang="en-US">Entity Registrant Name</label>   
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="dei_EntityRegistrantName" xlink:to="dei_EntityRegistrantName_lbl"/>    
    <loc xlink:type="locator" xlink:label="dei_EntityIncorporationStateCountryCode" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_EntityIncorporationStateCountryCode"/>  
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="dei_EntityIncorporationStateCountryCode_lbl" xml:lang="en-US">Entity Incorporation, State or Country Code</label>    
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="dei_EntityIncorporationStateCountryCode" xlink:to="dei_EntityIncorporationStateCountryCode_lbl"/>    
    <loc xlink:type="locator" xlink:label="dei_EntityAddressAddressLine1" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_EntityAddressAddressLine1"/>  
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="dei_EntityAddressAddressLine1_lbl" xml:lang="en-US">Entity Address, Address Line One</label>   
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="dei_EntityAddressAddressLine1" xlink:to="dei_EntityAddressAddressLine1_lbl"/>    
    <loc xlink:type="locator" xlink:label="dei_EntityAddressCityOrTown" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_EntityAddressCityOrTown"/>   
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="dei_EntityAddressCityOrTown_lbl" xml:lang="en-US">Entity Address, City or Town</label>  
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="dei_EntityAddressCityOrTown" xlink:to="dei_EntityAddressCityOrTown_lbl"/>     
    <loc xlink:type="locator" xlink:label="dei_EntityAddressStateOrProvince" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_EntityAddressStateOrProvince"/>   
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="dei_EntityAddressStateOrProvince_lbl" xml:lang="en-US">Entity Address, State or Province</label>  
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="dei_EntityAddressStateOrProvince" xlink:to="dei_EntityAddressStateOrProvince_lbl"/>     
    <loc xlink:type="locator" xlink:label="dei_EntityAddressPostalZipCode" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_EntityAddressPostalZipCode"/>    
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="dei_EntityAddressPostalZipCode_lbl" xml:lang="en-US">Entity Address, Postal Zip Code</label>   
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="dei_EntityAddressPostalZipCode" xlink:to="dei_EntityAddressPostalZipCode_lbl"/> 
    <loc xlink:type="locator" xlink:label="dei_CityAreaCode" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_CityAreaCode"/> 
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="dei_CityAreaCode_lbl" xml:lang="en-US">City Area Code</label>  
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="dei_CityAreaCode" xlink:to="dei_CityAreaCode_lbl"/>   
    <loc xlink:type="locator" xlink:label="dei_LocalPhoneNumber" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_LocalPhoneNumber"/>    
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="dei_LocalPhoneNumber_lbl" xml:lang="en-US">Local Phone Number</label>     
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="dei_LocalPhoneNumber" xlink:to="dei_LocalPhoneNumber_lbl"/> 
    <loc xlink:type="locator" xlink:label="dei_ContactPersonnelName" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_ContactPersonnelName"/>  
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="dei_ContactPersonnelName_lbl" xml:lang="en-US">Contact Personnel Name</label>   
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="dei_ContactPersonnelName" xlink:to="dei_ContactPersonnelName_lbl"/>    
    <loc xlink:type="locator" xlink:label="dei_EntityAddressAddressLine2" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_EntityAddressAddressLine2"/>  
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="dei_EntityAddressAddressLine2_lbl" xml:lang="en-US">Entity Address, Address Line Two</label>   
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="dei_EntityAddressAddressLine2" xlink:to="dei_EntityAddressAddressLine2_lbl"/>    
    <loc xlink:type="locator" xlink:label="dei_Security12bTitle" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_Security12bTitle"/>    
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="dei_Security12bTitle_lbl" xml:lang="en-US">Title of 12(b) Security</label>     
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="dei_Security12bTitle" xlink:to="dei_Security12bTitle_lbl"/> 
    <loc xlink:type="locator" xlink:label="dei_TradingSymbol" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_TradingSymbol"/>   
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="dei_TradingSymbol_lbl" xml:lang="en-US">Trading Symbol</label>   
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="dei_TradingSymbol" xlink:to="dei_TradingSymbol_lbl"/>     
    <loc xlink:type="locator" xlink:label="dei_SecurityExchangeName" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_SecurityExchangeName"/>  
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="dei_SecurityExchangeName_lbl" xml:lang="en-US">Security Exchange Name</label>   
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="dei_SecurityExchangeName" xlink:to="dei_SecurityExchangeName_lbl"/>    
    <loc xlink:type="locator" xlink:label="dei_AnnualInformationForm" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_AnnualInformationForm"/>    
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="dei_AnnualInformationForm_lbl" xml:lang="en-US">Annual Information Form</label>     
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="dei_AnnualInformationForm" xlink:to="dei_AnnualInformationForm_lbl"/> 
    <loc xlink:type="locator" xlink:label="dei_AuditedAnnualFinancialStatements" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_AuditedAnnualFinancialStatements"/> 
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="dei_AuditedAnnualFinancialStatements_lbl" xml:lang="en-US">Audited Annual Financial Statements</label>   
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="dei_AuditedAnnualFinancialStatements" xlink:to="dei_AuditedAnnualFinancialStatements_lbl"/>   
    <loc xlink:type="locator" xlink:label="dei_EntityCommonStockSharesOutstanding" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_EntityCommonStockSharesOutstanding"/>     
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="dei_EntityCommonStockSharesOutstanding_lbl" xml:lang="en-US">Entity Common Stock, Shares Outstanding</label>    
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="dei_EntityCommonStockSharesOutstanding" xlink:to="dei_EntityCommonStockSharesOutstanding_lbl"/>  
    <loc xlink:type="locator" xlink:label="dei_EntityCurrentReportingStatus" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_EntityCurrentReportingStatus"/>   
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="dei_EntityCurrentReportingStatus_lbl" xml:lang="en-US">Entity Current Reporting Status</label>     
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="dei_EntityCurrentReportingStatus" xlink:to="dei_EntityCurrentReportingStatus_lbl"/>     
    <loc xlink:type="locator" xlink:label="dei_EntityInteractiveDataCurrent" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_EntityInteractiveDataCurrent"/>   
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="dei_EntityInteractiveDataCurrent_lbl" xml:lang="en-US">Entity Interactive Data Current</label>     
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="dei_EntityInteractiveDataCurrent" xlink:to="dei_EntityInteractiveDataCurrent_lbl"/>     
    <loc xlink:type="locator" xlink:label="dei_EntityEmergingGrowthCompany" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_EntityEmergingGrowthCompany"/> 
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="dei_EntityEmergingGrowthCompany_lbl" xml:lang="en-US">Entity Emerging Growth Company</label>   
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="dei_EntityEmergingGrowthCompany" xlink:to="dei_EntityEmergingGrowthCompany_lbl"/>   
    <loc xlink:type="locator" xlink:label="dei_EntityExTransitionPeriod" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_EntityExTransitionPeriod"/>     
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="dei_EntityExTransitionPeriod_lbl" xml:lang="en-US">Entity Ex Transition Period</label>  
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="dei_EntityExTransitionPeriod" xlink:to="dei_EntityExTransitionPeriod_lbl"/>  
    <loc xlink:type="locator" xlink:label="dei_IcfrAuditorAttestationFlag" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_IcfrAuditorAttestationFlag"/>    
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="dei_IcfrAuditorAttestationFlag_lbl" xml:lang="en-US">ICFR Auditor Attestation Flag</label> 
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="dei_IcfrAuditorAttestationFlag" xlink:to="dei_IcfrAuditorAttestationFlag_lbl"/> 
    <loc xlink:type="locator" xlink:label="dei_DocumentFinStmtErrorCorrectionFlag" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_DocumentFinStmtErrorCorrectionFlag"/>     
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="dei_DocumentFinStmtErrorCorrectionFlag_lbl" xml:lang="en-US">Document Financial Statement Error Correction [Flag]</label>  
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="dei_DocumentFinStmtErrorCorrectionFlag" xlink:to="dei_DocumentFinStmtErrorCorrectionFlag_lbl"/>  
    <loc xlink:type="locator" xlink:label="dei_AuditorName" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_AuditorName"/>    
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="dei_AuditorName_lbl" xml:lang="en-US">Auditor Name</label>    
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="dei_AuditorName" xlink:to="dei_AuditorName_lbl"/> 
    <loc xlink:type="locator" xlink:label="dei_AuditorLocation" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_AuditorLocation"/>  
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="dei_AuditorLocation_lbl" xml:lang="en-US">Auditor Location</label>  
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="dei_AuditorLocation" xlink:to="dei_AuditorLocation_lbl"/>    
    <loc xlink:type="locator" xlink:label="dei_AuditorFirmId" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_AuditorFirmId"/>   
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="dei_AuditorFirmId_lbl" xml:lang="en-US">Auditor Firm ID</label>    
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="dei_AuditorFirmId" xlink:to="dei_AuditorFirmId_lbl"/>     
    <loc xlink:type="locator" xlink:label="dei_EntityCentralIndexKey" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_EntityCentralIndexKey"/>    
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="dei_EntityCentralIndexKey_lbl" xml:lang="en-US">Entity Central Index Key</label> 
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="dei_EntityCentralIndexKey" xlink:to="dei_EntityCentralIndexKey_lbl"/> 
    <loc xlink:type="locator" xlink:label="dei_AmendmentFlag" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_AmendmentFlag"/>   
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="dei_AmendmentFlag_lbl" xml:lang="en-US">Amendment Flag</label>   
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="dei_AmendmentFlag" xlink:to="dei_AmendmentFlag_lbl"/>     
    <loc xlink:type="locator" xlink:label="dei_DocumentFiscalPeriodFocus" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_DocumentFiscalPeriodFocus"/>  
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="dei_DocumentFiscalPeriodFocus_lbl" xml:lang="en-US">Document Fiscal Period Focus</label>    
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="dei_DocumentFiscalPeriodFocus" xlink:to="dei_DocumentFiscalPeriodFocus_lbl"/>    
    <loc xlink:type="locator" xlink:label="ifrs-full_CurrentAssetsAbstract" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_CurrentAssetsAbstract"/>    
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_CurrentAssetsAbstract_lbl" xml:lang="en-US">Current assets</label>  
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_CurrentAssetsAbstract" xlink:to="ifrs-full_CurrentAssetsAbstract_lbl"/>   
    <loc xlink:type="locator" xlink:label="ifrs-full_CurrentPrepaidExpenses" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_CurrentPrepaidExpenses"/> 
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_CurrentPrepaidExpenses_lbl" xml:lang="en-US">Prepaid expenses and deposits</label>   
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_CurrentPrepaidExpenses" xlink:to="ifrs-full_CurrentPrepaidExpenses_lbl"/>     
    <loc xlink:type="locator" xlink:label="ifrs-full_CurrentContractAssets" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_CurrentContractAssets"/>    
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_CurrentContractAssets_lbl" xml:lang="en-US">Risk management contracts</label>   
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_CurrentContractAssets" xlink:to="ifrs-full_CurrentContractAssets_lbl"/>   
    <loc xlink:type="locator" xlink:label="ifrs-full_CurrentAssets" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_CurrentAssets"/>   
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="ifrs-full_CurrentAssets_lbl" xml:lang="en-US">Total current assets</label>     
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_CurrentAssets" xlink:to="ifrs-full_CurrentAssets_lbl"/>  
    <loc xlink:type="locator" xlink:label="ifrs-full_NoncurrentAssetsAbstract" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_NoncurrentAssetsAbstract"/>     
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_NoncurrentAssetsAbstract_lbl" xml:lang="en-US">Non-current assets</label>    
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_NoncurrentAssetsAbstract" xlink:to="ifrs-full_NoncurrentAssetsAbstract_lbl"/>    
    <loc xlink:type="locator" xlink:label="ifrs-full_LiabilitiesAbstract" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_LiabilitiesAbstract"/>     
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_LiabilitiesAbstract_lbl" xml:lang="en-US">Liabilities</label>  
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_LiabilitiesAbstract" xlink:to="ifrs-full_LiabilitiesAbstract_lbl"/>    
    <loc xlink:type="locator" xlink:label="ifrs-full_CurrentLiabilitiesAbstract" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_CurrentLiabilitiesAbstract"/>    
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_CurrentLiabilitiesAbstract_lbl" xml:lang="en-US">Current liabilities</label>  
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_CurrentLiabilitiesAbstract" xlink:to="ifrs-full_CurrentLiabilitiesAbstract_lbl"/>   
    <loc xlink:type="locator" xlink:label="ifrs-full_CurrentPortionOfLongtermBorrowings" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_CurrentPortionOfLongtermBorrowings"/>     
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_CurrentPortionOfLongtermBorrowings_lbl" xml:lang="en-US">Current portion of long-term debt</label>    
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_CurrentPortionOfLongtermBorrowings" xlink:to="ifrs-full_CurrentPortionOfLongtermBorrowings_lbl"/>    
    <loc xlink:type="locator" xlink:label="ifrs-full_CurrentLeaseLiabilities" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_CurrentLeaseLiabilities"/>   
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_CurrentLeaseLiabilities_lbl" xml:lang="en-US">Current portion of lease liabilities and other</label> 
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_CurrentLeaseLiabilities" xlink:to="ifrs-full_CurrentLeaseLiabilities_lbl"/>  
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ifrs-full_CurrentLeaseLiabilities_lbl0" xml:lang="en-US">Current portion</label>   
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_CurrentLeaseLiabilities" xlink:to="ifrs-full_CurrentLeaseLiabilities_lbl0"/>   
    <loc xlink:type="locator" xlink:label="ifrs-full_CurrentWarrantLiability" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_CurrentWarrantLiability"/>   
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_CurrentWarrantLiability_lbl" xml:lang="en-US">Warrant liability</label>  
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_CurrentWarrantLiability" xlink:to="ifrs-full_CurrentWarrantLiability_lbl"/>  
    <loc xlink:type="locator" xlink:label="ifrs-full_CurrentContractLiabilities" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_CurrentContractLiabilities"/>    
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_CurrentContractLiabilities_lbl" xml:lang="en-US">Risk management contracts</label>   
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_CurrentContractLiabilities" xlink:to="ifrs-full_CurrentContractLiabilities_lbl"/>   
    <loc xlink:type="locator" xlink:label="ifrs-full_NoncurrentLiabilitiesAbstract" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_NoncurrentLiabilitiesAbstract"/>     
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_NoncurrentLiabilitiesAbstract_lbl" xml:lang="en-US">Non-current liabilities</label>    
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_NoncurrentLiabilitiesAbstract" xlink:to="ifrs-full_NoncurrentLiabilitiesAbstract_lbl"/>    
    <loc xlink:type="locator" xlink:label="ifrs-full_LongtermBorrowings" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_LongtermBorrowings"/>   
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_LongtermBorrowings_lbl" xml:lang="en-US">Long-term debt</label>    
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_LongtermBorrowings" xlink:to="ifrs-full_LongtermBorrowings_lbl"/>  
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ifrs-full_LongtermBorrowings_lbl0" xml:lang="en-US">Long-term debt (Note 7)</label> 
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_LongtermBorrowings" xlink:to="ifrs-full_LongtermBorrowings_lbl0"/>   
    <loc xlink:type="locator" xlink:label="ifrs-full_NoncurrentLeaseLiabilities" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_NoncurrentLeaseLiabilities"/>    
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_NoncurrentLeaseLiabilities_lbl" xml:lang="en-US">Lease liabilities and other</label>     
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_NoncurrentLeaseLiabilities" xlink:to="ifrs-full_NoncurrentLeaseLiabilities_lbl"/>   
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ifrs-full_NoncurrentLeaseLiabilities_lbl0" xml:lang="en-US">Non-current portion</label>     
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_NoncurrentLeaseLiabilities" xlink:to="ifrs-full_NoncurrentLeaseLiabilities_lbl0"/>    
    <loc xlink:type="locator" xlink:label="ifrs-full_EquityAbstract" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_EquityAbstract"/>     
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_EquityAbstract_lbl" xml:lang="en-US">Shareholders&#8217; equity</label>  
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_EquityAbstract" xlink:to="ifrs-full_EquityAbstract_lbl"/>    
    <loc xlink:type="locator" xlink:label="ifrs-full_SharePremium" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_SharePremium"/> 
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_SharePremium_lbl" xml:lang="en-US">Contributed surplus</label>   
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_SharePremium" xlink:to="ifrs-full_SharePremium_lbl"/>     
    <loc xlink:type="locator" xlink:label="ifrs-full_RetainedEarnings" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_RetainedEarnings"/>    
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_RetainedEarnings_lbl" xml:lang="en-US">Retained earnings</label>     
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_RetainedEarnings" xlink:to="ifrs-full_RetainedEarnings_lbl"/>   
    <loc xlink:type="locator" xlink:label="ifrs-full_Revenue" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_Revenue"/> 
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_Revenue_lbl" xml:lang="en-US">Oil sales, net of royalties</label> 
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_Revenue" xlink:to="ifrs-full_Revenue_lbl"/>     
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ifrs-full_Revenue_lbl0" xml:lang="en-US">Revenue</label>    
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_Revenue" xlink:to="ifrs-full_Revenue_lbl0"/> 
    <loc xlink:type="locator" xlink:label="ifrs-full_AnalysisOfIncomeAndExpenseAbstract" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_AnalysisOfIncomeAndExpenseAbstract"/>     
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_AnalysisOfIncomeAndExpenseAbstract_lbl" xml:lang="en-US">Expenses</label>    
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_AnalysisOfIncomeAndExpenseAbstract" xlink:to="ifrs-full_AnalysisOfIncomeAndExpenseAbstract_lbl"/>    
    <loc xlink:type="locator" xlink:label="gfr_DiluentExpense" xlink:href="gfr-20251231.xsd#gfr_DiluentExpense"/>    
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gfr_DiluentExpense_lbl" xml:lang="en-US">Diluent expense</label>     
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_DiluentExpense" xlink:to="gfr_DiluentExpense_lbl"/>  
    <loc xlink:type="locator" xlink:label="ifrs-full_SalesAndMarketingExpense" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_SalesAndMarketingExpense"/>     
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_SalesAndMarketingExpense_lbl" xml:lang="en-US">Transportation and marketing</label>    
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_SalesAndMarketingExpense" xlink:to="ifrs-full_SalesAndMarketingExpense_lbl"/>    
    <loc xlink:type="locator" xlink:label="ifrs-full_OtherExpenseByFunction" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_OtherExpenseByFunction"/> 
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_OtherExpenseByFunction_lbl" xml:lang="en-US">Operating expenses</label>  
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_OtherExpenseByFunction" xlink:to="ifrs-full_OtherExpenseByFunction_lbl"/>     
    <loc xlink:type="locator" xlink:label="ifrs-full_GeneralAndAdministrativeExpense" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_GeneralAndAdministrativeExpense"/>    
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_GeneralAndAdministrativeExpense_lbl" xml:lang="en-US">General and administrative</label>    
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_GeneralAndAdministrativeExpense" xlink:to="ifrs-full_GeneralAndAdministrativeExpense_lbl"/>   
    <loc xlink:type="locator" xlink:label="gfr_StockbasedCompensation" xlink:href="gfr-20251231.xsd#gfr_StockbasedCompensation"/>     
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gfr_StockbasedCompensation_lbl" xml:lang="en-US">Stock-based compensation</label>  
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_StockbasedCompensation" xlink:to="gfr_StockbasedCompensation_lbl"/>   
    <loc xlink:type="locator" xlink:label="gfr_FinancingAndInterest" xlink:href="gfr-20251231.xsd#gfr_FinancingAndInterest"/> 
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gfr_FinancingAndInterest_lbl" xml:lang="en-US">Financing and interest</label>   
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_FinancingAndInterest" xlink:to="gfr_FinancingAndInterest_lbl"/>    
    <loc xlink:type="locator" xlink:label="ifrs-full_DepreciationAndAmortisationExpense" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DepreciationAndAmortisationExpense"/>     
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_DepreciationAndAmortisationExpense_lbl" xml:lang="en-US">Depletion and depreciation</label>  
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_DepreciationAndAmortisationExpense" xlink:to="ifrs-full_DepreciationAndAmortisationExpense_lbl"/>    
    <loc xlink:type="locator" xlink:label="gfr_ExplorationAndOtherExpenses" xlink:href="gfr-20251231.xsd#gfr_ExplorationAndOtherExpenses"/>     
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gfr_ExplorationAndOtherExpenses_lbl" xml:lang="en-US">Exploration expenses</label>   
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_ExplorationAndOtherExpenses" xlink:to="gfr_ExplorationAndOtherExpenses_lbl"/>   
    <loc xlink:type="locator" xlink:label="ifrs-full_BasicEarningsLossPerShare" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_BasicEarningsLossPerShare"/>  
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_BasicEarningsLossPerShare_lbl" xml:lang="en-US">Basic (in Dollars per share)</label>     
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_BasicEarningsLossPerShare" xlink:to="ifrs-full_BasicEarningsLossPerShare_lbl"/> 
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ifrs-full_BasicEarningsLossPerShare_lbl0" xml:lang="en-US">Basic $ per share (in Dollars per share)</label>     
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_BasicEarningsLossPerShare" xlink:to="ifrs-full_BasicEarningsLossPerShare_lbl0"/>  
    <loc xlink:type="locator" xlink:label="ifrs-full_DilutedEarningsLossPerShare" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DilutedEarningsLossPerShare"/> 
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_DilutedEarningsLossPerShare_lbl" xml:lang="en-US">Diluted (in Dollars per share)</label>    
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_DilutedEarningsLossPerShare" xlink:to="ifrs-full_DilutedEarningsLossPerShare_lbl"/>     
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ifrs-full_DilutedEarningsLossPerShare_lbl0" xml:lang="en-US">Diluted $ per share (in Dollars per share)</label>    
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_DilutedEarningsLossPerShare" xlink:to="ifrs-full_DilutedEarningsLossPerShare_lbl0"/> 
    <loc xlink:type="locator" xlink:label="gfr_IncreaseDecreaseThroughIssuanceOfSharesOnExerciseOfShareUnits" xlink:href="gfr-20251231.xsd#gfr_IncreaseDecreaseThroughIssuanceOfSharesOnExerciseOfShareUnits"/>   
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gfr_IncreaseDecreaseThroughIssuanceOfSharesOnExerciseOfShareUnits_lbl" xml:lang="en-US">Issuance of shares on exercise of share units</label>  
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_IncreaseDecreaseThroughIssuanceOfSharesOnExerciseOfShareUnits" xlink:to="gfr_IncreaseDecreaseThroughIssuanceOfSharesOnExerciseOfShareUnits_lbl"/> 
    <loc xlink:type="locator" xlink:label="gfr_IncreasedecreaseIssuanceOfSharesOnRightsOffering" xlink:href="gfr-20251231.xsd#gfr_IncreasedecreaseIssuanceOfSharesOnRightsOffering"/>  
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gfr_IncreasedecreaseIssuanceOfSharesOnRightsOffering_lbl" xml:lang="en-US">Issuance of shares on rights offering</label> 
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_IncreasedecreaseIssuanceOfSharesOnRightsOffering" xlink:to="gfr_IncreasedecreaseIssuanceOfSharesOnRightsOffering_lbl"/>     
    <loc xlink:type="locator" xlink:label="gfr_IncreasedecreaseShareIssuanceCostsNetOfTax" xlink:href="gfr-20251231.xsd#gfr_IncreasedecreaseShareIssuanceCostsNetOfTax"/>     
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gfr_IncreasedecreaseShareIssuanceCostsNetOfTax_lbl" xml:lang="en-US">Share issuance costs, net of tax</label>     
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_IncreasedecreaseShareIssuanceCostsNetOfTax" xlink:to="gfr_IncreasedecreaseShareIssuanceCostsNetOfTax_lbl"/>   
    <loc xlink:type="locator" xlink:label="ifrs-full_IncreaseDecreaseThroughSharebasedPaymentTransactions" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_IncreaseDecreaseThroughSharebasedPaymentTransactions"/> 
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_IncreaseDecreaseThroughSharebasedPaymentTransactions_lbl" xml:lang="en-US">Stock-based compensation</label>   
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_IncreaseDecreaseThroughSharebasedPaymentTransactions" xlink:to="ifrs-full_IncreaseDecreaseThroughSharebasedPaymentTransactions_lbl"/>     
    <loc xlink:type="locator" xlink:label="gfr_IncreaseDecreaseThroughIssuanceAndExerciseOfBondWarrants" xlink:href="gfr-20251231.xsd#gfr_IncreaseDecreaseThroughIssuanceAndExerciseOfBondWarrants"/>   
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gfr_IncreaseDecreaseThroughIssuanceAndExerciseOfBondWarrants_lbl" xml:lang="en-US">Issuance of shares on exercise of share units</label>  
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_IncreaseDecreaseThroughIssuanceAndExerciseOfBondWarrants" xlink:to="gfr_IncreaseDecreaseThroughIssuanceAndExerciseOfBondWarrants_lbl"/> 
    <loc xlink:type="locator" xlink:label="ifrs-full_ChangesInEquity" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_ChangesInEquity"/>  
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_ChangesInEquity_lbl" xml:lang="en-US">Total shareholders&#8217; equity</label>    
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_ChangesInEquity" xlink:to="ifrs-full_ChangesInEquity_lbl"/> 
    <loc xlink:type="locator" xlink:label="ifrs-full_CashFlowsFromUsedInOperatingActivitiesAbstract" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_CashFlowsFromUsedInOperatingActivitiesAbstract"/>    
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_CashFlowsFromUsedInOperatingActivitiesAbstract_lbl" xml:lang="en-US">Operating activities</label>   
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_CashFlowsFromUsedInOperatingActivitiesAbstract" xlink:to="ifrs-full_CashFlowsFromUsedInOperatingActivitiesAbstract_lbl"/>   
    <loc xlink:type="locator" xlink:label="ifrs-full_AdjustmentsForReconcileProfitLossAbstract" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_AdjustmentsForReconcileProfitLossAbstract"/>    
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_AdjustmentsForReconcileProfitLossAbstract_lbl" xml:lang="en-US">Items not affecting cash:</label>   
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_AdjustmentsForReconcileProfitLossAbstract" xlink:to="ifrs-full_AdjustmentsForReconcileProfitLossAbstract_lbl"/>   
    <loc xlink:type="locator" xlink:label="ifrs-full_AdjustmentsForIncomeTaxExpense" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_AdjustmentsForIncomeTaxExpense"/>  
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_AdjustmentsForIncomeTaxExpense_lbl" xml:lang="en-US">Income tax expense (recovery)</label> 
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_AdjustmentsForIncomeTaxExpense" xlink:to="ifrs-full_AdjustmentsForIncomeTaxExpense_lbl"/> 
    <loc xlink:type="locator" xlink:label="gfr_UnrealizedgainLossOnRiskManagementContracts" xlink:href="gfr-20251231.xsd#gfr_UnrealizedgainLossOnRiskManagementContracts"/>  
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gfr_UnrealizedgainLossOnRiskManagementContracts_lbl" xml:lang="en-US">Unrealized gain on risk management contracts</label>   
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_UnrealizedgainLossOnRiskManagementContracts" xlink:to="gfr_UnrealizedgainLossOnRiskManagementContracts_lbl"/>     
    <loc xlink:type="locator" xlink:label="ifrs-full_AdjustmentsForDepreciationExpense" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_AdjustmentsForDepreciationExpense"/>   
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_AdjustmentsForDepreciationExpense_lbl" xml:lang="en-US">Depletion and depreciation</label> 
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_AdjustmentsForDepreciationExpense" xlink:to="ifrs-full_AdjustmentsForDepreciationExpense_lbl"/>  
    <loc xlink:type="locator" xlink:label="ifrs-full_AdjustmentsForSharebasedPayments" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_AdjustmentsForSharebasedPayments"/> 
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_AdjustmentsForSharebasedPayments_lbl" xml:lang="en-US">Stock-based compensation</label>   
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_AdjustmentsForSharebasedPayments" xlink:to="ifrs-full_AdjustmentsForSharebasedPayments_lbl"/>     
    <loc xlink:type="locator" xlink:label="ifrs-full_AdjustmentsForFinanceCosts" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_AdjustmentsForFinanceCosts"/>    
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_AdjustmentsForFinanceCosts_lbl" xml:lang="en-US">Financing expense</label>     
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_AdjustmentsForFinanceCosts" xlink:to="ifrs-full_AdjustmentsForFinanceCosts_lbl"/>   
    <loc xlink:type="locator" xlink:label="ifrs-full_AdjustmentsForUnrealisedForeignExchangeLossesGains" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_AdjustmentsForUnrealisedForeignExchangeLossesGains"/>  
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_AdjustmentsForUnrealisedForeignExchangeLossesGains_lbl" xml:lang="en-US">Foreign exchange (gain) loss</label>     
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_AdjustmentsForUnrealisedForeignExchangeLossesGains" xlink:to="ifrs-full_AdjustmentsForUnrealisedForeignExchangeLossesGains_lbl"/> 
    <loc xlink:type="locator" xlink:label="gfr_AdjustmentsForOtherIncome" xlink:href="gfr-20251231.xsd#gfr_AdjustmentsForOtherIncome"/> 
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gfr_AdjustmentsForOtherIncome_lbl" xml:lang="en-US">Other income</label>   
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_AdjustmentsForOtherIncome" xlink:to="gfr_AdjustmentsForOtherIncome_lbl"/>    
    <loc xlink:type="locator" xlink:label="ifrs-full_OtherAdjustmentsForNoncashItems" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_OtherAdjustmentsForNoncashItems"/>    
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_OtherAdjustmentsForNoncashItems_lbl" xml:lang="en-US">Decommissioning costs</label>    
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_OtherAdjustmentsForNoncashItems" xlink:to="ifrs-full_OtherAdjustmentsForNoncashItems_lbl"/>   
    <loc xlink:type="locator" xlink:label="ifrs-full_CashFlowsFromUsedInFinancingActivitiesAbstract" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_CashFlowsFromUsedInFinancingActivitiesAbstract"/>    
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_CashFlowsFromUsedInFinancingActivitiesAbstract_lbl" xml:lang="en-US">Financing activities</label>   
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_CashFlowsFromUsedInFinancingActivitiesAbstract" xlink:to="ifrs-full_CashFlowsFromUsedInFinancingActivitiesAbstract_lbl"/>   
    <loc xlink:type="locator" xlink:label="ifrs-full_ProceedsFromIssuingShares" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_ProceedsFromIssuingShares"/>  
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_ProceedsFromIssuingShares_lbl" xml:lang="en-US">Proceeds on issuance of common shares</label>    
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_ProceedsFromIssuingShares" xlink:to="ifrs-full_ProceedsFromIssuingShares_lbl"/> 
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ifrs-full_ProceedsFromIssuingShares_lbl0" xml:lang="en-US">Issued on rights offering, Amount</label>   
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_ProceedsFromIssuingShares" xlink:to="ifrs-full_ProceedsFromIssuingShares_lbl0"/>  
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/netLabel" xlink:label="ifrs-full_ProceedsFromIssuingShares_lbl1" xml:lang="en-US">Gross proceeds</label>     
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_ProceedsFromIssuingShares" xlink:to="ifrs-full_ProceedsFromIssuingShares_lbl1"/>  
    <loc xlink:type="locator" xlink:label="ifrs-full_CashFlowsFromUsedInInvestingActivitiesAbstract" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_CashFlowsFromUsedInInvestingActivitiesAbstract"/>    
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_CashFlowsFromUsedInInvestingActivitiesAbstract_lbl" xml:lang="en-US">Investing activities</label>   
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_CashFlowsFromUsedInInvestingActivitiesAbstract" xlink:to="ifrs-full_CashFlowsFromUsedInInvestingActivitiesAbstract_lbl"/>   
    <loc xlink:type="locator" xlink:label="ifrs-full_OtherInflowsOutflowsOfCashClassifiedAsInvestingActivities" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_OtherInflowsOutflowsOfCashClassifiedAsInvestingActivities"/> 
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_OtherInflowsOutflowsOfCashClassifiedAsInvestingActivities_lbl" xml:lang="en-US">Change in non-cash working capital (accrued additions to PP&amp;E)</label>     
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_OtherInflowsOutflowsOfCashClassifiedAsInvestingActivities" xlink:to="ifrs-full_OtherInflowsOutflowsOfCashClassifiedAsInvestingActivities_lbl"/>     
    <loc xlink:type="locator" xlink:label="ifrs-full_EffectOfExchangeRateChangesOnCashAndCashEquivalents" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_EffectOfExchangeRateChangesOnCashAndCashEquivalents"/>    
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_EffectOfExchangeRateChangesOnCashAndCashEquivalents_lbl" xml:lang="en-US">Exchange rate impact on cash and cash equivalents held in foreign currency</label>  
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_EffectOfExchangeRateChangesOnCashAndCashEquivalents" xlink:to="ifrs-full_EffectOfExchangeRateChangesOnCashAndCashEquivalents_lbl"/>   
    <loc xlink:type="locator" xlink:label="gfr_GainlossOnRiskManagementContracts" xlink:href="gfr-20251231.xsd#gfr_GainlossOnRiskManagementContracts"/>  
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:label="gfr_GainlossOnRiskManagementContracts_lbl" xml:lang="en-US">Gain (loss) on risk management contracts</label> 
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_GainlossOnRiskManagementContracts" xlink:to="gfr_GainlossOnRiskManagementContracts_lbl"/>     
    <loc xlink:type="locator" xlink:label="ifrs-full_OtherOperatingIncomeExpense" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_OtherOperatingIncomeExpense"/> 
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:label="ifrs-full_OtherOperatingIncomeExpense_lbl" xml:lang="en-US">Other income</label>   
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_OtherOperatingIncomeExpense" xlink:to="ifrs-full_OtherOperatingIncomeExpense_lbl"/>     
    <loc xlink:type="locator" xlink:label="ifrs-full_GainsLossesOnChangeInFairValueOfDerivatives" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_GainsLossesOnChangeInFairValueOfDerivatives"/>   
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:label="ifrs-full_GainsLossesOnChangeInFairValueOfDerivatives_lbl" xml:lang="en-US">Gain on revaluation of warrants</label>   
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_GainsLossesOnChangeInFairValueOfDerivatives" xlink:to="ifrs-full_GainsLossesOnChangeInFairValueOfDerivatives_lbl"/>  
    <loc xlink:type="locator" xlink:label="ifrs-full_GainsLossesOnExchangeDifferencesOnTranslationBeforeTax" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_GainsLossesOnExchangeDifferencesOnTranslationBeforeTax"/>     
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:label="ifrs-full_GainsLossesOnExchangeDifferencesOnTranslationBeforeTax_lbl" xml:lang="en-US">Foreign exchange (gain) loss</label> 
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_GainsLossesOnExchangeDifferencesOnTranslationBeforeTax" xlink:to="ifrs-full_GainsLossesOnExchangeDifferencesOnTranslationBeforeTax_lbl"/>    
    <loc xlink:type="locator" xlink:label="ifrs-full_IncomeTaxExpenseContinuingOperations" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_IncomeTaxExpenseContinuingOperations"/>    
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:label="ifrs-full_IncomeTaxExpenseContinuingOperations_lbl" xml:lang="en-US">Income tax (expense) recovery</label>    
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_IncomeTaxExpenseContinuingOperations" xlink:to="ifrs-full_IncomeTaxExpenseContinuingOperations_lbl"/>   
    <loc xlink:type="locator" xlink:label="ifrs-full_AdjustmentsForGainsLossesOnChangeInFairValueOfDerivatives" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_AdjustmentsForGainsLossesOnChangeInFairValueOfDerivatives"/> 
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:label="ifrs-full_AdjustmentsForGainsLossesOnChangeInFairValueOfDerivatives_lbl" xml:lang="en-US">Gain on revaluation of warrants</label>  
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_AdjustmentsForGainsLossesOnChangeInFairValueOfDerivatives" xlink:to="ifrs-full_AdjustmentsForGainsLossesOnChangeInFairValueOfDerivatives_lbl"/>     
    <loc xlink:type="locator" xlink:label="ifrs-full_IncreaseDecreaseInWorkingCapital" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_IncreaseDecreaseInWorkingCapital"/> 
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:label="ifrs-full_IncreaseDecreaseInWorkingCapital_lbl" xml:lang="en-US">Change in non-cash working capital</label>     
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_IncreaseDecreaseInWorkingCapital" xlink:to="ifrs-full_IncreaseDecreaseInWorkingCapital_lbl"/>     
    <loc xlink:type="locator" xlink:label="ifrs-full_RepaymentsOfBorrowingsClassifiedAsFinancingActivities" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_RepaymentsOfBorrowingsClassifiedAsFinancingActivities"/>   
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:label="ifrs-full_RepaymentsOfBorrowingsClassifiedAsFinancingActivities_lbl" xml:lang="en-US">Repayment of long-term debt</label>    
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_RepaymentsOfBorrowingsClassifiedAsFinancingActivities" xlink:to="ifrs-full_RepaymentsOfBorrowingsClassifiedAsFinancingActivities_lbl"/>  
    <loc xlink:type="locator" xlink:label="gfr_DebtRedemptionPremiumFinancingActivities" xlink:href="gfr-20251231.xsd#gfr_DebtRedemptionPremiumFinancingActivities"/> 
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:label="gfr_DebtRedemptionPremiumFinancingActivities_lbl" xml:lang="en-US">Debt redemption premium</label> 
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_DebtRedemptionPremiumFinancingActivities" xlink:to="gfr_DebtRedemptionPremiumFinancingActivities_lbl"/>    
    <loc xlink:type="locator" xlink:label="ifrs-full_PaymentsForShareIssueCosts" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_PaymentsForShareIssueCosts"/>    
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:label="ifrs-full_PaymentsForShareIssueCosts_lbl" xml:lang="en-US">Share issuance costs</label>     
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_PaymentsForShareIssueCosts" xlink:to="ifrs-full_PaymentsForShareIssueCosts_lbl"/>   
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_PaymentsForShareIssueCosts_lbl0" xml:lang="en-US">Share issuance costs</label>    
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_PaymentsForShareIssueCosts" xlink:to="ifrs-full_PaymentsForShareIssueCosts_lbl0"/>    
    <loc xlink:type="locator" xlink:label="ifrs-full_PaymentsOfLeaseLiabilitiesClassifiedAsFinancingActivities" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_PaymentsOfLeaseLiabilitiesClassifiedAsFinancingActivities"/> 
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:label="ifrs-full_PaymentsOfLeaseLiabilitiesClassifiedAsFinancingActivities_lbl" xml:lang="en-US">Payment of lease liabilities</label>    
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_PaymentsOfLeaseLiabilitiesClassifiedAsFinancingActivities" xlink:to="ifrs-full_PaymentsOfLeaseLiabilitiesClassifiedAsFinancingActivities_lbl"/>     
    <loc xlink:type="locator" xlink:label="ifrs-full_PurchaseOfPropertyPlantAndEquipmentClassifiedAsInvestingActivities" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_PurchaseOfPropertyPlantAndEquipmentClassifiedAsInvestingActivities"/>    
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:label="ifrs-full_PurchaseOfPropertyPlantAndEquipmentClassifiedAsInvestingActivities_lbl" xml:lang="en-US">Property, plant and equipment expenditures</label>  
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_PurchaseOfPropertyPlantAndEquipmentClassifiedAsInvestingActivities" xlink:to="ifrs-full_PurchaseOfPropertyPlantAndEquipmentClassifiedAsInvestingActivities_lbl"/>   
    <loc xlink:type="locator" xlink:label="ifrs-full_OtherCashPaymentsToAcquireInterestsInJointVenturesClassifiedAsInvestingActivities" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_OtherCashPaymentsToAcquireInterestsInJointVenturesClassifiedAsInvestingActivities"/>    
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:label="ifrs-full_OtherCashPaymentsToAcquireInterestsInJointVenturesClassifiedAsInvestingActivities_lbl" xml:lang="en-US">Acquisitions</label>  
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_OtherCashPaymentsToAcquireInterestsInJointVenturesClassifiedAsInvestingActivities" xlink:to="ifrs-full_OtherCashPaymentsToAcquireInterestsInJointVenturesClassifiedAsInvestingActivities_lbl"/>   
    <loc xlink:type="locator" xlink:label="dei_BusinessContactMember" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_BusinessContactMember"/>    
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="dei_BusinessContactMember_lbl" xml:lang="en-US">Business Contact</label>   
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="dei_BusinessContactMember" xlink:to="dei_BusinessContactMember_lbl"/> 
    <loc xlink:type="locator" xlink:label="gfr_OilSalesMember" xlink:href="gfr-20251231.xsd#gfr_OilSalesMember"/>    
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gfr_OilSalesMember_lbl" xml:lang="en-US">Oil sales</label>    
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_OilSalesMember" xlink:to="gfr_OilSalesMember_lbl"/>  
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="gfr_OilSalesMember_lbl0" xml:lang="en-US">Oil sales [Member]</label> 
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_OilSalesMember" xlink:to="gfr_OilSalesMember_lbl0"/>   
    <loc xlink:type="locator" xlink:label="gfr_RoyaltiesMember" xlink:href="gfr-20251231.xsd#gfr_RoyaltiesMember"/> 
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gfr_RoyaltiesMember_lbl" xml:lang="en-US">Royalties</label>     
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_RoyaltiesMember" xlink:to="gfr_RoyaltiesMember_lbl"/>    
    <loc xlink:type="locator" xlink:label="ifrs-full_OrdinarySharesMember" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_OrdinarySharesMember"/>  
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_OrdinarySharesMember_lbl" xml:lang="en-US">Share capital</label>     
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_OrdinarySharesMember" xlink:to="ifrs-full_OrdinarySharesMember_lbl"/> 
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ifrs-full_OrdinarySharesMember_lbl0" xml:lang="en-US">Common Shares [Member]</label>  
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_OrdinarySharesMember" xlink:to="ifrs-full_OrdinarySharesMember_lbl0"/>  
    <loc xlink:type="locator" xlink:label="gfr_ContributedSurplusMember" xlink:href="gfr-20251231.xsd#gfr_ContributedSurplusMember"/>    
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gfr_ContributedSurplusMember_lbl" xml:lang="en-US">Contributed surplus</label>    
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_ContributedSurplusMember" xlink:to="gfr_ContributedSurplusMember_lbl"/>  
    <loc xlink:type="locator" xlink:label="ifrs-full_RetainedEarningsMember" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_RetainedEarningsMember"/> 
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_RetainedEarningsMember_lbl" xml:lang="en-US">Retained earnings</label> 
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_RetainedEarningsMember" xlink:to="ifrs-full_RetainedEarningsMember_lbl"/>     
    <loc xlink:type="locator" xlink:label="ifrs-full_DisclosureOfGeneralInformationAboutFinancialStatementsExplanatory" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DisclosureOfGeneralInformationAboutFinancialStatementsExplanatory"/>  
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_DisclosureOfGeneralInformationAboutFinancialStatementsExplanatory_lbl" xml:lang="en-US">CORPORATE INFORMATION</label>   
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_DisclosureOfGeneralInformationAboutFinancialStatementsExplanatory" xlink:to="ifrs-full_DisclosureOfGeneralInformationAboutFinancialStatementsExplanatory_lbl"/> 
    <loc xlink:type="locator" xlink:label="ifrs-full_DisclosureOfBasisOfPreparationOfFinancialStatementsExplanatory" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DisclosureOfBasisOfPreparationOfFinancialStatementsExplanatory"/> 
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_DisclosureOfBasisOfPreparationOfFinancialStatementsExplanatory_lbl" xml:lang="en-US">BASIS OF PRESENTATION AND STATEMENT OF COMPLIANCE</label>   
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_DisclosureOfBasisOfPreparationOfFinancialStatementsExplanatory" xlink:to="ifrs-full_DisclosureOfBasisOfPreparationOfFinancialStatementsExplanatory_lbl"/>     
    <loc xlink:type="locator" xlink:label="ifrs-full_DisclosureOfMaterialAccountingPolicyInformationExplanatory" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DisclosureOfMaterialAccountingPolicyInformationExplanatory"/>   
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_DisclosureOfMaterialAccountingPolicyInformationExplanatory_lbl" xml:lang="en-US">MATERIAL ACCOUNTING POLICIES</label>   
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_DisclosureOfMaterialAccountingPolicyInformationExplanatory" xlink:to="ifrs-full_DisclosureOfMaterialAccountingPolicyInformationExplanatory_lbl"/>  
    <loc xlink:type="locator" xlink:label="srt_ScheduleOfCondensedBalanceSheetTableTextBlock" xlink:href="https://xbrl.fasb.org/srt/2025/elts/srt-2025.xsd#srt_ScheduleOfCondensedBalanceSheetTableTextBlock"/>   
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="srt_ScheduleOfCondensedBalanceSheetTableTextBlock_lbl" xml:lang="en-US">Schedule of Consolidated Balance Sheets and the Corresponding Hierarchy Rating for their Derived Fair Value Estimates</label>   
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="srt_ScheduleOfCondensedBalanceSheetTableTextBlock" xlink:to="srt_ScheduleOfCondensedBalanceSheetTableTextBlock_lbl"/>    
    <loc xlink:type="locator" xlink:label="gfr_FinancialInstrumentClassification" xlink:href="gfr-20251231.xsd#gfr_FinancialInstrumentClassification"/>  
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gfr_FinancialInstrumentClassification_lbl" xml:lang="en-US">Classification</label>   
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_FinancialInstrumentClassification" xlink:to="gfr_FinancialInstrumentClassification_lbl"/>     
    <loc xlink:type="locator" xlink:label="ifrs-full_DisclosureOfInventoriesExplanatory" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DisclosureOfInventoriesExplanatory"/>     
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_DisclosureOfInventoriesExplanatory_lbl" xml:lang="en-US">INVENTORIES</label>  
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_DisclosureOfInventoriesExplanatory" xlink:to="ifrs-full_DisclosureOfInventoriesExplanatory_lbl"/>    
    <loc xlink:type="locator" xlink:label="gfr_DisclosureOfInventoriesTableTextBlock" xlink:href="gfr-20251231.xsd#gfr_DisclosureOfInventoriesTableTextBlock"/>     
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gfr_DisclosureOfInventoriesTableTextBlock_lbl" xml:lang="en-US">Schedule of Inventories</label> 
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_DisclosureOfInventoriesTableTextBlock" xlink:to="gfr_DisclosureOfInventoriesTableTextBlock_lbl"/>   
    <loc xlink:type="locator" xlink:label="gfr_OilInventories" xlink:href="gfr-20251231.xsd#gfr_OilInventories"/>    
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gfr_OilInventories_lbl" xml:lang="en-US">Oil inventories</label>     
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_OilInventories" xlink:to="gfr_OilInventories_lbl"/>  
    <loc xlink:type="locator" xlink:label="ifrs-full_CurrentRawMaterialsAndCurrentProductionSupplies" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_CurrentRawMaterialsAndCurrentProductionSupplies"/> 
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_CurrentRawMaterialsAndCurrentProductionSupplies_lbl" xml:lang="en-US">Warehouse materials and supplies</label> 
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_CurrentRawMaterialsAndCurrentProductionSupplies" xlink:to="ifrs-full_CurrentRawMaterialsAndCurrentProductionSupplies_lbl"/>     
    <loc xlink:type="locator" xlink:label="gfr_EmissionsCreditsHeldForUse" xlink:href="gfr-20251231.xsd#gfr_EmissionsCreditsHeldForUse"/>   
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gfr_EmissionsCreditsHeldForUse_lbl" xml:lang="en-US">Emissions credits held for use</label>  
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_EmissionsCreditsHeldForUse" xlink:to="gfr_EmissionsCreditsHeldForUse_lbl"/> 
    <loc xlink:type="locator" xlink:label="ifrs-full_DisclosureOfPropertyPlantAndEquipmentExplanatory" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DisclosureOfPropertyPlantAndEquipmentExplanatory"/>   
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_DisclosureOfPropertyPlantAndEquipmentExplanatory_lbl" xml:lang="en-US">PROPERTY, PLANT AND EQUIPMENT (&#8220;PP&amp;E&#8221;)</label>    
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_DisclosureOfPropertyPlantAndEquipmentExplanatory" xlink:to="ifrs-full_DisclosureOfPropertyPlantAndEquipmentExplanatory_lbl"/>  
    <loc xlink:type="locator" xlink:label="ifrs-full_DisclosureOfDetailedInformationAboutPropertyPlantAndEquipmentExplanatory" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DisclosureOfDetailedInformationAboutPropertyPlantAndEquipmentExplanatory"/> 
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_DisclosureOfDetailedInformationAboutPropertyPlantAndEquipmentExplanatory_lbl" xml:lang="en-US">Schedule of Property, Plant and Equipment (&#8220;PP&amp;E&#8221;)</label>     
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_DisclosureOfDetailedInformationAboutPropertyPlantAndEquipmentExplanatory" xlink:to="ifrs-full_DisclosureOfDetailedInformationAboutPropertyPlantAndEquipmentExplanatory_lbl"/>     
    <loc xlink:type="locator" xlink:label="gfr_CostAbstract" xlink:href="gfr-20251231.xsd#gfr_CostAbstract"/>     
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gfr_CostAbstract_lbl" xml:lang="en-US">Cost</label>  
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_CostAbstract" xlink:to="gfr_CostAbstract_lbl"/>   
    <loc xlink:type="locator" xlink:label="ifrs-full_AdditionsOtherThanThroughBusinessCombinationsPropertyPlantAndEquipment" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_AdditionsOtherThanThroughBusinessCombinationsPropertyPlantAndEquipment"/>  
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_AdditionsOtherThanThroughBusinessCombinationsPropertyPlantAndEquipment_lbl" xml:lang="en-US">Additions</label> 
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_AdditionsOtherThanThroughBusinessCombinationsPropertyPlantAndEquipment" xlink:to="ifrs-full_AdditionsOtherThanThroughBusinessCombinationsPropertyPlantAndEquipment_lbl"/> 
    <loc xlink:type="locator" xlink:label="ifrs-full_AcquisitionsThroughBusinessCombinationsPropertyPlantAndEquipmentIncludingRightofuseAssets" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_AcquisitionsThroughBusinessCombinationsPropertyPlantAndEquipmentIncludingRightofuseAssets"/>     
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_AcquisitionsThroughBusinessCombinationsPropertyPlantAndEquipmentIncludingRightofuseAssets_lbl" xml:lang="en-US">Acquisitions</label>   
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_AcquisitionsThroughBusinessCombinationsPropertyPlantAndEquipmentIncludingRightofuseAssets" xlink:to="ifrs-full_AcquisitionsThroughBusinessCombinationsPropertyPlantAndEquipmentIncludingRightofuseAssets_lbl"/>    
    <loc xlink:type="locator" xlink:label="ifrs-full_IncreaseDecreaseThroughTransfersAndOtherChangesPropertyPlantAndEquipmentIncludingRightofuseAssets" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_IncreaseDecreaseThroughTransfersAndOtherChangesPropertyPlantAndEquipmentIncludingRightofuseAssets"/> 
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_IncreaseDecreaseThroughTransfersAndOtherChangesPropertyPlantAndEquipmentIncludingRightofuseAssets_lbl" xml:lang="en-US">Transfers of right-of-use assets</label> 
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_IncreaseDecreaseThroughTransfersAndOtherChangesPropertyPlantAndEquipmentIncludingRightofuseAssets" xlink:to="ifrs-full_IncreaseDecreaseThroughTransfersAndOtherChangesPropertyPlantAndEquipmentIncludingRightofuseAssets_lbl"/>     
    <loc xlink:type="locator" xlink:label="gfr_ChangeInDecommissioningLiabilities" xlink:href="gfr-20251231.xsd#gfr_ChangeInDecommissioningLiabilities"/>    
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gfr_ChangeInDecommissioningLiabilities_lbl" xml:lang="en-US">Change in decommissioning liabilities</label>  
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_ChangeInDecommissioningLiabilities" xlink:to="gfr_ChangeInDecommissioningLiabilities_lbl"/>  
    <loc xlink:type="locator" xlink:label="gfr_RemeasurementOfRightofuseAssets" xlink:href="gfr-20251231.xsd#gfr_RemeasurementOfRightofuseAssets"/>   
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gfr_RemeasurementOfRightofuseAssets_lbl" xml:lang="en-US">Remeasurement of right-of-use assets</label>   
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_RemeasurementOfRightofuseAssets" xlink:to="gfr_RemeasurementOfRightofuseAssets_lbl"/> 
    <loc xlink:type="locator" xlink:label="gfr_AccumulatedDepletionDepreciationAndAmortizationAbstract" xlink:href="gfr-20251231.xsd#gfr_AccumulatedDepletionDepreciationAndAmortizationAbstract"/> 
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gfr_AccumulatedDepletionDepreciationAndAmortizationAbstract_lbl" xml:lang="en-US">Accumulated Depletion, Depreciation and Amortization</label>   
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_AccumulatedDepletionDepreciationAndAmortizationAbstract" xlink:to="gfr_AccumulatedDepletionDepreciationAndAmortizationAbstract_lbl"/>    
    <loc xlink:type="locator" xlink:label="ifrs-full_DepreciationPropertyPlantAndEquipmentIncludingRightofuseAssets" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DepreciationPropertyPlantAndEquipmentIncludingRightofuseAssets"/> 
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_DepreciationPropertyPlantAndEquipmentIncludingRightofuseAssets_lbl" xml:lang="en-US">Depletion and depreciation</label>     
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_DepreciationPropertyPlantAndEquipmentIncludingRightofuseAssets" xlink:to="ifrs-full_DepreciationPropertyPlantAndEquipmentIncludingRightofuseAssets_lbl"/>     
    <loc xlink:type="locator" xlink:label="gfr_NetBookValueAbstract" xlink:href="gfr-20251231.xsd#gfr_NetBookValueAbstract"/> 
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gfr_NetBookValueAbstract_lbl" xml:lang="en-US">Net Book Value</label>     
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_NetBookValueAbstract" xlink:to="gfr_NetBookValueAbstract_lbl"/>    
    <loc xlink:type="locator" xlink:label="ifrs-full_DisclosureOfIncomeTaxExplanatory" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DisclosureOfIncomeTaxExplanatory"/> 
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_DisclosureOfIncomeTaxExplanatory_lbl" xml:lang="en-US">INCOME TAXES</label> 
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_DisclosureOfIncomeTaxExplanatory" xlink:to="ifrs-full_DisclosureOfIncomeTaxExplanatory_lbl"/>     
    <loc xlink:type="locator" xlink:label="gfr_DisclosureOfIncomeTaxExpenseTextBlock" xlink:href="gfr-20251231.xsd#gfr_DisclosureOfIncomeTaxExpenseTextBlock"/>     
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gfr_DisclosureOfIncomeTaxExpenseTextBlock_lbl" xml:lang="en-US">Schedule of Income Tax Expense</label>   
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_DisclosureOfIncomeTaxExpenseTextBlock" xlink:to="gfr_DisclosureOfIncomeTaxExpenseTextBlock_lbl"/>   
    <loc xlink:type="locator" xlink:label="gfr_ExpectedStatutoryIncomeTaxRate" xlink:href="gfr-20251231.xsd#gfr_ExpectedStatutoryIncomeTaxRate"/> 
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gfr_ExpectedStatutoryIncomeTaxRate_lbl" xml:lang="en-US">Expected statutory income tax rate</label>     
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_ExpectedStatutoryIncomeTaxRate" xlink:to="gfr_ExpectedStatutoryIncomeTaxRate_lbl"/>    
    <loc xlink:type="locator" xlink:label="ifrs-full_AdjustmentsForCurrentTaxOfPriorPeriod" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_AdjustmentsForCurrentTaxOfPriorPeriod"/> 
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_AdjustmentsForCurrentTaxOfPriorPeriod_lbl" xml:lang="en-US">Expected income tax expense</label> 
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_AdjustmentsForCurrentTaxOfPriorPeriod" xlink:to="ifrs-full_AdjustmentsForCurrentTaxOfPriorPeriod_lbl"/>     
    <loc xlink:type="locator" xlink:label="gfr_ChangeInUnrecognizedDeferredTaxAsset" xlink:href="gfr-20251231.xsd#gfr_ChangeInUnrecognizedDeferredTaxAsset"/>   
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gfr_ChangeInUnrecognizedDeferredTaxAsset_lbl" xml:lang="en-US">Change in unrecognized deferred income tax asset</label>     
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_ChangeInUnrecognizedDeferredTaxAsset" xlink:to="gfr_ChangeInUnrecognizedDeferredTaxAsset_lbl"/> 
    <loc xlink:type="locator" xlink:label="ifrs-full_DisclosureOfDeferredTaxesExplanatory" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DisclosureOfDeferredTaxesExplanatory"/>    
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_DisclosureOfDeferredTaxesExplanatory_lbl" xml:lang="en-US">Schedule of Deferred Tax Asset (Liability)</label>     
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_DisclosureOfDeferredTaxesExplanatory" xlink:to="ifrs-full_DisclosureOfDeferredTaxesExplanatory_lbl"/>   
    <loc xlink:type="locator" xlink:label="ifrs-full_NetDeferredTaxAssetsAndLiabilitiesAbstract" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_NetDeferredTaxAssetsAndLiabilitiesAbstract"/> 
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_NetDeferredTaxAssetsAndLiabilitiesAbstract_lbl" xml:lang="en-US">Deferred tax asset (liability) related to:</label> 
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_NetDeferredTaxAssetsAndLiabilitiesAbstract" xlink:to="ifrs-full_NetDeferredTaxAssetsAndLiabilitiesAbstract_lbl"/>     
    <loc xlink:type="locator" xlink:label="gfr_DeferredTaxAssetLiabilityRiskManagementContracts" xlink:href="gfr-20251231.xsd#gfr_DeferredTaxAssetLiabilityRiskManagementContracts"/>  
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gfr_DeferredTaxAssetLiabilityRiskManagementContracts_lbl" xml:lang="en-US">Risk management contracts</label>    
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_DeferredTaxAssetLiabilityRiskManagementContracts" xlink:to="gfr_DeferredTaxAssetLiabilityRiskManagementContracts_lbl"/>     
    <loc xlink:type="locator" xlink:label="gfr_DeferredTaxAssetsShareIssuanceCosts" xlink:href="gfr-20251231.xsd#gfr_DeferredTaxAssetsShareIssuanceCosts"/> 
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gfr_DeferredTaxAssetsShareIssuanceCosts_lbl" xml:lang="en-US">Share issuance costs</label> 
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_DeferredTaxAssetsShareIssuanceCosts" xlink:to="gfr_DeferredTaxAssetsShareIssuanceCosts_lbl"/>    
    <loc xlink:type="locator" xlink:label="ifrs-full_ChangesInDeferredTaxLiabilityAssetAbstract" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_ChangesInDeferredTaxLiabilityAssetAbstract"/> 
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_ChangesInDeferredTaxLiabilityAssetAbstract_lbl" xml:lang="en-US">Change in tax asset recognized as:</label>   
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_ChangesInDeferredTaxLiabilityAssetAbstract" xlink:to="ifrs-full_ChangesInDeferredTaxLiabilityAssetAbstract_lbl"/>     
    <loc xlink:type="locator" xlink:label="ifrs-full_DeferredTaxLiabilityAsset" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DeferredTaxLiabilityAsset"/>  
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_DeferredTaxLiabilityAsset_lbl" xml:lang="en-US">Deferred tax expense (recovery)</label>   
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_DeferredTaxLiabilityAsset" xlink:to="ifrs-full_DeferredTaxLiabilityAsset_lbl"/> 
    <loc xlink:type="locator" xlink:label="gfr_ChangeinTaxAssetRecognizedShareIssuanceCostsEquity" xlink:href="gfr-20251231.xsd#gfr_ChangeinTaxAssetRecognizedShareIssuanceCostsEquity"/> 
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gfr_ChangeinTaxAssetRecognizedShareIssuanceCostsEquity_lbl" xml:lang="en-US">Share issuance costs - equity</label>     
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_ChangeinTaxAssetRecognizedShareIssuanceCostsEquity" xlink:to="gfr_ChangeinTaxAssetRecognizedShareIssuanceCostsEquity_lbl"/>    
    <loc xlink:type="locator" xlink:label="ifrs-full_DisclosureOfTaxReceivablesAndPayablesExplanatory" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DisclosureOfTaxReceivablesAndPayablesExplanatory"/>   
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_DisclosureOfTaxReceivablesAndPayablesExplanatory_lbl" xml:lang="en-US">Schedule of Taxable Income</label> 
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_DisclosureOfTaxReceivablesAndPayablesExplanatory" xlink:to="ifrs-full_DisclosureOfTaxReceivablesAndPayablesExplanatory_lbl"/>  
    <loc xlink:type="locator" xlink:label="ifrs-full_ApplicableTaxRate" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_ApplicableTaxRate"/> 
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_ApplicableTaxRate_lbl" xml:lang="en-US">Rate of Utilization, Percentage</label>     
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_ApplicableTaxRate" xlink:to="ifrs-full_ApplicableTaxRate_lbl"/>     
    <loc xlink:type="locator" xlink:label="ifrs-full_CurrentTaxExpenseIncome" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_CurrentTaxExpenseIncome"/>   
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_CurrentTaxExpenseIncome_lbl" xml:lang="en-US">Total federal income tax pools, Amount</label>   
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_CurrentTaxExpenseIncome" xlink:to="ifrs-full_CurrentTaxExpenseIncome_lbl"/>  
    <loc xlink:type="locator" xlink:label="gfr_CombinedFederalAndProvincialIncomeTaxPools" xlink:href="gfr-20251231.xsd#gfr_CombinedFederalAndProvincialIncomeTaxPools"/>     
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gfr_CombinedFederalAndProvincialIncomeTaxPools_lbl" xml:lang="en-US">Combined federal and provincial income tax pools</label> 
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_CombinedFederalAndProvincialIncomeTaxPools" xlink:to="gfr_CombinedFederalAndProvincialIncomeTaxPools_lbl"/>   
    <loc xlink:type="locator" xlink:label="ifrs-full_DisclosureOfBorrowingsExplanatory" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DisclosureOfBorrowingsExplanatory"/>   
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_DisclosureOfBorrowingsExplanatory_lbl" xml:lang="en-US">LONG-TERM DEBT</label>    
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_DisclosureOfBorrowingsExplanatory" xlink:to="ifrs-full_DisclosureOfBorrowingsExplanatory_lbl"/>  
    <loc xlink:type="locator" xlink:label="gfr_DisclosureOfMinimumHedgingRequirementsTableTextBlock" xlink:href="gfr-20251231.xsd#gfr_DisclosureOfMinimumHedgingRequirementsTableTextBlock"/>     
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gfr_DisclosureOfMinimumHedgingRequirementsTableTextBlock_lbl" xml:lang="en-US">Schedule of Senior Secured Notes</label>     
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_DisclosureOfMinimumHedgingRequirementsTableTextBlock" xlink:to="gfr_DisclosureOfMinimumHedgingRequirementsTableTextBlock_lbl"/>   
    <loc xlink:type="locator" xlink:label="gfr_PrincipalAmountOfRedemptionPayments" xlink:href="gfr-20251231.xsd#gfr_PrincipalAmountOfRedemptionPayments"/> 
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gfr_PrincipalAmountOfRedemptionPayments_lbl" xml:lang="en-US">Principal, Redemption payments</label> 
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_PrincipalAmountOfRedemptionPayments" xlink:to="gfr_PrincipalAmountOfRedemptionPayments_lbl"/>    
    <loc xlink:type="locator" xlink:label="gfr_UnamortizedFinancingCostsOfRedemptionPayments" xlink:href="gfr-20251231.xsd#gfr_UnamortizedFinancingCostsOfRedemptionPayments"/> 
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gfr_UnamortizedFinancingCostsOfRedemptionPayments_lbl" xml:lang="en-US">Unamortized financing costs, Redemption payments</label>    
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_UnamortizedFinancingCostsOfRedemptionPayments" xlink:to="gfr_UnamortizedFinancingCostsOfRedemptionPayments_lbl"/>    
    <loc xlink:type="locator" xlink:label="gfr_LongtermDebtRedemptionPayments" xlink:href="gfr-20251231.xsd#gfr_LongtermDebtRedemptionPayments"/> 
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gfr_LongtermDebtRedemptionPayments_lbl" xml:lang="en-US">Long-term debt, Redemption payments</label> 
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_LongtermDebtRedemptionPayments" xlink:to="gfr_LongtermDebtRedemptionPayments_lbl"/>    
    <loc xlink:type="locator" xlink:label="gfr_PrincipalAmountOfNoncashFinancingExpense" xlink:href="gfr-20251231.xsd#gfr_PrincipalAmountOfNoncashFinancingExpense"/> 
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gfr_PrincipalAmountOfNoncashFinancingExpense_lbl" xml:lang="en-US">Principal, Non-cash financing expense</label>   
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_PrincipalAmountOfNoncashFinancingExpense" xlink:to="gfr_PrincipalAmountOfNoncashFinancingExpense_lbl"/>    
    <loc xlink:type="locator" xlink:label="gfr_UnamortizedFinancingCostsOfNoncashFinancingExpense" xlink:href="gfr-20251231.xsd#gfr_UnamortizedFinancingCostsOfNoncashFinancingExpense"/> 
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gfr_UnamortizedFinancingCostsOfNoncashFinancingExpense_lbl" xml:lang="en-US">Unamortized financing costs, Non-cash financing expense</label> 
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_UnamortizedFinancingCostsOfNoncashFinancingExpense" xlink:to="gfr_UnamortizedFinancingCostsOfNoncashFinancingExpense_lbl"/>    
    <loc xlink:type="locator" xlink:label="gfr_LongtermDebtNoncashFinancingExpense" xlink:href="gfr-20251231.xsd#gfr_LongtermDebtNoncashFinancingExpense"/> 
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gfr_LongtermDebtNoncashFinancingExpense_lbl" xml:lang="en-US">Long-term debt, Non-cash financing expense</label>   
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_LongtermDebtNoncashFinancingExpense" xlink:to="gfr_LongtermDebtNoncashFinancingExpense_lbl"/>    
    <loc xlink:type="locator" xlink:label="gfr_PrincipalAmountOfForeignCurrencyExchangeRateTranslation" xlink:href="gfr-20251231.xsd#gfr_PrincipalAmountOfForeignCurrencyExchangeRateTranslation"/> 
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gfr_PrincipalAmountOfForeignCurrencyExchangeRateTranslation_lbl" xml:lang="en-US">Principal, Foreign exchange</label>   
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_PrincipalAmountOfForeignCurrencyExchangeRateTranslation" xlink:to="gfr_PrincipalAmountOfForeignCurrencyExchangeRateTranslation_lbl"/>    
    <loc xlink:type="locator" xlink:label="gfr_UnamortizedFinancingCostsOfForeignExchange" xlink:href="gfr-20251231.xsd#gfr_UnamortizedFinancingCostsOfForeignExchange"/>     
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gfr_UnamortizedFinancingCostsOfForeignExchange_lbl" xml:lang="en-US">Unamortized financing costs, Foreign exchange</label>   
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_UnamortizedFinancingCostsOfForeignExchange" xlink:to="gfr_UnamortizedFinancingCostsOfForeignExchange_lbl"/>   
    <loc xlink:type="locator" xlink:label="gfr_LongtermDebtForeignCurrencyExchangeRateTranslation" xlink:href="gfr-20251231.xsd#gfr_LongtermDebtForeignCurrencyExchangeRateTranslation"/> 
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gfr_LongtermDebtForeignCurrencyExchangeRateTranslation_lbl" xml:lang="en-US">Long-term debt, Foreign exchange</label>   
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_LongtermDebtForeignCurrencyExchangeRateTranslation" xlink:to="gfr_LongtermDebtForeignCurrencyExchangeRateTranslation_lbl"/>    
    <loc xlink:type="locator" xlink:label="ifrs-full_DisclosureOfLeasesExplanatory" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DisclosureOfLeasesExplanatory"/>     
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_DisclosureOfLeasesExplanatory_lbl" xml:lang="en-US">LEASE LIABILITIES AND OTHER</label>   
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_DisclosureOfLeasesExplanatory" xlink:to="ifrs-full_DisclosureOfLeasesExplanatory_lbl"/>    
    <loc xlink:type="locator" xlink:label="gfr_DisclosureOfLeaseLiabilitiesExplanatoryTableTextBlock" xlink:href="gfr-20251231.xsd#gfr_DisclosureOfLeaseLiabilitiesExplanatoryTableTextBlock"/>  
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gfr_DisclosureOfLeaseLiabilitiesExplanatoryTableTextBlock_lbl" xml:lang="en-US">Schedule of Lease Liabilities</label>   
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_DisclosureOfLeaseLiabilitiesExplanatoryTableTextBlock" xlink:to="gfr_DisclosureOfLeaseLiabilitiesExplanatoryTableTextBlock_lbl"/>     
    <loc xlink:type="locator" xlink:label="gfr_LeaseLiabilityAdditions" xlink:href="gfr-20251231.xsd#gfr_LeaseLiabilityAdditions"/>  
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gfr_LeaseLiabilityAdditions_lbl" xml:lang="en-US">Additions</label>   
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_LeaseLiabilityAdditions" xlink:to="gfr_LeaseLiabilityAdditions_lbl"/>     
    <loc xlink:type="locator" xlink:label="gfr_RightOfUseAssetsLeaseModificationsAndTerminations" xlink:href="gfr-20251231.xsd#gfr_RightOfUseAssetsLeaseModificationsAndTerminations"/>    
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gfr_RightOfUseAssetsLeaseModificationsAndTerminations_lbl" xml:lang="en-US">Modifications and terminations</label>     
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_RightOfUseAssetsLeaseModificationsAndTerminations" xlink:to="gfr_RightOfUseAssetsLeaseModificationsAndTerminations_lbl"/>  
    <loc xlink:type="locator" xlink:label="ifrs-full_InterestExpenseOnLeaseLiabilities" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_InterestExpenseOnLeaseLiabilities"/>   
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_InterestExpenseOnLeaseLiabilities_lbl" xml:lang="en-US">Interest expense</label> 
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_InterestExpenseOnLeaseLiabilities" xlink:to="ifrs-full_InterestExpenseOnLeaseLiabilities_lbl"/>  
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ifrs-full_InterestExpenseOnLeaseLiabilities_lbl0" xml:lang="en-US">Accretion of lease liabilities (Note 8)</label>  
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_InterestExpenseOnLeaseLiabilities" xlink:to="ifrs-full_InterestExpenseOnLeaseLiabilities_lbl0"/>   
    <loc xlink:type="locator" xlink:label="ifrs-full_DisclosureOfMaturityAnalysisOfOperatingLeasePaymentsExplanatory" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DisclosureOfMaturityAnalysisOfOperatingLeasePaymentsExplanatory"/>   
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_DisclosureOfMaturityAnalysisOfOperatingLeasePaymentsExplanatory_lbl" xml:lang="en-US">Schedule of Minimum Lease Payments</label>    
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_DisclosureOfMaturityAnalysisOfOperatingLeasePaymentsExplanatory" xlink:to="ifrs-full_DisclosureOfMaturityAnalysisOfOperatingLeasePaymentsExplanatory_lbl"/>  
    <loc xlink:type="locator" xlink:label="ifrs-full_GrossLeaseLiabilities" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_GrossLeaseLiabilities"/>    
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_GrossLeaseLiabilities_lbl" xml:lang="en-US">Minimum lease payments</label>     
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_GrossLeaseLiabilities" xlink:to="ifrs-full_GrossLeaseLiabilities_lbl"/>   
    <loc xlink:type="locator" xlink:label="gfr_DisclosureOfDecommissioningLiabilitiesTextBlock" xlink:href="gfr-20251231.xsd#gfr_DisclosureOfDecommissioningLiabilitiesTextBlock"/>     
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gfr_DisclosureOfDecommissioningLiabilitiesTextBlock_lbl" xml:lang="en-US">DECOMMISSIONING LIABILITIES</label>     
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_DisclosureOfDecommissioningLiabilitiesTextBlock" xlink:to="gfr_DisclosureOfDecommissioningLiabilitiesTextBlock_lbl"/>   
    <loc xlink:type="locator" xlink:label="gfr_DisclosureOfReconsilationOfDecommissioningLiabilitiesTextBlock" xlink:href="gfr-20251231.xsd#gfr_DisclosureOfReconsilationOfDecommissioningLiabilitiesTextBlock"/>     
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gfr_DisclosureOfReconsilationOfDecommissioningLiabilitiesTextBlock_lbl" xml:lang="en-US">Schedule of Reconciliation of the Decommissioning Liabilities</label>    
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_DisclosureOfReconsilationOfDecommissioningLiabilitiesTextBlock" xlink:to="gfr_DisclosureOfReconsilationOfDecommissioningLiabilitiesTextBlock_lbl"/>   
    <loc xlink:type="locator" xlink:label="gfr_DecommissioningLiabilitiesAcquisitions" xlink:href="gfr-20251231.xsd#gfr_DecommissioningLiabilitiesAcquisitions"/>  
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gfr_DecommissioningLiabilitiesAcquisitions_lbl" xml:lang="en-US">Acquisitions</label> 
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_DecommissioningLiabilitiesAcquisitions" xlink:to="gfr_DecommissioningLiabilitiesAcquisitions_lbl"/>     
    <loc xlink:type="locator" xlink:label="gfr_DecommissioningLiabilitiesIncurred" xlink:href="gfr-20251231.xsd#gfr_DecommissioningLiabilitiesIncurred"/>    
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gfr_DecommissioningLiabilitiesIncurred_lbl" xml:lang="en-US">Liabilities incurred</label>     
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_DecommissioningLiabilitiesIncurred" xlink:to="gfr_DecommissioningLiabilitiesIncurred_lbl"/>  
    <loc xlink:type="locator" xlink:label="gfr_DecommissioningCostsIncurred" xlink:href="gfr-20251231.xsd#gfr_DecommissioningCostsIncurred"/>  
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gfr_DecommissioningCostsIncurred_lbl" xml:lang="en-US">Decommissioning costs incurred</label>    
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_DecommissioningCostsIncurred" xlink:to="gfr_DecommissioningCostsIncurred_lbl"/>     
    <loc xlink:type="locator" xlink:label="gfr_AccretionExpenses" xlink:href="gfr-20251231.xsd#gfr_AccretionExpenses"/>     
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gfr_AccretionExpenses_lbl" xml:lang="en-US">Accretion expense</label>     
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_AccretionExpenses" xlink:to="gfr_AccretionExpenses_lbl"/>   
    <loc xlink:type="locator" xlink:label="gfr_WarrantyLiabilitiesTextBlock" xlink:href="gfr-20251231.xsd#gfr_WarrantyLiabilitiesTextBlock"/>  
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gfr_WarrantyLiabilitiesTextBlock_lbl" xml:lang="en-US">WARRANT LIABILITY</label> 
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_WarrantyLiabilitiesTextBlock" xlink:to="gfr_WarrantyLiabilitiesTextBlock_lbl"/>     
    <loc xlink:type="locator" xlink:label="gfr_DisclosureOfReconcilesTheWarrantLiabilityTextBlock" xlink:href="gfr-20251231.xsd#gfr_DisclosureOfReconcilesTheWarrantLiabilityTextBlock"/> 
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gfr_DisclosureOfReconcilesTheWarrantLiabilityTextBlock_lbl" xml:lang="en-US">Schedule of Warrant Liability</label>     
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_DisclosureOfReconcilesTheWarrantLiabilityTextBlock" xlink:to="gfr_DisclosureOfReconcilesTheWarrantLiabilityTextBlock_lbl"/>    
    <loc xlink:type="locator" xlink:label="gfr_ChangeInFairValue" xlink:href="gfr-20251231.xsd#gfr_ChangeInFairValue"/>     
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gfr_ChangeInFairValue_lbl" xml:lang="en-US">Number of Warrants, Change in fair value</label>   
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_ChangeInFairValue" xlink:to="gfr_ChangeInFairValue_lbl"/>   
    <loc xlink:type="locator" xlink:label="ifrs-full_IncreaseDecreaseInFairValueMeasurementLiabilities" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_IncreaseDecreaseInFairValueMeasurementLiabilities"/>     
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_IncreaseDecreaseInFairValueMeasurementLiabilities_lbl" xml:lang="en-US">Number of Warrants, Change in fair value, Amount</label>    
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_IncreaseDecreaseInFairValueMeasurementLiabilities" xlink:to="ifrs-full_IncreaseDecreaseInFairValueMeasurementLiabilities_lbl"/>    
    <loc xlink:type="locator" xlink:label="gfr_NumberOfWarrantsCommonSharesIssuableOnExercise" xlink:href="gfr-20251231.xsd#gfr_NumberOfWarrantsCommonSharesIssuableOnExercise"/>   
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gfr_NumberOfWarrantsCommonSharesIssuableOnExercise_lbl" xml:lang="en-US">Number of Warrants, Common shares issuable on exercise</label> 
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_NumberOfWarrantsCommonSharesIssuableOnExercise" xlink:to="gfr_NumberOfWarrantsCommonSharesIssuableOnExercise_lbl"/> 
    <loc xlink:type="locator" xlink:label="gfr_NumberOfWarrantsCommonSharesIssuableOnExerciseAmount" xlink:href="gfr-20251231.xsd#gfr_NumberOfWarrantsCommonSharesIssuableOnExerciseAmount"/>     
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gfr_NumberOfWarrantsCommonSharesIssuableOnExerciseAmount_lbl" xml:lang="en-US">Number of Warrants, Common shares issuable on exercise, Amount</label>     
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_NumberOfWarrantsCommonSharesIssuableOnExerciseAmount" xlink:to="gfr_NumberOfWarrantsCommonSharesIssuableOnExerciseAmount_lbl"/>   
    <loc xlink:type="locator" xlink:label="gfr_DisclosureOfFairValueOfEachWarrantWasEstimatedOnItsGrantDateUsingTheBlackScholesMertonValuationModelTextBlock" xlink:href="gfr-20251231.xsd#gfr_DisclosureOfFairValueOfEachWarrantWasEstimatedOnItsGrantDateUsingTheBlackScholesMertonValuationModelTextBlock"/>    
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gfr_DisclosureOfFairValueOfEachWarrantWasEstimatedOnItsGrantDateUsingTheBlackScholesMertonValuationModelTextBlock_lbl" xml:lang="en-US">Schedule of Fair Value of Each Warrant was Estimated Using the Black Scholes Merton Model</label>    
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_DisclosureOfFairValueOfEachWarrantWasEstimatedOnItsGrantDateUsingTheBlackScholesMertonValuationModelTextBlock" xlink:to="gfr_DisclosureOfFairValueOfEachWarrantWasEstimatedOnItsGrantDateUsingTheBlackScholesMertonValuationModelTextBlock_lbl"/>  
    <loc xlink:type="locator" xlink:label="ifrs-full_WeightedAverageSharePriceShareOptionsGranted2019" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_WeightedAverageSharePriceShareOptionsGranted2019"/>   
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_WeightedAverageSharePriceShareOptionsGranted2019_lbl" xml:lang="en-US">Share price</label> 
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_WeightedAverageSharePriceShareOptionsGranted2019" xlink:to="ifrs-full_WeightedAverageSharePriceShareOptionsGranted2019_lbl"/>  
    <loc xlink:type="locator" xlink:label="ifrs-full_ExercisePriceShareOptionsGranted2019" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_ExercisePriceShareOptionsGranted2019"/>    
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_ExercisePriceShareOptionsGranted2019_lbl" xml:lang="en-US">Exercise price</label>  
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_ExercisePriceShareOptionsGranted2019" xlink:to="ifrs-full_ExercisePriceShareOptionsGranted2019_lbl"/>   
    <loc xlink:type="locator" xlink:label="ifrs-full_DescriptionOfRiskFreeInterestRateShareOptionsGranted" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DescriptionOfRiskFreeInterestRateShareOptionsGranted"/> 
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_DescriptionOfRiskFreeInterestRateShareOptionsGranted_lbl" xml:lang="en-US">Average risk-free interest rate</label>     
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_DescriptionOfRiskFreeInterestRateShareOptionsGranted" xlink:to="ifrs-full_DescriptionOfRiskFreeInterestRateShareOptionsGranted_lbl"/>     
    <loc xlink:type="locator" xlink:label="ifrs-full_DescriptionOfExpectedVolatilityShareOptionsGranted" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DescriptionOfExpectedVolatilityShareOptionsGranted"/>  
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_DescriptionOfExpectedVolatilityShareOptionsGranted_lbl" xml:lang="en-US">Average expected volatility</label>    
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_DescriptionOfExpectedVolatilityShareOptionsGranted" xlink:to="ifrs-full_DescriptionOfExpectedVolatilityShareOptionsGranted_lbl"/> 
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ifrs-full_DescriptionOfExpectedVolatilityShareOptionsGranted_lbl0" xml:lang="en-US">Volatility, percentage</label>  
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_DescriptionOfExpectedVolatilityShareOptionsGranted" xlink:to="ifrs-full_DescriptionOfExpectedVolatilityShareOptionsGranted_lbl0"/>  
    <loc xlink:type="locator" xlink:label="ifrs-full_WeightedAverageRemainingContractualLifeOfOutstandingShareOptions2019" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_WeightedAverageRemainingContractualLifeOfOutstandingShareOptions2019"/>   
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_WeightedAverageRemainingContractualLifeOfOutstandingShareOptions2019_lbl" xml:lang="en-US">Average expected life (years)</label>    
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_WeightedAverageRemainingContractualLifeOfOutstandingShareOptions2019" xlink:to="ifrs-full_WeightedAverageRemainingContractualLifeOfOutstandingShareOptions2019_lbl"/>  
    <loc xlink:type="locator" xlink:label="ifrs-full_DisclosureOfClassesOfShareCapitalExplanatory" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DisclosureOfClassesOfShareCapitalExplanatory"/>     
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_DisclosureOfClassesOfShareCapitalExplanatory_lbl" xml:lang="en-US">SHARE CAPITAL AND PER SHARE AMOUNTS</label> 
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_DisclosureOfClassesOfShareCapitalExplanatory" xlink:to="ifrs-full_DisclosureOfClassesOfShareCapitalExplanatory_lbl"/>    
    <loc xlink:type="locator" xlink:label="gfr_DisclosureOfSummarizedChangesToTheCompanysCommonShareCapitalTableTextBlock" xlink:href="gfr-20251231.xsd#gfr_DisclosureOfSummarizedChangesToTheCompanysCommonShareCapitalTableTextBlock"/>    
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gfr_DisclosureOfSummarizedChangesToTheCompanysCommonShareCapitalTableTextBlock_lbl" xml:lang="en-US">Schedule of Common Share Capital</label>  
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_DisclosureOfSummarizedChangesToTheCompanysCommonShareCapitalTableTextBlock" xlink:to="gfr_DisclosureOfSummarizedChangesToTheCompanysCommonShareCapitalTableTextBlock_lbl"/>  
    <loc xlink:type="locator" xlink:label="gfr_IssuedOnExerciseOfShareUnits" xlink:href="gfr-20251231.xsd#gfr_IssuedOnExerciseOfShareUnits"/>  
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gfr_IssuedOnExerciseOfShareUnits_lbl" xml:lang="en-US">Issued on exercise of share units, Share (in Shares)</label> 
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_IssuedOnExerciseOfShareUnits" xlink:to="gfr_IssuedOnExerciseOfShareUnits_lbl"/>     
    <loc xlink:type="locator" xlink:label="gfr_IssuedOnExerciseOfShareUnit" xlink:href="gfr-20251231.xsd#gfr_IssuedOnExerciseOfShareUnit"/>     
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gfr_IssuedOnExerciseOfShareUnit_lbl" xml:lang="en-US">Issued on exercise of share units, Amount</label>    
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_IssuedOnExerciseOfShareUnit" xlink:to="gfr_IssuedOnExerciseOfShareUnit_lbl"/>   
    <loc xlink:type="locator" xlink:label="ifrs-full_NumberOfSharesIssued" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_NumberOfSharesIssued"/>  
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_NumberOfSharesIssued_lbl" xml:lang="en-US">Issued on rights offering, Share (in Shares)</label> 
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_NumberOfSharesIssued" xlink:to="ifrs-full_NumberOfSharesIssued_lbl"/> 
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ifrs-full_NumberOfSharesIssued_lbl0" xml:lang="en-US">Common shares issued</label>     
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_NumberOfSharesIssued" xlink:to="ifrs-full_NumberOfSharesIssued_lbl0"/>  
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/netLabel" xlink:label="ifrs-full_NumberOfSharesIssued_lbl1" xml:lang="en-US">Issuance of common shares (in Shares)</label>   
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_NumberOfSharesIssued" xlink:to="ifrs-full_NumberOfSharesIssued_lbl1"/>  
    <loc xlink:type="locator" xlink:label="ifrs-full_ShareIssueRelatedCost" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_ShareIssueRelatedCost"/>    
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_ShareIssueRelatedCost_lbl" xml:lang="en-US">Share issue costs, net of tax, Share (in Dollars)</label>  
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_ShareIssueRelatedCost" xlink:to="ifrs-full_ShareIssueRelatedCost_lbl"/>   
    <loc xlink:type="locator" xlink:label="gfr_ShareIssuanceCostsRelatedToNetOfTax" xlink:href="gfr-20251231.xsd#gfr_ShareIssuanceCostsRelatedToNetOfTax"/> 
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gfr_ShareIssuanceCostsRelatedToNetOfTax_lbl" xml:lang="en-US">Share issue costs, net of tax, Amount</label>   
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_ShareIssuanceCostsRelatedToNetOfTax" xlink:to="gfr_ShareIssuanceCostsRelatedToNetOfTax_lbl"/>    
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="gfr_ShareIssuanceCostsRelatedToNetOfTax_lbl0" xml:lang="en-US">Net of tax</label>    
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_ShareIssuanceCostsRelatedToNetOfTax" xlink:to="gfr_ShareIssuanceCostsRelatedToNetOfTax_lbl0"/>     
    <loc xlink:type="locator" xlink:label="ifrs-full_EarningsPerShareExplanatory" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_EarningsPerShareExplanatory"/> 
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_EarningsPerShareExplanatory_lbl" xml:lang="en-US">Schedule of Basic and Diluted Net Income (Loss) Per Share</label> 
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_EarningsPerShareExplanatory" xlink:to="ifrs-full_EarningsPerShareExplanatory_lbl"/>     
    <loc xlink:type="locator" xlink:label="ifrs-full_WeightedAverageShares" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_WeightedAverageShares"/>    
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_WeightedAverageShares_lbl" xml:lang="en-US">Weighted average shares outstanding - basic</label> 
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_WeightedAverageShares" xlink:to="ifrs-full_WeightedAverageShares_lbl"/>   
    <loc xlink:type="locator" xlink:label="ifrs-full_DilutiveEffectOfOtherInstrumentsOnWeightedAverageNumberOfOrdinaryShares" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DilutiveEffectOfOtherInstrumentsOnWeightedAverageNumberOfOrdinaryShares"/>    
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_DilutiveEffectOfOtherInstrumentsOnWeightedAverageNumberOfOrdinaryShares_lbl" xml:lang="en-US">Dilutive effect of share units</label>   
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_DilutiveEffectOfOtherInstrumentsOnWeightedAverageNumberOfOrdinaryShares" xlink:to="ifrs-full_DilutiveEffectOfOtherInstrumentsOnWeightedAverageNumberOfOrdinaryShares_lbl"/>   
    <loc xlink:type="locator" xlink:label="ifrs-full_AdjustedWeightedAverageShares" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_AdjustedWeightedAverageShares"/>     
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_AdjustedWeightedAverageShares_lbl" xml:lang="en-US">Weighted average shares outstanding - diluted</label> 
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_AdjustedWeightedAverageShares" xlink:to="ifrs-full_AdjustedWeightedAverageShares_lbl"/>    
    <loc xlink:type="locator" xlink:label="ifrs-full_DisclosureOfRevenueFromContractsWithCustomersExplanatory" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DisclosureOfRevenueFromContractsWithCustomersExplanatory"/>    
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_DisclosureOfRevenueFromContractsWithCustomersExplanatory_lbl" xml:lang="en-US">REVENUE FROM CONTRACTS WITH CUSTOMERS</label>     
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_DisclosureOfRevenueFromContractsWithCustomersExplanatory" xlink:to="ifrs-full_DisclosureOfRevenueFromContractsWithCustomersExplanatory_lbl"/>   
    <loc xlink:type="locator" xlink:label="ifrs-full_DisclosureOfRevenueExplanatory" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DisclosureOfRevenueExplanatory"/>  
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_DisclosureOfRevenueExplanatory_lbl" xml:lang="en-US">Schedule of Revenue from Contracts with Customers</label> 
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_DisclosureOfRevenueExplanatory" xlink:to="ifrs-full_DisclosureOfRevenueExplanatory_lbl"/> 
    <loc xlink:type="locator" xlink:label="ifrs-full_DisclosureOfFinanceIncomeExpenseExplanatory" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DisclosureOfFinanceIncomeExpenseExplanatory"/>   
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_DisclosureOfFinanceIncomeExpenseExplanatory_lbl" xml:lang="en-US">FINANCING AND INTEREST</label>  
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_DisclosureOfFinanceIncomeExpenseExplanatory" xlink:to="ifrs-full_DisclosureOfFinanceIncomeExpenseExplanatory_lbl"/>  
    <loc xlink:type="locator" xlink:label="gfr_DisclosureOfFinancingAndInterestTextBlock" xlink:href="gfr-20251231.xsd#gfr_DisclosureOfFinancingAndInterestTextBlock"/>   
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gfr_DisclosureOfFinancingAndInterestTextBlock_lbl" xml:lang="en-US">Schedule of Financing and Interest</label> 
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_DisclosureOfFinancingAndInterestTextBlock" xlink:to="gfr_DisclosureOfFinancingAndInterestTextBlock_lbl"/> 
    <loc xlink:type="locator" xlink:label="ifrs-full_InterestExpenseOnDebtInstrumentsIssued" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_InterestExpenseOnDebtInstrumentsIssued"/>   
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_InterestExpenseOnDebtInstrumentsIssued_lbl" xml:lang="en-US">Interest on the senior secured notes</label> 
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_InterestExpenseOnDebtInstrumentsIssued" xlink:to="ifrs-full_InterestExpenseOnDebtInstrumentsIssued_lbl"/>  
    <loc xlink:type="locator" xlink:label="ifrs-full_InterestExpenseOnOtherFinancialLiabilities" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_InterestExpenseOnOtherFinancialLiabilities"/> 
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_InterestExpenseOnOtherFinancialLiabilities_lbl" xml:lang="en-US">Other interest</label>   
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_InterestExpenseOnOtherFinancialLiabilities" xlink:to="ifrs-full_InterestExpenseOnOtherFinancialLiabilities_lbl"/>     
    <loc xlink:type="locator" xlink:label="ifrs-full_InterestExpense" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_InterestExpense"/>  
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="ifrs-full_InterestExpense_lbl" xml:lang="en-US">Interest expenses</label>    
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_InterestExpense" xlink:to="ifrs-full_InterestExpense_lbl"/> 
    <loc xlink:type="locator" xlink:label="gfr_AmortizationOfDebtIssuanceCostsAndRedemptionPremium" xlink:href="gfr-20251231.xsd#gfr_AmortizationOfDebtIssuanceCostsAndRedemptionPremium"/>   
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gfr_AmortizationOfDebtIssuanceCostsAndRedemptionPremium_lbl" xml:lang="en-US">Amortization of debt issuance costs and redemption premium (Note 7)</label>    
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_AmortizationOfDebtIssuanceCostsAndRedemptionPremium" xlink:to="gfr_AmortizationOfDebtIssuanceCostsAndRedemptionPremium_lbl"/> 
    <loc xlink:type="locator" xlink:label="gfr_AccretionOfDecommissioningObligations" xlink:href="gfr-20251231.xsd#gfr_AccretionOfDecommissioningObligations"/>     
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gfr_AccretionOfDecommissioningObligations_lbl" xml:lang="en-US">Accretion of decommissioning obligations (Note 9)</label>  
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_AccretionOfDecommissioningObligations" xlink:to="gfr_AccretionOfDecommissioningObligations_lbl"/>   
    <loc xlink:type="locator" xlink:label="ifrs-full_FinanceCosts" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_FinanceCosts"/> 
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="ifrs-full_FinanceCosts_lbl" xml:lang="en-US">Financing expenses</label>  
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_FinanceCosts" xlink:to="ifrs-full_FinanceCosts_lbl"/>     
    <loc xlink:type="locator" xlink:label="ifrs-full_DisclosureOfSharebasedPaymentArrangementsExplanatory" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DisclosureOfSharebasedPaymentArrangementsExplanatory"/> 
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_DisclosureOfSharebasedPaymentArrangementsExplanatory_lbl" xml:lang="en-US">STOCK-BASED COMPENSATION</label>   
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_DisclosureOfSharebasedPaymentArrangementsExplanatory" xlink:to="ifrs-full_DisclosureOfSharebasedPaymentArrangementsExplanatory_lbl"/>     
    <loc xlink:type="locator" xlink:label="ifrs-full_ExplanationOfEffectOfSharebasedPaymentsOnProfitOrLoss" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_ExplanationOfEffectOfSharebasedPaymentsOnProfitOrLoss"/>   
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_ExplanationOfEffectOfSharebasedPaymentsOnProfitOrLoss_lbl" xml:lang="en-US">Schedule of Share Units, Issued and Outstanding</label>  
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_ExplanationOfEffectOfSharebasedPaymentsOnProfitOrLoss" xlink:to="ifrs-full_ExplanationOfEffectOfSharebasedPaymentsOnProfitOrLoss_lbl"/>  
    <loc xlink:type="locator" xlink:label="ifrs-full_NumberOfShareOptionsGrantedInSharebasedPaymentArrangement" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_NumberOfShareOptionsGrantedInSharebasedPaymentArrangement"/> 
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_NumberOfShareOptionsGrantedInSharebasedPaymentArrangement_lbl" xml:lang="en-US">Granted</label> 
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_NumberOfShareOptionsGrantedInSharebasedPaymentArrangement" xlink:to="ifrs-full_NumberOfShareOptionsGrantedInSharebasedPaymentArrangement_lbl"/>     
    <loc xlink:type="locator" xlink:label="ifrs-full_DisclosureOfExpensesExplanatory" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DisclosureOfExpensesExplanatory"/>    
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_DisclosureOfExpensesExplanatory_lbl" xml:lang="en-US">Schedule of Stock-Based Compensation Expense</label>  
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_DisclosureOfExpensesExplanatory" xlink:to="ifrs-full_DisclosureOfExpensesExplanatory_lbl"/>   
    <loc xlink:type="locator" xlink:label="ifrs-full_DisclosureOfNatureAndExtentOfRisksArisingFromFinancialInstrumentsExplanatory" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DisclosureOfNatureAndExtentOfRisksArisingFromFinancialInstrumentsExplanatory"/>    
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_DisclosureOfNatureAndExtentOfRisksArisingFromFinancialInstrumentsExplanatory_lbl" xml:lang="en-US">FINANCIAL INSTRUMENTS AND RISK MANAGEMENT</label>    
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_DisclosureOfNatureAndExtentOfRisksArisingFromFinancialInstrumentsExplanatory" xlink:to="ifrs-full_DisclosureOfNatureAndExtentOfRisksArisingFromFinancialInstrumentsExplanatory_lbl"/>   
    <loc xlink:type="locator" xlink:label="ifrs-full_DisclosureOfFairValueOfFinancialInstrumentsExplanatory" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DisclosureOfFairValueOfFinancialInstrumentsExplanatory"/>     
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_DisclosureOfFairValueOfFinancialInstrumentsExplanatory_lbl" xml:lang="en-US">Schedule of Fair Value of Financial Instruments</label>   
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_DisclosureOfFairValueOfFinancialInstrumentsExplanatory" xlink:to="ifrs-full_DisclosureOfFairValueOfFinancialInstrumentsExplanatory_lbl"/>    
    <loc xlink:type="locator" xlink:label="ifrs-full_CategoriesOfFinancialAssetsAbstract" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_CategoriesOfFinancialAssetsAbstract"/>  
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_CategoriesOfFinancialAssetsAbstract_lbl" xml:lang="en-US">Financial assets at amortized cost:</label>  
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_CategoriesOfFinancialAssetsAbstract" xlink:to="ifrs-full_CategoriesOfFinancialAssetsAbstract_lbl"/> 
    <loc xlink:type="locator" xlink:label="ifrs-full_CurrentRestrictedCashAndCashEquivalents" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_CurrentRestrictedCashAndCashEquivalents"/>     
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_CurrentRestrictedCashAndCashEquivalents_lbl" xml:lang="en-US">Cash and cash equivalents</label> 
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_CurrentRestrictedCashAndCashEquivalents" xlink:to="ifrs-full_CurrentRestrictedCashAndCashEquivalents_lbl"/>    
    <loc xlink:type="locator" xlink:label="ifrs-full_FinancialAssetsAtFairValueThroughProfitOrLossAbstract" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_FinancialAssetsAtFairValueThroughProfitOrLossAbstract"/>   
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_FinancialAssetsAtFairValueThroughProfitOrLossAbstract_lbl" xml:lang="en-US">Financial assets at fair value through profit or loss</label>   
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_FinancialAssetsAtFairValueThroughProfitOrLossAbstract" xlink:to="ifrs-full_FinancialAssetsAtFairValueThroughProfitOrLossAbstract_lbl"/>  
    <loc xlink:type="locator" xlink:label="gfr_RiskManagementContractsAssets" xlink:href="gfr-20251231.xsd#gfr_RiskManagementContractsAssets"/>    
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gfr_RiskManagementContractsAssets_lbl" xml:lang="en-US">Risk management contracts</label>     
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_RiskManagementContractsAssets" xlink:to="gfr_RiskManagementContractsAssets_lbl"/>  
    <loc xlink:type="locator" xlink:label="ifrs-full_CategoriesOfFinancialLiabilitiesAbstract" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_CategoriesOfFinancialLiabilitiesAbstract"/>  
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_CategoriesOfFinancialLiabilitiesAbstract_lbl" xml:lang="en-US">Financial liabilities at amortized cost:</label>  
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_CategoriesOfFinancialLiabilitiesAbstract" xlink:to="ifrs-full_CategoriesOfFinancialLiabilitiesAbstract_lbl"/> 
    <loc xlink:type="locator" xlink:label="ifrs-full_FinancialLiabilitiesAtFairValueThroughProfitOrLossAbstract" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_FinancialLiabilitiesAtFairValueThroughProfitOrLossAbstract"/>   
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_FinancialLiabilitiesAtFairValueThroughProfitOrLossAbstract_lbl" xml:lang="en-US">Financial liabilities at fair value through profit or loss</label>   
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_FinancialLiabilitiesAtFairValueThroughProfitOrLossAbstract" xlink:to="ifrs-full_FinancialLiabilitiesAtFairValueThroughProfitOrLossAbstract_lbl"/>  
    <loc xlink:type="locator" xlink:label="gfr_DisclosureOfGrossAssetAndLiabilityPositionsOfTheCompanysIndividualRiskManagementContractTextBlock" xlink:href="gfr-20251231.xsd#gfr_DisclosureOfGrossAssetAndLiabilityPositionsOfTheCompanysIndividualRiskManagementContractTextBlock"/>     
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gfr_DisclosureOfGrossAssetAndLiabilityPositionsOfTheCompanysIndividualRiskManagementContractTextBlock_lbl" xml:lang="en-US">Schedule of Asset and Liability</label>    
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_DisclosureOfGrossAssetAndLiabilityPositionsOfTheCompanysIndividualRiskManagementContractTextBlock" xlink:to="gfr_DisclosureOfGrossAssetAndLiabilityPositionsOfTheCompanysIndividualRiskManagementContractTextBlock_lbl"/>   
    <loc xlink:type="locator" xlink:label="gfr_RiskManagementContractAssetGross" xlink:href="gfr-20251231.xsd#gfr_RiskManagementContractAssetGross"/>     
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gfr_RiskManagementContractAssetGross_lbl" xml:lang="en-US">Gross amount</label>     
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_RiskManagementContractAssetGross" xlink:to="gfr_RiskManagementContractAssetGross_lbl"/>   
    <loc xlink:type="locator" xlink:label="ifrs-full_DisclosureOfFinancialRiskManagementExplanatory" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DisclosureOfFinancialRiskManagementExplanatory"/>    
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_DisclosureOfFinancialRiskManagementExplanatory_lbl" xml:lang="en-US">Schedule of Gain (Loss) on Risk Management Contracts</label>     
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_DisclosureOfFinancialRiskManagementExplanatory" xlink:to="ifrs-full_DisclosureOfFinancialRiskManagementExplanatory_lbl"/>   
    <loc xlink:type="locator" xlink:label="gfr_RealizedLossOnRiskManagementContracts" xlink:href="gfr-20251231.xsd#gfr_RealizedLossOnRiskManagementContracts"/>     
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gfr_RealizedLossOnRiskManagementContracts_lbl" xml:lang="en-US">Realized gain (loss) on risk management contracts</label>  
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_RealizedLossOnRiskManagementContracts" xlink:to="gfr_RealizedLossOnRiskManagementContracts_lbl"/>   
    <loc xlink:type="locator" xlink:label="gfr_DisclosureOfFinancialCommodityRiskManagementContractsTextBlock" xlink:href="gfr-20251231.xsd#gfr_DisclosureOfFinancialCommodityRiskManagementContractsTextBlock"/>     
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gfr_DisclosureOfFinancialCommodityRiskManagementContractsTextBlock_lbl" xml:lang="en-US">Schedule of Financial Commodity Risk Management Contracts</label>     
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_DisclosureOfFinancialCommodityRiskManagementContractsTextBlock" xlink:to="gfr_DisclosureOfFinancialCommodityRiskManagementContractsTextBlock_lbl"/>   
    <loc xlink:type="locator" xlink:label="gfr_CommodityRiskManagementContractVolume" xlink:href="gfr-20251231.xsd#gfr_CommodityRiskManagementContractVolume"/>     
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gfr_CommodityRiskManagementContractVolume_lbl" xml:lang="en-US">Volume (per day)</label>    
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_CommodityRiskManagementContractVolume" xlink:to="gfr_CommodityRiskManagementContractVolume_lbl"/>   
    <loc xlink:type="locator" xlink:label="gfr_CommodityRiskSwapPrice" xlink:href="gfr-20251231.xsd#gfr_CommodityRiskSwapPrice"/>     
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gfr_CommodityRiskSwapPrice_lbl" xml:lang="en-US">Swap Price</label>   
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_CommodityRiskSwapPrice" xlink:to="gfr_CommodityRiskSwapPrice_lbl"/>   
    <loc xlink:type="locator" xlink:label="gfr_CommodityRiskPutPrice" xlink:href="gfr-20251231.xsd#gfr_CommodityRiskPutPrice"/>   
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gfr_CommodityRiskPutPrice_lbl" xml:lang="en-US">Put Price</label> 
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_CommodityRiskPutPrice" xlink:to="gfr_CommodityRiskPutPrice_lbl"/> 
    <loc xlink:type="locator" xlink:label="gfr_CommodityRiskCallPrice" xlink:href="gfr-20251231.xsd#gfr_CommodityRiskCallPrice"/>     
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gfr_CommodityRiskCallPrice_lbl" xml:lang="en-US">Call Price</label>   
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_CommodityRiskCallPrice" xlink:to="gfr_CommodityRiskCallPrice_lbl"/>   
    <loc xlink:type="locator" xlink:label="ifrs-full_DisclosureOfNetDefinedBenefitLiabilityAssetExplanatory" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DisclosureOfNetDefinedBenefitLiabilityAssetExplanatory"/>     
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_DisclosureOfNetDefinedBenefitLiabilityAssetExplanatory_lbl" xml:lang="en-US">Schedule of Net Income, Before Tax, Based on the Financial Risk Management Contracts</label>     
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_DisclosureOfNetDefinedBenefitLiabilityAssetExplanatory" xlink:to="ifrs-full_DisclosureOfNetDefinedBenefitLiabilityAssetExplanatory_lbl"/>    
    <loc xlink:type="locator" xlink:label="gfr_FairValueOfCommodityRiskManagementContractsIncrease" xlink:href="gfr-20251231.xsd#gfr_FairValueOfCommodityRiskManagementContractsIncrease"/>   
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gfr_FairValueOfCommodityRiskManagementContractsIncrease_lbl" xml:lang="en-US">Increase (decrease) to fair value of the risk management contracts</label>   
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_FairValueOfCommodityRiskManagementContractsIncrease" xlink:to="gfr_FairValueOfCommodityRiskManagementContractsIncrease_lbl"/> 
    <loc xlink:type="locator" xlink:label="gfr_FairValueOfCommodityRiskManagementContractsDecrease" xlink:href="gfr-20251231.xsd#gfr_FairValueOfCommodityRiskManagementContractsDecrease"/>   
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gfr_FairValueOfCommodityRiskManagementContractsDecrease_lbl" xml:lang="en-US">Increase (decrease) to fair value of the risk management contracts</label>   
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_FairValueOfCommodityRiskManagementContractsDecrease" xlink:to="gfr_FairValueOfCommodityRiskManagementContractsDecrease_lbl"/> 
    <loc xlink:type="locator" xlink:label="ifrs-full_DisclosureOfCreditRiskExplanatory" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DisclosureOfCreditRiskExplanatory"/>   
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_DisclosureOfCreditRiskExplanatory_lbl" xml:lang="en-US">Schedule of Credit Risk</label>   
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_DisclosureOfCreditRiskExplanatory" xlink:to="ifrs-full_DisclosureOfCreditRiskExplanatory_lbl"/>  
    <loc xlink:type="locator" xlink:label="ifrs-full_TradeReceivables" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_TradeReceivables"/>    
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_TradeReceivables_lbl" xml:lang="en-US">Trade receivables</label>     
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_TradeReceivables" xlink:to="ifrs-full_TradeReceivables_lbl"/>   
    <loc xlink:type="locator" xlink:label="gfr_JointInterestReceivables" xlink:href="gfr-20251231.xsd#gfr_JointInterestReceivables"/>    
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gfr_JointInterestReceivables_lbl" xml:lang="en-US">Joint interest receivables</label> 
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_JointInterestReceivables" xlink:to="gfr_JointInterestReceivables_lbl"/>  
    <loc xlink:type="locator" xlink:label="gfr_AccruedJointInterestReceivables" xlink:href="gfr-20251231.xsd#gfr_AccruedJointInterestReceivables"/>   
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gfr_AccruedJointInterestReceivables_lbl" xml:lang="en-US">Accrued joint interest receivables</label> 
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_AccruedJointInterestReceivables" xlink:to="gfr_AccruedJointInterestReceivables_lbl"/> 
    <loc xlink:type="locator" xlink:label="ifrs-full_MaturityAnalysisForNonderivativeFinancialLiabilities" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_MaturityAnalysisForNonderivativeFinancialLiabilities"/> 
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_MaturityAnalysisForNonderivativeFinancialLiabilities_lbl" xml:lang="en-US">Schedule of Contractual Maturities of its Financial Liabilities</label>  
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_MaturityAnalysisForNonderivativeFinancialLiabilities" xlink:to="ifrs-full_MaturityAnalysisForNonderivativeFinancialLiabilities_lbl"/>     
    <loc xlink:type="locator" xlink:label="ifrs-full_DisclosureOfCommitmentsAndContingentLiabilitiesExplanatory" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DisclosureOfCommitmentsAndContingentLiabilitiesExplanatory"/>   
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_DisclosureOfCommitmentsAndContingentLiabilitiesExplanatory_lbl" xml:lang="en-US">COMMITMENTS AND CONTINGENCIES</label>    
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_DisclosureOfCommitmentsAndContingentLiabilitiesExplanatory" xlink:to="ifrs-full_DisclosureOfCommitmentsAndContingentLiabilitiesExplanatory_lbl"/>  
    <loc xlink:type="locator" xlink:label="gfr_DisclosureOfCommitmentsTableTextBlock" xlink:href="gfr-20251231.xsd#gfr_DisclosureOfCommitmentsTableTextBlock"/>     
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gfr_DisclosureOfCommitmentsTableTextBlock_lbl" xml:lang="en-US">Schedule of Commitments</label> 
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_DisclosureOfCommitmentsTableTextBlock" xlink:to="gfr_DisclosureOfCommitmentsTableTextBlock_lbl"/>   
    <loc xlink:type="locator" xlink:label="ifrs-full_TransportationExpense" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_TransportationExpense"/>    
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_TransportationExpense_lbl" xml:lang="en-US">Transportation</label>  
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_TransportationExpense" xlink:to="ifrs-full_TransportationExpense_lbl"/>   
    <loc xlink:type="locator" xlink:label="gfr_OtherCommitments" xlink:href="gfr-20251231.xsd#gfr_OtherCommitments"/>   
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gfr_OtherCommitments_lbl" xml:lang="en-US">Other</label>  
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_OtherCommitments" xlink:to="gfr_OtherCommitments_lbl"/> 
    <loc xlink:type="locator" xlink:label="gfr_DisclosureOfCapitalManagementTextBlock" xlink:href="gfr-20251231.xsd#gfr_DisclosureOfCapitalManagementTextBlock"/>  
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gfr_DisclosureOfCapitalManagementTextBlock_lbl" xml:lang="en-US">CAPITAL MANAGEMENT</label>  
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_DisclosureOfCapitalManagementTextBlock" xlink:to="gfr_DisclosureOfCapitalManagementTextBlock_lbl"/>     
    <loc xlink:type="locator" xlink:label="gfr_AccountsPayableAndAccruedLiabilitiesTextBlock" xlink:href="gfr-20251231.xsd#gfr_AccountsPayableAndAccruedLiabilitiesTextBlock"/> 
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gfr_AccountsPayableAndAccruedLiabilitiesTextBlock_lbl" xml:lang="en-US">ACCOUNTS PAYABLE AND ACCRUED LIABILITIES</label> 
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_AccountsPayableAndAccruedLiabilitiesTextBlock" xlink:to="gfr_AccountsPayableAndAccruedLiabilitiesTextBlock_lbl"/>    
    <loc xlink:type="locator" xlink:label="gfr_DisclosureOfAccountsPayableAndAccruedLiabilities" xlink:href="gfr-20251231.xsd#gfr_DisclosureOfAccountsPayableAndAccruedLiabilities"/>  
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gfr_DisclosureOfAccountsPayableAndAccruedLiabilities_lbl" xml:lang="en-US">Schedule of Accounts Payable and Accrued Liabilities</label> 
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_DisclosureOfAccountsPayableAndAccruedLiabilities" xlink:to="gfr_DisclosureOfAccountsPayableAndAccruedLiabilities_lbl"/>     
    <loc xlink:type="locator" xlink:label="ifrs-full_TradeAndOtherPayablesToTradeSuppliers" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_TradeAndOtherPayablesToTradeSuppliers"/> 
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_TradeAndOtherPayablesToTradeSuppliers_lbl" xml:lang="en-US">Trade payables</label>   
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_TradeAndOtherPayablesToTradeSuppliers" xlink:to="ifrs-full_TradeAndOtherPayablesToTradeSuppliers_lbl"/>     
    <loc xlink:type="locator" xlink:label="ifrs-full_AccrualsClassifiedAsCurrent" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_AccrualsClassifiedAsCurrent"/> 
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_AccrualsClassifiedAsCurrent_lbl" xml:lang="en-US">Accrued payables</label>     
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_AccrualsClassifiedAsCurrent" xlink:to="ifrs-full_AccrualsClassifiedAsCurrent_lbl"/>     
    <loc xlink:type="locator" xlink:label="gfr_AccruedInterestPayable" xlink:href="gfr-20251231.xsd#gfr_AccruedInterestPayable"/>     
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gfr_AccruedInterestPayable_lbl" xml:lang="en-US">Accrued interest payable</label>  
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_AccruedInterestPayable" xlink:to="gfr_AccruedInterestPayable_lbl"/>   
    <loc xlink:type="locator" xlink:label="ifrs-full_DisclosureOfCashFlowStatementExplanatory" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DisclosureOfCashFlowStatementExplanatory"/>  
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_DisclosureOfCashFlowStatementExplanatory_lbl" xml:lang="en-US">SUPPLEMENTAL CASH FLOW INFORMATION</label> 
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_DisclosureOfCashFlowStatementExplanatory" xlink:to="ifrs-full_DisclosureOfCashFlowStatementExplanatory_lbl"/> 
    <loc xlink:type="locator" xlink:label="ifrs-full_DisclosureOfDerivativeFinancialInstrumentsExplanatory" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DisclosureOfDerivativeFinancialInstrumentsExplanatory"/>   
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_DisclosureOfDerivativeFinancialInstrumentsExplanatory_lbl" xml:lang="en-US">Schedule of Net Changes in Non-Cash Working Capital and Other Liabilities</label>   
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_DisclosureOfDerivativeFinancialInstrumentsExplanatory" xlink:to="ifrs-full_DisclosureOfDerivativeFinancialInstrumentsExplanatory_lbl"/>  
    <loc xlink:type="locator" xlink:label="ifrs-full_AdjustmentsForDecreaseIncreaseInTradeAndOtherReceivables" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_AdjustmentsForDecreaseIncreaseInTradeAndOtherReceivables"/>    
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_AdjustmentsForDecreaseIncreaseInTradeAndOtherReceivables_lbl" xml:lang="en-US">Change in accounts receivable</label>  
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_AdjustmentsForDecreaseIncreaseInTradeAndOtherReceivables" xlink:to="ifrs-full_AdjustmentsForDecreaseIncreaseInTradeAndOtherReceivables_lbl"/>   
    <loc xlink:type="locator" xlink:label="ifrs-full_ChangesInInventoriesOfFinishedGoodsAndWorkInProgress" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_ChangesInInventoriesOfFinishedGoodsAndWorkInProgress"/> 
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_ChangesInInventoriesOfFinishedGoodsAndWorkInProgress_lbl" xml:lang="en-US">Change in inventories</label>     
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_ChangesInInventoriesOfFinishedGoodsAndWorkInProgress" xlink:to="ifrs-full_ChangesInInventoriesOfFinishedGoodsAndWorkInProgress_lbl"/>     
    <loc xlink:type="locator" xlink:label="ifrs-full_AdjustmentsForIncreaseDecreaseInTradeAndOtherPayables" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_AdjustmentsForIncreaseDecreaseInTradeAndOtherPayables"/>   
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_AdjustmentsForIncreaseDecreaseInTradeAndOtherPayables_lbl" xml:lang="en-US">Change in accounts payable and accrued liabilities</label>     
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_AdjustmentsForIncreaseDecreaseInTradeAndOtherPayables" xlink:to="ifrs-full_AdjustmentsForIncreaseDecreaseInTradeAndOtherPayables_lbl"/>  
    <loc xlink:type="locator" xlink:label="gfr_OtherItemsImpactingChangesInNonCashWorkingCapitalAbstract" xlink:href="gfr-20251231.xsd#gfr_OtherItemsImpactingChangesInNonCashWorkingCapitalAbstract"/>     
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gfr_OtherItemsImpactingChangesInNonCashWorkingCapitalAbstract_lbl" xml:lang="en-US">Other items impacting changes in non-cash working capital:</label> 
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_OtherItemsImpactingChangesInNonCashWorkingCapitalAbstract" xlink:to="gfr_OtherItemsImpactingChangesInNonCashWorkingCapitalAbstract_lbl"/>   
    <loc xlink:type="locator" xlink:label="ifrs-full_IncomeTaxesRefundClassifiedAsOperatingActivities" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_IncomeTaxesRefundClassifiedAsOperatingActivities"/>   
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_IncomeTaxesRefundClassifiedAsOperatingActivities_lbl" xml:lang="en-US">Cash interest received (included in operating activities)</label>  
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_IncomeTaxesRefundClassifiedAsOperatingActivities" xlink:to="ifrs-full_IncomeTaxesRefundClassifiedAsOperatingActivities_lbl"/>  
    <loc xlink:type="locator" xlink:label="ifrs-full_DisclosureOfRelatedPartyExplanatory" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DisclosureOfRelatedPartyExplanatory"/>  
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_DisclosureOfRelatedPartyExplanatory_lbl" xml:lang="en-US">RELATED PARTY TRANSACTIONS</label>   
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_DisclosureOfRelatedPartyExplanatory" xlink:to="ifrs-full_DisclosureOfRelatedPartyExplanatory_lbl"/> 
    <loc xlink:type="locator" xlink:label="ifrs-full_DisclosureOfTransactionsBetweenRelatedPartiesExplanatory" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DisclosureOfTransactionsBetweenRelatedPartiesExplanatory"/>    
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_DisclosureOfTransactionsBetweenRelatedPartiesExplanatory_lbl" xml:lang="en-US">Schedule of Considers Directors and Officers</label>  
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_DisclosureOfTransactionsBetweenRelatedPartiesExplanatory" xlink:to="ifrs-full_DisclosureOfTransactionsBetweenRelatedPartiesExplanatory_lbl"/>   
    <loc xlink:type="locator" xlink:label="ifrs-full_KeyManagementPersonnelCompensationPostemploymentBenefits" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_KeyManagementPersonnelCompensationPostemploymentBenefits"/>    
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_KeyManagementPersonnelCompensationPostemploymentBenefits_lbl" xml:lang="en-US">Salaries, benefits and director fees</label>    
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_KeyManagementPersonnelCompensationPostemploymentBenefits" xlink:to="ifrs-full_KeyManagementPersonnelCompensationPostemploymentBenefits_lbl"/>   
    <loc xlink:type="locator" xlink:label="gfr_GainOnWarrantRevaluation" xlink:href="gfr-20251231.xsd#gfr_GainOnWarrantRevaluation"/>    
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:label="gfr_GainOnWarrantRevaluation_lbl" xml:lang="en-US">Gain on warrant revaluation</label>    
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_GainOnWarrantRevaluation" xlink:to="gfr_GainOnWarrantRevaluation_lbl"/>  
    <loc xlink:type="locator" xlink:label="gfr_CapitalGainOnDebtSettlementinDollars" xlink:href="gfr-20251231.xsd#gfr_CapitalGainOnDebtSettlementinDollars"/>   
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:label="gfr_CapitalGainOnDebtSettlementinDollars_lbl" xml:lang="en-US">Capital gain on debt settlement</label>     
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_CapitalGainOnDebtSettlementinDollars" xlink:to="gfr_CapitalGainOnDebtSettlementinDollars_lbl"/> 
    <loc xlink:type="locator" xlink:label="gfr_GainOnBusinessCombination" xlink:href="gfr-20251231.xsd#gfr_GainOnBusinessCombination"/> 
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:label="gfr_GainOnBusinessCombination_lbl" xml:lang="en-US">Effect of change of control (Note1)</label>   
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_GainOnBusinessCombination" xlink:to="gfr_GainOnBusinessCombination_lbl"/>    
    <loc xlink:type="locator" xlink:label="gfr_OtherPermanentDifferences" xlink:href="gfr-20251231.xsd#gfr_OtherPermanentDifferences"/> 
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:label="gfr_OtherPermanentDifferences_lbl" xml:lang="en-US">Other permanent differences</label>     
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_OtherPermanentDifferences" xlink:to="gfr_OtherPermanentDifferences_lbl"/>    
    <loc xlink:type="locator" xlink:label="gfr_DeferredIncomeTaxExpensePropertyPlantampEquipment" xlink:href="gfr-20251231.xsd#gfr_DeferredIncomeTaxExpensePropertyPlantampEquipment"/>    
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:label="gfr_DeferredIncomeTaxExpensePropertyPlantampEquipment_lbl" xml:lang="en-US">Property, plant &amp; equipment</label>   
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_DeferredIncomeTaxExpensePropertyPlantampEquipment" xlink:to="gfr_DeferredIncomeTaxExpensePropertyPlantampEquipment_lbl"/>  
    <loc xlink:type="locator" xlink:label="gfr_CorporateCapitalTaxLossesCarriedForward" xlink:href="gfr-20251231.xsd#gfr_CorporateCapitalTaxLossesCarriedForward"/>    
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:label="gfr_CorporateCapitalTaxLossesCarriedForward_lbl" xml:lang="en-US">Corporate non-capital tax losses carried forward</label>     
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_CorporateCapitalTaxLossesCarriedForward" xlink:to="gfr_CorporateCapitalTaxLossesCarriedForward_lbl"/>  
    <loc xlink:type="locator" xlink:label="gfr_DeferredTaxAssetLiabilityLongTermDebt" xlink:href="gfr-20251231.xsd#gfr_DeferredTaxAssetLiabilityLongTermDebt"/>     
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:label="gfr_DeferredTaxAssetLiabilityLongTermDebt_lbl" xml:lang="en-US">Long-term debt and issuance costs</label>   
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_DeferredTaxAssetLiabilityLongTermDebt" xlink:to="gfr_DeferredTaxAssetLiabilityLongTermDebt_lbl"/>   
    <loc xlink:type="locator" xlink:label="gfr_AdjustmentForDifferencesInProvincialIncomeTaxPools" xlink:href="gfr-20251231.xsd#gfr_AdjustmentForDifferencesInProvincialIncomeTaxPools"/> 
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:label="gfr_AdjustmentForDifferencesInProvincialIncomeTaxPools_lbl" xml:lang="en-US">Adjustment for differences in provincial income tax pools</label>     
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_AdjustmentForDifferencesInProvincialIncomeTaxPools" xlink:to="gfr_AdjustmentForDifferencesInProvincialIncomeTaxPools_lbl"/>    
    <loc xlink:type="locator" xlink:label="ifrs-full_ExpenseRelatingToVariableLeasePaymentsNotIncludedInMeasurementOfLeaseLiabilities" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_ExpenseRelatingToVariableLeasePaymentsNotIncludedInMeasurementOfLeaseLiabilities"/>  
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:label="ifrs-full_ExpenseRelatingToVariableLeasePaymentsNotIncludedInMeasurementOfLeaseLiabilities_lbl" xml:lang="en-US">Payments</label>  
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_ExpenseRelatingToVariableLeasePaymentsNotIncludedInMeasurementOfLeaseLiabilities" xlink:to="ifrs-full_ExpenseRelatingToVariableLeasePaymentsNotIncludedInMeasurementOfLeaseLiabilities_lbl"/> 
    <loc xlink:type="locator" xlink:label="ifrs-full_UndiscountedOperatingLeasePaymentsToBeReceived" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_UndiscountedOperatingLeasePaymentsToBeReceived"/>    
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:label="ifrs-full_UndiscountedOperatingLeasePaymentsToBeReceived_lbl" xml:lang="en-US">Amounts representing finance charges</label> 
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_UndiscountedOperatingLeasePaymentsToBeReceived" xlink:to="ifrs-full_UndiscountedOperatingLeasePaymentsToBeReceived_lbl"/>   
    <loc xlink:type="locator" xlink:label="gfr_DecommissioningLiabilitiesChangeInEstimates" xlink:href="gfr-20251231.xsd#gfr_DecommissioningLiabilitiesChangeInEstimates"/>  
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:label="gfr_DecommissioningLiabilitiesChangeInEstimates_lbl" xml:lang="en-US">Change in estimates</label>     
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_DecommissioningLiabilitiesChangeInEstimates" xlink:to="gfr_DecommissioningLiabilitiesChangeInEstimates_lbl"/>     
    <loc xlink:type="locator" xlink:label="ifrs-full_NumberOfShareOptionsExercisedInSharebasedPaymentArrangement" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_NumberOfShareOptionsExercisedInSharebasedPaymentArrangement"/>     
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:label="ifrs-full_NumberOfShareOptionsExercisedInSharebasedPaymentArrangement_lbl" xml:lang="en-US">Exercised</label>  
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_NumberOfShareOptionsExercisedInSharebasedPaymentArrangement" xlink:to="ifrs-full_NumberOfShareOptionsExercisedInSharebasedPaymentArrangement_lbl"/>    
    <loc xlink:type="locator" xlink:label="ifrs-full_NumberOfShareOptionsForfeitedInSharebasedPaymentArrangement" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_NumberOfShareOptionsForfeitedInSharebasedPaymentArrangement"/>     
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:label="ifrs-full_NumberOfShareOptionsForfeitedInSharebasedPaymentArrangement_lbl" xml:lang="en-US">Forfeited / Expired</label>  
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_NumberOfShareOptionsForfeitedInSharebasedPaymentArrangement" xlink:to="ifrs-full_NumberOfShareOptionsForfeitedInSharebasedPaymentArrangement_lbl"/>    
    <loc xlink:type="locator" xlink:label="ifrs-full_NumberOfShareOptionsExpiredInSharebasedPaymentArrangement" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_NumberOfShareOptionsExpiredInSharebasedPaymentArrangement"/> 
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:label="ifrs-full_NumberOfShareOptionsExpiredInSharebasedPaymentArrangement_lbl" xml:lang="en-US">Cancelled</label>     
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_NumberOfShareOptionsExpiredInSharebasedPaymentArrangement" xlink:to="ifrs-full_NumberOfShareOptionsExpiredInSharebasedPaymentArrangement_lbl"/>     
    <loc xlink:type="locator" xlink:label="gfr_RiskManagementContractLiabilityOffsetAmount" xlink:href="gfr-20251231.xsd#gfr_RiskManagementContractLiabilityOffsetAmount"/>  
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:label="gfr_RiskManagementContractLiabilityOffsetAmount_lbl" xml:lang="en-US">Amount offset</label>    
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_RiskManagementContractLiabilityOffsetAmount" xlink:to="gfr_RiskManagementContractLiabilityOffsetAmount_lbl"/>     
    <loc xlink:type="locator" xlink:label="gfr_UnrealizedGainlossOnRiskManagementContracts" xlink:href="gfr-20251231.xsd#gfr_UnrealizedGainlossOnRiskManagementContracts"/>  
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:label="gfr_UnrealizedGainlossOnRiskManagementContracts_lbl" xml:lang="en-US">Unrealized gain on risk management contracts</label>     
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_UnrealizedGainlossOnRiskManagementContracts" xlink:to="gfr_UnrealizedGainlossOnRiskManagementContracts_lbl"/>     
    <loc xlink:type="locator" xlink:label="gfr_ChangeInPrepaidExpensesAndDeposits" xlink:href="gfr-20251231.xsd#gfr_ChangeInPrepaidExpensesAndDeposits"/>    
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:label="gfr_ChangeInPrepaidExpensesAndDeposits_lbl" xml:lang="en-US">Change in prepaid expenses and deposits</label> 
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_ChangeInPrepaidExpensesAndDeposits" xlink:to="gfr_ChangeInPrepaidExpensesAndDeposits_lbl"/>  
    <loc xlink:type="locator" xlink:label="gfr_ChangeInIncomeTaxPayable" xlink:href="gfr-20251231.xsd#gfr_ChangeInIncomeTaxPayable"/>    
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:label="gfr_ChangeInIncomeTaxPayable_lbl" xml:lang="en-US">Change in income tax payable</label>     
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_ChangeInIncomeTaxPayable" xlink:to="gfr_ChangeInIncomeTaxPayable_lbl"/>  
    <loc xlink:type="locator" xlink:label="gfr_ChangeInWorkingCapital" xlink:href="gfr-20251231.xsd#gfr_ChangeInWorkingCapital"/>     
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:label="gfr_ChangeInWorkingCapital_lbl" xml:lang="en-US">Change in working capital</label>     
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_ChangeInWorkingCapital" xlink:to="gfr_ChangeInWorkingCapital_lbl"/>   
    <loc xlink:type="locator" xlink:label="gfr_WithholdingTaxesOnShareUnits" xlink:href="gfr-20251231.xsd#gfr_WithholdingTaxesOnShareUnits"/>  
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:label="gfr_WithholdingTaxesOnShareUnits_lbl" xml:lang="en-US">Withholding taxes on share units</label>   
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_WithholdingTaxesOnShareUnits" xlink:to="gfr_WithholdingTaxesOnShareUnits_lbl"/>     
    <loc xlink:type="locator" xlink:label="gfr_UnrealizedForeignExchangeLossInAccountsPayable" xlink:href="gfr-20251231.xsd#gfr_UnrealizedForeignExchangeLossInAccountsPayable"/>   
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:label="gfr_UnrealizedForeignExchangeLossInAccountsPayable_lbl" xml:lang="en-US">Unrealized foreign exchange gain related to working capital</label>   
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_UnrealizedForeignExchangeLossInAccountsPayable" xlink:to="gfr_UnrealizedForeignExchangeLossInAccountsPayable_lbl"/> 
    <loc xlink:type="locator" xlink:label="gfr_NonCashWorkingCapitalRelatedToOperatingActivities" xlink:href="gfr-20251231.xsd#gfr_NonCashWorkingCapitalRelatedToOperatingActivities"/>    
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:label="gfr_NonCashWorkingCapitalRelatedToOperatingActivities_lbl" xml:lang="en-US">Related to operating activities</label>   
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_NonCashWorkingCapitalRelatedToOperatingActivities" xlink:to="gfr_NonCashWorkingCapitalRelatedToOperatingActivities_lbl"/>  
    <loc xlink:type="locator" xlink:label="gfr_NonCashWorkingCapitalRelatedToInvestingActivitiesaccruedAdditionsPropertyPlantandEquipment" xlink:href="gfr-20251231.xsd#gfr_NonCashWorkingCapitalRelatedToInvestingActivitiesaccruedAdditionsPropertyPlantandEquipment"/> 
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:label="gfr_NonCashWorkingCapitalRelatedToInvestingActivitiesaccruedAdditionsPropertyPlantandEquipment_lbl" xml:lang="en-US">Related to investing activities</label>    
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_NonCashWorkingCapitalRelatedToInvestingActivitiesaccruedAdditionsPropertyPlantandEquipment" xlink:to="gfr_NonCashWorkingCapitalRelatedToInvestingActivitiesaccruedAdditionsPropertyPlantandEquipment_lbl"/>    
    <loc xlink:type="locator" xlink:label="ifrs-full_IncomeTaxesPaidClassifiedAsOperatingActivities" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_IncomeTaxesPaidClassifiedAsOperatingActivities"/>    
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:label="ifrs-full_IncomeTaxesPaidClassifiedAsOperatingActivities_lbl" xml:lang="en-US">Cash interest paid (included in operating activities)</label>   
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_IncomeTaxesPaidClassifiedAsOperatingActivities" xlink:to="ifrs-full_IncomeTaxesPaidClassifiedAsOperatingActivities_lbl"/>   
    <loc xlink:type="locator" xlink:label="gfr_CashAndCashEquivalentMember" xlink:href="gfr-20251231.xsd#gfr_CashAndCashEquivalentMember"/>     
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gfr_CashAndCashEquivalentMember_lbl" xml:lang="en-US">Cash and cash equivalents [Member]</label>  
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_CashAndCashEquivalentMember" xlink:to="gfr_CashAndCashEquivalentMember_lbl"/>   
    <loc xlink:type="locator" xlink:label="gfr_AccountsReceivablesMember" xlink:href="gfr-20251231.xsd#gfr_AccountsReceivablesMember"/> 
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gfr_AccountsReceivablesMember_lbl" xml:lang="en-US">Accounts receivable [Member]</label>    
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_AccountsReceivablesMember" xlink:to="gfr_AccountsReceivablesMember_lbl"/>    
    <loc xlink:type="locator" xlink:label="gfr_RiskManagementContractsMember" xlink:href="gfr-20251231.xsd#gfr_RiskManagementContractsMember"/>    
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gfr_RiskManagementContractsMember_lbl" xml:lang="en-US">Risk management contracts [Member]</label>    
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_RiskManagementContractsMember" xlink:to="gfr_RiskManagementContractsMember_lbl"/>  
    <loc xlink:type="locator" xlink:label="gfr_AccountsPayableAndAccruedLiabilityMember" xlink:href="gfr-20251231.xsd#gfr_AccountsPayableAndAccruedLiabilityMember"/> 
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gfr_AccountsPayableAndAccruedLiabilityMember_lbl" xml:lang="en-US">Accounts payable and accrued liabilities [Member]</label>     
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_AccountsPayableAndAccruedLiabilityMember" xlink:to="gfr_AccountsPayableAndAccruedLiabilityMember_lbl"/>    
    <loc xlink:type="locator" xlink:label="gfr_WarrantLiabilityMember" xlink:href="gfr-20251231.xsd#gfr_WarrantLiabilityMember"/>     
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gfr_WarrantLiabilityMember_lbl" xml:lang="en-US">Warrant liability [Member]</label>    
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_WarrantLiabilityMember" xlink:to="gfr_WarrantLiabilityMember_lbl"/>   
    <loc xlink:type="locator" xlink:label="gfr_LongtermDebtMember" xlink:href="gfr-20251231.xsd#gfr_LongtermDebtMember"/>  
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gfr_LongtermDebtMember_lbl" xml:lang="en-US">Long-term debt [Member]</label>  
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_LongtermDebtMember" xlink:to="gfr_LongtermDebtMember_lbl"/>     
    <loc xlink:type="locator" xlink:label="ifrs-full_GrossCarryingAmountMember" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_GrossCarryingAmountMember"/>  
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_GrossCarryingAmountMember_lbl" xml:lang="en-US">Gross Carrying Amount [Member]</label>  
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_GrossCarryingAmountMember" xlink:to="ifrs-full_GrossCarryingAmountMember_lbl"/> 
    <loc xlink:type="locator" xlink:label="ifrs-full_AccumulatedDepreciationAmortisationAndImpairmentMember" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_AccumulatedDepreciationAmortisationAndImpairmentMember"/>     
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_AccumulatedDepreciationAmortisationAndImpairmentMember_lbl" xml:lang="en-US">Accumulated Depreciation, Amortization and Impairment [Member]</label>   
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_AccumulatedDepreciationAmortisationAndImpairmentMember" xlink:to="ifrs-full_AccumulatedDepreciationAmortisationAndImpairmentMember_lbl"/>    
    <loc xlink:type="locator" xlink:label="gfr_DevelopedAndProducingMember" xlink:href="gfr-20251231.xsd#gfr_DevelopedAndProducingMember"/>     
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gfr_DevelopedAndProducingMember_lbl" xml:lang="en-US">Developed and Producing [Member]</label>     
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_DevelopedAndProducingMember" xlink:to="gfr_DevelopedAndProducingMember_lbl"/>   
    <loc xlink:type="locator" xlink:label="gfr_RightOfUseAssetsMember" xlink:href="gfr-20251231.xsd#gfr_RightOfUseAssetsMember"/>     
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gfr_RightOfUseAssetsMember_lbl" xml:lang="en-US">Right of Use Assets [Member]</label> 
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_RightOfUseAssetsMember" xlink:to="gfr_RightOfUseAssetsMember_lbl"/>   
    <loc xlink:type="locator" xlink:label="gfr_CorporateAssetsMember" xlink:href="gfr-20251231.xsd#gfr_CorporateAssetsMember"/>   
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gfr_CorporateAssetsMember_lbl" xml:lang="en-US">Corporate Assets [Member]</label>  
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_CorporateAssetsMember" xlink:to="gfr_CorporateAssetsMember_lbl"/> 
    <loc xlink:type="locator" xlink:label="gfr_UndepreciatedCapitalCostMember" xlink:href="gfr-20251231.xsd#gfr_UndepreciatedCapitalCostMember"/> 
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gfr_UndepreciatedCapitalCostMember_lbl" xml:lang="en-US">Undepreciated capital cost [Member]</label> 
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_UndepreciatedCapitalCostMember" xlink:to="gfr_UndepreciatedCapitalCostMember_lbl"/>    
    <loc xlink:type="locator" xlink:label="gfr_CanadianOilAndGasPropertyExpendituresMember" xlink:href="gfr-20251231.xsd#gfr_CanadianOilAndGasPropertyExpendituresMember"/>  
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gfr_CanadianOilAndGasPropertyExpendituresMember_lbl" xml:lang="en-US">Canadian oil and gas property expenditures [Member]</label>     
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_CanadianOilAndGasPropertyExpendituresMember" xlink:to="gfr_CanadianOilAndGasPropertyExpendituresMember_lbl"/>     
    <loc xlink:type="locator" xlink:label="gfr_CanadianExplorationExpendituresMember" xlink:href="gfr-20251231.xsd#gfr_CanadianExplorationExpendituresMember"/>     
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gfr_CanadianExplorationExpendituresMember_lbl" xml:lang="en-US">Canadian development expenditures [Member]</label>     
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_CanadianExplorationExpendituresMember" xlink:to="gfr_CanadianExplorationExpendituresMember_lbl"/>   
    <loc xlink:type="locator" xlink:label="gfr_FederalIncomeTaxLossesCarriedForwardMember" xlink:href="gfr-20251231.xsd#gfr_FederalIncomeTaxLossesCarriedForwardMember"/>     
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gfr_FederalIncomeTaxLossesCarriedForwardMember_lbl" xml:lang="en-US">Non-capital and other losses carried forward [Member]</label> 
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_FederalIncomeTaxLossesCarriedForwardMember" xlink:to="gfr_FederalIncomeTaxLossesCarriedForwardMember_lbl"/>   
    <loc xlink:type="locator" xlink:label="ifrs-full_OtherRelatedPartiesMember" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_OtherRelatedPartiesMember"/>  
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_OtherRelatedPartiesMember_lbl" xml:lang="en-US">Other [Member]</label> 
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_OtherRelatedPartiesMember" xlink:to="ifrs-full_OtherRelatedPartiesMember_lbl"/> 
    <loc xlink:type="locator" xlink:label="ifrs-full_BottomOfRangeMember" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_BottomOfRangeMember"/>     
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_BottomOfRangeMember_lbl" xml:lang="en-US">Bottom of range [member]</label>     
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_BottomOfRangeMember" xlink:to="ifrs-full_BottomOfRangeMember_lbl"/>    
    <loc xlink:type="locator" xlink:label="ifrs-full_TopOfRangeMember" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_TopOfRangeMember"/>    
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_TopOfRangeMember_lbl" xml:lang="en-US">Top of range [member]</label>    
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_TopOfRangeMember" xlink:to="ifrs-full_TopOfRangeMember_lbl"/>   
    <loc xlink:type="locator" xlink:label="ifrs-full_NotLaterThanOneYearMember" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_NotLaterThanOneYearMember"/>  
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_NotLaterThanOneYearMember_lbl" xml:lang="en-US">Within 1 year [Member]</label>    
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_NotLaterThanOneYearMember" xlink:to="ifrs-full_NotLaterThanOneYearMember_lbl"/> 
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ifrs-full_NotLaterThanOneYearMember_lbl0" xml:lang="en-US">Less than one year	[Member]</label>  
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_NotLaterThanOneYearMember" xlink:to="ifrs-full_NotLaterThanOneYearMember_lbl0"/>  
    <loc xlink:type="locator" xlink:label="ifrs-full_LaterThanFourYearsAndNotLaterThanFiveYearsMember" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_LaterThanFourYearsAndNotLaterThanFiveYearsMember"/>   
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_LaterThanFourYearsAndNotLaterThanFiveYearsMember_lbl" xml:lang="en-US">Within 2 to 5 years [Member]</label>   
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_LaterThanFourYearsAndNotLaterThanFiveYearsMember" xlink:to="ifrs-full_LaterThanFourYearsAndNotLaterThanFiveYearsMember_lbl"/>  
    <loc xlink:type="locator" xlink:label="ifrs-full_LaterThanFiveYearsMember" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_LaterThanFiveYearsMember"/>     
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_LaterThanFiveYearsMember_lbl" xml:lang="en-US">Later than 5 years [Member]</label>   
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_LaterThanFiveYearsMember" xlink:to="ifrs-full_LaterThanFiveYearsMember_lbl"/>    
    <loc xlink:type="locator" xlink:label="ifrs-full_WarrantsMember" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_WarrantsMember"/>     
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_WarrantsMember_lbl" xml:lang="en-US">Warrants [Member]</label>   
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_WarrantsMember" xlink:to="ifrs-full_WarrantsMember_lbl"/>    
    <loc xlink:type="locator" xlink:label="gfr_BlackScholesMertonValuationModelMember" xlink:href="gfr-20251231.xsd#gfr_BlackScholesMertonValuationModelMember"/>  
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gfr_BlackScholesMertonValuationModelMember_lbl" xml:lang="en-US">Black Scholes Merton Valuation Model [Member]</label>    
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_BlackScholesMertonValuationModelMember" xlink:to="gfr_BlackScholesMertonValuationModelMember_lbl"/>     
    <loc xlink:type="locator" xlink:label="gfr_DilutedBitumenSalesMember" xlink:href="gfr-20251231.xsd#gfr_DilutedBitumenSalesMember"/> 
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gfr_DilutedBitumenSalesMember_lbl" xml:lang="en-US">Diluted bitumen sales [Member]</label> 
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_DilutedBitumenSalesMember" xlink:to="gfr_DilutedBitumenSalesMember_lbl"/>    
    <loc xlink:type="locator" xlink:label="gfr_NonDilutedBitumenSalesMember" xlink:href="gfr-20251231.xsd#gfr_NonDilutedBitumenSalesMember"/>  
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gfr_NonDilutedBitumenSalesMember_lbl" xml:lang="en-US">Non-diluted bitumen sales [Member]</label>   
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_NonDilutedBitumenSalesMember" xlink:to="gfr_NonDilutedBitumenSalesMember_lbl"/>     
    <loc xlink:type="locator" xlink:label="gfr_PWsMember" xlink:href="gfr-20251231.xsd#gfr_PWsMember"/>    
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gfr_PWsMember_lbl" xml:lang="en-US">PWs [Member]</label>  
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_PWsMember" xlink:to="gfr_PWsMember_lbl"/>  
    <loc xlink:type="locator" xlink:label="gfr_RSUsMember" xlink:href="gfr-20251231.xsd#gfr_RSUsMember"/> 
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gfr_RSUsMember_lbl" xml:lang="en-US">RSUs [Member]</label>    
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_RSUsMember" xlink:to="gfr_RSUsMember_lbl"/>    
    <loc xlink:type="locator" xlink:label="gfr_PSUsMember" xlink:href="gfr-20251231.xsd#gfr_PSUsMember"/> 
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gfr_PSUsMember_lbl" xml:lang="en-US">PSUs [Member]</label>    
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_PSUsMember" xlink:to="gfr_PSUsMember_lbl"/>    
    <loc xlink:type="locator" xlink:label="gfr_DSUsMember" xlink:href="gfr-20251231.xsd#gfr_DSUsMember"/> 
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gfr_DSUsMember_lbl" xml:lang="en-US">DSUs [Member]</label>    
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_DSUsMember" xlink:to="gfr_DSUsMember_lbl"/>    
    <loc xlink:type="locator" xlink:label="gfr_RestrictedShareUnitsRSUsMember" xlink:href="gfr-20251231.xsd#gfr_RestrictedShareUnitsRSUsMember"/> 
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gfr_RestrictedShareUnitsRSUsMember_lbl" xml:lang="en-US">Restricted Share Units (RSUs) [Member]</label>    
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_RestrictedShareUnitsRSUsMember" xlink:to="gfr_RestrictedShareUnitsRSUsMember_lbl"/>    
    <loc xlink:type="locator" xlink:label="gfr_PerformanceShareUnitsPSUsMember" xlink:href="gfr-20251231.xsd#gfr_PerformanceShareUnitsPSUsMember"/>   
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gfr_PerformanceShareUnitsPSUsMember_lbl" xml:lang="en-US">Performance Share Units (PSUs) [Member]</label> 
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_PerformanceShareUnitsPSUsMember" xlink:to="gfr_PerformanceShareUnitsPSUsMember_lbl"/> 
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="gfr_PerformanceShareUnitsPSUsMember_lbl0" xml:lang="en-US">Performance Share Units (&#8220;PSUs&#8221;) [Member]</label>   
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_PerformanceShareUnitsPSUsMember" xlink:to="gfr_PerformanceShareUnitsPSUsMember_lbl0"/>  
    <loc xlink:type="locator" xlink:label="gfr_DeferredShareUnitsDSUsMember" xlink:href="gfr-20251231.xsd#gfr_DeferredShareUnitsDSUsMember"/>  
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gfr_DeferredShareUnitsDSUsMember_lbl" xml:lang="en-US">Deferred Share Units (DSUs) [Member]</label>     
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_DeferredShareUnitsDSUsMember" xlink:to="gfr_DeferredShareUnitsDSUsMember_lbl"/>     
    <loc xlink:type="locator" xlink:label="gfr_PerformanceWarrantsPWsMember" xlink:href="gfr-20251231.xsd#gfr_PerformanceWarrantsPWsMember"/>  
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gfr_PerformanceWarrantsPWsMember_lbl" xml:lang="en-US">Performance Warrants (PWs) [Member]</label>    
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_PerformanceWarrantsPWsMember" xlink:to="gfr_PerformanceWarrantsPWsMember_lbl"/>     
    <loc xlink:type="locator" xlink:label="ifrs-full_AtFairValueMember" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_AtFairValueMember"/> 
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_AtFairValueMember_lbl" xml:lang="en-US">Fair Value [Member]</label>   
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_AtFairValueMember" xlink:to="ifrs-full_AtFairValueMember_lbl"/>     
    <loc xlink:type="locator" xlink:label="gfr_CarryingValueMember" xlink:href="gfr-20251231.xsd#gfr_CarryingValueMember"/>    
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gfr_CarryingValueMember_lbl" xml:lang="en-US">Carrying Value [Member]</label>   
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_CarryingValueMember" xlink:to="gfr_CarryingValueMember_lbl"/>  
    <loc xlink:type="locator" xlink:label="gfr_WTIFixedPriceSwapMember" xlink:href="gfr-20251231.xsd#gfr_WTIFixedPriceSwapMember"/>  
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gfr_WTIFixedPriceSwapMember_lbl" xml:lang="en-US">WTI Fixed Price Swap [Member]</label>   
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_WTIFixedPriceSwapMember" xlink:to="gfr_WTIFixedPriceSwapMember_lbl"/>     
    <loc xlink:type="locator" xlink:label="gfr_FirstQuaterMember" xlink:href="gfr-20251231.xsd#gfr_FirstQuaterMember"/>     
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gfr_FirstQuaterMember_lbl" xml:lang="en-US">Q1 2026 [Member]</label>    
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_FirstQuaterMember" xlink:to="gfr_FirstQuaterMember_lbl"/>   
    <loc xlink:type="locator" xlink:label="gfr_CanadianDollarAndVolumesInBarrelsMember" xlink:href="gfr-20251231.xsd#gfr_CanadianDollarAndVolumesInBarrelsMember"/>    
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gfr_CanadianDollarAndVolumesInBarrelsMember_lbl" xml:lang="en-US">C$ / bbl [Member]</label>  
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_CanadianDollarAndVolumesInBarrelsMember" xlink:to="gfr_CanadianDollarAndVolumesInBarrelsMember_lbl"/>  
    <loc xlink:type="locator" xlink:label="gfr_WTICostlessCollarMember" xlink:href="gfr-20251231.xsd#gfr_WTICostlessCollarMember"/>  
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gfr_WTICostlessCollarMember_lbl" xml:lang="en-US">WTI-Costless Collar [Member]</label>  
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_WTICostlessCollarMember" xlink:to="gfr_WTICostlessCollarMember_lbl"/>     
    <loc xlink:type="locator" xlink:label="gfr_WCSDifferentialSwapMember" xlink:href="gfr-20251231.xsd#gfr_WCSDifferentialSwapMember"/> 
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gfr_WCSDifferentialSwapMember_lbl" xml:lang="en-US">WCS Differential Swap [Member]</label> 
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_WCSDifferentialSwapMember" xlink:to="gfr_WCSDifferentialSwapMember_lbl"/>    
    <loc xlink:type="locator" xlink:label="gfr_UnitedStatesDollarAndVolumesInBarrelsMember" xlink:href="gfr-20251231.xsd#gfr_UnitedStatesDollarAndVolumesInBarrelsMember"/>  
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gfr_UnitedStatesDollarAndVolumesInBarrelsMember_lbl" xml:lang="en-US">US$ / bbl [Member]</label>  
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_UnitedStatesDollarAndVolumesInBarrelsMember" xlink:to="gfr_UnitedStatesDollarAndVolumesInBarrelsMember_lbl"/>     
    <loc xlink:type="locator" xlink:label="gfr_AECOSwapMember" xlink:href="gfr-20251231.xsd#gfr_AECOSwapMember"/>    
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gfr_AECOSwapMember_lbl" xml:lang="en-US">AECO Swap [Member]</label>   
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_AECOSwapMember" xlink:to="gfr_AECOSwapMember_lbl"/>  
    <loc xlink:type="locator" xlink:label="gfr_CanadianDollarAndVolumesInGigajoulesMember" xlink:href="gfr-20251231.xsd#gfr_CanadianDollarAndVolumesInGigajoulesMember"/>     
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gfr_CanadianDollarAndVolumesInGigajoulesMember_lbl" xml:lang="en-US">C$ / GJ [Member]</label>    
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_CanadianDollarAndVolumesInGigajoulesMember" xlink:to="gfr_CanadianDollarAndVolumesInGigajoulesMember_lbl"/>   
    <loc xlink:type="locator" xlink:label="gfr_SecondQuarterMember" xlink:href="gfr-20251231.xsd#gfr_SecondQuarterMember"/>    
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gfr_SecondQuarterMember_lbl" xml:lang="en-US">Q2 2026 [Member]</label> 
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_SecondQuarterMember" xlink:to="gfr_SecondQuarterMember_lbl"/>  
    <loc xlink:type="locator" xlink:label="gfr_ThirdQuarterMember" xlink:href="gfr-20251231.xsd#gfr_ThirdQuarterMember"/>  
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gfr_ThirdQuarterMember_lbl" xml:lang="en-US">Q3 2026 [Member]</label>     
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_ThirdQuarterMember" xlink:to="gfr_ThirdQuarterMember_lbl"/>     
    <loc xlink:type="locator" xlink:label="gfr_FourthQuarterMember" xlink:href="gfr-20251231.xsd#gfr_FourthQuarterMember"/>    
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gfr_FourthQuarterMember_lbl" xml:lang="en-US">Q4 2026 [Member]</label> 
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_FourthQuarterMember" xlink:to="gfr_FourthQuarterMember_lbl"/>  
    <loc xlink:type="locator" xlink:label="gfr_TwoThousandTwentySixMember" xlink:href="gfr-20251231.xsd#gfr_TwoThousandTwentySixMember"/>   
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gfr_TwoThousandTwentySixMember_lbl" xml:lang="en-US">2026 [Member]</label>     
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_TwoThousandTwentySixMember" xlink:to="gfr_TwoThousandTwentySixMember_lbl"/> 
    <loc xlink:type="locator" xlink:label="gfr_TwoThousandTwentySevenMember" xlink:href="gfr-20251231.xsd#gfr_TwoThousandTwentySevenMember"/>  
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gfr_TwoThousandTwentySevenMember_lbl" xml:lang="en-US">2027 [Member]</label>  
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_TwoThousandTwentySevenMember" xlink:to="gfr_TwoThousandTwentySevenMember_lbl"/>     
    <loc xlink:type="locator" xlink:label="gfr_TwoThousandTwentyEightMember" xlink:href="gfr-20251231.xsd#gfr_TwoThousandTwentyEightMember"/>  
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gfr_TwoThousandTwentyEightMember_lbl" xml:lang="en-US">2028 [Member]</label>  
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_TwoThousandTwentyEightMember" xlink:to="gfr_TwoThousandTwentyEightMember_lbl"/>     
    <loc xlink:type="locator" xlink:label="gfr_TenPercentageChangeInCommodityPricesIncreaseMember" xlink:href="gfr-20251231.xsd#gfr_TenPercentageChangeInCommodityPricesIncreaseMember"/> 
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gfr_TenPercentageChangeInCommodityPricesIncreaseMember_lbl" xml:lang="en-US">10% change in commodity prices Increase [Member]</label>    
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_TenPercentageChangeInCommodityPricesIncreaseMember" xlink:to="gfr_TenPercentageChangeInCommodityPricesIncreaseMember_lbl"/>    
    <loc xlink:type="locator" xlink:label="gfr_TenPercentageChangeInCommodityPricesDecreaseMember" xlink:href="gfr-20251231.xsd#gfr_TenPercentageChangeInCommodityPricesDecreaseMember"/> 
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gfr_TenPercentageChangeInCommodityPricesDecreaseMember_lbl" xml:lang="en-US">10% change in commodity prices Decrease [Member]</label>    
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_TenPercentageChangeInCommodityPricesDecreaseMember" xlink:to="gfr_TenPercentageChangeInCommodityPricesDecreaseMember_lbl"/>    
    <loc xlink:type="locator" xlink:label="ifrs-full_LaterThanOneYearMember" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_LaterThanOneYearMember"/> 
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_LaterThanOneYearMember_lbl" xml:lang="en-US">Greater than one year [Member]</label>    
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_LaterThanOneYearMember" xlink:to="ifrs-full_LaterThanOneYearMember_lbl"/>     
    <loc xlink:type="locator" xlink:label="gfr_TwoThousandTwentyNineMember" xlink:href="gfr-20251231.xsd#gfr_TwoThousandTwentyNineMember"/>     
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gfr_TwoThousandTwentyNineMember_lbl" xml:lang="en-US">2029 [Member]</label> 
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_TwoThousandTwentyNineMember" xlink:to="gfr_TwoThousandTwentyNineMember_lbl"/>   
    <loc xlink:type="locator" xlink:label="gfr_TwoThousandThirtyMember" xlink:href="gfr-20251231.xsd#gfr_TwoThousandThirtyMember"/>  
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gfr_TwoThousandThirtyMember_lbl" xml:lang="en-US">2030 [Member]</label>  
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_TwoThousandThirtyMember" xlink:to="gfr_TwoThousandThirtyMember_lbl"/>     
    <loc xlink:type="locator" xlink:label="gfr_PastTwoThousandThirtyMember" xlink:href="gfr-20251231.xsd#gfr_PastTwoThousandThirtyMember"/>     
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gfr_PastTwoThousandThirtyMember_lbl" xml:lang="en-US">Past 2030 [Member]</label> 
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_PastTwoThousandThirtyMember" xlink:to="gfr_PastTwoThousandThirtyMember_lbl"/>   
    <loc xlink:type="locator" xlink:label="ifrs-full_ClassesOfShareCapitalAxis" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_ClassesOfShareCapitalAxis"/>  
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_ClassesOfShareCapitalAxis_lbl" xml:lang="en-US">Classes of share capital [axis]</label>   
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_ClassesOfShareCapitalAxis" xlink:to="ifrs-full_ClassesOfShareCapitalAxis_lbl"/> 
    <loc xlink:type="locator" xlink:label="ifrs-full_TypesOfAntidilutiveInstrumentsAxis" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_TypesOfAntidilutiveInstrumentsAxis"/>     
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_TypesOfAntidilutiveInstrumentsAxis_lbl" xml:lang="en-US">Types of antidilutive instruments [axis]</label> 
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_TypesOfAntidilutiveInstrumentsAxis" xlink:to="ifrs-full_TypesOfAntidilutiveInstrumentsAxis_lbl"/>    
    <loc xlink:type="locator" xlink:label="srt_ConsolidatedEntitiesAxis" xlink:href="https://xbrl.fasb.org/srt/2025/elts/srt-2025.xsd#srt_ConsolidatedEntitiesAxis"/> 
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="srt_ConsolidatedEntitiesAxis_lbl" xml:lang="en-US">Consolidated Entities [Axis]</label>   
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="srt_ConsolidatedEntitiesAxis" xlink:to="srt_ConsolidatedEntitiesAxis_lbl"/>  
    <loc xlink:type="locator" xlink:label="ifrs-full_GeographicalAreasAxis" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_GeographicalAreasAxis"/>    
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_GeographicalAreasAxis_lbl" xml:lang="en-US">Geographical areas [axis]</label>   
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_GeographicalAreasAxis" xlink:to="ifrs-full_GeographicalAreasAxis_lbl"/>   
    <loc xlink:type="locator" xlink:label="ifrs-full_BorrowingsByNameAxis" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_BorrowingsByNameAxis"/>  
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_BorrowingsByNameAxis_lbl" xml:lang="en-US">Borrowings by name [axis]</label>  
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_BorrowingsByNameAxis" xlink:to="ifrs-full_BorrowingsByNameAxis_lbl"/> 
    <loc xlink:type="locator" xlink:label="ifrs-full_NonadjustingEventsAfterReportingPeriodAxis" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_NonadjustingEventsAfterReportingPeriodAxis"/> 
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_NonadjustingEventsAfterReportingPeriodAxis_lbl" xml:lang="en-US">Non-adjusting events after reporting period [axis]</label>    
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_NonadjustingEventsAfterReportingPeriodAxis" xlink:to="ifrs-full_NonadjustingEventsAfterReportingPeriodAxis_lbl"/>     
    <loc xlink:type="locator" xlink:label="ifrs-full_ClassesOfProvisionsAxis" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_ClassesOfProvisionsAxis"/>   
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_ClassesOfProvisionsAxis_lbl" xml:lang="en-US">Classes of other provisions [axis]</label>    
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_ClassesOfProvisionsAxis" xlink:to="ifrs-full_ClassesOfProvisionsAxis_lbl"/>  
    <loc xlink:type="locator" xlink:label="us-gaap_AccountingPoliciesAbstract" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_AccountingPoliciesAbstract"/> 
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_AccountingPoliciesAbstract_lbl" xml:lang="en-US">Accounting Policies [Abstract]</label> 
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_AccountingPoliciesAbstract" xlink:to="us-gaap_AccountingPoliciesAbstract_lbl"/>    
    <loc xlink:type="locator" xlink:label="gfr_OutstandingCommonSharesPercentage" xlink:href="gfr-20251231.xsd#gfr_OutstandingCommonSharesPercentage"/>  
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gfr_OutstandingCommonSharesPercentage_lbl" xml:lang="en-US">Percentage of common shares</label> 
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_OutstandingCommonSharesPercentage" xlink:to="gfr_OutstandingCommonSharesPercentage_lbl"/>     
    <loc xlink:type="locator" xlink:label="gfr_CommonSharesLimitedPartnershipOwnershipPercentage" xlink:href="gfr-20251231.xsd#gfr_CommonSharesLimitedPartnershipOwnershipPercentage"/>    
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gfr_CommonSharesLimitedPartnershipOwnershipPercentage_lbl" xml:lang="en-US">Percentage of common shares owned</label>   
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_CommonSharesLimitedPartnershipOwnershipPercentage" xlink:to="gfr_CommonSharesLimitedPartnershipOwnershipPercentage_lbl"/>  
    <loc xlink:type="locator" xlink:label="gfr_WorkingInterestPercentage" xlink:href="gfr-20251231.xsd#gfr_WorkingInterestPercentage"/> 
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gfr_WorkingInterestPercentage_lbl" xml:lang="en-US">Working interest percentage</label>   
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_WorkingInterestPercentage" xlink:to="gfr_WorkingInterestPercentage_lbl"/>    
    <loc xlink:type="locator" xlink:label="gfr_NumberOfReportableOperatingSegment" xlink:href="gfr-20251231.xsd#gfr_NumberOfReportableOperatingSegment"/>    
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gfr_NumberOfReportableOperatingSegment_lbl" xml:lang="en-US">Number of reportable operating segment (in segment)</label> 
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_NumberOfReportableOperatingSegment" xlink:to="gfr_NumberOfReportableOperatingSegment_lbl"/>  
    <loc xlink:type="locator" xlink:label="gfr_StockBasedCompensation" xlink:href="gfr-20251231.xsd#gfr_StockBasedCompensation"/>     
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gfr_StockBasedCompensation_lbl" xml:lang="en-US">Performance warrants</label>   
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_StockBasedCompensation" xlink:to="gfr_StockBasedCompensation_lbl"/>   
    <loc xlink:type="locator" xlink:label="gfr_ShareBasedCompensations" xlink:href="gfr-20251231.xsd#gfr_ShareBasedCompensations"/>  
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gfr_ShareBasedCompensations_lbl" xml:lang="en-US">Deferred share units</label>    
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_ShareBasedCompensations" xlink:to="gfr_ShareBasedCompensations_lbl"/>     
    <loc xlink:type="locator" xlink:label="ifrs-full_InventoriesTotal" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_InventoriesTotal"/>    
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_InventoriesTotal_lbl" xml:lang="en-US">Inventories</label>    
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_InventoriesTotal" xlink:to="ifrs-full_InventoriesTotal_lbl"/>   
    <loc xlink:type="locator" xlink:label="ifrs-full_InventoriesAtNetRealisableValue" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_InventoriesAtNetRealisableValue"/>    
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_InventoriesAtNetRealisableValue_lbl" xml:lang="en-US">Capitalized to inventory</label>  
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_InventoriesAtNetRealisableValue" xlink:to="ifrs-full_InventoriesAtNetRealisableValue_lbl"/>   
    <loc xlink:type="locator" xlink:label="ifrs-full_PropertyPlantAndEquipmentExpendituresRecognisedForConstructions" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_PropertyPlantAndEquipmentExpendituresRecognisedForConstructions"/>   
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_PropertyPlantAndEquipmentExpendituresRecognisedForConstructions_lbl" xml:lang="en-US">Consideration value</label>    
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_PropertyPlantAndEquipmentExpendituresRecognisedForConstructions" xlink:to="ifrs-full_PropertyPlantAndEquipmentExpendituresRecognisedForConstructions_lbl"/>  
    <loc xlink:type="locator" xlink:label="ifrs-full_ChangesInPropertyPlantAndEquipment" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_ChangesInPropertyPlantAndEquipment"/>     
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_ChangesInPropertyPlantAndEquipment_lbl" xml:lang="en-US">Increase in PP&amp;E</label> 
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_ChangesInPropertyPlantAndEquipment" xlink:to="ifrs-full_ChangesInPropertyPlantAndEquipment_lbl"/>    
    <loc xlink:type="locator" xlink:label="gfr_DecommissioningObligations" xlink:href="gfr-20251231.xsd#gfr_DecommissioningObligations"/>   
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gfr_DecommissioningObligations_lbl" xml:lang="en-US">Decommissioning obligations</label>    
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_DecommissioningObligations" xlink:to="gfr_DecommissioningObligations_lbl"/> 
    <loc xlink:type="locator" xlink:label="ifrs-full_AverageEffectiveTaxRate" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_AverageEffectiveTaxRate"/>   
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_AverageEffectiveTaxRate_lbl" xml:lang="en-US">Statutory rate, percentage</label> 
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_AverageEffectiveTaxRate" xlink:to="ifrs-full_AverageEffectiveTaxRate_lbl"/>  
    <loc xlink:type="locator" xlink:label="gfr_IncomeTaxLossesCarriedForward" xlink:href="gfr-20251231.xsd#gfr_IncomeTaxLossesCarriedForward"/>    
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gfr_IncomeTaxLossesCarriedForward_lbl" xml:lang="en-US">Income tax losses carried forward (in Dollars)</label> 
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_IncomeTaxLossesCarriedForward" xlink:to="gfr_IncomeTaxLossesCarriedForward_lbl"/>  
    <loc xlink:type="locator" xlink:label="gfr_OperatingFacilities" xlink:href="gfr-20251231.xsd#gfr_OperatingFacilities"/>    
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gfr_OperatingFacilities_lbl" xml:lang="en-US">Operating facility</label>   
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_OperatingFacilities" xlink:to="gfr_OperatingFacilities_lbl"/>  
    <loc xlink:type="locator" xlink:label="gfr_SyndicatedFacility" xlink:href="gfr-20251231.xsd#gfr_SyndicatedFacility"/>  
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gfr_SyndicatedFacility_lbl" xml:lang="en-US">Syndicated facility</label>   
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_SyndicatedFacility" xlink:to="gfr_SyndicatedFacility_lbl"/>     
    <loc xlink:type="locator" xlink:label="gfr_CreditFacility" xlink:href="gfr-20251231.xsd#gfr_CreditFacility"/>    
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gfr_CreditFacility_lbl" xml:lang="en-US">Credit facility</label>     
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_CreditFacility" xlink:to="gfr_CreditFacility_lbl"/>  
    <loc xlink:type="locator" xlink:label="gfr_MaturityDateOfSeniorCreditFacility" xlink:href="gfr-20251231.xsd#gfr_MaturityDateOfSeniorCreditFacility"/>    
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gfr_MaturityDateOfSeniorCreditFacility_lbl" xml:lang="en-US">Maturity date of senior credit facility</label>    
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_MaturityDateOfSeniorCreditFacility" xlink:to="gfr_MaturityDateOfSeniorCreditFacility_lbl"/>  
    <loc xlink:type="locator" xlink:label="gfr_SecuredNotesIssued" xlink:href="gfr-20251231.xsd#gfr_SecuredNotesIssued"/>  
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gfr_SecuredNotesIssued_lbl" xml:lang="en-US">Secured notes issued (in Dollars)</label>  
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_SecuredNotesIssued" xlink:to="gfr_SecuredNotesIssued_lbl"/>     
    <loc xlink:type="locator" xlink:label="gfr_WarrantsFixedInterestRate" xlink:href="gfr-20251231.xsd#gfr_WarrantsFixedInterestRate"/> 
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gfr_WarrantsFixedInterestRate_lbl" xml:lang="en-US">Interest fixed rate</label>     
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_WarrantsFixedInterestRate" xlink:to="gfr_WarrantsFixedInterestRate_lbl"/>    
    <loc xlink:type="locator" xlink:label="gfr_MaturityDate" xlink:href="gfr-20251231.xsd#gfr_MaturityDate"/>     
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gfr_MaturityDate_lbl" xml:lang="en-US">Maturity date</label> 
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_MaturityDate" xlink:to="gfr_MaturityDate_lbl"/>   
    <loc xlink:type="locator" xlink:label="gfr_PercentageOfVoluntarilyRedeemedPrincipalAmount" xlink:href="gfr-20251231.xsd#gfr_PercentageOfVoluntarilyRedeemedPrincipalAmount"/>   
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gfr_PercentageOfVoluntarilyRedeemedPrincipalAmount_lbl" xml:lang="en-US">Voluntarily redeemed percentage</label>   
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_PercentageOfVoluntarilyRedeemedPrincipalAmount" xlink:to="gfr_PercentageOfVoluntarilyRedeemedPrincipalAmount_lbl"/> 
    <loc xlink:type="locator" xlink:label="gfr_MinimumHedgingRequirementsPercentage" xlink:href="gfr-20251231.xsd#gfr_MinimumHedgingRequirementsPercentage"/>   
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gfr_MinimumHedgingRequirementsPercentage_lbl" xml:lang="en-US">Hedging requirements percentage</label>   
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_MinimumHedgingRequirementsPercentage" xlink:to="gfr_MinimumHedgingRequirementsPercentage_lbl"/> 
    <loc xlink:type="locator" xlink:label="gfr_AnnualCapitalExpenditureLimitation" xlink:href="gfr-20251231.xsd#gfr_AnnualCapitalExpenditureLimitation"/>    
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gfr_AnnualCapitalExpenditureLimitation_lbl" xml:lang="en-US">Annual capital expenditure limitation</label>  
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_AnnualCapitalExpenditureLimitation" xlink:to="gfr_AnnualCapitalExpenditureLimitation_lbl"/>  
    <loc xlink:type="locator" xlink:label="gfr_PrincipalAmountPercentage" xlink:href="gfr-20251231.xsd#gfr_PrincipalAmountPercentage"/> 
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gfr_PrincipalAmountPercentage_lbl" xml:lang="en-US">Principal amount percentage</label>   
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_PrincipalAmountPercentage" xlink:to="gfr_PrincipalAmountPercentage_lbl"/>    
    <loc xlink:type="locator" xlink:label="gfr_LimitCapitalExpenditures" xlink:href="gfr-20251231.xsd#gfr_LimitCapitalExpenditures"/>    
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gfr_LimitCapitalExpenditures_lbl" xml:lang="en-US">Capital expenditures (in Dollars)</label>   
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_LimitCapitalExpenditures" xlink:to="gfr_LimitCapitalExpenditures_lbl"/>  
    <loc xlink:type="locator" xlink:label="gfr_OutstandingPrincipalPercentage" xlink:href="gfr-20251231.xsd#gfr_OutstandingPrincipalPercentage"/> 
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gfr_OutstandingPrincipalPercentage_lbl" xml:lang="en-US">Outstanding principal, percentage</label>    
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_OutstandingPrincipalPercentage" xlink:to="gfr_OutstandingPrincipalPercentage_lbl"/>    
    <loc xlink:type="locator" xlink:label="gfr_UnsecuredCreditFacility" xlink:href="gfr-20251231.xsd#gfr_UnsecuredCreditFacility"/>  
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gfr_UnsecuredCreditFacility_lbl" xml:lang="en-US">Unsecured credit facility</label>    
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_UnsecuredCreditFacility" xlink:to="gfr_UnsecuredCreditFacility_lbl"/>     
    <loc xlink:type="locator" xlink:label="gfr_LettersOfCreditOutstanding" xlink:href="gfr-20251231.xsd#gfr_LettersOfCreditOutstanding"/>   
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gfr_LettersOfCreditOutstanding_lbl" xml:lang="en-US">Letters of credit outstanding</label> 
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_LettersOfCreditOutstanding" xlink:to="gfr_LettersOfCreditOutstanding_lbl"/> 
    <loc xlink:type="locator" xlink:label="gfr_CapitalExpendituresPrincipalOutstanding" xlink:href="gfr-20251231.xsd#gfr_CapitalExpendituresPrincipalOutstanding"/>    
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gfr_CapitalExpendituresPrincipalOutstanding_lbl" xml:lang="en-US">Capital Expenditures Principal Outstanding (in Dollars)</label>     
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_CapitalExpendituresPrincipalOutstanding" xlink:to="gfr_CapitalExpendituresPrincipalOutstanding_lbl"/>  
    <loc xlink:type="locator" xlink:label="gfr_DecommissioningObligationsValue" xlink:href="gfr-20251231.xsd#gfr_DecommissioningObligationsValue"/>   
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gfr_DecommissioningObligationsValue_lbl" xml:lang="en-US">Decommissioning obligations (in Dollars)</label>  
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_DecommissioningObligationsValue" xlink:to="gfr_DecommissioningObligationsValue_lbl"/> 
    <loc xlink:type="locator" xlink:label="ifrs-full_ProvisionForDecommissioningRestorationAndRehabilitationCosts" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_ProvisionForDecommissioningRestorationAndRehabilitationCosts"/>  
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_ProvisionForDecommissioningRestorationAndRehabilitationCosts_lbl" xml:lang="en-US">Decommissioning liabilities (in Dollars)</label>  
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_ProvisionForDecommissioningRestorationAndRehabilitationCosts" xlink:to="ifrs-full_ProvisionForDecommissioningRestorationAndRehabilitationCosts_lbl"/> 
    <loc xlink:type="locator" xlink:label="ifrs-full_ActuarialAssumptionOfDiscountRates" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_ActuarialAssumptionOfDiscountRates"/>     
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_ActuarialAssumptionOfDiscountRates_lbl" xml:lang="en-US">Discount rate</label>    
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_ActuarialAssumptionOfDiscountRates" xlink:to="ifrs-full_ActuarialAssumptionOfDiscountRates_lbl"/>    
    <loc xlink:type="locator" xlink:label="ifrs-full_ActuarialAssumptionOfExpectedRatesOfInflation" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_ActuarialAssumptionOfExpectedRatesOfInflation"/>  
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_ActuarialAssumptionOfExpectedRatesOfInflation_lbl" xml:lang="en-US">Inflation rate</label> 
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_ActuarialAssumptionOfExpectedRatesOfInflation" xlink:to="ifrs-full_ActuarialAssumptionOfExpectedRatesOfInflation_lbl"/> 
    <loc xlink:type="locator" xlink:label="gfr_CreditAdjustedDiscountRatePercentage" xlink:href="gfr-20251231.xsd#gfr_CreditAdjustedDiscountRatePercentage"/>   
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gfr_CreditAdjustedDiscountRatePercentage_lbl" xml:lang="en-US">Credit-adjusted discount rate, percentage</label>   
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_CreditAdjustedDiscountRatePercentage" xlink:to="gfr_CreditAdjustedDiscountRatePercentage_lbl"/> 
    <loc xlink:type="locator" xlink:label="gfr_WarrantsIssued" xlink:href="gfr-20251231.xsd#gfr_WarrantsIssued"/>    
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gfr_WarrantsIssued_lbl" xml:lang="en-US">Warrants issued</label>     
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_WarrantsIssued" xlink:to="gfr_WarrantsIssued_lbl"/>  
    <loc xlink:type="locator" xlink:label="gfr_NumberOfCommonShares" xlink:href="gfr-20251231.xsd#gfr_NumberOfCommonShares"/> 
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gfr_NumberOfCommonShares_lbl" xml:lang="en-US">Common share</label>   
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_NumberOfCommonShares" xlink:to="gfr_NumberOfCommonShares_lbl"/>    
    <loc xlink:type="locator" xlink:label="gfr_ClassOfWarrantsOrRightsExercisePrice" xlink:href="gfr-20251231.xsd#gfr_ClassOfWarrantsOrRightsExercisePrice"/>   
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gfr_ClassOfWarrantsOrRightsExercisePrice_lbl" xml:lang="en-US">Warrants exercise price (in Dollars per share)</label>   
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_ClassOfWarrantsOrRightsExercisePrice" xlink:to="gfr_ClassOfWarrantsOrRightsExercisePrice_lbl"/> 
    <loc xlink:type="locator" xlink:label="gfr_CommonSharePricePerShare" xlink:href="gfr-20251231.xsd#gfr_CommonSharePricePerShare"/>    
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gfr_CommonSharePricePerShare_lbl" xml:lang="en-US">Common shares exercise price (in Dollars per share)</label> 
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_CommonSharePricePerShare" xlink:to="gfr_CommonSharePricePerShare_lbl"/>  
    <loc xlink:type="locator" xlink:label="gfr_WarrantsAndRightOutstandingTerm" xlink:href="gfr-20251231.xsd#gfr_WarrantsAndRightOutstandingTerm"/>   
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gfr_WarrantsAndRightOutstandingTerm_lbl" xml:lang="en-US">Outstanding warrants expire term</label>    
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_WarrantsAndRightOutstandingTerm" xlink:to="gfr_WarrantsAndRightOutstandingTerm_lbl"/> 
    <loc xlink:type="locator" xlink:label="gfr_NumberOfOutstandingShareUnitsWereExercisable" xlink:href="gfr-20251231.xsd#gfr_NumberOfOutstandingShareUnitsWereExercisable"/>    
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gfr_NumberOfOutstandingShareUnitsWereExercisable_lbl" xml:lang="en-US">Number of outstanding share units were exercisable</label>     
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_NumberOfOutstandingShareUnitsWereExercisable" xlink:to="gfr_NumberOfOutstandingShareUnitsWereExercisable_lbl"/>  
    <loc xlink:type="locator" xlink:label="gfr_NumberOfPerformanceWarrantsOutstanding" xlink:href="gfr-20251231.xsd#gfr_NumberOfPerformanceWarrantsOutstanding"/>  
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gfr_NumberOfPerformanceWarrantsOutstanding_lbl" xml:lang="en-US">Number of outstanding warrants</label>    
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_NumberOfPerformanceWarrantsOutstanding" xlink:to="gfr_NumberOfPerformanceWarrantsOutstanding_lbl"/>     
    <loc xlink:type="locator" xlink:label="ifrs-full_WeightedAverageExercisePriceOfShareOptionsOutstandingInSharebasedPaymentArrangement2019" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_WeightedAverageExercisePriceOfShareOptionsOutstandingInSharebasedPaymentArrangement2019"/> 
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_WeightedAverageExercisePriceOfShareOptionsOutstandingInSharebasedPaymentArrangement2019_lbl" xml:lang="en-US">Weighted average exercise price (in Dollars per share)</label>   
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_WeightedAverageExercisePriceOfShareOptionsOutstandingInSharebasedPaymentArrangement2019" xlink:to="ifrs-full_WeightedAverageExercisePriceOfShareOptionsOutstandingInSharebasedPaymentArrangement2019_lbl"/>     
    <loc xlink:type="locator" xlink:label="ifrs-full_ForeignExchangeGain" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_ForeignExchangeGain"/>     
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_ForeignExchangeGain_lbl" xml:lang="en-US">Net foreign exchange risk exposure (in Dollars)</label>   
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_ForeignExchangeGain" xlink:to="ifrs-full_ForeignExchangeGain_lbl"/>    
    <loc xlink:type="locator" xlink:label="ifrs-full_TaxRateEffectOfForeignTaxRates" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_TaxRateEffectOfForeignTaxRates"/>  
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_TaxRateEffectOfForeignTaxRates_lbl" xml:lang="en-US">Percentage of foreign exchange</label>  
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_TaxRateEffectOfForeignTaxRates" xlink:to="ifrs-full_TaxRateEffectOfForeignTaxRates_lbl"/> 
    <loc xlink:type="locator" xlink:label="ifrs-full_GainsLossesOnExchangeDifferencesOnTranslationRecognisedInProfitOrLoss" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_GainsLossesOnExchangeDifferencesOnTranslationRecognisedInProfitOrLoss"/>     
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_GainsLossesOnExchangeDifferencesOnTranslationRecognisedInProfitOrLoss_lbl" xml:lang="en-US">Foreign exchange gain or loss (in Dollars)</label>   
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_GainsLossesOnExchangeDifferencesOnTranslationRecognisedInProfitOrLoss" xlink:to="ifrs-full_GainsLossesOnExchangeDifferencesOnTranslationRecognisedInProfitOrLoss_lbl"/>    
    <loc xlink:type="locator" xlink:label="gfr_TradeReceivablesPercentage" xlink:href="gfr-20251231.xsd#gfr_TradeReceivablesPercentage"/>   
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gfr_TradeReceivablesPercentage_lbl" xml:lang="en-US">Trade receivables percentage</label>     
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_TradeReceivablesPercentage" xlink:to="gfr_TradeReceivablesPercentage_lbl"/> 
    <loc xlink:type="locator" xlink:label="gfr_PercentageOfInterestReceivables" xlink:href="gfr-20251231.xsd#gfr_PercentageOfInterestReceivables"/>   
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gfr_PercentageOfInterestReceivables_lbl" xml:lang="en-US">Interest receivables percentage</label>   
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_PercentageOfInterestReceivables" xlink:to="gfr_PercentageOfInterestReceivables_lbl"/> 
    <loc xlink:type="locator" xlink:label="ifrs-full_LoansReceived" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_LoansReceived"/>   
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_LoansReceived_lbl" xml:lang="en-US">Received amount (in Dollars)</label>   
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_LoansReceived" xlink:to="ifrs-full_LoansReceived_lbl"/>  
    <loc xlink:type="locator" xlink:label="ifrs-full_LeaseCommitmentsForShorttermLeasesForWhichRecognitionExemptionHasBeenUsed" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_LeaseCommitmentsForShorttermLeasesForWhichRecognitionExemptionHasBeenUsed"/>   
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_LeaseCommitmentsForShorttermLeasesForWhichRecognitionExemptionHasBeenUsed_lbl" xml:lang="en-US">Lease agreements</label> 
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_LeaseCommitmentsForShorttermLeasesForWhichRecognitionExemptionHasBeenUsed" xlink:to="ifrs-full_LeaseCommitmentsForShorttermLeasesForWhichRecognitionExemptionHasBeenUsed_lbl"/>  
    <loc xlink:type="locator" xlink:label="gfr_NumberOfCommonStockReceivedOnExerciseOfWarrants" xlink:href="gfr-20251231.xsd#gfr_NumberOfCommonStockReceivedOnExerciseOfWarrants"/>     
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gfr_NumberOfCommonStockReceivedOnExerciseOfWarrants_lbl" xml:lang="en-US">Number of common stock received on exercise of performance warrants</label>     
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_NumberOfCommonStockReceivedOnExerciseOfWarrants" xlink:to="gfr_NumberOfCommonStockReceivedOnExerciseOfWarrants_lbl"/>   
    <loc xlink:type="locator" xlink:label="gfr_NumberOfSharesUnits" xlink:href="gfr-20251231.xsd#gfr_NumberOfSharesUnits"/>    
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gfr_NumberOfSharesUnits_lbl" xml:lang="en-US">Number of shares units</label>  
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_NumberOfSharesUnits" xlink:to="gfr_NumberOfSharesUnits_lbl"/>  
    <loc xlink:type="locator" xlink:label="gfr_CurrentLegalFees" xlink:href="gfr-20251231.xsd#gfr_CurrentLegalFees"/>   
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gfr_CurrentLegalFees_lbl" xml:lang="en-US">Legal fees (in Dollars)</label>     
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_CurrentLegalFees" xlink:to="gfr_CurrentLegalFees_lbl"/> 
    <loc xlink:type="locator" xlink:label="gfr_NumberOfStockIssuedToRelatedParty" xlink:href="gfr-20251231.xsd#gfr_NumberOfStockIssuedToRelatedParty"/>  
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gfr_NumberOfStockIssuedToRelatedParty_lbl" xml:lang="en-US">Shares issued</label>  
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_NumberOfStockIssuedToRelatedParty" xlink:to="gfr_NumberOfStockIssuedToRelatedParty_lbl"/>     
    <loc xlink:type="locator" xlink:label="gfr_FairMarketValueOfConsultingService" xlink:href="gfr-20251231.xsd#gfr_FairMarketValueOfConsultingService"/>    
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gfr_FairMarketValueOfConsultingService_lbl" xml:lang="en-US">Fair market value of consulting services (in Dollars)</label>   
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_FairMarketValueOfConsultingService" xlink:to="gfr_FairMarketValueOfConsultingService_lbl"/>  
    <loc xlink:type="locator" xlink:label="gfr_DescriptionOfAccountingPoliciesForPrinciplesOfConsolidationTextBlock" xlink:href="gfr-20251231.xsd#gfr_DescriptionOfAccountingPoliciesForPrinciplesOfConsolidationTextBlock"/>  
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gfr_DescriptionOfAccountingPoliciesForPrinciplesOfConsolidationTextBlock_lbl" xml:lang="en-US">Principles of consolidation</label> 
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_DescriptionOfAccountingPoliciesForPrinciplesOfConsolidationTextBlock" xlink:to="gfr_DescriptionOfAccountingPoliciesForPrinciplesOfConsolidationTextBlock_lbl"/>     
    <loc xlink:type="locator" xlink:label="gfr_DescriptionOfAccountingPolicyForJointArrangementsTextBlock" xlink:href="gfr-20251231.xsd#gfr_DescriptionOfAccountingPolicyForJointArrangementsTextBlock"/>  
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gfr_DescriptionOfAccountingPolicyForJointArrangementsTextBlock_lbl" xml:lang="en-US">Joint arrangements</label>  
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_DescriptionOfAccountingPolicyForJointArrangementsTextBlock" xlink:to="gfr_DescriptionOfAccountingPolicyForJointArrangementsTextBlock_lbl"/>     
    <loc xlink:type="locator" xlink:label="ifrs-full_DescriptionOfAccountingPolicyForForeignCurrencyTranslationExplanatory" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DescriptionOfAccountingPolicyForForeignCurrencyTranslationExplanatory"/>     
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_DescriptionOfAccountingPolicyForForeignCurrencyTranslationExplanatory_lbl" xml:lang="en-US">Foreign currency translation</label>    
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_DescriptionOfAccountingPolicyForForeignCurrencyTranslationExplanatory" xlink:to="ifrs-full_DescriptionOfAccountingPolicyForForeignCurrencyTranslationExplanatory_lbl"/>    
    <loc xlink:type="locator" xlink:label="ifrs-full_DescriptionOfAccountingPolicyForSegmentReportingExplanatory" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DescriptionOfAccountingPolicyForSegmentReportingExplanatory"/>     
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_DescriptionOfAccountingPolicyForSegmentReportingExplanatory_lbl" xml:lang="en-US">Operating segments</label>    
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_DescriptionOfAccountingPolicyForSegmentReportingExplanatory" xlink:to="ifrs-full_DescriptionOfAccountingPolicyForSegmentReportingExplanatory_lbl"/>    
    <loc xlink:type="locator" xlink:label="ifrs-full_DescriptionOfAccountingPolicyForFinancialInstrumentsExplanatory" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DescriptionOfAccountingPolicyForFinancialInstrumentsExplanatory"/>   
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_DescriptionOfAccountingPolicyForFinancialInstrumentsExplanatory_lbl" xml:lang="en-US">Financial instruments</label> 
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_DescriptionOfAccountingPolicyForFinancialInstrumentsExplanatory" xlink:to="ifrs-full_DescriptionOfAccountingPolicyForFinancialInstrumentsExplanatory_lbl"/>  
    <loc xlink:type="locator" xlink:label="ifrs-full_DescriptionOfAccountingPolicyForFairValueMeasurementExplanatory" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DescriptionOfAccountingPolicyForFairValueMeasurementExplanatory"/>   
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_DescriptionOfAccountingPolicyForFairValueMeasurementExplanatory_lbl" xml:lang="en-US">Fair value measurement</label>  
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_DescriptionOfAccountingPolicyForFairValueMeasurementExplanatory" xlink:to="ifrs-full_DescriptionOfAccountingPolicyForFairValueMeasurementExplanatory_lbl"/>  
    <loc xlink:type="locator" xlink:label="ifrs-full_DescriptionOfAccountingPolicyForRecognitionOfRevenue" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DescriptionOfAccountingPolicyForRecognitionOfRevenue"/> 
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_DescriptionOfAccountingPolicyForRecognitionOfRevenue_lbl" xml:lang="en-US">Revenue</label> 
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_DescriptionOfAccountingPolicyForRecognitionOfRevenue" xlink:to="ifrs-full_DescriptionOfAccountingPolicyForRecognitionOfRevenue_lbl"/>     
    <loc xlink:type="locator" xlink:label="ifrs-full_DescriptionOfAccountingPolicyForMeasuringInventories" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DescriptionOfAccountingPolicyForMeasuringInventories"/> 
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_DescriptionOfAccountingPolicyForMeasuringInventories_lbl" xml:lang="en-US">Inventories</label>     
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_DescriptionOfAccountingPolicyForMeasuringInventories" xlink:to="ifrs-full_DescriptionOfAccountingPolicyForMeasuringInventories_lbl"/>     
    <loc xlink:type="locator" xlink:label="ifrs-full_DescriptionOfAccountingPolicyForEmissionRightsExplanatory" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DescriptionOfAccountingPolicyForEmissionRightsExplanatory"/> 
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_DescriptionOfAccountingPolicyForEmissionRightsExplanatory_lbl" xml:lang="en-US">Emissions liabilities and credits</label>  
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_DescriptionOfAccountingPolicyForEmissionRightsExplanatory" xlink:to="ifrs-full_DescriptionOfAccountingPolicyForEmissionRightsExplanatory_lbl"/>     
    <loc xlink:type="locator" xlink:label="ifrs-full_DescriptionOfAccountingPolicyForPropertyPlantAndEquipmentExplanatory" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DescriptionOfAccountingPolicyForPropertyPlantAndEquipmentExplanatory"/>   
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_DescriptionOfAccountingPolicyForPropertyPlantAndEquipmentExplanatory_lbl" xml:lang="en-US">Property, plant and equipment (&#8220;PP&amp;E&#8221;)</label>    
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_DescriptionOfAccountingPolicyForPropertyPlantAndEquipmentExplanatory" xlink:to="ifrs-full_DescriptionOfAccountingPolicyForPropertyPlantAndEquipmentExplanatory_lbl"/>  
    <loc xlink:type="locator" xlink:label="ifrs-full_DescriptionOfAccountingPolicyForImpairmentOfNonfinancialAssetsExplanatory" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DescriptionOfAccountingPolicyForImpairmentOfNonfinancialAssetsExplanatory"/>   
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_DescriptionOfAccountingPolicyForImpairmentOfNonfinancialAssetsExplanatory_lbl" xml:lang="en-US">Impairment of non-financial assets</label>    
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_DescriptionOfAccountingPolicyForImpairmentOfNonfinancialAssetsExplanatory" xlink:to="ifrs-full_DescriptionOfAccountingPolicyForImpairmentOfNonfinancialAssetsExplanatory_lbl"/>  
    <loc xlink:type="locator" xlink:label="ifrs-full_DescriptionOfAccountingPolicyForBusinessCombinationsExplanatory" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DescriptionOfAccountingPolicyForBusinessCombinationsExplanatory"/>   
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_DescriptionOfAccountingPolicyForBusinessCombinationsExplanatory_lbl" xml:lang="en-US">Business combinations</label> 
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_DescriptionOfAccountingPolicyForBusinessCombinationsExplanatory" xlink:to="ifrs-full_DescriptionOfAccountingPolicyForBusinessCombinationsExplanatory_lbl"/>  
    <loc xlink:type="locator" xlink:label="gfr_DescriptionOfAccountingPolicyForProvisionAndContingentLiabilitiesTextBlock" xlink:href="gfr-20251231.xsd#gfr_DescriptionOfAccountingPolicyForProvisionAndContingentLiabilitiesTextBlock"/>    
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gfr_DescriptionOfAccountingPolicyForProvisionAndContingentLiabilitiesTextBlock_lbl" xml:lang="en-US">Provisions and contingent liabilities</label>  
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_DescriptionOfAccountingPolicyForProvisionAndContingentLiabilitiesTextBlock" xlink:to="gfr_DescriptionOfAccountingPolicyForProvisionAndContingentLiabilitiesTextBlock_lbl"/>  
    <loc xlink:type="locator" xlink:label="ifrs-full_DescriptionOfAccountingPolicyForLeasesExplanatory" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DescriptionOfAccountingPolicyForLeasesExplanatory"/>     
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_DescriptionOfAccountingPolicyForLeasesExplanatory_lbl" xml:lang="en-US">Leases</label>  
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_DescriptionOfAccountingPolicyForLeasesExplanatory" xlink:to="ifrs-full_DescriptionOfAccountingPolicyForLeasesExplanatory_lbl"/>    
    <loc xlink:type="locator" xlink:label="ifrs-full_DescriptionOfAccountingPolicyForIncomeTaxExplanatory" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DescriptionOfAccountingPolicyForIncomeTaxExplanatory"/> 
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_DescriptionOfAccountingPolicyForIncomeTaxExplanatory_lbl" xml:lang="en-US">Income taxes</label> 
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_DescriptionOfAccountingPolicyForIncomeTaxExplanatory" xlink:to="ifrs-full_DescriptionOfAccountingPolicyForIncomeTaxExplanatory_lbl"/>     
    <loc xlink:type="locator" xlink:label="ifrs-full_DescriptionOfAccountingPolicyForSharebasedPaymentTransactionsExplanatory" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DescriptionOfAccountingPolicyForSharebasedPaymentTransactionsExplanatory"/> 
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_DescriptionOfAccountingPolicyForSharebasedPaymentTransactionsExplanatory_lbl" xml:lang="en-US">Stock-based compensation</label>   
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_DescriptionOfAccountingPolicyForSharebasedPaymentTransactionsExplanatory" xlink:to="ifrs-full_DescriptionOfAccountingPolicyForSharebasedPaymentTransactionsExplanatory_lbl"/>     
    <loc xlink:type="locator" xlink:label="ifrs-full_DescriptionOfAccountingPolicyForEarningsPerShareExplanatory" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DescriptionOfAccountingPolicyForEarningsPerShareExplanatory"/>     
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_DescriptionOfAccountingPolicyForEarningsPerShareExplanatory_lbl" xml:lang="en-US">Per share information</label>  
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_DescriptionOfAccountingPolicyForEarningsPerShareExplanatory" xlink:to="ifrs-full_DescriptionOfAccountingPolicyForEarningsPerShareExplanatory_lbl"/>    
    <loc xlink:type="locator" xlink:label="gfr_DescriptionOfAccountingPolicyForStandardsIssuedButNotEffectiveTextBlock" xlink:href="gfr-20251231.xsd#gfr_DescriptionOfAccountingPolicyForStandardsIssuedButNotEffectiveTextBlock"/>   
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gfr_DescriptionOfAccountingPolicyForStandardsIssuedButNotEffectiveTextBlock_lbl" xml:lang="en-US">Standards issued but not effective</label> 
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_DescriptionOfAccountingPolicyForStandardsIssuedButNotEffectiveTextBlock" xlink:to="gfr_DescriptionOfAccountingPolicyForStandardsIssuedButNotEffectiveTextBlock_lbl"/> 
    <loc xlink:type="locator" xlink:label="gfr_WaterousEnergyFundMember" xlink:href="gfr-20251231.xsd#gfr_WaterousEnergyFundMember"/>    
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gfr_WaterousEnergyFundMember_lbl" xml:lang="en-US">Waterous Energy Fund [Member]</label>    
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_WaterousEnergyFundMember" xlink:to="gfr_WaterousEnergyFundMember_lbl"/>  
    <loc xlink:type="locator" xlink:label="gfr_HangingstonMember" xlink:href="gfr-20251231.xsd#gfr_HangingstonMember"/>     
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gfr_HangingstonMember_lbl" xml:lang="en-US">Hangingston [Member]</label>   
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_HangingstonMember" xlink:to="gfr_HangingstonMember_lbl"/>   
    <loc xlink:type="locator" xlink:label="gfr_AthabascaRegionNorthernAlbertaMember" xlink:href="gfr-20251231.xsd#gfr_AthabascaRegionNorthernAlbertaMember"/>   
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gfr_AthabascaRegionNorthernAlbertaMember_lbl" xml:lang="en-US">Athabasca Region Northern Alberta [Member]</label>    
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_AthabascaRegionNorthernAlbertaMember" xlink:to="gfr_AthabascaRegionNorthernAlbertaMember_lbl"/> 
    <loc xlink:type="locator" xlink:label="gfr_TwoThousandTwentyEightNoteMember" xlink:href="gfr-20251231.xsd#gfr_TwoThousandTwentyEightNoteMember"/>     
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gfr_TwoThousandTwentyEightNoteMember_lbl" xml:lang="en-US">2028 Notes [Member]</label>  
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_TwoThousandTwentyEightNoteMember" xlink:to="gfr_TwoThousandTwentyEightNoteMember_lbl"/>   
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="gfr_TwoThousandTwentyEightNoteMember_lbl0" xml:lang="en-US">Two Thousand Twenty Eight Note [Member]</label>     
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_TwoThousandTwentyEightNoteMember" xlink:to="gfr_TwoThousandTwentyEightNoteMember_lbl0"/>    
    <loc xlink:type="locator" xlink:label="gfr_LetterOfCreditFacilityMember" xlink:href="gfr-20251231.xsd#gfr_LetterOfCreditFacilityMember"/>  
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gfr_LetterOfCreditFacilityMember_lbl" xml:lang="en-US">Letter of Credit Facility [Member]</label>   
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_LetterOfCreditFacilityMember" xlink:to="gfr_LetterOfCreditFacilityMember_lbl"/>     
    <loc xlink:type="locator" xlink:label="srt_ScenarioForecastMember" xlink:href="https://xbrl.fasb.org/srt/2025/elts/srt-2025.xsd#srt_ScenarioForecastMember"/>  
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="srt_ScenarioForecastMember_lbl" xml:lang="en-US">Forecast [Member]</label>     
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="srt_ScenarioForecastMember" xlink:to="srt_ScenarioForecastMember_lbl"/>   
    <loc xlink:type="locator" xlink:label="ifrs-full_ProvisionForDecommissioningRestorationAndRehabilitationCostsMember" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_ProvisionForDecommissioningRestorationAndRehabilitationCostsMember"/>    
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_ProvisionForDecommissioningRestorationAndRehabilitationCostsMember_lbl" xml:lang="en-US">Decommissioning Liabilities [Member]</label>    
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_ProvisionForDecommissioningRestorationAndRehabilitationCostsMember" xlink:to="ifrs-full_ProvisionForDecommissioningRestorationAndRehabilitationCostsMember_lbl"/>   
    <loc xlink:type="locator" xlink:label="gfr_RightsOfferingMember" xlink:href="gfr-20251231.xsd#gfr_RightsOfferingMember"/> 
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gfr_RightsOfferingMember_lbl" xml:lang="en-US">Rights Offering [Member]</label>     
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_RightsOfferingMember" xlink:to="gfr_RightsOfferingMember_lbl"/>    
    <loc xlink:type="locator" xlink:label="ifrs-full_RestrictedShareUnitsMember" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_RestrictedShareUnitsMember"/>    
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_RestrictedShareUnitsMember_lbl" xml:lang="en-US">Restricted Share Units [Member]</label>    
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_RestrictedShareUnitsMember" xlink:to="ifrs-full_RestrictedShareUnitsMember_lbl"/>   
    <loc xlink:type="locator" xlink:label="gfr_M3BrigadeSponsorIIILPMember" xlink:href="gfr-20251231.xsd#gfr_M3BrigadeSponsorIIILPMember"/>     
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gfr_M3BrigadeSponsorIIILPMember_lbl" xml:lang="en-US">M3-Brigade Sponsor III, LP [Member]</label>   
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_M3BrigadeSponsorIIILPMember" xlink:to="gfr_M3BrigadeSponsorIIILPMember_lbl"/>   
    <loc xlink:type="locator" xlink:label="ifrs-full_ProductsAndServicesDomain" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_ProductsAndServicesDomain"/>  
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_ProductsAndServicesDomain_lbl" xml:lang="en-US">Products and services [domain]</label>  
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_ProductsAndServicesDomain" xlink:to="ifrs-full_ProductsAndServicesDomain_lbl"/> 
    <loc xlink:type="locator" xlink:label="us-gaap_StatementTable" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_StatementTable"/>  
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_StatementTable_lbl" xml:lang="en-US">Statement [Table]</label> 
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_StatementTable" xlink:to="us-gaap_StatementTable_lbl"/>     
    <loc xlink:type="locator" xlink:label="us-gaap_StatementLineItems" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_StatementLineItems"/>     
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_StatementLineItems_lbl" xml:lang="en-US">Statement [Line Items]</label>     
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_StatementLineItems" xlink:to="us-gaap_StatementLineItems_lbl"/>   
    <loc xlink:type="locator" xlink:label="ifrs-full_ComponentsOfEquityDomain" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_ComponentsOfEquityDomain"/>     
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_ComponentsOfEquityDomain_lbl" xml:lang="en-US">Components of equity [domain]</label>     
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_ComponentsOfEquityDomain" xlink:to="ifrs-full_ComponentsOfEquityDomain_lbl"/>    
    <loc xlink:type="locator" xlink:label="ifrs-full_StatementOfChangesInEquityTable" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_StatementOfChangesInEquityTable"/>    
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_StatementOfChangesInEquityTable_lbl" xml:lang="en-US">Statement of changes in equity [table]</label> 
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_StatementOfChangesInEquityTable" xlink:to="ifrs-full_StatementOfChangesInEquityTable_lbl"/>   
    <loc xlink:type="locator" xlink:label="ifrs-full_StatementOfChangesInEquityLineItems" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_StatementOfChangesInEquityLineItems"/>  
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_StatementOfChangesInEquityLineItems_lbl" xml:lang="en-US">Statement of changes in equity [line items]</label>     
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_StatementOfChangesInEquityLineItems" xlink:to="ifrs-full_StatementOfChangesInEquityLineItems_lbl"/> 
    <loc xlink:type="locator" xlink:label="ifrs-full_ClassesOfAssetsDomain" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_ClassesOfAssetsDomain"/>    
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_ClassesOfAssetsDomain_lbl" xml:lang="en-US">Classes of assets [domain]</label>    
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_ClassesOfAssetsDomain" xlink:to="ifrs-full_ClassesOfAssetsDomain_lbl"/>   
    <loc xlink:type="locator" xlink:label="srt_CondensedBalanceSheetStatementTable" xlink:href="https://xbrl.fasb.org/srt/2025/elts/srt-2025.xsd#srt_CondensedBalanceSheetStatementTable"/>   
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="srt_CondensedBalanceSheetStatementTable_lbl" xml:lang="en-US">Condensed Balance Sheet Statement [Table]</label>  
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="srt_CondensedBalanceSheetStatementTable" xlink:to="srt_CondensedBalanceSheetStatementTable_lbl"/>    
    <loc xlink:type="locator" xlink:label="ifrs-full_DisclosureOfFinancialInstrumentsLineItems" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DisclosureOfFinancialInstrumentsLineItems"/>    
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_DisclosureOfFinancialInstrumentsLineItems_lbl" xml:lang="en-US">Schedule of Consolidated Balance Sheets and the Corresponding Hierarchy Rating for their Derived Fair Value Estimates [Line Items]</label>   
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_DisclosureOfFinancialInstrumentsLineItems" xlink:to="ifrs-full_DisclosureOfFinancialInstrumentsLineItems_lbl"/>   
    <loc xlink:type="locator" xlink:label="ifrs-full_ClassesOfPropertyPlantAndEquipmentDomain" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_ClassesOfPropertyPlantAndEquipmentDomain"/>  
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_ClassesOfPropertyPlantAndEquipmentDomain_lbl" xml:lang="en-US">Classes of property, plant and equipment [domain]</label> 
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_ClassesOfPropertyPlantAndEquipmentDomain" xlink:to="ifrs-full_ClassesOfPropertyPlantAndEquipmentDomain_lbl"/> 
    <loc xlink:type="locator" xlink:label="ifrs-full_CarryingAmountMember" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_CarryingAmountMember"/>  
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_CarryingAmountMember_lbl" xml:lang="en-US">Carrying amount [member]</label> 
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_CarryingAmountMember" xlink:to="ifrs-full_CarryingAmountMember_lbl"/> 
    <loc xlink:type="locator" xlink:label="gfr_PropertyPlantandEquipmentPPEScheduleofPropertyPlantandEquipmentPPEDetailsTable" xlink:href="gfr-20251231.xsd#gfr_PropertyPlantandEquipmentPPEScheduleofPropertyPlantandEquipmentPPEDetailsTable"/>  
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gfr_PropertyPlantandEquipmentPPEScheduleofPropertyPlantandEquipmentPPEDetailsTable_lbl" xml:lang="en-US">Property, Plant and Equipment (&#8220;PP&amp;E&#8221;) - Schedule of Property, Plant and Equipment (&#8220;PP&amp;E&#8221;) (Details) [Table]</label>     
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_PropertyPlantandEquipmentPPEScheduleofPropertyPlantandEquipmentPPEDetailsTable" xlink:to="gfr_PropertyPlantandEquipmentPPEScheduleofPropertyPlantandEquipmentPPEDetailsTable_lbl"/>     
    <loc xlink:type="locator" xlink:label="ifrs-full_DisclosureOfPropertyPlantAndEquipmentLineItems" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DisclosureOfPropertyPlantAndEquipmentLineItems"/>    
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_DisclosureOfPropertyPlantAndEquipmentLineItems_lbl" xml:lang="en-US">Schedule of Property, Plant and Equipment (&#8220;PP&amp;E&#8221;) [Line Items]</label>  
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_DisclosureOfPropertyPlantAndEquipmentLineItems" xlink:to="ifrs-full_DisclosureOfPropertyPlantAndEquipmentLineItems_lbl"/>   
    <loc xlink:type="locator" xlink:label="ifrs-full_CategoriesOfRelatedPartiesDomain" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_CategoriesOfRelatedPartiesDomain"/> 
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_CategoriesOfRelatedPartiesDomain_lbl" xml:lang="en-US">Categories of related parties [domain]</label>  
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_CategoriesOfRelatedPartiesDomain" xlink:to="ifrs-full_CategoriesOfRelatedPartiesDomain_lbl"/>     
    <loc xlink:type="locator" xlink:label="ifrs-full_RangeDomain" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_RangeDomain"/>    
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_RangeDomain_lbl" xml:lang="en-US">Range [domain]</label>  
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_RangeDomain" xlink:to="ifrs-full_RangeDomain_lbl"/>   
    <loc xlink:type="locator" xlink:label="gfr_IncomeTaxesScheduleofTaxableIncomeDetailsTable" xlink:href="gfr-20251231.xsd#gfr_IncomeTaxesScheduleofTaxableIncomeDetailsTable"/>   
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gfr_IncomeTaxesScheduleofTaxableIncomeDetailsTable_lbl" xml:lang="en-US">Income Taxes - Schedule of Taxable Income (Details) [Table]</label> 
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_IncomeTaxesScheduleofTaxableIncomeDetailsTable" xlink:to="gfr_IncomeTaxesScheduleofTaxableIncomeDetailsTable_lbl"/> 
    <loc xlink:type="locator" xlink:label="ifrs-full_DisclosureOfTemporaryDifferenceUnusedTaxLossesAndUnusedTaxCreditsLineItems" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DisclosureOfTemporaryDifferenceUnusedTaxLossesAndUnusedTaxCreditsLineItems"/>     
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_DisclosureOfTemporaryDifferenceUnusedTaxLossesAndUnusedTaxCreditsLineItems_lbl" xml:lang="en-US">Schedule of Taxable Income [Line Items]</label>     
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_DisclosureOfTemporaryDifferenceUnusedTaxLossesAndUnusedTaxCreditsLineItems" xlink:to="ifrs-full_DisclosureOfTemporaryDifferenceUnusedTaxLossesAndUnusedTaxCreditsLineItems_lbl"/>    
    <loc xlink:type="locator" xlink:label="ifrs-full_MaturityDomain" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_MaturityDomain"/>     
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_MaturityDomain_lbl" xml:lang="en-US">Maturity [domain]</label>   
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_MaturityDomain" xlink:to="ifrs-full_MaturityDomain_lbl"/>    
    <loc xlink:type="locator" xlink:label="gfr_LeaseLiabilitiesandOtherScheduleofMinimumLeasePaymentsDetailsTable" xlink:href="gfr-20251231.xsd#gfr_LeaseLiabilitiesandOtherScheduleofMinimumLeasePaymentsDetailsTable"/>   
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gfr_LeaseLiabilitiesandOtherScheduleofMinimumLeasePaymentsDetailsTable_lbl" xml:lang="en-US">Lease Liabilities and Other - Schedule of Minimum Lease Payments (Details) [Table]</label>    
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_LeaseLiabilitiesandOtherScheduleofMinimumLeasePaymentsDetailsTable" xlink:to="gfr_LeaseLiabilitiesandOtherScheduleofMinimumLeasePaymentsDetailsTable_lbl"/> 
    <loc xlink:type="locator" xlink:label="ifrs-full_DisclosureOfMaturityAnalysisOfOperatingLeasePaymentsLineItems" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DisclosureOfMaturityAnalysisOfOperatingLeasePaymentsLineItems"/>    
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_DisclosureOfMaturityAnalysisOfOperatingLeasePaymentsLineItems_lbl" xml:lang="en-US">Schedule of Minimum Lease Payments [Line Items]</label>     
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_DisclosureOfMaturityAnalysisOfOperatingLeasePaymentsLineItems" xlink:to="ifrs-full_DisclosureOfMaturityAnalysisOfOperatingLeasePaymentsLineItems_lbl"/>   
    <loc xlink:type="locator" xlink:label="gfr_WarrantLiabilityScheduleofWarrantLiabilityDetailsTable" xlink:href="gfr-20251231.xsd#gfr_WarrantLiabilityScheduleofWarrantLiabilityDetailsTable"/>    
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gfr_WarrantLiabilityScheduleofWarrantLiabilityDetailsTable_lbl" xml:lang="en-US">Warrant Liability - Schedule of Warrant Liability (Details) [Table]</label>  
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_WarrantLiabilityScheduleofWarrantLiabilityDetailsTable" xlink:to="gfr_WarrantLiabilityScheduleofWarrantLiabilityDetailsTable_lbl"/>  
    <loc xlink:type="locator" xlink:label="gfr_WarrantLiabilityLineItems" xlink:href="gfr-20251231.xsd#gfr_WarrantLiabilityLineItems"/> 
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gfr_WarrantLiabilityLineItems_lbl" xml:lang="en-US">Schedule of Warrant Liability [Line Items]</label>   
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_WarrantLiabilityLineItems" xlink:to="gfr_WarrantLiabilityLineItems_lbl"/>    
    <loc xlink:type="locator" xlink:label="ifrs-full_ValuationTechniquesUsedInFairValueMeasurementDomain" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_ValuationTechniquesUsedInFairValueMeasurementDomain"/>    
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_ValuationTechniquesUsedInFairValueMeasurementDomain_lbl" xml:lang="en-US">Valuation techniques used in fair value measurement [domain]</label>   
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_ValuationTechniquesUsedInFairValueMeasurementDomain" xlink:to="ifrs-full_ValuationTechniquesUsedInFairValueMeasurementDomain_lbl"/>   
    <loc xlink:type="locator" xlink:label="gfr_WarrantLiabilityScheduleofFairValueofEachWarrantwasEstimatedUsingtheBlackScholesMertonModelDetailsTable" xlink:href="gfr-20251231.xsd#gfr_WarrantLiabilityScheduleofFairValueofEachWarrantwasEstimatedUsingtheBlackScholesMertonModelDetailsTable"/>  
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gfr_WarrantLiabilityScheduleofFairValueofEachWarrantwasEstimatedUsingtheBlackScholesMertonModelDetailsTable_lbl" xml:lang="en-US">Warrant Liability - Schedule of Fair Value of Each Warrant was Estimated Using the Black Scholes Merton Model (Details) [Table]</label> 
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_WarrantLiabilityScheduleofFairValueofEachWarrantwasEstimatedUsingtheBlackScholesMertonModelDetailsTable" xlink:to="gfr_WarrantLiabilityScheduleofFairValueofEachWarrantwasEstimatedUsingtheBlackScholesMertonModelDetailsTable_lbl"/>     
    <loc xlink:type="locator" xlink:label="ifrs-full_DisclosureOfFairValueMeasurementOfEquityLineItems" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DisclosureOfFairValueMeasurementOfEquityLineItems"/>     
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_DisclosureOfFairValueMeasurementOfEquityLineItems_lbl" xml:lang="en-US">Schedule of Fair Value of Each Warrant was Estimated Using the Black Scholes Merton Model [Line Items]</label>   
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_DisclosureOfFairValueMeasurementOfEquityLineItems" xlink:to="ifrs-full_DisclosureOfFairValueMeasurementOfEquityLineItems_lbl"/>    
    <loc xlink:type="locator" xlink:label="gfr_RevenuefromContractswithCustomersScheduleofRevenuefromContractswithCustomersDetailsTable" xlink:href="gfr-20251231.xsd#gfr_RevenuefromContractswithCustomersScheduleofRevenuefromContractswithCustomersDetailsTable"/>  
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gfr_RevenuefromContractswithCustomersScheduleofRevenuefromContractswithCustomersDetailsTable_lbl" xml:lang="en-US">Revenue from Contracts with Customers - Schedule of Revenue from Contracts with Customers (Details) [Table]</label> 
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_RevenuefromContractswithCustomersScheduleofRevenuefromContractswithCustomersDetailsTable" xlink:to="gfr_RevenuefromContractswithCustomersScheduleofRevenuefromContractswithCustomersDetailsTable_lbl"/>     
    <loc xlink:type="locator" xlink:label="ifrs-full_DisclosureOfDisaggregationOfRevenueFromContractsWithCustomersLineItems" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DisclosureOfDisaggregationOfRevenueFromContractsWithCustomersLineItems"/>  
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_DisclosureOfDisaggregationOfRevenueFromContractsWithCustomersLineItems_lbl" xml:lang="en-US">Schedule of Revenue from Contracts with Customers [Line Items]</label>    
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_DisclosureOfDisaggregationOfRevenueFromContractsWithCustomersLineItems" xlink:to="ifrs-full_DisclosureOfDisaggregationOfRevenueFromContractsWithCustomersLineItems_lbl"/> 
    <loc xlink:type="locator" xlink:label="ifrs-full_TypesOfSharebasedPaymentArrangementsDomain" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_TypesOfSharebasedPaymentArrangementsDomain"/> 
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_TypesOfSharebasedPaymentArrangementsDomain_lbl" xml:lang="en-US">Types of share-based payment arrangements [domain]</label>    
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_TypesOfSharebasedPaymentArrangementsDomain" xlink:to="ifrs-full_TypesOfSharebasedPaymentArrangementsDomain_lbl"/>     
    <loc xlink:type="locator" xlink:label="gfr_StockBasedCompensationScheduleofShareUnitsIssuedandOutstandingDetailsTable" xlink:href="gfr-20251231.xsd#gfr_StockBasedCompensationScheduleofShareUnitsIssuedandOutstandingDetailsTable"/>    
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gfr_StockBasedCompensationScheduleofShareUnitsIssuedandOutstandingDetailsTable_lbl" xml:lang="en-US">Stock-Based Compensation - Schedule of Share Units, Issued and Outstanding (Details) [Table]</label>  
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_StockBasedCompensationScheduleofShareUnitsIssuedandOutstandingDetailsTable" xlink:to="gfr_StockBasedCompensationScheduleofShareUnitsIssuedandOutstandingDetailsTable_lbl"/>  
    <loc xlink:type="locator" xlink:label="ifrs-full_DisclosureOfTermsAndConditionsOfSharebasedPaymentArrangementLineItems" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DisclosureOfTermsAndConditionsOfSharebasedPaymentArrangementLineItems"/>     
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_DisclosureOfTermsAndConditionsOfSharebasedPaymentArrangementLineItems_lbl" xml:lang="en-US">Schedule of Share Units, Issued and Outstanding [Line Items]</label> 
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_DisclosureOfTermsAndConditionsOfSharebasedPaymentArrangementLineItems" xlink:to="ifrs-full_DisclosureOfTermsAndConditionsOfSharebasedPaymentArrangementLineItems_lbl"/>    
    <loc xlink:type="locator" xlink:label="gfr_StockBasedCompensationScheduleofStockBasedCompensationExpenseDetailsTable" xlink:href="gfr-20251231.xsd#gfr_StockBasedCompensationScheduleofStockBasedCompensationExpenseDetailsTable"/>  
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gfr_StockBasedCompensationScheduleofStockBasedCompensationExpenseDetailsTable_lbl" xml:lang="en-US">Stock-Based Compensation - Schedule of Stock-Based Compensation Expense (Details) [Table]</label>   
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_StockBasedCompensationScheduleofStockBasedCompensationExpenseDetailsTable" xlink:to="gfr_StockBasedCompensationScheduleofStockBasedCompensationExpenseDetailsTable_lbl"/>     
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_DisclosureOfTermsAndConditionsOfSharebasedPaymentArrangementLineItems_lbl0" xml:lang="en-US">Schedule of Stock-Based Compensation Expense [Line Items]</label>    
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_DisclosureOfTermsAndConditionsOfSharebasedPaymentArrangementLineItems" xlink:to="ifrs-full_DisclosureOfTermsAndConditionsOfSharebasedPaymentArrangementLineItems_lbl0"/>     
    <loc xlink:type="locator" xlink:label="ifrs-full_TypesOfRisksDomain" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_TypesOfRisksDomain"/>   
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_TypesOfRisksDomain_lbl" xml:lang="en-US">Types of risks [domain]</label>   
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_TypesOfRisksDomain" xlink:to="ifrs-full_TypesOfRisksDomain_lbl"/>  
    <loc xlink:type="locator" xlink:label="gfr_FinancialInstrumentsandRiskManagementScheduleofFairValueofFinancialInstrumentsDetailsTable" xlink:href="gfr-20251231.xsd#gfr_FinancialInstrumentsandRiskManagementScheduleofFairValueofFinancialInstrumentsDetailsTable"/> 
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gfr_FinancialInstrumentsandRiskManagementScheduleofFairValueofFinancialInstrumentsDetailsTable_lbl" xml:lang="en-US">Financial Instruments and Risk Management - Schedule of Fair Value of Financial Instruments (Details) [Table]</label>     
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_FinancialInstrumentsandRiskManagementScheduleofFairValueofFinancialInstrumentsDetailsTable" xlink:to="gfr_FinancialInstrumentsandRiskManagementScheduleofFairValueofFinancialInstrumentsDetailsTable_lbl"/>    
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_DisclosureOfFinancialInstrumentsLineItems_lbl0" xml:lang="en-US">Schedule of Fair Value of Financial Instruments [Line Items]</label>    
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_DisclosureOfFinancialInstrumentsLineItems" xlink:to="ifrs-full_DisclosureOfFinancialInstrumentsLineItems_lbl0"/>    
    <loc xlink:type="locator" xlink:label="ifrs-full_ClassesOfFinancialInstrumentsDomain" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_ClassesOfFinancialInstrumentsDomain"/>  
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_ClassesOfFinancialInstrumentsDomain_lbl" xml:lang="en-US">Classes of financial instruments [domain]</label>   
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_ClassesOfFinancialInstrumentsDomain" xlink:to="ifrs-full_ClassesOfFinancialInstrumentsDomain_lbl"/> 
    <loc xlink:type="locator" xlink:label="ifrs-full_MeasurementDomain" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_MeasurementDomain"/> 
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_MeasurementDomain_lbl" xml:lang="en-US">Measurement [domain]</label>    
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_MeasurementDomain" xlink:to="ifrs-full_MeasurementDomain_lbl"/>     
    <loc xlink:type="locator" xlink:label="gfr_FinancialInstrumentsandRiskManagementScheduleofFinancialCommodityRiskManagementContractsDetailsTable" xlink:href="gfr-20251231.xsd#gfr_FinancialInstrumentsandRiskManagementScheduleofFinancialCommodityRiskManagementContractsDetailsTable"/> 
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gfr_FinancialInstrumentsandRiskManagementScheduleofFinancialCommodityRiskManagementContractsDetailsTable_lbl" xml:lang="en-US">Financial Instruments and Risk Management - Schedule of Financial Commodity Risk Management Contracts (Details) [Table]</label>     
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_FinancialInstrumentsandRiskManagementScheduleofFinancialCommodityRiskManagementContractsDetailsTable" xlink:to="gfr_FinancialInstrumentsandRiskManagementScheduleofFinancialCommodityRiskManagementContractsDetailsTable_lbl"/>    
    <loc xlink:type="locator" xlink:label="gfr_FinancialInstrumentsandRiskManagementScheduleofFinancialCommodityRiskManagementContractsDetailsLineItems" xlink:href="gfr-20251231.xsd#gfr_FinancialInstrumentsandRiskManagementScheduleofFinancialCommodityRiskManagementContractsDetailsLineItems"/>    
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gfr_FinancialInstrumentsandRiskManagementScheduleofFinancialCommodityRiskManagementContractsDetailsLineItems_lbl" xml:lang="en-US">Schedule of Financial Commodity Risk Management Contracts [Line Items]</label>     
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_FinancialInstrumentsandRiskManagementScheduleofFinancialCommodityRiskManagementContractsDetailsLineItems" xlink:to="gfr_FinancialInstrumentsandRiskManagementScheduleofFinancialCommodityRiskManagementContractsDetailsLineItems_lbl"/>  
    <loc xlink:type="locator" xlink:label="ifrs-full_ConcentrationsOfRiskDomain" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_ConcentrationsOfRiskDomain"/>    
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_ConcentrationsOfRiskDomain_lbl" xml:lang="en-US">Concentrations of risk [domain]</label>    
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_ConcentrationsOfRiskDomain" xlink:to="ifrs-full_ConcentrationsOfRiskDomain_lbl"/>   
    <loc xlink:type="locator" xlink:label="gfr_FinancialInstrumentsandRiskManagementScheduleofNetIncomeBeforeTaxBasedontheFinancialRiskManagementContractsDetailsTable" xlink:href="gfr-20251231.xsd#gfr_FinancialInstrumentsandRiskManagementScheduleofNetIncomeBeforeTaxBasedontheFinancialRiskManagementContractsDetailsTable"/>    
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gfr_FinancialInstrumentsandRiskManagementScheduleofNetIncomeBeforeTaxBasedontheFinancialRiskManagementContractsDetailsTable_lbl" xml:lang="en-US">Financial Instruments and Risk Management - Schedule of Net Income, Before Tax, Based on the Financial Risk Management Contracts (Details) [Table]</label> 
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_FinancialInstrumentsandRiskManagementScheduleofNetIncomeBeforeTaxBasedontheFinancialRiskManagementContractsDetailsTable" xlink:to="gfr_FinancialInstrumentsandRiskManagementScheduleofNetIncomeBeforeTaxBasedontheFinancialRiskManagementContractsDetailsTable_lbl"/>  
    <loc xlink:type="locator" xlink:label="gfr_NetIncomeBeforeTaxBasedOnTheFinancialRiskManagementContractsLineItems" xlink:href="gfr-20251231.xsd#gfr_NetIncomeBeforeTaxBasedOnTheFinancialRiskManagementContractsLineItems"/>    
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gfr_NetIncomeBeforeTaxBasedOnTheFinancialRiskManagementContractsLineItems_lbl" xml:lang="en-US">Schedule of Net Income, Before Tax, Based on the Financial Risk Management Contracts [Line Items]</label>  
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_NetIncomeBeforeTaxBasedOnTheFinancialRiskManagementContractsLineItems" xlink:to="gfr_NetIncomeBeforeTaxBasedOnTheFinancialRiskManagementContractsLineItems_lbl"/>  
    <loc xlink:type="locator" xlink:label="gfr_FinancialInstrumentsandRiskManagementScheduleofContractualMaturitiesofitsFinancialLiabilitiesDetailsTable" xlink:href="gfr-20251231.xsd#gfr_FinancialInstrumentsandRiskManagementScheduleofContractualMaturitiesofitsFinancialLiabilitiesDetailsTable"/> 
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gfr_FinancialInstrumentsandRiskManagementScheduleofContractualMaturitiesofitsFinancialLiabilitiesDetailsTable_lbl" xml:lang="en-US">Financial Instruments and Risk Management - Schedule of Contractual Maturities of its Financial Liabilities (Details) [Table]</label> 
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_FinancialInstrumentsandRiskManagementScheduleofContractualMaturitiesofitsFinancialLiabilitiesDetailsTable" xlink:to="gfr_FinancialInstrumentsandRiskManagementScheduleofContractualMaturitiesofitsFinancialLiabilitiesDetailsTable_lbl"/>    
    <loc xlink:type="locator" xlink:label="ifrs-full_DisclosureOfFinancialLiabilitiesLineItems" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DisclosureOfFinancialLiabilitiesLineItems"/>    
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_DisclosureOfFinancialLiabilitiesLineItems_lbl" xml:lang="en-US">Schedule of Contractual Maturities of Financial Liabilities [Line Items]</label>     
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_DisclosureOfFinancialLiabilitiesLineItems" xlink:to="ifrs-full_DisclosureOfFinancialLiabilitiesLineItems_lbl"/>   
    <loc xlink:type="locator" xlink:label="gfr_LeaseContractTermDomainDomain" xlink:href="gfr-20251231.xsd#gfr_LeaseContractTermDomainDomain"/>    
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gfr_LeaseContractTermDomainDomain_lbl" xml:lang="en-US">LeaseContractTermDomain [Domain]</label>  
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_LeaseContractTermDomainDomain" xlink:to="gfr_LeaseContractTermDomainDomain_lbl"/>  
    <loc xlink:type="locator" xlink:label="gfr_CommitmentsandContingenciesScheduleofCommitmentsDetailsTable" xlink:href="gfr-20251231.xsd#gfr_CommitmentsandContingenciesScheduleofCommitmentsDetailsTable"/> 
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gfr_CommitmentsandContingenciesScheduleofCommitmentsDetailsTable_lbl" xml:lang="en-US">Commitments and Contingencies - Schedule of Commitments (Details) [Table]</label>    
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_CommitmentsandContingenciesScheduleofCommitmentsDetailsTable" xlink:to="gfr_CommitmentsandContingenciesScheduleofCommitmentsDetailsTable_lbl"/>    
    <loc xlink:type="locator" xlink:label="gfr_CommitmentsAndContingenciesLineItems" xlink:href="gfr-20251231.xsd#gfr_CommitmentsAndContingenciesLineItems"/>   
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gfr_CommitmentsAndContingenciesLineItems_lbl" xml:lang="en-US">Commitments and Contingencies [Line Items]</label>    
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_CommitmentsAndContingenciesLineItems" xlink:to="gfr_CommitmentsAndContingenciesLineItems_lbl"/> 
    <loc xlink:type="locator" xlink:label="ifrs-full_ClassesOfShareCapitalDomain" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_ClassesOfShareCapitalDomain"/> 
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_ClassesOfShareCapitalDomain_lbl" xml:lang="en-US">Classes of share capital [domain]</label>  
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_ClassesOfShareCapitalDomain" xlink:to="ifrs-full_ClassesOfShareCapitalDomain_lbl"/>     
    <loc xlink:type="locator" xlink:label="ifrs-full_TypesOfAntidilutiveInstrumentsDomain" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_TypesOfAntidilutiveInstrumentsDomain"/>    
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_TypesOfAntidilutiveInstrumentsDomain_lbl" xml:lang="en-US">Types of antidilutive instruments [domain]</label>     
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_TypesOfAntidilutiveInstrumentsDomain" xlink:to="ifrs-full_TypesOfAntidilutiveInstrumentsDomain_lbl"/>   
    <loc xlink:type="locator" xlink:label="srt_ConsolidatedEntitiesDomain" xlink:href="https://xbrl.fasb.org/srt/2025/elts/srt-2025.xsd#srt_ConsolidatedEntitiesDomain"/>     
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="srt_ConsolidatedEntitiesDomain_lbl" xml:lang="en-US">Consolidated Entities [Domain]</label>  
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="srt_ConsolidatedEntitiesDomain" xlink:to="srt_ConsolidatedEntitiesDomain_lbl"/> 
    <loc xlink:type="locator" xlink:label="gfr_CorporateInformationDetailsTable" xlink:href="gfr-20251231.xsd#gfr_CorporateInformationDetailsTable"/>     
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gfr_CorporateInformationDetailsTable_lbl" xml:lang="en-US">Corporate Information (Details) [Table]</label>  
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_CorporateInformationDetailsTable" xlink:to="gfr_CorporateInformationDetailsTable_lbl"/>   
    <loc xlink:type="locator" xlink:label="ifrs-full_DisclosureOfInformationAboutConsolidatedStructuredEntitiesLineItems" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DisclosureOfInformationAboutConsolidatedStructuredEntitiesLineItems"/> 
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_DisclosureOfInformationAboutConsolidatedStructuredEntitiesLineItems_lbl" xml:lang="en-US">Corporate Information [Line Items]</label>   
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_DisclosureOfInformationAboutConsolidatedStructuredEntitiesLineItems" xlink:to="ifrs-full_DisclosureOfInformationAboutConsolidatedStructuredEntitiesLineItems_lbl"/>     
    <loc xlink:type="locator" xlink:label="gfr_MaterialAccountingPoliciesDetailsTable" xlink:href="gfr-20251231.xsd#gfr_MaterialAccountingPoliciesDetailsTable"/>  
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gfr_MaterialAccountingPoliciesDetailsTable_lbl" xml:lang="en-US">Material Accounting Policies (Details) [Table]</label>     
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_MaterialAccountingPoliciesDetailsTable" xlink:to="gfr_MaterialAccountingPoliciesDetailsTable_lbl"/>     
    <loc xlink:type="locator" xlink:label="ifrs-full_DisclosureOfVoluntaryChangeInAccountingPolicyLineItems" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DisclosureOfVoluntaryChangeInAccountingPolicyLineItems"/>     
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_DisclosureOfVoluntaryChangeInAccountingPolicyLineItems_lbl" xml:lang="en-US">Material Accounting Policies [Line Items]</label>  
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_DisclosureOfVoluntaryChangeInAccountingPolicyLineItems" xlink:to="ifrs-full_DisclosureOfVoluntaryChangeInAccountingPolicyLineItems_lbl"/>    
    <loc xlink:type="locator" xlink:label="ifrs-full_GeographicalAreasDomain" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_GeographicalAreasDomain"/>   
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_GeographicalAreasDomain_lbl" xml:lang="en-US">Geographical areas [domain]</label>  
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_GeographicalAreasDomain" xlink:to="ifrs-full_GeographicalAreasDomain_lbl"/>  
    <loc xlink:type="locator" xlink:label="gfr_PropertyPlantandEquipmentPPEDetailsTable" xlink:href="gfr-20251231.xsd#gfr_PropertyPlantandEquipmentPPEDetailsTable"/> 
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gfr_PropertyPlantandEquipmentPPEDetailsTable_lbl" xml:lang="en-US">Property, Plant and Equipment (&#8220;PP&amp;E&#8221;) (Details) [Table]</label>   
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_PropertyPlantandEquipmentPPEDetailsTable" xlink:to="gfr_PropertyPlantandEquipmentPPEDetailsTable_lbl"/>    
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_DisclosureOfPropertyPlantAndEquipmentLineItems_lbl0" xml:lang="en-US">Property, Plant and Equipment (&#8220;PP&amp;E&#8221;) [Line Items]</label> 
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_DisclosureOfPropertyPlantAndEquipmentLineItems" xlink:to="ifrs-full_DisclosureOfPropertyPlantAndEquipmentLineItems_lbl0"/>    
    <loc xlink:type="locator" xlink:label="ifrs-full_BorrowingsByNameDomain" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_BorrowingsByNameDomain"/> 
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_BorrowingsByNameDomain_lbl" xml:lang="en-US">Borrowings by name [domain]</label> 
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_BorrowingsByNameDomain" xlink:to="ifrs-full_BorrowingsByNameDomain_lbl"/>     
    <loc xlink:type="locator" xlink:label="ifrs-full_NonadjustingEventsAfterReportingPeriodDomain" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_NonadjustingEventsAfterReportingPeriodDomain"/>     
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_NonadjustingEventsAfterReportingPeriodDomain_lbl" xml:lang="en-US">Non-adjusting events after reporting period [domain]</label>   
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_NonadjustingEventsAfterReportingPeriodDomain" xlink:to="ifrs-full_NonadjustingEventsAfterReportingPeriodDomain_lbl"/>    
    <loc xlink:type="locator" xlink:label="gfr_LongTermDebtDetailsTable" xlink:href="gfr-20251231.xsd#gfr_LongTermDebtDetailsTable"/>    
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gfr_LongTermDebtDetailsTable_lbl" xml:lang="en-US">Long-Term Debt (Details) [Table]</label>  
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_LongTermDebtDetailsTable" xlink:to="gfr_LongTermDebtDetailsTable_lbl"/>  
    <loc xlink:type="locator" xlink:label="ifrs-full_DisclosureOfDetailedInformationAboutBorrowingsLineItems" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DisclosureOfDetailedInformationAboutBorrowingsLineItems"/>  
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_DisclosureOfDetailedInformationAboutBorrowingsLineItems_lbl" xml:lang="en-US">Long-Term Debt [Line Items]</label>    
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_DisclosureOfDetailedInformationAboutBorrowingsLineItems" xlink:to="ifrs-full_DisclosureOfDetailedInformationAboutBorrowingsLineItems_lbl"/> 
    <loc xlink:type="locator" xlink:label="ifrs-full_ClassesOfOtherProvisionsDomain" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_ClassesOfOtherProvisionsDomain"/>  
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_ClassesOfOtherProvisionsDomain_lbl" xml:lang="en-US">Classes of other provisions [domain]</label>   
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_ClassesOfOtherProvisionsDomain" xlink:to="ifrs-full_ClassesOfOtherProvisionsDomain_lbl"/> 
    <loc xlink:type="locator" xlink:label="gfr_DecommissioningLiabilitiesDetailsTable" xlink:href="gfr-20251231.xsd#gfr_DecommissioningLiabilitiesDetailsTable"/>  
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gfr_DecommissioningLiabilitiesDetailsTable_lbl" xml:lang="en-US">Decommissioning Liabilities (Details) [Table]</label>    
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_DecommissioningLiabilitiesDetailsTable" xlink:to="gfr_DecommissioningLiabilitiesDetailsTable_lbl"/>     
    <loc xlink:type="locator" xlink:label="gfr_DecommissioningLiabilitiesLineItems" xlink:href="gfr-20251231.xsd#gfr_DecommissioningLiabilitiesLineItems"/> 
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gfr_DecommissioningLiabilitiesLineItems_lbl" xml:lang="en-US">Decommissioning Liabilities [Line Items]</label> 
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_DecommissioningLiabilitiesLineItems" xlink:to="gfr_DecommissioningLiabilitiesLineItems_lbl"/>    
    <loc xlink:type="locator" xlink:label="gfr_ShareCapitalandPerShareAmountsDetailsTable" xlink:href="gfr-20251231.xsd#gfr_ShareCapitalandPerShareAmountsDetailsTable"/>     
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gfr_ShareCapitalandPerShareAmountsDetailsTable_lbl" xml:lang="en-US">Share Capital and Per Share Amounts (Details) [Table]</label> 
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_ShareCapitalandPerShareAmountsDetailsTable" xlink:to="gfr_ShareCapitalandPerShareAmountsDetailsTable_lbl"/>   
    <loc xlink:type="locator" xlink:label="ifrs-full_DisclosureOfClassesOfShareCapitalLineItems" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DisclosureOfClassesOfShareCapitalLineItems"/> 
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_DisclosureOfClassesOfShareCapitalLineItems_lbl" xml:lang="en-US">Share Capital and Per Share Amounts [Line Items]</label>  
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_DisclosureOfClassesOfShareCapitalLineItems" xlink:to="ifrs-full_DisclosureOfClassesOfShareCapitalLineItems_lbl"/>     
    <loc xlink:type="locator" xlink:label="gfr_StockBasedCompensationDetailsTable" xlink:href="gfr-20251231.xsd#gfr_StockBasedCompensationDetailsTable"/>    
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gfr_StockBasedCompensationDetailsTable_lbl" xml:lang="en-US">Stock-Based Compensation (Details) [Table]</label>  
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_StockBasedCompensationDetailsTable" xlink:to="gfr_StockBasedCompensationDetailsTable_lbl"/>  
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ifrs-full_DisclosureOfTermsAndConditionsOfSharebasedPaymentArrangementLineItems_lbl1" xml:lang="en-US">Stock-Based Compensation [Line Items]</label> 
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_DisclosureOfTermsAndConditionsOfSharebasedPaymentArrangementLineItems" xlink:to="ifrs-full_DisclosureOfTermsAndConditionsOfSharebasedPaymentArrangementLineItems_lbl1"/>     
    <loc xlink:type="locator" xlink:label="gfr_RelatedPartyTransactionsDetailsTable" xlink:href="gfr-20251231.xsd#gfr_RelatedPartyTransactionsDetailsTable"/>   
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gfr_RelatedPartyTransactionsDetailsTable_lbl" xml:lang="en-US">Related Party Transactions (Details) [Table]</label> 
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_RelatedPartyTransactionsDetailsTable" xlink:to="gfr_RelatedPartyTransactionsDetailsTable_lbl"/> 
    <loc xlink:type="locator" xlink:label="ifrs-full_DisclosureOfTransactionsBetweenRelatedPartiesLineItems" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DisclosureOfTransactionsBetweenRelatedPartiesLineItems"/>     
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_DisclosureOfTransactionsBetweenRelatedPartiesLineItems_lbl" xml:lang="en-US">Related Party Transactions [Line Items]</label>     
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_DisclosureOfTransactionsBetweenRelatedPartiesLineItems" xlink:to="ifrs-full_DisclosureOfTransactionsBetweenRelatedPartiesLineItems_lbl"/>    
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gfr_AccountsPayableAndAccruedLiabilitiesTextBlock_lbl0" xml:lang="en-US">The entire disclousure of accounts payable and accured liabilities.</label>  
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_AccountsPayableAndAccruedLiabilitiesTextBlock" xlink:to="gfr_AccountsPayableAndAccruedLiabilitiesTextBlock_lbl0"/>     
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gfr_AccretionExpenses_lbl0" xml:lang="en-US">Accretion expense.</label>     
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_AccretionExpenses" xlink:to="gfr_AccretionExpenses_lbl0"/>    
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gfr_AccretionOfDecommissioningObligations_lbl0" xml:lang="en-US">Accretion of decommissioning obligations.</label>   
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_AccretionOfDecommissioningObligations" xlink:to="gfr_AccretionOfDecommissioningObligations_lbl0"/>    
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gfr_AccruedInterestPayable_lbl0" xml:lang="en-US">Accrued interest payable.</label>  
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_AccruedInterestPayable" xlink:to="gfr_AccruedInterestPayable_lbl0"/>    
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gfr_AccruedJointInterestReceivables_lbl0" xml:lang="en-US">Amount of accrued joint interest receivables.</label> 
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_AccruedJointInterestReceivables" xlink:to="gfr_AccruedJointInterestReceivables_lbl0"/>  
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gfr_AccumulatedDepletionDepreciationandAmortizationBalance_lbl1" xml:lang="en-US">Represent the amount of accumulated deplection, depreciation and amortization.</label>  
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_AccumulatedDepletionDepreciationandAmortizationBalance" xlink:to="gfr_AccumulatedDepletionDepreciationandAmortizationBalance_lbl1"/>   
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gfr_AdjustmentForDifferencesInProvincialIncomeTaxPools_lbl0" xml:lang="en-US">Represent the amount of adjustment for differences in provincial income tax pools.</label>  
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_AdjustmentForDifferencesInProvincialIncomeTaxPools" xlink:to="gfr_AdjustmentForDifferencesInProvincialIncomeTaxPools_lbl0"/>     
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gfr_AdjustmentsForOtherIncome_lbl0" xml:lang="en-US">The amount of adjustments for non-cash items in other income.</label> 
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_AdjustmentsForOtherIncome" xlink:to="gfr_AdjustmentsForOtherIncome_lbl0"/>     
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gfr_AmortizationOfDebtIssuanceCostsAndRedemptionPremium_lbl0" xml:lang="en-US">Amortization of debt issuance costs and redemption premium.</label>     
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_AmortizationOfDebtIssuanceCostsAndRedemptionPremium" xlink:to="gfr_AmortizationOfDebtIssuanceCostsAndRedemptionPremium_lbl0"/>  
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gfr_AmountOfUnamortizedFinancingCosts_lbl1" xml:lang="en-US">Amount of unamortized financing costs.</label> 
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_AmountOfUnamortizedFinancingCosts" xlink:to="gfr_AmountOfUnamortizedFinancingCosts_lbl1"/> 
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gfr_AnnualCapitalExpenditureLimitation_lbl0" xml:lang="en-US">Represent the amount of annual capital expenditure limitation.</label> 
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_AnnualCapitalExpenditureLimitation" xlink:to="gfr_AnnualCapitalExpenditureLimitation_lbl0"/>   
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gfr_CapitalExpendituresPrincipalOutstanding_lbl0" xml:lang="en-US">Amount owing on the senior notes.</label>  
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_CapitalExpendituresPrincipalOutstanding" xlink:to="gfr_CapitalExpendituresPrincipalOutstanding_lbl0"/>   
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gfr_CapitalGainOnDebtSettlementinDollars_lbl0" xml:lang="en-US">The amount of capital gain on debt settlement.</label>  
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_CapitalGainOnDebtSettlementinDollars" xlink:to="gfr_CapitalGainOnDebtSettlementinDollars_lbl0"/>  
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gfr_ChangeInDecommissioningLiabilities_lbl0" xml:lang="en-US">The amount of change in decommissioning liabilities.</label> 
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_ChangeInDecommissioningLiabilities" xlink:to="gfr_ChangeInDecommissioningLiabilities_lbl0"/>   
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gfr_ChangeInFairValue_lbl0" xml:lang="en-US">Change in fair value.</label>   
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_ChangeInFairValue" xlink:to="gfr_ChangeInFairValue_lbl0"/>    
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gfr_ChangeInIncomeTaxPayable_lbl0" xml:lang="en-US">Change in income tax payable.</label>   
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_ChangeInIncomeTaxPayable" xlink:to="gfr_ChangeInIncomeTaxPayable_lbl0"/>   
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gfr_ChangeInPrepaidExpensesAndDeposits_lbl0" xml:lang="en-US">The amount of change in prepaid expenses and deposits.</label>   
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_ChangeInPrepaidExpensesAndDeposits" xlink:to="gfr_ChangeInPrepaidExpensesAndDeposits_lbl0"/>   
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gfr_ChangeInUnrecognizedDeferredTaxAsset_lbl0" xml:lang="en-US">The change in valuation allowance on a deferred tax asset.</label>    
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_ChangeInUnrecognizedDeferredTaxAsset" xlink:to="gfr_ChangeInUnrecognizedDeferredTaxAsset_lbl0"/>  
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gfr_ChangeInWorkingCapital_lbl0" xml:lang="en-US">Change in working capital.</label>   
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_ChangeInWorkingCapital" xlink:to="gfr_ChangeInWorkingCapital_lbl0"/>    
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gfr_ChangeinTaxAssetRecognizedShareIssuanceCostsEquity_lbl0" xml:lang="en-US">The amount of share issuance costs - equity.</label>    
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_ChangeinTaxAssetRecognizedShareIssuanceCostsEquity" xlink:to="gfr_ChangeinTaxAssetRecognizedShareIssuanceCostsEquity_lbl0"/>     
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gfr_ClassOfWarrantsOrRightsExercisePrice_lbl0" xml:lang="en-US">The amount of class of warrants or rights, exercise price.</label>    
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_ClassOfWarrantsOrRightsExercisePrice" xlink:to="gfr_ClassOfWarrantsOrRightsExercisePrice_lbl0"/>  
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gfr_CombinedFederalAndProvincialIncomeTaxPools_lbl0" xml:lang="en-US">Represent the amount of combined federal and provincial income tax pools.</label>     
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_CombinedFederalAndProvincialIncomeTaxPools" xlink:to="gfr_CombinedFederalAndProvincialIncomeTaxPools_lbl0"/>    
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gfr_CommodityRiskCallPrice_lbl0" xml:lang="en-US">Number of commodity risk call price.</label>   
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_CommodityRiskCallPrice" xlink:to="gfr_CommodityRiskCallPrice_lbl0"/>    
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gfr_CommodityRiskManagementContractVolume_lbl0" xml:lang="en-US">Number of commodity risk management contract volume.</label>    
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_CommodityRiskManagementContractVolume" xlink:to="gfr_CommodityRiskManagementContractVolume_lbl0"/>    
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gfr_CommodityRiskPutPrice_lbl0" xml:lang="en-US">Number of commodity risk put price.</label> 
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_CommodityRiskPutPrice" xlink:to="gfr_CommodityRiskPutPrice_lbl0"/>  
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gfr_CommodityRiskSwapPrice_lbl0" xml:lang="en-US">Commodity risk swap price per share.</label>   
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_CommodityRiskSwapPrice" xlink:to="gfr_CommodityRiskSwapPrice_lbl0"/>    
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gfr_CommonSharePricePerShare_lbl0" xml:lang="en-US">Common share price per share.</label>   
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_CommonSharePricePerShare" xlink:to="gfr_CommonSharePricePerShare_lbl0"/>   
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gfr_CommonSharesLimitedPartnershipOwnershipPercentage_lbl0" xml:lang="en-US">Percentage of common shares limited partnership ownership interest.</label> 
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_CommonSharesLimitedPartnershipOwnershipPercentage" xlink:to="gfr_CommonSharesLimitedPartnershipOwnershipPercentage_lbl0"/>   
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gfr_CorporateCapitalTaxLossesCarriedForward_lbl0" xml:lang="en-US">Amount of corporate capital tax losses carried forward.</label>    
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_CorporateCapitalTaxLossesCarriedForward" xlink:to="gfr_CorporateCapitalTaxLossesCarriedForward_lbl0"/>   
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gfr_CreditAdjustedDiscountRatePercentage_lbl0" xml:lang="en-US">Perentage of credit-adjusted discount rate.</label>    
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_CreditAdjustedDiscountRatePercentage" xlink:to="gfr_CreditAdjustedDiscountRatePercentage_lbl0"/>  
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gfr_CreditFacility_lbl0" xml:lang="en-US">It represents amount of credit facility.</label>    
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_CreditFacility" xlink:to="gfr_CreditFacility_lbl0"/>   
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gfr_CurrentLegalFees_lbl0" xml:lang="en-US">The amount of legal fee.</label>     
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_CurrentLegalFees" xlink:to="gfr_CurrentLegalFees_lbl0"/>  
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gfr_DebtRedemptionPremiumFinancingActivities_lbl0" xml:lang="en-US">The amount of debt redemption premium financing activities.</label>    
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_DebtRedemptionPremiumFinancingActivities" xlink:to="gfr_DebtRedemptionPremiumFinancingActivities_lbl0"/>     
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gfr_DecommissioningCostsIncurred_lbl0" xml:lang="en-US">The amount of decommissioning costs incurred.</label>   
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_DecommissioningCostsIncurred" xlink:to="gfr_DecommissioningCostsIncurred_lbl0"/> 
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gfr_DecommissioningLiabilities_lbl2" xml:lang="en-US">The estimated costs to abandon, decommission and reclaim of a long-lived asset.</label>     
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_DecommissioningLiabilities" xlink:to="gfr_DecommissioningLiabilities_lbl2"/>  
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gfr_DecommissioningLiabilitiesAcquisitions_lbl0" xml:lang="en-US">Represent the amount of decommissioning liabilities acquisitions.</label>   
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_DecommissioningLiabilitiesAcquisitions" xlink:to="gfr_DecommissioningLiabilitiesAcquisitions_lbl0"/> 
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gfr_DecommissioningLiabilitiesChangeInEstimates_lbl0" xml:lang="en-US">Represent the amount of decommissioning liabilities change in estimates.</label>     
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_DecommissioningLiabilitiesChangeInEstimates" xlink:to="gfr_DecommissioningLiabilitiesChangeInEstimates_lbl0"/> 
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gfr_DecommissioningLiabilitiesIncurred_lbl0" xml:lang="en-US">Represent the amount of decommissioning liabilities incurred.</label>     
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_DecommissioningLiabilitiesIncurred" xlink:to="gfr_DecommissioningLiabilitiesIncurred_lbl0"/>   
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gfr_DecommissioningObligations_lbl0" xml:lang="en-US">The amount of decommissioning obligations.</label>   
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_DecommissioningObligations" xlink:to="gfr_DecommissioningObligations_lbl0"/>  
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gfr_DecommissioningObligationsValue_lbl0" xml:lang="en-US">Represent the amount of decommissioning obligations.</label>   
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_DecommissioningObligationsValue" xlink:to="gfr_DecommissioningObligationsValue_lbl0"/>  
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gfr_DeferredIncomeTaxExpensePropertyPlantampEquipment_lbl0" xml:lang="en-US">It represents deferred income tax expense related to property plant and equipment.</label> 
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_DeferredIncomeTaxExpensePropertyPlantampEquipment" xlink:to="gfr_DeferredIncomeTaxExpensePropertyPlantampEquipment_lbl0"/>   
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gfr_DeferredTaxAssetLiabilityLongTermDebt_lbl0" xml:lang="en-US">Amount, after deduction of unamortized premium (discount) and debt issuance cost, of long-term debt. Excludes lease obligation.</label>    
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_DeferredTaxAssetLiabilityLongTermDebt" xlink:to="gfr_DeferredTaxAssetLiabilityLongTermDebt_lbl0"/>    
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gfr_DeferredTaxAssetLiabilityRiskManagementContracts_lbl0" xml:lang="en-US">Represent the amount of risk management contracts.</label>   
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_DeferredTaxAssetLiabilityRiskManagementContracts" xlink:to="gfr_DeferredTaxAssetLiabilityRiskManagementContracts_lbl0"/> 
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gfr_DeferredTaxAssetsShareIssuanceCosts_lbl0" xml:lang="en-US">Represent the amount of share issuance costs.</label>     
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_DeferredTaxAssetsShareIssuanceCosts" xlink:to="gfr_DeferredTaxAssetsShareIssuanceCosts_lbl0"/>     
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gfr_DescriptionOfAccountingPoliciesForPrinciplesOfConsolidationTextBlock_lbl0" xml:lang="en-US">Accounting policy for principlesof consolidations.</label>   
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_DescriptionOfAccountingPoliciesForPrinciplesOfConsolidationTextBlock" xlink:to="gfr_DescriptionOfAccountingPoliciesForPrinciplesOfConsolidationTextBlock_lbl0"/> 
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gfr_DescriptionOfAccountingPolicyForJointArrangementsTextBlock_lbl0" xml:lang="en-US">Description of accounting policy for joint arrangements.</label>    
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_DescriptionOfAccountingPolicyForJointArrangementsTextBlock" xlink:to="gfr_DescriptionOfAccountingPolicyForJointArrangementsTextBlock_lbl0"/> 
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gfr_DescriptionOfAccountingPolicyForProvisionAndContingentLiabilitiesTextBlock_lbl0" xml:lang="en-US">Description of accounting policy for provision and contingent liabilities.</label>   
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_DescriptionOfAccountingPolicyForProvisionAndContingentLiabilitiesTextBlock" xlink:to="gfr_DescriptionOfAccountingPolicyForProvisionAndContingentLiabilitiesTextBlock_lbl0"/>   
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gfr_DescriptionOfAccountingPolicyForStandardsIssuedButNotEffectiveTextBlock_lbl0" xml:lang="en-US">The description of the entity&apos;s material accounting policy information for standards issued but not effective.</label> 
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_DescriptionOfAccountingPolicyForStandardsIssuedButNotEffectiveTextBlock" xlink:to="gfr_DescriptionOfAccountingPolicyForStandardsIssuedButNotEffectiveTextBlock_lbl0"/>  
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gfr_DiluentExpense_lbl0" xml:lang="en-US">It represents amount of diluent expense.</label>    
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_DiluentExpense" xlink:to="gfr_DiluentExpense_lbl0"/>   
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gfr_DisclosureOfAccountsPayableAndAccruedLiabilities_lbl0" xml:lang="en-US">The entire disclosure of accounts payable and accrued.liabilities.</label>    
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_DisclosureOfAccountsPayableAndAccruedLiabilities" xlink:to="gfr_DisclosureOfAccountsPayableAndAccruedLiabilities_lbl0"/> 
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gfr_DisclosureOfCapitalManagementTextBlock_lbl0" xml:lang="en-US">The entire disclosure of capital managements.</label>   
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_DisclosureOfCapitalManagementTextBlock" xlink:to="gfr_DisclosureOfCapitalManagementTextBlock_lbl0"/> 
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gfr_DisclosureOfCommitmentsTableTextBlock_lbl0" xml:lang="en-US">Tabular disclosure of commitments.</label> 
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_DisclosureOfCommitmentsTableTextBlock" xlink:to="gfr_DisclosureOfCommitmentsTableTextBlock_lbl0"/>    
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gfr_DisclosureOfDecommissioningLiabilitiesTextBlock_lbl0" xml:lang="en-US">Disclosure of decommissioning liabilities.</label>    
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_DisclosureOfDecommissioningLiabilitiesTextBlock" xlink:to="gfr_DisclosureOfDecommissioningLiabilitiesTextBlock_lbl0"/>    
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gfr_DisclosureOfFairValueOfEachWarrantWasEstimatedOnItsGrantDateUsingTheBlackScholesMertonValuationModelTextBlock_lbl0" xml:lang="en-US">Tabular disclosure of fair value of each warrant was estimated grant date.</label>   
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_DisclosureOfFairValueOfEachWarrantWasEstimatedOnItsGrantDateUsingTheBlackScholesMertonValuationModelTextBlock" xlink:to="gfr_DisclosureOfFairValueOfEachWarrantWasEstimatedOnItsGrantDateUsingTheBlackScholesMertonValuationModelTextBlock_lbl0"/>   
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gfr_DisclosureOfFinancialCommodityRiskManagementContractsTextBlock_lbl0" xml:lang="en-US">Tabular disclosure of financial commodity risk management.</label>     
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_DisclosureOfFinancialCommodityRiskManagementContractsTextBlock" xlink:to="gfr_DisclosureOfFinancialCommodityRiskManagementContractsTextBlock_lbl0"/>    
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gfr_DisclosureOfFinancingAndInterestTextBlock_lbl0" xml:lang="en-US">Tabular disclosure of financing and interest.</label> 
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_DisclosureOfFinancingAndInterestTextBlock" xlink:to="gfr_DisclosureOfFinancingAndInterestTextBlock_lbl0"/>  
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gfr_DisclosureOfGrossAssetAndLiabilityPositionsOfTheCompanysIndividualRiskManagementContractTextBlock_lbl0" xml:lang="en-US">Tabular disclosure of gross asset and liability position of company risk management contracts.</label> 
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_DisclosureOfGrossAssetAndLiabilityPositionsOfTheCompanysIndividualRiskManagementContractTextBlock" xlink:to="gfr_DisclosureOfGrossAssetAndLiabilityPositionsOfTheCompanysIndividualRiskManagementContractTextBlock_lbl0"/>    
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gfr_DisclosureOfIncomeTaxExpenseTextBlock_lbl0" xml:lang="en-US">The disclosure of income tax expenses.</label>     
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_DisclosureOfIncomeTaxExpenseTextBlock" xlink:to="gfr_DisclosureOfIncomeTaxExpenseTextBlock_lbl0"/>    
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gfr_DisclosureOfInventoriesTableTextBlock_lbl0" xml:lang="en-US">The disclosure of inventories.</label>  
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_DisclosureOfInventoriesTableTextBlock" xlink:to="gfr_DisclosureOfInventoriesTableTextBlock_lbl0"/>    
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gfr_DisclosureOfLeaseLiabilitiesExplanatoryTableTextBlock_lbl0" xml:lang="en-US">Tabular disclosure of lease liabilities.</label>   
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_DisclosureOfLeaseLiabilitiesExplanatoryTableTextBlock" xlink:to="gfr_DisclosureOfLeaseLiabilitiesExplanatoryTableTextBlock_lbl0"/> 
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gfr_DisclosureOfMinimumHedgingRequirementsTableTextBlock_lbl0" xml:lang="en-US">The entire disclosure of minimum hedging requirements.</label> 
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_DisclosureOfMinimumHedgingRequirementsTableTextBlock" xlink:to="gfr_DisclosureOfMinimumHedgingRequirementsTableTextBlock_lbl0"/>    
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gfr_DisclosureOfReconcilesTheWarrantLiabilityTextBlock_lbl0" xml:lang="en-US">Tabular disclosure of reconciles the warrant liability.</label>     
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_DisclosureOfReconcilesTheWarrantLiabilityTextBlock" xlink:to="gfr_DisclosureOfReconcilesTheWarrantLiabilityTextBlock_lbl0"/>     
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gfr_DisclosureOfReconsilationOfDecommissioningLiabilitiesTextBlock_lbl0" xml:lang="en-US">Tabular disclosure of reconsilation of decommissioning liability.</label>  
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_DisclosureOfReconsilationOfDecommissioningLiabilitiesTextBlock" xlink:to="gfr_DisclosureOfReconsilationOfDecommissioningLiabilitiesTextBlock_lbl0"/>    
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gfr_DisclosureOfSummarizedChangesToTheCompanysCommonShareCapitalTableTextBlock_lbl0" xml:lang="en-US">The entire disclosure of summarized changes to the company&#8217;s common share capital.</label>  
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_DisclosureOfSummarizedChangesToTheCompanysCommonShareCapitalTableTextBlock" xlink:to="gfr_DisclosureOfSummarizedChangesToTheCompanysCommonShareCapitalTableTextBlock_lbl0"/>   
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gfr_EmissionsCreditsHeldForUse_lbl0" xml:lang="en-US">The amount of inventories of emissions credits held for use.</label> 
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_EmissionsCreditsHeldForUse" xlink:to="gfr_EmissionsCreditsHeldForUse_lbl0"/>  
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gfr_EstimatedFutureUnrecognizedCommitments_lbl0" xml:lang="en-US">The amount of estimated future unrecognized commitments.</label>    
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_EstimatedFutureUnrecognizedCommitments" xlink:to="gfr_EstimatedFutureUnrecognizedCommitments_lbl0"/> 
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gfr_ExpectedStatutoryIncomeTaxRate_lbl0" xml:lang="en-US">Expected statutory income tax rate.</label>     
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_ExpectedStatutoryIncomeTaxRate" xlink:to="gfr_ExpectedStatutoryIncomeTaxRate_lbl0"/>     
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gfr_ExplorationAndOtherExpenses_lbl0" xml:lang="en-US">Exploration and other expenses.</label>   
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_ExplorationAndOtherExpenses" xlink:to="gfr_ExplorationAndOtherExpenses_lbl0"/>    
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gfr_FairMarketValueOfConsultingService_lbl0" xml:lang="en-US">The amount of consulting service.</label>  
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_FairMarketValueOfConsultingService" xlink:to="gfr_FairMarketValueOfConsultingService_lbl0"/>   
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gfr_FairValueOfCommodityRiskManagementContractsDecrease_lbl0" xml:lang="en-US">Represent the value of fair value of commodity risk management contracts decrease.</label>   
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_FairValueOfCommodityRiskManagementContractsDecrease" xlink:to="gfr_FairValueOfCommodityRiskManagementContractsDecrease_lbl0"/>  
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gfr_FairValueOfCommodityRiskManagementContractsIncrease_lbl0" xml:lang="en-US">Represent the value of fair Value of commodity risk management contracts increase.</label>   
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_FairValueOfCommodityRiskManagementContractsIncrease" xlink:to="gfr_FairValueOfCommodityRiskManagementContractsIncrease_lbl0"/>  
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gfr_FinancialInstrumentClassification_lbl0" xml:lang="en-US">Financial instrument classifications.</label>     
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_FinancialInstrumentClassification" xlink:to="gfr_FinancialInstrumentClassification_lbl0"/> 
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gfr_FinancingAndInterest_lbl0" xml:lang="en-US">The amount of expense relating to accretion of debt long-term debt and decommission liabilities along with interest costs.</label>  
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_FinancingAndInterest" xlink:to="gfr_FinancingAndInterest_lbl0"/>     
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gfr_FinancingAndInterestExpenses_lbl0" xml:lang="en-US">The amount of financing and interest.</label>     
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_FinancingAndInterestExpenses" xlink:to="gfr_FinancingAndInterestExpenses_lbl0"/> 
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gfr_GainOnBusinessCombination_lbl0" xml:lang="en-US">Gain on business combination.</label>    
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_GainOnBusinessCombination" xlink:to="gfr_GainOnBusinessCombination_lbl0"/>     
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gfr_GainOnWarrantRevaluation_lbl0" xml:lang="en-US">It represents gain on warrant revaluation.</label> 
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_GainOnWarrantRevaluation" xlink:to="gfr_GainOnWarrantRevaluation_lbl0"/>   
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gfr_GainlossOnRiskManagementContract_lbl0" xml:lang="en-US">Gain (loss) on risk management contracts.</label>   
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_GainlossOnRiskManagementContract" xlink:to="gfr_GainlossOnRiskManagementContract_lbl0"/>    
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gfr_GainlossOnRiskManagementContracts_lbl0" xml:lang="en-US">Gain (loss) on risk management contracts.</label>    
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_GainlossOnRiskManagementContracts" xlink:to="gfr_GainlossOnRiskManagementContracts_lbl0"/> 
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gfr_IncomeTaxLossesCarriedForward_lbl0" xml:lang="en-US">Income tax losses carried forward</label>  
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_IncomeTaxLossesCarriedForward" xlink:to="gfr_IncomeTaxLossesCarriedForward_lbl0"/>   
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gfr_IncreaseDecreaseThroughIssuanceAndExerciseOfBondWarrants_lbl0" xml:lang="en-US">Increase decrease through issuance and exercise of bond warrants.</label> 
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_IncreaseDecreaseThroughIssuanceAndExerciseOfBondWarrants" xlink:to="gfr_IncreaseDecreaseThroughIssuanceAndExerciseOfBondWarrants_lbl0"/>  
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gfr_IncreaseDecreaseThroughIssuanceOfSharesOnExerciseOfShareUnits_lbl0" xml:lang="en-US">Issuance of shares on exercise of share units.</label>  
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_IncreaseDecreaseThroughIssuanceOfSharesOnExerciseOfShareUnits" xlink:to="gfr_IncreaseDecreaseThroughIssuanceOfSharesOnExerciseOfShareUnits_lbl0"/>  
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gfr_IncreasedecreaseIssuanceOfSharesOnRightsOffering_lbl0" xml:lang="en-US">The increase (decrease) in issuance of shares on rights offering.</label>   
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_IncreasedecreaseIssuanceOfSharesOnRightsOffering" xlink:to="gfr_IncreasedecreaseIssuanceOfSharesOnRightsOffering_lbl0"/> 
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gfr_IncreasedecreaseShareIssuanceCostsNetOfTax_lbl0" xml:lang="en-US">The increase (decrease) in share issuance costs, net of tax.</label>  
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_IncreasedecreaseShareIssuanceCostsNetOfTax" xlink:to="gfr_IncreasedecreaseShareIssuanceCostsNetOfTax_lbl0"/>    
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gfr_IssuedOnExerciseOfShareUnit_lbl0" xml:lang="en-US">Issued on exercise of share units.</label> 
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_IssuedOnExerciseOfShareUnit" xlink:to="gfr_IssuedOnExerciseOfShareUnit_lbl0"/>    
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gfr_IssuedOnExerciseOfShareUnits_lbl0" xml:lang="en-US">Issued on exercise of share units.</label>  
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_IssuedOnExerciseOfShareUnits" xlink:to="gfr_IssuedOnExerciseOfShareUnits_lbl0"/> 
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gfr_JointInterestReceivables_lbl0" xml:lang="en-US">The amount owing from a joint interest partner.</label> 
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_JointInterestReceivables" xlink:to="gfr_JointInterestReceivables_lbl0"/>   
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gfr_LeaseLiabilityAdditions_lbl0" xml:lang="en-US">Lease liability additions.</label>    
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_LeaseLiabilityAdditions" xlink:to="gfr_LeaseLiabilityAdditions_lbl0"/> 
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gfr_LettersOfCreditOutstanding_lbl0" xml:lang="en-US">Amount of letters of credit outstanding.</label> 
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_LettersOfCreditOutstanding" xlink:to="gfr_LettersOfCreditOutstanding_lbl0"/>  
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gfr_LimitCapitalExpenditures_lbl0" xml:lang="en-US">Amount of limit capital expenditures.</label> 
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_LimitCapitalExpenditures" xlink:to="gfr_LimitCapitalExpenditures_lbl0"/>   
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gfr_LongtermDebtForeignCurrencyExchangeRateTranslation_lbl0" xml:lang="en-US">Amount of long-term debt, foreign exchange.</label>   
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_LongtermDebtForeignCurrencyExchangeRateTranslation" xlink:to="gfr_LongtermDebtForeignCurrencyExchangeRateTranslation_lbl0"/>     
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gfr_LongtermDebtNoncashFinancingExpense_lbl0" xml:lang="en-US">Amount of long-term debt, non-cash financing expense.</label>   
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_LongtermDebtNoncashFinancingExpense" xlink:to="gfr_LongtermDebtNoncashFinancingExpense_lbl0"/>     
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gfr_LongtermDebtRedemptionPayments_lbl0" xml:lang="en-US">Amount of long-term debt, redemption payments.</label> 
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_LongtermDebtRedemptionPayments" xlink:to="gfr_LongtermDebtRedemptionPayments_lbl0"/>     
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gfr_MaturityDate_lbl0" xml:lang="en-US">The date on which the maturity.</label>   
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_MaturityDate" xlink:to="gfr_MaturityDate_lbl0"/>    
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gfr_MaturityDateOfSeniorCreditFacility_lbl0" xml:lang="en-US">Date when the credit facility is scheduled to be fully repaid, in YYYY-MM-DD format.</label>   
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_MaturityDateOfSeniorCreditFacility" xlink:to="gfr_MaturityDateOfSeniorCreditFacility_lbl0"/>   
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gfr_MinimumHedgingRequirementsPercentage_lbl0" xml:lang="en-US">Minimum hedging requirements percentage.</label> 
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_MinimumHedgingRequirementsPercentage" xlink:to="gfr_MinimumHedgingRequirementsPercentage_lbl0"/>  
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gfr_NetChangeInNoncashWorkingCapital_lbl0" xml:lang="en-US">The amount of net change in non-cash working capital.</label>     
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_NetChangeInNoncashWorkingCapital" xlink:to="gfr_NetChangeInNoncashWorkingCapital_lbl0"/>    
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gfr_NonCashWorkingCapitalRelatedToInvestingActivitiesaccruedAdditionsPropertyPlantandEquipment_lbl0" xml:lang="en-US">Non cash working capital related to investing activities.</label>  
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_NonCashWorkingCapitalRelatedToInvestingActivitiesaccruedAdditionsPropertyPlantandEquipment" xlink:to="gfr_NonCashWorkingCapitalRelatedToInvestingActivitiesaccruedAdditionsPropertyPlantandEquipment_lbl0"/>     
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gfr_NonCashWorkingCapitalRelatedToOperatingActivities_lbl0" xml:lang="en-US">Non cash working capital related to operating activities.</label> 
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_NonCashWorkingCapitalRelatedToOperatingActivities" xlink:to="gfr_NonCashWorkingCapitalRelatedToOperatingActivities_lbl0"/>   
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gfr_NoncashWorkingCapital_lbl0" xml:lang="en-US">Non cash working capital.</label> 
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_NoncashWorkingCapital" xlink:to="gfr_NoncashWorkingCapital_lbl0"/>  
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gfr_NumberOfCommonShares_lbl0" xml:lang="en-US">Number of common shares.</label>    
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_NumberOfCommonShares" xlink:to="gfr_NumberOfCommonShares_lbl0"/>     
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gfr_NumberOfCommonStockReceivedOnExerciseOfWarrants_lbl0" xml:lang="en-US">Number of common stock received on exercise of warrants.</label>   
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_NumberOfCommonStockReceivedOnExerciseOfWarrants" xlink:to="gfr_NumberOfCommonStockReceivedOnExerciseOfWarrants_lbl0"/>    
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gfr_NumberOfOutstandingShareUnitsWereExercisable_lbl0" xml:lang="en-US">Number of outstanding share units were exercisable.</label>     
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_NumberOfOutstandingShareUnitsWereExercisable" xlink:to="gfr_NumberOfOutstandingShareUnitsWereExercisable_lbl0"/>   
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gfr_NumberOfPerformanceWarrantsOutstanding_lbl0" xml:lang="en-US">Number of performance warrants outstanding.</label> 
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_NumberOfPerformanceWarrantsOutstanding" xlink:to="gfr_NumberOfPerformanceWarrantsOutstanding_lbl0"/> 
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gfr_NumberOfReportableOperatingSegment_lbl0" xml:lang="en-US">Number of reportable operating segment.</label>   
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_NumberOfReportableOperatingSegment" xlink:to="gfr_NumberOfReportableOperatingSegment_lbl0"/>   
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gfr_NumberOfSharesUnits_lbl0" xml:lang="en-US">Number of shares units.</label>  
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_NumberOfSharesUnits" xlink:to="gfr_NumberOfSharesUnits_lbl0"/>   
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gfr_NumberOfStockIssuedToRelatedParty_lbl0" xml:lang="en-US">Number of stock issued to related party.</label>   
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_NumberOfStockIssuedToRelatedParty" xlink:to="gfr_NumberOfStockIssuedToRelatedParty_lbl0"/> 
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gfr_NumberOfWarrantsCommonSharesIssuableOnExercise_lbl0" xml:lang="en-US">The number of warrants shares issuable on exercise.</label>  
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_NumberOfWarrantsCommonSharesIssuableOnExercise" xlink:to="gfr_NumberOfWarrantsCommonSharesIssuableOnExercise_lbl0"/>  
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gfr_NumberOfWarrantsCommonSharesIssuableOnExerciseAmount_lbl0" xml:lang="en-US">Common shares issuable on exercise of warrants.</label>    
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_NumberOfWarrantsCommonSharesIssuableOnExerciseAmount" xlink:to="gfr_NumberOfWarrantsCommonSharesIssuableOnExerciseAmount_lbl0"/>    
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gfr_NumberOfWarrantsOutstandingValue_lbl1" xml:lang="en-US">Number of warrant outstanding value.</label>   
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_NumberOfWarrantsOutstandingValue" xlink:to="gfr_NumberOfWarrantsOutstandingValue_lbl1"/>    
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gfr_NumberOfWarrantsShareOutstanding_lbl1" xml:lang="en-US">Number of warrant share outstanding.</label>   
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_NumberOfWarrantsShareOutstanding" xlink:to="gfr_NumberOfWarrantsShareOutstanding_lbl1"/>    
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gfr_OilInventories_lbl0" xml:lang="en-US">Oil inventories.</label>     
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_OilInventories" xlink:to="gfr_OilInventories_lbl0"/>   
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gfr_OperatingFacilities_lbl0" xml:lang="en-US">Operating facility.</label>   
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_OperatingFacilities" xlink:to="gfr_OperatingFacilities_lbl0"/>   
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gfr_OtherCommitments_lbl0" xml:lang="en-US">Other commitments.</label>    
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_OtherCommitments" xlink:to="gfr_OtherCommitments_lbl0"/>  
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gfr_OtherPermanentDifferences_lbl0" xml:lang="en-US">Amount of other permanent differences.</label>   
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_OtherPermanentDifferences" xlink:to="gfr_OtherPermanentDifferences_lbl0"/>     
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gfr_OutstandingCommonSharesPercentage_lbl0" xml:lang="en-US">The percentage of outstanding common shares.</label>  
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_OutstandingCommonSharesPercentage" xlink:to="gfr_OutstandingCommonSharesPercentage_lbl0"/> 
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gfr_OutstandingPrincipalPercentage_lbl0" xml:lang="en-US">Percentage of outstanding principal.</label> 
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_OutstandingPrincipalPercentage" xlink:to="gfr_OutstandingPrincipalPercentage_lbl0"/>     
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gfr_PercentageOfInterestReceivables_lbl0" xml:lang="en-US">Represent the value of interest receivable percent.</label>  
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_PercentageOfInterestReceivables" xlink:to="gfr_PercentageOfInterestReceivables_lbl0"/>  
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gfr_PercentageOfVoluntarilyRedeemedPrincipalAmount_lbl0" xml:lang="en-US">Percentage of voluntarily redeemed principal amount.</label>   
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_PercentageOfVoluntarilyRedeemedPrincipalAmount" xlink:to="gfr_PercentageOfVoluntarilyRedeemedPrincipalAmount_lbl0"/>  
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gfr_PrincipalAmountOfForeignCurrencyExchangeRateTranslation_lbl0" xml:lang="en-US">Principal amount of foreign exchange.</label>  
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_PrincipalAmountOfForeignCurrencyExchangeRateTranslation" xlink:to="gfr_PrincipalAmountOfForeignCurrencyExchangeRateTranslation_lbl0"/>     
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gfr_PrincipalAmountOfNoncashFinancingExpense_lbl0" xml:lang="en-US">Principal amount of non-cash financing expense.</label>  
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_PrincipalAmountOfNoncashFinancingExpense" xlink:to="gfr_PrincipalAmountOfNoncashFinancingExpense_lbl0"/>     
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gfr_PrincipalAmountOfRedemptionPayments_lbl0" xml:lang="en-US">Principal amount of redemption payments.</label>     
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_PrincipalAmountOfRedemptionPayments" xlink:to="gfr_PrincipalAmountOfRedemptionPayments_lbl0"/>     
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gfr_PrincipalAmountPercentage_lbl0" xml:lang="en-US">Principal amount percentage.</label>   
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_PrincipalAmountPercentage" xlink:to="gfr_PrincipalAmountPercentage_lbl0"/>     
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gfr_RealizedLossOnRiskManagementContracts_lbl0" xml:lang="en-US">Realized loss on risk management contracts.</label>     
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_RealizedLossOnRiskManagementContracts" xlink:to="gfr_RealizedLossOnRiskManagementContracts_lbl0"/>    
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gfr_RemeasurementOfRightofuseAssets_lbl0" xml:lang="en-US">The amount of remeasurement of right of use assets.</label>  
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_RemeasurementOfRightofuseAssets" xlink:to="gfr_RemeasurementOfRightofuseAssets_lbl0"/>  
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gfr_RightOfUseAssetsLeaseModificationsAndTerminations_lbl0" xml:lang="en-US">The amount of lease modifications and terminations.</label>     
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_RightOfUseAssetsLeaseModificationsAndTerminations" xlink:to="gfr_RightOfUseAssetsLeaseModificationsAndTerminations_lbl0"/>   
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gfr_RiskManagementContractAssetGross_lbl0" xml:lang="en-US">Amount of risk management contract asset.</label>   
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_RiskManagementContractAssetGross" xlink:to="gfr_RiskManagementContractAssetGross_lbl0"/>    
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gfr_RiskManagementContractLiabilityOffsetAmount_lbl0" xml:lang="en-US">Risk management contract liability offset amount.</label>  
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_RiskManagementContractLiabilityOffsetAmount" xlink:to="gfr_RiskManagementContractLiabilityOffsetAmount_lbl0"/> 
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gfr_RiskManagementContracts_lbl1" xml:lang="en-US">Contracts entered into to reduce the volatility of revenue and cash flow and may consist of hedging instruments such as fixed price swaps and option structures, including costless collars on WTI, WCS differentials, condensate differential, natural gas and electricity swaps.</label>  
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_RiskManagementContracts" xlink:to="gfr_RiskManagementContracts_lbl1"/> 
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gfr_RiskManagementContractsAssets_lbl0" xml:lang="en-US">Amount of risk management contracts.</label>     
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_RiskManagementContractsAssets" xlink:to="gfr_RiskManagementContractsAssets_lbl0"/>   
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gfr_SecuredNotesIssued_lbl0" xml:lang="en-US">Secured notes issued.</label>    
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_SecuredNotesIssued" xlink:to="gfr_SecuredNotesIssued_lbl0"/> 
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gfr_ShareBasedCompensations_lbl0" xml:lang="en-US">Amount of share based compensation.</label>   
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_ShareBasedCompensations" xlink:to="gfr_ShareBasedCompensations_lbl0"/> 
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gfr_ShareIssuanceCostsRelatedToNetOfTax_lbl1" xml:lang="en-US">The amount of share issuance costs related to net of tax.</label>  
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_ShareIssuanceCostsRelatedToNetOfTax" xlink:to="gfr_ShareIssuanceCostsRelatedToNetOfTax_lbl1"/>     
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gfr_StockBasedCompensation_lbl0" xml:lang="en-US">Amount of stock based compensation.</label>  
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_StockBasedCompensation" xlink:to="gfr_StockBasedCompensation_lbl0"/>    
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gfr_StockbasedCompensation_lbl0" xml:lang="en-US">Amount of stock-based compensation.</label>  
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_StockbasedCompensation" xlink:to="gfr_StockbasedCompensation_lbl0"/>    
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gfr_SyndicatedFacility_lbl0" xml:lang="en-US">Syndicated facility.</label>   
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_SyndicatedFacility" xlink:to="gfr_SyndicatedFacility_lbl0"/> 
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gfr_TradeReceivablesPercentage_lbl0" xml:lang="en-US">Trade receivables percentage.</label>     
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_TradeReceivablesPercentage" xlink:to="gfr_TradeReceivablesPercentage_lbl0"/>  
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gfr_UnamortizedFinancingCostsOfForeignExchange_lbl0" xml:lang="en-US">Amount of unamortized financing costs of foreign exchange.</label>     
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_UnamortizedFinancingCostsOfForeignExchange" xlink:to="gfr_UnamortizedFinancingCostsOfForeignExchange_lbl0"/>    
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gfr_UnamortizedFinancingCostsOfNoncashFinancingExpense_lbl0" xml:lang="en-US">Amount of unamortized financing costs of non-cash financing expense.</label>   
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_UnamortizedFinancingCostsOfNoncashFinancingExpense" xlink:to="gfr_UnamortizedFinancingCostsOfNoncashFinancingExpense_lbl0"/>     
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gfr_UnamortizedFinancingCostsOfRedemptionPayments_lbl0" xml:lang="en-US">Amount of unamortized financing costs of redemption payments.</label> 
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_UnamortizedFinancingCostsOfRedemptionPayments" xlink:to="gfr_UnamortizedFinancingCostsOfRedemptionPayments_lbl0"/>     
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gfr_UnrealizedForeignExchangeLossInAccountsPayable_lbl0" xml:lang="en-US">Amount of foreign exchange loss in accounts payable.</label>   
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_UnrealizedForeignExchangeLossInAccountsPayable" xlink:to="gfr_UnrealizedForeignExchangeLossInAccountsPayable_lbl0"/>  
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gfr_UnrealizedGainlossOnRiskManagementContracts_lbl0" xml:lang="en-US">The amount of unrealized gain loss on risk management contracts.</label>  
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_UnrealizedGainlossOnRiskManagementContracts" xlink:to="gfr_UnrealizedGainlossOnRiskManagementContracts_lbl0"/> 
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gfr_UnrealizedgainLossOnRiskManagementContracts_lbl0" xml:lang="en-US">Unrealized (gain) loss on risk management contracts.</label>     
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_UnrealizedgainLossOnRiskManagementContracts" xlink:to="gfr_UnrealizedgainLossOnRiskManagementContracts_lbl0"/> 
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gfr_UnsecuredCreditFacility_lbl0" xml:lang="en-US">Amount of unsecured credit facility.</label>    
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_UnsecuredCreditFacility" xlink:to="gfr_UnsecuredCreditFacility_lbl0"/> 
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gfr_WarrantsAndRightOutstandingTerm_lbl0" xml:lang="en-US">Period between issuance and expiration of outstanding warrant and right embodying unconditional obligation requiring redemption by transferring asset at specified or determinable date or upon event certain to occur, in &apos;PnYnMnDTnHnMnS&apos; format, for example, &apos;P1Y5M13D&apos; represents reported fact of one year, five months, and thirteen days.</label>   
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_WarrantsAndRightOutstandingTerm" xlink:to="gfr_WarrantsAndRightOutstandingTerm_lbl0"/>  
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gfr_WarrantsFixedInterestRate_lbl0" xml:lang="en-US">Fixed interest rate on senior secured notes.</label>    
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_WarrantsFixedInterestRate" xlink:to="gfr_WarrantsFixedInterestRate_lbl0"/>     
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gfr_WarrantsIssued_lbl0" xml:lang="en-US">Warrants issued.</label>     
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_WarrantsIssued" xlink:to="gfr_WarrantsIssued_lbl0"/>   
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gfr_WarrantyLiabilitiesTextBlock_lbl0" xml:lang="en-US">The disclosure of warrant liabilities.</label> 
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_WarrantyLiabilitiesTextBlock" xlink:to="gfr_WarrantyLiabilitiesTextBlock_lbl0"/> 
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gfr_WithholdingTaxesOnShareUnits_lbl0" xml:lang="en-US">Withholding taxes on share units.</label> 
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_WithholdingTaxesOnShareUnits" xlink:to="gfr_WithholdingTaxesOnShareUnits_lbl0"/> 
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gfr_WorkingInterestPercentage_lbl0" xml:lang="en-US">Working interest percentage.</label>   
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_WorkingInterestPercentage" xlink:to="gfr_WorkingInterestPercentage_lbl0"/>     
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gfr_OilSalesMember_lbl1" xml:lang="en-US">Sales of blended bitumen and non-diluted bitumen.</label>   
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_OilSalesMember" xlink:to="gfr_OilSalesMember_lbl1"/>   
    <loc xlink:type="locator" xlink:label="dei_AddressTypeDomain" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_AddressTypeDomain"/> 
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="dei_AddressTypeDomain_lbl" xml:lang="en-US">Address Type [Domain]</label>    
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="dei_AddressTypeDomain" xlink:to="dei_AddressTypeDomain_lbl"/>   
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_DescriptionOfAccountingPolicyForMeasuringInventories_lbl0" xml:lang="en-US">Description of accounting policy for measuring inventories [text block]</label> 
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_DescriptionOfAccountingPolicyForMeasuringInventories" xlink:to="ifrs-full_DescriptionOfAccountingPolicyForMeasuringInventories_lbl0"/> 
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_SharePremium_lbl0" xml:lang="en-US">Share premium</label>   
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_SharePremium" xlink:to="ifrs-full_SharePremium_lbl0"/> 
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_AdditionsOtherThanThroughBusinessCombinationsPropertyPlantAndEquipment_lbl0" xml:lang="en-US">Additions other than through business combinations, property, plant and equipment</label>    
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_AdditionsOtherThanThroughBusinessCombinationsPropertyPlantAndEquipment" xlink:to="ifrs-full_AdditionsOtherThanThroughBusinessCombinationsPropertyPlantAndEquipment_lbl0"/>  
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gfr_FederalIncomeTaxLossesCarriedForwardMember_lbl0" xml:lang="en-US">Federal Income Tax Losses Carried Forward Member</label>  
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_FederalIncomeTaxLossesCarriedForwardMember" xlink:to="gfr_FederalIncomeTaxLossesCarriedForwardMember_lbl0"/>    
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_BasicEarningsLossPerShare_lbl1" xml:lang="en-US">Basic earnings (loss) per share</label>    
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_BasicEarningsLossPerShare" xlink:to="ifrs-full_BasicEarningsLossPerShare_lbl1"/>  
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_CurrentContractLiabilities_lbl0" xml:lang="en-US">Current contract liabilities</label>  
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_CurrentContractLiabilities" xlink:to="ifrs-full_CurrentContractLiabilities_lbl0"/>    
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gfr_PercentageOfVoluntarilyRedeemedPrincipalAmount_lbl1" xml:lang="en-US">Percentage Of Voluntarily Redeemed Principal Amount</label>    
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_PercentageOfVoluntarilyRedeemedPrincipalAmount" xlink:to="gfr_PercentageOfVoluntarilyRedeemedPrincipalAmount_lbl1"/>  
    <loc xlink:type="locator" xlink:label="gfr_ScheduleOfConsolidatedBalanceSheetsAndTheCorrespondingHierarchyRatingForTheirDerivedFairValueEstimatesAbstract" xlink:href="gfr-20251231.xsd#gfr_ScheduleOfConsolidatedBalanceSheetsAndTheCorrespondingHierarchyRatingForTheirDerivedFairValueEstimatesAbstract"/> 
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gfr_ScheduleOfConsolidatedBalanceSheetsAndTheCorrespondingHierarchyRatingForTheirDerivedFairValueEstimatesAbstract_lbl" xml:lang="en-US">Schedule Of Consolidated Balance Sheets And The Corresponding Hierarchy Rating For Their Derived Fair Value Estimates Abstract</label>  
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_ScheduleOfConsolidatedBalanceSheetsAndTheCorrespondingHierarchyRatingForTheirDerivedFairValueEstimatesAbstract" xlink:to="gfr_ScheduleOfConsolidatedBalanceSheetsAndTheCorrespondingHierarchyRatingForTheirDerivedFairValueEstimatesAbstract_lbl"/>    
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gfr_WithholdingTaxesOnShareUnits_lbl1" xml:lang="en-US">Withholding Taxes On Share Units</label>  
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_WithholdingTaxesOnShareUnits" xlink:to="gfr_WithholdingTaxesOnShareUnits_lbl1"/> 
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gfr_DecommissioningLiabilitiesIncurred_lbl1" xml:lang="en-US">Decommissioning Liabilities Incurred</label>  
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_DecommissioningLiabilitiesIncurred" xlink:to="gfr_DecommissioningLiabilitiesIncurred_lbl1"/>   
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gfr_ChangeInUnrecognizedDeferredTaxAsset_lbl1" xml:lang="en-US">Change In Unrecognized Deferred Tax Asset</label>    
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_ChangeInUnrecognizedDeferredTaxAsset" xlink:to="gfr_ChangeInUnrecognizedDeferredTaxAsset_lbl1"/>  
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_InterestExpenseOnLeaseLiabilities_lbl1" xml:lang="en-US">Interest expense on lease liabilities</label>   
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_InterestExpenseOnLeaseLiabilities" xlink:to="ifrs-full_InterestExpenseOnLeaseLiabilities_lbl1"/>   
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_RetainedEarningsMember_lbl0" xml:lang="en-US">Retained earnings [member]</label> 
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_RetainedEarningsMember" xlink:to="ifrs-full_RetainedEarningsMember_lbl0"/> 
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gfr_IncreaseDecreaseThroughIssuanceOfSharesOnExerciseOfShareUnits_lbl1" xml:lang="en-US">Increase Decrease Through Issuance Of Shares On Exercise Of Share Units</label>    
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_IncreaseDecreaseThroughIssuanceOfSharesOnExerciseOfShareUnits" xlink:to="gfr_IncreaseDecreaseThroughIssuanceOfSharesOnExerciseOfShareUnits_lbl1"/>  
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_CurrentAssets_lbl0" xml:lang="en-US">Current assets</label>     
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_CurrentAssets" xlink:to="ifrs-full_CurrentAssets_lbl0"/>   
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_DisclosureOfExpensesExplanatory_lbl0" xml:lang="en-US">Disclosure of expenses [text block]</label>    
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_DisclosureOfExpensesExplanatory" xlink:to="ifrs-full_DisclosureOfExpensesExplanatory_lbl0"/>    
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gfr_DescriptionOfAccountingPoliciesForPrinciplesOfConsolidationTextBlock_lbl1" xml:lang="en-US">Description Of Accounting Policies For Principles Of Consolidation Text Block</label>  
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_DescriptionOfAccountingPoliciesForPrinciplesOfConsolidationTextBlock" xlink:to="gfr_DescriptionOfAccountingPoliciesForPrinciplesOfConsolidationTextBlock_lbl1"/> 
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gfr_NoncashWorkingCapital_lbl1" xml:lang="en-US">Noncash Working Capital</label> 
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_NoncashWorkingCapital" xlink:to="gfr_NoncashWorkingCapital_lbl1"/>  
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_AcquisitionsThroughBusinessCombinationsPropertyPlantAndEquipmentIncludingRightofuseAssets_lbl0" xml:lang="en-US">Acquisitions through business combinations, property, plant and equipment including right-of-use assets</label>     
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_AcquisitionsThroughBusinessCombinationsPropertyPlantAndEquipmentIncludingRightofuseAssets" xlink:to="ifrs-full_AcquisitionsThroughBusinessCombinationsPropertyPlantAndEquipmentIncludingRightofuseAssets_lbl0"/>     
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_IncomeTaxesPaidClassifiedAsOperatingActivities_lbl0" xml:lang="en-US">Income taxes paid, classified as operating activities</label>  
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_IncomeTaxesPaidClassifiedAsOperatingActivities" xlink:to="ifrs-full_IncomeTaxesPaidClassifiedAsOperatingActivities_lbl0"/>    
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gfr_ShareIssuanceCostsRelatedToNetOfTax_lbl2" xml:lang="en-US">Share Issuance Costs Related To Net Of Tax</label>    
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_ShareIssuanceCostsRelatedToNetOfTax" xlink:to="gfr_ShareIssuanceCostsRelatedToNetOfTax_lbl2"/>     
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gfr_OperatingFacilities_lbl1" xml:lang="en-US">Operating Facilities</label> 
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_OperatingFacilities" xlink:to="gfr_OperatingFacilities_lbl1"/>   
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_PropertyPlantAndEquipmentExpendituresRecognisedForConstructions_lbl0" xml:lang="en-US">Property, plant and equipment, expenditures recognised in course of its construction</label>     
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_PropertyPlantAndEquipmentExpendituresRecognisedForConstructions" xlink:to="ifrs-full_PropertyPlantAndEquipmentExpendituresRecognisedForConstructions_lbl0"/>   
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gfr_CorporateCapitalTaxLossesCarriedForward_lbl1" xml:lang="en-US">Corporate Capital Tax Losses Carried Forward</label>     
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_CorporateCapitalTaxLossesCarriedForward" xlink:to="gfr_CorporateCapitalTaxLossesCarriedForward_lbl1"/>   
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_DisclosureOfIncomeTaxExplanatory_lbl0" xml:lang="en-US">Disclosure of income tax [text block]</label>  
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_DisclosureOfIncomeTaxExplanatory" xlink:to="ifrs-full_DisclosureOfIncomeTaxExplanatory_lbl0"/> 
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_AccrualsClassifiedAsCurrent_lbl0" xml:lang="en-US">Accruals classified as current</label>     
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_AccrualsClassifiedAsCurrent" xlink:to="ifrs-full_AccrualsClassifiedAsCurrent_lbl0"/> 
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gfr_DisclosureOfAccountsPayableAndAccruedLiabilities_lbl1" xml:lang="en-US">Disclosure Of Accounts Payable And Accrued Liabilities</label>    
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_DisclosureOfAccountsPayableAndAccruedLiabilities" xlink:to="gfr_DisclosureOfAccountsPayableAndAccruedLiabilities_lbl1"/> 
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="dei_LocalPhoneNumber_lbl0" xml:lang="en-US">Local Phone Number</label> 
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="dei_LocalPhoneNumber" xlink:to="dei_LocalPhoneNumber_lbl0"/>  
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gfr_GainlossOnRiskManagementContracts_lbl1" xml:lang="en-US">Gainloss On Risk Management Contracts</label>  
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_GainlossOnRiskManagementContracts" xlink:to="gfr_GainlossOnRiskManagementContracts_lbl1"/> 
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gfr_UnitedStatesDollarAndVolumesInBarrelsMember_lbl0" xml:lang="en-US">United States Dollar And Volumes In Barrels Member</label>     
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_UnitedStatesDollarAndVolumesInBarrelsMember" xlink:to="gfr_UnitedStatesDollarAndVolumesInBarrelsMember_lbl0"/> 
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="dei_AuditorName_lbl0" xml:lang="en-US">Auditor Name</label>     
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="dei_AuditorName" xlink:to="dei_AuditorName_lbl0"/>  
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gfr_FinancingAndInterest_lbl1" xml:lang="en-US">Financing And Interest</label>    
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_FinancingAndInterest" xlink:to="gfr_FinancingAndInterest_lbl1"/>     
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_RetainedEarnings_lbl0" xml:lang="en-US">Retained earnings</label> 
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_RetainedEarnings" xlink:to="ifrs-full_RetainedEarnings_lbl0"/>    
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_AdjustmentsForDepreciationExpense_lbl0" xml:lang="en-US">Adjustments for depreciation expense</label>  
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_AdjustmentsForDepreciationExpense" xlink:to="ifrs-full_AdjustmentsForDepreciationExpense_lbl0"/>   
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gfr_LongtermDebtForeignCurrencyExchangeRateTranslation_lbl1" xml:lang="en-US">Longterm Debt Foreign Currency Exchange Rate Translation</label>   
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_LongtermDebtForeignCurrencyExchangeRateTranslation" xlink:to="gfr_LongtermDebtForeignCurrencyExchangeRateTranslation_lbl1"/>     
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gfr_DisclosureOfFairValueOfEachWarrantWasEstimatedOnItsGrantDateUsingTheBlackScholesMertonValuationModelTextBlock_lbl1" xml:lang="en-US">Disclosure Of Fair Value Of Each Warrant Was Estimated On Its Grant Date Using The Black Scholes Merton Valuation Model Text Block</label> 
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_DisclosureOfFairValueOfEachWarrantWasEstimatedOnItsGrantDateUsingTheBlackScholesMertonValuationModelTextBlock" xlink:to="gfr_DisclosureOfFairValueOfEachWarrantWasEstimatedOnItsGrantDateUsingTheBlackScholesMertonValuationModelTextBlock_lbl1"/>   
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gfr_UnrealizedForeignExchangeLossInAccountsPayable_lbl1" xml:lang="en-US">Unrealized Foreign Exchange Loss In Accounts Payable</label>     
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_UnrealizedForeignExchangeLossInAccountsPayable" xlink:to="gfr_UnrealizedForeignExchangeLossInAccountsPayable_lbl1"/>  
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="dei_DocumentRegistrationStatement_lbl0" xml:lang="en-US">Document Registration Statement</label>  
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="dei_DocumentRegistrationStatement" xlink:to="dei_DocumentRegistrationStatement_lbl0"/>   
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_TopOfRangeMember_lbl0" xml:lang="en-US">Top of range [member]</label>     
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_TopOfRangeMember" xlink:to="ifrs-full_TopOfRangeMember_lbl0"/>    
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gfr_AmortizationOfDebtIssuanceCostsAndRedemptionPremium_lbl1" xml:lang="en-US">Amortization Of Debt Issuance Costs And Redemption Premium</label> 
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_AmortizationOfDebtIssuanceCostsAndRedemptionPremium" xlink:to="gfr_AmortizationOfDebtIssuanceCostsAndRedemptionPremium_lbl1"/>  
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gfr_HangingstonMember_lbl0" xml:lang="en-US">Hangingston Member</label>  
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_HangingstonMember" xlink:to="gfr_HangingstonMember_lbl0"/>    
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="dei_Security12bTitle_lbl0" xml:lang="en-US">Title of 12(b) Security</label> 
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="dei_Security12bTitle" xlink:to="dei_Security12bTitle_lbl0"/>  
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_DescriptionOfAccountingPolicyForForeignCurrencyTranslationExplanatory_lbl0" xml:lang="en-US">Description of accounting policy for foreign currency translation [text block]</label>     
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_DescriptionOfAccountingPolicyForForeignCurrencyTranslationExplanatory" xlink:to="ifrs-full_DescriptionOfAccountingPolicyForForeignCurrencyTranslationExplanatory_lbl0"/>     
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gfr_M3BrigadeSponsorIIILPMember_lbl0" xml:lang="en-US">M3 Brigade Sponsor IIILPMember</label>    
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_M3BrigadeSponsorIIILPMember" xlink:to="gfr_M3BrigadeSponsorIIILPMember_lbl0"/>    
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gfr_PerformanceWarrantsPWsMember_lbl0" xml:lang="en-US">Performance Warrants PWs Member</label> 
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_PerformanceWarrantsPWsMember" xlink:to="gfr_PerformanceWarrantsPWsMember_lbl0"/> 
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gfr_RightsOfferingMember_lbl0" xml:lang="en-US">Rights Offering Member</label>    
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_RightsOfferingMember" xlink:to="gfr_RightsOfferingMember_lbl0"/>     
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gfr_GainOnWarrantRevaluation_lbl1" xml:lang="en-US">Gain On Warrant Revaluation</label>   
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_GainOnWarrantRevaluation" xlink:to="gfr_GainOnWarrantRevaluation_lbl1"/>   
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gfr_SecondQuarterMember_lbl0" xml:lang="en-US">Second Quarter Member</label>  
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_SecondQuarterMember" xlink:to="gfr_SecondQuarterMember_lbl0"/>   
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gfr_RiskManagementContractsAssets_lbl1" xml:lang="en-US">Risk Management Contracts Assets</label>   
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_RiskManagementContractsAssets" xlink:to="gfr_RiskManagementContractsAssets_lbl1"/>   
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="dei_SecurityExchangeName_lbl0" xml:lang="en-US">Security Exchange Name</label>    
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="dei_SecurityExchangeName" xlink:to="dei_SecurityExchangeName_lbl0"/>     
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gfr_CorporateAssetsMember_lbl0" xml:lang="en-US">Corporate Assets Member</label> 
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_CorporateAssetsMember" xlink:to="gfr_CorporateAssetsMember_lbl0"/>  
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gfr_CreditAdjustedDiscountRatePercentage_lbl1" xml:lang="en-US">Credit Adjusted Discount Rate Percentage</label>   
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_CreditAdjustedDiscountRatePercentage" xlink:to="gfr_CreditAdjustedDiscountRatePercentage_lbl1"/>  
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_AdjustmentsForReconcileProfitLossAbstract_lbl0" xml:lang="en-US">Adjustments to reconcile profit (loss) [abstract]</label>   
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_AdjustmentsForReconcileProfitLossAbstract" xlink:to="ifrs-full_AdjustmentsForReconcileProfitLossAbstract_lbl0"/>    
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_DisclosureOfCommitmentsAndContingentLiabilitiesExplanatory_lbl0" xml:lang="en-US">Disclosure of commitments and contingent liabilities [text block]</label> 
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_DisclosureOfCommitmentsAndContingentLiabilitiesExplanatory" xlink:to="ifrs-full_DisclosureOfCommitmentsAndContingentLiabilitiesExplanatory_lbl0"/>   
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_IncomeTaxesRefundClassifiedAsOperatingActivities_lbl0" xml:lang="en-US">Income taxes refund, classified as operating activities</label> 
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_IncomeTaxesRefundClassifiedAsOperatingActivities" xlink:to="ifrs-full_IncomeTaxesRefundClassifiedAsOperatingActivities_lbl0"/>   
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gfr_WarrantyLiabilitiesTextBlock_lbl1" xml:lang="en-US">Warranty Liabilities Text Block</label> 
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_WarrantyLiabilitiesTextBlock" xlink:to="gfr_WarrantyLiabilitiesTextBlock_lbl1"/> 
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_IncreaseDecreaseInCashAndCashEquivalents_lbl0" xml:lang="en-US">Increase (decrease) in cash and cash equivalents after effect of exchange rate changes</label>    
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_IncreaseDecreaseInCashAndCashEquivalents" xlink:to="ifrs-full_IncreaseDecreaseInCashAndCashEquivalents_lbl0"/>  
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_LaterThanFourYearsAndNotLaterThanFiveYearsMember_lbl0" xml:lang="en-US">Later than four years and not later than five years [member]</label> 
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_LaterThanFourYearsAndNotLaterThanFiveYearsMember" xlink:to="ifrs-full_LaterThanFourYearsAndNotLaterThanFiveYearsMember_lbl0"/>   
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="srt_ScenarioForecastMember_lbl0" xml:lang="en-US">Forecast [Member]</label> 
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="srt_ScenarioForecastMember" xlink:to="srt_ScenarioForecastMember_lbl0"/>    
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="dei_EntityCommonStockSharesOutstanding_lbl0" xml:lang="en-US">Entity Common Stock, Shares Outstanding</label>     
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="dei_EntityCommonStockSharesOutstanding" xlink:to="dei_EntityCommonStockSharesOutstanding_lbl0"/>   
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gfr_RSUsMember_lbl0" xml:lang="en-US">RSUs Member</label>   
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_RSUsMember" xlink:to="gfr_RSUsMember_lbl0"/>     
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_OtherOperatingIncomeExpense_lbl0" xml:lang="en-US">Other operating income (expense)</label>  
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_OtherOperatingIncomeExpense" xlink:to="ifrs-full_OtherOperatingIncomeExpense_lbl0"/> 
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gfr_CurrentLegalFees_lbl1" xml:lang="en-US">Current Legal Fees</label> 
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_CurrentLegalFees" xlink:to="gfr_CurrentLegalFees_lbl1"/>  
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_OtherCashPaymentsToAcquireInterestsInJointVenturesClassifiedAsInvestingActivities_lbl0" xml:lang="en-US">Other cash payments to acquire interests in joint ventures, classified as investing activities</label>   
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_OtherCashPaymentsToAcquireInterestsInJointVenturesClassifiedAsInvestingActivities" xlink:to="ifrs-full_OtherCashPaymentsToAcquireInterestsInJointVenturesClassifiedAsInvestingActivities_lbl0"/>    
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_DescriptionOfExpectedVolatilityShareOptionsGranted_lbl1" xml:lang="en-US">Expected volatility, share options granted</label>     
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_DescriptionOfExpectedVolatilityShareOptionsGranted" xlink:to="ifrs-full_DescriptionOfExpectedVolatilityShareOptionsGranted_lbl1"/>  
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_NoncurrentAssetsAbstract_lbl0" xml:lang="en-US">Non-current assets [abstract]</label> 
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_NoncurrentAssetsAbstract" xlink:to="ifrs-full_NoncurrentAssetsAbstract_lbl0"/>     
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gfr_DisclosureOfReconsilationOfDecommissioningLiabilitiesTextBlock_lbl1" xml:lang="en-US">Disclosure Of Reconsilation Of Decommissioning Liabilities Text Block</label>   
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_DisclosureOfReconsilationOfDecommissioningLiabilitiesTextBlock" xlink:to="gfr_DisclosureOfReconsilationOfDecommissioningLiabilitiesTextBlock_lbl1"/>    
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gfr_NetChangeInNoncashWorkingCapital_lbl1" xml:lang="en-US">Net Change In Noncash Working Capital</label> 
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_NetChangeInNoncashWorkingCapital" xlink:to="gfr_NetChangeInNoncashWorkingCapital_lbl1"/>    
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gfr_NetBookValueAbstract_lbl0" xml:lang="en-US">Net Book Value Abstract</label>     
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_NetBookValueAbstract" xlink:to="gfr_NetBookValueAbstract_lbl0"/>     
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gfr_OilSalesMember_lbl2" xml:lang="en-US">Oil Sales Member</label>  
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_OilSalesMember" xlink:to="gfr_OilSalesMember_lbl2"/>   
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gfr_DisclosureOfFinancingAndInterestTextBlock_lbl1" xml:lang="en-US">Disclosure Of Financing And Interest Text Block</label>     
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_DisclosureOfFinancingAndInterestTextBlock" xlink:to="gfr_DisclosureOfFinancingAndInterestTextBlock_lbl1"/>  
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_GrossCarryingAmountMember_lbl0" xml:lang="en-US">Gross carrying amount [member]</label>   
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_GrossCarryingAmountMember" xlink:to="ifrs-full_GrossCarryingAmountMember_lbl0"/>  
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gfr_RestrictedShareUnitsRSUsMember_lbl0" xml:lang="en-US">Restricted Share Units RSUs Member</label> 
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_RestrictedShareUnitsRSUsMember" xlink:to="gfr_RestrictedShareUnitsRSUsMember_lbl0"/>     
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gfr_PrincipalAmountOfForeignCurrencyExchangeRateTranslation_lbl1" xml:lang="en-US">Principal Amount Of Foreign Currency Exchange Rate Translation</label>    
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_PrincipalAmountOfForeignCurrencyExchangeRateTranslation" xlink:to="gfr_PrincipalAmountOfForeignCurrencyExchangeRateTranslation_lbl1"/>     
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_WeightedAverageSharePriceShareOptionsGranted2019_lbl0" xml:lang="en-US">Weighted average share price, share options granted</label>  
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_WeightedAverageSharePriceShareOptionsGranted2019" xlink:to="ifrs-full_WeightedAverageSharePriceShareOptionsGranted2019_lbl0"/>   
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_IncreaseDecreaseThroughTransfersAndOtherChangesPropertyPlantAndEquipmentIncludingRightofuseAssets_lbl0" xml:lang="en-US">Increase (decrease) through transfers and other changes, property, plant and equipment including right-of-use assets</label> 
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_IncreaseDecreaseThroughTransfersAndOtherChangesPropertyPlantAndEquipmentIncludingRightofuseAssets" xlink:to="ifrs-full_IncreaseDecreaseThroughTransfersAndOtherChangesPropertyPlantAndEquipmentIncludingRightofuseAssets_lbl0"/> 
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_NumberOfSharesIssued_lbl2" xml:lang="en-US">Number of shares issued</label> 
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_NumberOfSharesIssued" xlink:to="ifrs-full_NumberOfSharesIssued_lbl2"/>  
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_AnalysisOfIncomeAndExpenseAbstract_lbl0" xml:lang="en-US">Analysis of income and expense [abstract]</label>   
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_AnalysisOfIncomeAndExpenseAbstract" xlink:to="ifrs-full_AnalysisOfIncomeAndExpenseAbstract_lbl0"/>     
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_CurrentWarrantLiability_lbl0" xml:lang="en-US">Current warrant liability</label> 
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_CurrentWarrantLiability" xlink:to="ifrs-full_CurrentWarrantLiability_lbl0"/>   
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gfr_RightOfUseAssetsLeaseModificationsAndTerminations_lbl1" xml:lang="en-US">Right Of Use Assets Lease Modifications And Terminations</label>  
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_RightOfUseAssetsLeaseModificationsAndTerminations" xlink:to="gfr_RightOfUseAssetsLeaseModificationsAndTerminations_lbl1"/>   
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_InventoriesTotal_lbl0" xml:lang="en-US">Inventories</label>     
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_InventoriesTotal" xlink:to="ifrs-full_InventoriesTotal_lbl0"/>    
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gfr_DisclosureOfIncomeTaxExpenseTextBlock_lbl1" xml:lang="en-US">Disclosure Of Income Tax Expense Text Block</label>  
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_DisclosureOfIncomeTaxExpenseTextBlock" xlink:to="gfr_DisclosureOfIncomeTaxExpenseTextBlock_lbl1"/>    
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gfr_TenPercentageChangeInCommodityPricesDecreaseMember_lbl0" xml:lang="en-US">Ten Percentage Change In Commodity Prices Decrease Member</label>    
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_TenPercentageChangeInCommodityPricesDecreaseMember" xlink:to="gfr_TenPercentageChangeInCommodityPricesDecreaseMember_lbl0"/>     
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_DescriptionOfAccountingPolicyForLeasesExplanatory_lbl0" xml:lang="en-US">Description of accounting policy for leases [text block]</label>   
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_DescriptionOfAccountingPolicyForLeasesExplanatory" xlink:to="ifrs-full_DescriptionOfAccountingPolicyForLeasesExplanatory_lbl0"/>     
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_DisclosureOfClassesOfShareCapitalExplanatory_lbl0" xml:lang="en-US">Disclosure of classes of share capital [text block]</label>   
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_DisclosureOfClassesOfShareCapitalExplanatory" xlink:to="ifrs-full_DisclosureOfClassesOfShareCapitalExplanatory_lbl0"/>     
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_GrossLeaseLiabilities_lbl0" xml:lang="en-US">Gross lease liabilities</label>  
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_GrossLeaseLiabilities" xlink:to="ifrs-full_GrossLeaseLiabilities_lbl0"/>    
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_DepreciationAndAmortisationExpense_lbl0" xml:lang="en-US">Depreciation and amortisation expense</label>    
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_DepreciationAndAmortisationExpense" xlink:to="ifrs-full_DepreciationAndAmortisationExpense_lbl0"/>     
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_DisclosureOfFinanceIncomeExpenseExplanatory_lbl0" xml:lang="en-US">Disclosure of finance income (cost) [text block]</label>    
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_DisclosureOfFinanceIncomeExpenseExplanatory" xlink:to="ifrs-full_DisclosureOfFinanceIncomeExpenseExplanatory_lbl0"/>   
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_AtFairValueMember_lbl0" xml:lang="en-US">At fair value [member]</label>  
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_AtFairValueMember" xlink:to="ifrs-full_AtFairValueMember_lbl0"/> 
    <loc xlink:type="locator" xlink:label="gfr_ConsolidatedStatementsOfChangesInShareholdersEquityAbstract" xlink:href="gfr-20251231.xsd#gfr_ConsolidatedStatementsOfChangesInShareholdersEquityAbstract"/>    
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gfr_ConsolidatedStatementsOfChangesInShareholdersEquityAbstract_lbl" xml:lang="en-US">Consolidated Statements Of Changes In Shareholders Equity Abstract</label> 
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_ConsolidatedStatementsOfChangesInShareholdersEquityAbstract" xlink:to="gfr_ConsolidatedStatementsOfChangesInShareholdersEquityAbstract_lbl"/>  
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="dei_EntityAddressAddressLine2_lbl0" xml:lang="en-US">Entity Address, Address Line Two</label>    
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="dei_EntityAddressAddressLine2" xlink:to="dei_EntityAddressAddressLine2_lbl0"/>     
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_BottomOfRangeMember_lbl0" xml:lang="en-US">Bottom of range [member]</label> 
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_BottomOfRangeMember" xlink:to="ifrs-full_BottomOfRangeMember_lbl0"/>     
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gfr_NumberOfPerformanceWarrantsOutstanding_lbl1" xml:lang="en-US">Number Of Performance Warrants Outstanding</label>  
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_NumberOfPerformanceWarrantsOutstanding" xlink:to="gfr_NumberOfPerformanceWarrantsOutstanding_lbl1"/> 
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="dei_EntityAddressAddressLine1_lbl0" xml:lang="en-US">Entity Address, Address Line One</label>    
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="dei_EntityAddressAddressLine1" xlink:to="dei_EntityAddressAddressLine1_lbl0"/>     
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gfr_UnamortizedFinancingCostsOfForeignExchange_lbl1" xml:lang="en-US">Unamortized Financing Costs Of Foreign Exchange</label> 
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_UnamortizedFinancingCostsOfForeignExchange" xlink:to="gfr_UnamortizedFinancingCostsOfForeignExchange_lbl1"/>    
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gfr_TenPercentageChangeInCommodityPricesIncreaseMember_lbl0" xml:lang="en-US">Ten Percentage Change In Commodity Prices Increase Member</label>    
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_TenPercentageChangeInCommodityPricesIncreaseMember" xlink:to="gfr_TenPercentageChangeInCommodityPricesIncreaseMember_lbl0"/>     
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="dei_EntityIncorporationStateCountryCode_lbl0" xml:lang="en-US">Entity Incorporation, State or Country Code</label>     
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="dei_EntityIncorporationStateCountryCode" xlink:to="dei_EntityIncorporationStateCountryCode_lbl0"/>     
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_TaxRateEffectOfForeignTaxRates_lbl0" xml:lang="en-US">Tax rate effect of foreign tax rates</label>    
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_TaxRateEffectOfForeignTaxRates" xlink:to="ifrs-full_TaxRateEffectOfForeignTaxRates_lbl0"/>  
    <loc xlink:type="locator" xlink:label="gfr_ScheduleOfCommitmentsAbstract" xlink:href="gfr-20251231.xsd#gfr_ScheduleOfCommitmentsAbstract"/>    
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gfr_ScheduleOfCommitmentsAbstract_lbl" xml:lang="en-US">Schedule Of Commitments Abstract</label>  
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_ScheduleOfCommitmentsAbstract" xlink:to="gfr_ScheduleOfCommitmentsAbstract_lbl"/>  
    <loc xlink:type="locator" xlink:label="gfr_ScheduleOfMinimumLeasePaymentsAbstract" xlink:href="gfr-20251231.xsd#gfr_ScheduleOfMinimumLeasePaymentsAbstract"/>  
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gfr_ScheduleOfMinimumLeasePaymentsAbstract_lbl" xml:lang="en-US">Schedule Of Minimum Lease Payments Abstract</label>  
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_ScheduleOfMinimumLeasePaymentsAbstract" xlink:to="gfr_ScheduleOfMinimumLeasePaymentsAbstract_lbl"/>     
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gfr_NumberOfOutstandingShareUnitsWereExercisable_lbl1" xml:lang="en-US">Number Of Outstanding Share Units Were Exercisable</label> 
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_NumberOfOutstandingShareUnitsWereExercisable" xlink:to="gfr_NumberOfOutstandingShareUnitsWereExercisable_lbl1"/>   
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gfr_PastTwoThousandThirtyMember_lbl0" xml:lang="en-US">Past Two Thousand Thirty Member</label>     
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_PastTwoThousandThirtyMember" xlink:to="gfr_PastTwoThousandThirtyMember_lbl0"/>    
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_NoncurrentLiabilitiesAbstract_lbl0" xml:lang="en-US">Non-current liabilities [abstract]</label> 
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_NoncurrentLiabilitiesAbstract" xlink:to="ifrs-full_NoncurrentLiabilitiesAbstract_lbl0"/>     
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gfr_JointInterestReceivables_lbl1" xml:lang="en-US">Joint Interest Receivables</label>  
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_JointInterestReceivables" xlink:to="gfr_JointInterestReceivables_lbl1"/>   
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gfr_MaturityDateOfSeniorCreditFacility_lbl1" xml:lang="en-US">Maturity Date Of Senior Credit Facility</label>     
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_MaturityDateOfSeniorCreditFacility" xlink:to="gfr_MaturityDateOfSeniorCreditFacility_lbl1"/>   
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gfr_DSUsMember_lbl0" xml:lang="en-US">DSUs Member</label>   
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_DSUsMember" xlink:to="gfr_DSUsMember_lbl0"/>     
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gfr_NumberOfReportableOperatingSegment_lbl1" xml:lang="en-US">Number Of Reportable Operating Segment</label>    
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_NumberOfReportableOperatingSegment" xlink:to="gfr_NumberOfReportableOperatingSegment_lbl1"/>   
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gfr_WaterousEnergyFundMember_lbl0" xml:lang="en-US">Waterous Energy Fund Member</label>   
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_WaterousEnergyFundMember" xlink:to="gfr_WaterousEnergyFundMember_lbl0"/>   
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_DisclosureOfNetDefinedBenefitLiabilityAssetExplanatory_lbl0" xml:lang="en-US">Disclosure of net defined benefit liability (asset) [text block]</label> 
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_DisclosureOfNetDefinedBenefitLiabilityAssetExplanatory" xlink:to="ifrs-full_DisclosureOfNetDefinedBenefitLiabilityAssetExplanatory_lbl0"/>     
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gfr_IssuedOnExerciseOfShareUnits_lbl1" xml:lang="en-US">Issued On Exercise Of Share Units</label>   
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_IssuedOnExerciseOfShareUnits" xlink:to="gfr_IssuedOnExerciseOfShareUnits_lbl1"/> 
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gfr_NumberOfStockIssuedToRelatedParty_lbl1" xml:lang="en-US">Number Of Stock Issued To Related Party</label>    
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_NumberOfStockIssuedToRelatedParty" xlink:to="gfr_NumberOfStockIssuedToRelatedParty_lbl1"/> 
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gfr_NonCashWorkingCapitalRelatedToInvestingActivitiesaccruedAdditionsPropertyPlantandEquipment_lbl1" xml:lang="en-US">Non Cash Working Capital Related To Investing Activitiesaccrued Additions Property Plantand Equipment</label>   
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_NonCashWorkingCapitalRelatedToInvestingActivitiesaccruedAdditionsPropertyPlantandEquipment" xlink:to="gfr_NonCashWorkingCapitalRelatedToInvestingActivitiesaccruedAdditionsPropertyPlantandEquipment_lbl1"/>     
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_DescriptionOfAccountingPolicyForRecognitionOfRevenue_lbl0" xml:lang="en-US">Description of accounting policy for recognition of revenue [text block]</label>  
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_DescriptionOfAccountingPolicyForRecognitionOfRevenue" xlink:to="ifrs-full_DescriptionOfAccountingPolicyForRecognitionOfRevenue_lbl0"/> 
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_CashFlowsFromUsedInFinancingActivitiesAbstract_lbl0" xml:lang="en-US">Cash flows from (used in) financing activities [abstract]</label> 
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_CashFlowsFromUsedInFinancingActivitiesAbstract" xlink:to="ifrs-full_CashFlowsFromUsedInFinancingActivitiesAbstract_lbl0"/>    
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_NoncurrentAssets_lbl0" xml:lang="en-US">Non-current assets</label>  
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_NoncurrentAssets" xlink:to="ifrs-full_NoncurrentAssets_lbl0"/>    
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="dei_ContactPersonnelName_lbl0" xml:lang="en-US">Contact Personnel Name</label>    
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="dei_ContactPersonnelName" xlink:to="dei_ContactPersonnelName_lbl0"/>     
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gfr_DescriptionOfAccountingPolicyForProvisionAndContingentLiabilitiesTextBlock_lbl1" xml:lang="en-US">Description Of Accounting Policy For Provision And Contingent Liabilities Text Block</label>     
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_DescriptionOfAccountingPolicyForProvisionAndContingentLiabilitiesTextBlock" xlink:to="gfr_DescriptionOfAccountingPolicyForProvisionAndContingentLiabilitiesTextBlock_lbl1"/>   
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gfr_DisclosureOfDecommissioningLiabilitiesTextBlock_lbl1" xml:lang="en-US">Disclosure Of Decommissioning Liabilities Text Block</label> 
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_DisclosureOfDecommissioningLiabilitiesTextBlock" xlink:to="gfr_DisclosureOfDecommissioningLiabilitiesTextBlock_lbl1"/>    
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_EarningsPerShareExplanatory_lbl0" xml:lang="en-US">Earnings per share [text block]</label> 
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_EarningsPerShareExplanatory" xlink:to="ifrs-full_EarningsPerShareExplanatory_lbl0"/> 
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_ForeignExchangeGain_lbl0" xml:lang="en-US">Foreign exchange gain</label>   
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_ForeignExchangeGain" xlink:to="ifrs-full_ForeignExchangeGain_lbl0"/>     
    <loc xlink:type="locator" xlink:label="gfr_ScheduleOfStockBasedCompensationExpenseAbstract" xlink:href="gfr-20251231.xsd#gfr_ScheduleOfStockBasedCompensationExpenseAbstract"/>     
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gfr_ScheduleOfStockBasedCompensationExpenseAbstract_lbl" xml:lang="en-US">Schedule Of Stock Based Compensation Expense Abstract</label> 
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_ScheduleOfStockBasedCompensationExpenseAbstract" xlink:to="gfr_ScheduleOfStockBasedCompensationExpenseAbstract_lbl"/>   
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_RepaymentsOfBorrowingsClassifiedAsFinancingActivities_lbl0" xml:lang="en-US">Repayments of borrowings, classified as financing activities</label> 
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_RepaymentsOfBorrowingsClassifiedAsFinancingActivities" xlink:to="ifrs-full_RepaymentsOfBorrowingsClassifiedAsFinancingActivities_lbl0"/>   
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gfr_TwoThousandTwentySixMember_lbl0" xml:lang="en-US">Two Thousand Twenty Six Member</label>   
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_TwoThousandTwentySixMember" xlink:to="gfr_TwoThousandTwentySixMember_lbl0"/>  
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gfr_FinancingAndInterestExpenses_lbl1" xml:lang="en-US">Financing And Interest Expenses</label> 
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_FinancingAndInterestExpenses" xlink:to="gfr_FinancingAndInterestExpenses_lbl1"/> 
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_LongtermBorrowings_lbl1" xml:lang="en-US">Non-current portion of non-current borrowings</label> 
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_LongtermBorrowings" xlink:to="ifrs-full_LongtermBorrowings_lbl1"/>   
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_OtherExpenseByFunction_lbl0" xml:lang="en-US">Other expense, by function</label> 
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_OtherExpenseByFunction" xlink:to="ifrs-full_OtherExpenseByFunction_lbl0"/> 
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gfr_CapitalExpendituresPrincipalOutstanding_lbl1" xml:lang="en-US">Capital Expenditures Principal Outstanding</label>   
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_CapitalExpendituresPrincipalOutstanding" xlink:to="gfr_CapitalExpendituresPrincipalOutstanding_lbl1"/>   
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_NumberOfShareOptionsExercisedInSharebasedPaymentArrangement_lbl0" xml:lang="en-US">Number of share options exercised in share-based payment arrangement</label>     
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_NumberOfShareOptionsExercisedInSharebasedPaymentArrangement" xlink:to="ifrs-full_NumberOfShareOptionsExercisedInSharebasedPaymentArrangement_lbl0"/>     
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gfr_CashAndCashEquivalentMember_lbl0" xml:lang="en-US">Cash And Cash Equivalent Member</label>     
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_CashAndCashEquivalentMember" xlink:to="gfr_CashAndCashEquivalentMember_lbl0"/>    
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gfr_CommodityRiskManagementContractVolume_lbl1" xml:lang="en-US">Commodity Risk Management Contract Volume</label>     
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_CommodityRiskManagementContractVolume" xlink:to="gfr_CommodityRiskManagementContractVolume_lbl1"/>    
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gfr_DecommissioningObligations_lbl1" xml:lang="en-US">Decommissioning Obligations</label>     
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_DecommissioningObligations" xlink:to="gfr_DecommissioningObligations_lbl1"/>  
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_DisclosureOfTransactionsBetweenRelatedPartiesExplanatory_lbl0" xml:lang="en-US">Disclosure of transactions between related parties [text block]</label>  
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_DisclosureOfTransactionsBetweenRelatedPartiesExplanatory" xlink:to="ifrs-full_DisclosureOfTransactionsBetweenRelatedPartiesExplanatory_lbl0"/>    
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gfr_GainOnBusinessCombination_lbl1" xml:lang="en-US">Gain On Business Combination</label>     
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_GainOnBusinessCombination" xlink:to="gfr_GainOnBusinessCombination_lbl1"/>     
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gfr_DeferredTaxAssetLiabilityRiskManagementContracts_lbl1" xml:lang="en-US">Deferred Tax Asset Liability Risk Management Contracts</label>    
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_DeferredTaxAssetLiabilityRiskManagementContracts" xlink:to="gfr_DeferredTaxAssetLiabilityRiskManagementContracts_lbl1"/> 
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_ProvisionForDecommissioningRestorationAndRehabilitationCostsMember_lbl0" xml:lang="en-US">Provision for decommissioning, restoration and rehabilitation costs [member]</label>     
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_ProvisionForDecommissioningRestorationAndRehabilitationCostsMember" xlink:to="ifrs-full_ProvisionForDecommissioningRestorationAndRehabilitationCostsMember_lbl0"/>    
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gfr_EmissionsCreditsHeldForUse_lbl1" xml:lang="en-US">Emissions Credits Held For Use</label>   
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_EmissionsCreditsHeldForUse" xlink:to="gfr_EmissionsCreditsHeldForUse_lbl1"/>  
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_CurrentRestrictedCashAndCashEquivalents_lbl0" xml:lang="en-US">Current restricted cash and cash equivalents</label> 
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_CurrentRestrictedCashAndCashEquivalents" xlink:to="ifrs-full_CurrentRestrictedCashAndCashEquivalents_lbl0"/>     
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_TransportationExpense_lbl0" xml:lang="en-US">Transportation expense</label> 
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_TransportationExpense" xlink:to="ifrs-full_TransportationExpense_lbl0"/>    
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gfr_LeaseContractTermAxis_lbl0" xml:lang="en-US">Lease Contract Term Axis</label>  
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_LeaseContractTermAxis" xlink:to="gfr_LeaseContractTermAxis_lbl0"/>  
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gfr_SyndicatedFacility_lbl1" xml:lang="en-US">Syndicated Facility</label>    
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_SyndicatedFacility" xlink:to="gfr_SyndicatedFacility_lbl1"/> 
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gfr_DisclosureOfMinimumHedgingRequirementsTableTextBlock_lbl1" xml:lang="en-US">Disclosure Of Minimum Hedging Requirements Table Text Block</label>   
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_DisclosureOfMinimumHedgingRequirementsTableTextBlock" xlink:to="gfr_DisclosureOfMinimumHedgingRequirementsTableTextBlock_lbl1"/>    
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gfr_CommodityRiskSwapPrice_lbl1" xml:lang="en-US">Commodity Risk Swap Price</label>    
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_CommodityRiskSwapPrice" xlink:to="gfr_CommodityRiskSwapPrice_lbl1"/>    
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gfr_RiskManagementContractLiabilityOffsetAmount_lbl1" xml:lang="en-US">Risk Management Contract Liability Offset Amount</label>   
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_RiskManagementContractLiabilityOffsetAmount" xlink:to="gfr_RiskManagementContractLiabilityOffsetAmount_lbl1"/> 
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gfr_StockbasedCompensation_lbl1" xml:lang="en-US">Stockbased Compensation</label>  
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_StockbasedCompensation" xlink:to="gfr_StockbasedCompensation_lbl1"/>    
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gfr_OtherPermanentDifferences_lbl1" xml:lang="en-US">Other Permanent Differences</label>    
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_OtherPermanentDifferences" xlink:to="gfr_OtherPermanentDifferences_lbl1"/>     
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_CurrentContractAssets_lbl0" xml:lang="en-US">Current contract assets</label>  
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_CurrentContractAssets" xlink:to="ifrs-full_CurrentContractAssets_lbl0"/>    
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gfr_FairValueOfCommodityRiskManagementContractsIncrease_lbl1" xml:lang="en-US">Fair Value Of Commodity Risk Management Contracts Increase</label> 
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_FairValueOfCommodityRiskManagementContractsIncrease" xlink:to="gfr_FairValueOfCommodityRiskManagementContractsIncrease_lbl1"/>  
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gfr_PercentageOfInterestReceivables_lbl1" xml:lang="en-US">Percentage Of Interest Receivables</label>  
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_PercentageOfInterestReceivables" xlink:to="gfr_PercentageOfInterestReceivables_lbl1"/>  
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_CashFlowsFromUsedInOperatingActivitiesAbstract_lbl0" xml:lang="en-US">Cash flows from (used in) operating activities [abstract]</label> 
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_CashFlowsFromUsedInOperatingActivitiesAbstract" xlink:to="ifrs-full_CashFlowsFromUsedInOperatingActivitiesAbstract_lbl0"/>    
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_DeferredTaxAssets_lbl1" xml:lang="en-US">Deferred tax assets</label>    
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_DeferredTaxAssets" xlink:to="ifrs-full_DeferredTaxAssets_lbl1"/> 
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gfr_DecommissioningCostsIncurred_lbl1" xml:lang="en-US">Decommissioning Costs Incurred</label>     
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_DecommissioningCostsIncurred" xlink:to="gfr_DecommissioningCostsIncurred_lbl1"/> 
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gfr_RiskManagementContractAssetGross_lbl1" xml:lang="en-US">Risk Management Contract Asset Gross</label>     
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_RiskManagementContractAssetGross" xlink:to="gfr_RiskManagementContractAssetGross_lbl1"/>    
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_AdjustmentsForGainsLossesOnChangeInFairValueOfDerivatives_lbl0" xml:lang="en-US">Adjustments for gains (losses) on change in fair value of derivatives</label>    
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_AdjustmentsForGainsLossesOnChangeInFairValueOfDerivatives" xlink:to="ifrs-full_AdjustmentsForGainsLossesOnChangeInFairValueOfDerivatives_lbl0"/> 
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gfr_DisclosureOfGrossAssetAndLiabilityPositionsOfTheCompanysIndividualRiskManagementContractTextBlock_lbl1" xml:lang="en-US">Disclosure Of Gross Asset And Liability Positions Of The Companys Individual Risk Management Contract Text Block</label> 
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_DisclosureOfGrossAssetAndLiabilityPositionsOfTheCompanysIndividualRiskManagementContractTextBlock" xlink:to="gfr_DisclosureOfGrossAssetAndLiabilityPositionsOfTheCompanysIndividualRiskManagementContractTextBlock_lbl1"/>    
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_DisclosureOfRevenueFromContractsWithCustomersExplanatory_lbl0" xml:lang="en-US">Disclosure of revenue from contracts with customers [text block]</label>   
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_DisclosureOfRevenueFromContractsWithCustomersExplanatory" xlink:to="ifrs-full_DisclosureOfRevenueFromContractsWithCustomersExplanatory_lbl0"/>    
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_LeaseCommitmentsForShorttermLeasesForWhichRecognitionExemptionHasBeenUsed_lbl0" xml:lang="en-US">Lease commitments for short-term leases for which recognition exemption has been used</label> 
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_LeaseCommitmentsForShorttermLeasesForWhichRecognitionExemptionHasBeenUsed" xlink:to="ifrs-full_LeaseCommitmentsForShorttermLeasesForWhichRecognitionExemptionHasBeenUsed_lbl0"/>   
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_KeyManagementPersonnelCompensationPostemploymentBenefits_lbl0" xml:lang="en-US">Key management personnel compensation, post-employment benefits</label>  
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_KeyManagementPersonnelCompensationPostemploymentBenefits" xlink:to="ifrs-full_KeyManagementPersonnelCompensationPostemploymentBenefits_lbl0"/>    
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_CategoriesOfFinancialLiabilitiesAbstract_lbl0" xml:lang="en-US">Categories of financial liabilities [abstract]</label>    
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_CategoriesOfFinancialLiabilitiesAbstract" xlink:to="ifrs-full_CategoriesOfFinancialLiabilitiesAbstract_lbl0"/>  
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gfr_PSUsMember_lbl0" xml:lang="en-US">PSUs Member</label>   
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_PSUsMember" xlink:to="gfr_PSUsMember_lbl0"/>     
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_CurrentLiabilitiesAbstract_lbl0" xml:lang="en-US">Current liabilities [abstract]</label>    
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_CurrentLiabilitiesAbstract" xlink:to="ifrs-full_CurrentLiabilitiesAbstract_lbl0"/>    
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_InventoriesAtNetRealisableValue_lbl0" xml:lang="en-US">Inventories, at net realisable value</label>     
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_InventoriesAtNetRealisableValue" xlink:to="ifrs-full_InventoriesAtNetRealisableValue_lbl0"/>    
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_NumberOfSharesOutstanding_lbl1" xml:lang="en-US">Number of shares outstanding</label> 
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_NumberOfSharesOutstanding" xlink:to="ifrs-full_NumberOfSharesOutstanding_lbl1"/>  
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gfr_DisclosureOfSummarizedChangesToTheCompanysCommonShareCapitalTableTextBlock_lbl1" xml:lang="en-US">Disclosure Of Summarized Changes To The Companys Common Share Capital Table Text Block</label>  
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_DisclosureOfSummarizedChangesToTheCompanysCommonShareCapitalTableTextBlock" xlink:to="gfr_DisclosureOfSummarizedChangesToTheCompanysCommonShareCapitalTableTextBlock_lbl1"/>   
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_LoansReceived_lbl0" xml:lang="en-US">Loans received</label>     
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_LoansReceived" xlink:to="ifrs-full_LoansReceived_lbl0"/>   
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="dei_AuditedAnnualFinancialStatements_lbl0" xml:lang="en-US">Audited Annual Financial Statements</label>    
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="dei_AuditedAnnualFinancialStatements" xlink:to="dei_AuditedAnnualFinancialStatements_lbl0"/>    
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gfr_OutstandingCommonSharesPercentage_lbl1" xml:lang="en-US">Outstanding Common Shares Percentage</label> 
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_OutstandingCommonSharesPercentage" xlink:to="gfr_OutstandingCommonSharesPercentage_lbl1"/> 
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gfr_TwoThousandTwentyEightMember_lbl0" xml:lang="en-US">Two Thousand Twenty Eight Member</label>  
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_TwoThousandTwentyEightMember" xlink:to="gfr_TwoThousandTwentyEightMember_lbl0"/> 
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gfr_WarrantsIssued_lbl1" xml:lang="en-US">Warrants Issued</label> 
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_WarrantsIssued" xlink:to="gfr_WarrantsIssued_lbl1"/>   
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_DisclosureOfTaxReceivablesAndPayablesExplanatory_lbl0" xml:lang="en-US">Disclosure of tax receivables and payables [text block]</label> 
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_DisclosureOfTaxReceivablesAndPayablesExplanatory" xlink:to="ifrs-full_DisclosureOfTaxReceivablesAndPayablesExplanatory_lbl0"/>   
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_GainsLossesOnExchangeDifferencesOnTranslationRecognisedInProfitOrLoss_lbl0" xml:lang="en-US">Foreign exchange gain (loss)</label>     
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_GainsLossesOnExchangeDifferencesOnTranslationRecognisedInProfitOrLoss" xlink:to="ifrs-full_GainsLossesOnExchangeDifferencesOnTranslationRecognisedInProfitOrLoss_lbl0"/>     
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_Borrowings_lbl1" xml:lang="en-US">Borrowings</label>   
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_Borrowings" xlink:to="ifrs-full_Borrowings_lbl1"/>  
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gfr_ChangeInDecommissioningLiabilities_lbl1" xml:lang="en-US">Change In Decommissioning Liabilities</label>   
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_ChangeInDecommissioningLiabilities" xlink:to="gfr_ChangeInDecommissioningLiabilities_lbl1"/>   
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gfr_CanadianDollarAndVolumesInGigajoulesMember_lbl0" xml:lang="en-US">Canadian Dollar And Volumes In Gigajoules Member</label>  
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_CanadianDollarAndVolumesInGigajoulesMember" xlink:to="gfr_CanadianDollarAndVolumesInGigajoulesMember_lbl0"/>    
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gfr_BlackScholesMertonValuationModelMember_lbl0" xml:lang="en-US">Black Scholes Merton Valuation Model Member</label>   
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_BlackScholesMertonValuationModelMember" xlink:to="gfr_BlackScholesMertonValuationModelMember_lbl0"/> 
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_DescriptionOfAccountingPolicyForSegmentReportingExplanatory_lbl0" xml:lang="en-US">Description of accounting policy for segment reporting [text block]</label>    
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_DescriptionOfAccountingPolicyForSegmentReportingExplanatory" xlink:to="ifrs-full_DescriptionOfAccountingPolicyForSegmentReportingExplanatory_lbl0"/>     
    <loc xlink:type="locator" xlink:label="gfr_ScheduleOfPropertyPlantAndEquipmentPpEAbstract" xlink:href="gfr-20251231.xsd#gfr_ScheduleOfPropertyPlantAndEquipmentPpEAbstract"/>   
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gfr_ScheduleOfPropertyPlantAndEquipmentPpEAbstract_lbl" xml:lang="en-US">Schedule Of Property Plant And Equipment Pp EAbstract</label>     
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_ScheduleOfPropertyPlantAndEquipmentPpEAbstract" xlink:to="gfr_ScheduleOfPropertyPlantAndEquipmentPpEAbstract_lbl"/> 
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_DisclosureOfRevenueExplanatory_lbl0" xml:lang="en-US">Disclosure of revenue [text block]</label>  
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_DisclosureOfRevenueExplanatory" xlink:to="ifrs-full_DisclosureOfRevenueExplanatory_lbl0"/>  
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="dei_CurrentFiscalYearEndDate_lbl0" xml:lang="en-US">Current Fiscal Year End Date</label>    
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="dei_CurrentFiscalYearEndDate" xlink:to="dei_CurrentFiscalYearEndDate_lbl0"/>   
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gfr_IssuedOnExerciseOfShareUnit_lbl1" xml:lang="en-US">Issued On Exercise Of Share Unit</label> 
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_IssuedOnExerciseOfShareUnit" xlink:to="gfr_IssuedOnExerciseOfShareUnit_lbl1"/>    
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_ShareIssueRelatedCost_lbl0" xml:lang="en-US">Share issue related cost</label>   
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_ShareIssueRelatedCost" xlink:to="ifrs-full_ShareIssueRelatedCost_lbl0"/>    
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_Inventories_lbl1" xml:lang="en-US">Current inventories</label>   
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_Inventories" xlink:to="ifrs-full_Inventories_lbl1"/>    
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gfr_UnamortizedFinancingCostsOfNoncashFinancingExpense_lbl1" xml:lang="en-US">Unamortized Financing Costs Of Noncash Financing Expense</label>   
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_UnamortizedFinancingCostsOfNoncashFinancingExpense" xlink:to="gfr_UnamortizedFinancingCostsOfNoncashFinancingExpense_lbl1"/>     
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_AverageEffectiveTaxRate_lbl0" xml:lang="en-US">Average effective tax rate</label>  
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_AverageEffectiveTaxRate" xlink:to="ifrs-full_AverageEffectiveTaxRate_lbl0"/>   
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_CurrentLeaseLiabilities_lbl1" xml:lang="en-US">Current lease liabilities</label> 
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_CurrentLeaseLiabilities" xlink:to="ifrs-full_CurrentLeaseLiabilities_lbl1"/>   
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gfr_DeferredTaxAssetLiabilityLongTermDebt_lbl1" xml:lang="en-US">Deferred Tax Asset Liability Long Term Debt</label>  
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_DeferredTaxAssetLiabilityLongTermDebt" xlink:to="gfr_DeferredTaxAssetLiabilityLongTermDebt_lbl1"/>    
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_CashFlowsFromUsedInInvestingActivities_lbl0" xml:lang="en-US">Cash flows from (used in) investing activities</label>  
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_CashFlowsFromUsedInInvestingActivities" xlink:to="ifrs-full_CashFlowsFromUsedInInvestingActivities_lbl0"/>   
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="dei_EntityAddressPostalZipCode_lbl0" xml:lang="en-US">Entity Address, Postal Zip Code</label>    
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="dei_EntityAddressPostalZipCode" xlink:to="dei_EntityAddressPostalZipCode_lbl0"/>  
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_DisclosureOfInventoriesExplanatory_lbl0" xml:lang="en-US">Disclosure of inventories [text block]</label>     
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_DisclosureOfInventoriesExplanatory" xlink:to="ifrs-full_DisclosureOfInventoriesExplanatory_lbl0"/>     
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gfr_RiskManagementContractsMember_lbl0" xml:lang="en-US">Risk Management Contracts Member</label>   
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_RiskManagementContractsMember" xlink:to="gfr_RiskManagementContractsMember_lbl0"/>   
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gfr_DecommissioningLiabilities_lbl3" xml:lang="en-US">Decommissioning Liabilities</label>     
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_DecommissioningLiabilities" xlink:to="gfr_DecommissioningLiabilities_lbl3"/>  
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gfr_NumberOfWarrantsShareOutstanding_lbl2" xml:lang="en-US">Number Of Warrants Share Outstanding</label>     
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_NumberOfWarrantsShareOutstanding" xlink:to="gfr_NumberOfWarrantsShareOutstanding_lbl2"/>    
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_WeightedAverageRemainingContractualLifeOfOutstandingShareOptions2019_lbl0" xml:lang="en-US">Weighted average remaining contractual life of outstanding share options</label>   
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_WeightedAverageRemainingContractualLifeOfOutstandingShareOptions2019" xlink:to="ifrs-full_WeightedAverageRemainingContractualLifeOfOutstandingShareOptions2019_lbl0"/>   
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gfr_PrincipalAmountPercentage_lbl1" xml:lang="en-US">Principal Amount Percentage</label>    
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_PrincipalAmountPercentage" xlink:to="gfr_PrincipalAmountPercentage_lbl1"/>     
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gfr_UnamortizedFinancingCostsOfRedemptionPayments_lbl1" xml:lang="en-US">Unamortized Financing Costs Of Redemption Payments</label>  
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_UnamortizedFinancingCostsOfRedemptionPayments" xlink:to="gfr_UnamortizedFinancingCostsOfRedemptionPayments_lbl1"/>     
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_AdjustmentsForFinanceCosts_lbl0" xml:lang="en-US">Adjustments for finance costs</label>   
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_AdjustmentsForFinanceCosts" xlink:to="ifrs-full_AdjustmentsForFinanceCosts_lbl0"/>    
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_LeaseLiabilities_lbl3" xml:lang="en-US">Lease liabilities</label> 
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_LeaseLiabilities" xlink:to="ifrs-full_LeaseLiabilities_lbl3"/>    
    <loc xlink:type="locator" xlink:label="gfr_ScheduleOfFairValueOfEachWarrantWasEstimatedUsingTheBlackScholesMertonModelAbstract" xlink:href="gfr-20251231.xsd#gfr_ScheduleOfFairValueOfEachWarrantWasEstimatedUsingTheBlackScholesMertonModelAbstract"/>  
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gfr_ScheduleOfFairValueOfEachWarrantWasEstimatedUsingTheBlackScholesMertonModelAbstract_lbl" xml:lang="en-US">Schedule Of Fair Value Of Each Warrant Was Estimated Using The Black Scholes Merton Model Abstract</label>  
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_ScheduleOfFairValueOfEachWarrantWasEstimatedUsingTheBlackScholesMertonModelAbstract" xlink:to="gfr_ScheduleOfFairValueOfEachWarrantWasEstimatedUsingTheBlackScholesMertonModelAbstract_lbl"/>     
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gfr_DecommissioningLiabilitiesChangeInEstimates_lbl1" xml:lang="en-US">Decommissioning Liabilities Change In Estimates</label>  
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_DecommissioningLiabilitiesChangeInEstimates" xlink:to="gfr_DecommissioningLiabilitiesChangeInEstimates_lbl1"/> 
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gfr_LeaseLiabilityAdditions_lbl1" xml:lang="en-US">Lease Liability Additions</label>     
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_LeaseLiabilityAdditions" xlink:to="gfr_LeaseLiabilityAdditions_lbl1"/> 
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_CurrentAssetsAbstract_lbl0" xml:lang="en-US">Current assets [abstract]</label>    
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_CurrentAssetsAbstract" xlink:to="ifrs-full_CurrentAssetsAbstract_lbl0"/>    
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gfr_FairMarketValueOfConsultingService_lbl1" xml:lang="en-US">Fair Market Value Of Consulting Service</label>     
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_FairMarketValueOfConsultingService" xlink:to="gfr_FairMarketValueOfConsultingService_lbl1"/>   
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gfr_LettersOfCreditOutstanding_lbl1" xml:lang="en-US">Letters Of Credit Outstanding</label>  
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_LettersOfCreditOutstanding" xlink:to="gfr_LettersOfCreditOutstanding_lbl1"/>  
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gfr_RiskManagementContracts_lbl2" xml:lang="en-US">Risk Management Contracts</label>     
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_RiskManagementContracts" xlink:to="gfr_RiskManagementContracts_lbl2"/> 
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_DisclosureOfMaterialAccountingPolicyInformationExplanatory_lbl0" xml:lang="en-US">Disclosure of material accounting policy information [text block]</label> 
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_DisclosureOfMaterialAccountingPolicyInformationExplanatory" xlink:to="ifrs-full_DisclosureOfMaterialAccountingPolicyInformationExplanatory_lbl0"/>   
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gfr_TwoThousandTwentyNineMember_lbl0" xml:lang="en-US">Two Thousand Twenty Nine Member</label>     
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_TwoThousandTwentyNineMember" xlink:to="gfr_TwoThousandTwentyNineMember_lbl0"/>    
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gfr_TwoThousandTwentySevenMember_lbl0" xml:lang="en-US">Two Thousand Twenty Seven Member</label>  
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_TwoThousandTwentySevenMember" xlink:to="gfr_TwoThousandTwentySevenMember_lbl0"/> 
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="dei_BusinessContactMember_lbl0" xml:lang="en-US">Business Contact [Member]</label>   
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="dei_BusinessContactMember" xlink:to="dei_BusinessContactMember_lbl0"/>  
    <loc xlink:type="locator" xlink:label="gfr_ScheduleOfNetIncomeBeforeTaxBasedOnTheFinancialRiskManagementContractsAbstract" xlink:href="gfr-20251231.xsd#gfr_ScheduleOfNetIncomeBeforeTaxBasedOnTheFinancialRiskManagementContractsAbstract"/>  
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gfr_ScheduleOfNetIncomeBeforeTaxBasedOnTheFinancialRiskManagementContractsAbstract_lbl" xml:lang="en-US">Schedule Of Net Income Before Tax Based On The Financial Risk Management Contracts Abstract</label>     
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_ScheduleOfNetIncomeBeforeTaxBasedOnTheFinancialRiskManagementContractsAbstract" xlink:to="gfr_ScheduleOfNetIncomeBeforeTaxBasedOnTheFinancialRiskManagementContractsAbstract_lbl"/>     
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gfr_LongtermDebtNoncashFinancingExpense_lbl1" xml:lang="en-US">Longterm Debt Noncash Financing Expense</label> 
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_LongtermDebtNoncashFinancingExpense" xlink:to="gfr_LongtermDebtNoncashFinancingExpense_lbl1"/>     
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gfr_DisclosureOfFinancialCommodityRiskManagementContractsTextBlock_lbl1" xml:lang="en-US">Disclosure Of Financial Commodity Risk Management Contracts Text Block</label>    
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_DisclosureOfFinancialCommodityRiskManagementContractsTextBlock" xlink:to="gfr_DisclosureOfFinancialCommodityRiskManagementContractsTextBlock_lbl1"/>    
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gfr_CanadianDollarAndVolumesInBarrelsMember_lbl0" xml:lang="en-US">Canadian Dollar And Volumes In Barrels Member</label> 
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_CanadianDollarAndVolumesInBarrelsMember" xlink:to="gfr_CanadianDollarAndVolumesInBarrelsMember_lbl0"/>   
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gfr_OtherCommitments_lbl1" xml:lang="en-US">Other Commitments</label>     
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_OtherCommitments" xlink:to="gfr_OtherCommitments_lbl1"/>  
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="dei_DocumentFiscalPeriodFocus_lbl0" xml:lang="en-US">Document Fiscal Period Focus</label>     
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="dei_DocumentFiscalPeriodFocus" xlink:to="dei_DocumentFiscalPeriodFocus_lbl0"/>     
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gfr_CreditFacility_lbl1" xml:lang="en-US">Credit Facility</label> 
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_CreditFacility" xlink:to="gfr_CreditFacility_lbl1"/>   
    <loc xlink:type="locator" xlink:label="ifrs-full_StatementOfFinancialPositionAbstract" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_StatementOfFinancialPositionAbstract"/>    
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_StatementOfFinancialPositionAbstract_lbl" xml:lang="en-US">Statement of financial position [abstract]</label>     
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_StatementOfFinancialPositionAbstract" xlink:to="ifrs-full_StatementOfFinancialPositionAbstract_lbl"/>   
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gfr_LongtermDebtMember_lbl0" xml:lang="en-US">Longterm Debt Member</label>     
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_LongtermDebtMember" xlink:to="gfr_LongtermDebtMember_lbl0"/> 
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_TradeAndOtherCurrentReceivables_lbl1" xml:lang="en-US">Trade and other current receivables</label>    
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_TradeAndOtherCurrentReceivables" xlink:to="ifrs-full_TradeAndOtherCurrentReceivables_lbl1"/>    
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gfr_AmountOfUnamortizedFinancingCosts_lbl2" xml:lang="en-US">Amount Of Unamortized Financing Costs</label>  
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_AmountOfUnamortizedFinancingCosts" xlink:to="gfr_AmountOfUnamortizedFinancingCosts_lbl2"/> 
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="dei_DocumentType_lbl0" xml:lang="en-US">Document Type</label>  
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="dei_DocumentType" xlink:to="dei_DocumentType_lbl0"/>    
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="dei_EntityFileNumber_lbl0" xml:lang="en-US">Entity File Number</label> 
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="dei_EntityFileNumber" xlink:to="dei_EntityFileNumber_lbl0"/>  
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gfr_OtherItemsImpactingChangesInNonCashWorkingCapitalAbstract_lbl0" xml:lang="en-US">Other Items Impacting Changes In Non Cash Working Capital Abstract</label>     
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_OtherItemsImpactingChangesInNonCashWorkingCapitalAbstract" xlink:to="gfr_OtherItemsImpactingChangesInNonCashWorkingCapitalAbstract_lbl0"/>    
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gfr_PrincipalAmountOfNoncashFinancingExpense_lbl1" xml:lang="en-US">Principal Amount Of Noncash Financing Expense</label>  
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_PrincipalAmountOfNoncashFinancingExpense" xlink:to="gfr_PrincipalAmountOfNoncashFinancingExpense_lbl1"/>     
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gfr_PerformanceShareUnitsPSUsMember_lbl1" xml:lang="en-US">Performance Share Units PSUs Member</label>   
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_PerformanceShareUnitsPSUsMember" xlink:to="gfr_PerformanceShareUnitsPSUsMember_lbl1"/>  
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gfr_PrincipalAmountOfRedemptionPayments_lbl1" xml:lang="en-US">Principal Amount Of Redemption Payments</label> 
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_PrincipalAmountOfRedemptionPayments" xlink:to="gfr_PrincipalAmountOfRedemptionPayments_lbl1"/>     
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="dei_DocumentPeriodEndDate_lbl0" xml:lang="en-US">Document Period End Date</label>  
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="dei_DocumentPeriodEndDate" xlink:to="dei_DocumentPeriodEndDate_lbl0"/>  
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_EquityAbstract_lbl0" xml:lang="en-US">Equity [abstract]</label>    
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_EquityAbstract" xlink:to="ifrs-full_EquityAbstract_lbl0"/>     
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gfr_ChangeInWorkingCapital_lbl1" xml:lang="en-US">Change In Working Capital</label>    
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_ChangeInWorkingCapital" xlink:to="gfr_ChangeInWorkingCapital_lbl1"/>    
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_DescriptionOfAccountingPolicyForEarningsPerShareExplanatory_lbl0" xml:lang="en-US">Description of accounting policy for earnings per share [text block]</label>     
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_DescriptionOfAccountingPolicyForEarningsPerShareExplanatory" xlink:to="ifrs-full_DescriptionOfAccountingPolicyForEarningsPerShareExplanatory_lbl0"/>     
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gfr_CapitalGainOnDebtSettlementinDollars_lbl1" xml:lang="en-US">Capital Gain On Debt Settlementin Dollars</label>    
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_CapitalGainOnDebtSettlementinDollars" xlink:to="gfr_CapitalGainOnDebtSettlementinDollars_lbl1"/>  
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="dei_EntityInteractiveDataCurrent_lbl0" xml:lang="en-US">Entity Interactive Data Current</label> 
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="dei_EntityInteractiveDataCurrent" xlink:to="dei_EntityInteractiveDataCurrent_lbl0"/> 
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_DisclosureOfPropertyPlantAndEquipmentExplanatory_lbl0" xml:lang="en-US">Disclosure of property, plant and equipment [text block]</label>  
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_DisclosureOfPropertyPlantAndEquipmentExplanatory" xlink:to="ifrs-full_DisclosureOfPropertyPlantAndEquipmentExplanatory_lbl0"/>   
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_CurrentPrepaidExpenses_lbl0" xml:lang="en-US">Current prepaid expenses</label>    
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_CurrentPrepaidExpenses" xlink:to="ifrs-full_CurrentPrepaidExpenses_lbl0"/> 
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_CurrentRawMaterialsAndCurrentProductionSupplies_lbl0" xml:lang="en-US">Current raw materials and current production supplies</label>   
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_CurrentRawMaterialsAndCurrentProductionSupplies" xlink:to="ifrs-full_CurrentRawMaterialsAndCurrentProductionSupplies_lbl0"/> 
    <loc xlink:type="locator" xlink:label="gfr_ScheduleOfShareUnitsIssuedAndOutstandingAbstract" xlink:href="gfr-20251231.xsd#gfr_ScheduleOfShareUnitsIssuedAndOutstandingAbstract"/>  
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gfr_ScheduleOfShareUnitsIssuedAndOutstandingAbstract_lbl" xml:lang="en-US">Schedule Of Share Units Issued And Outstanding Abstract</label>    
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_ScheduleOfShareUnitsIssuedAndOutstandingAbstract" xlink:to="gfr_ScheduleOfShareUnitsIssuedAndOutstandingAbstract_lbl"/>     
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_AdjustmentsForIncomeTaxExpense_lbl0" xml:lang="en-US">Adjustments for income tax expense</label>  
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_AdjustmentsForIncomeTaxExpense" xlink:to="ifrs-full_AdjustmentsForIncomeTaxExpense_lbl0"/>  
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gfr_IncreaseDecreaseThroughIssuanceAndExerciseOfBondWarrants_lbl1" xml:lang="en-US">Increase Decrease Through Issuance And Exercise Of Bond Warrants</label>  
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_IncreaseDecreaseThroughIssuanceAndExerciseOfBondWarrants" xlink:to="gfr_IncreaseDecreaseThroughIssuanceAndExerciseOfBondWarrants_lbl1"/>  
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_DilutiveEffectOfOtherInstrumentsOnWeightedAverageNumberOfOrdinaryShares_lbl0" xml:lang="en-US">Dilutive effect of other instruments on weighted average number of ordinary shares</label> 
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_DilutiveEffectOfOtherInstrumentsOnWeightedAverageNumberOfOrdinaryShares" xlink:to="ifrs-full_DilutiveEffectOfOtherInstrumentsOnWeightedAverageNumberOfOrdinaryShares_lbl0"/>    
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_LiabilitiesAbstract_lbl0" xml:lang="en-US">Liabilities [abstract]</label>    
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_LiabilitiesAbstract" xlink:to="ifrs-full_LiabilitiesAbstract_lbl0"/>     
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="srt_ScheduleOfCondensedBalanceSheetTableTextBlock_lbl0" xml:lang="en-US">Condensed Balance Sheet [Table Text Block]</label>    
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="srt_ScheduleOfCondensedBalanceSheetTableTextBlock" xlink:to="srt_ScheduleOfCondensedBalanceSheetTableTextBlock_lbl0"/>     
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gfr_DeferredTaxAssetsShareIssuanceCosts_lbl1" xml:lang="en-US">Deferred Tax Assets Share Issuance Costs</label>  
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_DeferredTaxAssetsShareIssuanceCosts" xlink:to="gfr_DeferredTaxAssetsShareIssuanceCosts_lbl1"/>     
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_OrdinarySharesMember_lbl1" xml:lang="en-US">Ordinary shares [member]</label>  
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_OrdinarySharesMember" xlink:to="ifrs-full_OrdinarySharesMember_lbl1"/>  
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="dei_TradingSymbol_lbl0" xml:lang="en-US">Trading Symbol</label>    
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="dei_TradingSymbol" xlink:to="dei_TradingSymbol_lbl0"/> 
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gfr_ChangeInFairValue_lbl1" xml:lang="en-US">Change In Fair Value</label>    
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_ChangeInFairValue" xlink:to="gfr_ChangeInFairValue_lbl1"/>    
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gfr_RealizedLossOnRiskManagementContracts_lbl1" xml:lang="en-US">Realized Loss On Risk Management Contracts</label> 
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_RealizedLossOnRiskManagementContracts" xlink:to="gfr_RealizedLossOnRiskManagementContracts_lbl1"/>    
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gfr_DeferredShareUnitsDSUsMember_lbl0" xml:lang="en-US">Deferred Share Units DSUs Member</label>  
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_DeferredShareUnitsDSUsMember" xlink:to="gfr_DeferredShareUnitsDSUsMember_lbl0"/> 
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_DescriptionOfAccountingPolicyForEmissionRightsExplanatory_lbl0" xml:lang="en-US">Description of accounting policy for emission rights [text block]</label>     
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_DescriptionOfAccountingPolicyForEmissionRightsExplanatory" xlink:to="ifrs-full_DescriptionOfAccountingPolicyForEmissionRightsExplanatory_lbl0"/> 
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_CashFlowsFromUsedInOperatingActivities_lbl0" xml:lang="en-US">Cash flows from (used in) operating activities</label>  
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_CashFlowsFromUsedInOperatingActivities" xlink:to="ifrs-full_CashFlowsFromUsedInOperatingActivities_lbl0"/>   
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gfr_FirstQuaterMember_lbl0" xml:lang="en-US">First Quater Member</label>   
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_FirstQuaterMember" xlink:to="gfr_FirstQuaterMember_lbl0"/>    
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_ExplanationOfEffectOfSharebasedPaymentsOnProfitOrLoss_lbl0" xml:lang="en-US">Explanation of effect of share-based payments on entity&apos;s profit or loss [text block]</label> 
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_ExplanationOfEffectOfSharebasedPaymentsOnProfitOrLoss" xlink:to="ifrs-full_ExplanationOfEffectOfSharebasedPaymentsOnProfitOrLoss_lbl0"/>   
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gfr_DeferredIncomeTaxExpensePropertyPlantampEquipment_lbl1" xml:lang="en-US">Deferred Income Tax Expense Property Plantamp Equipment</label> 
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_DeferredIncomeTaxExpensePropertyPlantampEquipment" xlink:to="gfr_DeferredIncomeTaxExpensePropertyPlantampEquipment_lbl1"/>   
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gfr_DilutedBitumenSalesMember_lbl0" xml:lang="en-US">Diluted Bitumen Sales Member</label>     
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_DilutedBitumenSalesMember" xlink:to="gfr_DilutedBitumenSalesMember_lbl0"/>     
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gfr_DisclosureOfLeaseLiabilitiesExplanatoryTableTextBlock_lbl1" xml:lang="en-US">Disclosure Of Lease Liabilities Explanatory Table Text Block</label>     
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_DisclosureOfLeaseLiabilitiesExplanatoryTableTextBlock" xlink:to="gfr_DisclosureOfLeaseLiabilitiesExplanatoryTableTextBlock_lbl1"/> 
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="dei_CityAreaCode_lbl0" xml:lang="en-US">City Area Code</label>   
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="dei_CityAreaCode" xlink:to="dei_CityAreaCode_lbl0"/>    
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_DeferredTaxLiabilityAsset_lbl0" xml:lang="en-US">Deferred tax liability (asset)</label>   
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_DeferredTaxLiabilityAsset" xlink:to="ifrs-full_DeferredTaxLiabilityAsset_lbl0"/>  
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_ExercisePriceShareOptionsGranted2019_lbl0" xml:lang="en-US">Exercise price, share options granted</label> 
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_ExercisePriceShareOptionsGranted2019" xlink:to="ifrs-full_ExercisePriceShareOptionsGranted2019_lbl0"/>    
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gfr_AccretionExpenses_lbl1" xml:lang="en-US">Accretion Expenses</label>  
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_AccretionExpenses" xlink:to="gfr_AccretionExpenses_lbl1"/>    
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_ProfitLossBeforeTax_lbl1" xml:lang="en-US">Profit (loss) before tax</label> 
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_ProfitLossBeforeTax" xlink:to="ifrs-full_ProfitLossBeforeTax_lbl1"/>     
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="dei_EntityAddressCityOrTown_lbl0" xml:lang="en-US">Entity Address, City or Town</label>   
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="dei_EntityAddressCityOrTown" xlink:to="dei_EntityAddressCityOrTown_lbl0"/> 
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gfr_CommodityRiskPutPrice_lbl1" xml:lang="en-US">Commodity Risk Put Price</label>  
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_CommodityRiskPutPrice" xlink:to="gfr_CommodityRiskPutPrice_lbl1"/>  
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_IncreaseDecreaseThroughSharebasedPaymentTransactions_lbl0" xml:lang="en-US">Increase (decrease) through share-based payment transactions, equity</label>   
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_IncreaseDecreaseThroughSharebasedPaymentTransactions" xlink:to="ifrs-full_IncreaseDecreaseThroughSharebasedPaymentTransactions_lbl0"/> 
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_NetDeferredTaxAssetsAndLiabilitiesAbstract_lbl0" xml:lang="en-US">Net deferred tax assets and liabilities [abstract]</label>     
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_NetDeferredTaxAssetsAndLiabilitiesAbstract" xlink:to="ifrs-full_NetDeferredTaxAssetsAndLiabilitiesAbstract_lbl0"/> 
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gfr_IncreasedecreaseShareIssuanceCostsNetOfTax_lbl1" xml:lang="en-US">Increasedecrease Share Issuance Costs Net Of Tax</label>  
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_IncreasedecreaseShareIssuanceCostsNetOfTax" xlink:to="gfr_IncreasedecreaseShareIssuanceCostsNetOfTax_lbl1"/>    
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_GainsLossesOnChangeInFairValueOfDerivatives_lbl0" xml:lang="en-US">Gains (losses) on change in fair value of derivatives</label>    
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_GainsLossesOnChangeInFairValueOfDerivatives" xlink:to="ifrs-full_GainsLossesOnChangeInFairValueOfDerivatives_lbl0"/>   
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="dei_DocumentFinStmtErrorCorrectionFlag_lbl0" xml:lang="en-US">Document Financial Statement Error Correction [Flag]</label>   
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="dei_DocumentFinStmtErrorCorrectionFlag" xlink:to="dei_DocumentFinStmtErrorCorrectionFlag_lbl0"/>   
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gfr_AdjustmentForDifferencesInProvincialIncomeTaxPools_lbl1" xml:lang="en-US">Adjustment For Differences In Provincial Income Tax Pools</label>    
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_AdjustmentForDifferencesInProvincialIncomeTaxPools" xlink:to="gfr_AdjustmentForDifferencesInProvincialIncomeTaxPools_lbl1"/>     
    <loc xlink:type="locator" xlink:label="gfr_ScheduleOfRevenueFromContractsWithCustomersAbstract" xlink:href="gfr-20251231.xsd#gfr_ScheduleOfRevenueFromContractsWithCustomersAbstract"/>   
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gfr_ScheduleOfRevenueFromContractsWithCustomersAbstract_lbl" xml:lang="en-US">Schedule Of Revenue From Contracts With Customers Abstract</label>     
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_ScheduleOfRevenueFromContractsWithCustomersAbstract" xlink:to="gfr_ScheduleOfRevenueFromContractsWithCustomersAbstract_lbl"/> 
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gfr_NumberOfWarrantsCommonSharesIssuableOnExercise_lbl1" xml:lang="en-US">Number Of Warrants Common Shares Issuable On Exercise</label> 
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_NumberOfWarrantsCommonSharesIssuableOnExercise" xlink:to="gfr_NumberOfWarrantsCommonSharesIssuableOnExercise_lbl1"/>  
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gfr_MaturityDate_lbl1" xml:lang="en-US">Maturity Date</label>  
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_MaturityDate" xlink:to="gfr_MaturityDate_lbl1"/>    
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gfr_NumberOfSharesUnits_lbl1" xml:lang="en-US">Number Of Shares Units</label>   
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_NumberOfSharesUnits" xlink:to="gfr_NumberOfSharesUnits_lbl1"/>   
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_OtherInflowsOutflowsOfCashClassifiedAsInvestingActivities_lbl0" xml:lang="en-US">Other inflows (outflows) of cash, classified as investing activities</label>   
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_OtherInflowsOutflowsOfCashClassifiedAsInvestingActivities" xlink:to="ifrs-full_OtherInflowsOutflowsOfCashClassifiedAsInvestingActivities_lbl0"/> 
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_ChangesInDeferredTaxLiabilityAssetAbstract_lbl0" xml:lang="en-US">Changes in deferred tax liability (asset) [abstract]</label>  
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_ChangesInDeferredTaxLiabilityAssetAbstract" xlink:to="ifrs-full_ChangesInDeferredTaxLiabilityAssetAbstract_lbl0"/> 
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_DisclosureOfBasisOfPreparationOfFinancialStatementsExplanatory_lbl0" xml:lang="en-US">Disclosure of basis of preparation of financial statements [text block]</label> 
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_DisclosureOfBasisOfPreparationOfFinancialStatementsExplanatory" xlink:to="ifrs-full_DisclosureOfBasisOfPreparationOfFinancialStatementsExplanatory_lbl0"/> 
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_NumberOfShareOptionsGrantedInSharebasedPaymentArrangement_lbl0" xml:lang="en-US">Number of share options granted in share-based payment arrangement</label> 
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_NumberOfShareOptionsGrantedInSharebasedPaymentArrangement" xlink:to="ifrs-full_NumberOfShareOptionsGrantedInSharebasedPaymentArrangement_lbl0"/> 
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_CategoriesOfFinancialAssetsAbstract_lbl0" xml:lang="en-US">Categories of financial assets [abstract]</label>    
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_CategoriesOfFinancialAssetsAbstract" xlink:to="ifrs-full_CategoriesOfFinancialAssetsAbstract_lbl0"/>  
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gfr_PWsMember_lbl0" xml:lang="en-US">PWs Member</label> 
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_PWsMember" xlink:to="gfr_PWsMember_lbl0"/>   
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gfr_NonCashWorkingCapitalRelatedToOperatingActivities_lbl1" xml:lang="en-US">Non Cash Working Capital Related To Operating Activities</label>  
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_NonCashWorkingCapitalRelatedToOperatingActivities" xlink:to="gfr_NonCashWorkingCapitalRelatedToOperatingActivities_lbl1"/>   
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gfr_ContributedSurplusMember_lbl0" xml:lang="en-US">Contributed Surplus Member</label>  
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_ContributedSurplusMember" xlink:to="gfr_ContributedSurplusMember_lbl0"/>   
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gfr_LongtermDebtRedemptionPayments_lbl1" xml:lang="en-US">Longterm Debt Redemption Payments</label>     
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_LongtermDebtRedemptionPayments" xlink:to="gfr_LongtermDebtRedemptionPayments_lbl1"/>     
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gfr_WarrantsFixedInterestRate_lbl1" xml:lang="en-US">Warrants Fixed Interest Rate</label>     
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_WarrantsFixedInterestRate" xlink:to="gfr_WarrantsFixedInterestRate_lbl1"/>     
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gfr_AccumulatedDepletionDepreciationAndAmortizationAbstract_lbl0" xml:lang="en-US">Accumulated Depletion Depreciation And Amortization Abstract</label>  
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_AccumulatedDepletionDepreciationAndAmortizationAbstract" xlink:to="gfr_AccumulatedDepletionDepreciationAndAmortizationAbstract_lbl0"/>     
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gfr_CombinedFederalAndProvincialIncomeTaxPools_lbl1" xml:lang="en-US">Combined Federal And Provincial Income Tax Pools</label>  
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_CombinedFederalAndProvincialIncomeTaxPools" xlink:to="gfr_CombinedFederalAndProvincialIncomeTaxPools_lbl1"/>    
    <loc xlink:type="locator" xlink:label="ifrs-full_IncomeStatementAbstract" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_IncomeStatementAbstract"/>   
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_IncomeStatementAbstract_lbl" xml:lang="en-US">Profit or loss [abstract]</label>     
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_IncomeStatementAbstract" xlink:to="ifrs-full_IncomeStatementAbstract_lbl"/>  
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_DescriptionOfAccountingPolicyForBusinessCombinationsExplanatory_lbl0" xml:lang="en-US">Description of accounting policy for business combinations [text block]</label>  
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_DescriptionOfAccountingPolicyForBusinessCombinationsExplanatory" xlink:to="ifrs-full_DescriptionOfAccountingPolicyForBusinessCombinationsExplanatory_lbl0"/>   
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_CurrentPortionOfLongtermBorrowings_lbl0" xml:lang="en-US">Current portion of non-current borrowings</label>   
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_CurrentPortionOfLongtermBorrowings" xlink:to="ifrs-full_CurrentPortionOfLongtermBorrowings_lbl0"/>     
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gfr_CommonSharesLimitedPartnershipOwnershipPercentage_lbl1" xml:lang="en-US">Common Shares Limited Partnership Ownership Percentage</label>     
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_CommonSharesLimitedPartnershipOwnershipPercentage" xlink:to="gfr_CommonSharesLimitedPartnershipOwnershipPercentage_lbl1"/>   
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_ChangesInPropertyPlantAndEquipment_lbl0" xml:lang="en-US">Increase (decrease) in property, plant and equipment</label>    
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_ChangesInPropertyPlantAndEquipment" xlink:to="ifrs-full_ChangesInPropertyPlantAndEquipment_lbl0"/>     
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gfr_CommodityRiskCallPrice_lbl1" xml:lang="en-US">Commodity Risk Call Price</label>    
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_CommodityRiskCallPrice" xlink:to="gfr_CommodityRiskCallPrice_lbl1"/>    
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_LaterThanFiveYearsMember_lbl0" xml:lang="en-US">Later than five years [member]</label>  
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_LaterThanFiveYearsMember" xlink:to="ifrs-full_LaterThanFiveYearsMember_lbl0"/>     
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_OperatingExpense_lbl0" xml:lang="en-US">Operating expense</label> 
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_OperatingExpense" xlink:to="ifrs-full_OperatingExpense_lbl0"/>    
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_Assets_lbl0" xml:lang="en-US">Assets</label>     
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_Assets" xlink:to="ifrs-full_Assets_lbl0"/>    
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_Liabilities_lbl0" xml:lang="en-US">Liabilities</label>     
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_Liabilities" xlink:to="ifrs-full_Liabilities_lbl0"/>    
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gfr_WCSDifferentialSwapMember_lbl0" xml:lang="en-US">WCSDifferential Swap Member</label>    
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_WCSDifferentialSwapMember" xlink:to="gfr_WCSDifferentialSwapMember_lbl0"/>     
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_NumberOfShareOptionsForfeitedInSharebasedPaymentArrangement_lbl0" xml:lang="en-US">Number of share options forfeited in share-based payment arrangement</label>     
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_NumberOfShareOptionsForfeitedInSharebasedPaymentArrangement" xlink:to="ifrs-full_NumberOfShareOptionsForfeitedInSharebasedPaymentArrangement_lbl0"/>     
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_DisclosureOfDeferredTaxesExplanatory_lbl0" xml:lang="en-US">Disclosure of deferred taxes [text block]</label>     
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_DisclosureOfDeferredTaxesExplanatory" xlink:to="ifrs-full_DisclosureOfDeferredTaxesExplanatory_lbl0"/>    
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_ProfitLoss_lbl2" xml:lang="en-US">Profit (loss)</label> 
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_ProfitLoss" xlink:to="ifrs-full_ProfitLoss_lbl2"/>  
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="dei_EntityAddressStateOrProvince_lbl0" xml:lang="en-US">Entity Address, State or Province</label>   
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="dei_EntityAddressStateOrProvince" xlink:to="dei_EntityAddressStateOrProvince_lbl0"/> 
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_RestrictedShareUnitsMember_lbl0" xml:lang="en-US">Restricted share units [member]</label>     
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_RestrictedShareUnitsMember" xlink:to="ifrs-full_RestrictedShareUnitsMember_lbl0"/>    
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gfr_CarryingValueMember_lbl0" xml:lang="en-US">Carrying Value Member</label>  
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_CarryingValueMember" xlink:to="gfr_CarryingValueMember_lbl0"/>   
    <loc xlink:type="locator" xlink:label="gfr_ScheduleOfFinancialCommodityRiskManagementContractsAbstract" xlink:href="gfr-20251231.xsd#gfr_ScheduleOfFinancialCommodityRiskManagementContractsAbstract"/>    
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gfr_ScheduleOfFinancialCommodityRiskManagementContractsAbstract_lbl" xml:lang="en-US">Schedule Of Financial Commodity Risk Management Contracts Abstract</label> 
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_ScheduleOfFinancialCommodityRiskManagementContractsAbstract" xlink:to="gfr_ScheduleOfFinancialCommodityRiskManagementContractsAbstract_lbl"/>  
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_Equity_lbl2" xml:lang="en-US">Equity</label>     
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_Equity" xlink:to="ifrs-full_Equity_lbl2"/>    
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gfr_AthabascaRegionNorthernAlbertaMember_lbl0" xml:lang="en-US">Athabasca Region Northern Alberta Member</label>   
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_AthabascaRegionNorthernAlbertaMember" xlink:to="gfr_AthabascaRegionNorthernAlbertaMember_lbl0"/>  
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gfr_DescriptionOfAccountingPolicyForJointArrangementsTextBlock_lbl1" xml:lang="en-US">Description Of Accounting Policy For Joint Arrangements Text Block</label> 
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_DescriptionOfAccountingPolicyForJointArrangementsTextBlock" xlink:to="gfr_DescriptionOfAccountingPolicyForJointArrangementsTextBlock_lbl1"/> 
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_InterestExpenseOnOtherFinancialLiabilities_lbl0" xml:lang="en-US">Interest expense on other financial liabilities</label>  
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_InterestExpenseOnOtherFinancialLiabilities" xlink:to="ifrs-full_InterestExpenseOnOtherFinancialLiabilities_lbl0"/> 
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_EffectOfExchangeRateChangesOnCashAndCashEquivalents_lbl0" xml:lang="en-US">Effect of exchange rate changes on cash and cash equivalents</label>    
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_EffectOfExchangeRateChangesOnCashAndCashEquivalents" xlink:to="ifrs-full_EffectOfExchangeRateChangesOnCashAndCashEquivalents_lbl0"/>    
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_CashAndCashEquivalents_lbl2" xml:lang="en-US">Cash and cash equivalents</label>     
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_CashAndCashEquivalents" xlink:to="ifrs-full_CashAndCashEquivalents_lbl2"/> 
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_DilutedEarningsLossPerShare_lbl1" xml:lang="en-US">Diluted earnings (loss) per share</label>   
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_DilutedEarningsLossPerShare" xlink:to="ifrs-full_DilutedEarningsLossPerShare_lbl1"/> 
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gfr_RemeasurementOfRightofuseAssets_lbl1" xml:lang="en-US">Remeasurement Of Rightofuse Assets</label>  
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_RemeasurementOfRightofuseAssets" xlink:to="gfr_RemeasurementOfRightofuseAssets_lbl1"/>  
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gfr_CanadianOilAndGasPropertyExpendituresMember_lbl0" xml:lang="en-US">Canadian Oil And Gas Property Expenditures Member</label>    
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_CanadianOilAndGasPropertyExpendituresMember" xlink:to="gfr_CanadianOilAndGasPropertyExpendituresMember_lbl0"/> 
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_DisclosureOfNatureAndExtentOfRisksArisingFromFinancialInstrumentsExplanatory_lbl0" xml:lang="en-US">Disclosure of nature and extent of risks arising from financial instruments [text block]</label>  
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_DisclosureOfNatureAndExtentOfRisksArisingFromFinancialInstrumentsExplanatory" xlink:to="ifrs-full_DisclosureOfNatureAndExtentOfRisksArisingFromFinancialInstrumentsExplanatory_lbl0"/>    
    <loc xlink:type="locator" xlink:label="gfr_ScheduleOfTaxableIncomeAbstract" xlink:href="gfr-20251231.xsd#gfr_ScheduleOfTaxableIncomeAbstract"/>   
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gfr_ScheduleOfTaxableIncomeAbstract_lbl" xml:lang="en-US">Schedule Of Taxable Income Abstract</label>  
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_ScheduleOfTaxableIncomeAbstract" xlink:to="gfr_ScheduleOfTaxableIncomeAbstract_lbl"/> 
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_FinancialLiabilities_lbl0" xml:lang="en-US">Financial liabilities</label>    
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_FinancialLiabilities" xlink:to="ifrs-full_FinancialLiabilities_lbl0"/>  
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_SalesAndMarketingExpense_lbl0" xml:lang="en-US">Sales and marketing expense</label>    
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_SalesAndMarketingExpense" xlink:to="ifrs-full_SalesAndMarketingExpense_lbl0"/>     
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_NumberOfShareOptionsExpiredInSharebasedPaymentArrangement_lbl0" xml:lang="en-US">Number of share options expired in share-based payment arrangement</label> 
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_NumberOfShareOptionsExpiredInSharebasedPaymentArrangement" xlink:to="ifrs-full_NumberOfShareOptionsExpiredInSharebasedPaymentArrangement_lbl0"/> 
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_DeferredTaxExpenseIncome_lbl0" xml:lang="en-US">Deferred tax expense (income)</label> 
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_DeferredTaxExpenseIncome" xlink:to="ifrs-full_DeferredTaxExpenseIncome_lbl0"/>     
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gfr_UnrealizedGainlossOnRiskManagementContracts_lbl1" xml:lang="en-US">Unrealized Gainloss On Risk Management Contracts</label>   
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_UnrealizedGainlossOnRiskManagementContracts" xlink:to="gfr_UnrealizedGainlossOnRiskManagementContracts_lbl1"/> 
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gfr_CostAbstract_lbl0" xml:lang="en-US">Cost Abstract</label>  
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_CostAbstract" xlink:to="gfr_CostAbstract_lbl0"/>    
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gfr_ExplorationAndOtherExpenses_lbl1" xml:lang="en-US">Exploration And Other Expenses</label>    
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_ExplorationAndOtherExpenses" xlink:to="gfr_ExplorationAndOtherExpenses_lbl1"/>    
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_TradeAndOtherPayablesToTradeSuppliers_lbl0" xml:lang="en-US">Trade payables</label>    
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_TradeAndOtherPayablesToTradeSuppliers" xlink:to="ifrs-full_TradeAndOtherPayablesToTradeSuppliers_lbl0"/> 
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_DebtSecurities_lbl1" xml:lang="en-US">Debt instruments issued</label>     
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_DebtSecurities" xlink:to="ifrs-full_DebtSecurities_lbl1"/>     
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gfr_AccountsPayableAndAccruedLiabilitiesTextBlock_lbl1" xml:lang="en-US">Accounts Payable And Accrued Liabilities Text Block</label>   
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_AccountsPayableAndAccruedLiabilitiesTextBlock" xlink:to="gfr_AccountsPayableAndAccruedLiabilitiesTextBlock_lbl1"/>     
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_PaymentsForShareIssueCosts_lbl1" xml:lang="en-US">Payments for share issue costs</label>    
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_PaymentsForShareIssueCosts" xlink:to="ifrs-full_PaymentsForShareIssueCosts_lbl1"/>    
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_DepreciationPropertyPlantAndEquipmentIncludingRightofuseAssets_lbl0" xml:lang="en-US">Depreciation, property, plant and equipment including right-of-use assets</label>   
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_DepreciationPropertyPlantAndEquipmentIncludingRightofuseAssets" xlink:to="ifrs-full_DepreciationPropertyPlantAndEquipmentIncludingRightofuseAssets_lbl0"/> 
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gfr_ExpectedStatutoryIncomeTaxRate_lbl1" xml:lang="en-US">Expected Statutory Income Tax Rate</label> 
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_ExpectedStatutoryIncomeTaxRate" xlink:to="gfr_ExpectedStatutoryIncomeTaxRate_lbl1"/>     
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gfr_UnsecuredCreditFacility_lbl1" xml:lang="en-US">Unsecured Credit Facility</label>     
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_UnsecuredCreditFacility" xlink:to="gfr_UnsecuredCreditFacility_lbl1"/> 
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_ProceedsFromIssuingShares_lbl2" xml:lang="en-US">Proceeds from issuing shares</label> 
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_ProceedsFromIssuingShares" xlink:to="ifrs-full_ProceedsFromIssuingShares_lbl2"/>  
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gfr_ShareBasedCompensations_lbl1" xml:lang="en-US">Share Based Compensations</label>     
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_ShareBasedCompensations" xlink:to="gfr_ShareBasedCompensations_lbl1"/> 
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gfr_WTICostlessCollarMember_lbl0" xml:lang="en-US">WTICostless Collar Member</label>     
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_WTICostlessCollarMember" xlink:to="gfr_WTICostlessCollarMember_lbl0"/> 
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_DisclosureOfBorrowingsExplanatory_lbl0" xml:lang="en-US">Disclosure of borrowings [text block]</label>   
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_DisclosureOfBorrowingsExplanatory" xlink:to="ifrs-full_DisclosureOfBorrowingsExplanatory_lbl0"/>   
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gfr_ClassOfWarrantsOrRightsExercisePrice_lbl1" xml:lang="en-US">Class Of Warrants Or Rights Exercise Price</label>     
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_ClassOfWarrantsOrRightsExercisePrice" xlink:to="gfr_ClassOfWarrantsOrRightsExercisePrice_lbl1"/>  
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_IncreaseDecreaseInFairValueMeasurementLiabilities_lbl0" xml:lang="en-US">Increase (decrease) in fair value measurement, liabilities</label>     
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_IncreaseDecreaseInFairValueMeasurementLiabilities" xlink:to="ifrs-full_IncreaseDecreaseInFairValueMeasurementLiabilities_lbl0"/>     
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gfr_DescriptionOfAccountingPolicyForStandardsIssuedButNotEffectiveTextBlock_lbl1" xml:lang="en-US">Description Of Accounting Policy For Standards Issued But Not Effective Text Block</label>     
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_DescriptionOfAccountingPolicyForStandardsIssuedButNotEffectiveTextBlock" xlink:to="gfr_DescriptionOfAccountingPolicyForStandardsIssuedButNotEffectiveTextBlock_lbl1"/>  
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_WeightedAverageExercisePriceOfShareOptionsOutstandingInSharebasedPaymentArrangement2019_lbl0" xml:lang="en-US">Weighted average exercise price of share options outstanding in share-based payment arrangement</label>     
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_WeightedAverageExercisePriceOfShareOptionsOutstandingInSharebasedPaymentArrangement2019" xlink:to="ifrs-full_WeightedAverageExercisePriceOfShareOptionsOutstandingInSharebasedPaymentArrangement2019_lbl0"/> 
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_IncreaseDecreaseInWorkingCapital_lbl0" xml:lang="en-US">Increase (decrease) in working capital</label>   
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_IncreaseDecreaseInWorkingCapital" xlink:to="ifrs-full_IncreaseDecreaseInWorkingCapital_lbl0"/> 
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gfr_ChangeInIncomeTaxPayable_lbl1" xml:lang="en-US">Change In Income Tax Payable</label>    
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_ChangeInIncomeTaxPayable" xlink:to="gfr_ChangeInIncomeTaxPayable_lbl1"/>   
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gfr_RightOfUseAssetsMember_lbl0" xml:lang="en-US">Right Of Use Assets Member</label>     
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_RightOfUseAssetsMember" xlink:to="gfr_RightOfUseAssetsMember_lbl0"/>    
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gfr_FinancialInstrumentClassification_lbl1" xml:lang="en-US">Financial Instrument Classification</label>     
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_FinancialInstrumentClassification" xlink:to="gfr_FinancialInstrumentClassification_lbl1"/> 
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="dei_AmendmentFlag_lbl0" xml:lang="en-US">Amendment Flag</label>    
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="dei_AmendmentFlag" xlink:to="dei_AmendmentFlag_lbl0"/> 
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gfr_DisclosureOfCapitalManagementTextBlock_lbl1" xml:lang="en-US">Disclosure Of Capital Management Text Block</label>   
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_DisclosureOfCapitalManagementTextBlock" xlink:to="gfr_DisclosureOfCapitalManagementTextBlock_lbl1"/> 
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gfr_DevelopedAndProducingMember_lbl0" xml:lang="en-US">Developed And Producing Member</label>    
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_DevelopedAndProducingMember" xlink:to="gfr_DevelopedAndProducingMember_lbl0"/>    
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gfr_ChangeinTaxAssetRecognizedShareIssuanceCostsEquity_lbl1" xml:lang="en-US">Changein Tax Asset Recognized Share Issuance Costs Equity</label>    
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_ChangeinTaxAssetRecognizedShareIssuanceCostsEquity" xlink:to="gfr_ChangeinTaxAssetRecognizedShareIssuanceCostsEquity_lbl1"/>     
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gfr_WarrantLiabilityMember_lbl0" xml:lang="en-US">Warrant Liability Member</label>   
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_WarrantLiabilityMember" xlink:to="gfr_WarrantLiabilityMember_lbl0"/>    
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="dei_EntityCentralIndexKey_lbl0" xml:lang="en-US">Entity Central Index Key</label>  
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="dei_EntityCentralIndexKey" xlink:to="dei_EntityCentralIndexKey_lbl0"/>  
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_DisclosureOfSharebasedPaymentArrangementsExplanatory_lbl0" xml:lang="en-US">Disclosure of share-based payment arrangements [text block]</label>    
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_DisclosureOfSharebasedPaymentArrangementsExplanatory" xlink:to="ifrs-full_DisclosureOfSharebasedPaymentArrangementsExplanatory_lbl0"/> 
    <loc xlink:type="locator" xlink:label="ifrs-full_DeferredTaxAssetsAndLiabilitiesAbstract" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DeferredTaxAssetsAndLiabilitiesAbstract"/>     
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_DeferredTaxAssetsAndLiabilitiesAbstract_lbl" xml:lang="en-US">Deferred tax assets and liabilities [abstract]</label>  
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_DeferredTaxAssetsAndLiabilitiesAbstract" xlink:to="ifrs-full_DeferredTaxAssetsAndLiabilitiesAbstract_lbl"/>    
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gfr_SecuredNotesIssued_lbl1" xml:lang="en-US">Secured Notes Issued</label>     
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_SecuredNotesIssued" xlink:to="gfr_SecuredNotesIssued_lbl1"/> 
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gfr_NumberOfCommonShares_lbl1" xml:lang="en-US">Number Of Common Shares</label>     
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_NumberOfCommonShares" xlink:to="gfr_NumberOfCommonShares_lbl1"/>     
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="dei_AuditorLocation_lbl0" xml:lang="en-US">Auditor Location</label>   
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="dei_AuditorLocation" xlink:to="dei_AuditorLocation_lbl0"/>     
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="dei_DocumentAnnualReport_lbl0" xml:lang="en-US">Document Annual Report</label>    
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="dei_DocumentAnnualReport" xlink:to="dei_DocumentAnnualReport_lbl0"/>     
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gfr_StockBasedCompensation_lbl1" xml:lang="en-US">Stock Based Compensation</label>   
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_StockBasedCompensation" xlink:to="gfr_StockBasedCompensation_lbl1"/>    
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_IssuedCapital_lbl2" xml:lang="en-US">Issued capital</label>     
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_IssuedCapital" xlink:to="ifrs-full_IssuedCapital_lbl2"/>   
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gfr_AccretionOfDecommissioningObligations_lbl1" xml:lang="en-US">Accretion Of Decommissioning Obligations</label>    
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_AccretionOfDecommissioningObligations" xlink:to="gfr_AccretionOfDecommissioningObligations_lbl1"/>    
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gfr_DisclosureOfCommitmentsTableTextBlock_lbl1" xml:lang="en-US">Disclosure Of Commitments Table Text Block</label> 
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_DisclosureOfCommitmentsTableTextBlock" xlink:to="gfr_DisclosureOfCommitmentsTableTextBlock_lbl1"/>    
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_DescriptionOfAccountingPolicyForSharebasedPaymentTransactionsExplanatory_lbl0" xml:lang="en-US">Description of accounting policy for share-based payment transactions [text block]</label>  
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_DescriptionOfAccountingPolicyForSharebasedPaymentTransactionsExplanatory" xlink:to="ifrs-full_DescriptionOfAccountingPolicyForSharebasedPaymentTransactionsExplanatory_lbl0"/> 
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_DisclosureOfCashFlowStatementExplanatory_lbl0" xml:lang="en-US">Disclosure of cash flow statement [text block]</label>    
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_DisclosureOfCashFlowStatementExplanatory" xlink:to="ifrs-full_DisclosureOfCashFlowStatementExplanatory_lbl0"/>  
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="dei_EntityRegistrantName_lbl0" xml:lang="en-US">Entity Registrant Name</label>    
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="dei_EntityRegistrantName" xlink:to="dei_EntityRegistrantName_lbl0"/>     
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_NumberOfOutstandingShareOptions_lbl1" xml:lang="en-US">Number of share options outstanding in share-based payment arrangement</label>    
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_NumberOfOutstandingShareOptions" xlink:to="ifrs-full_NumberOfOutstandingShareOptions_lbl1"/>    
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_CurrentLiabilities_lbl0" xml:lang="en-US">Current liabilities</label>     
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_CurrentLiabilities" xlink:to="ifrs-full_CurrentLiabilities_lbl0"/>   
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gfr_AdjustmentsForOtherIncome_lbl1" xml:lang="en-US">Adjustments For Other Income</label>     
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_AdjustmentsForOtherIncome" xlink:to="gfr_AdjustmentsForOtherIncome_lbl1"/>     
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gfr_OutstandingPrincipalPercentage_lbl1" xml:lang="en-US">Outstanding Principal Percentage</label>    
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_OutstandingPrincipalPercentage" xlink:to="gfr_OutstandingPrincipalPercentage_lbl1"/>     
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gfr_IncreasedecreaseIssuanceOfSharesOnRightsOffering_lbl1" xml:lang="en-US">Increasedecrease Issuance Of Shares On Rights Offering</label>    
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_IncreasedecreaseIssuanceOfSharesOnRightsOffering" xlink:to="gfr_IncreasedecreaseIssuanceOfSharesOnRightsOffering_lbl1"/> 
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gfr_ThirdQuarterMember_lbl0" xml:lang="en-US">Third Quarter Member</label>     
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_ThirdQuarterMember" xlink:to="gfr_ThirdQuarterMember_lbl0"/> 
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_ProvisionForDecommissioningRestorationAndRehabilitationCosts_lbl0" xml:lang="en-US">Provision for decommissioning, restoration and rehabilitation costs</label>     
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_ProvisionForDecommissioningRestorationAndRehabilitationCosts" xlink:to="ifrs-full_ProvisionForDecommissioningRestorationAndRehabilitationCosts_lbl0"/>  
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gfr_UndepreciatedCapitalCostMember_lbl0" xml:lang="en-US">Undepreciated Capital Cost Member</label>     
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_UndepreciatedCapitalCostMember" xlink:to="gfr_UndepreciatedCapitalCostMember_lbl0"/>     
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_WarrantsMember_lbl0" xml:lang="en-US">Warrants [member]</label>    
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_WarrantsMember" xlink:to="ifrs-full_WarrantsMember_lbl0"/>     
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_OtherAdjustmentsForNoncashItems_lbl0" xml:lang="en-US">Other adjustments for non-cash items</label>     
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_OtherAdjustmentsForNoncashItems" xlink:to="ifrs-full_OtherAdjustmentsForNoncashItems_lbl0"/>    
    <loc xlink:type="locator" xlink:label="ifrs-full_StatementOfCashFlowsAbstract" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_StatementOfCashFlowsAbstract"/>   
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_StatementOfCashFlowsAbstract_lbl" xml:lang="en-US">Statement of cash flows [abstract]</label>    
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_StatementOfCashFlowsAbstract" xlink:to="ifrs-full_StatementOfCashFlowsAbstract_lbl"/>  
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_InterestExpense_lbl0" xml:lang="en-US">Interest expense</label>    
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_InterestExpense" xlink:to="ifrs-full_InterestExpense_lbl0"/>  
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_PropertyPlantAndEquipment_lbl2" xml:lang="en-US">Property, plant and equipment</label>  
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_PropertyPlantAndEquipment" xlink:to="ifrs-full_PropertyPlantAndEquipment_lbl2"/>  
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gfr_DebtRedemptionPremiumFinancingActivities_lbl1" xml:lang="en-US">Debt Redemption Premium Financing Activities</label> 
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_DebtRedemptionPremiumFinancingActivities" xlink:to="gfr_DebtRedemptionPremiumFinancingActivities_lbl1"/>     
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_AdjustmentsForDecreaseIncreaseInTradeAndOtherReceivables_lbl0" xml:lang="en-US">Adjustments for decrease (increase) in trade and other receivables</label>     
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_AdjustmentsForDecreaseIncreaseInTradeAndOtherReceivables" xlink:to="ifrs-full_AdjustmentsForDecreaseIncreaseInTradeAndOtherReceivables_lbl0"/>    
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_FinancialAssetsAtFairValueThroughProfitOrLossAbstract_lbl0" xml:lang="en-US">Financial assets at fair value through profit or loss [abstract]</label>     
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_FinancialAssetsAtFairValueThroughProfitOrLossAbstract" xlink:to="ifrs-full_FinancialAssetsAtFairValueThroughProfitOrLossAbstract_lbl0"/>   
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_OtherRelatedPartiesMember_lbl0" xml:lang="en-US">Other related parties [member]</label>   
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_OtherRelatedPartiesMember" xlink:to="ifrs-full_OtherRelatedPartiesMember_lbl0"/>  
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gfr_WarrantsAndRightOutstandingTerm_lbl1" xml:lang="en-US">Warrants And Right Outstanding Term</label>   
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_WarrantsAndRightOutstandingTerm" xlink:to="gfr_WarrantsAndRightOutstandingTerm_lbl1"/>  
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gfr_IncomeTaxLossesCarriedForward_lbl1" xml:lang="en-US">Income Tax Losses Carried Forward</label>    
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_IncomeTaxLossesCarriedForward" xlink:to="gfr_IncomeTaxLossesCarriedForward_lbl1"/>   
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gfr_AccountsReceivablesMember_lbl0" xml:lang="en-US">Accounts Receivables Member</label>    
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_AccountsReceivablesMember" xlink:to="gfr_AccountsReceivablesMember_lbl0"/>     
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_AdjustedWeightedAverageShares_lbl0" xml:lang="en-US">Weighted average number of ordinary shares used in calculating diluted earnings per share</label> 
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_AdjustedWeightedAverageShares" xlink:to="ifrs-full_AdjustedWeightedAverageShares_lbl0"/>     
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gfr_GainlossOnRiskManagementContract_lbl1" xml:lang="en-US">Gainloss On Risk Management Contract</label>     
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_GainlossOnRiskManagementContract" xlink:to="gfr_GainlossOnRiskManagementContract_lbl1"/>    
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_DescriptionOfRiskFreeInterestRateShareOptionsGranted_lbl0" xml:lang="en-US">Risk free interest rate, share options granted</label> 
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_DescriptionOfRiskFreeInterestRateShareOptionsGranted" xlink:to="ifrs-full_DescriptionOfRiskFreeInterestRateShareOptionsGranted_lbl0"/> 
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gfr_ChangeInPrepaidExpensesAndDeposits_lbl1" xml:lang="en-US">Change In Prepaid Expenses And Deposits</label>     
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_ChangeInPrepaidExpensesAndDeposits" xlink:to="gfr_ChangeInPrepaidExpensesAndDeposits_lbl1"/>   
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_UndiscountedOperatingLeasePaymentsToBeReceived_lbl0" xml:lang="en-US">Undiscounted operating lease payments to be received</label> 
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_UndiscountedOperatingLeasePaymentsToBeReceived" xlink:to="ifrs-full_UndiscountedOperatingLeasePaymentsToBeReceived_lbl0"/>    
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gfr_DiluentExpense_lbl1" xml:lang="en-US">Diluent Expense</label> 
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_DiluentExpense" xlink:to="gfr_DiluentExpense_lbl1"/>   
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gfr_RoyaltiesMember_lbl0" xml:lang="en-US">Royalties Member</label>   
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_RoyaltiesMember" xlink:to="gfr_RoyaltiesMember_lbl0"/>     
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_ActuarialAssumptionOfDiscountRates_lbl0" xml:lang="en-US">Actuarial assumption of discount rates</label>     
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_ActuarialAssumptionOfDiscountRates" xlink:to="ifrs-full_ActuarialAssumptionOfDiscountRates_lbl0"/>     
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gfr_NumberOfWarrantsCommonSharesIssuableOnExerciseAmount_lbl1" xml:lang="en-US">Number Of Warrants Common Shares Issuable On Exercise Amount</label>    
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_NumberOfWarrantsCommonSharesIssuableOnExerciseAmount" xlink:to="gfr_NumberOfWarrantsCommonSharesIssuableOnExerciseAmount_lbl1"/>    
    <loc xlink:type="locator" xlink:label="gfr_ScheduleOfWarrantLiabilityAbstract" xlink:href="gfr-20251231.xsd#gfr_ScheduleOfWarrantLiabilityAbstract"/>    
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gfr_ScheduleOfWarrantLiabilityAbstract_lbl" xml:lang="en-US">Schedule Of Warrant Liability Abstract</label>   
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_ScheduleOfWarrantLiabilityAbstract" xlink:to="gfr_ScheduleOfWarrantLiabilityAbstract_lbl"/>  
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_NoncurrentLiabilities_lbl1" xml:lang="en-US">Non-current liabilities</label>  
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_NoncurrentLiabilities" xlink:to="ifrs-full_NoncurrentLiabilities_lbl1"/>    
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gfr_FairValueOfCommodityRiskManagementContractsDecrease_lbl1" xml:lang="en-US">Fair Value Of Commodity Risk Management Contracts Decrease</label> 
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_FairValueOfCommodityRiskManagementContractsDecrease" xlink:to="gfr_FairValueOfCommodityRiskManagementContractsDecrease_lbl1"/>  
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_PurchaseOfPropertyPlantAndEquipmentClassifiedAsInvestingActivities_lbl0" xml:lang="en-US">Purchase of property, plant and equipment, classified as investing activities</label> 
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_PurchaseOfPropertyPlantAndEquipmentClassifiedAsInvestingActivities" xlink:to="ifrs-full_PurchaseOfPropertyPlantAndEquipmentClassifiedAsInvestingActivities_lbl0"/>    
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gfr_WTIFixedPriceSwapMember_lbl0" xml:lang="en-US">WTIFixed Price Swap Member</label> 
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_WTIFixedPriceSwapMember" xlink:to="gfr_WTIFixedPriceSwapMember_lbl0"/> 
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_MaturityAnalysisForNonderivativeFinancialLiabilities_lbl0" xml:lang="en-US">Disclosure of maturity analysis for non-derivative financial liabilities [text block]</label>     
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_MaturityAnalysisForNonderivativeFinancialLiabilities" xlink:to="ifrs-full_MaturityAnalysisForNonderivativeFinancialLiabilities_lbl0"/> 
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_TradeAndOtherCurrentPayables_lbl1" xml:lang="en-US">Trade and other current payables</label>   
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_TradeAndOtherCurrentPayables" xlink:to="ifrs-full_TradeAndOtherCurrentPayables_lbl1"/>   
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_DescriptionOfAccountingPolicyForFairValueMeasurementExplanatory_lbl0" xml:lang="en-US">Description of accounting policy for fair value measurement [text block]</label>   
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_DescriptionOfAccountingPolicyForFairValueMeasurementExplanatory" xlink:to="ifrs-full_DescriptionOfAccountingPolicyForFairValueMeasurementExplanatory_lbl0"/>   
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gfr_AccruedInterestPayable_lbl1" xml:lang="en-US">Accrued Interest Payable</label>   
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_AccruedInterestPayable" xlink:to="gfr_AccruedInterestPayable_lbl1"/>    
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gfr_DecommissioningObligationsValue_lbl1" xml:lang="en-US">Decommissioning Obligations Value</label> 
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_DecommissioningObligationsValue" xlink:to="gfr_DecommissioningObligationsValue_lbl1"/>  
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_DisclosureOfCreditRiskExplanatory_lbl0" xml:lang="en-US">Disclosure of credit risk [text block]</label>    
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_DisclosureOfCreditRiskExplanatory" xlink:to="ifrs-full_DisclosureOfCreditRiskExplanatory_lbl0"/>   
    <loc xlink:type="locator" xlink:label="gfr_ScheduleOfContractualMaturitiesOfItsFinancialLiabilitiesAbstract" xlink:href="gfr-20251231.xsd#gfr_ScheduleOfContractualMaturitiesOfItsFinancialLiabilitiesAbstract"/>    
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gfr_ScheduleOfContractualMaturitiesOfItsFinancialLiabilitiesAbstract_lbl" xml:lang="en-US">Schedule Of Contractual Maturities Of Its Financial Liabilities Abstract</label>  
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_ScheduleOfContractualMaturitiesOfItsFinancialLiabilitiesAbstract" xlink:to="gfr_ScheduleOfContractualMaturitiesOfItsFinancialLiabilitiesAbstract_lbl"/>  
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gfr_TwoThousandThirtyMember_lbl0" xml:lang="en-US">Two Thousand Thirty Member</label> 
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_TwoThousandThirtyMember" xlink:to="gfr_TwoThousandThirtyMember_lbl0"/> 
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="dei_EntityExTransitionPeriod_lbl0" xml:lang="en-US">Entity Ex Transition Period</label>   
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="dei_EntityExTransitionPeriod" xlink:to="dei_EntityExTransitionPeriod_lbl0"/>   
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gfr_TwoThousandTwentyEightNoteMember_lbl1" xml:lang="en-US">Two Thousand Twenty Eight Note Member</label> 
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_TwoThousandTwentyEightNoteMember" xlink:to="gfr_TwoThousandTwentyEightNoteMember_lbl1"/>    
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gfr_AccruedJointInterestReceivables_lbl1" xml:lang="en-US">Accrued Joint Interest Receivables</label>  
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_AccruedJointInterestReceivables" xlink:to="gfr_AccruedJointInterestReceivables_lbl1"/>  
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_DescriptionOfAccountingPolicyForPropertyPlantAndEquipmentExplanatory_lbl0" xml:lang="en-US">Description of accounting policy for property, plant and equipment [text block]</label>     
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_DescriptionOfAccountingPolicyForPropertyPlantAndEquipmentExplanatory" xlink:to="ifrs-full_DescriptionOfAccountingPolicyForPropertyPlantAndEquipmentExplanatory_lbl0"/>   
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gfr_NonDilutedBitumenSalesMember_lbl0" xml:lang="en-US">Non Diluted Bitumen Sales Member</label>  
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_NonDilutedBitumenSalesMember" xlink:to="gfr_NonDilutedBitumenSalesMember_lbl0"/> 
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_PaymentsOfLeaseLiabilitiesClassifiedAsFinancingActivities_lbl0" xml:lang="en-US">Payments of lease liabilities, classified as financing activities</label>     
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_PaymentsOfLeaseLiabilitiesClassifiedAsFinancingActivities" xlink:to="ifrs-full_PaymentsOfLeaseLiabilitiesClassifiedAsFinancingActivities_lbl0"/> 
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gfr_OilInventories_lbl1" xml:lang="en-US">Oil Inventories</label> 
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_OilInventories" xlink:to="gfr_OilInventories_lbl1"/>   
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="dei_AnnualInformationForm_lbl0" xml:lang="en-US">Annual Information Form</label> 
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="dei_AnnualInformationForm" xlink:to="dei_AnnualInformationForm_lbl0"/>  
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_GeneralAndAdministrativeExpense_lbl0" xml:lang="en-US">General and administrative expense</label>   
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_GeneralAndAdministrativeExpense" xlink:to="ifrs-full_GeneralAndAdministrativeExpense_lbl0"/>    
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gfr_DisclosureOfReconcilesTheWarrantLiabilityTextBlock_lbl1" xml:lang="en-US">Disclosure Of Reconciles The Warrant Liability Text Block</label>    
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_DisclosureOfReconcilesTheWarrantLiabilityTextBlock" xlink:to="gfr_DisclosureOfReconcilesTheWarrantLiabilityTextBlock_lbl1"/>     
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_DescriptionOfAccountingPolicyForImpairmentOfNonfinancialAssetsExplanatory_lbl0" xml:lang="en-US">Description of accounting policy for impairment of non-financial assets [text block]</label>     
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_DescriptionOfAccountingPolicyForImpairmentOfNonfinancialAssetsExplanatory" xlink:to="ifrs-full_DescriptionOfAccountingPolicyForImpairmentOfNonfinancialAssetsExplanatory_lbl0"/>   
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_DisclosureOfRelatedPartyExplanatory_lbl0" xml:lang="en-US">Disclosure of related party [text block]</label>   
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_DisclosureOfRelatedPartyExplanatory" xlink:to="ifrs-full_DisclosureOfRelatedPartyExplanatory_lbl0"/>  
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_ActuarialAssumptionOfExpectedRatesOfInflation_lbl0" xml:lang="en-US">Actuarial assumption of expected rates of inflation</label>    
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_ActuarialAssumptionOfExpectedRatesOfInflation" xlink:to="ifrs-full_ActuarialAssumptionOfExpectedRatesOfInflation_lbl0"/>  
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_DisclosureOfDerivativeFinancialInstrumentsExplanatory_lbl0" xml:lang="en-US">Disclosure of derivative financial instruments [text block]</label>     
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_DisclosureOfDerivativeFinancialInstrumentsExplanatory" xlink:to="ifrs-full_DisclosureOfDerivativeFinancialInstrumentsExplanatory_lbl0"/>   
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_EquityAndLiabilities_lbl0" xml:lang="en-US">Equity and liabilities</label>     
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_EquityAndLiabilities" xlink:to="ifrs-full_EquityAndLiabilities_lbl0"/>  
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gfr_WorkingInterestPercentage_lbl1" xml:lang="en-US">Working Interest Percentage</label>    
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_WorkingInterestPercentage" xlink:to="gfr_WorkingInterestPercentage_lbl1"/>     
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="dei_IcfrAuditorAttestationFlag_lbl0" xml:lang="en-US">ICFR Auditor Attestation Flag</label>  
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="dei_IcfrAuditorAttestationFlag" xlink:to="dei_IcfrAuditorAttestationFlag_lbl0"/>  
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gfr_DisclosureOfInventoriesTableTextBlock_lbl1" xml:lang="en-US">Disclosure Of Inventories Table Text Block</label> 
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_DisclosureOfInventoriesTableTextBlock" xlink:to="gfr_DisclosureOfInventoriesTableTextBlock_lbl1"/>    
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gfr_AECOSwapMember_lbl0" xml:lang="en-US">AECOSwap Member</label> 
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_AECOSwapMember" xlink:to="gfr_AECOSwapMember_lbl0"/>   
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="dei_DocumentFiscalYearFocus_lbl0" xml:lang="en-US">Document Fiscal Year Focus</label> 
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="dei_DocumentFiscalYearFocus" xlink:to="dei_DocumentFiscalYearFocus_lbl0"/> 
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gfr_CanadianExplorationExpendituresMember_lbl0" xml:lang="en-US">Canadian Exploration Expenditures Member</label>    
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_CanadianExplorationExpendituresMember" xlink:to="gfr_CanadianExplorationExpendituresMember_lbl0"/>    
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gfr_AccumulatedDepletionDepreciationandAmortizationBalance_lbl2" xml:lang="en-US">Accumulated Depletion Depreciationand Amortization Balance</label>    
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_AccumulatedDepletionDepreciationandAmortizationBalance" xlink:to="gfr_AccumulatedDepletionDepreciationandAmortizationBalance_lbl2"/>   
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gfr_EstimatedFutureUnrecognizedCommitments_lbl1" xml:lang="en-US">Estimated Future Unrecognized Commitments</label> 
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_EstimatedFutureUnrecognizedCommitments" xlink:to="gfr_EstimatedFutureUnrecognizedCommitments_lbl1"/> 
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="dei_EntityCurrentReportingStatus_lbl0" xml:lang="en-US">Entity Current Reporting Status</label> 
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="dei_EntityCurrentReportingStatus" xlink:to="dei_EntityCurrentReportingStatus_lbl0"/> 
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="dei_EntityEmergingGrowthCompany_lbl0" xml:lang="en-US">Entity Emerging Growth Company</label>    
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="dei_EntityEmergingGrowthCompany" xlink:to="dei_EntityEmergingGrowthCompany_lbl0"/>    
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gfr_NumberOfWarrantsOutstandingValue_lbl2" xml:lang="en-US">Number Of Warrants Outstanding Value</label>     
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_NumberOfWarrantsOutstandingValue" xlink:to="gfr_NumberOfWarrantsOutstandingValue_lbl2"/>    
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gfr_NumberOfCommonStockReceivedOnExerciseOfWarrants_lbl1" xml:lang="en-US">Number Of Common Stock Received On Exercise Of Warrants</label>    
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gfr_NumberOfCommonStockReceivedOnExerciseOfWarrants" xlink:to="gfr_NumberOfCommonStockReceivedOnExerciseOfWarrants_lbl1"/>    
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    <loc xlink:type="locator" xlink:label="gfr_ScheduleOfFairValueOfFinancialInstrumentsAbstract" xlink:href="gfr-20251231.xsd#gfr_ScheduleOfFairValueOfFinancialInstrumentsAbstract"/>    
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    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gfr_MinimumHedgingRequirementsPercentage_lbl1" xml:lang="en-US">Minimum Hedging Requirements Percentage</label>  
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    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_ChangesInInventoriesOfFinishedGoodsAndWorkInProgress_lbl0" xml:lang="en-US">Decrease (increase) in inventories of finished goods and work in progress</label>   
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    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gfr_DecommissioningLiabilitiesAcquisitions_lbl1" xml:lang="en-US">Decommissioning Liabilities Acquisitions</label>     
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    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_NoncurrentLeaseLiabilities_lbl1" xml:lang="en-US">Non-current lease liabilities</label>   
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    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_DescriptionOfAccountingPolicyForIncomeTaxExplanatory_lbl0" xml:lang="en-US">Description of accounting policy for income tax [text block]</label>     
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    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_FinancialLiabilitiesAtFairValueThroughProfitOrLossAbstract_lbl0" xml:lang="en-US">Financial liabilities at fair value through profit or loss [abstract]</label>     
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    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_DisclosureOfLeasesExplanatory_lbl0" xml:lang="en-US">Disclosure of leases [text block]</label>     
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    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_GainsLossesOnExchangeDifferencesOnTranslationBeforeTax_lbl0" xml:lang="en-US">Gains (losses) on exchange differences on translation of foreign operations, before tax</label>    
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    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_DisclosureOfFinancialRiskManagementExplanatory_lbl0" xml:lang="en-US">Disclosure of financial risk management [text block]</label> 
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    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_AdjustmentsForIncreaseDecreaseInTradeAndOtherPayables_lbl0" xml:lang="en-US">Adjustments for increase (decrease) in trade and other payables</label>    
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    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_AdjustmentsForSharebasedPayments_lbl0" xml:lang="en-US">Adjustments for share-based payments</label> 
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    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_AdjustmentsForUnrealisedForeignExchangeLossesGains_lbl0" xml:lang="en-US">Adjustments for unrealised foreign exchange losses (gains)</label> 
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    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gfr_LimitCapitalExpenditures_lbl1" xml:lang="en-US">Limit Capital Expenditures</label>  
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    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_DisclosureOfFairValueOfFinancialInstrumentsExplanatory_lbl0" xml:lang="en-US">Disclosure of fair value of financial instruments [text block]</label>    
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