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  <xsd:element name="IncreaseDecreaseInLicenseFeesPayable" id="ung_IncreaseDecreaseInLicenseFeesPayable" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element name="PaymentsToPartnershipRedemption" id="ung_PaymentsToPartnershipRedemption" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:balance="credit" xbrli:periodType="duration" />
  <xsd:element name="EquityInTradingAccountsAbstract" id="ung_EquityInTradingAccountsAbstract" type="xbrli:stringItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="CashAndCashEquivalentsInEquityInTradingAccounts" id="ung_CashAndCashEquivalentsInEquityInTradingAccounts" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:balance="debit" xbrli:periodType="instant" abstract="false" />
  <xsd:element name="FeesPaidByFundAndRelatedPartyTransactionsAbstract" id="ung_FeesPaidByFundAndRelatedPartyTransactionsAbstract" type="xbrli:stringItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="FeesPaidAndRelatedPartyTransactionsDisclosureTextBlock" id="ung_FeesPaidAndRelatedPartyTransactionsDisclosureTextBlock" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="FinancialInstrumentsOffBalanceSheetRisksAndContingenciesAbstract" id="ung_FinancialInstrumentsOffBalanceSheetRisksAndContingenciesAbstract" type="xbrli:stringItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="OtherSignificantAccountingAndReportingPoliciesPolicyTextBlock" id="ung_OtherSignificantAccountingAndReportingPoliciesPolicyTextBlock" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="BrokerageCommissionsTableTextBlock" id="ung_BrokerageCommissionsTableTextBlock" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" />
  <xsd:element name="PerUnitPerformanceDataAndOtherSupplementalFinancialDataTableTextBlock" id="ung_PerUnitPerformanceDataAndOtherSupplementalFinancialDataTableTextBlock" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" />
  <xsd:element name="OrganizationConsolidationAndPresentationOfFinancialStatementsDisclosureTable" id="ung_OrganizationConsolidationAndPresentationOfFinancialStatementsDisclosureTable" type="xbrli:stringItemType" substitutionGroup="xbrldt:hypercubeItem" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="CreationBasketsMember" id="ung_CreationBasketsMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="RedemptionBasketsMember" id="ung_RedemptionBasketsMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="OrganizationConsolidationAndPresentationOfFinancialStatementsDisclosureLineItems" id="ung_OrganizationConsolidationAndPresentationOfFinancialStatementsDisclosureLineItems" type="xbrli:stringItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="FeePaidPerOrder" id="ung_FeePaidPerOrder" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" />
  <xsd:element name="NumberOfUnitsRegisteredInPeriod" id="ung_NumberOfUnitsRegisteredInPeriod" type="xbrli:sharesItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="UnitsIssuedDuringPeriodUnitsNewIssues" id="ung_UnitsIssuedDuringPeriodUnitsNewIssues" type="xbrli:sharesItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="UnitsIssuedDuringPeriodValueNewIssues" id="ung_UnitsIssuedDuringPeriodValueNewIssues" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:balance="credit" xbrli:periodType="duration" />
  <xsd:element name="NumberOfRegisteredUnits" id="ung_NumberOfRegisteredUnits" type="xbrli:sharesItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:periodType="instant" />
  <xsd:element name="SignificantAccountingPoliciesTable" id="ung_SignificantAccountingPoliciesTable" type="xbrli:stringItemType" substitutionGroup="xbrldt:hypercubeItem" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="SignificantAccountingPoliciesLineItems" id="ung_SignificantAccountingPoliciesLineItems" type="xbrli:stringItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="FeesPaidAndRelatedPartyTransactionsTable" id="ung_FeesPaidAndRelatedPartyTransactionsTable" type="xbrli:stringItemType" substitutionGroup="xbrldt:hypercubeItem" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="UnitedStatesOilFundLimitedPartnershipMember" id="ung_UnitedStatesOilFundLimitedPartnershipMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="FundTrustsMember" id="ung_FundTrustsMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="UnitedStatesNaturalGasMember" id="ung_UnitedStatesNaturalGasMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="FeesPaidAndRelatedPartyTransactionsLineItems" id="ung_FeesPaidAndRelatedPartyTransactionsLineItems" type="xbrli:stringItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="BaseFeePercentage" id="ung_BaseFeePercentage" type="dtr-types:percentItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="RegistrationFeesAndOtherOfferingExpenses" id="ung_RegistrationFeesAndOtherOfferingExpenses" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element name="RebalancingInvestmentsTransactionMember" id="ung_RebalancingInvestmentsTransactionMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="TradesNecessitatedByCreationAndRedemptionActivityMember" id="ung_TradesNecessitatedByCreationAndRedemptionActivityMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="PercentageOfAverageDailyNetAssets" id="ung_PercentageOfAverageDailyNetAssets" type="dtr-types:percentItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:periodType="instant" />
  <xsd:element name="MarketingAgreementMember" id="ung_MarketingAgreementMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="GroupThreeMember" id="ung_GroupThreeMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="GroupFourMember" id="ung_GroupFourMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="BasisAmountForFeePercentage" id="ung_BasisAmountForFeePercentage" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:balance="credit" xbrli:periodType="instant" />
  <xsd:element name="CommissionsPaid" id="ung_CommissionsPaid" type="srt-types:perUnitItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="TotalIncomeLossPerUnit" id="ung_TotalIncomeLossPerUnit" type="dtr-types:perShareItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="TotalExpensesPerUnit" id="ung_TotalExpensesPerUnit" type="dtr-types:perShareItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="IncreaseDecreaseInNetAssetValuePerUnit" id="ung_IncreaseDecreaseInNetAssetValuePerUnit" type="dtr-types:perShareItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="RateOfReturnOnAverageAsset" id="ung_RateOfReturnOnAverageAsset" type="dtr-types:percentItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" />
  <xsd:element name="AverageNetAssetsAbstract" id="ung_AverageNetAssetsAbstract" type="xbrli:stringItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="PercentageOfTotalRevenue" id="ung_PercentageOfTotalRevenue" type="dtr-types:percentItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="ManagementIncentiveFeePercentage" id="ung_ManagementIncentiveFeePercentage" type="dtr-types:percentItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="PercentageOfConsolidatedNetIncomeLoss" id="ung_PercentageOfConsolidatedNetIncomeLoss" type="dtr-types:percentItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="UnitedStatesContractsMember" id="ung_UnitedStatesContractsMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="CashAndCashEquivalentsEquityInTradingAccounts" id="ung_CashAndCashEquivalentsEquityInTradingAccounts" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:balance="debit" xbrli:periodType="instant" abstract="false" />
  <xsd:element name="BaseFeeAmountMaximumAverageDailyTotalNetAssetsOf1000000000BaseFeePercentage" id="ung_BaseFeeAmountMaximumAverageDailyTotalNetAssetsOf1000000000BaseFeePercentage" type="xbrli:pureItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="AssetsUnderManagementAverageDailyBalanceBaseAmountForFeePercentage" id="ung_AssetsUnderManagementAverageDailyBalanceBaseAmountForFeePercentage" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:balance="debit" xbrli:periodType="instant" />
  <xsd:element name="BaseFeeAmountGreaterThanAverageDailyTotalNetAssetsOf1000000000BaseFeePercentage" id="ung_BaseFeeAmountGreaterThanAverageDailyTotalNetAssetsOf1000000000BaseFeePercentage" type="xbrli:pureItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="IncreaseDecreaseInPrepaidInsuranceOperatingActivities" id="ung_IncreaseDecreaseInPrepaidInsuranceOperatingActivities" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:balance="credit" xbrli:periodType="duration" />
  <xsd:element name="PrepaidInsuranceCurrentAndNonCurrent" id="ung_PrepaidInsuranceCurrentAndNonCurrent" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:balance="debit" xbrli:periodType="instant" />
  <xsd:element name="ReceivableForSharesSold" id="ung_ReceivableForSharesSold" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:balance="debit" xbrli:periodType="instant" />
  <xsd:element name="CashAndCashEquivalentsInTradingAccounts" id="ung_CashAndCashEquivalentsInTradingAccounts" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:balance="debit" xbrli:periodType="instant" abstract="false" />
  <xsd:element name="NumberOfSuccessiveValuationDays" id="ung_NumberOfSuccessiveValuationDays" type="xbrli:durationItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="AverageDailyPercentageChangeInPriceOfBenchmarkFuturesContractConsidered" id="ung_AverageDailyPercentageChangeInPriceOfBenchmarkFuturesContractConsidered" type="dtr-types:percentItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="OpenCommodityFuturesContractsLongMember" id="ung_OpenCommodityFuturesContractsLongMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="TotalExpensesExcludingManagementFeesPercent" id="ung_TotalExpensesExcludingManagementFeesPercent" type="dtr-types:percentItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" />
  <xsd:element name="GoldmanSachsFinancialSquareGovernmentFundInstitutionalSharesMember" id="ung_GoldmanSachsFinancialSquareGovernmentFundInstitutionalSharesMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="MorganStanleyInstitutionalLiquidityFundsGovernmentPortfolioInstitutionalSharesMember" id="ung_MorganStanleyInstitutionalLiquidityFundsGovernmentPortfolioInstitutionalSharesMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="RbcU.s.GovernmentMoneyMarketFundInstitutionalSharesMember" id="ung_RbcU.s.GovernmentMoneyMarketFundInstitutionalSharesMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="NymexNaturalGasFuturesNgFebruary2022ContractsExpiringJanuary2022Member" id="ung_NymexNaturalGasFuturesNgFebruary2022ContractsExpiringJanuary2022Member" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="IncreaseDecreaseInDirectorsFeesPayable" id="ung_IncreaseDecreaseInDirectorsFeesPayable" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" xbrli:balance="debit" />
  <xsd:element name="InterestIncomeMaximumPercentageOfPaidInKind" id="ung_InterestIncomeMaximumPercentageOfPaidInKind" type="dtr-types:percentItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" />
  <xsd:element name="FinancialsHighlightsAbstract" id="ung_FinancialsHighlightsAbstract" type="xbrli:stringItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="FlatFeesPaid" id="ung_FlatFeesPaid" type="dtr-types:percentItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" abstract="false" />
  <xsd:element name="NumberOfUnitsPerBasket" id="ung_NumberOfUnitsPerBasket" type="xbrli:sharesItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" abstract="false" />
  <xsd:element name="CashDepositsAndInvestmentsInTreasuries" id="ung_CashDepositsAndInvestmentsInTreasuries" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" abstract="false" xbrli:balance="debit" />
  <xsd:element name="NetAssetValuePolicyTextBlock" id="ung_NetAssetValuePolicyTextBlock" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" />
  <xsd:element name="OtherOperatingIncomeExpensePolicyTextBlock" id="ung_OtherOperatingIncomeExpensePolicyTextBlock" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" />
  <xsd:element name="PercentageOfTotalNetAssets" id="ung_PercentageOfTotalNetAssets" type="dtr-types:percentItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" />
  <xsd:element name="StockholdersEquityNoteStockSplitReverseConversionRatio" id="ung_StockholdersEquityNoteStockSplitReverseConversionRatio" type="xbrli:pureItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" />
  <xsd:element name="FairValueOfFinancialInstrumentsTable" id="ung_FairValueOfFinancialInstrumentsTable" type="xbrli:stringItemType" substitutionGroup="xbrldt:hypercubeItem" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="FairValueOfFinancialInstrumentsLineItems" id="ung_FairValueOfFinancialInstrumentsLineItems" type="xbrli:stringItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="ContractsAndAgreementsTable" id="ung_ContractsAndAgreementsTable" type="xbrli:stringItemType" substitutionGroup="xbrldt:hypercubeItem" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="ContractsAndAgreementsLineItems" id="ung_ContractsAndAgreementsLineItems" type="xbrli:stringItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="NymexNaturalGasFuturesNgFebruary2023ContractsExpiringJanuary2023Member" id="ung_NymexNaturalGasFuturesNgFebruary2023ContractsExpiringJanuary2023Member" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
</xsd:schema>
