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<!-- Creation Date :2022-12-07T16:14:21.7228+00:00 -->
<!-- Copyright (c) 2022 Donnelly Financial Solutions, Inc. All Rights Reserved. -->
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  <xsd:element id="sgu_MaximumPercentageOfProductPurchases" name="MaximumPercentageOfProductPurchases" type="dtr-types:percentItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/>
  <xsd:element id="sgu_MinimumDistributionOfAvailableCashPerUnit" name="MinimumDistributionOfAvailableCashPerUnit" type="dtr-types:perShareItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/>
  <xsd:element id="sgu_MinimumDividendDistributionPerUnit" name="MinimumDividendDistributionPerUnit" type="dtr-types:perShareItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/>
  <xsd:element id="sgu_MinimumFixedChargeCoverageRatioForDistributionsToUnitholdersOrRepurchaseCommonUnits" name="MinimumFixedChargeCoverageRatioForDistributionsToUnitholdersOrRepurchaseCommonUnits" type="dtr-types:percentItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/>
  <xsd:element id="sgu_MinimumFixedChargeCoverageRatioOnRevolvingCreditFacilities" name="MinimumFixedChargeCoverageRatioOnRevolvingCreditFacilities" type="dtr-types:percentItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/>
  <xsd:element id="sgu_MinimumPercentageOfBorrowingCapacityToPayAnyDistributionsToUnitholdersOrRepurchaseCommonUnits" name="MinimumPercentageOfBorrowingCapacityToPayAnyDistributionsToUnitholdersOrRepurchaseCommonUnits" type="dtr-types:percentItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/>
  <xsd:element id="sgu_MinimumPercentageOfLikelihoodOnGoodwillImpairment" name="MinimumPercentageOfLikelihoodOnGoodwillImpairment" type="dtr-types:percentItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/>
  <xsd:element id="sgu_MultiemployerPlansWithdrawalObligationAnnualInstallmentPayment" name="MultiemployerPlansWithdrawalObligationAnnualInstallmentPayment" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false" xbrli:balance="debit"/>
  <xsd:element id="sgu_MultiemployerPlansWithdrawalUndiscountedObligation" name="MultiemployerPlansWithdrawalUndiscountedObligation" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false" xbrli:balance="credit"/>
  <xsd:element id="sgu_NetActuarialLossBalanceInAccumulatedOtherComprehensiveIncomeToBeAmortized" name="NetActuarialLossBalanceInAccumulatedOtherComprehensiveIncomeToBeAmortized" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false" xbrli:balance="credit"/>
  <xsd:element id="sgu_NumberOfCustomersToWhomOnlyHomeHeatingOilGasolineAndDieselWereSellsOnDeliveryOnlyBasis" name="NumberOfCustomersToWhomOnlyHomeHeatingOilGasolineAndDieselWereSellsOnDeliveryOnlyBasis" type="xbrli:integerItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/>
  <xsd:element id="sgu_NumberOfCustomersToWhomSellGasolineAndDieselFuel" name="NumberOfCustomersToWhomSellGasolineAndDieselFuel" type="xbrli:integerItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/>
  <xsd:element id="sgu_NumberOfDefinedBenefitPensionPlans" name="NumberOfDefinedBenefitPensionPlans" type="xbrli:integerItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false"/>
  <xsd:element id="sgu_NumberOfResidentialAndCommercialHomeHeatingOilAndPropaneCustomersServed" name="NumberOfResidentialAndCommercialHomeHeatingOilAndPropaneCustomersServed" type="xbrli:integerItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/>
  <xsd:element id="sgu_NumberOfServiceContractsForNaturalGasAndOtherHeatingSystems" name="NumberOfServiceContractsForNaturalGasAndOtherHeatingSystems" type="xbrli:integerItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/>
  <xsd:element id="sgu_OperatingLeaseExpirationYear" name="OperatingLeaseExpirationYear" type="xbrli:gYearItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/>
  <xsd:element id="sgu_OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansObligationTax" name="OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansObligationTax" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" xbrli:balance="credit"/>
  <xsd:element id="sgu_PartnersCapitalProjectedDistributionAmountOnAnnualizedBasisPerShare" name="PartnersCapitalProjectedDistributionAmountOnAnnualizedBasisPerShare" type="dtr-types:perShareItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false"/>
  <xsd:element id="sgu_PaymentsOfCustomerRetainage" name="PaymentsOfCustomerRetainage" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" xbrli:balance="credit"/>
  <xsd:element id="sgu_PercentageOfCustomersReceivingDeliveriesBasedOnPrevailingWeatherConditions" name="PercentageOfCustomersReceivingDeliveriesBasedOnPrevailingWeatherConditions" type="dtr-types:percentItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/>
  <xsd:element id="sgu_PercentageOfCustomersTakeAdvantageOfSmartPayBudgetPaymentPlan" name="PercentageOfCustomersTakeAdvantageOfSmartPayBudgetPaymentPlan" type="dtr-types:percentItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/>
  <xsd:element id="sgu_PercentageOfExcessAvailabilityOfRevolvingCommitmentThatMustBeMaintained" name="PercentageOfExcessAvailabilityOfRevolvingCommitmentThatMustBeMaintained" type="dtr-types:percentItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/>
  <xsd:element id="sgu_PercentageOfProductPurchases" name="PercentageOfProductPurchases" type="dtr-types:percentItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/>
  <xsd:element id="sgu_ProceedsFromSaleOfPlumbingAndPropaneAssets" name="ProceedsFromSaleOfPlumbingAndPropaneAssets" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" xbrli:balance="debit"/>
  <xsd:element id="sgu_RatePensionPlanAssetsExpectToEarn" name="RatePensionPlanAssetsExpectToEarn" type="dtr-types:percentItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/>
  <xsd:element id="sgu_RecognitionOfUnmotizedDeferredLiabilities" name="RecognitionOfUnmotizedDeferredLiabilities" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" xbrli:balance="credit"/>
  <xsd:element id="sgu_RedZoneMultiemployerPlansFundedPercentage" name="RedZoneMultiemployerPlansFundedPercentage" type="dtr-types:percentItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/>
  <xsd:element id="sgu_RevenueFromServiceContractsPeriodOfRecognition" name="RevenueFromServiceContractsPeriodOfRecognition" type="xbrli:durationItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/>
  <xsd:element id="sgu_RightToReceivePaymentUnderWeatherHedgeContract" name="RightToReceivePaymentUnderWeatherHedgeContract" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" xbrli:balance="debit"/>
  <xsd:element id="sgu_SecondTierPercentageOfAvailableCashDistributionToCommonUnitsForAnyArrearages" name="SecondTierPercentageOfAvailableCashDistributionToCommonUnitsForAnyArrearages" type="dtr-types:percentItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/>
  <xsd:element id="sgu_TaxCutsAndJobsActPercentageOfDepreciationForFixedAssets" name="TaxCutsAndJobsActPercentageOfDepreciationForFixedAssets" type="dtr-types:percentItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/>
  <xsd:element id="sgu_ThereafterPercentageOfDistributionsToCommonUnitHoldersAfterFirstTargetDistributionIsMet" name="ThereafterPercentageOfDistributionsToCommonUnitHoldersAfterFirstTargetDistributionIsMet" type="dtr-types:percentItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/>
  <xsd:element id="sgu_ThereafterPercentageOfDistributionsToGeneralPartnerUnitHoldersAfterFirstTargetDistributionIsMet" name="ThereafterPercentageOfDistributionsToGeneralPartnerUnitHoldersAfterFirstTargetDistributionIsMet" type="dtr-types:percentItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/>
  <xsd:element id="sgu_ThirdTierPercentageOfAvailableCashDistributionToGeneralPartnerUnit" name="ThirdTierPercentageOfAvailableCashDistributionToGeneralPartnerUnit" type="dtr-types:percentItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/>
  <xsd:element id="sgu_YellowZoneMultiemployerPlansFundedPercentage" name="YellowZoneMultiemployerPlansFundedPercentage" type="dtr-types:percentItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/>
  <xsd:element id="sgu_FairValuesOfFinancialAssetsAndLiabilitiesIncludingDerivativeFinancialInstrumentsLineItems" name="FairValuesOfFinancialAssetsAndLiabilitiesIncludingDerivativeFinancialInstrumentsLineItems" type="xbrli:stringItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="sgu_IncomeTaxDisclosureLineItems" name="IncomeTaxDisclosureLineItems" type="xbrli:stringItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="sgu_RevenueRecognitionLineItems" name="RevenueRecognitionLineItems" type="xbrli:stringItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="sgu_ScheduleOfSignificantAccountingPoliciesLineItems" name="ScheduleOfSignificantAccountingPoliciesLineItems" type="xbrli:stringItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="sgu_AcquiredBusinessMember" name="AcquiredBusinessMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="sgu_AllOtherMultiemployerPensionPlansMember" name="AllOtherMultiemployerPensionPlansMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="sgu_AnnuallyMember" name="AnnuallyMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="sgu_BillableCallServicesMember" name="BillableCallServicesMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="sgu_BuildingAndLeaseholdImprovementsMember" name="BuildingAndLeaseholdImprovementsMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="sgu_CashAndReceivablesMember" name="CashAndReceivablesMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="sgu_CommonStockRepurchaseProgramMember" name="CommonStockRepurchaseProgramMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="sgu_CommonStockRepurchaseProgramUnderOpenMarketMember" name="CommonStockRepurchaseProgramUnderOpenMarketMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="sgu_CommonStockRepurchaseProgramUnderPrivatelyNegotiatedMember" name="CommonStockRepurchaseProgramUnderPrivatelyNegotiatedMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="sgu_ContractRenewalMember" name="ContractRenewalMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="sgu_CoronavirusAidReliefAndEconomicSecurityActMember" name="CoronavirusAidReliefAndEconomicSecurityActMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="sgu_CostOfInstallationsAndServicesMember" name="CostOfInstallationsAndServicesMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="sgu_CostOfProductMember" name="CostOfProductMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="sgu_CostOfServicesMember" name="CostOfServicesMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="sgu_CreditAgreementMember" name="CreditAgreementMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="sgu_DeferredChargesAndOtherAssetsNetAndOtherLongTermLiabilitiesNetMember" name="DeferredChargesAndOtherAssetsNetAndOtherLongTermLiabilitiesNetMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="sgu_DeliveryAndBranchExpensesMember" name="DeliveryAndBranchExpensesMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="sgu_DerivativeFairValueOfDerivativeAssetMember" name="DerivativeFairValueOfDerivativeAssetMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="sgu_DerivativeFairValueOfDerivativeLiabilityMember" name="DerivativeFairValueOfDerivativeLiabilityMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="sgu_DieselAndGasolineMember" name="DieselAndGasolineMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="sgu_DomesticEquitiesMember" name="DomesticEquitiesMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="sgu_DomesticFixedIncomeSecurityMember" name="DomesticFixedIncomeSecurityMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="sgu_EmployeesAndConsultantsMember" name="EmployeesAndConsultantsMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="sgu_EquipmentInstallationsMember" name="EquipmentInstallationsMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="sgu_EquipmentMaintenanceServiceContractsMember" name="EquipmentMaintenanceServiceContractsMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="sgu_FederalMember" name="FederalMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="sgu_FifthAmendmentMember" name="FifthAmendmentMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="sgu_FinancialProductsCorporationMember" name="FinancialProductsCorporationMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="sgu_Fiscal2019AcquisitionMember" name="Fiscal2019AcquisitionMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="sgu_FleetAndOtherEquipmentMember" name="FleetAndOtherEquipmentMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="sgu_ForeignBondsAndNotesMember" name="ForeignBondsAndNotesMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="sgu_FrozenDefinedBenefitPensionPlansMember" name="FrozenDefinedBenefitPensionPlansMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="sgu_GlobalCompaniesLLCMember" name="GlobalCompaniesLLCMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="sgu_HeatingOilDealersMember" name="HeatingOilDealersMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="sgu_HomeHeatingOilAndPropaneMember" name="HomeHeatingOilAndPropaneMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="sgu_IAMNationalPensionFundMember" name="IAMNationalPensionFundMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="sgu_InstallationAndServicesMember" name="InstallationAndServicesMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="sgu_InternalFuelUsageCallAndSwapContractMember" name="InternalFuelUsageCallAndSwapContractMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="sgu_InternationalEquityMember" name="InternationalEquityMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="sgu_LargeCapEquitiesMember" name="LargeCapEquitiesMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="sgu_LiquidProductDealersMember" name="LiquidProductDealersMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="sgu_LocalFiveHundredAndFiftyThreePensionFundMember" name="LocalFiveHundredAndFiftyThreePensionFundMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="sgu_LocalFourHundredAndFortyFivePensionFundMember" name="LocalFourHundredAndFortyFivePensionFundMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="sgu_LocalFourHundredAndSixtyThreePensionFundMember" name="LocalFourHundredAndSixtyThreePensionFundMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="sgu_LongTermDerivativeAssetsMember" name="LongTermDerivativeAssetsMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="sgu_ManagementAndGeneralPartnerMember" name="ManagementAndGeneralPartnerMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="sgu_ManagementIncentiveCompensationPlanMember" name="ManagementIncentiveCompensationPlanMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="sgu_MotivaEnterprisesLLCMember" name="MotivaEnterprisesLLCMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="sgu_MotorFuelAndOtherPetroleumProductsMember" name="MotorFuelAndOtherPetroleumProductsMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="sgu_MultiemployerPensionPlansMember" name="MultiemployerPensionPlansMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="sgu_NonEmployeesMember" name="NonEmployeesMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="sgu_OperatingCostsAndExpensesMember" name="OperatingCostsAndExpensesMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="sgu_OperatingLeaseObligationsMember" name="OperatingLeaseObligationsMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="sgu_OperatingLeaseRightUseOfAssetsMember" name="OperatingLeaseRightUseOfAssetsMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="sgu_PrivateTransactionMember" name="PrivateTransactionMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="sgu_PropaneDealerMember" name="PropaneDealerMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="sgu_PubliclyAnnouncedPlansOrProgramsAsPartOfCommonStockRepurchaseProgramMember" name="PubliclyAnnouncedPlansOrProgramsAsPartOfCommonStockRepurchaseProgramMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="sgu_QuarterlyMember" name="QuarterlyMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="sgu_ResidentialAndCommercialHomeHeatingOilCustomersMember" name="ResidentialAndCommercialHomeHeatingOilCustomersMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="sgu_ResidentialCustomersMember" name="ResidentialCustomersMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="sgu_ShellOilCompanyMember" name="ShellOilCompanyMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="sgu_SixthAmendmentMember" name="SixthAmendmentMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="sgu_StarGroupLPMember" name="StarGroupLPMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="sgu_SubjectToMasterNettingArrangementMember" name="SubjectToMasterNettingArrangementMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="sgu_SubsidiariesTwoMember" name="SubsidiariesTwoMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="sgu_SwapContractOneMember" name="SwapContractOneMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="sgu_SwapContractsMember" name="SwapContractsMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="sgu_TanksAndEquipmentMember" name="TanksAndEquipmentMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="sgu_TeamstersLocalFourHundredAndSixtyNinePensionPlanMember" name="TeamstersLocalFourHundredAndSixtyNinePensionPlanMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="sgu_TermLoanMember" name="TermLoanMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="sgu_TradeNamesAndOtherIntangiblesMember" name="TradeNamesAndOtherIntangiblesMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="sgu_WestchesterTeamstersPensionFundMember" name="WestchesterTeamstersPensionFundMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="sgu_FairValuesOfFinancialAssetsAndLiabilitiesIncludingDerivativeFinancialInstrumentsTable" name="FairValuesOfFinancialAssetsAndLiabilitiesIncludingDerivativeFinancialInstrumentsTable" type="xbrli:stringItemType" substitutionGroup="xbrldt:hypercubeItem" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="sgu_IncomeTaxDisclosureTable" name="IncomeTaxDisclosureTable" type="xbrli:stringItemType" substitutionGroup="xbrldt:hypercubeItem" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="sgu_RevenueRecognitionTable" name="RevenueRecognitionTable" type="xbrli:stringItemType" substitutionGroup="xbrldt:hypercubeItem" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="sgu_ScheduleOfSignificantAccountingPoliciesTable" name="ScheduleOfSignificantAccountingPoliciesTable" type="xbrli:stringItemType" substitutionGroup="xbrldt:hypercubeItem" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="sgu_AllocationOfNetIncomeLossPolicyTextBlock" name="AllocationOfNetIncomeLossPolicyTextBlock" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/>
  <xsd:element id="sgu_AssetsHeldForSalePolicyTextBlock" name="AssetsHeldForSalePolicyTextBlock" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/>
  <xsd:element id="sgu_BasisOfPresentationPolicyPolicyTextBlock" name="BasisOfPresentationPolicyPolicyTextBlock" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/>
  <xsd:element id="sgu_CashAccountsReceivableRevolvingCreditFacilityBorrowingsAndAccountsPayablePolicyTextBlock" name="CashAccountsReceivableRevolvingCreditFacilityBorrowingsAndAccountsPayablePolicyTextBlock" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/>
  <xsd:element id="sgu_CostOfInstallationsAndServicePolicyTextBlock" name="CostOfInstallationsAndServicePolicyTextBlock" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/>
  <xsd:element id="sgu_CustomerCreditBalancesPolicyTextBlock" name="CustomerCreditBalancesPolicyTextBlock" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/>
  <xsd:element id="sgu_DefinedBenefitPlanNetPeriodicBenefitCostFairValueOfPlanAssetsProjectedBenefitObligationAndOtherComprehensiveIncomeTableTextBlock" name="DefinedBenefitPlanNetPeriodicBenefitCostFairValueOfPlanAssetsProjectedBenefitObligationAndOtherComprehensiveIncomeTableTextBlock" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/>
  <xsd:element id="sgu_DefinedBenefitPlanWeightedAverageAssetFairValueAndPercentageAllocationsTableTextBlock" name="DefinedBenefitPlanWeightedAverageAssetFairValueAndPercentageAllocationsTableTextBlock" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/>
  <xsd:element id="sgu_DeliveryAndBranchExpensesPolicyTextBlock" name="DeliveryAndBranchExpensesPolicyTextBlock" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/>
  <xsd:element id="sgu_DerivativesAndHedgingDisclosuresAndFairValueMeasurementsPolicyTextBlock" name="DerivativesAndHedgingDisclosuresAndFairValueMeasurementsPolicyTextBlock" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/>
  <xsd:element id="sgu_DescriptionOfNewAccountingPronouncementsNotYetAdoptedPolicyTextBlock" name="DescriptionOfNewAccountingPronouncementsNotYetAdoptedPolicyTextBlock" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/>
  <xsd:element id="sgu_FinanceChargeIncomePolicyPolicyTextBlock" name="FinanceChargeIncomePolicyPolicyTextBlock" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/>
  <xsd:element id="sgu_InsuranceReservesPolicyTextBlock" name="InsuranceReservesPolicyTextBlock" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/>
  <xsd:element id="sgu_OffsettingAssetsLiabilitiesTableTextBlock" name="OffsettingAssetsLiabilitiesTableTextBlock" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/>
  <xsd:element id="sgu_OperatingLeaseRightOfUseAssetsAndRelatedLeaseLiabilitiesPolicyTextBlock" name="OperatingLeaseRightOfUseAssetsAndRelatedLeaseLiabilitiesPolicyTextBlock" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/>
  <xsd:element id="sgu_OtherIncomeLossNetPolicyTextBlock" name="OtherIncomeLossNetPolicyTextBlock" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/>
  <xsd:element id="sgu_PartnershipsRepurchaseActivitiesTableTextBlock" name="PartnershipsRepurchaseActivitiesTableTextBlock" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/>
  <xsd:element id="sgu_QuarterlyDistributionOfAvailableCashTextBlock" name="QuarterlyDistributionOfAvailableCashTextBlock" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/>
  <xsd:element id="sgu_SalesUseAndValueAddedTaxesPolicyTextBlock" name="SalesUseAndValueAddedTaxesPolicyTextBlock" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/>
  <xsd:element id="sgu_ScheduleOfLeaseCostAndOtherInformationTableTextBlock" name="ScheduleOfLeaseCostAndOtherInformationTableTextBlock" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/>
  <xsd:element id="sgu_ScheduleOfNetIncomeAllocationAndPerUnitDataTableTextBlock" name="ScheduleOfNetIncomeAllocationAndPerUnitDataTableTextBlock" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/>
  <xsd:element id="sgu_WeatherHedgeContractPolicyPolicyTextBlock" name="WeatherHedgeContractPolicyPolicyTextBlock" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/>
</xsd:schema>
