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<!-- Creation Date :2023-01-26T12:41:54.0620+00:00 -->
<!-- Copyright (c) 2023 Donnelly Financial Solutions, Inc. All Rights Reserved. -->
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  <xsd:element id="exp_TerminalAcquisitionMember" name="TerminalAcquisitionMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="exp_TermLoanAgreementMember" name="TermLoanAgreementMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="exp_TermLoanMember" name="TermLoanMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="exp_TimeVestingRestrictedStockMember" name="TimeVestingRestrictedStockMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="exp_TimeVestingStockOptionsMember" name="TimeVestingStockOptionsMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="exp_TwoPointFiveZeroZeroPercentageSeniorUnsecuredNotesDueTwoThousandThirtyOneMember" name="TwoPointFiveZeroZeroPercentageSeniorUnsecuredNotesDueTwoThousandThirtyOneMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="exp_TwoPointFiveZeroZeroPercentageSeniorUnsecuredNotesDueTwoThousandTwentySixMember" name="TwoPointFiveZeroZeroPercentageSeniorUnsecuredNotesDueTwoThousandTwentySixMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="exp_WhollyOwnedOperationsMember" name="WhollyOwnedOperationsMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="exp_FairValueOfFinancialInstrumentsTable" name="FairValueOfFinancialInstrumentsTable" type="xbrli:stringItemType" substitutionGroup="xbrldt:hypercubeItem" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="exp_ScheduleOfAssetsLiabilitiesAndResultsOfOperationsForUnconsolidatedJointVenturesTableTextBlock" name="ScheduleOfAssetsLiabilitiesAndResultsOfOperationsForUnconsolidatedJointVenturesTableTextBlock" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/>
  <xsd:element id="exp_ScheduleOfBalanceSheetInformationRelatedToLeasesTableTextBlock" name="ScheduleOfBalanceSheetInformationRelatedToLeasesTableTextBlock" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/>
  <xsd:element id="exp_ScheduleOfFairValueOfLongTermDebtTableTextBlock" name="ScheduleOfFairValueOfLongTermDebtTableTextBlock" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/>
</xsd:schema>
