Exhibit 10.01

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ELEVENTH AMENDMENT
TO
LETTER OF CREDIT AGREEMENT
dated as of
APRIL 10, 2019
among

NUSTAR LOGISTICS, L.P.,
NUSTAR ENERGY L.P.,
The Lenders Party Hereto
and
MIZUHO BANK, LTD.,
as Issuing Bank and Administrative Agent

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ELEVENTH AMENDMENT TO LETTER OF CREDIT AGREEMENT

THIS ELEVENTH AMENDMENT TO LETTER OF CREDIT AGREEMENT (this
“Eleventh Amendment”) dated as of April 10, 2019, is among NUSTAR LOGISTICS,
L.P., a Delaware limited partnership (the “Borrower”); NUSTAR ENERGY L.P., a
Delaware limited partnership (the “MLP”); NUSTAR PIPELINE OPERATING PARTNERSHIP
L.P., a Delaware limited partnership (the “Subsidiary Guarantor” and, together
with the Borrower and the MLP, the “Obligors”); MIZUHO BANK, LTD. (formerly
known as Mizuho Corporate Bank, Ltd.), as administrative agent (in such
capacity, the “Administrative Agent”) and as Issuing Bank; and the undersigned
Lender (collectively, the “Lenders”).
R E C I T A L S
A.    The Borrower, the MLP, the Administrative Agent and the Lenders are
parties to that certain Letter of Credit Agreement dated as of June 5, 2012 (as
amended, the “Reimbursement Agreement”), pursuant to which the Issuing Bank and
the Lenders have made certain extensions of credit available to the Borrower.
B.    The Subsidiary Guarantor is a party to that certain Subsidiary Guaranty
Agreement dated as of June 5, 2012 made by each of the Guarantors (as defined
therein) in favor of the Administrative Agent (the “Subsidiary Guaranty”).
C.    The Borrower has requested and the Administrative Agent, the Issuing Bank,
and the Lenders have agreed to amend certain provisions of the Reimbursement
Agreement.
NOW, THEREFORE, in consideration of the premises and the mutual covenants herein
contained, for good and valuable consideration, the receipt and sufficiency of
which are hereby acknowledged, the parties hereto agree as follows:
Section 1.Defined Terms. Each capitalized term used herein but not otherwise
defined herein has the meaning given such term in the Reimbursement Agreement.
Unless otherwise indicated, all references to Sections and Articles in this
Eleventh Amendment refer to Sections and Articles of the Reimbursement
Agreement.

Section 2.Amendments to Reimbursement Agreement.

2.1    Amendment to Section 1.01. Section 1.01 of the Reimbursement Agreement is
hereby amended to delete the definition of “Maturity Date” in its entirety and
replace it with the following:

“Maturity Date means June 5, 2020.”

2.2    Amendment to Schedule 3.12. Schedule 3.12 (Subsidiaries) is hereby
deleted in its entirety and replaced with Schedule 3.12 attached hereto.

Section 3.Conditions Precedent. This Eleventh Amendment shall not become
effective until the date on which each of the following conditions is satisfied
(or waived in accordance with Section 10.02 of the Reimbursement Agreement) (the
“Effective Date”):

3.1    The Administrative Agent, the Issuing Bank, and the Lenders shall have
received all fees and other amounts due and payable, if any, in connection with
this Eleventh Amendment on or prior to the Effective Date.

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3.2    The Administrative Agent shall have received from the Borrower, the MLP,
the Subsidiary Guarantor, the Issuing Bank and the Lenders, counterparts (in
such number as may be requested by the Administrative Agent) of this Eleventh
Amendment signed on behalf of such Persons.

3.3    The Administrative Agent shall have received such other documents as the
Administrative Agent or special counsel to the Administrative Agent may
reasonably request.

3.4    No Default shall have occurred and be continuing, after giving effect to
the terms of this Eleventh Amendment.

Section 4.Miscellaneous.

4.1    Confirmation. The provisions of the Reimbursement Agreement, as amended
by this Eleventh Amendment, shall remain in full force and effect following the
effectiveness of this Eleventh Amendment.

4.2    Ratification and Affirmation; Representations and Warranties. Each
Obligor hereby: (a) acknowledges the terms of this Eleventh Amendment; (b)
ratifies and affirms its obligations under, and acknowledges, renews and extends
its continued liability under, each Loan Document to which it is a party and
agrees that each Loan Document to which it is a party remains in full force and
effect, except as expressly amended hereby, after giving effect to the
amendments contained herein; (c) agrees that from and after the Effective Date
each reference to the Reimbursement Agreement in the Subsidiary Guaranty and the
other Loan Documents shall be deemed to be a reference to the Reimbursement
Agreement, as amended by this Eleventh Amendment; and (d) represents and
warrants to the Administrative Agent, the Issuing Bank, and the Lenders that as
of the date hereof, after giving effect to the terms of this Eleventh Amendment:
(i) all of the representations and warranties contained in each Loan Document to
which it is a party are true and correct, unless such representations and
warranties are stated to relate to a specific earlier date, in which case, such
representations and warranties shall continue to be true and correct as of such
earlier date and (ii) no Default has occurred and is continuing.

4.3    Loan Document. This Eleventh Amendment is a “Loan Document” as defined
and described in the Reimbursement Agreement and all of the terms and provisions
of the Reimbursement Agreement relating to Loan Documents shall apply hereto.

4.4    Counterparts. This Eleventh Amendment may be executed by one or more of
the parties hereto in any number of separate counterparts, and all of such
counterparts taken together shall be deemed to constitute one and the same
instrument. Delivery of this Eleventh Amendment by facsimile transmission shall
be effective as delivery of a manually executed counterpart hereof.

4.5    NO ORAL AGREEMENT. THIS ELEVENTH AMENDMENT, THE REIMBURSEMENT AGREEMENT
AND THE OTHER LOAN DOCUMENTS EXECUTED IN CONNECTION HEREWITH AND THEREWITH
REPRESENT THE FINAL AGREEMENT AMONG THE PARTIES AND MAY NOT BE CONTRADICTED BY
EVIDENCE OF PRIOR, CONTEMPORANEOUS, OR UNWRITTEN ORAL AGREEMENTS OF THE PARTIES.
THERE ARE NO ORAL AGREEMENTS BETWEEN THE PARTIES.

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4.6    GOVERNING LAW. THIS ELEVENTH AMENDMENT (INCLUDING, BUT NOT LIMITED TO,
THE VALIDITY AND ENFORCEABILITY HEREOF) SHALL BE GOVERNED BY, AND CONSTRUED IN
ACCORDANCE WITH, THE LAWS OF THE STATE OF NEW YORK.

[SIGNATURES BEGIN ON NEXT PAGE]

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IN WITNESS WHEREOF, the parties hereto have caused this Eleventh Amendment to be
duly executed as of the date first written above.

NUSTAR LOGISTICS, L.P.

By:    NuStar GP, Inc., its General Partner

By:    /s/ Thomas R. Shoaf        
Name:    Thomas R. Shoaf
Title:     Executive Vice President and Chief Financial Officer

NUSTAR ENERGY L.P.

By:
Riverwalk Logistics, L.P., its General Partner

By:    NuStar GP, LLC, its General Partner

By:    /s/ Thomas R. Shoaf        
Name:    Thomas R. Shoaf
Title:     Executive Vice President and Chief Financial Officer

NUSTAR PIPELINE OPERATING PARTNERSHIP L.P.

By:
NuStar Pipeline Company, LLC its General Partner

By:    /s/ Thomas R. Shoaf        
Name:    Thomas R. Shoaf
Title:     Executive Vice President and Chief Financial Officer

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MIZUHO BANK, LTD.
(formerly known as Mizuho Corporate Bank, Ltd.),
as Issuing Bank, as Administrative Agent, and as a Lender

By:     /s/ Donna DeMagistris            
Name: Donna DeMagistris
Title: Authorized Signatory

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SCHEDULE 3.12
Subsidiaries

Subsidiary
Jurisdiction of Organization
Restricted/
Unrestricted/Material
Ownership Percentage
Bicen Development Corporation N.V.
Netherlands
Restricted
100%
Cooperatie NuStar Holdings U.A.
Netherlands
Restricted
100%
LegacyStar Services, LLC
Delaware
Restricted
100%
NS Security Services, LLC
Delaware
Restricted
100%
NuStar Burgos, LLC
Delaware
Restricted
100%
NuStar Caribe Terminals, Inc.
Delaware
Restricted
100%
NuStar Energy Services, Inc.
Delaware
Restricted
100%
NuStar Finance LLC
Delaware
Restricted
100%
NuStar GP Holdings, LLC
Delaware
Restricted
100%
NuStar GP, Inc.
Delaware
Restricted
100%
NuStar GP, LLC
Delaware
Restricted
100%
NuStar Holdings B.V.
Netherlands
Restricted
100%
NuStar Internacional, S de R.L. de C.V.
Mexico
Restricted
100%
NuStar Logistics, L.P.
Delaware
Restricted - Material
100%
NuStar Permian Crude Logistics, LLC
Delaware
Restricted
100%
NuStar Permian Holdings, LLC
Delaware
Restricted
100%
NuStar Permian Transportation and Storage, LLC
Delaware
Restricted - Material
100%
NuStar Pipeline Company, LLC
Delaware
Restricted
100%
NuStar Pipeline Holding Company, LLC
Delaware
Restricted
100%
NuStar Pipeline Operating Partnership L.P.
Delaware
Restricted - Material
100%
NuStar Pipeline Partners L.P.
Delaware
Restricted
100%
NuStar Refining, LLC
Delaware
Restricted
100%
NuStar Services Company LLC
Delaware
Restricted
100%
NuStar Supply & Trading LLC
Delaware
Restricted
100%
NuStar Terminals Canada Co.
Canada
Restricted
100%
NuStar Terminals Canada Holdings Co.
Canada
Restricted
100%
NuStar Terminals Canada Partnership
Canada
Restricted
100%
NuStar Terminals Corporation N.V.
Curacao
Restricted
100%
NuStar Terminals Delaware, Inc.
Delaware
Restricted
100%
NuStar Terminals International N.V.
Curacao
Restricted
100%
NuStar Terminals Marine Services N.V.
Netherlands
Restricted
100%
NuStar Terminals New Jersey, Inc.
Delaware
Restricted
100%
NuStar Terminals N.V.
Netherlands
Restricted - Material
100%
NuStar Terminals Operations Partnership L.P.
Delaware
Restricted
100%
NuStar Terminals Partners TX L.P.
Delaware
Restricted
100%
NuStar Terminals Services, Inc.
Delaware
Restricted
100%
NuStar Terminals Texas, Inc.
Delaware
Restricted
100%
NuStar Texas Holdings, Inc.
Delaware
Restricted
100%
Point Tupper Marine Services Co.
Canada
Restricted
100%
Riverwalk Holdings, LLC
Delaware
Restricted
100%
Riverwalk Logistics, L.P.
Delaware
Restricted
100%

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Subsidiary
Jurisdiction of Organization
Restricted/
Unrestricted/Material
Ownership Percentage
Saba Company N.V.
Netherlands
Restricted
100%
Seven Seas Steamship Company (Sint Eustatius) N.V.
Netherlands
Restricted
100%
Shore Terminals LLC
Delaware
Restricted
100%
ST Linden Terminal, LLC
Delaware
Restricted
100%
Star Creek Ranch, LLC
Delaware
Restricted
100%