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      </link:roleType>
    </xsd:appinfo>
  </xsd:annotation>
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  <xsd:element abstract="true" id="slng_AmendedAndRestated2019LongTermIncentivePlanMember" name="AmendedAndRestated2019LongTermIncentivePlanMember" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:domainItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="slng_AmeriStateBankMember" name="AmeriStateBankMember" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:domainItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="slng_BaojiOilfieldMachineryCoLtdMember" name="BaojiOilfieldMachineryCoLtdMember" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:domainItemType" xbrli:periodType="duration"/>
  <xsd:element id="slng_BasisOfPresentationAndConsolidationPolicyTextBlock" name="BasisOfPresentationAndConsolidationPolicyTextBlock" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:textBlockItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="slng_BomayMember" name="BomayMember" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:domainItemType" xbrli:periodType="duration"/>
  <xsd:element id="slng_BusinessDescriptionPolicyTextBlock" name="BusinessDescriptionPolicyTextBlock" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:textBlockItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="slng_CadenceBankMember" name="CadenceBankMember" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:domainItemType" xbrli:periodType="duration"/>
  <xsd:element id="slng_CashSettlementsFromDerivatives" name="CashSettlementsFromDerivatives" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="slng_ChartEcMember" name="ChartEcMember" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:domainItemType" xbrli:periodType="duration"/>
  <xsd:element id="slng_CommonStockOwnershipPercentage" name="CommonStockOwnershipPercentage" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:percentItemType" xbrli:periodType="instant"/>
  <xsd:element id="slng_ConsultingAgreementMonthlyPayment" name="ConsultingAgreementMonthlyPayment" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="instant"/>
  <xsd:element abstract="true" id="slng_CustomerOneMember" name="CustomerOneMember" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:domainItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="slng_CustomerTwoMember" name="CustomerTwoMember" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:domainItemType" xbrli:periodType="duration"/>
  <xsd:element id="slng_DebtInstrumentCovenantDebtServiceCoverageRatioMaximum" name="DebtInstrumentCovenantDebtServiceCoverageRatioMaximum" nillable="true" substitutionGroup="xbrli:item" type="xbrli:pureItemType" xbrli:periodType="instant"/>
  <xsd:element id="slng_DebtInstrumentCovenantDebtonetworthRatio" name="DebtInstrumentCovenantDebtonetworthRatio" nillable="true" substitutionGroup="xbrli:item" type="xbrli:pureItemType" xbrli:periodType="instant"/>
  <xsd:element id="slng_DeferredTaxAssetsDifferenceInCompensationExpenseFromStockOptions" name="DeferredTaxAssetsDifferenceInCompensationExpenseFromStockOptions" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="instant"/>
  <xsd:element id="slng_DeferredTaxLiabilitiesBasisInForeignEntity" name="DeferredTaxLiabilitiesBasisInForeignEntity" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="instant"/>
  <xsd:element abstract="true" id="slng_DocumentAndEntityInformation" name="DocumentAndEntityInformation" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element id="slng_EquityIncomeForeignJointVentureNet" name="EquityIncomeForeignJointVentureNet" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration"/>
  <xsd:element id="slng_EquityMethodInvestmentAccumulatedAccretion" name="EquityMethodInvestmentAccumulatedAccretion" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="instant"/>
  <xsd:element id="slng_EquityMethodInvestmentNetRemainingBasisDifference" name="EquityMethodInvestmentNetRemainingBasisDifference" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="instant"/>
  <xsd:element id="slng_EquityMethodInvestmentRemainingLifeOfJointVenture" name="EquityMethodInvestmentRemainingLifeOfJointVenture" nillable="true" substitutionGroup="xbrli:item" type="xbrli:durationItemType" xbrli:periodType="duration"/>
  <xsd:element id="slng_EquityMethodInvestmentSummarizedFinancialInformationAccumulatedStatutoryReserve" name="EquityMethodInvestmentSummarizedFinancialInformationAccumulatedStatutoryReserve" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="instant"/>
  <xsd:element id="slng_EquityMethodInvestmentTranslationAdjustment" name="EquityMethodInvestmentTranslationAdjustment" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration"/>
  <xsd:element id="slng_FinanceLeaseAndOperatingLeaseLiabilityCurrent" name="FinanceLeaseAndOperatingLeaseLiabilityCurrent" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="instant"/>
  <xsd:element id="slng_FinanceLeaseLiabilityIncludingRelatedPartiesCurrent" name="FinanceLeaseLiabilityIncludingRelatedPartiesCurrent" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="instant"/>
  <xsd:element id="slng_FinanceLeaseLiabilityToBePaidAfterYearTwo" name="FinanceLeaseLiabilityToBePaidAfterYearTwo" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="instant"/>
  <xsd:element abstract="true" id="slng_FiveCustomersMember" name="FiveCustomersMember" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:domainItemType" xbrli:periodType="duration"/>
  <xsd:element id="slng_ForeignCurrencyTranslation" name="ForeignCurrencyTranslation" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="instant"/>
  <xsd:element id="slng_IncomeLossFromContinuingOperationsBeforeNonoperatingIncomeExpenseIncomeTaxesNoncontrollingInterest" name="IncomeLossFromContinuingOperationsBeforeNonoperatingIncomeExpenseIncomeTaxesNoncontrollingInterest" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration"/>
  <xsd:element id="slng_IncomeLossFromEquityMethodInvestmentsInUndistributedEarnings" name="IncomeLossFromEquityMethodInvestmentsInUndistributedEarnings" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="slng_InsuranceAndOtherNotePayableMember" name="InsuranceAndOtherNotePayableMember" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:domainItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="slng_InsuranceNotesMember" name="InsuranceNotesMember" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:domainItemType" xbrli:periodType="duration"/>
  <xsd:element id="slng_LeaseLiability" name="LeaseLiability" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="instant"/>
  <xsd:element id="slng_LeaseLiabilityPaymentsDue" name="LeaseLiabilityPaymentsDue" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="instant"/>
  <xsd:element id="slng_LeaseLiabilityPaymentsDueNextTwelveMonths" name="LeaseLiabilityPaymentsDueNextTwelveMonths" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="instant"/>
  <xsd:element id="slng_LeaseLiabilityPaymentsDueYearTwo" name="LeaseLiabilityPaymentsDueYearTwo" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="instant"/>
  <xsd:element id="slng_LeaseLiabilityToBePaidAfterYearTwo" name="LeaseLiabilityToBePaidAfterYearTwo" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="instant"/>
  <xsd:element id="slng_LeaseLiabilityUndiscountedExcessAmount" name="LeaseLiabilityUndiscountedExcessAmount" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="instant"/>
  <xsd:element id="slng_LeaseMonthlyRentPayment" name="LeaseMonthlyRentPayment" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="instant"/>
  <xsd:element id="slng_LeaseRightOfUseAsset" name="LeaseRightOfUseAsset" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="instant"/>
  <xsd:element id="slng_LesseeOperatingLeaseLiabilityToBePaidAfterYearTwo" name="LesseeOperatingLeaseLiabilityToBePaidAfterYearTwo" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="instant"/>
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  <xsd:element abstract="true" id="slng_LiquefactionPlantsAndSystemsMember" name="LiquefactionPlantsAndSystemsMember" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:domainItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="slng_LoanAgreementMember" name="LoanAgreementMember" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:domainItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="slng_MGFinanceCoLtdMember" name="MGFinanceCoLtdMember" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:domainItemType" xbrli:periodType="duration"/>
  <xsd:element id="slng_MinimumNetWorthRequiredForComplianceIncreasePercentage" name="MinimumNetWorthRequiredForComplianceIncreasePercentage" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:percentItemType" xbrli:periodType="instant"/>
  <xsd:element abstract="true" id="slng_NonEmployeeBoardMemberMember" name="NonEmployeeBoardMemberMember" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:domainItemType" xbrli:periodType="duration"/>
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  <xsd:element abstract="true" id="slng_NotesToFinancialStatements" name="NotesToFinancialStatements" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="slng_NotesToFinancialStatementsAbstract" name="NotesToFinancialStatementsAbstract" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element id="slng_OperatingLossCarryforwardsNotEligibleToOffsetFutureIncome" name="OperatingLossCarryforwardsNotEligibleToOffsetFutureIncome" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="instant"/>
  <xsd:element id="slng_OperatingLossCarryforwardsSubjectToExpiration" name="OperatingLossCarryforwardsSubjectToExpiration" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="instant"/>
  <xsd:element id="slng_OperationsRelatedExpenseForeignJointVenture" name="OperationsRelatedExpenseForeignJointVenture" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="slng_ParticipantMember" name="ParticipantMember" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:domainItemType" xbrli:periodType="duration"/>
  <xsd:element id="slng_PrepaidExpensesAndOtherCurrentAssetsTextBlock" name="PrepaidExpensesAndOtherCurrentAssetsTextBlock" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:textBlockItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="slng_RealPropertyAndBuildingsMember" name="RealPropertyAndBuildingsMember" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:domainItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="slng_ReclassificationFromAccruedExpensesToAccountsPayableMember" name="ReclassificationFromAccruedExpensesToAccountsPayableMember" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:domainItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="slng_RentalMember" name="RentalMember" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:domainItemType" xbrli:periodType="duration"/>
  <xsd:element id="slng_RepaymentsOfShorttermAndLongtermNotesPayable" name="RepaymentsOfShorttermAndLongtermNotesPayable" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="slng_RestrictedStockUnitsRsusTreasuryStockMethodMember" name="RestrictedStockUnitsRsusTreasuryStockMethodMember" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:domainItemType" xbrli:periodType="duration"/>
  <xsd:element id="slng_RightOfUseAssetsAndOtherAssetsNoncurrent" name="RightOfUseAssetsAndOtherAssetsNoncurrent" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="instant"/>
  <xsd:element id="slng_ScheduleOfActivityInInvestmentInForeignJointVenturesTableTextBlock" name="ScheduleOfActivityInInvestmentInForeignJointVenturesTableTextBlock" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:textBlockItemType" xbrli:periodType="duration"/>
  <xsd:element id="slng_ScheduleOfFutureMinimumRentalPaymentsForOperatingAndFinancingLeasesTableTextBlock" name="ScheduleOfFutureMinimumRentalPaymentsForOperatingAndFinancingLeasesTableTextBlock" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:textBlockItemType" xbrli:periodType="duration"/>
  <xsd:element id="slng_ScheduleOfInterestExpenseOnDebtTableTextBlock" name="ScheduleOfInterestExpenseOnDebtTableTextBlock" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:textBlockItemType" xbrli:periodType="duration"/>
  <xsd:element id="slng_ScheduleOfLeaseAssetsAndLeaseLiabilityObligationsTableTextBlock" name="ScheduleOfLeaseAssetsAndLeaseLiabilityObligationsTableTextBlock" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:textBlockItemType" xbrli:periodType="duration"/>
  <xsd:element id="slng_ScheduleOfLeaseTermAndDiscountRatesOperatingAndFinanceLeaseObligationsTableTextBlock" name="ScheduleOfLeaseTermAndDiscountRatesOperatingAndFinanceLeaseObligationsTableTextBlock" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:textBlockItemType" xbrli:periodType="duration"/>
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  <xsd:element abstract="true" id="slng_SecuredTermNoteMember" name="SecuredTermNoteMember" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:domainItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="slng_SecuredTermNotePayableRelatedPartyMember" name="SecuredTermNotePayableRelatedPartyMember" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:domainItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="slng_SeparationAndConsultingAgreementMember" name="SeparationAndConsultingAgreementMember" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:domainItemType" xbrli:periodType="duration"/>
  <xsd:element id="slng_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExercisableNonvestedWeightedAverageGrantDateFairValue" name="ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExercisableNonvestedWeightedAverageGrantDateFairValue" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:perShareItemType" xbrli:periodType="instant"/>
  <xsd:element id="slng_SharebasedCompensationArrangementBySharebasedPaymentAwardGrantLimit" name="SharebasedCompensationArrangementBySharebasedPaymentAwardGrantLimit" nillable="true" substitutionGroup="xbrli:item" type="xbrli:sharesItemType" xbrli:periodType="duration"/>
  <xsd:element id="slng_SupplementalCashFlowInformationRelatedToLeasesTableTextBlock" name="SupplementalCashFlowInformationRelatedToLeasesTableTextBlock" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:textBlockItemType" xbrli:periodType="duration"/>
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  <xsd:element abstract="true" id="slng_TwoCustomersMember" name="TwoCustomersMember" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:domainItemType" xbrli:periodType="duration"/>
  <xsd:element id="slng_UnrealizedGainsLossesTransferredToRealizedGainsLossesNet" name="UnrealizedGainsLossesTransferredToRealizedGainsLossesNet" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration"/>
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  <xsd:element abstract="true" id="slng_statement-statement-note-10-leases-schedule-of-lease-assets-and-liabilities-details" name="statement-statement-note-10-leases-schedule-of-lease-assets-and-liabilities-details" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="slng_statement-statement-note-10-leases-schedule-of-lease-assets-and-liabilities-details-parentheticals" name="statement-statement-note-10-leases-schedule-of-lease-assets-and-liabilities-details-parentheticals" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="slng_statement-statement-note-10-leases-schedule-of-lease-costs-and-terms-for-operating-and-finance-lease-obligations-details" name="statement-statement-note-10-leases-schedule-of-lease-costs-and-terms-for-operating-and-finance-lease-obligations-details" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="slng_statement-statement-note-10-leases-schedule-of-lease-costs-details" name="statement-statement-note-10-leases-schedule-of-lease-costs-details" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="slng_statement-statement-note-10-leases-schedule-of-supplemental-cash-flow-information-related-to-leases-details" name="statement-statement-note-10-leases-schedule-of-supplemental-cash-flow-information-related-to-leases-details" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="slng_statement-statement-note-10-leases-tables" name="statement-statement-note-10-leases-tables" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
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  <xsd:element abstract="true" id="slng_statement-statement-note-12-income-taxes-reconciliation-of-income-taxes-details" name="statement-statement-note-12-income-taxes-reconciliation-of-income-taxes-details" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="slng_statement-statement-note-12-income-taxes-schedule-of-deferred-tax-assets-liabilities-details" name="statement-statement-note-12-income-taxes-schedule-of-deferred-tax-assets-liabilities-details" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="slng_statement-statement-note-12-income-taxes-tables" name="statement-statement-note-12-income-taxes-tables" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="slng_statement-statement-note-14-stockholders-equity-and-stockbased-compensation-restricted-stock-awards-and-restricted-stock-units-activity-details" name="statement-statement-note-14-stockholders-equity-and-stockbased-compensation-restricted-stock-awards-and-restricted-stock-units-activity-details" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="slng_statement-statement-note-14-stockholders-equity-and-stockbased-compensation-summary-of-issuances-of-shares-of-our-common-stock-details" name="statement-statement-note-14-stockholders-equity-and-stockbased-compensation-summary-of-issuances-of-shares-of-our-common-stock-details" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="slng_statement-statement-note-14-stockholders-equity-and-stockbased-compensation-summary-of-stock-appreciation-rights-details" name="statement-statement-note-14-stockholders-equity-and-stockbased-compensation-summary-of-stock-appreciation-rights-details" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="slng_statement-statement-note-14-stockholders-equity-and-stockbased-compensation-summary-of-stock-options-details" name="statement-statement-note-14-stockholders-equity-and-stockbased-compensation-summary-of-stock-options-details" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="slng_statement-statement-note-14-stockholders-equity-and-stockbased-compensation-tables" name="statement-statement-note-14-stockholders-equity-and-stockbased-compensation-tables" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="slng_statement-statement-note-15-supplemental-cash-flow-information-summary-of-supplemental-cash-flow-information-details" name="statement-statement-note-15-supplemental-cash-flow-information-summary-of-supplemental-cash-flow-information-details" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="slng_statement-statement-note-15-supplemental-cash-flow-information-tables" name="statement-statement-note-15-supplemental-cash-flow-information-tables" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="slng_statement-statement-note-16-net-income-loss-per-share-schedule-of-earnings-per-share-details" name="statement-statement-note-16-net-income-loss-per-share-schedule-of-earnings-per-share-details" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="slng_statement-statement-note-16-net-income-loss-per-share-tables" name="statement-statement-note-16-net-income-loss-per-share-tables" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="slng_statement-statement-note-2-revenue-recognition-disaggregation-of-revenue-details" name="statement-statement-note-2-revenue-recognition-disaggregation-of-revenue-details" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="slng_statement-statement-note-2-revenue-recognition-tables" name="statement-statement-note-2-revenue-recognition-tables" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="slng_statement-statement-note-3-significant-customers-and-concentration-of-risks-schedule-of-concentration-of-significant-customers-details" name="statement-statement-note-3-significant-customers-and-concentration-of-risks-schedule-of-concentration-of-significant-customers-details" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="slng_statement-statement-note-3-significant-customers-and-concentration-of-risks-tables" name="statement-statement-note-3-significant-customers-and-concentration-of-risks-tables" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="slng_statement-statement-note-4-derivative-instruments-gain-or-losses-of-derivative-instruments-details" name="statement-statement-note-4-derivative-instruments-gain-or-losses-of-derivative-instruments-details" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="slng_statement-statement-note-4-derivative-instruments-location-and-fair-value-of-derivative-instruments-details" name="statement-statement-note-4-derivative-instruments-location-and-fair-value-of-derivative-instruments-details" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="slng_statement-statement-note-4-derivative-instruments-tables" name="statement-statement-note-4-derivative-instruments-tables" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="slng_statement-statement-note-5-prepaid-expenses-and-other-current-assets-prepaid-expenses-and-other-current-assets-details" name="statement-statement-note-5-prepaid-expenses-and-other-current-assets-prepaid-expenses-and-other-current-assets-details" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="slng_statement-statement-note-5-prepaid-expenses-and-other-current-assets-tables" name="statement-statement-note-5-prepaid-expenses-and-other-current-assets-tables" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="slng_statement-statement-note-6-property-plant-and-equipment-net-property-plant-and-equipment-details" name="statement-statement-note-6-property-plant-and-equipment-net-property-plant-and-equipment-details" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="slng_statement-statement-note-6-property-plant-and-equipment-tables" name="statement-statement-note-6-property-plant-and-equipment-tables" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="slng_statement-statement-note-7-investment-in-foreign-joint-venture-schedule-of-activity-in-investment-in-foreign-joint-ventures-details" name="statement-statement-note-7-investment-in-foreign-joint-venture-schedule-of-activity-in-investment-in-foreign-joint-ventures-details" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="slng_statement-statement-note-7-investment-in-foreign-joint-venture-tables" name="statement-statement-note-7-investment-in-foreign-joint-venture-tables" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="slng_statement-statement-note-7-investments-in-foreign-joint-ventures-summary-of-equity-method-investment-details" name="statement-statement-note-7-investments-in-foreign-joint-ventures-summary-of-equity-method-investment-details" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="slng_statement-statement-note-8-accrued-liabilities-summary-of-accrued-liabilities-details" name="statement-statement-note-8-accrued-liabilities-summary-of-accrued-liabilities-details" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="slng_statement-statement-note-8-accrued-liabilities-tables" name="statement-statement-note-8-accrued-liabilities-tables" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="slng_statement-statement-note-9-debt-schedule-of-expected-maturities-of-indebtedness-details" name="statement-statement-note-9-debt-schedule-of-expected-maturities-of-indebtedness-details" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="slng_statement-statement-note-9-debt-schedule-of-interest-expense-details" name="statement-statement-note-9-debt-schedule-of-interest-expense-details" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="slng_statement-statement-note-9-debt-summary-of-debt-details" name="statement-statement-note-9-debt-summary-of-debt-details" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="slng_statement-statement-note-9-debt-tables" name="statement-statement-note-9-debt-tables" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="slng_statement-statement-significant-accounting-policies-policies" name="statement-statement-significant-accounting-policies-policies" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
</xsd:schema>
