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    <link:label id="lab_ns_NustarPipelineOperatingPartnershipLpMember_422C0912EBDA81DA4875DC5D91422853_terseLabel_en-US" xlink:label="lab_ns_NustarPipelineOperatingPartnershipLpMember_422C0912EBDA81DA4875DC5D91422853" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">NuPOP</link:label>
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    <link:loc xlink:href="ns-20140331.xsd#ns_NustarPipelineOperatingPartnershipLpMember" xlink:label="loc_ns_NustarPipelineOperatingPartnershipLpMember_422C0912EBDA81DA4875DC5D91422853" xlink:type="locator" />
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    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ns_Payables_8738C5E03EB9249BB814DC5D9144F670" xlink:to="lab_ns_Payables_8738C5E03EB9249BB814DC5D9144F670" xlink:type="arc" />
    <link:label id="lab_ns_IntercompanyPayable_82EC9A59CBD0F39D6920DC5D9144DD69_terseLabel_en-US" xlink:label="lab_ns_IntercompanyPayable_82EC9A59CBD0F39D6920DC5D9144DD69" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Intercompany payable</link:label>
    <link:label id="lab_ns_IntercompanyPayable_82EC9A59CBD0F39D6920DC5D9144DD69_label_en-US" xlink:label="lab_ns_IntercompanyPayable_82EC9A59CBD0F39D6920DC5D9144DD69" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Intercompany payable</link:label>
    <link:label id="lab_ns_IntercompanyPayable_82EC9A59CBD0F39D6920DC5D9144DD69_documentation_en-US" xlink:label="lab_ns_IntercompanyPayable_82EC9A59CBD0F39D6920DC5D9144DD69" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Payables between consolidated subsidiaries of the entity or between consolidated subsidiaries and the parent of the entity.  These payables are eliminated when preparing consolidated financial statements.</link:label>
    <link:loc xlink:href="ns-20140331.xsd#ns_IntercompanyPayable" xlink:label="loc_ns_IntercompanyPayable_82EC9A59CBD0F39D6920DC5D9144DD69" xlink:type="locator" />
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    <link:label id="lab_us-gaap_LiabilitiesCurrent_12713FBCEE10DC91FBC3DC5D91445A9C_terseLabel_en-US" xlink:label="lab_us-gaap_LiabilitiesCurrent_12713FBCEE10DC91FBC3DC5D91445A9C" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Total current liabilities</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_LiabilitiesCurrent" xlink:label="loc_us-gaap_LiabilitiesCurrent_12713FBCEE10DC91FBC3DC5D91445A9C" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_LiabilitiesCurrent_12713FBCEE10DC91FBC3DC5D91445A9C" xlink:to="lab_us-gaap_LiabilitiesCurrent_12713FBCEE10DC91FBC3DC5D91445A9C" xlink:type="arc" />
    <link:label id="lab_us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest_19A46883D8DC2EC1D5F2DC5D914496B7_terseLabel_en-US" xlink:label="lab_us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest_19A46883D8DC2EC1D5F2DC5D914496B7" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Total partners&#8217; equity</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest" xlink:label="loc_us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest_19A46883D8DC2EC1D5F2DC5D914496B7" xlink:type="locator" />
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    <link:label id="lab_us-gaap_LiabilitiesAndStockholdersEquity_4EA192EB9B686AFA379FDC5D9144F0C5_terseLabel_en-US" xlink:label="lab_us-gaap_LiabilitiesAndStockholdersEquity_4EA192EB9B686AFA379FDC5D9144F0C5" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Total liabilities and partners' equity</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_LiabilitiesAndStockholdersEquity" xlink:label="loc_us-gaap_LiabilitiesAndStockholdersEquity_4EA192EB9B686AFA379FDC5D9144F0C5" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_LiabilitiesAndStockholdersEquity_4EA192EB9B686AFA379FDC5D9144F0C5" xlink:to="lab_us-gaap_LiabilitiesAndStockholdersEquity_4EA192EB9B686AFA379FDC5D9144F0C5" xlink:type="arc" />
    <link:label id="lab_us-gaap_OrganizationConsolidationAndPresentationOfFinancialStatementsAbstract_D00428FED16F3ACE7FAFBBDD51E3CEF8_label_en-US" xlink:label="lab_us-gaap_OrganizationConsolidationAndPresentationOfFinancialStatementsAbstract_D00428FED16F3ACE7FAFBBDD51E3CEF8" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Organization, Consolidation and Presentation of Financial Statements [Abstract]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_OrganizationConsolidationAndPresentationOfFinancialStatementsAbstract" xlink:label="loc_us-gaap_OrganizationConsolidationAndPresentationOfFinancialStatementsAbstract_D00428FED16F3ACE7FAFBBDD51E3CEF8" xlink:type="locator" />
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    <link:label id="lab_ns_LimitedPartnershipGeneralPartnerOwnershipInterest_E1CDB1F285CBAD34FBD6BBDD51E38B76_terseLabel_en-US" xlink:label="lab_ns_LimitedPartnershipGeneralPartnerOwnershipInterest_E1CDB1F285CBAD34FBD6BBDD51E38B76" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Total ownership interest held by general partner</link:label>
    <link:label id="lab_ns_LimitedPartnershipGeneralPartnerOwnershipInterest_E1CDB1F285CBAD34FBD6BBDD51E38B76_label_en-US" xlink:label="lab_ns_LimitedPartnershipGeneralPartnerOwnershipInterest_E1CDB1F285CBAD34FBD6BBDD51E38B76" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Limited Partnership General Partner Ownership Interest</link:label>
    <link:label id="lab_ns_LimitedPartnershipGeneralPartnerOwnershipInterest_E1CDB1F285CBAD34FBD6BBDD51E38B76_documentation_en-US" xlink:label="lab_ns_LimitedPartnershipGeneralPartnerOwnershipInterest_E1CDB1F285CBAD34FBD6BBDD51E38B76" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">The percentage investment held by the general partner of the limited partnership.</link:label>
    <link:loc xlink:href="ns-20140331.xsd#ns_LimitedPartnershipGeneralPartnerOwnershipInterest" xlink:label="loc_ns_LimitedPartnershipGeneralPartnerOwnershipInterest_E1CDB1F285CBAD34FBD6BBDD51E38B76" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ns_LimitedPartnershipGeneralPartnerOwnershipInterest_E1CDB1F285CBAD34FBD6BBDD51E38B76" xlink:to="lab_ns_LimitedPartnershipGeneralPartnerOwnershipInterest_E1CDB1F285CBAD34FBD6BBDD51E38B76" xlink:type="arc" />
    <link:label id="lab_ns_NetIncomeAllocationTable_E6C54FFB7A5F74AD583F89D18AA87F0A_terseLabel_en-US" xlink:label="lab_ns_NetIncomeAllocationTable_E6C54FFB7A5F74AD583F89D18AA87F0A" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Net Income Allocation [Table]</link:label>
    <link:label id="lab_ns_NetIncomeAllocationTable_E6C54FFB7A5F74AD583F89D18AA87F0A_label_en-US" xlink:label="lab_ns_NetIncomeAllocationTable_E6C54FFB7A5F74AD583F89D18AA87F0A" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Net Income Allocation [Table]</link:label>
    <link:label id="lab_ns_NetIncomeAllocationTable_E6C54FFB7A5F74AD583F89D18AA87F0A_documentation_en-US" xlink:label="lab_ns_NetIncomeAllocationTable_E6C54FFB7A5F74AD583F89D18AA87F0A" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Details the calculation of net income applicable to the general partner.</link:label>
    <link:loc xlink:href="ns-20140331.xsd#ns_NetIncomeAllocationTable" xlink:label="loc_ns_NetIncomeAllocationTable_E6C54FFB7A5F74AD583F89D18AA87F0A" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ns_NetIncomeAllocationTable_E6C54FFB7A5F74AD583F89D18AA87F0A" xlink:to="lab_ns_NetIncomeAllocationTable_E6C54FFB7A5F74AD583F89D18AA87F0A" xlink:type="arc" />
    <link:label id="lab_ns_NetIncomeAllocationLineItems_274B1BB01EF7859C083D89D18AA86BE7_terseLabel_en-US" xlink:label="lab_ns_NetIncomeAllocationLineItems_274B1BB01EF7859C083D89D18AA86BE7" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Net Income Allocation [Line Items]</link:label>
    <link:label id="lab_ns_NetIncomeAllocationLineItems_274B1BB01EF7859C083D89D18AA86BE7_label_en-US" xlink:label="lab_ns_NetIncomeAllocationLineItems_274B1BB01EF7859C083D89D18AA86BE7" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Net Income Allocation [Line Items]</link:label>
    <link:label id="lab_ns_NetIncomeAllocationLineItems_274B1BB01EF7859C083D89D18AA86BE7_documentation_en-US" xlink:label="lab_ns_NetIncomeAllocationLineItems_274B1BB01EF7859C083D89D18AA86BE7" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Line items for the schedule that details the calculation of net income applicable to the general partner.</link:label>
    <link:loc xlink:href="ns-20140331.xsd#ns_NetIncomeAllocationLineItems" xlink:label="loc_ns_NetIncomeAllocationLineItems_274B1BB01EF7859C083D89D18AA86BE7" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ns_NetIncomeAllocationLineItems_274B1BB01EF7859C083D89D18AA86BE7" xlink:to="lab_ns_NetIncomeAllocationLineItems_274B1BB01EF7859C083D89D18AA86BE7" xlink:type="arc" />
    <link:label id="lab_us-gaap_NetIncomeLoss_B71557CCC6795945105089D18AA86CB1_terseLabel_en-US" xlink:label="lab_us-gaap_NetIncomeLoss_B71557CCC6795945105089D18AA86CB1" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Net income (loss) attributable to NuStar Energy L.P.</link:label>
    <link:label id="lab_us-gaap_NetIncomeLoss_B71557CCC6795945105089D18AA86CB1_label_en-US" xlink:label="lab_us-gaap_NetIncomeLoss_B71557CCC6795945105089D18AA86CB1" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Net Income (Loss) Attributable to Parent</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_NetIncomeLoss" xlink:label="loc_us-gaap_NetIncomeLoss_B71557CCC6795945105089D18AA86CB1" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_NetIncomeLoss_B71557CCC6795945105089D18AA86CB1" xlink:to="lab_us-gaap_NetIncomeLoss_B71557CCC6795945105089D18AA86CB1" xlink:type="arc" />
    <link:label id="lab_ns_GeneralPartnerIncentiveDistribution_D1DEF93558A4A4C6102E89D18AA8D414_verboseLabel_en-US" xlink:label="lab_ns_GeneralPartnerIncentiveDistribution_D1DEF93558A4A4C6102E89D18AA8D414" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Less general partner incentive distribution</link:label>
    <link:label id="lab_ns_GeneralPartnerIncentiveDistribution_D1DEF93558A4A4C6102E89D18AA8D414_label_en-US" xlink:label="lab_ns_GeneralPartnerIncentiveDistribution_D1DEF93558A4A4C6102E89D18AA8D414" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">General Partner Incentive Distribution</link:label>
    <link:label id="lab_ns_GeneralPartnerIncentiveDistribution_D1DEF93558A4A4C6102E89D18AA8D414_documentation_en-US" xlink:label="lab_ns_GeneralPartnerIncentiveDistribution_D1DEF93558A4A4C6102E89D18AA8D414" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">General partner incentive distribution amount earned during the period.</link:label>
    <link:loc xlink:href="ns-20140331.xsd#ns_GeneralPartnerIncentiveDistribution" xlink:label="loc_ns_GeneralPartnerIncentiveDistribution_D1DEF93558A4A4C6102E89D18AA8D414" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ns_GeneralPartnerIncentiveDistribution_D1DEF93558A4A4C6102E89D18AA8D414" xlink:to="lab_ns_GeneralPartnerIncentiveDistribution_D1DEF93558A4A4C6102E89D18AA8D414" xlink:type="arc" />
    <link:label id="lab_ns_NetIncomeLessGeneralPartnerIncentiveDistribution_4F525A0357D704086CB089D18AA89DDC_totalLabel_en-US" xlink:label="lab_ns_NetIncomeLessGeneralPartnerIncentiveDistribution_4F525A0357D704086CB089D18AA89DDC" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xml:lang="en-US">Net income after general partner incentive distribution</link:label>
    <link:label id="lab_ns_NetIncomeLessGeneralPartnerIncentiveDistribution_4F525A0357D704086CB089D18AA89DDC_label_en-US" xlink:label="lab_ns_NetIncomeLessGeneralPartnerIncentiveDistribution_4F525A0357D704086CB089D18AA89DDC" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Net Income Less General Partner Incentive Distribution</link:label>
    <link:label id="lab_ns_NetIncomeLessGeneralPartnerIncentiveDistribution_4F525A0357D704086CB089D18AA89DDC_documentation_en-US" xlink:label="lab_ns_NetIncomeLessGeneralPartnerIncentiveDistribution_4F525A0357D704086CB089D18AA89DDC" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Net Income Less General Partner Incentive Distribution</link:label>
    <link:loc xlink:href="ns-20140331.xsd#ns_NetIncomeLessGeneralPartnerIncentiveDistribution" xlink:label="loc_ns_NetIncomeLessGeneralPartnerIncentiveDistribution_4F525A0357D704086CB089D18AA89DDC" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ns_NetIncomeLessGeneralPartnerIncentiveDistribution_4F525A0357D704086CB089D18AA89DDC" xlink:to="lab_ns_NetIncomeLessGeneralPartnerIncentiveDistribution_4F525A0357D704086CB089D18AA89DDC" xlink:type="arc" />
    <link:label id="lab_ns_GeneralPartnerOwnershipInterest_5945C66DB8ECF6A1BF7189D18AA83250_terseLabel_en-US" xlink:label="lab_ns_GeneralPartnerOwnershipInterest_5945C66DB8ECF6A1BF7189D18AA83250" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">General partner interest</link:label>
    <link:label id="lab_ns_GeneralPartnerOwnershipInterest_5945C66DB8ECF6A1BF7189D18AA83250_label_en-US" xlink:label="lab_ns_GeneralPartnerOwnershipInterest_5945C66DB8ECF6A1BF7189D18AA83250" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">General Partner Ownership Interest</link:label>
    <link:label id="lab_ns_GeneralPartnerOwnershipInterest_5945C66DB8ECF6A1BF7189D18AA83250_documentation_en-US" xlink:label="lab_ns_GeneralPartnerOwnershipInterest_5945C66DB8ECF6A1BF7189D18AA83250" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">The general partner ownership interest (ownership percentage) in the limited partnership.</link:label>
    <link:loc xlink:href="ns-20140331.xsd#ns_GeneralPartnerOwnershipInterest" xlink:label="loc_ns_GeneralPartnerOwnershipInterest_5945C66DB8ECF6A1BF7189D18AA83250" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ns_GeneralPartnerOwnershipInterest_5945C66DB8ECF6A1BF7189D18AA83250" xlink:to="lab_ns_GeneralPartnerOwnershipInterest_5945C66DB8ECF6A1BF7189D18AA83250" xlink:type="arc" />
    <link:label id="lab_ns_GeneralPartnerAllocationOfNetIncomeExcludingIncentiveDistribution_9C8EE0409EC3D6DD81CB89D18AA89635_terseLabel_en-US" xlink:label="lab_ns_GeneralPartnerAllocationOfNetIncomeExcludingIncentiveDistribution_9C8EE0409EC3D6DD81CB89D18AA89635" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">General partner allocation of net income after general partner incentive distribution</link:label>
    <link:label id="lab_ns_GeneralPartnerAllocationOfNetIncomeExcludingIncentiveDistribution_9C8EE0409EC3D6DD81CB89D18AA89635_label_en-US" xlink:label="lab_ns_GeneralPartnerAllocationOfNetIncomeExcludingIncentiveDistribution_9C8EE0409EC3D6DD81CB89D18AA89635" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">General Partner Allocation Of Net Income Excluding Incentive Distribution</link:label>
    <link:label id="lab_ns_GeneralPartnerAllocationOfNetIncomeExcludingIncentiveDistribution_9C8EE0409EC3D6DD81CB89D18AA89635_documentation_en-US" xlink:label="lab_ns_GeneralPartnerAllocationOfNetIncomeExcludingIncentiveDistribution_9C8EE0409EC3D6DD81CB89D18AA89635" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Net income applicable to the general partner after the incentive distribution is deducted.</link:label>
    <link:loc xlink:href="ns-20140331.xsd#ns_GeneralPartnerAllocationOfNetIncomeExcludingIncentiveDistribution" xlink:label="loc_ns_GeneralPartnerAllocationOfNetIncomeExcludingIncentiveDistribution_9C8EE0409EC3D6DD81CB89D18AA89635" xlink:type="locator" />
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    <link:label id="lab_ns_GeneralPartnerIncentiveDistribution_4392FDEAD9868CC1CF1889D18AA8FA44_terseLabel_en-US" xlink:label="lab_ns_GeneralPartnerIncentiveDistribution_4392FDEAD9868CC1CF1889D18AA8FA44" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">General partner incentive distribution</link:label>
    <link:loc xlink:href="ns-20140331.xsd#ns_GeneralPartnerIncentiveDistribution" xlink:label="loc_ns_GeneralPartnerIncentiveDistribution_4392FDEAD9868CC1CF1889D18AA8FA44" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ns_GeneralPartnerIncentiveDistribution_4392FDEAD9868CC1CF1889D18AA8FA44" xlink:to="lab_ns_GeneralPartnerIncentiveDistribution_4392FDEAD9868CC1CF1889D18AA8FA44" xlink:type="arc" />
    <link:label id="lab_us-gaap_NetIncomeLossAllocatedToGeneralPartners_DE10C68E46F1FF83044C89D18AA802D7_totalLabel_en-US" xlink:label="lab_us-gaap_NetIncomeLossAllocatedToGeneralPartners_DE10C68E46F1FF83044C89D18AA802D7" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xml:lang="en-US">Net income applicable to general partner</link:label>
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    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_SegmentDomain_EAD1C2B060CE318F59F085A4DD506E4F" xlink:to="lab_us-gaap_SegmentDomain_EAD1C2B060CE318F59F085A4DD506E4F" xlink:type="arc" />
    <link:label id="lab_ns_TransportationSegmentMember_57B96B3C5161EC87A8B585A4DD5030F0_terseLabel_en-US" xlink:label="lab_ns_TransportationSegmentMember_57B96B3C5161EC87A8B585A4DD5030F0" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Pipeline Segment</link:label>
    <link:label id="lab_ns_TransportationSegmentMember_57B96B3C5161EC87A8B585A4DD5030F0_label_en-US" xlink:label="lab_ns_TransportationSegmentMember_57B96B3C5161EC87A8B585A4DD5030F0" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Transportation Segment [Member]</link:label>
    <link:label id="lab_ns_TransportationSegmentMember_57B96B3C5161EC87A8B585A4DD5030F0_documentation_en-US" xlink:label="lab_ns_TransportationSegmentMember_57B96B3C5161EC87A8B585A4DD5030F0" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Transportation Segment [Member]</link:label>
    <link:loc xlink:href="ns-20140331.xsd#ns_TransportationSegmentMember" xlink:label="loc_ns_TransportationSegmentMember_57B96B3C5161EC87A8B585A4DD5030F0" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ns_TransportationSegmentMember_57B96B3C5161EC87A8B585A4DD5030F0" xlink:to="lab_ns_TransportationSegmentMember_57B96B3C5161EC87A8B585A4DD5030F0" xlink:type="arc" />
    <link:label id="lab_ns_StorageSegmentMember_47CB99BD726218FAAF7C85A4DD50E6AF_terseLabel_en-US" xlink:label="lab_ns_StorageSegmentMember_47CB99BD726218FAAF7C85A4DD50E6AF" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Storage Segment</link:label>
    <link:label id="lab_ns_StorageSegmentMember_47CB99BD726218FAAF7C85A4DD50E6AF_label_en-US" xlink:label="lab_ns_StorageSegmentMember_47CB99BD726218FAAF7C85A4DD50E6AF" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Storage Segment [Member]</link:label>
    <link:label id="lab_ns_StorageSegmentMember_47CB99BD726218FAAF7C85A4DD50E6AF_documentation_en-US" xlink:label="lab_ns_StorageSegmentMember_47CB99BD726218FAAF7C85A4DD50E6AF" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Storage Segment [Member]</link:label>
    <link:loc xlink:href="ns-20140331.xsd#ns_StorageSegmentMember" xlink:label="loc_ns_StorageSegmentMember_47CB99BD726218FAAF7C85A4DD50E6AF" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ns_StorageSegmentMember_47CB99BD726218FAAF7C85A4DD50E6AF" xlink:to="lab_ns_StorageSegmentMember_47CB99BD726218FAAF7C85A4DD50E6AF" xlink:type="arc" />
    <link:label id="lab_ns_AsphaltAndFuelsMarketingSegmentMember_341BB7ECA9D8B75D155D85A4DD50C464_terseLabel_en-US" xlink:label="lab_ns_AsphaltAndFuelsMarketingSegmentMember_341BB7ECA9D8B75D155D85A4DD50C464" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Fuels Marketing Segment</link:label>
    <link:label id="lab_ns_AsphaltAndFuelsMarketingSegmentMember_341BB7ECA9D8B75D155D85A4DD50C464_label_en-US" xlink:label="lab_ns_AsphaltAndFuelsMarketingSegmentMember_341BB7ECA9D8B75D155D85A4DD50C464" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Asphalt and Fuels Marketing Segment [Member]</link:label>
    <link:label id="lab_ns_AsphaltAndFuelsMarketingSegmentMember_341BB7ECA9D8B75D155D85A4DD50C464_documentation_en-US" xlink:label="lab_ns_AsphaltAndFuelsMarketingSegmentMember_341BB7ECA9D8B75D155D85A4DD50C464" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Asphalt and Fuels Marketing Segment [Member]</link:label>
    <link:loc xlink:href="ns-20140331.xsd#ns_AsphaltAndFuelsMarketingSegmentMember" xlink:label="loc_ns_AsphaltAndFuelsMarketingSegmentMember_341BB7ECA9D8B75D155D85A4DD50C464" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ns_AsphaltAndFuelsMarketingSegmentMember_341BB7ECA9D8B75D155D85A4DD50C464" xlink:to="lab_ns_AsphaltAndFuelsMarketingSegmentMember_341BB7ECA9D8B75D155D85A4DD50C464" xlink:type="arc" />
    <link:label id="lab_us-gaap_CorporateNonSegmentMember_96EF47C652FB6BD89EF485A4DD5030DD_terseLabel_en-US" xlink:label="lab_us-gaap_CorporateNonSegmentMember_96EF47C652FB6BD89EF485A4DD5030DD" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Other partnership assets</link:label>
    <link:label id="lab_us-gaap_CorporateNonSegmentMember_96EF47C652FB6BD89EF485A4DD5030DD_label_en-US" xlink:label="lab_us-gaap_CorporateNonSegmentMember_96EF47C652FB6BD89EF485A4DD5030DD" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Corporate, Non-Segment [Member]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_CorporateNonSegmentMember" xlink:label="loc_us-gaap_CorporateNonSegmentMember_96EF47C652FB6BD89EF485A4DD5030DD" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_CorporateNonSegmentMember_96EF47C652FB6BD89EF485A4DD5030DD" xlink:to="lab_us-gaap_CorporateNonSegmentMember_96EF47C652FB6BD89EF485A4DD5030DD" xlink:type="arc" />
    <link:label id="lab_us-gaap_SegmentReportingInformationLineItems_03A8E2E6895F3B33046585A4DD506547_terseLabel_en-US" xlink:label="lab_us-gaap_SegmentReportingInformationLineItems_03A8E2E6895F3B33046585A4DD506547" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Segment Information</link:label>
    <link:label id="lab_us-gaap_SegmentReportingInformationLineItems_03A8E2E6895F3B33046585A4DD506547_label_en-US" xlink:label="lab_us-gaap_SegmentReportingInformationLineItems_03A8E2E6895F3B33046585A4DD506547" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Segment Reporting Information [Line Items]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_SegmentReportingInformationLineItems" xlink:label="loc_us-gaap_SegmentReportingInformationLineItems_03A8E2E6895F3B33046585A4DD506547" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_SegmentReportingInformationLineItems_03A8E2E6895F3B33046585A4DD506547" xlink:to="lab_us-gaap_SegmentReportingInformationLineItems_03A8E2E6895F3B33046585A4DD506547" xlink:type="arc" />
    <link:label id="lab_us-gaap_Assets_580E41FB9417CF864E7385A4DD507792_terseLabel_en-US" xlink:label="lab_us-gaap_Assets_580E41FB9417CF864E7385A4DD507792" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Total consolidated assets</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_Assets" xlink:label="loc_us-gaap_Assets_580E41FB9417CF864E7385A4DD507792" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_Assets_580E41FB9417CF864E7385A4DD507792" xlink:to="lab_us-gaap_Assets_580E41FB9417CF864E7385A4DD507792" xlink:type="arc" />
    <link:label id="lab_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisTable_803E3B560A98DA239CBFCCE6ED63ABFC_terseLabel_en-US" xlink:label="lab_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisTable_803E3B560A98DA239CBFCCE6ED63ABFC" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Fair Value Assets and Liabilities Measured On Recurring Basis [Table]</link:label>
    <link:label id="lab_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisTable_803E3B560A98DA239CBFCCE6ED63ABFC_label_en-US" xlink:label="lab_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisTable_803E3B560A98DA239CBFCCE6ED63ABFC" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Fair Value Measurements, Recurring and Nonrecurring [Table]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisTable" xlink:label="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisTable_803E3B560A98DA239CBFCCE6ED63ABFC" xlink:type="locator" />
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    <link:label id="lab_us-gaap_FairValueByMeasurementFrequencyAxis_20C5AA76F8F1F27EA4E5CCE6ED63D3FA_terseLabel_en-US" xlink:label="lab_us-gaap_FairValueByMeasurementFrequencyAxis_20C5AA76F8F1F27EA4E5CCE6ED63D3FA" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Fair Value by Measurement Frequency [Axis]</link:label>
    <link:label id="lab_us-gaap_FairValueByMeasurementFrequencyAxis_20C5AA76F8F1F27EA4E5CCE6ED63D3FA_label_en-US" xlink:label="lab_us-gaap_FairValueByMeasurementFrequencyAxis_20C5AA76F8F1F27EA4E5CCE6ED63D3FA" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Measurement Frequency [Axis]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_FairValueByMeasurementFrequencyAxis" xlink:label="loc_us-gaap_FairValueByMeasurementFrequencyAxis_20C5AA76F8F1F27EA4E5CCE6ED63D3FA" xlink:type="locator" />
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    <link:label id="lab_us-gaap_FairValueMeasurementFrequencyDomain_2EB7614EC12DB52F13B7CCE6ED633C9B_label_en-US" xlink:label="lab_us-gaap_FairValueMeasurementFrequencyDomain_2EB7614EC12DB52F13B7CCE6ED633C9B" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Fair Value, Measurement Frequency [Domain]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_FairValueMeasurementFrequencyDomain" xlink:label="loc_us-gaap_FairValueMeasurementFrequencyDomain_2EB7614EC12DB52F13B7CCE6ED633C9B" xlink:type="locator" />
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    <link:label id="lab_us-gaap_FairValueMeasurementsRecurringMember_E7767455EFC5FB87D4D9CCE6ED63978C_label_en-US" xlink:label="lab_us-gaap_FairValueMeasurementsRecurringMember_E7767455EFC5FB87D4D9CCE6ED63978C" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Fair Value, Measurements, Recurring [Member]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_FairValueMeasurementsRecurringMember" xlink:label="loc_us-gaap_FairValueMeasurementsRecurringMember_E7767455EFC5FB87D4D9CCE6ED63978C" xlink:type="locator" />
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    <link:label id="lab_us-gaap_BalanceSheetLocationAxis_710BDA603198B71FC706CCE6ED633C91_label_en-US" xlink:label="lab_us-gaap_BalanceSheetLocationAxis_710BDA603198B71FC706CCE6ED633C91" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Balance Sheet Location [Axis]</link:label>
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    <link:label id="lab_us-gaap_BalanceSheetLocationDomain_A0284CDA0733A56F197DCCE6ED631C65_terseLabel_en-US" xlink:label="lab_us-gaap_BalanceSheetLocationDomain_A0284CDA0733A56F197DCCE6ED631C65" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Balance Sheet Location [Domain]</link:label>
    <link:label id="lab_us-gaap_BalanceSheetLocationDomain_A0284CDA0733A56F197DCCE6ED631C65_label_en-US" xlink:label="lab_us-gaap_BalanceSheetLocationDomain_A0284CDA0733A56F197DCCE6ED631C65" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Balance Sheet Location [Domain]</link:label>
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    <link:label id="lab_us-gaap_OtherCurrentAssetsMember_263BE20C6D14D380DB11CCE6ED637950_terseLabel_en-US" xlink:label="lab_us-gaap_OtherCurrentAssetsMember_263BE20C6D14D380DB11CCE6ED637950" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Other current assets</link:label>
    <link:label id="lab_us-gaap_OtherCurrentAssetsMember_263BE20C6D14D380DB11CCE6ED637950_label_en-US" xlink:label="lab_us-gaap_OtherCurrentAssetsMember_263BE20C6D14D380DB11CCE6ED637950" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Other Current Assets [Member]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_OtherCurrentAssetsMember" xlink:label="loc_us-gaap_OtherCurrentAssetsMember_263BE20C6D14D380DB11CCE6ED637950" xlink:type="locator" />
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    <link:label id="lab_us-gaap_OtherNoncurrentAssetsMember_06B37BC0F2A1C5F53FA0CCE6ED633835_terseLabel_en-US" xlink:label="lab_us-gaap_OtherNoncurrentAssetsMember_06B37BC0F2A1C5F53FA0CCE6ED633835" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Other long-term assets, net</link:label>
    <link:label id="lab_us-gaap_OtherNoncurrentAssetsMember_06B37BC0F2A1C5F53FA0CCE6ED633835_label_en-US" xlink:label="lab_us-gaap_OtherNoncurrentAssetsMember_06B37BC0F2A1C5F53FA0CCE6ED633835" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Other Noncurrent Assets [Member]</link:label>
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    <link:label id="lab_us-gaap_OtherCurrentLiabilitiesMember_8B9FD45CD68C2598F33DCCE6ED637FED_label_en-US" xlink:label="lab_us-gaap_OtherCurrentLiabilitiesMember_8B9FD45CD68C2598F33DCCE6ED637FED" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Other Current Liabilities [Member]</link:label>
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    <link:label id="lab_us-gaap_InventoryLineItems_0E06E4BAFA1D8C16145DBBDD50E99085_label_en-US" xlink:label="lab_us-gaap_InventoryLineItems_0E06E4BAFA1D8C16145DBBDD50E99085" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Inventory [Line Items]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_InventoryLineItems" xlink:label="loc_us-gaap_InventoryLineItems_0E06E4BAFA1D8C16145DBBDD50E99085" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_InventoryLineItems_0E06E4BAFA1D8C16145DBBDD50E99085" xlink:to="lab_us-gaap_InventoryLineItems_0E06E4BAFA1D8C16145DBBDD50E99085" xlink:type="arc" />
    <link:label id="lab_ns_InventoryCrudeOil_93E9E69741BB8C9A6315BBDD50E9222B_terseLabel_en-US" xlink:label="lab_ns_InventoryCrudeOil_93E9E69741BB8C9A6315BBDD50E9222B" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Crude oil</link:label>
    <link:label id="lab_ns_InventoryCrudeOil_93E9E69741BB8C9A6315BBDD50E9222B_label_en-US" xlink:label="lab_ns_InventoryCrudeOil_93E9E69741BB8C9A6315BBDD50E9222B" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Inventory, Crude oil</link:label>
    <link:label id="lab_ns_InventoryCrudeOil_93E9E69741BB8C9A6315BBDD50E9222B_documentation_en-US" xlink:label="lab_ns_InventoryCrudeOil_93E9E69741BB8C9A6315BBDD50E9222B" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">The aggregate carrying amount as of the balance sheet date of unrefined petroleum.</link:label>
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    <link:label id="lab_us-gaap_InventoryFinishedGoods_5D3F08BF59635E62BB3CBBDD50E900D0_terseLabel_en-US" xlink:label="lab_us-gaap_InventoryFinishedGoods_5D3F08BF59635E62BB3CBBDD50E900D0" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Finished products</link:label>
    <link:label id="lab_us-gaap_InventoryFinishedGoods_5D3F08BF59635E62BB3CBBDD50E900D0_label_en-US" xlink:label="lab_us-gaap_InventoryFinishedGoods_5D3F08BF59635E62BB3CBBDD50E900D0" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Inventory, Finished Goods, Gross</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_InventoryFinishedGoods" xlink:label="loc_us-gaap_InventoryFinishedGoods_5D3F08BF59635E62BB3CBBDD50E900D0" xlink:type="locator" />
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    <link:label id="lab_us-gaap_InventoryRawMaterialsAndSupplies_19BD483822DC15A5973CBBDD50E944B1_terseLabel_en-US" xlink:label="lab_us-gaap_InventoryRawMaterialsAndSupplies_19BD483822DC15A5973CBBDD50E944B1" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Materials and supplies</link:label>
    <link:label id="lab_us-gaap_InventoryRawMaterialsAndSupplies_19BD483822DC15A5973CBBDD50E944B1_label_en-US" xlink:label="lab_us-gaap_InventoryRawMaterialsAndSupplies_19BD483822DC15A5973CBBDD50E944B1" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Inventory, Raw Materials and Supplies, Gross</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_InventoryRawMaterialsAndSupplies" xlink:label="loc_us-gaap_InventoryRawMaterialsAndSupplies_19BD483822DC15A5973CBBDD50E944B1" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_InventoryRawMaterialsAndSupplies_19BD483822DC15A5973CBBDD50E944B1" xlink:to="lab_us-gaap_InventoryRawMaterialsAndSupplies_19BD483822DC15A5973CBBDD50E944B1" xlink:type="arc" />
    <link:label id="lab_us-gaap_InventoryNet_0768D173CD25FE09E0A8BBDD50E9ABD6_totalLabel_en-US" xlink:label="lab_us-gaap_InventoryNet_0768D173CD25FE09E0A8BBDD50E9ABD6" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xml:lang="en-US">Total</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_InventoryNet" xlink:label="loc_us-gaap_InventoryNet_0768D173CD25FE09E0A8BBDD50E9ABD6" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_InventoryNet_0768D173CD25FE09E0A8BBDD50E9ABD6" xlink:to="lab_us-gaap_InventoryNet_0768D173CD25FE09E0A8BBDD50E9ABD6" xlink:type="arc" />
    <link:label id="lab_ns_ScheduleOfDistributionsToLimitedAndGeneralPartnersTable_324BA249D156FED4356089D189AE6907_terseLabel_en-US" xlink:label="lab_ns_ScheduleOfDistributionsToLimitedAndGeneralPartnersTable_324BA249D156FED4356089D189AE6907" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Schedule of Distributions To Limited and General Partners [Table]</link:label>
    <link:label id="lab_ns_ScheduleOfDistributionsToLimitedAndGeneralPartnersTable_324BA249D156FED4356089D189AE6907_label_en-US" xlink:label="lab_ns_ScheduleOfDistributionsToLimitedAndGeneralPartnersTable_324BA249D156FED4356089D189AE6907" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Schedule of Distributions To Limited and General Partners [Table]</link:label>
    <link:label id="lab_ns_ScheduleOfDistributionsToLimitedAndGeneralPartnersTable_324BA249D156FED4356089D189AE6907_documentation_en-US" xlink:label="lab_ns_ScheduleOfDistributionsToLimitedAndGeneralPartnersTable_324BA249D156FED4356089D189AE6907" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Schedule of distributions earned during the accounting period to limited and general partners of a limited partnership, as governed by the partnership agreement.</link:label>
    <link:loc xlink:href="ns-20140331.xsd#ns_ScheduleOfDistributionsToLimitedAndGeneralPartnersTable" xlink:label="loc_ns_ScheduleOfDistributionsToLimitedAndGeneralPartnersTable_324BA249D156FED4356089D189AE6907" xlink:type="locator" />
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    <link:label id="lab_ns_DistributionsMadeToLimitedPartnersAndGeneralPartnerLineItems_A41828B107C40469BD8C89D189AE998E_label_en-US" xlink:label="lab_ns_DistributionsMadeToLimitedPartnersAndGeneralPartnerLineItems_A41828B107C40469BD8C89D189AE998E" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Distributions Made to Limited Partners and General Partner [Line Items]</link:label>
    <link:label id="lab_ns_DistributionsMadeToLimitedPartnersAndGeneralPartnerLineItems_A41828B107C40469BD8C89D189AE998E_documentation_en-US" xlink:label="lab_ns_DistributionsMadeToLimitedPartnersAndGeneralPartnerLineItems_A41828B107C40469BD8C89D189AE998E" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Distributions Made to Limited Partners and General Partner [Line Items]</link:label>
    <link:loc xlink:href="ns-20140331.xsd#ns_DistributionsMadeToLimitedPartnersAndGeneralPartnerLineItems" xlink:label="loc_ns_DistributionsMadeToLimitedPartnersAndGeneralPartnerLineItems_A41828B107C40469BD8C89D189AE998E" xlink:type="locator" />
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    <link:label id="lab_ns_GeneralPartnerInterestDistribution_F31E9429687C3B9C54CE89D189AE8539_terseLabel_en-US" xlink:label="lab_ns_GeneralPartnerInterestDistribution_F31E9429687C3B9C54CE89D189AE8539" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">General partner interest</link:label>
    <link:label id="lab_ns_GeneralPartnerInterestDistribution_F31E9429687C3B9C54CE89D189AE8539_label_en-US" xlink:label="lab_ns_GeneralPartnerInterestDistribution_F31E9429687C3B9C54CE89D189AE8539" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">General Partner Interest Distribution</link:label>
    <link:label id="lab_ns_GeneralPartnerInterestDistribution_F31E9429687C3B9C54CE89D189AE8539_documentation_en-US" xlink:label="lab_ns_GeneralPartnerInterestDistribution_F31E9429687C3B9C54CE89D189AE8539" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Distribution amount earned during the period allocated to the general partner interest.</link:label>
    <link:loc xlink:href="ns-20140331.xsd#ns_GeneralPartnerInterestDistribution" xlink:label="loc_ns_GeneralPartnerInterestDistribution_F31E9429687C3B9C54CE89D189AE8539" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ns_GeneralPartnerInterestDistribution_F31E9429687C3B9C54CE89D189AE8539" xlink:to="lab_ns_GeneralPartnerInterestDistribution_F31E9429687C3B9C54CE89D189AE8539" xlink:type="arc" />
    <link:label id="lab_ns_GeneralPartnerDistributionsIncludingIncentiveDistributions_170EBCFB74828F25CAA489D189AEB32E_totalLabel_en-US" xlink:label="lab_ns_GeneralPartnerDistributionsIncludingIncentiveDistributions_170EBCFB74828F25CAA489D189AEB32E" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xml:lang="en-US">Total general partner distribution</link:label>
    <link:label id="lab_ns_GeneralPartnerDistributionsIncludingIncentiveDistributions_170EBCFB74828F25CAA489D189AEB32E_label_en-US" xlink:label="lab_ns_GeneralPartnerDistributionsIncludingIncentiveDistributions_170EBCFB74828F25CAA489D189AEB32E" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">General Partner Distributions Including Incentive Distributions</link:label>
    <link:label id="lab_ns_GeneralPartnerDistributionsIncludingIncentiveDistributions_170EBCFB74828F25CAA489D189AEB32E_documentation_en-US" xlink:label="lab_ns_GeneralPartnerDistributionsIncludingIncentiveDistributions_170EBCFB74828F25CAA489D189AEB32E" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Distributions to the general partner earned during the period comprised of those allocated to its general partner ownership interest and incentive distribution rights.</link:label>
    <link:loc xlink:href="ns-20140331.xsd#ns_GeneralPartnerDistributionsIncludingIncentiveDistributions" xlink:label="loc_ns_GeneralPartnerDistributionsIncludingIncentiveDistributions_170EBCFB74828F25CAA489D189AEB32E" xlink:type="locator" />
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    <link:label id="lab_ns_LimitedPartnerDistribution_9F0C60B04B7891DA2C3289D189AED333_verboseLabel_en-US" xlink:label="lab_ns_LimitedPartnerDistribution_9F0C60B04B7891DA2C3289D189AED333" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Limited partners' distribution</link:label>
    <link:label id="lab_ns_LimitedPartnerDistribution_9F0C60B04B7891DA2C3289D189AED333_label_en-US" xlink:label="lab_ns_LimitedPartnerDistribution_9F0C60B04B7891DA2C3289D189AED333" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Limited Partner Distribution</link:label>
    <link:label id="lab_ns_LimitedPartnerDistribution_9F0C60B04B7891DA2C3289D189AED333_documentation_en-US" xlink:label="lab_ns_LimitedPartnerDistribution_9F0C60B04B7891DA2C3289D189AED333" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Distribution amount earned during the period allocated to the limited partners.</link:label>
    <link:loc xlink:href="ns-20140331.xsd#ns_LimitedPartnerDistribution" xlink:label="loc_ns_LimitedPartnerDistribution_9F0C60B04B7891DA2C3289D189AED333" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ns_LimitedPartnerDistribution_9F0C60B04B7891DA2C3289D189AED333" xlink:to="lab_ns_LimitedPartnerDistribution_9F0C60B04B7891DA2C3289D189AED333" xlink:type="arc" />
    <link:label id="lab_ns_TotalCashDistributions_F0EADA5A96823719C14989D189AE0360_totalLabel_en-US" xlink:label="lab_ns_TotalCashDistributions_F0EADA5A96823719C14989D189AE0360" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xml:lang="en-US">Total cash distributions</link:label>
    <link:loc xlink:href="ns-20140331.xsd#ns_TotalCashDistributions" xlink:label="loc_ns_TotalCashDistributions_F0EADA5A96823719C14989D189AE0360" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ns_TotalCashDistributions_F0EADA5A96823719C14989D189AE0360" xlink:to="lab_ns_TotalCashDistributions_F0EADA5A96823719C14989D189AE0360" xlink:type="arc" />
    <link:label id="lab_us-gaap_NetCashProvidedByUsedInOperatingActivitiesAbstract_8B92636205AD207CC288D6FC46892F12_terseLabel_en-US" xlink:label="lab_us-gaap_NetCashProvidedByUsedInOperatingActivitiesAbstract_8B92636205AD207CC288D6FC46892F12" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Cash Flows from Operating Activities:</link:label>
    <link:label id="lab_us-gaap_NetCashProvidedByUsedInOperatingActivitiesAbstract_8B92636205AD207CC288D6FC46892F12_label_en-US" xlink:label="lab_us-gaap_NetCashProvidedByUsedInOperatingActivitiesAbstract_8B92636205AD207CC288D6FC46892F12" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Net Cash Provided by (Used in) Operating Activities [Abstract]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_NetCashProvidedByUsedInOperatingActivitiesAbstract" xlink:label="loc_us-gaap_NetCashProvidedByUsedInOperatingActivitiesAbstract_8B92636205AD207CC288D6FC46892F12" xlink:type="locator" />
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    <link:label id="lab_us-gaap_ProfitLoss_A1A33C98596C897845BDD6FC46895382_terseLabel_en-US" xlink:label="lab_us-gaap_ProfitLoss_A1A33C98596C897845BDD6FC46895382" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Net income</link:label>
    <link:label id="lab_us-gaap_ProfitLoss_A1A33C98596C897845BDD6FC46895382_label_en-US" xlink:label="lab_us-gaap_ProfitLoss_A1A33C98596C897845BDD6FC46895382" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Net Income (Loss), Including Portion Attributable to Noncontrolling Interest</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_ProfitLoss" xlink:label="loc_us-gaap_ProfitLoss_A1A33C98596C897845BDD6FC46895382" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_ProfitLoss_A1A33C98596C897845BDD6FC46895382" xlink:to="lab_us-gaap_ProfitLoss_A1A33C98596C897845BDD6FC46895382" xlink:type="arc" />
    <link:label id="lab_us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract_2895B347AEDE03BC507ED6FC46896D70_terseLabel_en-US" xlink:label="lab_us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract_2895B347AEDE03BC507ED6FC46896D70" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Adjustments to reconcile net income (loss) to net cash provided by operating activities:</link:label>
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    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract" xlink:label="loc_us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract_2895B347AEDE03BC507ED6FC46896D70" xlink:type="locator" />
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    <link:label id="lab_ns_DepreciationDepletionAndAmortizationFromContinuingAndDiscontinuedOperations_F097102221429287EF8AD6FC46899E90_terseLabel_en-US" xlink:label="lab_ns_DepreciationDepletionAndAmortizationFromContinuingAndDiscontinuedOperations_F097102221429287EF8AD6FC46899E90" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Depreciation and amortization expense</link:label>
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    <link:label id="lab_us-gaap_DeferredIncomeTaxExpenseBenefit_2B25901E22E7912ECF2CD6FC46894E63_terseLabel_en-US" xlink:label="lab_us-gaap_DeferredIncomeTaxExpenseBenefit_2B25901E22E7912ECF2CD6FC46894E63" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Deferred income tax expense (benefit)</link:label>
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    <link:label id="lab_us-gaap_NetCashProvidedByUsedInOperatingActivities_DDBC4D4B27C6935A2D9ED6FC46890281_totalLabel_en-US" xlink:label="lab_us-gaap_NetCashProvidedByUsedInOperatingActivities_DDBC4D4B27C6935A2D9ED6FC46890281" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xml:lang="en-US">Net cash provided by operating activities</link:label>
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    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_NetCashProvidedByUsedInOperatingActivities" xlink:label="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_DDBC4D4B27C6935A2D9ED6FC46890281" xlink:type="locator" />
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    <link:label id="lab_us-gaap_NetCashProvidedByUsedInInvestingActivitiesAbstract_41AE1A179DCCC0D35C2AD6FC46895461_terseLabel_en-US" xlink:label="lab_us-gaap_NetCashProvidedByUsedInInvestingActivitiesAbstract_41AE1A179DCCC0D35C2AD6FC46895461" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Cash Flows from Investing Activities:</link:label>
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    <link:label id="lab_us-gaap_PaymentsToAcquireProductiveAssets_2C1481216F0B1F39E4CFD6FC46894A1F_negatedLabel_en-US" xlink:label="lab_us-gaap_PaymentsToAcquireProductiveAssets_2C1481216F0B1F39E4CFD6FC46894A1F" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:type="resource" xml:lang="en-US">Capital expenditures</link:label>
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    <link:label id="lab_us-gaap_NetCashProvidedByUsedInFinancingActivitiesAbstract_86522A77E9DEEA30B348D6FC4689DB8B_terseLabel_en-US" xlink:label="lab_us-gaap_NetCashProvidedByUsedInFinancingActivitiesAbstract_86522A77E9DEEA30B348D6FC4689DB8B" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Cash Flows from Financing Activities:</link:label>
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    <link:label id="lab_us-gaap_ProceedsFromIssuanceOfLongTermDebt_3373129ECDDA03E47EEED6FC46891681_terseLabel_en-US" xlink:label="lab_us-gaap_ProceedsFromIssuanceOfLongTermDebt_3373129ECDDA03E47EEED6FC46891681" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Proceeds from long-term debt borrowings</link:label>
    <link:label id="lab_us-gaap_ProceedsFromIssuanceOfLongTermDebt_3373129ECDDA03E47EEED6FC46891681_label_en-US" xlink:label="lab_us-gaap_ProceedsFromIssuanceOfLongTermDebt_3373129ECDDA03E47EEED6FC46891681" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Proceeds from Issuance of Long-term Debt</link:label>
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    <link:label id="lab_us-gaap_ProceedsFromIssuanceOfOtherLongTermDebt_3CF03421D46BD77D4CE4D6FC4689FE25_label_en-US" xlink:label="lab_us-gaap_ProceedsFromIssuanceOfOtherLongTermDebt_3CF03421D46BD77D4CE4D6FC4689FE25" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Proceeds from Issuance of Other Long-term Debt</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_ProceedsFromIssuanceOfOtherLongTermDebt" xlink:label="loc_us-gaap_ProceedsFromIssuanceOfOtherLongTermDebt_3CF03421D46BD77D4CE4D6FC4689FE25" xlink:type="locator" />
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    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_RepaymentsOfLongTermDebt" xlink:label="loc_us-gaap_RepaymentsOfLongTermDebt_B6B9BBABD01627238C79D6FC46898965" xlink:type="locator" />
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    <link:label id="lab_us-gaap_RepaymentsOfShortTermDebt_9C19C469536698C87115D6FC4689A400_negatedLabel_en-US" xlink:label="lab_us-gaap_RepaymentsOfShortTermDebt_9C19C469536698C87115D6FC4689A400" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:type="resource" xml:lang="en-US">Short-term debt repayments</link:label>
    <link:label id="lab_us-gaap_RepaymentsOfShortTermDebt_9C19C469536698C87115D6FC4689A400_label_en-US" xlink:label="lab_us-gaap_RepaymentsOfShortTermDebt_9C19C469536698C87115D6FC4689A400" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Repayments of Short-term Debt</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_RepaymentsOfShortTermDebt" xlink:label="loc_us-gaap_RepaymentsOfShortTermDebt_9C19C469536698C87115D6FC4689A400" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_RepaymentsOfShortTermDebt_9C19C469536698C87115D6FC4689A400" xlink:to="lab_us-gaap_RepaymentsOfShortTermDebt_9C19C469536698C87115D6FC4689A400" xlink:type="arc" />
    <link:label id="lab_us-gaap_ProceedsFromIssuanceOfCommonLimitedPartnersUnits_D0EF9FED7BDDF32BBCC1D6FC46899130_terseLabel_en-US" xlink:label="lab_us-gaap_ProceedsFromIssuanceOfCommonLimitedPartnersUnits_D0EF9FED7BDDF32BBCC1D6FC46899130" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Proceeds from issuance of common units, net of issuance costs</link:label>
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    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_ProceedsFromIssuanceOfCommonLimitedPartnersUnits" xlink:label="loc_us-gaap_ProceedsFromIssuanceOfCommonLimitedPartnersUnits_D0EF9FED7BDDF32BBCC1D6FC46899130" xlink:type="locator" />
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    <link:label id="lab_us-gaap_ProceedsFromPartnershipContribution_D2E10CC57A903AC6E9C9D6FC4689C9BA_terseLabel_en-US" xlink:label="lab_us-gaap_ProceedsFromPartnershipContribution_D2E10CC57A903AC6E9C9D6FC4689C9BA" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Contributions from general partner</link:label>
    <link:label id="lab_us-gaap_ProceedsFromPartnershipContribution_D2E10CC57A903AC6E9C9D6FC4689C9BA_label_en-US" xlink:label="lab_us-gaap_ProceedsFromPartnershipContribution_D2E10CC57A903AC6E9C9D6FC4689C9BA" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Proceeds from Partnership Contribution</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_ProceedsFromPartnershipContribution" xlink:label="loc_us-gaap_ProceedsFromPartnershipContribution_D2E10CC57A903AC6E9C9D6FC4689C9BA" xlink:type="locator" />
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    <link:label id="lab_ns_MaximumAmountGuarantees_475E1E0E6BFBBA7A15DAD7FC676D3727_terseLabel_en-US" xlink:label="lab_ns_MaximumAmountGuarantees_475E1E0E6BFBBA7A15DAD7FC676D3727" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Maximum Amount Guarantees</link:label>
    <link:label id="lab_ns_MaximumAmountGuarantees_475E1E0E6BFBBA7A15DAD7FC676D3727_label_en-US" xlink:label="lab_ns_MaximumAmountGuarantees_475E1E0E6BFBBA7A15DAD7FC676D3727" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Maximum Amount Guarantees</link:label>
    <link:label id="lab_ns_MaximumAmountGuarantees_475E1E0E6BFBBA7A15DAD7FC676D3727_documentation_en-US" xlink:label="lab_ns_MaximumAmountGuarantees_475E1E0E6BFBBA7A15DAD7FC676D3727" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">The maximum amount of guarantees or credit support that can be issued under certain agreements.</link:label>
    <link:loc xlink:href="ns-20140331.xsd#ns_MaximumAmountGuarantees" xlink:label="loc_ns_MaximumAmountGuarantees_475E1E0E6BFBBA7A15DAD7FC676D3727" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ns_MaximumAmountGuarantees_475E1E0E6BFBBA7A15DAD7FC676D3727" xlink:to="lab_ns_MaximumAmountGuarantees_475E1E0E6BFBBA7A15DAD7FC676D3727" xlink:type="arc" />
    <link:label id="lab_ns_ReductioninCreditSupport_0D2E8D85DA3195F26A46D86B17855E67_terseLabel_en-US" xlink:label="lab_ns_ReductioninCreditSupport_0D2E8D85DA3195F26A46D86B17855E67" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Reduction in Credit Support</link:label>
    <link:label id="lab_ns_ReductioninCreditSupport_0D2E8D85DA3195F26A46D86B17855E67_label_en-US" xlink:label="lab_ns_ReductioninCreditSupport_0D2E8D85DA3195F26A46D86B17855E67" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Reduction in Credit Support</link:label>
    <link:label id="lab_ns_ReductioninCreditSupport_0D2E8D85DA3195F26A46D86B17855E67_documentation_en-US" xlink:label="lab_ns_ReductioninCreditSupport_0D2E8D85DA3195F26A46D86B17855E67" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">The amount of reduction of the maximum amount of guarantees or credit support that can be issued under certain agreements.</link:label>
    <link:loc xlink:href="ns-20140331.xsd#ns_ReductioninCreditSupport" xlink:label="loc_ns_ReductioninCreditSupport_0D2E8D85DA3195F26A46D86B17855E67" xlink:type="locator" />
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    <link:label id="lab_us-gaap_GuaranteeObligationsMaximumExposure_526B81933DEF3B18B6A0D7FC676DB867_terseLabel_en-US" xlink:label="lab_us-gaap_GuaranteeObligationsMaximumExposure_526B81933DEF3B18B6A0D7FC676DB867" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Amount of Guarantees Provided</link:label>
    <link:label id="lab_us-gaap_GuaranteeObligationsMaximumExposure_526B81933DEF3B18B6A0D7FC676DB867_label_en-US" xlink:label="lab_us-gaap_GuaranteeObligationsMaximumExposure_526B81933DEF3B18B6A0D7FC676DB867" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Guarantor Obligations, Maximum Exposure, Undiscounted</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_GuaranteeObligationsMaximumExposure" xlink:label="loc_us-gaap_GuaranteeObligationsMaximumExposure_526B81933DEF3B18B6A0D7FC676DB867" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_GuaranteeObligationsMaximumExposure_526B81933DEF3B18B6A0D7FC676DB867" xlink:to="lab_us-gaap_GuaranteeObligationsMaximumExposure_526B81933DEF3B18B6A0D7FC676DB867" xlink:type="arc" />
    <link:label id="lab_ns_NumberOfGuaranteesWithUnlimitedExposure_EDADF86A88FC1169DD50D7FC676D8A00_terseLabel_en-US" xlink:label="lab_ns_NumberOfGuaranteesWithUnlimitedExposure_EDADF86A88FC1169DD50D7FC676D8A00" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Number of Guarantees with Unlimited Exposure</link:label>
    <link:label id="lab_ns_NumberOfGuaranteesWithUnlimitedExposure_EDADF86A88FC1169DD50D7FC676D8A00_label_en-US" xlink:label="lab_ns_NumberOfGuaranteesWithUnlimitedExposure_EDADF86A88FC1169DD50D7FC676D8A00" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Number of Guarantees with Unlimited Exposure</link:label>
    <link:label id="lab_ns_NumberOfGuaranteesWithUnlimitedExposure_EDADF86A88FC1169DD50D7FC676D8A00_documentation_en-US" xlink:label="lab_ns_NumberOfGuaranteesWithUnlimitedExposure_EDADF86A88FC1169DD50D7FC676D8A00" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Number of guarantees that do not specify a maximum amount.</link:label>
    <link:loc xlink:href="ns-20140331.xsd#ns_NumberOfGuaranteesWithUnlimitedExposure" xlink:label="loc_ns_NumberOfGuaranteesWithUnlimitedExposure_EDADF86A88FC1169DD50D7FC676D8A00" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ns_NumberOfGuaranteesWithUnlimitedExposure_EDADF86A88FC1169DD50D7FC676D8A00" xlink:to="lab_ns_NumberOfGuaranteesWithUnlimitedExposure_EDADF86A88FC1169DD50D7FC676D8A00" xlink:type="arc" />
    <link:label id="lab_us-gaap_AdministrativeFeesDescription_B79CF817507C771A9B94D7FC676DB493_terseLabel_en-US" xlink:label="lab_us-gaap_AdministrativeFeesDescription_B79CF817507C771A9B94D7FC676DB493" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Administrative Fees, Description</link:label>
    <link:label id="lab_us-gaap_AdministrativeFeesDescription_B79CF817507C771A9B94D7FC676DB493_label_en-US" xlink:label="lab_us-gaap_AdministrativeFeesDescription_B79CF817507C771A9B94D7FC676DB493" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Administrative Fees, Description</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_AdministrativeFeesDescription" xlink:label="loc_us-gaap_AdministrativeFeesDescription_B79CF817507C771A9B94D7FC676DB493" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_AdministrativeFeesDescription_B79CF817507C771A9B94D7FC676DB493" xlink:to="lab_us-gaap_AdministrativeFeesDescription_B79CF817507C771A9B94D7FC676DB493" xlink:type="arc" />
    <link:label id="lab_ns_AdministrativeAgreementMaturityDate_0EE93EB76032589545A5D7FC676D8190_terseLabel_en-US" xlink:label="lab_ns_AdministrativeAgreementMaturityDate_0EE93EB76032589545A5D7FC676D8190" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Administrative Agreement Maturity Date</link:label>
    <link:label id="lab_ns_AdministrativeAgreementMaturityDate_0EE93EB76032589545A5D7FC676D8190_label_en-US" xlink:label="lab_ns_AdministrativeAgreementMaturityDate_0EE93EB76032589545A5D7FC676D8190" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Administrative Agreement Maturity Date</link:label>
    <link:label id="lab_ns_AdministrativeAgreementMaturityDate_0EE93EB76032589545A5D7FC676D8190_documentation_en-US" xlink:label="lab_ns_AdministrativeAgreementMaturityDate_0EE93EB76032589545A5D7FC676D8190" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Date of maturity or expiration of administrative agreement with a counterparty.</link:label>
    <link:loc xlink:href="ns-20140331.xsd#ns_AdministrativeAgreementMaturityDate" xlink:label="loc_ns_AdministrativeAgreementMaturityDate_0EE93EB76032589545A5D7FC676D8190" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ns_AdministrativeAgreementMaturityDate_0EE93EB76032589545A5D7FC676D8190" xlink:to="lab_ns_AdministrativeAgreementMaturityDate_0EE93EB76032589545A5D7FC676D8190" xlink:type="arc" />
    <link:label id="lab_ns_PercentageofServicesUsedUnderAdministrativeServicesAgreement_0B736C7DF16F98A5461DD7FC676DA42F_terseLabel_en-US" xlink:label="lab_ns_PercentageofServicesUsedUnderAdministrativeServicesAgreement_0B736C7DF16F98A5461DD7FC676DA42F" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Percentage of Services Used Under Agreement with Related Party</link:label>
    <link:label id="lab_ns_PercentageofServicesUsedUnderAdministrativeServicesAgreement_0B736C7DF16F98A5461DD7FC676DA42F_label_en-US" xlink:label="lab_ns_PercentageofServicesUsedUnderAdministrativeServicesAgreement_0B736C7DF16F98A5461DD7FC676DA42F" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Percentage of Services Used Under Administrative Services Agreement</link:label>
    <link:label id="lab_ns_PercentageofServicesUsedUnderAdministrativeServicesAgreement_0B736C7DF16F98A5461DD7FC676DA42F_documentation_en-US" xlink:label="lab_ns_PercentageofServicesUsedUnderAdministrativeServicesAgreement_0B736C7DF16F98A5461DD7FC676DA42F" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Percentage of Services Used Under Administrative Services Agreement</link:label>
    <link:loc xlink:href="ns-20140331.xsd#ns_PercentageofServicesUsedUnderAdministrativeServicesAgreement" xlink:label="loc_ns_PercentageofServicesUsedUnderAdministrativeServicesAgreement_0B736C7DF16F98A5461DD7FC676DA42F" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ns_PercentageofServicesUsedUnderAdministrativeServicesAgreement_0B736C7DF16F98A5461DD7FC676DA42F" xlink:to="lab_ns_PercentageofServicesUsedUnderAdministrativeServicesAgreement_0B736C7DF16F98A5461DD7FC676DA42F" xlink:type="arc" />
    <link:label id="lab_ns_AdministrativeFeesReductionDescription_740BBC6EDF80CF680D38D7FC676DE0D5_terseLabel_en-US" xlink:label="lab_ns_AdministrativeFeesReductionDescription_740BBC6EDF80CF680D38D7FC676DE0D5" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Administrative Fees Reduction Description</link:label>
    <link:label id="lab_ns_AdministrativeFeesReductionDescription_740BBC6EDF80CF680D38D7FC676DE0D5_label_en-US" xlink:label="lab_ns_AdministrativeFeesReductionDescription_740BBC6EDF80CF680D38D7FC676DE0D5" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Administrative Fees Reduction, Description</link:label>
    <link:label id="lab_ns_AdministrativeFeesReductionDescription_740BBC6EDF80CF680D38D7FC676DE0D5_documentation_en-US" xlink:label="lab_ns_AdministrativeFeesReductionDescription_740BBC6EDF80CF680D38D7FC676DE0D5" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Description of the reduction of the payments to a managing member or general partner, affiliate of a managing member or general partner, or affiliate of a limited liability company (LLC) or limited partnership (LP) for administrative services provided to the LLC or LP, for example, but is not limited to, salaries, rent, or other overhead costs.</link:label>
    <link:loc xlink:href="ns-20140331.xsd#ns_AdministrativeFeesReductionDescription" xlink:label="loc_ns_AdministrativeFeesReductionDescription_740BBC6EDF80CF680D38D7FC676DE0D5" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ns_AdministrativeFeesReductionDescription_740BBC6EDF80CF680D38D7FC676DE0D5" xlink:to="lab_ns_AdministrativeFeesReductionDescription_740BBC6EDF80CF680D38D7FC676DE0D5" xlink:type="arc" />
    <link:label id="lab_us-gaap_OffsettingAssetsTable_C862F5EE2EA324A06A2DE68158F66A9B_terseLabel_en-US" xlink:label="lab_us-gaap_OffsettingAssetsTable_C862F5EE2EA324A06A2DE68158F66A9B" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Derivative Assets and Liabilities Eligible for Offset, Net [Table]</link:label>
    <link:label id="lab_us-gaap_OffsettingAssetsTable_C862F5EE2EA324A06A2DE68158F66A9B_label_en-US" xlink:label="lab_us-gaap_OffsettingAssetsTable_C862F5EE2EA324A06A2DE68158F66A9B" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Offsetting Assets [Table]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_OffsettingAssetsTable" xlink:label="loc_us-gaap_OffsettingAssetsTable_C862F5EE2EA324A06A2DE68158F66A9B" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_OffsettingAssetsTable_C862F5EE2EA324A06A2DE68158F66A9B" xlink:to="lab_us-gaap_OffsettingAssetsTable_C862F5EE2EA324A06A2DE68158F66A9B" xlink:type="arc" />
    <link:label id="lab_us-gaap_OffsettingAssetsLineItems_11B1828B589CAB063C8EE68158F61925_terseLabel_en-US" xlink:label="lab_us-gaap_OffsettingAssetsLineItems_11B1828B589CAB063C8EE68158F61925" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Derivative Assets and Liabilities Eligible for Offset, Net [Line Items]</link:label>
    <link:label id="lab_us-gaap_OffsettingAssetsLineItems_11B1828B589CAB063C8EE68158F61925_label_en-US" xlink:label="lab_us-gaap_OffsettingAssetsLineItems_11B1828B589CAB063C8EE68158F61925" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Offsetting Assets [Line Items]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_OffsettingAssetsLineItems" xlink:label="loc_us-gaap_OffsettingAssetsLineItems_11B1828B589CAB063C8EE68158F61925" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_OffsettingAssetsLineItems_11B1828B589CAB063C8EE68158F61925" xlink:to="lab_us-gaap_OffsettingAssetsLineItems_11B1828B589CAB063C8EE68158F61925" xlink:type="arc" />
    <link:label id="lab_us-gaap_DerivativeAssets_7BFBAD711AA03DCAAE78E68158F6246B_terseLabel_en-US" xlink:label="lab_us-gaap_DerivativeAssets_7BFBAD711AA03DCAAE78E68158F6246B" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Net amounts of assets presented in the consolidated balance sheets</link:label>
    <link:label id="lab_us-gaap_DerivativeAssets_7BFBAD711AA03DCAAE78E68158F6246B_label_en-US" xlink:label="lab_us-gaap_DerivativeAssets_7BFBAD711AA03DCAAE78E68158F6246B" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Derivative Asset</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_DerivativeAssets" xlink:label="loc_us-gaap_DerivativeAssets_7BFBAD711AA03DCAAE78E68158F6246B" xlink:type="locator" />
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    <link:label id="lab_us-gaap_DerivativeLiabilities_7B3A4F266AC934DD1394E68158F6BD33_negatedTerseLabel_en-US" xlink:label="lab_us-gaap_DerivativeLiabilities_7B3A4F266AC934DD1394E68158F6BD33" xlink:role="http://www.xbrl.org/2009/role/negatedTerseLabel" xlink:type="resource" xml:lang="en-US">Net amounts of liabilities presented in the consolidated balance sheets</link:label>
    <link:label id="lab_us-gaap_DerivativeLiabilities_7B3A4F266AC934DD1394E68158F6BD33_label_en-US" xlink:label="lab_us-gaap_DerivativeLiabilities_7B3A4F266AC934DD1394E68158F6BD33" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Derivative Liability</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_DerivativeLiabilities" xlink:label="loc_us-gaap_DerivativeLiabilities_7B3A4F266AC934DD1394E68158F6BD33" xlink:type="locator" />
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    <link:label id="lab_ns_ScheduleOfPartnersEquityActivityTable_269BB668E3DC915B416EBEC3299762EF_terseLabel_en-US" xlink:label="lab_ns_ScheduleOfPartnersEquityActivityTable_269BB668E3DC915B416EBEC3299762EF" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Schedule of Partners' Equity Activity [Table]</link:label>
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    <link:label id="lab_us-gaap_ParentMember_4769A2DD9208965942D9BEC3299745CF_terseLabel_en-US" xlink:label="lab_us-gaap_ParentMember_4769A2DD9208965942D9BEC3299745CF" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">NuStar Energy L.P. Partners' Equity</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd#us-gaap_ParentMember" xlink:label="loc_us-gaap_ParentMember_4769A2DD9208965942D9BEC3299745CF" xlink:type="locator" />
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    <link:label id="lab_us-gaap_RevenuesAbstract_DAF2FB842F3500071F78D6FC1CBB6C74_label_en-US" xlink:label="lab_us-gaap_RevenuesAbstract_DAF2FB842F3500071F78D6FC1CBB6C74" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Revenues [Abstract]</link:label>
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    <link:label id="lab_us-gaap_EarningsPerShareBasicLineItems_10C8ABCF6CE7E575CB1EBBDD521FEE4E_terseLabel_en-US" xlink:label="lab_us-gaap_EarningsPerShareBasicLineItems_10C8ABCF6CE7E575CB1EBBDD521FEE4E" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Schedule Of Net Income Per Unit [Line Items]</link:label>
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    <link:label id="lab_ns_GeneralPartnerDistributionsIncludingIncentiveDistributions_FBB7C26D3C092C21BE4BBBDD521F95DB_terseLabel_en-US" xlink:label="lab_ns_GeneralPartnerDistributionsIncludingIncentiveDistributions_FBB7C26D3C092C21BE4BBBDD521F95DB" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Less general partner distribution (including IDR)</link:label>
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    <link:label id="lab_ns_LimitedPartnerDistribution_86B9027D90EF5F3D80DEBBDD521F5EBB_terseLabel_en-US" xlink:label="lab_ns_LimitedPartnerDistribution_86B9027D90EF5F3D80DEBBDD521F5EBB" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Less limited partner distribution</link:label>
    <link:loc xlink:href="ns-20140331.xsd#ns_LimitedPartnerDistribution" xlink:label="loc_ns_LimitedPartnerDistribution_86B9027D90EF5F3D80DEBBDD521F5EBB" xlink:type="locator" />
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    <link:label id="lab_ns_EpuDistributionsLessThanGreaterThanEarnings_C18ED6CF4B697D0F7DABBBDD521F8AD2_totalLabel_en-US" xlink:label="lab_ns_EpuDistributionsLessThanGreaterThanEarnings_C18ED6CF4B697D0F7DABBBDD521F8AD2" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xml:lang="en-US">Distributions less than (in excess of) earnings</link:label>
    <link:label id="lab_ns_EpuDistributionsLessThanGreaterThanEarnings_C18ED6CF4B697D0F7DABBBDD521F8AD2_label_en-US" xlink:label="lab_ns_EpuDistributionsLessThanGreaterThanEarnings_C18ED6CF4B697D0F7DABBBDD521F8AD2" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">EPU Distributions Less Than Greater Than Earnings</link:label>
    <link:label id="lab_ns_EpuDistributionsLessThanGreaterThanEarnings_C18ED6CF4B697D0F7DABBBDD521F8AD2_documentation_en-US" xlink:label="lab_ns_EpuDistributionsLessThanGreaterThanEarnings_C18ED6CF4B697D0F7DABBBDD521F8AD2" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Net income less general and limited partner distributions.</link:label>
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    <link:label id="lab_ns_GeneralPartnerEarningsAbstract_EF6FB4741744CC4C3B30BBDD521FFAC2_terseLabel_en-US" xlink:label="lab_ns_GeneralPartnerEarningsAbstract_EF6FB4741744CC4C3B30BBDD521FFAC2" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">General partner earnings:</link:label>
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    <link:loc xlink:href="ns-20140331.xsd#ns_GeneralPartnerEarningsAbstract" xlink:label="loc_ns_GeneralPartnerEarningsAbstract_EF6FB4741744CC4C3B30BBDD521FFAC2" xlink:type="locator" />
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    <link:label id="lab_ns_GeneralPartnerDistributionsIncludingIncentiveDistributions_319E01980C20316DC7CCBBDD521F2C50_verboseLabel_en-US" xlink:label="lab_ns_GeneralPartnerDistributionsIncludingIncentiveDistributions_319E01980C20316DC7CCBBDD521F2C50" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Distributions</link:label>
    <link:loc xlink:href="ns-20140331.xsd#ns_GeneralPartnerDistributionsIncludingIncentiveDistributions" xlink:label="loc_ns_GeneralPartnerDistributionsIncludingIncentiveDistributions_319E01980C20316DC7CCBBDD521F2C50" xlink:type="locator" />
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    <link:label id="lab_ns_EpuDistributionsLessThanGreaterThanEarningsAllocatedToGeneralPartner_D24E35782B0D8A6CAB45BBDD521FA0CE_terseLabel_en-US" xlink:label="lab_ns_EpuDistributionsLessThanGreaterThanEarningsAllocatedToGeneralPartner_D24E35782B0D8A6CAB45BBDD521FA0CE" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Allocation of distributions less than (in excess of) earnings (2%)</link:label>
    <link:label id="lab_ns_EpuDistributionsLessThanGreaterThanEarningsAllocatedToGeneralPartner_D24E35782B0D8A6CAB45BBDD521FA0CE_label_en-US" xlink:label="lab_ns_EpuDistributionsLessThanGreaterThanEarningsAllocatedToGeneralPartner_D24E35782B0D8A6CAB45BBDD521FA0CE" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">EPU Distributions Less Than Greater Than Earnings Allocated To General Partner</link:label>
    <link:label id="lab_ns_EpuDistributionsLessThanGreaterThanEarningsAllocatedToGeneralPartner_D24E35782B0D8A6CAB45BBDD521FA0CE_documentation_en-US" xlink:label="lab_ns_EpuDistributionsLessThanGreaterThanEarningsAllocatedToGeneralPartner_D24E35782B0D8A6CAB45BBDD521FA0CE" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Distributions less than or (greater than) earnings, allocated to the general partner.</link:label>
    <link:loc xlink:href="ns-20140331.xsd#ns_EpuDistributionsLessThanGreaterThanEarningsAllocatedToGeneralPartner" xlink:label="loc_ns_EpuDistributionsLessThanGreaterThanEarningsAllocatedToGeneralPartner_D24E35782B0D8A6CAB45BBDD521FA0CE" xlink:type="locator" />
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    <link:label id="lab_ns_EpuGeneralPartnerAllocation_ABA8857B0A512D0967CFBBDD521FC5FA_totalLabel_en-US" xlink:label="lab_ns_EpuGeneralPartnerAllocation_ABA8857B0A512D0967CFBBDD521FC5FA" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xml:lang="en-US">Total</link:label>
    <link:label id="lab_ns_EpuGeneralPartnerAllocation_ABA8857B0A512D0967CFBBDD521FC5FA_label_en-US" xlink:label="lab_ns_EpuGeneralPartnerAllocation_ABA8857B0A512D0967CFBBDD521FC5FA" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">EPU General Partner Allocation</link:label>
    <link:label id="lab_ns_EpuGeneralPartnerAllocation_ABA8857B0A512D0967CFBBDD521FC5FA_documentation_en-US" xlink:label="lab_ns_EpuGeneralPartnerAllocation_ABA8857B0A512D0967CFBBDD521FC5FA" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Allocation to the general partner in EPU calculation.</link:label>
    <link:loc xlink:href="ns-20140331.xsd#ns_EpuGeneralPartnerAllocation" xlink:label="loc_ns_EpuGeneralPartnerAllocation_ABA8857B0A512D0967CFBBDD521FC5FA" xlink:type="locator" />
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    <link:label id="lab_ns_LimitedPartnerEarningsAbstract_004BA2A7DACFF71EA9B5BBDD521F6D16_terseLabel_en-US" xlink:label="lab_ns_LimitedPartnerEarningsAbstract_004BA2A7DACFF71EA9B5BBDD521F6D16" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Limited partner earnings:</link:label>
    <link:label id="lab_ns_LimitedPartnerEarningsAbstract_004BA2A7DACFF71EA9B5BBDD521F6D16_label_en-US" xlink:label="lab_ns_LimitedPartnerEarningsAbstract_004BA2A7DACFF71EA9B5BBDD521F6D16" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Limited Partner Earnings [Abstract]</link:label>
    <link:label id="lab_ns_LimitedPartnerEarningsAbstract_004BA2A7DACFF71EA9B5BBDD521F6D16_documentation_en-US" xlink:label="lab_ns_LimitedPartnerEarningsAbstract_004BA2A7DACFF71EA9B5BBDD521F6D16" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Limited Partner Earnings [Abstract]</link:label>
    <link:loc xlink:href="ns-20140331.xsd#ns_LimitedPartnerEarningsAbstract" xlink:label="loc_ns_LimitedPartnerEarningsAbstract_004BA2A7DACFF71EA9B5BBDD521F6D16" xlink:type="locator" />
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    <link:label id="lab_ns_LimitedPartnerDistribution_3C327544EF21417EE5D8BBDD521FAED3_periodEndLabel_en-US" xlink:label="lab_ns_LimitedPartnerDistribution_3C327544EF21417EE5D8BBDD521FAED3" xlink:role="http://www.xbrl.org/2003/role/periodEndLabel" xlink:type="resource" xml:lang="en-US">Distributions</link:label>
    <link:loc xlink:href="ns-20140331.xsd#ns_LimitedPartnerDistribution" xlink:label="loc_ns_LimitedPartnerDistribution_3C327544EF21417EE5D8BBDD521FAED3" xlink:type="locator" />
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    <link:label id="lab_ns_EpuDistributionsLessThanGreaterThanEarningsAllocatedToLimitedPartners_07F4E607F47D592A5B3BBBDD521FE949_terseLabel_en-US" xlink:label="lab_ns_EpuDistributionsLessThanGreaterThanEarningsAllocatedToLimitedPartners_07F4E607F47D592A5B3BBBDD521FE949" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Allocation of distributions less than (in excess of) earnings (98%)</link:label>
    <link:label id="lab_ns_EpuDistributionsLessThanGreaterThanEarningsAllocatedToLimitedPartners_07F4E607F47D592A5B3BBBDD521FE949_label_en-US" xlink:label="lab_ns_EpuDistributionsLessThanGreaterThanEarningsAllocatedToLimitedPartners_07F4E607F47D592A5B3BBBDD521FE949" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">EPU Distributions Less Than Greater Than Earnings Allocated to Limited Partners</link:label>
    <link:label id="lab_ns_EpuDistributionsLessThanGreaterThanEarningsAllocatedToLimitedPartners_07F4E607F47D592A5B3BBBDD521FE949_documentation_en-US" xlink:label="lab_ns_EpuDistributionsLessThanGreaterThanEarningsAllocatedToLimitedPartners_07F4E607F47D592A5B3BBBDD521FE949" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Distributions less than or (greater than) earnings, allocated to the limited partners.</link:label>
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    <link:label id="lab_ns_EpuLimitedPartnersAllocation_B48C45E35CB5910EFACBBBDD521FD934_totalLabel_en-US" xlink:label="lab_ns_EpuLimitedPartnersAllocation_B48C45E35CB5910EFACBBBDD521FD934" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xml:lang="en-US">Total</link:label>
    <link:label id="lab_ns_EpuLimitedPartnersAllocation_B48C45E35CB5910EFACBBBDD521FD934_label_en-US" xlink:label="lab_ns_EpuLimitedPartnersAllocation_B48C45E35CB5910EFACBBBDD521FD934" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">EPU Limited Partners Allocation</link:label>
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    <link:label id="lab_us-gaap_NetIncomeLossPerOutstandingLimitedPartnershipUnitBasicNetOfTax_4551D567CA0CEC173340BBDD521FDAC6_verboseLabel_en-US" xlink:label="lab_us-gaap_NetIncomeLossPerOutstandingLimitedPartnershipUnitBasicNetOfTax_4551D567CA0CEC173340BBDD521FDAC6" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Net income (loss) per unit applicable to limited partners</link:label>
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