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  <xsd:element abstract="true" id="odc_ConsolidatedStatementsOfOperationsAbstract" name="ConsolidatedStatementsOfOperationsAbstract" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="odc_ConsolidatedStatementsOfStockholdersEquityAndOtherComprehensiveIncomeAbstract" name="ConsolidatedStatementsOfStockholdersEquityAndOtherComprehensiveIncomeAbstract" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration" />
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  <xsd:element id="odc_ConsolidatednetworthcovenantAdditionalcumulativeqrtlyearnings" name="ConsolidatednetworthcovenantAdditionalcumulativeqrtlyearnings" nillable="true" substitutionGroup="xbrli:item" type="num:percentItemType" xbrli:periodType="instant" />
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  <xsd:element id="odc_CorporateExpenses" name="CorporateExpenses" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:periodType="duration" />
  <xsd:element id="odc_Customerlistaccumulatedamortization" name="Customerlistaccumulatedamortization" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="instant" />
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  <xsd:element id="odc_Debtinstrumentminimumoverduefinancialobligationconsideredasdefault" name="Debtinstrumentminimumoverduefinancialobligationconsideredasdefault" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="instant" />
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  <xsd:element id="odc_DeferredCompensationInterestExpense" name="DeferredCompensationInterestExpense" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="odc_DeferredCompensationMember" name="DeferredCompensationMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="odc_DeferredIncomeTax" name="DeferredIncomeTax" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="instant" />
  <xsd:element abstract="true" id="odc_DeferredTaxAssetLiabilityAxis" name="DeferredTaxAssetLiabilityAxis" nillable="true" substitutionGroup="xbrldt:dimensionItem" type="xbrli:stringItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="odc_DeferredTaxAssetLiabilityDomain" name="DeferredTaxAssetLiabilityDomain" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="odc_DeferredTaxAssetLiabilityNetForeignSubsidiaries" name="DeferredTaxAssetLiabilityNetForeignSubsidiaries" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="instant" />
  <xsd:element abstract="true" id="odc_DeferredTaxAssetMember" name="DeferredTaxAssetMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="odc_DeferredTaxLiabilityMember" name="DeferredTaxLiabilityMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
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  <xsd:element abstract="true" id="odc_DirectorStockOptionMember" name="DirectorStockOptionMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="odc_DirectorsPlanMember" name="DirectorsPlanMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="odc_DocumentAndEntityInformationAbstract" name="DocumentAndEntityInformationAbstract" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="odc_DomesticOperationsMember" name="DomesticOperationsMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="odc_EmployeeBenefitPlansAbstract" name="EmployeeBenefitPlansAbstract" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="odc_EquitySecuritiesInternationalCompaniesMember" name="EquitySecuritiesInternationalCompaniesMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="odc_EquitySecuritiesUSCompaniesMember" name="EquitySecuritiesUSCompaniesMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="odc_FairValueAbstract" name="FairValueAbstract" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="odc_FinancialInstrumentsAbstract" name="FinancialInstrumentsAbstract" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="odc_FixedIncomeEmergingMarketsMember" name="FixedIncomeEmergingMarketsMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="odc_FixedIncomeFloatingratedebtMember" name="FixedIncomeFloatingratedebtMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="odc_FixedIncomeMultistrategybondfundMember" name="FixedIncomeMultistrategybondfundMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="odc_ForeignOperationsMember" name="ForeignOperationsMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="odc_ForeignandStateTaxStatuteOfLimitations" name="ForeignandStateTaxStatuteOfLimitations" nillable="true" substitutionGroup="xbrli:item" type="xbrli:durationItemType" xbrli:periodType="duration" />
  <xsd:element id="odc_Grossdepreciableassets" name="Grossdepreciableassets" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="instant" />
  <xsd:element abstract="true" id="odc_IncomeTaxesAbstract" name="IncomeTaxesAbstract" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="odc_IntangibleAssetsWeightedAverageAmortizationPeriodAbstract" name="IntangibleAssetsWeightedAverageAmortizationPeriodAbstract" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="odc_InternationalEquityMutualFundsDevelopedMarketsMember" name="InternationalEquityMutualFundsDevelopedMarketsMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="odc_InternationalEquityMutualFundsEmergingMarketsMember" name="InternationalEquityMutualFundsEmergingMarketsMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="odc_InvestmentInShortTermSecuritiesTableTextBlock" name="InvestmentInShortTermSecuritiesTableTextBlock" nillable="true" substitutionGroup="xbrli:item" type="nonnum:textBlockItemType" xbrli:periodType="duration" />
  <xsd:element id="odc_Landmineralrightsandreclamationasset" name="Landmineralrightsandreclamationasset" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="instant" />
  <xsd:element abstract="true" id="odc_LicensingandNoncompeteAgreementsMember" name="LicensingandNoncompeteAgreementsMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="odc_LineOfCreditFacilityVariableInterestRateLiborBased" name="LineOfCreditFacilityVariableInterestRateLiborBased" nillable="true" substitutionGroup="xbrli:item" type="num:percentItemType" xbrli:periodType="instant" />
  <xsd:element id="odc_LineOfCreditFacilityVariableInterestRatePrimeBased" name="LineOfCreditFacilityVariableInterestRatePrimeBased" nillable="true" substitutionGroup="xbrli:item" type="num:percentItemType" xbrli:periodType="instant" />
  <xsd:element id="odc_MarketableEquitySecuritiesNoncurrentFairValueDisclosure" name="MarketableEquitySecuritiesNoncurrentFairValueDisclosure" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="instant" />
  <xsd:element id="odc_MaximumofFundAssetsInvestedinDebtSecuritiesLowerThanSeniorClaim" name="MaximumofFundAssetsInvestedinDebtSecuritiesLowerThanSeniorClaim" nillable="true" substitutionGroup="xbrli:item" type="num:percentItemType" xbrli:periodType="duration" />
  <xsd:element id="odc_MaximumofFundAssetsInvestedinSeniorLoanstoNonUSBorrowers" name="MaximumofFundAssetsInvestedinSeniorLoanstoNonUSBorrowers" nillable="true" substitutionGroup="xbrli:item" type="num:percentItemType" xbrli:periodType="duration" />
  <xsd:element id="odc_MaximumofFundInvestedinHighYieldInvestments" name="MaximumofFundInvestedinHighYieldInvestments" nillable="true" substitutionGroup="xbrli:item" type="num:percentItemType" xbrli:periodType="duration" />
  <xsd:element id="odc_MinimumofFundAssetsInvestedinBondsandOtherFixedIncome" name="MinimumofFundAssetsInvestedinBondsandOtherFixedIncome" nillable="true" substitutionGroup="xbrli:item" type="num:percentItemType" xbrli:periodType="duration" />
  <xsd:element id="odc_MinimumofFundAssetsInvestedinFloatingRateDebt" name="MinimumofFundAssetsInvestedinFloatingRateDebt" nillable="true" substitutionGroup="xbrli:item" type="num:percentItemType" xbrli:periodType="duration" />
  <xsd:element id="odc_MinimumofFundAssetsInvestedinMortgageBackedSecurities" name="MinimumofFundAssetsInvestedinMortgageBackedSecurities" nillable="true" substitutionGroup="xbrli:item" type="num:percentItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="odc_MiningAndOtherMember" name="MiningAndOtherMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="odc_NarrativeAbstract" name="NarrativeAbstract" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration" />
  <xsd:element id="odc_NetAccountsReceivablePercentage" name="NetAccountsReceivablePercentage" nillable="true" substitutionGroup="xbrli:item" type="num:percentItemType" xbrli:periodType="instant" />
  <xsd:element id="odc_Netdepreciableassets" name="Netdepreciableassets" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="instant" />
  <xsd:element id="odc_Numberofconsecutiveyearsvestingoccursafterinitialvestdate" name="Numberofconsecutiveyearsvestingoccursafterinitialvestdate" nillable="true" substitutionGroup="xbrli:item" type="xbrli:durationItemType" xbrli:periodType="duration" />
  <xsd:element id="odc_Numberyearsaftergrantdatevestingstarts" name="Numberyearsaftergrantdatevestingstarts" nillable="true" substitutionGroup="xbrli:item" type="xbrli:durationItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="odc_OTHERCONTINGENCIESAbstract" name="OTHERCONTINGENCIESAbstract" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration" />
  <xsd:element id="odc_OfFundAssetsInvestedInDerivativeEmergingMarketsOrOtherDebtInstruments" name="OfFundAssetsInvestedInDerivativeEmergingMarketsOrOtherDebtInstruments" nillable="true" substitutionGroup="xbrli:item" type="num:percentItemType" xbrli:periodType="duration" />
  <xsd:element id="odc_OfFundAssetsInvestedInEmergingMarkets" name="OfFundAssetsInvestedInEmergingMarkets" nillable="true" substitutionGroup="xbrli:item" type="num:percentItemType" xbrli:periodType="duration" />
  <xsd:element id="odc_OfFundAssetsInvestedInNonUsStocks" name="OfFundAssetsInvestedInNonUsStocks" nillable="true" substitutionGroup="xbrli:item" type="num:percentItemType" xbrli:periodType="duration" />
  <xsd:element id="odc_OfFundAssetsInvestedPrimarilyInAsianStocksExcludingJapan" name="OfFundAssetsInvestedPrimarilyInAsianStocksExcludingJapan" nillable="true" substitutionGroup="xbrli:item" type="num:percentItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="odc_OfficeFurnitureComputersAndEquipmentMember" name="OfficeFurnitureComputersAndEquipmentMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="odc_OperatingSegmentsAbstract" name="OperatingSegmentsAbstract" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="odc_OtherCashFlowInformationAbstract" name="OtherCashFlowInformationAbstract" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="odc_OtherInvestmentMember" name="OtherInvestmentMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="odc_OverburdenRemovalAndMiningCostsPolicyTextBlock" name="OverburdenRemovalAndMiningCostsPolicyTextBlock" nillable="true" substitutionGroup="xbrli:item" type="nonnum:textBlockItemType" xbrli:periodType="duration" />
  <xsd:element id="odc_PackagingInventory" name="PackagingInventory" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="instant" />
  <xsd:element abstract="true" id="odc_PensionAndOtherPostretirementBenefitsAbstract" name="PensionAndOtherPostretirementBenefitsAbstract" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration" />
  <xsd:element id="odc_Preproductiondevelopmentcosts" name="Preproductiondevelopmentcosts" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element id="odc_Preproductionoverburdenremovalcosts" name="Preproductionoverburdenremovalcosts" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="odc_PrincipalPaymentDueOctober152014Member" name="PrincipalPaymentDueOctober152014Member" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="odc_PrincipalPaymentDueOctober152015Member" name="PrincipalPaymentDueOctober152015Member" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="odc_ProformaAbstract" name="ProformaAbstract" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="odc_PrudentialInsuranceCompanyOfAmericaAndPrudentialRetirementInsuranceAndAnnuityCompanMember" name="PrudentialInsuranceCompanyOfAmericaAndPrudentialRetirementInsuranceAndAnnuityCompanMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="odc_PrudentialInsurancecompanyofAmericaandothersMember" name="PrudentialInsurancecompanyofAmericaandothersMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="odc_RangeFiveMember" name="RangeFiveMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="odc_RangeFourMember" name="RangeFourMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="odc_RangeSixMember" name="RangeSixMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="odc_RelativetotaldividendratecommonstockplusclassaVersusClassaplusclassbstock" name="RelativetotaldividendratecommonstockplusclassaVersusClassaplusclassbstock" nillable="true" substitutionGroup="xbrli:item" type="num:percentItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="odc_RetailAndWholesaleSegmentMember" name="RetailAndWholesaleSegmentMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="odc_SalesOrTransfersBetweenGeographicAreas" name="SalesOrTransfersBetweenGeographicAreas" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration" />
  <xsd:element id="odc_SegmentReportingInformationOperatingIncomeForReportableSegment" name="SegmentReportingInformationOperatingIncomeForReportableSegment" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="odc_SelectedQuarterlyFinancialDataUnauditedAbstract" name="SelectedQuarterlyFinancialDataUnauditedAbstract" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="odc_SeveranceAndOtherEmployeeRelatedCostsMember" name="SeveranceAndOtherEmployeeRelatedCostsMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="odc_ShareBasedCompensationArrangementByShareBasedPaymentAwardNonvestedNumber" name="ShareBasedCompensationArrangementByShareBasedPaymentAwardNonvestedNumber" nillable="true" substitutionGroup="xbrli:item" type="xbrli:sharesItemType" xbrli:periodType="instant" />
  <xsd:element id="odc_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsNonvestedWeightedAverageExercisePrice" name="ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsNonvestedWeightedAverageExercisePrice" nillable="true" substitutionGroup="xbrli:item" type="num:perShareItemType" xbrli:periodType="instant" />
  <xsd:element id="odc_ShareBasedCompensationShareBasedPaymentAwardOptionsExpirationTerm" name="ShareBasedCompensationShareBasedPaymentAwardOptionsExpirationTerm" nillable="true" substitutionGroup="xbrli:item" type="xbrli:durationItemType" xbrli:periodType="duration" />
  <xsd:element id="odc_Sharebasedcompensationbysharebasedpaymentawardfairvalueassumptionvolatilityperiod" name="Sharebasedcompensationbysharebasedpaymentawardfairvalueassumptionvolatilityperiod" nillable="true" substitutionGroup="xbrli:item" type="xbrli:durationItemType" xbrli:periodType="duration" />
  <xsd:element id="odc_Sharebasedcompensationvestingpercentageannual" name="Sharebasedcompensationvestingpercentageannual" nillable="true" substitutionGroup="xbrli:item" type="num:percentItemType" xbrli:periodType="duration" />
  <xsd:element id="odc_SharesRepurchasedBoardApprovedCummulative" name="SharesRepurchasedBoardApprovedCummulative" nillable="true" substitutionGroup="xbrli:item" type="xbrli:sharesItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="odc_SpecialChargesAbstract" name="SpecialChargesAbstract" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="odc_StockBasedCompensationAbstract" name="StockBasedCompensationAbstract" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration" />
  <xsd:element id="odc_Strippingcosts" name="Strippingcosts" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="odc_SummaryOfSignificantAccountingPoliciesAbstract" name="SummaryOfSignificantAccountingPoliciesAbstract" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration" />
  <xsd:element id="odc_TradePromotionsPolicyTextBlock" name="TradePromotionsPolicyTextBlock" nillable="true" substitutionGroup="xbrli:item" type="nonnum:textBlockItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="odc_TrademarksandPatentsMember" name="TrademarksandPatentsMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="odc_Trademarksandpatents" name="Trademarksandpatents" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="instant" />
  <xsd:element id="odc_TrademarksandpatentsaccumulatedAmortization" name="TrademarksandpatentsaccumulatedAmortization" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="instant" />
  <xsd:element id="odc_Vehicles" name="Vehicles" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="instant" />
  <xsd:element abstract="true" id="odc_VehiclesAndRailcarsMember" name="VehiclesAndRailcarsMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="odc_VotingRightsPerShare" name="VotingRightsPerShare" nillable="true" substitutionGroup="xbrli:item" type="xbrli:decimalItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="odc_WalmartMember" name="WalmartMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="odc_WeightedAverageSharesOutstandingAbstract" name="WeightedAverageSharesOutstandingAbstract" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration" />
</xsd:schema>
