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    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_LimitedPartnersCapitalAccountClassDomain_D00C8196EE9C9A6D9295267A386EDF49" xlink:to="lab_us-gaap_LimitedPartnersCapitalAccountClassDomain_D00C8196EE9C9A6D9295267A386EDF49" xlink:type="arc" />
    <link:label id="lab_dk_CommonPublicMember_4A37462C50D9292ADF5C267A386F37D2_terseLabel_en-US" xlink:label="lab_dk_CommonPublicMember_4A37462C50D9292ADF5C267A386F37D2" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Common unitholders - public; 9,109,807 units issued and outstanding at December 31, 2018 (9,088,587 at December 31, 2017)</link:label>
    <link:label id="lab_dk_CommonPublicMember_4A37462C50D9292ADF5C267A386F37D2_label_en-US" xlink:label="lab_dk_CommonPublicMember_4A37462C50D9292ADF5C267A386F37D2" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Common- Public [Member]</link:label>
    <link:label id="lab_dk_CommonPublicMember_4A37462C50D9292ADF5C267A386F37D2_documentation_en-US" xlink:label="lab_dk_CommonPublicMember_4A37462C50D9292ADF5C267A386F37D2" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">A party to a partnership (public) business who has limited liability. In a limited partnership, only one of the partners will be the general partner and have unlimited liability; the other partners will have limited liability.</link:label>
    <link:loc xlink:href="dk-20181231.xsd#dk_CommonPublicMember" xlink:label="loc_dk_CommonPublicMember_4A37462C50D9292ADF5C267A386F37D2" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_dk_CommonPublicMember_4A37462C50D9292ADF5C267A386F37D2" xlink:to="lab_dk_CommonPublicMember_4A37462C50D9292ADF5C267A386F37D2" xlink:type="arc" />
    <link:label id="lab_dk_CommonDelekMember_0B1BCD059EAE8750702E267A38715E53_terseLabel_en-US" xlink:label="lab_dk_CommonDelekMember_0B1BCD059EAE8750702E267A38715E53" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Common unitholders - Delek Holdings; 15,294,046 units issued and outstanding at December 31, 2018 (15,294,046 at December 31, 2017)</link:label>
    <link:label id="lab_dk_CommonDelekMember_0B1BCD059EAE8750702E267A38715E53_label_en-US" xlink:label="lab_dk_CommonDelekMember_0B1BCD059EAE8750702E267A38715E53" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Common- Delek [Member]</link:label>
    <link:label id="lab_dk_CommonDelekMember_0B1BCD059EAE8750702E267A38715E53_documentation_en-US" xlink:label="lab_dk_CommonDelekMember_0B1BCD059EAE8750702E267A38715E53" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">A party to a partnership (Delek) business who has limited liability. In a limited partnership, only one of the partners will be the general partner and have unlimited liability; the other partners will have limited liability.</link:label>
    <link:loc xlink:href="dk-20181231.xsd#dk_CommonDelekMember" xlink:label="loc_dk_CommonDelekMember_0B1BCD059EAE8750702E267A38715E53" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_dk_CommonDelekMember_0B1BCD059EAE8750702E267A38715E53" xlink:to="lab_dk_CommonDelekMember_0B1BCD059EAE8750702E267A38715E53" xlink:type="arc" />
    <link:label id="lab_us-gaap_PartnerTypeOfPartnersCapitalAccountAxis_3FE81502D8EF442B66FD267A38719960_terseLabel_en-US" xlink:label="lab_us-gaap_PartnerTypeOfPartnersCapitalAccountAxis_3FE81502D8EF442B66FD267A38719960" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Partner Type [Axis]</link:label>
    <link:label id="lab_us-gaap_PartnerTypeOfPartnersCapitalAccountAxis_3FE81502D8EF442B66FD267A38719960_label_en-US" xlink:label="lab_us-gaap_PartnerTypeOfPartnersCapitalAccountAxis_3FE81502D8EF442B66FD267A38719960" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Partner Type [Axis]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_PartnerTypeOfPartnersCapitalAccountAxis" xlink:label="loc_us-gaap_PartnerTypeOfPartnersCapitalAccountAxis_3FE81502D8EF442B66FD267A38719960" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_PartnerTypeOfPartnersCapitalAccountAxis_3FE81502D8EF442B66FD267A38719960" xlink:to="lab_us-gaap_PartnerTypeOfPartnersCapitalAccountAxis_3FE81502D8EF442B66FD267A38719960" xlink:type="arc" />
    <link:label id="lab_us-gaap_PartnerTypeOfPartnersCapitalAccountNameDomain_2D3342527221DD318F4D267A3871D5D4_terseLabel_en-US" xlink:label="lab_us-gaap_PartnerTypeOfPartnersCapitalAccountNameDomain_2D3342527221DD318F4D267A3871D5D4" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Partner Type of Partners' Capital Account, Name [Domain]</link:label>
    <link:label id="lab_us-gaap_PartnerTypeOfPartnersCapitalAccountNameDomain_2D3342527221DD318F4D267A3871D5D4_label_en-US" xlink:label="lab_us-gaap_PartnerTypeOfPartnersCapitalAccountNameDomain_2D3342527221DD318F4D267A3871D5D4" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Partner Type of Partners' Capital Account, Name [Domain]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_PartnerTypeOfPartnersCapitalAccountNameDomain" xlink:label="loc_us-gaap_PartnerTypeOfPartnersCapitalAccountNameDomain_2D3342527221DD318F4D267A3871D5D4" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_PartnerTypeOfPartnersCapitalAccountNameDomain_2D3342527221DD318F4D267A3871D5D4" xlink:to="lab_us-gaap_PartnerTypeOfPartnersCapitalAccountNameDomain_2D3342527221DD318F4D267A3871D5D4" xlink:type="arc" />
    <link:label id="lab_us-gaap_LimitedPartnerMember_7261CD0991A9D2513878267A38729E13_terseLabel_en-US" xlink:label="lab_us-gaap_LimitedPartnerMember_7261CD0991A9D2513878267A38729E13" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Limited Partner</link:label>
    <link:label id="lab_us-gaap_LimitedPartnerMember_7261CD0991A9D2513878267A38729E13_label_en-US" xlink:label="lab_us-gaap_LimitedPartnerMember_7261CD0991A9D2513878267A38729E13" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Limited Partner [Member]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_LimitedPartnerMember" xlink:label="loc_us-gaap_LimitedPartnerMember_7261CD0991A9D2513878267A38729E13" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_LimitedPartnerMember_7261CD0991A9D2513878267A38729E13" xlink:to="lab_us-gaap_LimitedPartnerMember_7261CD0991A9D2513878267A38729E13" xlink:type="arc" />
    <link:label id="lab_us-gaap_GeneralPartnerMember_AABDB7069B7CE8AE86E3267A3872964A_terseLabel_en-US" xlink:label="lab_us-gaap_GeneralPartnerMember_AABDB7069B7CE8AE86E3267A3872964A" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">General partner - 498,038 units issued and outstanding at December 31, 2018 (497,604 at December 31, 2017)</link:label>
    <link:label id="lab_us-gaap_GeneralPartnerMember_AABDB7069B7CE8AE86E3267A3872964A_label_en-US" xlink:label="lab_us-gaap_GeneralPartnerMember_AABDB7069B7CE8AE86E3267A3872964A" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">General Partner [Member]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_GeneralPartnerMember" xlink:label="loc_us-gaap_GeneralPartnerMember_AABDB7069B7CE8AE86E3267A3872964A" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_GeneralPartnerMember_AABDB7069B7CE8AE86E3267A3872964A" xlink:to="lab_us-gaap_GeneralPartnerMember_AABDB7069B7CE8AE86E3267A3872964A" xlink:type="arc" />
    <link:label id="lab_us-gaap_StatementLineItems_5196E94DE9274452C503267A3872523F_terseLabel_en-US" xlink:label="lab_us-gaap_StatementLineItems_5196E94DE9274452C503267A3872523F" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Statement [Line Items]</link:label>
    <link:label id="lab_us-gaap_StatementLineItems_5196E94DE9274452C503267A3872523F_label_en-US" xlink:label="lab_us-gaap_StatementLineItems_5196E94DE9274452C503267A3872523F" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Statement [Line Items]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_StatementLineItems" xlink:label="loc_us-gaap_StatementLineItems_5196E94DE9274452C503267A3872523F" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_StatementLineItems_5196E94DE9274452C503267A3872523F" xlink:to="lab_us-gaap_StatementLineItems_5196E94DE9274452C503267A3872523F" xlink:type="arc" />
    <link:label id="lab_us-gaap_AssetsAbstract_4CF153A5FA643685D286267A3872E240_verboseLabel_en-US" xlink:label="lab_us-gaap_AssetsAbstract_4CF153A5FA643685D286267A3872E240" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">ASSETS</link:label>
    <link:label id="lab_us-gaap_AssetsAbstract_4CF153A5FA643685D286267A3872E240_label_en-US" xlink:label="lab_us-gaap_AssetsAbstract_4CF153A5FA643685D286267A3872E240" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Assets [Abstract]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_AssetsAbstract" xlink:label="loc_us-gaap_AssetsAbstract_4CF153A5FA643685D286267A3872E240" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_AssetsAbstract_4CF153A5FA643685D286267A3872E240" xlink:to="lab_us-gaap_AssetsAbstract_4CF153A5FA643685D286267A3872E240" xlink:type="arc" />
    <link:label id="lab_us-gaap_AssetsCurrentAbstract_9268A4D2626344586728267A3872C23B_verboseLabel_en-US" xlink:label="lab_us-gaap_AssetsCurrentAbstract_9268A4D2626344586728267A3872C23B" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Current assets:</link:label>
    <link:label id="lab_us-gaap_AssetsCurrentAbstract_9268A4D2626344586728267A3872C23B_label_en-US" xlink:label="lab_us-gaap_AssetsCurrentAbstract_9268A4D2626344586728267A3872C23B" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Assets, Current [Abstract]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_AssetsCurrentAbstract" xlink:label="loc_us-gaap_AssetsCurrentAbstract_9268A4D2626344586728267A3872C23B" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_AssetsCurrentAbstract_9268A4D2626344586728267A3872C23B" xlink:to="lab_us-gaap_AssetsCurrentAbstract_9268A4D2626344586728267A3872C23B" xlink:type="arc" />
    <link:label id="lab_us-gaap_CashAndCashEquivalentsAtCarryingValue_F32482EEB9BB898BCC8D267A3873012F_verboseLabel_en-US" xlink:label="lab_us-gaap_CashAndCashEquivalentsAtCarryingValue_F32482EEB9BB898BCC8D267A3873012F" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Cash and cash equivalents</link:label>
    <link:label id="lab_us-gaap_CashAndCashEquivalentsAtCarryingValue_F32482EEB9BB898BCC8D267A3873012F_label_en-US" xlink:label="lab_us-gaap_CashAndCashEquivalentsAtCarryingValue_F32482EEB9BB898BCC8D267A3873012F" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Cash and Cash Equivalents, at Carrying Value</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_CashAndCashEquivalentsAtCarryingValue" xlink:label="loc_us-gaap_CashAndCashEquivalentsAtCarryingValue_F32482EEB9BB898BCC8D267A3873012F" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_CashAndCashEquivalentsAtCarryingValue_F32482EEB9BB898BCC8D267A3873012F" xlink:to="lab_us-gaap_CashAndCashEquivalentsAtCarryingValue_F32482EEB9BB898BCC8D267A3873012F" xlink:type="arc" />
    <link:label id="lab_us-gaap_AccountsReceivableNetCurrent_824038414A0C1934C833267A387350CA_verboseLabel_en-US" xlink:label="lab_us-gaap_AccountsReceivableNetCurrent_824038414A0C1934C833267A387350CA" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Accounts receivable</link:label>
    <link:label id="lab_us-gaap_AccountsReceivableNetCurrent_824038414A0C1934C833267A387350CA_label_en-US" xlink:label="lab_us-gaap_AccountsReceivableNetCurrent_824038414A0C1934C833267A387350CA" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Accounts Receivable, Net, Current</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_AccountsReceivableNetCurrent" xlink:label="loc_us-gaap_AccountsReceivableNetCurrent_824038414A0C1934C833267A387350CA" xlink:type="locator" />
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    <link:label id="lab_us-gaap_DueFromRelatedPartiesCurrent_9FD9ACF64863EC354D4E267A3873A913_terseLabel_en-US" xlink:label="lab_us-gaap_DueFromRelatedPartiesCurrent_9FD9ACF64863EC354D4E267A3873A913" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Accounts receivable from related parties</link:label>
    <link:label id="lab_us-gaap_DueFromRelatedPartiesCurrent_9FD9ACF64863EC354D4E267A3873A913_label_en-US" xlink:label="lab_us-gaap_DueFromRelatedPartiesCurrent_9FD9ACF64863EC354D4E267A3873A913" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Due from Related Parties, Current</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_DueFromRelatedPartiesCurrent" xlink:label="loc_us-gaap_DueFromRelatedPartiesCurrent_9FD9ACF64863EC354D4E267A3873A913" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_DueFromRelatedPartiesCurrent_9FD9ACF64863EC354D4E267A3873A913" xlink:to="lab_us-gaap_DueFromRelatedPartiesCurrent_9FD9ACF64863EC354D4E267A3873A913" xlink:type="arc" />
    <link:label id="lab_us-gaap_InventoryNet_893DDE18944CD51C14D4267A3873B691_terseLabel_en-US" xlink:label="lab_us-gaap_InventoryNet_893DDE18944CD51C14D4267A3873B691" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Inventory</link:label>
    <link:label id="lab_us-gaap_InventoryNet_893DDE18944CD51C14D4267A3873B691_label_en-US" xlink:label="lab_us-gaap_InventoryNet_893DDE18944CD51C14D4267A3873B691" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Inventory, Net</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_InventoryNet" xlink:label="loc_us-gaap_InventoryNet_893DDE18944CD51C14D4267A3873B691" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_InventoryNet_893DDE18944CD51C14D4267A3873B691" xlink:to="lab_us-gaap_InventoryNet_893DDE18944CD51C14D4267A3873B691" xlink:type="arc" />
    <link:label id="lab_us-gaap_OtherAssetsCurrent_DA626D51FB05DA06CBF4267A38745F6E_terseLabel_en-US" xlink:label="lab_us-gaap_OtherAssetsCurrent_DA626D51FB05DA06CBF4267A38745F6E" 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_OtherAssetsCurrent_DA626D51FB05DA06CBF4267A38745F6E_label_en-US" xlink:label="lab_us-gaap_OtherAssetsCurrent_DA626D51FB05DA06CBF4267A38745F6E" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Other Assets, Current</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_OtherAssetsCurrent" xlink:label="loc_us-gaap_OtherAssetsCurrent_DA626D51FB05DA06CBF4267A38745F6E" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_OtherAssetsCurrent_DA626D51FB05DA06CBF4267A38745F6E" xlink:to="lab_us-gaap_OtherAssetsCurrent_DA626D51FB05DA06CBF4267A38745F6E" xlink:type="arc" />
    <link:label id="lab_us-gaap_AssetsCurrent_743B263F9D7F609020E0267A38745079_totalLabel_en-US" xlink:label="lab_us-gaap_AssetsCurrent_743B263F9D7F609020E0267A38745079" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xml:lang="en-US">Total current assets</link:label>
    <link:label id="lab_us-gaap_AssetsCurrent_743B263F9D7F609020E0267A38745079_label_en-US" xlink:label="lab_us-gaap_AssetsCurrent_743B263F9D7F609020E0267A38745079" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Assets, Current</link:label>
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    <link:label id="lab_us-gaap_ConcentrationRiskLineItems_D3F0D27242EA587712F49546439918D3_terseLabel_en-US" xlink:label="lab_us-gaap_ConcentrationRiskLineItems_D3F0D27242EA587712F49546439918D3" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Concentration Risk [Line Items]</link:label>
    <link:label id="lab_us-gaap_ConcentrationRiskLineItems_D3F0D27242EA587712F49546439918D3_label_en-US" xlink:label="lab_us-gaap_ConcentrationRiskLineItems_D3F0D27242EA587712F49546439918D3" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Concentration Risk [Line Items]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ConcentrationRiskLineItems" xlink:label="loc_us-gaap_ConcentrationRiskLineItems_D3F0D27242EA587712F49546439918D3" xlink:type="locator" />
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    <link:label id="lab_dk_NumberofVendors_5BAE17A53000AD14E34195464399E294_terseLabel_en-US" xlink:label="lab_dk_NumberofVendors_5BAE17A53000AD14E34195464399E294" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Number of vendors</link:label>
    <link:label id="lab_dk_NumberofVendors_5BAE17A53000AD14E34195464399E294_label_en-US" xlink:label="lab_dk_NumberofVendors_5BAE17A53000AD14E34195464399E294" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Number of Vendors</link:label>
    <link:label id="lab_dk_NumberofVendors_5BAE17A53000AD14E34195464399E294_documentation_en-US" xlink:label="lab_dk_NumberofVendors_5BAE17A53000AD14E34195464399E294" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Represents the number of suppliers.</link:label>
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    <link:label id="lab_us-gaap_GeneralPartnerMember_E92D900E95177231155082B174CD6E78_verboseLabel_en-US" xlink:label="lab_us-gaap_GeneralPartnerMember_E92D900E95177231155082B174CD6E78" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">General Partner</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_GeneralPartnerMember" xlink:label="loc_us-gaap_GeneralPartnerMember_E92D900E95177231155082B174CD6E78" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_GeneralPartnerMember_E92D900E95177231155082B174CD6E78" xlink:to="lab_us-gaap_GeneralPartnerMember_E92D900E95177231155082B174CD6E78" xlink:type="arc" />
    <link:label id="lab_dk_CommonPublicMember_2696CB7D5580E9CAC71E82B174CD1194_verboseLabel_en-US" xlink:label="lab_dk_CommonPublicMember_2696CB7D5580E9CAC71E82B174CD1194" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Common - Public</link:label>
    <link:loc xlink:href="dk-20181231.xsd#dk_CommonPublicMember" xlink:label="loc_dk_CommonPublicMember_2696CB7D5580E9CAC71E82B174CD1194" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_dk_CommonPublicMember_2696CB7D5580E9CAC71E82B174CD1194" xlink:to="lab_dk_CommonPublicMember_2696CB7D5580E9CAC71E82B174CD1194" xlink:type="arc" />
    <link:label id="lab_dk_CommonDelekMember_20A97CCAF547E656489282B174CE4C1A_verboseLabel_en-US" xlink:label="lab_dk_CommonDelekMember_20A97CCAF547E656489282B174CE4C1A" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Common - Delek Holdings</link:label>
    <link:loc xlink:href="dk-20181231.xsd#dk_CommonDelekMember" xlink:label="loc_dk_CommonDelekMember_20A97CCAF547E656489282B174CE4C1A" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_dk_CommonDelekMember_20A97CCAF547E656489282B174CE4C1A" xlink:to="lab_dk_CommonDelekMember_20A97CCAF547E656489282B174CE4C1A" xlink:type="arc" />
    <link:label id="lab_us-gaap_PartnersCapitalAccountUnits_C98E54279FDE9D24585A82B174CE60D2_terseLabel_en-US" xlink:label="lab_us-gaap_PartnersCapitalAccountUnits_C98E54279FDE9D24585A82B174CE60D2" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Common unitholders, issued (in units)</link:label>
    <link:label id="lab_us-gaap_PartnersCapitalAccountUnits_C98E54279FDE9D24585A82B174CE60D2_label_en-US" xlink:label="lab_us-gaap_PartnersCapitalAccountUnits_C98E54279FDE9D24585A82B174CE60D2" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Partners' Capital Account, Units</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_PartnersCapitalAccountUnits" xlink:label="loc_us-gaap_PartnersCapitalAccountUnits_C98E54279FDE9D24585A82B174CE60D2" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_PartnersCapitalAccountUnits_C98E54279FDE9D24585A82B174CE60D2" xlink:to="lab_us-gaap_PartnersCapitalAccountUnits_C98E54279FDE9D24585A82B174CE60D2" xlink:type="arc" />
    <link:label id="lab_us-gaap_GeneralPartnersCapitalAccountUnitsIssued_676AC99607525F26DA4A82B174CFCCA5_terseLabel_en-US" xlink:label="lab_us-gaap_GeneralPartnersCapitalAccountUnitsIssued_676AC99607525F26DA4A82B174CFCCA5" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">General partner, issued (in units)</link:label>
    <link:label id="lab_us-gaap_GeneralPartnersCapitalAccountUnitsIssued_676AC99607525F26DA4A82B174CFCCA5_label_en-US" xlink:label="lab_us-gaap_GeneralPartnersCapitalAccountUnitsIssued_676AC99607525F26DA4A82B174CFCCA5" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">General Partners' Capital Account, Units Issued</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_GeneralPartnersCapitalAccountUnitsIssued" xlink:label="loc_us-gaap_GeneralPartnersCapitalAccountUnitsIssued_676AC99607525F26DA4A82B174CFCCA5" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_GeneralPartnersCapitalAccountUnitsIssued_676AC99607525F26DA4A82B174CFCCA5" xlink:to="lab_us-gaap_GeneralPartnersCapitalAccountUnitsIssued_676AC99607525F26DA4A82B174CFCCA5" xlink:type="arc" />
    <link:label id="lab_us-gaap_LimitedPartnersCapitalAccountUnitsOutstanding_4FD89B0946F5132ED85A82B174CF2463_verboseLabel_en-US" xlink:label="lab_us-gaap_LimitedPartnersCapitalAccountUnitsOutstanding_4FD89B0946F5132ED85A82B174CF2463" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Common unitholders, outstanding (in units)</link:label>
    <link:label id="lab_us-gaap_LimitedPartnersCapitalAccountUnitsOutstanding_4FD89B0946F5132ED85A82B174CF2463_label_en-US" xlink:label="lab_us-gaap_LimitedPartnersCapitalAccountUnitsOutstanding_4FD89B0946F5132ED85A82B174CF2463" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Limited Partners' Capital Account, Units Outstanding</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_LimitedPartnersCapitalAccountUnitsOutstanding" xlink:label="loc_us-gaap_LimitedPartnersCapitalAccountUnitsOutstanding_4FD89B0946F5132ED85A82B174CF2463" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_LimitedPartnersCapitalAccountUnitsOutstanding_4FD89B0946F5132ED85A82B174CF2463" xlink:to="lab_us-gaap_LimitedPartnersCapitalAccountUnitsOutstanding_4FD89B0946F5132ED85A82B174CF2463" xlink:type="arc" />
    <link:label id="lab_us-gaap_GeneralPartnersCapitalAccountUnitsOutstanding_650F55E34646EA5215AC82B174CFDD4B_terseLabel_en-US" xlink:label="lab_us-gaap_GeneralPartnersCapitalAccountUnitsOutstanding_650F55E34646EA5215AC82B174CFDD4B" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">General partner, outstanding (in units)</link:label>
    <link:label id="lab_us-gaap_GeneralPartnersCapitalAccountUnitsOutstanding_650F55E34646EA5215AC82B174CFDD4B_label_en-US" xlink:label="lab_us-gaap_GeneralPartnersCapitalAccountUnitsOutstanding_650F55E34646EA5215AC82B174CFDD4B" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">General Partners' Capital Account, Units Outstanding</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_GeneralPartnersCapitalAccountUnitsOutstanding" xlink:label="loc_us-gaap_GeneralPartnersCapitalAccountUnitsOutstanding_650F55E34646EA5215AC82B174CFDD4B" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_GeneralPartnersCapitalAccountUnitsOutstanding_650F55E34646EA5215AC82B174CFDD4B" xlink:to="lab_us-gaap_GeneralPartnersCapitalAccountUnitsOutstanding_650F55E34646EA5215AC82B174CFDD4B" xlink:type="arc" />
    <link:label id="lab_dk_CommonUnitsMember_A9A78C3C2CCF0CCE53E380899FC09253_terseLabel_en-US" xlink:label="lab_dk_CommonUnitsMember_A9A78C3C2CCF0CCE53E380899FC09253" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Common Units</link:label>
    <link:label id="lab_dk_CommonUnitsMember_A9A78C3C2CCF0CCE53E380899FC09253_label_en-US" xlink:label="lab_dk_CommonUnitsMember_A9A78C3C2CCF0CCE53E380899FC09253" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Common Units [Member]</link:label>
    <link:label id="lab_dk_CommonUnitsMember_A9A78C3C2CCF0CCE53E380899FC09253_documentation_en-US" xlink:label="lab_dk_CommonUnitsMember_A9A78C3C2CCF0CCE53E380899FC09253" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Common Units [Member]</link:label>
    <link:loc xlink:href="dk-20181231.xsd#dk_CommonUnitsMember" xlink:label="loc_dk_CommonUnitsMember_A9A78C3C2CCF0CCE53E380899FC09253" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_dk_CommonUnitsMember_A9A78C3C2CCF0CCE53E380899FC09253" xlink:to="lab_dk_CommonUnitsMember_A9A78C3C2CCF0CCE53E380899FC09253" xlink:type="arc" />
    <link:label id="lab_us-gaap_Revenues_A9EC1ADDC4E445D9926080899FC1C439_terseLabel_en-US" xlink:label="lab_us-gaap_Revenues_A9EC1ADDC4E445D9926080899FC1C439" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Net revenues</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_Revenues" xlink:label="loc_us-gaap_Revenues_A9EC1ADDC4E445D9926080899FC1C439" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_Revenues_A9EC1ADDC4E445D9926080899FC1C439" xlink:to="lab_us-gaap_Revenues_A9EC1ADDC4E445D9926080899FC1C439" xlink:type="arc" />
    <link:label id="lab_us-gaap_OperatingIncomeLoss_888D61F224CA2DC6B0E480899FBFEACE_verboseLabel_en-US" xlink:label="lab_us-gaap_OperatingIncomeLoss_888D61F224CA2DC6B0E480899FBFEACE" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Operating income</link:label>
    <link:label id="lab_us-gaap_OperatingIncomeLoss_888D61F224CA2DC6B0E480899FBFEACE_label_en-US" xlink:label="lab_us-gaap_OperatingIncomeLoss_888D61F224CA2DC6B0E480899FBFEACE" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Operating Income (Loss)</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_OperatingIncomeLoss" xlink:label="loc_us-gaap_OperatingIncomeLoss_888D61F224CA2DC6B0E480899FBFEACE" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_OperatingIncomeLoss_888D61F224CA2DC6B0E480899FBFEACE" xlink:to="lab_us-gaap_OperatingIncomeLoss_888D61F224CA2DC6B0E480899FBFEACE" xlink:type="arc" />
    <link:label id="lab_us-gaap_NetIncomeLoss_D9029E85344B97F3C9DC80899FBF5604_terseLabel_en-US" xlink:label="lab_us-gaap_NetIncomeLoss_D9029E85344B97F3C9DC80899FBF5604" 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_NetIncomeLoss_D9029E85344B97F3C9DC80899FBF5604_label_en-US" xlink:label="lab_us-gaap_NetIncomeLoss_D9029E85344B97F3C9DC80899FBF5604" 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/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_NetIncomeLoss" xlink:label="loc_us-gaap_NetIncomeLoss_D9029E85344B97F3C9DC80899FBF5604" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_NetIncomeLoss_D9029E85344B97F3C9DC80899FBF5604" xlink:to="lab_us-gaap_NetIncomeLoss_D9029E85344B97F3C9DC80899FBF5604" xlink:type="arc" />
    <link:label id="lab_us-gaap_NetIncomeLossAllocatedToLimitedPartners_76B2FADDC8628C99CAF280899FBF2CD3_terseLabel_en-US" xlink:label="lab_us-gaap_NetIncomeLossAllocatedToLimitedPartners_76B2FADDC8628C99CAF280899FBF2CD3" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Limited partners' interest in net income</link:label>
    <link:label id="lab_us-gaap_NetIncomeLossAllocatedToLimitedPartners_76B2FADDC8628C99CAF280899FBF2CD3_label_en-US" xlink:label="lab_us-gaap_NetIncomeLossAllocatedToLimitedPartners_76B2FADDC8628C99CAF280899FBF2CD3" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Net Income (Loss) Allocated to Limited Partners</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_NetIncomeLossAllocatedToLimitedPartners" xlink:label="loc_us-gaap_NetIncomeLossAllocatedToLimitedPartners_76B2FADDC8628C99CAF280899FBF2CD3" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_NetIncomeLossAllocatedToLimitedPartners_76B2FADDC8628C99CAF280899FBF2CD3" xlink:to="lab_us-gaap_NetIncomeLossAllocatedToLimitedPartners_76B2FADDC8628C99CAF280899FBF2CD3" xlink:type="arc" />
    <link:label id="lab_dk_NetIncomePerLimitedPartnerUnitAbstract_C5EFDCB24F98174B215980BCF47A8F2D_terseLabel_en-US" xlink:label="lab_dk_NetIncomePerLimitedPartnerUnitAbstract_C5EFDCB24F98174B215980BCF47A8F2D" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Net income per limited partner unit:</link:label>
    <link:label id="lab_dk_NetIncomePerLimitedPartnerUnitAbstract_C5EFDCB24F98174B215980BCF47A8F2D_label_en-US" xlink:label="lab_dk_NetIncomePerLimitedPartnerUnitAbstract_C5EFDCB24F98174B215980BCF47A8F2D" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Net income per limited partner unit: [Abstract]</link:label>
    <link:label id="lab_dk_NetIncomePerLimitedPartnerUnitAbstract_C5EFDCB24F98174B215980BCF47A8F2D_documentation_en-US" xlink:label="lab_dk_NetIncomePerLimitedPartnerUnitAbstract_C5EFDCB24F98174B215980BCF47A8F2D" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Net income per limited partner unit: [Abstract]</link:label>
    <link:loc xlink:href="dk-20181231.xsd#dk_NetIncomePerLimitedPartnerUnitAbstract" xlink:label="loc_dk_NetIncomePerLimitedPartnerUnitAbstract_C5EFDCB24F98174B215980BCF47A8F2D" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_dk_NetIncomePerLimitedPartnerUnitAbstract_C5EFDCB24F98174B215980BCF47A8F2D" xlink:to="lab_dk_NetIncomePerLimitedPartnerUnitAbstract_C5EFDCB24F98174B215980BCF47A8F2D" xlink:type="arc" />
    <link:label id="lab_us-gaap_NetIncomeLossPerOutstandingLimitedPartnershipUnitBasicNetOfTax_434C7AC45DAF44934FD380899FC1F18A_terseLabel_en-US" xlink:label="lab_us-gaap_NetIncomeLossPerOutstandingLimitedPartnershipUnitBasicNetOfTax_434C7AC45DAF44934FD380899FC1F18A" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Common (basic) (in usd per unit)</link:label>
    <link:label id="lab_us-gaap_NetIncomeLossPerOutstandingLimitedPartnershipUnitBasicNetOfTax_434C7AC45DAF44934FD380899FC1F18A_label_en-US" xlink:label="lab_us-gaap_NetIncomeLossPerOutstandingLimitedPartnershipUnitBasicNetOfTax_434C7AC45DAF44934FD380899FC1F18A" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Net Income (Loss), Per Outstanding Limited Partnership Unit, Basic, Net of Tax</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_NetIncomeLossPerOutstandingLimitedPartnershipUnitBasicNetOfTax" xlink:label="loc_us-gaap_NetIncomeLossPerOutstandingLimitedPartnershipUnitBasicNetOfTax_434C7AC45DAF44934FD380899FC1F18A" xlink:type="locator" />
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    <link:label id="lab_dk_SubordinatedDelekMember_BB356E120E42DF5A076DED07BA081350_documentation_en-US" xlink:label="lab_dk_SubordinatedDelekMember_BB356E120E42DF5A076DED07BA081350" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">A party to a partnership (subordinated- Delek) business who has limited liability. In a limited partnership, only one of the partners will be the general partner and have unlimited liability; the other partners will have limited liability.</link:label>
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    <link:label id="lab_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_97A24ED8DFF1DC3D62B9ED07BA082BF8_terseLabel_en-US" xlink:label="lab_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_97A24ED8DFF1DC3D62B9ED07BA082BF8" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Increase (Decrease) in Stockholders' Equity [Roll Forward]</link:label>
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    <link:label id="lab_us-gaap_PartnersCapital_D985D5E4536F6AC907DDED07BA08AEFF_periodStartLabel_en-US" xlink:label="lab_us-gaap_PartnersCapital_D985D5E4536F6AC907DDED07BA08AEFF" xlink:role="http://www.xbrl.org/2003/role/periodStartLabel" xlink:type="resource" xml:lang="en-US">Beginning balance</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_PartnersCapital" xlink:label="loc_us-gaap_PartnersCapital_D985D5E4536F6AC907DDED07BA08AEFF" xlink:type="locator" />
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    <link:label id="lab_us-gaap_PartnersCapitalAccountAcquisitions_CF322E914C68149A540FED07BA094C81_terseLabel_en-US" xlink:label="lab_us-gaap_PartnersCapitalAccountAcquisitions_CF322E914C68149A540FED07BA094C81" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Distributions to Delek Holdings for Big Spring Asset Acquisition</link:label>
    <link:label id="lab_us-gaap_PartnersCapitalAccountAcquisitions_CF322E914C68149A540FED07BA094C81_label_en-US" xlink:label="lab_us-gaap_PartnersCapitalAccountAcquisitions_CF322E914C68149A540FED07BA094C81" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Partners' Capital Account, Acquisitions</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_PartnersCapitalAccountAcquisitions" xlink:label="loc_us-gaap_PartnersCapitalAccountAcquisitions_CF322E914C68149A540FED07BA094C81" xlink:type="locator" />
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    <link:label id="lab_us-gaap_PartnersCapitalAccountDistributions_C2323515C9B0FA2AAA5EED07BA0CF464_negatedTerseLabel_en-US" xlink:label="lab_us-gaap_PartnersCapitalAccountDistributions_C2323515C9B0FA2AAA5EED07BA0CF464" xlink:role="http://www.xbrl.org/2009/role/negatedTerseLabel" xlink:type="resource" xml:lang="en-US">Cash distributions</link:label>
    <link:label id="lab_us-gaap_PartnersCapitalAccountDistributions_C2323515C9B0FA2AAA5EED07BA0CF464_label_en-US" xlink:label="lab_us-gaap_PartnersCapitalAccountDistributions_C2323515C9B0FA2AAA5EED07BA0CF464" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Partners' Capital Account, Distributions</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_PartnersCapitalAccountDistributions" xlink:label="loc_us-gaap_PartnersCapitalAccountDistributions_C2323515C9B0FA2AAA5EED07BA0CF464" xlink:type="locator" />
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    <link:label id="lab_dk_PartnersCapitalAccountGeneralPartnerUnitsIssuedToMaintainInterestPercentage_9324205A60F7C09D04FAED07BA0C0017_negatedTerseLabel_en-US" xlink:label="lab_dk_PartnersCapitalAccountGeneralPartnerUnitsIssuedToMaintainInterestPercentage_9324205A60F7C09D04FAED07BA0C0017" xlink:role="http://www.xbrl.org/2009/role/negatedTerseLabel" xlink:type="resource" xml:lang="en-US">GP Units Issued to maintain 2% interest</link:label>
    <link:label id="lab_dk_PartnersCapitalAccountGeneralPartnerUnitsIssuedToMaintainInterestPercentage_9324205A60F7C09D04FAED07BA0C0017_label_en-US" xlink:label="lab_dk_PartnersCapitalAccountGeneralPartnerUnitsIssuedToMaintainInterestPercentage_9324205A60F7C09D04FAED07BA0C0017" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Partners' Capital Account, General Partner Units Issued To Maintain Interest Percentage</link:label>
    <link:label id="lab_dk_PartnersCapitalAccountGeneralPartnerUnitsIssuedToMaintainInterestPercentage_9324205A60F7C09D04FAED07BA0C0017_documentation_en-US" xlink:label="lab_dk_PartnersCapitalAccountGeneralPartnerUnitsIssuedToMaintainInterestPercentage_9324205A60F7C09D04FAED07BA0C0017" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Partners' Capital Account, General Partner Units Issued To Maintain Interest Percentage</link:label>
    <link:loc xlink:href="dk-20181231.xsd#dk_PartnersCapitalAccountGeneralPartnerUnitsIssuedToMaintainInterestPercentage" xlink:label="loc_dk_PartnersCapitalAccountGeneralPartnerUnitsIssuedToMaintainInterestPercentage_9324205A60F7C09D04FAED07BA0C0017" xlink:type="locator" />
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    <link:label id="lab_dk_Noncashfixedassetscontributionstounitholders_0B0AF8B0A13576D29CB0ED07BA0C5881_terseLabel_en-US" xlink:label="lab_dk_Noncashfixedassetscontributionstounitholders_0B0AF8B0A13576D29CB0ED07BA0C5881" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Sponsorship contribution of fixed assets</link:label>
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    <link:label id="lab_dk_Noncashfixedassetscontributionstounitholders_0B0AF8B0A13576D29CB0ED07BA0C5881_documentation_en-US" xlink:label="lab_dk_Noncashfixedassetscontributionstounitholders_0B0AF8B0A13576D29CB0ED07BA0C5881" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Non-cash fixed assets contributions to unitholders</link:label>
    <link:loc xlink:href="dk-20181231.xsd#dk_Noncashfixedassetscontributionstounitholders" xlink:label="loc_dk_Noncashfixedassetscontributionstounitholders_0B0AF8B0A13576D29CB0ED07BA0C5881" xlink:type="locator" />
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    <link:label id="lab_us-gaap_PartnersCapitalAccountUnitBasedCompensation_68AA9AA57EF38C0192BFED07BA124965_terseLabel_en-US" xlink:label="lab_us-gaap_PartnersCapitalAccountUnitBasedCompensation_68AA9AA57EF38C0192BFED07BA124965" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Unit-based compensation</link:label>
    <link:label id="lab_us-gaap_PartnersCapitalAccountUnitBasedCompensation_68AA9AA57EF38C0192BFED07BA124965_label_en-US" xlink:label="lab_us-gaap_PartnersCapitalAccountUnitBasedCompensation_68AA9AA57EF38C0192BFED07BA124965" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Partners' Capital Account, Unit-based Compensation</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_PartnersCapitalAccountUnitBasedCompensation" xlink:label="loc_us-gaap_PartnersCapitalAccountUnitBasedCompensation_68AA9AA57EF38C0192BFED07BA124965" xlink:type="locator" />
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    <link:label id="lab_us-gaap_PartnersCapitalAccountExchangesAndConversions_555D4920AD83EAB2DB60ED07BA129D6E_terseLabel_en-US" xlink:label="lab_us-gaap_PartnersCapitalAccountExchangesAndConversions_555D4920AD83EAB2DB60ED07BA129D6E" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Subordinated unit conversion</link:label>
    <link:label id="lab_us-gaap_PartnersCapitalAccountExchangesAndConversions_555D4920AD83EAB2DB60ED07BA129D6E_label_en-US" xlink:label="lab_us-gaap_PartnersCapitalAccountExchangesAndConversions_555D4920AD83EAB2DB60ED07BA129D6E" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Partners' Capital Account, Exchanges and Conversions</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_PartnersCapitalAccountExchangesAndConversions" xlink:label="loc_us-gaap_PartnersCapitalAccountExchangesAndConversions_555D4920AD83EAB2DB60ED07BA129D6E" xlink:type="locator" />
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    <link:label id="lab_dk_PartnersCapitalAccountUnitsPurchased_0000D162CA32AB585918ED07BA12F0AC_negatedTerseLabel_en-US" xlink:label="lab_dk_PartnersCapitalAccountUnitsPurchased_0000D162CA32AB585918ED07BA12F0AC" xlink:role="http://www.xbrl.org/2009/role/negatedTerseLabel" xlink:type="resource" xml:lang="en-US">Distributions to unitholders and general partner related to acquisitions</link:label>
    <link:label id="lab_dk_PartnersCapitalAccountUnitsPurchased_0000D162CA32AB585918ED07BA12F0AC_label_en-US" xlink:label="lab_dk_PartnersCapitalAccountUnitsPurchased_0000D162CA32AB585918ED07BA12F0AC" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Partners' Capital Account, Units Purchased</link:label>
    <link:label id="lab_dk_PartnersCapitalAccountUnitsPurchased_0000D162CA32AB585918ED07BA12F0AC_documentation_en-US" xlink:label="lab_dk_PartnersCapitalAccountUnitsPurchased_0000D162CA32AB585918ED07BA12F0AC" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Value of previously issued common public units purchased by affiliated limited partner.</link:label>
    <link:loc xlink:href="dk-20181231.xsd#dk_PartnersCapitalAccountUnitsPurchased" xlink:label="loc_dk_PartnersCapitalAccountUnitsPurchased_0000D162CA32AB585918ED07BA12F0AC" xlink:type="locator" />
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    <link:label id="lab_us-gaap_PartnersCapitalOther_F0822F36E74CBD04DEC4ED07BA120D40_terseLabel_en-US" xlink:label="lab_us-gaap_PartnersCapitalOther_F0822F36E74CBD04DEC4ED07BA120D40" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Net income attributable to partners</link:label>
    <link:label id="lab_us-gaap_PartnersCapitalOther_F0822F36E74CBD04DEC4ED07BA120D40_label_en-US" xlink:label="lab_us-gaap_PartnersCapitalOther_F0822F36E74CBD04DEC4ED07BA120D40" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Partners' Capital, Other</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_PartnersCapitalOther" xlink:label="loc_us-gaap_PartnersCapitalOther_F0822F36E74CBD04DEC4ED07BA120D40" xlink:type="locator" />
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    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_PartnersCapital" xlink:label="loc_us-gaap_PartnersCapital_480F46D3C95E4D2B3DA0ED07BA13DC20" xlink:type="locator" />
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    <link:label id="lab_dk_Distributionequivalentsonvestedphantomunits_60FE7928486C4F603987ED07BA135CFF_terseLabel_en-US" xlink:label="lab_dk_Distributionequivalentsonvestedphantomunits_60FE7928486C4F603987ED07BA135CFF" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Distribution equivalents on vested phantom units</link:label>
    <link:label id="lab_dk_Distributionequivalentsonvestedphantomunits_60FE7928486C4F603987ED07BA135CFF_label_en-US" xlink:label="lab_dk_Distributionequivalentsonvestedphantomunits_60FE7928486C4F603987ED07BA135CFF" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Distribution equivalents on vested phantom units</link:label>
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    <link:label id="lab_dk_Totalnonoperatingincomeexpenses_B0A0B715F3D541C9E872ED10CF35F745_documentation_en-US" xlink:label="lab_dk_Totalnonoperatingincomeexpenses_B0A0B715F3D541C9E872ED10CF35F745" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">The aggregate amount of income or expense from ancillary business-related activities (that is to say, excluding major activities considered part of the normal operations of the business), including interest (income) expense and loss (income) from equity method investments.</link:label>
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    <link:label id="lab_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest_A38C6F3E332E97CD7B60ED10CF352AA6_totalLabel_en-US" xlink:label="lab_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest_A38C6F3E332E97CD7B60ED10CF352AA6" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xml:lang="en-US">Income before income tax expense (benefit)</link:label>
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    <link:label id="lab_dk_NetIncomeLossAttributableToPartners_DC6CB1AEC90137F20BF5ED10CF36C894_totalLabel_en-US" xlink:label="lab_dk_NetIncomeLossAttributableToPartners_DC6CB1AEC90137F20BF5ED10CF36C894" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xml:lang="en-US">Net income attributable to partners</link:label>
    <link:loc xlink:href="dk-20181231.xsd#dk_NetIncomeLossAttributableToPartners" xlink:label="loc_dk_NetIncomeLossAttributableToPartners_DC6CB1AEC90137F20BF5ED10CF36C894" xlink:type="locator" />
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    <link:label id="lab_dk_Comprehensiveincomeattributabletopartners_7C42FF78BFE2FFC8724AED10CF360888_totalLabel_en-US" xlink:label="lab_dk_Comprehensiveincomeattributabletopartners_7C42FF78BFE2FFC8724AED10CF360888" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xml:lang="en-US">Comprehensive income attributable to partners</link:label>
    <link:label id="lab_dk_Comprehensiveincomeattributabletopartners_7C42FF78BFE2FFC8724AED10CF360888_label_en-US" xlink:label="lab_dk_Comprehensiveincomeattributabletopartners_7C42FF78BFE2FFC8724AED10CF360888" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Comprehensive income attributable to partners</link:label>
    <link:label id="lab_dk_Comprehensiveincomeattributabletopartners_7C42FF78BFE2FFC8724AED10CF360888_documentation_en-US" xlink:label="lab_dk_Comprehensiveincomeattributabletopartners_7C42FF78BFE2FFC8724AED10CF360888" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Comprehensive income attributable to partners</link:label>
    <link:loc xlink:href="dk-20181231.xsd#dk_Comprehensiveincomeattributabletopartners" xlink:label="loc_dk_Comprehensiveincomeattributabletopartners_7C42FF78BFE2FFC8724AED10CF360888" xlink:type="locator" />
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    <link:label id="lab_us-gaap_NetIncomeLossAllocatedToGeneralPartners_6E85E028DFCE151D4A9DED10CF37305A_verboseLabel_en-US" xlink:label="lab_us-gaap_NetIncomeLossAllocatedToGeneralPartners_6E85E028DFCE151D4A9DED10CF37305A" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Less: General partner's interest in net income, including incentive distribution rights</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_NetIncomeLossAllocatedToGeneralPartners" xlink:label="loc_us-gaap_NetIncomeLossAllocatedToGeneralPartners_6E85E028DFCE151D4A9DED10CF37305A" xlink:type="locator" />
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    <link:label id="lab_us-gaap_EarningsPerShareBasicAndDilutedAbstract_F5239C98B389F6C90F9EED10CF370ED3_terseLabel_en-US" xlink:label="lab_us-gaap_EarningsPerShareBasicAndDilutedAbstract_F5239C98B389F6C90F9EED10CF370ED3" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Common units - (basic)</link:label>
    <link:label id="lab_us-gaap_EarningsPerShareBasicAndDilutedAbstract_F5239C98B389F6C90F9EED10CF370ED3_label_en-US" xlink:label="lab_us-gaap_EarningsPerShareBasicAndDilutedAbstract_F5239C98B389F6C90F9EED10CF370ED3" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Earnings Per Share, Basic and Diluted [Abstract]</link:label>
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    <link:label id="lab_us-gaap_NetIncomeLossPerOutstandingLimitedPartnershipUnitBasicNetOfTax_558FA2274DD1AE5891F2ED10CF37CB48_verboseLabel_en-US" xlink:label="lab_us-gaap_NetIncomeLossPerOutstandingLimitedPartnershipUnitBasicNetOfTax_558FA2274DD1AE5891F2ED10CF37CB48" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Common units - (basic) (in usd per unit)</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_NetIncomeLossPerOutstandingLimitedPartnershipUnitBasicNetOfTax" xlink:label="loc_us-gaap_NetIncomeLossPerOutstandingLimitedPartnershipUnitBasicNetOfTax_558FA2274DD1AE5891F2ED10CF37CB48" xlink:type="locator" />
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    <link:label id="lab_us-gaap_IncomeLossFromContinuingOperationsPerOutstandingLimitedPartnershipAndGeneralPartnershipUnitBasicAndDiluted_F9C1E3473E41DFC2D995ED10CF3818FC_terseLabel_en-US" xlink:label="lab_us-gaap_IncomeLossFromContinuingOperationsPerOutstandingLimitedPartnershipAndGeneralPartnershipUnitBasicAndDiluted_F9C1E3473E41DFC2D995ED10CF3818FC" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Subordinated units - Delek Holdings (basic and diluted) (in usd per unit)</link:label>
    <link:label id="lab_us-gaap_IncomeLossFromContinuingOperationsPerOutstandingLimitedPartnershipAndGeneralPartnershipUnitBasicAndDiluted_F9C1E3473E41DFC2D995ED10CF3818FC_label_en-US" xlink:label="lab_us-gaap_IncomeLossFromContinuingOperationsPerOutstandingLimitedPartnershipAndGeneralPartnershipUnitBasicAndDiluted_F9C1E3473E41DFC2D995ED10CF3818FC" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Income (Loss) from Continuing Operations, Per Outstanding Limited Partnership and General Partnership Unit, Basic and Diluted, Net of Tax</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_IncomeLossFromContinuingOperationsPerOutstandingLimitedPartnershipAndGeneralPartnershipUnitBasicAndDiluted" xlink:label="loc_us-gaap_IncomeLossFromContinuingOperationsPerOutstandingLimitedPartnershipAndGeneralPartnershipUnitBasicAndDiluted_F9C1E3473E41DFC2D995ED10CF3818FC" xlink:type="locator" />
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    <link:label id="lab_dk_LimitedPartnerUnitsOutstandingAbstract_529055F2D442C8947734ED10CF385B34_terseLabel_en-US" xlink:label="lab_dk_LimitedPartnerUnitsOutstandingAbstract_529055F2D442C8947734ED10CF385B34" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Weighted average limited partner units outstanding (2):</link:label>
    <link:label id="lab_dk_LimitedPartnerUnitsOutstandingAbstract_529055F2D442C8947734ED10CF385B34_label_en-US" xlink:label="lab_dk_LimitedPartnerUnitsOutstandingAbstract_529055F2D442C8947734ED10CF385B34" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Limited Partner Units Outstanding: [Abstract]</link:label>
    <link:label id="lab_dk_LimitedPartnerUnitsOutstandingAbstract_529055F2D442C8947734ED10CF385B34_documentation_en-US" xlink:label="lab_dk_LimitedPartnerUnitsOutstandingAbstract_529055F2D442C8947734ED10CF385B34" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Number of limited partner units, after adjustment for contingently issuable shares or units and other shares or units not deemed outstanding.</link:label>
    <link:loc xlink:href="dk-20181231.xsd#dk_LimitedPartnerUnitsOutstandingAbstract" xlink:label="loc_dk_LimitedPartnerUnitsOutstandingAbstract_529055F2D442C8947734ED10CF385B34" xlink:type="locator" />
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    <link:label id="lab_us-gaap_WeightedAverageLimitedPartnershipUnitsOutstanding_B710799B82C70EE06834ED10CF3891D3_label_en-US" xlink:label="lab_us-gaap_WeightedAverageLimitedPartnershipUnitsOutstanding_B710799B82C70EE06834ED10CF3891D3" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Weighted Average Limited Partnership Units Outstanding, Basic</link:label>
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    <link:label id="lab_dk_WeightedAverageLimitedPartnerUnitsOutstandingSubordinatedUnitsBasicAndDiluted_93BFB37B9D9DCA049D83ED10CF39D93E_label_en-US" xlink:label="lab_dk_WeightedAverageLimitedPartnerUnitsOutstandingSubordinatedUnitsBasicAndDiluted_93BFB37B9D9DCA049D83ED10CF39D93E" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Weighted average limited partner units outstanding- Subordinated units, Basic and Diluted</link:label>
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    <link:label id="lab_dk_DerivativeAssetCounterpartyNettingandCashCollateral_9EB1209E2D95593139FED32DD1FB6EE4_terseLabel_en-US" xlink:label="lab_dk_DerivativeAssetCounterpartyNettingandCashCollateral_9EB1209E2D95593139FED32DD1FB6EE4" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Less: Counterparty netting and cash deficit (collateral) (assets)</link:label>
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    <link:label id="lab_dk_DerivativeAssetCounterpartyNettingandCashCollateral_9EB1209E2D95593139FED32DD1FB6EE4_documentation_en-US" xlink:label="lab_dk_DerivativeAssetCounterpartyNettingandCashCollateral_9EB1209E2D95593139FED32DD1FB6EE4" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Derivative Asset Counterparty Netting and Cash Collateral</link:label>
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    <link:label id="lab_dk_DerivativeLiabilityCounterpartyNettingandCashCollateral_BBE3DB7ED159C6DBC3BFD32DD1FCFDC6_negatedLabel_en-US" xlink:label="lab_dk_DerivativeLiabilityCounterpartyNettingandCashCollateral_BBE3DB7ED159C6DBC3BFD32DD1FCFDC6" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:type="resource" xml:lang="en-US">Less: Counterparty netting and cash deficit (collateral) (liabilities)</link:label>
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    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_DebtInstrumentRedemptionPeriodAxis" xlink:label="loc_us-gaap_DebtInstrumentRedemptionPeriodAxis_18FD2BAE5500CA16AF9D34FED5691A1A" xlink:type="locator" />
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    <link:label id="lab_us-gaap_DebtInstrumentRedemptionPeriodDomain_103C226B0D78C311605D34FED569DC68_label_en-US" xlink:label="lab_us-gaap_DebtInstrumentRedemptionPeriodDomain_103C226B0D78C311605D34FED569DC68" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Debt Instrument, Redemption, Period [Domain]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_DebtInstrumentRedemptionPeriodDomain" xlink:label="loc_us-gaap_DebtInstrumentRedemptionPeriodDomain_103C226B0D78C311605D34FED569DC68" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_DebtInstrumentRedemptionPeriodDomain_103C226B0D78C311605D34FED569DC68" xlink:to="lab_us-gaap_DebtInstrumentRedemptionPeriodDomain_103C226B0D78C311605D34FED569DC68" xlink:type="arc" />
    <link:label id="lab_us-gaap_DebtInstrumentRedemptionPeriodOneMember_79CD38543933870D739134FED56972B0_terseLabel_en-US" xlink:label="lab_us-gaap_DebtInstrumentRedemptionPeriodOneMember_79CD38543933870D739134FED56972B0" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Prior to May 15, 2020</link:label>
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    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_DebtInstrumentRedemptionPeriodOneMember" xlink:label="loc_us-gaap_DebtInstrumentRedemptionPeriodOneMember_79CD38543933870D739134FED56972B0" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_DebtInstrumentRedemptionPeriodOneMember_79CD38543933870D739134FED56972B0" xlink:to="lab_us-gaap_DebtInstrumentRedemptionPeriodOneMember_79CD38543933870D739134FED56972B0" xlink:type="arc" />
    <link:label id="lab_us-gaap_DebtInstrumentRedemptionPeriodTwoMember_54AA4A4B9418FF41F80034FED5696C24_terseLabel_en-US" xlink:label="lab_us-gaap_DebtInstrumentRedemptionPeriodTwoMember_54AA4A4B9418FF41F80034FED5696C24" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Twelve-Month Period Beginning on May 15, 2020</link:label>
    <link:label id="lab_us-gaap_DebtInstrumentRedemptionPeriodTwoMember_54AA4A4B9418FF41F80034FED5696C24_label_en-US" xlink:label="lab_us-gaap_DebtInstrumentRedemptionPeriodTwoMember_54AA4A4B9418FF41F80034FED5696C24" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Debt Instrument, Redemption, Period Two [Member]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_DebtInstrumentRedemptionPeriodTwoMember" xlink:label="loc_us-gaap_DebtInstrumentRedemptionPeriodTwoMember_54AA4A4B9418FF41F80034FED5696C24" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_DebtInstrumentRedemptionPeriodTwoMember_54AA4A4B9418FF41F80034FED5696C24" xlink:to="lab_us-gaap_DebtInstrumentRedemptionPeriodTwoMember_54AA4A4B9418FF41F80034FED5696C24" xlink:type="arc" />
    <link:label id="lab_us-gaap_DebtInstrumentRedemptionPeriodThreeMember_273EC0C3C693B8C9419834FED56A51A1_terseLabel_en-US" xlink:label="lab_us-gaap_DebtInstrumentRedemptionPeriodThreeMember_273EC0C3C693B8C9419834FED56A51A1" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Twelve-Month Period Beginning on May 15, 2021</link:label>
    <link:label id="lab_us-gaap_DebtInstrumentRedemptionPeriodThreeMember_273EC0C3C693B8C9419834FED56A51A1_label_en-US" xlink:label="lab_us-gaap_DebtInstrumentRedemptionPeriodThreeMember_273EC0C3C693B8C9419834FED56A51A1" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Debt Instrument, Redemption, Period Three [Member]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_DebtInstrumentRedemptionPeriodThreeMember" xlink:label="loc_us-gaap_DebtInstrumentRedemptionPeriodThreeMember_273EC0C3C693B8C9419834FED56A51A1" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_DebtInstrumentRedemptionPeriodThreeMember_273EC0C3C693B8C9419834FED56A51A1" xlink:to="lab_us-gaap_DebtInstrumentRedemptionPeriodThreeMember_273EC0C3C693B8C9419834FED56A51A1" xlink:type="arc" />
    <link:label id="lab_us-gaap_DebtInstrumentRedemptionPeriodFourMember_717543DD5568377B028834FED56A8B0F_terseLabel_en-US" xlink:label="lab_us-gaap_DebtInstrumentRedemptionPeriodFourMember_717543DD5568377B028834FED56A8B0F" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Twelve-Month Period Beginning on May 15, 2022</link:label>
    <link:label id="lab_us-gaap_DebtInstrumentRedemptionPeriodFourMember_717543DD5568377B028834FED56A8B0F_label_en-US" xlink:label="lab_us-gaap_DebtInstrumentRedemptionPeriodFourMember_717543DD5568377B028834FED56A8B0F" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Debt Instrument, Redemption, Period Four [Member]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_DebtInstrumentRedemptionPeriodFourMember" xlink:label="loc_us-gaap_DebtInstrumentRedemptionPeriodFourMember_717543DD5568377B028834FED56A8B0F" xlink:type="locator" />
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    <link:label id="lab_us-gaap_DebtInstrumentRedemptionPeriodFiveMember_82F8FCE203165C2532DD34FED56A40EA_terseLabel_en-US" xlink:label="lab_us-gaap_DebtInstrumentRedemptionPeriodFiveMember_82F8FCE203165C2532DD34FED56A40EA" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Twelve-Month Period Beginning on May 15, 2023</link:label>
    <link:label id="lab_us-gaap_DebtInstrumentRedemptionPeriodFiveMember_82F8FCE203165C2532DD34FED56A40EA_label_en-US" xlink:label="lab_us-gaap_DebtInstrumentRedemptionPeriodFiveMember_82F8FCE203165C2532DD34FED56A40EA" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Debt Instrument, Redemption, Period Five [Member]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_DebtInstrumentRedemptionPeriodFiveMember" xlink:label="loc_us-gaap_DebtInstrumentRedemptionPeriodFiveMember_82F8FCE203165C2532DD34FED56A40EA" xlink:type="locator" />
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    <link:label id="lab_dk_DebtInstrumentRedemptionChangeOfControlMember_0F5EF9EE5B4C5E19A26135002A7195C3_terseLabel_en-US" xlink:label="lab_dk_DebtInstrumentRedemptionChangeOfControlMember_0F5EF9EE5B4C5E19A26135002A7195C3" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Debt Instrument, Redemption, Change Of Control</link:label>
    <link:label id="lab_dk_DebtInstrumentRedemptionChangeOfControlMember_0F5EF9EE5B4C5E19A26135002A7195C3_label_en-US" xlink:label="lab_dk_DebtInstrumentRedemptionChangeOfControlMember_0F5EF9EE5B4C5E19A26135002A7195C3" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Debt Instrument, Redemption, Change Of Control [Member]</link:label>
    <link:label id="lab_dk_DebtInstrumentRedemptionChangeOfControlMember_0F5EF9EE5B4C5E19A26135002A7195C3_documentation_en-US" xlink:label="lab_dk_DebtInstrumentRedemptionChangeOfControlMember_0F5EF9EE5B4C5E19A26135002A7195C3" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Debt Instrument, Redemption, Change Of Control [Member]</link:label>
    <link:loc xlink:href="dk-20181231.xsd#dk_DebtInstrumentRedemptionChangeOfControlMember" xlink:label="loc_dk_DebtInstrumentRedemptionChangeOfControlMember_0F5EF9EE5B4C5E19A26135002A7195C3" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_dk_DebtInstrumentRedemptionChangeOfControlMember_0F5EF9EE5B4C5E19A26135002A7195C3" xlink:to="lab_dk_DebtInstrumentRedemptionChangeOfControlMember_0F5EF9EE5B4C5E19A26135002A7195C3" xlink:type="arc" />
    <link:label id="lab_us-gaap_DebtInstrumentFaceAmount_A10B2B5F4C2A1F68D0CE34FED56B81EF_terseLabel_en-US" xlink:label="lab_us-gaap_DebtInstrumentFaceAmount_A10B2B5F4C2A1F68D0CE34FED56B81EF" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Debt instrument, face amount</link:label>
    <link:label id="lab_us-gaap_DebtInstrumentFaceAmount_A10B2B5F4C2A1F68D0CE34FED56B81EF_label_en-US" xlink:label="lab_us-gaap_DebtInstrumentFaceAmount_A10B2B5F4C2A1F68D0CE34FED56B81EF" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Debt Instrument, Face Amount</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_DebtInstrumentFaceAmount" xlink:label="loc_us-gaap_DebtInstrumentFaceAmount_A10B2B5F4C2A1F68D0CE34FED56B81EF" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_DebtInstrumentFaceAmount_A10B2B5F4C2A1F68D0CE34FED56B81EF" xlink:to="lab_us-gaap_DebtInstrumentFaceAmount_A10B2B5F4C2A1F68D0CE34FED56B81EF" xlink:type="arc" />
    <link:label id="lab_us-gaap_DebtInstrumentInterestRateStatedPercentage_F32A7EE2AEFC5B1C127B34FED56B5372_terseLabel_en-US" xlink:label="lab_us-gaap_DebtInstrumentInterestRateStatedPercentage_F32A7EE2AEFC5B1C127B34FED56B5372" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Debt instrument, interest rate, stated percentage</link:label>
    <link:label id="lab_us-gaap_DebtInstrumentInterestRateStatedPercentage_F32A7EE2AEFC5B1C127B34FED56B5372_label_en-US" xlink:label="lab_us-gaap_DebtInstrumentInterestRateStatedPercentage_F32A7EE2AEFC5B1C127B34FED56B5372" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Debt Instrument, Interest Rate, Stated Percentage</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_DebtInstrumentInterestRateStatedPercentage" xlink:label="loc_us-gaap_DebtInstrumentInterestRateStatedPercentage_F32A7EE2AEFC5B1C127B34FED56B5372" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_DebtInstrumentInterestRateStatedPercentage_F32A7EE2AEFC5B1C127B34FED56B5372" xlink:to="lab_us-gaap_DebtInstrumentInterestRateStatedPercentage_F32A7EE2AEFC5B1C127B34FED56B5372" xlink:type="arc" />
    <link:label id="lab_us-gaap_DebtInstrumentRedemptionPricePercentageOfPrincipalAmountRedeemed_0B6795992B9BD6BE548E34FED56B435A_terseLabel_en-US" xlink:label="lab_us-gaap_DebtInstrumentRedemptionPricePercentageOfPrincipalAmountRedeemed_0B6795992B9BD6BE548E34FED56B435A" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Debt instrument, redemption price, percentage of principal amount redeemed</link:label>
    <link:label id="lab_us-gaap_DebtInstrumentRedemptionPricePercentageOfPrincipalAmountRedeemed_0B6795992B9BD6BE548E34FED56B435A_label_en-US" xlink:label="lab_us-gaap_DebtInstrumentRedemptionPricePercentageOfPrincipalAmountRedeemed_0B6795992B9BD6BE548E34FED56B435A" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Debt Instrument, Redemption Price, Percentage of Principal Amount Redeemed</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_DebtInstrumentRedemptionPricePercentageOfPrincipalAmountRedeemed" xlink:label="loc_us-gaap_DebtInstrumentRedemptionPricePercentageOfPrincipalAmountRedeemed_0B6795992B9BD6BE548E34FED56B435A" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_DebtInstrumentRedemptionPricePercentageOfPrincipalAmountRedeemed_0B6795992B9BD6BE548E34FED56B435A" xlink:to="lab_us-gaap_DebtInstrumentRedemptionPricePercentageOfPrincipalAmountRedeemed_0B6795992B9BD6BE548E34FED56B435A" xlink:type="arc" />
    <link:label id="lab_us-gaap_DeferredFinanceCostsNet_D0A1B1432D3A2175EF2534FED56B0902_negatedTerseLabel_en-US" xlink:label="lab_us-gaap_DeferredFinanceCostsNet_D0A1B1432D3A2175EF2534FED56B0902" xlink:role="http://www.xbrl.org/2009/role/negatedTerseLabel" xlink:type="resource" xml:lang="en-US">Deferred financing costs</link:label>
    <link:label id="lab_us-gaap_DeferredFinanceCostsNet_D0A1B1432D3A2175EF2534FED56B0902_label_en-US" xlink:label="lab_us-gaap_DeferredFinanceCostsNet_D0A1B1432D3A2175EF2534FED56B0902" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Debt Issuance Costs, Net</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_DeferredFinanceCostsNet" xlink:label="loc_us-gaap_DeferredFinanceCostsNet_D0A1B1432D3A2175EF2534FED56B0902" xlink:type="locator" />
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    <link:label id="lab_us-gaap_DebtInstrumentUnamortizedDiscount_D53BEC0181F7283ED83A34FED56CED14_negatedTerseLabel_en-US" xlink:label="lab_us-gaap_DebtInstrumentUnamortizedDiscount_D53BEC0181F7283ED83A34FED56CED14" xlink:role="http://www.xbrl.org/2009/role/negatedTerseLabel" xlink:type="resource" xml:lang="en-US">Debt discount</link:label>
    <link:label id="lab_us-gaap_DebtInstrumentUnamortizedDiscount_D53BEC0181F7283ED83A34FED56CED14_label_en-US" xlink:label="lab_us-gaap_DebtInstrumentUnamortizedDiscount_D53BEC0181F7283ED83A34FED56CED14" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Debt Instrument, Unamortized Discount</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_DebtInstrumentUnamortizedDiscount" xlink:label="loc_us-gaap_DebtInstrumentUnamortizedDiscount_D53BEC0181F7283ED83A34FED56CED14" xlink:type="locator" />
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    <link:label id="lab_us-gaap_RelatedPartyTransactionAxis_1C3078A2C3DA437071C8D32DD3B4FA6D_terseLabel_en-US" xlink:label="lab_us-gaap_RelatedPartyTransactionAxis_1C3078A2C3DA437071C8D32DD3B4FA6D" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Related Party Transaction [Axis]</link:label>
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    <link:label id="lab_dk_BigSpringAsphaltServicesAgreementMember_37FDAA599DF5320ECCF9261F46C6A3D8_terseLabel_en-US" xlink:label="lab_dk_BigSpringAsphaltServicesAgreementMember_37FDAA599DF5320ECCF9261F46C6A3D8" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Big Spring Asphalt Services Agreement</link:label>
    <link:label id="lab_dk_BigSpringAsphaltServicesAgreementMember_37FDAA599DF5320ECCF9261F46C6A3D8_label_en-US" xlink:label="lab_dk_BigSpringAsphaltServicesAgreementMember_37FDAA599DF5320ECCF9261F46C6A3D8" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Big Spring Asphalt Services Agreement [Member]</link:label>
    <link:label id="lab_dk_BigSpringAsphaltServicesAgreementMember_37FDAA599DF5320ECCF9261F46C6A3D8_documentation_en-US" xlink:label="lab_dk_BigSpringAsphaltServicesAgreementMember_37FDAA599DF5320ECCF9261F46C6A3D8" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Big Spring Asphalt Services Agreement</link:label>
    <link:loc xlink:href="dk-20181231.xsd#dk_BigSpringAsphaltServicesAgreementMember" xlink:label="loc_dk_BigSpringAsphaltServicesAgreementMember_37FDAA599DF5320ECCF9261F46C6A3D8" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_dk_BigSpringAsphaltServicesAgreementMember_37FDAA599DF5320ECCF9261F46C6A3D8" xlink:to="lab_dk_BigSpringAsphaltServicesAgreementMember_37FDAA599DF5320ECCF9261F46C6A3D8" xlink:type="arc" />
    <link:label id="lab_dk_BigSpringMarketingAgreementMember_AB62BC6CF148FD0B2720261F46C6E55C_terseLabel_en-US" xlink:label="lab_dk_BigSpringMarketingAgreementMember_AB62BC6CF148FD0B2720261F46C6E55C" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Big Spring Marketing Agreement</link:label>
    <link:label id="lab_dk_BigSpringMarketingAgreementMember_AB62BC6CF148FD0B2720261F46C6E55C_label_en-US" xlink:label="lab_dk_BigSpringMarketingAgreementMember_AB62BC6CF148FD0B2720261F46C6E55C" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Big Spring Marketing Agreement [Member]</link:label>
    <link:label id="lab_dk_BigSpringMarketingAgreementMember_AB62BC6CF148FD0B2720261F46C6E55C_documentation_en-US" xlink:label="lab_dk_BigSpringMarketingAgreementMember_AB62BC6CF148FD0B2720261F46C6E55C" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Big Spring Marketing Agreement</link:label>
    <link:loc xlink:href="dk-20181231.xsd#dk_BigSpringMarketingAgreementMember" xlink:label="loc_dk_BigSpringMarketingAgreementMember_AB62BC6CF148FD0B2720261F46C6E55C" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_dk_BigSpringMarketingAgreementMember_AB62BC6CF148FD0B2720261F46C6E55C" xlink:to="lab_dk_BigSpringMarketingAgreementMember_AB62BC6CF148FD0B2720261F46C6E55C" xlink:type="arc" />
    <link:label id="lab_dk_CrudeOilPipelineMember_FE61262075E781DB0541261F46C68C1A_terseLabel_en-US" xlink:label="lab_dk_CrudeOilPipelineMember_FE61262075E781DB0541261F46C68C1A" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Crude Oil Pipeline</link:label>
    <link:label id="lab_dk_CrudeOilPipelineMember_FE61262075E781DB0541261F46C68C1A_label_en-US" xlink:label="lab_dk_CrudeOilPipelineMember_FE61262075E781DB0541261F46C68C1A" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Crude Oil Pipeline [Member]</link:label>
    <link:label id="lab_dk_CrudeOilPipelineMember_FE61262075E781DB0541261F46C68C1A_documentation_en-US" xlink:label="lab_dk_CrudeOilPipelineMember_FE61262075E781DB0541261F46C68C1A" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Crude Oil Pipeline [Member]</link:label>
    <link:loc xlink:href="dk-20181231.xsd#dk_CrudeOilPipelineMember" xlink:label="loc_dk_CrudeOilPipelineMember_FE61262075E781DB0541261F46C68C1A" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_dk_CrudeOilPipelineMember_FE61262075E781DB0541261F46C68C1A" xlink:to="lab_dk_CrudeOilPipelineMember_FE61262075E781DB0541261F46C68C1A" xlink:type="arc" />
    <link:label id="lab_dk_RefinedProductPipelineMember_8B9C4704D0044C7EDDDB261F46C720B9_terseLabel_en-US" xlink:label="lab_dk_RefinedProductPipelineMember_8B9C4704D0044C7EDDDB261F46C720B9" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Refined Product Pipeline</link:label>
    <link:label id="lab_dk_RefinedProductPipelineMember_8B9C4704D0044C7EDDDB261F46C720B9_label_en-US" xlink:label="lab_dk_RefinedProductPipelineMember_8B9C4704D0044C7EDDDB261F46C720B9" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Refined Product Pipeline [Member]</link:label>
    <link:label id="lab_dk_RefinedProductPipelineMember_8B9C4704D0044C7EDDDB261F46C720B9_documentation_en-US" xlink:label="lab_dk_RefinedProductPipelineMember_8B9C4704D0044C7EDDDB261F46C720B9" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Refined Product Pipeline [Member]</link:label>
    <link:loc xlink:href="dk-20181231.xsd#dk_RefinedProductPipelineMember" xlink:label="loc_dk_RefinedProductPipelineMember_8B9C4704D0044C7EDDDB261F46C720B9" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_dk_RefinedProductPipelineMember_8B9C4704D0044C7EDDDB261F46C720B9" xlink:to="lab_dk_RefinedProductPipelineMember_8B9C4704D0044C7EDDDB261F46C720B9" xlink:type="arc" />
    <link:label id="lab_dk_SALAGatheringSystemmemberMember_2E7110676E091D4348AF261F46C795EB_terseLabel_en-US" xlink:label="lab_dk_SALAGatheringSystemmemberMember_2E7110676E091D4348AF261F46C795EB" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">SALA Gathering System</link:label>
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    <link:label id="lab_dk_SALAGatheringSystemmemberMember_2E7110676E091D4348AF261F46C795EB_documentation_en-US" xlink:label="lab_dk_SALAGatheringSystemmemberMember_2E7110676E091D4348AF261F46C795EB" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">SALA Gathering System member [Member]</link:label>
    <link:loc xlink:href="dk-20181231.xsd#dk_SALAGatheringSystemmemberMember" xlink:label="loc_dk_SALAGatheringSystemmemberMember_2E7110676E091D4348AF261F46C795EB" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_dk_SALAGatheringSystemmemberMember_2E7110676E091D4348AF261F46C795EB" xlink:to="lab_dk_SALAGatheringSystemmemberMember_2E7110676E091D4348AF261F46C795EB" xlink:type="arc" />
    <link:label id="lab_dk_StorageThroughputFacilitiesMember_E605C49B2382D1477091261F46C7EB0C_terseLabel_en-US" xlink:label="lab_dk_StorageThroughputFacilitiesMember_E605C49B2382D1477091261F46C7EB0C" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Storage</link:label>
    <link:label id="lab_dk_StorageThroughputFacilitiesMember_E605C49B2382D1477091261F46C7EB0C_label_en-US" xlink:label="lab_dk_StorageThroughputFacilitiesMember_E605C49B2382D1477091261F46C7EB0C" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Storage, Throughput Facilities [Member]</link:label>
    <link:label id="lab_dk_StorageThroughputFacilitiesMember_E605C49B2382D1477091261F46C7EB0C_documentation_en-US" xlink:label="lab_dk_StorageThroughputFacilitiesMember_E605C49B2382D1477091261F46C7EB0C" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Storage, Throughput Facilities</link:label>
    <link:loc xlink:href="dk-20181231.xsd#dk_StorageThroughputFacilitiesMember" xlink:label="loc_dk_StorageThroughputFacilitiesMember_E605C49B2382D1477091261F46C7EB0C" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_dk_StorageThroughputFacilitiesMember_E605C49B2382D1477091261F46C7EB0C" xlink:to="lab_dk_StorageThroughputFacilitiesMember_E605C49B2382D1477091261F46C7EB0C" xlink:type="arc" />
    <link:label id="lab_dk_BigSandyTerminalMember_8B02E9D8FCA65E083F7E261F46C77F7E_terseLabel_en-US" xlink:label="lab_dk_BigSandyTerminalMember_8B02E9D8FCA65E083F7E261F46C77F7E" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Big Sandy Terminal</link:label>
    <link:label id="lab_dk_BigSandyTerminalMember_8B02E9D8FCA65E083F7E261F46C77F7E_label_en-US" xlink:label="lab_dk_BigSandyTerminalMember_8B02E9D8FCA65E083F7E261F46C77F7E" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Big Sandy Terminal [Member]</link:label>
    <link:label id="lab_dk_BigSandyTerminalMember_8B02E9D8FCA65E083F7E261F46C77F7E_documentation_en-US" xlink:label="lab_dk_BigSandyTerminalMember_8B02E9D8FCA65E083F7E261F46C77F7E" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Big Sandy Terminal [Member]</link:label>
    <link:loc xlink:href="dk-20181231.xsd#dk_BigSandyTerminalMember" xlink:label="loc_dk_BigSandyTerminalMember_8B02E9D8FCA65E083F7E261F46C77F7E" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_dk_BigSandyTerminalMember_8B02E9D8FCA65E083F7E261F46C77F7E" xlink:to="lab_dk_BigSandyTerminalMember_8B02E9D8FCA65E083F7E261F46C77F7E" xlink:type="arc" />
    <link:label id="lab_dk_LightSweetCrudeOilMember_EC338DF8D1BF27F0CE99261F46C85C89_terseLabel_en-US" xlink:label="lab_dk_LightSweetCrudeOilMember_EC338DF8D1BF27F0CE99261F46C85C89" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Light Crude Oil</link:label>
    <link:label id="lab_dk_LightSweetCrudeOilMember_EC338DF8D1BF27F0CE99261F46C85C89_label_en-US" xlink:label="lab_dk_LightSweetCrudeOilMember_EC338DF8D1BF27F0CE99261F46C85C89" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Light Sweet Crude Oil [Member]</link:label>
    <link:label id="lab_dk_LightSweetCrudeOilMember_EC338DF8D1BF27F0CE99261F46C85C89_documentation_en-US" xlink:label="lab_dk_LightSweetCrudeOilMember_EC338DF8D1BF27F0CE99261F46C85C89" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Light Sweet Crude Oil [Member]</link:label>
    <link:loc xlink:href="dk-20181231.xsd#dk_LightSweetCrudeOilMember" xlink:label="loc_dk_LightSweetCrudeOilMember_EC338DF8D1BF27F0CE99261F46C85C89" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_dk_LightSweetCrudeOilMember_EC338DF8D1BF27F0CE99261F46C85C89" xlink:to="lab_dk_LightSweetCrudeOilMember_EC338DF8D1BF27F0CE99261F46C85C89" xlink:type="arc" />
    <link:label id="lab_dk_HeavyCrudeOilMember_4D21EC2F163DE4DC7B30261F46C88893_terseLabel_en-US" xlink:label="lab_dk_HeavyCrudeOilMember_4D21EC2F163DE4DC7B30261F46C88893" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Heavy Crude Oil</link:label>
    <link:label id="lab_dk_HeavyCrudeOilMember_4D21EC2F163DE4DC7B30261F46C88893_label_en-US" xlink:label="lab_dk_HeavyCrudeOilMember_4D21EC2F163DE4DC7B30261F46C88893" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Heavy Crude Oil [Member]</link:label>
    <link:label id="lab_dk_HeavyCrudeOilMember_4D21EC2F163DE4DC7B30261F46C88893_documentation_en-US" xlink:label="lab_dk_HeavyCrudeOilMember_4D21EC2F163DE4DC7B30261F46C88893" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Heavy Crude Oil [Member]</link:label>
    <link:loc xlink:href="dk-20181231.xsd#dk_HeavyCrudeOilMember" xlink:label="loc_dk_HeavyCrudeOilMember_4D21EC2F163DE4DC7B30261F46C88893" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_dk_HeavyCrudeOilMember_4D21EC2F163DE4DC7B30261F46C88893" xlink:to="lab_dk_HeavyCrudeOilMember_4D21EC2F163DE4DC7B30261F46C88893" xlink:type="arc" />
    <link:label id="lab_dk_RailOffloadingPipelineMember_8EB6A0947CD713538163261F46C813EC_terseLabel_en-US" xlink:label="lab_dk_RailOffloadingPipelineMember_8EB6A0947CD713538163261F46C813EC" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Rail Offloading</link:label>
    <link:label id="lab_dk_RailOffloadingPipelineMember_8EB6A0947CD713538163261F46C813EC_label_en-US" xlink:label="lab_dk_RailOffloadingPipelineMember_8EB6A0947CD713538163261F46C813EC" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Rail Offloading Pipeline [Member]</link:label>
    <link:label id="lab_dk_RailOffloadingPipelineMember_8EB6A0947CD713538163261F46C813EC_documentation_en-US" xlink:label="lab_dk_RailOffloadingPipelineMember_8EB6A0947CD713538163261F46C813EC" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Rail Offloading Services</link:label>
    <link:loc xlink:href="dk-20181231.xsd#dk_RailOffloadingPipelineMember" xlink:label="loc_dk_RailOffloadingPipelineMember_8EB6A0947CD713538163261F46C813EC" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_dk_RailOffloadingPipelineMember_8EB6A0947CD713538163261F46C813EC" xlink:to="lab_dk_RailOffloadingPipelineMember_8EB6A0947CD713538163261F46C813EC" xlink:type="arc" />
    <link:label id="lab_dk_DedicatedTerminallingServicesMember_2907939A3D2ED206FEAF261F46C86D35_terseLabel_en-US" xlink:label="lab_dk_DedicatedTerminallingServicesMember_2907939A3D2ED206FEAF261F46C86D35" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Dedicated Terminalling Services</link:label>
    <link:label id="lab_dk_DedicatedTerminallingServicesMember_2907939A3D2ED206FEAF261F46C86D35_label_en-US" xlink:label="lab_dk_DedicatedTerminallingServicesMember_2907939A3D2ED206FEAF261F46C86D35" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Dedicated Terminalling Services [Member]</link:label>
    <link:label id="lab_dk_DedicatedTerminallingServicesMember_2907939A3D2ED206FEAF261F46C86D35_documentation_en-US" xlink:label="lab_dk_DedicatedTerminallingServicesMember_2907939A3D2ED206FEAF261F46C86D35" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Dedicated Terminalling Services</link:label>
    <link:loc xlink:href="dk-20181231.xsd#dk_DedicatedTerminallingServicesMember" xlink:label="loc_dk_DedicatedTerminallingServicesMember_2907939A3D2ED206FEAF261F46C86D35" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_dk_DedicatedTerminallingServicesMember_2907939A3D2ED206FEAF261F46C86D35" xlink:to="lab_dk_DedicatedTerminallingServicesMember_2907939A3D2ED206FEAF261F46C86D35" xlink:type="arc" />
    <link:label id="lab_dk_DedicatedAsphaltTerminallingMember_FCF13809710859882D38261F46C80324_terseLabel_en-US" xlink:label="lab_dk_DedicatedAsphaltTerminallingMember_FCF13809710859882D38261F46C80324" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Dedicated Asphalt Terminalling</link:label>
    <link:label id="lab_dk_DedicatedAsphaltTerminallingMember_FCF13809710859882D38261F46C80324_label_en-US" xlink:label="lab_dk_DedicatedAsphaltTerminallingMember_FCF13809710859882D38261F46C80324" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Dedicated Asphalt Terminalling [Member]</link:label>
    <link:label id="lab_dk_DedicatedAsphaltTerminallingMember_FCF13809710859882D38261F46C80324_documentation_en-US" xlink:label="lab_dk_DedicatedAsphaltTerminallingMember_FCF13809710859882D38261F46C80324" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Dedicated Asphalt Terminalling</link:label>
    <link:loc xlink:href="dk-20181231.xsd#dk_DedicatedAsphaltTerminallingMember" xlink:label="loc_dk_DedicatedAsphaltTerminallingMember_FCF13809710859882D38261F46C80324" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_dk_DedicatedAsphaltTerminallingMember_FCF13809710859882D38261F46C80324" xlink:to="lab_dk_DedicatedAsphaltTerminallingMember_FCF13809710859882D38261F46C80324" xlink:type="arc" />
    <link:label id="lab_dk_DedicatedMarketingandSellingMember_202EC427872096BEA9F0261F46C801C8_terseLabel_en-US" xlink:label="lab_dk_DedicatedMarketingandSellingMember_202EC427872096BEA9F0261F46C801C8" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Dedicated Marketing and Selling</link:label>
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    <link:label id="lab_dk_DedicatedMarketingandSellingMember_202EC427872096BEA9F0261F46C801C8_documentation_en-US" xlink:label="lab_dk_DedicatedMarketingandSellingMember_202EC427872096BEA9F0261F46C801C8" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Dedicated Marketing and Selling</link:label>
    <link:loc xlink:href="dk-20181231.xsd#dk_DedicatedMarketingandSellingMember" xlink:label="loc_dk_DedicatedMarketingandSellingMember_202EC427872096BEA9F0261F46C801C8" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_dk_DedicatedMarketingandSellingMember_202EC427872096BEA9F0261F46C801C8" xlink:to="lab_dk_DedicatedMarketingandSellingMember_202EC427872096BEA9F0261F46C801C8" xlink:type="arc" />
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    <link:label id="lab_dk_DistributionstoGeneralPartner_0E3DB08FDA73A648FFBBED10CF0F719B_negatedTerseLabel_en-US" xlink:label="lab_dk_DistributionstoGeneralPartner_0E3DB08FDA73A648FFBBED10CF0F719B" xlink:role="http://www.xbrl.org/2009/role/negatedTerseLabel" xlink:type="resource" xml:lang="en-US">Distributions to general partner</link:label>
    <link:label id="lab_dk_DistributionstoGeneralPartner_0E3DB08FDA73A648FFBBED10CF0F719B_label_en-US" xlink:label="lab_dk_DistributionstoGeneralPartner_0E3DB08FDA73A648FFBBED10CF0F719B" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Distributions to General Partner</link:label>
    <link:label id="lab_dk_DistributionstoGeneralPartner_0E3DB08FDA73A648FFBBED10CF0F719B_documentation_en-US" xlink:label="lab_dk_DistributionstoGeneralPartner_0E3DB08FDA73A648FFBBED10CF0F719B" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Cash outflow to general partner, excluding ordinary dividends. Includes special dividends.</link:label>
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    <link:label id="lab_us-gaap_ProceedsFromLongTermLinesOfCredit_2E231AF36E2C6D7D5690ED10CF10DBD6_terseLabel_en-US" xlink:label="lab_us-gaap_ProceedsFromLongTermLinesOfCredit_2E231AF36E2C6D7D5690ED10CF10DBD6" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Proceeds from revolving credit facility</link:label>
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    <link:label id="lab_us-gaap_CashAndCashEquivalentsAtCarryingValue_672B0190EDE36AD38DABED10CF1190B7_periodStartLabel_en-US" xlink:label="lab_us-gaap_CashAndCashEquivalentsAtCarryingValue_672B0190EDE36AD38DABED10CF1190B7" xlink:role="http://www.xbrl.org/2003/role/periodStartLabel" xlink:type="resource" xml:lang="en-US">Cash and cash equivalents at the beginning of the period</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_CashAndCashEquivalentsAtCarryingValue" xlink:label="loc_us-gaap_CashAndCashEquivalentsAtCarryingValue_672B0190EDE36AD38DABED10CF1190B7" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_CashAndCashEquivalentsAtCarryingValue_672B0190EDE36AD38DABED10CF1190B7" xlink:to="lab_us-gaap_CashAndCashEquivalentsAtCarryingValue_672B0190EDE36AD38DABED10CF1190B7" xlink:type="arc" />
    <link:label id="lab_us-gaap_CashAndCashEquivalentsAtCarryingValue_FB84B880729C846D17BEED10CF12980F_periodEndLabel_en-US" xlink:label="lab_us-gaap_CashAndCashEquivalentsAtCarryingValue_FB84B880729C846D17BEED10CF12980F" xlink:role="http://www.xbrl.org/2003/role/periodEndLabel" xlink:type="resource" xml:lang="en-US">Cash and cash equivalents at the end of the period</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_CashAndCashEquivalentsAtCarryingValue_FB84B880729C846D17BEED10CF12980F" xlink:to="lab_us-gaap_CashAndCashEquivalentsAtCarryingValue_FB84B880729C846D17BEED10CF12980F" xlink:type="arc" />
    <link:label id="lab_us-gaap_SupplementalCashFlowInformationAbstract_0433AB5C57B24CC23C46ED10CF127898_verboseLabel_en-US" xlink:label="lab_us-gaap_SupplementalCashFlowInformationAbstract_0433AB5C57B24CC23C46ED10CF127898" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Supplemental disclosures of cash flow information:</link:label>
    <link:label id="lab_us-gaap_SupplementalCashFlowInformationAbstract_0433AB5C57B24CC23C46ED10CF127898_label_en-US" xlink:label="lab_us-gaap_SupplementalCashFlowInformationAbstract_0433AB5C57B24CC23C46ED10CF127898" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Supplemental Cash Flow Information [Abstract]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_SupplementalCashFlowInformationAbstract" xlink:label="loc_us-gaap_SupplementalCashFlowInformationAbstract_0433AB5C57B24CC23C46ED10CF127898" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_SupplementalCashFlowInformationAbstract_0433AB5C57B24CC23C46ED10CF127898" xlink:to="lab_us-gaap_SupplementalCashFlowInformationAbstract_0433AB5C57B24CC23C46ED10CF127898" xlink:type="arc" />
    <link:label id="lab_dk_SupplementalCashFlowInformationCashPaidDuringPeriodAbstract_18881DE99CC69456E782ED10CF121988_verboseLabel_en-US" xlink:label="lab_dk_SupplementalCashFlowInformationCashPaidDuringPeriodAbstract_18881DE99CC69456E782ED10CF121988" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Cash paid during the period for:</link:label>
    <link:label id="lab_dk_SupplementalCashFlowInformationCashPaidDuringPeriodAbstract_18881DE99CC69456E782ED10CF121988_label_en-US" xlink:label="lab_dk_SupplementalCashFlowInformationCashPaidDuringPeriodAbstract_18881DE99CC69456E782ED10CF121988" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Supplemental Cash Flow Information Cash Paid During Period Abstract</link:label>
    <link:label id="lab_dk_SupplementalCashFlowInformationCashPaidDuringPeriodAbstract_18881DE99CC69456E782ED10CF121988_documentation_en-US" xlink:label="lab_dk_SupplementalCashFlowInformationCashPaidDuringPeriodAbstract_18881DE99CC69456E782ED10CF121988" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Cash paid during the period for:</link:label>
    <link:loc xlink:href="dk-20181231.xsd#dk_SupplementalCashFlowInformationCashPaidDuringPeriodAbstract" xlink:label="loc_dk_SupplementalCashFlowInformationCashPaidDuringPeriodAbstract_18881DE99CC69456E782ED10CF121988" xlink:type="locator" />
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    <link:label id="lab_us-gaap_InterestPaidNet_089EE7166E612C50AEE0ED10CF1214B1_verboseLabel_en-US" xlink:label="lab_us-gaap_InterestPaidNet_089EE7166E612C50AEE0ED10CF1214B1" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Interest</link:label>
    <link:label id="lab_us-gaap_InterestPaidNet_089EE7166E612C50AEE0ED10CF1214B1_label_en-US" xlink:label="lab_us-gaap_InterestPaidNet_089EE7166E612C50AEE0ED10CF1214B1" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Interest Paid, Excluding Capitalized Interest, Operating Activities</link:label>
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    <link:label id="lab_us-gaap_IncomeTaxesPaid_F3C66D4433A2FA9761A7ED10CF1375DC_verboseLabel_en-US" xlink:label="lab_us-gaap_IncomeTaxesPaid_F3C66D4433A2FA9761A7ED10CF1375DC" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Income taxes</link:label>
    <link:label id="lab_us-gaap_IncomeTaxesPaid_F3C66D4433A2FA9761A7ED10CF1375DC_label_en-US" xlink:label="lab_us-gaap_IncomeTaxesPaid_F3C66D4433A2FA9761A7ED10CF1375DC" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Income Taxes Paid</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_IncomeTaxesPaid" xlink:label="loc_us-gaap_IncomeTaxesPaid_F3C66D4433A2FA9761A7ED10CF1375DC" xlink:type="locator" />
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    <link:label id="lab_dk_CashFlowNoncashInvestingActivitiesDisclosureAbstract_A369A470445B1E769891ED10CF135E6B_terseLabel_en-US" xlink:label="lab_dk_CashFlowNoncashInvestingActivitiesDisclosureAbstract_A369A470445B1E769891ED10CF135E6B" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Non-cash investing activities:</link:label>
    <link:label id="lab_dk_CashFlowNoncashInvestingActivitiesDisclosureAbstract_A369A470445B1E769891ED10CF135E6B_label_en-US" xlink:label="lab_dk_CashFlowNoncashInvestingActivitiesDisclosureAbstract_A369A470445B1E769891ED10CF135E6B" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Cash Flow, Noncash Investing Activities Disclosure [Abstract]</link:label>
    <link:label id="lab_dk_CashFlowNoncashInvestingActivitiesDisclosureAbstract_A369A470445B1E769891ED10CF135E6B_documentation_en-US" xlink:label="lab_dk_CashFlowNoncashInvestingActivitiesDisclosureAbstract_A369A470445B1E769891ED10CF135E6B" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Cash Flow, Noncash Investing Activities Disclosure [Abstract]</link:label>
    <link:loc xlink:href="dk-20181231.xsd#dk_CashFlowNoncashInvestingActivitiesDisclosureAbstract" xlink:label="loc_dk_CashFlowNoncashInvestingActivitiesDisclosureAbstract_A369A470445B1E769891ED10CF135E6B" xlink:type="locator" />
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    <link:label id="lab_dk_NonCashInvestingActivitiesIncreaseDecreaseinAccruedCapitalExpenditures_75C35839592607A8B97AED10CF1360B2_terseLabel_en-US" xlink:label="lab_dk_NonCashInvestingActivitiesIncreaseDecreaseinAccruedCapitalExpenditures_75C35839592607A8B97AED10CF1360B2" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">(Increase)/Decrease in accrued capital expenditures</link:label>
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    <link:label id="lab_dk_NonCashInvestingActivitiesIncreaseDecreaseinAccruedCapitalExpenditures_75C35839592607A8B97AED10CF1360B2_documentation_en-US" xlink:label="lab_dk_NonCashInvestingActivitiesIncreaseDecreaseinAccruedCapitalExpenditures_75C35839592607A8B97AED10CF1360B2" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Non-Cash Investing Activities, Increase (Decrease) in Accrued Capital Expenditures</link:label>
    <link:loc xlink:href="dk-20181231.xsd#dk_NonCashInvestingActivitiesIncreaseDecreaseinAccruedCapitalExpenditures" xlink:label="loc_dk_NonCashInvestingActivitiesIncreaseDecreaseinAccruedCapitalExpenditures_75C35839592607A8B97AED10CF1360B2" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_dk_NonCashInvestingActivitiesIncreaseDecreaseinAccruedCapitalExpenditures_75C35839592607A8B97AED10CF1360B2" xlink:to="lab_dk_NonCashInvestingActivitiesIncreaseDecreaseinAccruedCapitalExpenditures_75C35839592607A8B97AED10CF1360B2" xlink:type="arc" />
    <link:label id="lab_dk_NoncashfinancingactivitiesAbstract_B17F37643294539B0E43ED10CF13ED19_terseLabel_en-US" xlink:label="lab_dk_NoncashfinancingactivitiesAbstract_B17F37643294539B0E43ED10CF13ED19" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Non-cash financing activities:</link:label>
    <link:label id="lab_dk_NoncashfinancingactivitiesAbstract_B17F37643294539B0E43ED10CF13ED19_label_en-US" xlink:label="lab_dk_NoncashfinancingactivitiesAbstract_B17F37643294539B0E43ED10CF13ED19" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Non-cash financing activities [Abstract]</link:label>
    <link:label id="lab_dk_NoncashfinancingactivitiesAbstract_B17F37643294539B0E43ED10CF13ED19_documentation_en-US" xlink:label="lab_dk_NoncashfinancingactivitiesAbstract_B17F37643294539B0E43ED10CF13ED19" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Non-cash financing activities [Abstract]</link:label>
    <link:loc xlink:href="dk-20181231.xsd#dk_NoncashfinancingactivitiesAbstract" xlink:label="loc_dk_NoncashfinancingactivitiesAbstract_B17F37643294539B0E43ED10CF13ED19" xlink:type="locator" />
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    <link:label id="lab_dk_Noncashfixedassetscontributionstounitholders_0DB5DDB2F48CD973DEABED10CF143147_verboseLabel_en-US" xlink:label="lab_dk_Noncashfixedassetscontributionstounitholders_0DB5DDB2F48CD973DEABED10CF143147" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Sponsor contribution of fixed assets</link:label>
    <link:loc xlink:href="dk-20181231.xsd#dk_Noncashfixedassetscontributionstounitholders" xlink:label="loc_dk_Noncashfixedassetscontributionstounitholders_0DB5DDB2F48CD973DEABED10CF143147" xlink:type="locator" />
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    <link:label id="lab_us-gaap_ScheduleOfShareBasedCompensationActivityTableTextBlock_538869727FABA1D8481AEB95814C7A69_terseLabel_en-US" xlink:label="lab_us-gaap_ScheduleOfShareBasedCompensationActivityTableTextBlock_FD2BC9FDCFB7579CB50770A8EAD8EB04" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Schedule of Share-based Compensation, Phantom Units Award Activity</link:label>
    <link:label id="lab_us-gaap_ScheduleOfShareBasedCompensationActivityTableTextBlock_538869727FABA1D8481AEB95814C7A69_label_en-US" xlink:label="lab_us-gaap_ScheduleOfShareBasedCompensationActivityTableTextBlock_FD2BC9FDCFB7579CB50770A8EAD8EB04" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Share-based Compensation, Activity [Table Text Block]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ScheduleOfShareBasedCompensationActivityTableTextBlock" xlink:label="loc_us-gaap_ScheduleOfShareBasedCompensationActivityTableTextBlock_FD2BC9FDCFB7579CB50770A8EAD8EB04" xlink:type="locator" />
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    <link:label id="lab_us-gaap_DerivativeInstrumentsGainLossByHedgingRelationshipByIncomeStatementLocationByDerivativeInstrumentRiskTable_CEF6AE0311996B8BD20F85A692827854_terseLabel_en-US" xlink:label="lab_us-gaap_DerivativeInstrumentsGainLossByHedgingRelationshipByIncomeStatementLocationByDerivativeInstrumentRiskTable_CEF6AE0311996B8BD20F85A692827854" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Derivative Instruments, Gain (Loss) [Table]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_DerivativeInstrumentsGainLossByHedgingRelationshipByIncomeStatementLocationByDerivativeInstrumentRiskTable" xlink:label="loc_us-gaap_DerivativeInstrumentsGainLossByHedgingRelationshipByIncomeStatementLocationByDerivativeInstrumentRiskTable_CEF6AE0311996B8BD20F85A692827854" xlink:type="locator" />
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    <link:label id="lab_us-gaap_DerivativeGainLossOnDerivativeNet_2CCCE29CA8D2C132242A85A692858287_terseLabel_en-US" xlink:label="lab_us-gaap_DerivativeGainLossOnDerivativeNet_2CCCE29CA8D2C132242A85A692858287" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Derivative, gain (loss) on derivative, net</link:label>
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    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_DerivativeGainLossOnDerivativeNet" xlink:label="loc_us-gaap_DerivativeGainLossOnDerivativeNet_2CCCE29CA8D2C132242A85A692858287" xlink:type="locator" />
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    <link:label id="lab_us-gaap_RevenueFromContractWithCustomerTextBlock_370C1BE7AE7416118200D32DD36A78C2_terseLabel_en-US" xlink:label="lab_us-gaap_RevenueFromContractWithCustomerTextBlock_370C1BE7AE7416118200D32DD36A78C2" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Revenues</link:label>
    <link:label id="lab_us-gaap_RevenueFromContractWithCustomerTextBlock_370C1BE7AE7416118200D32DD36A78C2_label_en-US" xlink:label="lab_us-gaap_RevenueFromContractWithCustomerTextBlock_370C1BE7AE7416118200D32DD36A78C2" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Revenue from Contract with Customer [Text Block]</link:label>
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    <link:label id="lab_us-gaap_ScheduleOfChangeInAssetRetirementObligationTableTextBlock_688D86776256C61F7AEDEB9580EB4C1F_terseLabel_en-US" xlink:label="lab_us-gaap_ScheduleOfChangeInAssetRetirementObligationTableTextBlock_7A9998277DFB5B61B58489CF6D8D5A0B" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Schedule of Change in Asset Retirement Obligation</link:label>
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