Exhibit 10.5.1

FIRST AMENDMENT TO CREDIT AGREEMENT

This First Amendment to Credit Agreement (this “Amendment”) is entered into
effective as of February 12, 2017 (the “First Amendment Effective Date”), by and
among Noble Midstream Services, LLC, a Delaware limited liability company (the
“Borrower”), Noble Midstream Partners LP, a Delaware limited partnership (the
“Parent”), JPMorgan Chase Bank, N.A., as administrative agent (in such capacity,
the “Administrative Agent”) for the lenders party to the Credit Agreement
referred to below (collectively, the “Lenders”) and the undersigned Lenders
party hereto. Terms used in this Amendment, but not defined herein, have the
meaning set forth in the Credit Agreement.
RECITALS
WHEREAS, the Borrower, the Parent, the Administrative Agent and the Lenders are
party to that certain Credit Agreement dated as of September 20, 2016 (as
amended, supplemented or modified prior to the date hereof, the “Credit
Agreement”);
WHEREAS, pursuant to the Credit Agreement, the Lenders have made Commitments to
the Borrower;
WHEREAS, the Borrower has advised the Administrative Agent and the Lenders that
it has formed Trinity River DevCo LLC, a Delaware limited liability company
(“Trinity River”), which is a wholly-owned Subsidiary (but not a Material
Subsidiary) of the Borrower;
WHEREAS, the Borrower has advised the Administrative Agent and the Lenders that
Trinity River intends to subscribe to acquire 50% of the membership interests
(the “Subscription”) in a limited liability company (“HoldCo”) that will,
directly or indirectly, hold an oil pipeline originating in the Permian Basin
and terminating in Crane, TX, with the consummation of such Subscription
constituting an Investment anticipated to be consummated within 90 days of the
signing of definitive documentation of the Subscription and no later than
December 31, 2017 (such date of consummation, the “First Investment Date”) and
that Trinity River shall constitute a Material Subsidiary after giving effect to
such acquisition.
WHEREAS, subject to and upon the terms and conditions set forth herein, the
Lenders have agreed, in accordance with Section 10.01 of the Credit Agreement,
to amend the Credit Agreement to permit Trinity River to make such Investment in
HoldCo as of the First Investment Date;
NOW THEREFORE, for and in consideration of the mutual covenants and agreements
herein contained and other good and valuable consideration, the receipt and
sufficiency of which are hereby acknowledged and confessed, the Borrower, the
Parent, the Administrative Agent and the Lenders hereby agree as follows:
Section 1.Amendments. In reliance on the representations, warranties, covenants
and agreements contained in this Amendment, and subject to the satisfaction of
the conditions precedent set forth in Section 2 hereof, the Credit Agreement
shall be amended effective as of the First Amendment Effective Date in the
manner provided in this Section 1.

1

--------------------------------------------------------------------------------

1.1    Additional Definitions. Section 1.01 of the Credit Agreement is hereby
amended to add thereto in alphabetical order the following definitions which
shall read in full as follows:
“First Investment Date” means the date of the first Midland Pipeline Investment.
“Midland Pipeline Investment” has the meaning specified in Section 7.10(j).
1.2    Amendment to Section 7.10. Section 7.10 of the Credit Agreement shall be
amended to (a) delete the word “and” at the end of clause (h) thereof, (b) amend
and restate the “.” at the end of clause (i) thereof with “;” and (c) insert a
new clause (j) which shall read in full as follows:
(j) Investments made by a Loan Party or a Subsidiary of a Loan Party in
membership interests of a limited liability company (“HoldCo”) that directly or
indirectly holds an oil pipeline originating in the Permian Basin and
terminating in Crane, TX (each a “Midland Pipeline Investment”); provided that:
(i) on the first date of such Midland Pipeline Investment, if the Loan Party or
Subsidiary of such Loan Party would constitute a Material Subsidiary as a result
of such Investment (but solely to the extent such Person was not a Material
Subsidiary prior to the making of such Midland Pipeline Investment) the
Administrative Agent shall have received:
(A) a Supplement to the Guarantee Agreement, dated as of such date, executed by
such Person;
(B)    a certificate of a secretary or assistant secretary of Borrower, acting
in its capacity as the sole member of such Person, certifying as to the
incumbency and genuineness of the signature of each Responsible Officer,
secretary and assistant secretary of Borrower executing the Loan Documents to
which such Person is a party and certifying that attached thereto is a true,
correct and complete copy of the certificate or articles of limited partnership,
formation or incorporation, as applicable, of such Person and all amendments
thereto, certified as of a recent date by the appropriate Governmental Authority
in its jurisdiction of organization, the limited partnership agreement,
operating agreement, bylaws or other governing document, as applicable, of such
Person as in effect on the First Investment Date and resolutions duly adopted by
the board of directors, or other governing body, as applicable, of Borrower,
acting in its capacity as sole member of such Person authorizing and approving
the transactions contemplated hereunder and the execution, delivery and
performance of the Loan Documents to which such Person is a party;

2

--------------------------------------------------------------------------------

(C)     certificates as of a recent date setting forth the good standing of such
Person under the Laws of (i) its jurisdiction of organization and (ii) each
other jurisdiction in which the failure to be qualified to do business in such
jurisdiction would reasonably be expected to have a Material Adverse Effect;
(D)    an opinion of counsel to the Loan Parties, addressed to the
Administrative Agent and each Lender, in each case as to such customary matters
regarding the transactions contemplated by this Section 7.10(j)(i) in the form
attached hereto as Exhibit 7.10(j) as the Administrative Agent or its counsel
may reasonably request, which opinion shall permit reliance thereon by assignees
permitted by Section 10.07(b), subject to customary conditions;
(E)    customary “know your customer” information regarding such Person as
requested by Administrative Agent; and
(F)     the First Investment Date shall be no later than December 31, 2017.
and (ii) at the time of the making of any Midland Pipeline Investment in excess
of $1,000,000, the Borrower shall have delivered to the Administrative Agent a
certificate, signed by a Responsible Officer of the Borrower, setting forth (A)
the aggregate amount of all Midland Pipeline Investments made prior to such date
(which amount shall not exceed $100,000,000) and (B) the amount of all such
Midland Pipeline Investments being made on the date of such certificate.
1.3    Exhibit 7.10(j). The Credit Agreement is hereby amended to add thereto a
new Exhibit 7.10(j) in the form of Exhibit 7.10(j) attached hereto.
Section 2.    Conditions Precedent to Amendment. The effectiveness of this
Amendment is subject to the satisfaction of each of the following conditions
precedent.
2.1    Counterparts. On or before the First Amendment Effective Date,
Administrative Agent shall have received counterparts hereof duly executed by
the Borrower, the Parent and the Lenders constituting at least the Required
Lenders.
2.2    Fees and Expenses. On or before the First Amendment Effective Date, the
Borrower shall have paid to Administrative Agent all fees due and owing to
Administrative Agent (to the extent an invoice has been received by Borrower at
least 24 hours prior to the First Amendment Effective Date) pursuant to or in
connection with this Amendment including, without limitation, all reasonable
fees and expenses incurred by Administrative Agent (including, without
limitation, fees and expenses of counsel to Administrative Agent) in the
preparation, execution, review and negotiation of this Amendment and the other
Loan Documents.

3

--------------------------------------------------------------------------------

2.3    No Material Adverse Effect. Prior to the First Amendment Effective Date
there shall not have occurred any events that, individually or in the aggregate,
have had a Material Adverse Effect.
2.4    No Default. As of the First Amendment Effective Date, no Default or Event
of Default shall have occurred which is continuing.
Section 3.    Subsidiary Listing. On or before the First Investment Date,
Administrative Agent shall have received an updated listing of the Subsidiaries
of Parent, consistent (except for the timing of delivery) with the listing
described in Section 6.01(c) of the Credit Agreement, and otherwise in the form
of Schedule 5.09 of the Credit Agreement.
Section 4.    Representations and Warranties of the Borrower and the Parent. To
induce Lenders and Administrative Agent to enter into this Amendment, the
Borrower and the Parent each hereby represents and warrants to Lenders and
Administrative Agent, on the First Amendment Effective Date, as follows:
4.1    Reaffirm Existing Representations and Warranties. Each representation and
warranty of each Loan Party contained in the Credit Agreement and the other Loan
Documents, or which are contained in any document furnished at any time under or
in connection herewith or therewith, is true and correct in all material
respects (or if qualified by materiality or Material Adverse Effect, in all
respects) on the date hereof (or, if such representation speaks as of an earlier
date, as of such earlier date).
4.2    Due Authorization; No Conflict. The execution, delivery and performance
by the Borrower and the Parent of this Amendment are within the Borrower’s
limited liability company powers and the Parent’s partnership powers, have been
duly authorized by all necessary action, require no action by or in respect of,
or filing with, any governmental body, agency or official and do not violate or
constitute a default under any provision of applicable law or any material
agreement binding upon the Borrower, the Parent or any other Loan Party or
result in the creation or imposition of any Lien upon any of the assets of the
Borrower, the Parent or any other Loan Party except Liens permitted by Section
7.01 of the Credit Agreement.
4.3    Validity and Enforceability. This Amendment constitutes the valid and
binding obligation of the Borrower and the Parent enforceable in accordance with
its terms, except as (a) the enforceability thereof may be limited by
bankruptcy, insolvency or similar laws affecting creditor’s rights generally,
and (b) the availability of equitable remedies may be limited by equitable
principles of general application.
4.4    No Default or Event of Default. No Default or Event of Default has
occurred which is continuing.
4.5    Acknowledgment of No Defenses. The Borrower and the Parent each
acknowledges that it has no defense to (a) the Borrower’s obligation to pay the
Obligations when due, or (b) the validity, enforceability or binding effect
against the Borrower, the Parent or any other Loan Party

4

--------------------------------------------------------------------------------

of the Credit Agreement or any of the other Loan Documents (to the extent a
party thereto) or any Liens intended to be created thereby.
4.6    Inaction by Administrative Agent or Lenders. No failure or delay on the
part of Administrative Agent or Lenders to exercise any right or remedy under
the Credit Agreement, any other Loan Documents or applicable law shall operate
as a waiver thereof, nor shall any single or partial exercise of any right or
remedy preclude any other or further exercise of any right or remedy, all of
which are cumulative and may be exercised without notice except to the extent
notice is expressly required (and has not been waived) under the Credit
Agreement, the other Loan Documents and applicable law.
Section 5.    Miscellaneous.
5.1    Reaffirmation of Loan Documents. Any and all of the terms and provisions
of the Credit Agreement and the Loan Documents shall, except as amended and
modified hereby, remain in full force and effect. The amendments contemplated
hereby shall not limit or impair any Liens securing the Obligations, each of
which are hereby ratified, affirmed and extended to secure the Obligations.
5.2    Loan Document. This Amendment constitutes a Loan Document.
5.3    Parties in Interest. All of the terms and provisions of this Amendment
shall bind and inure to the benefit of the parties hereto and their respective
successors and assigns.
5.4    Legal Expenses. The Borrower hereby agrees to pay on demand all
reasonable fees and expenses of counsel to Administrative Agent incurred by
Administrative Agent in connection with the preparation, negotiation and
execution of this Amendment and all related documents.
5.5    Counterparts. This Amendment may be executed in counterparts, including,
without limitation, by electronic signature, and all parties need not execute
the same counterpart; however, no party shall be bound by this Amendment until
the Borrower, the Parent, the Guarantors and the Lenders constituting at least
the Required Lenders have executed a counterpart. Facsimiles or other electronic
transmissions (e.g. pdfs) of such executed counterparts shall be effective as
originals.
5.6    Complete Agreement. THIS AMENDMENT, THE CREDIT AGREEMENT AND THE OTHER
LOAN DOCUMENTS REPRESENT THE FINAL AGREEMENT BETWEEN THE PARTIES AND MAY NOT BE
CONTRADICTED BY EVIDENCE OF PRIOR, CONTEMPORANEOUS OR ORAL AGREEMENTS OF THE
PARTIES. THERE ARE NO UNWRITTEN ORAL AGREEMENTS BETWEEN OR AMONG THE PARTIES.
5.7    Headings. The headings, captions and arrangements used in this Amendment
are, unless specified otherwise, for convenience only and shall not be deemed to
limit, amplify or modify the terms of this Amendment, nor affect the meaning
thereof.

5

--------------------------------------------------------------------------------

5.8    Governing Law. THIS AMENDMENT SHALL BE GOVERNED BY, AND CONSTRUED IN
ACCORDANCE WITH, THE LAWS OF THE STATE OF NEW YORK.
IN WITNESS WHEREOF, the parties hereto have caused this Amendment to be duly
executed by their respective authorized officers on the date and year first
above written.
[Signature Pages to Follow]

6

--------------------------------------------------------------------------------

BORROWER:
NOBLE MIDSTREAM SERVICES, LLC, a Delaware limited liability company

By: /s/ Terry R. Gerhart    
Terry R. Gerhart
        Chief Executive Officer
PARENT:
NOBLE MIDSTREAM PARTNERS LP, a Delaware limited partnership

By: Noble Midstream GP LLC, its General Partner
By: /s/ Terry R. Gerhart    
Terry R. Gerhart
Chief Executive Officer

Signature Page to NBLX Credit Facility First Amendment

--------------------------------------------------------------------------------

ADMINISTRATIVE AGENT:            JPMORGAN CHASE BANK, N.A.,
as Administrative Agent, a Swing Line Lender, an L/C Issuer
                            and a Lender
By:     /s/ Debra Hrelja            
                        Name:    Debra Hrelja
                        Title:    Vice President

Signature Page to NBLX Credit Facility First Amendment

--------------------------------------------------------------------------------

LENDERS:                    BANK OF AMERICA, N.A.,
as Lender, a Swing Line Lender and an L/C Issuer
By:     /s/ Greg M. Hall                 
                        Name:    Greg M. Hall
                        Title:    Vice President

Signature Page to NBLX Credit Facility First Amendment

--------------------------------------------------------------------------------

BARCLAYS BANK PLC,
as an L/C Issuer and a Lender
By:     /s/ Evan Moriarty                 
                        Name:    Evan Moriarty
                        Title:    Assistant Vice President

Signature Page to NBLX Credit Facility First Amendment

--------------------------------------------------------------------------------

CITIBANK, N.A.,
as a Lender
By:     /s/ Cathy Shepherd                 

                        Name:    Cathy Shepherd
Title:    Vice President

Signature Page to NBLX Credit Facility First Amendment

--------------------------------------------------------------------------------

DNB CAPITAL LLC,
as a Lender
By:     /s/ Caroline Adams                 
                        Name:    Caroline Adams
Title:    First Vice President
By:     /s/ Kristie Li                     
                        Name:    Kristie Li
Title:    Senior Vice President

DNB BANK ASA, NEW YORK BRANCH,
as an L/C Issuer
By:     /s/ Caroline Adams                 
                        Name:    Caroline Adams
Title:    First Vice President
By:     /s/ Kristie Li                     
                        Name:    Kristie Li
Title:    Senior Vice President

Signature Page to NBLX Credit Facility First Amendment

--------------------------------------------------------------------------------

THE BANK OF NOVA SCOTIA,
as Lender
By:     /s/ Mark Sparrow                 

                        Name:    Mark Sparrow
Title:    Director

Signature Page to NBLX Credit Facility First Amendment

--------------------------------------------------------------------------------

THE BANK OF TOKYO-MITSUBISHI UFJ, LTD.
as Lender
By:     /s/ Todd Vaubel                 

                        Name:    Todd Vaubel
Title:    Vice President

Signature Page to NBLX Credit Facility First Amendment

--------------------------------------------------------------------------------

BNP PARIBAS,
as Lender
By:     /s/ Ann Rhoads                 
Name:    Ann Rhoads
Title:    Managing Director
By:     /s/ Vincent Tarpet                 
Name:    Vincent Trapet
Title:    Director

Signature Page to NBLX Credit Facility First Amendment

--------------------------------------------------------------------------------

BRANCH BANKING AND TRUST COMPANY,
as Lender
By:     /s/ Sarah Bryson                 
Name:    Sarah Bryson
Title:    Senior Vice President

Signature Page to NBLX Credit Facility First Amendment

--------------------------------------------------------------------------------

DEUTSCHE BANK AG NEW YORK BRANCH,
as Lender
By:     /s/ Ming K. Chu                 
Name:    Ming K. Chu
Title:    Director

By:     /s/ Virginia Cosenza                 
Name:    Virginia Cosenza
Title:    Vice President

Signature Page to NBLX Credit Facility First Amendment

--------------------------------------------------------------------------------

FIFTH THIRD BANK,
as Lender
By:     /s/ Richard Butler                 
Name:    Richard Butler
Title:    Senior Vice President

Signature Page to NBLX Credit Facility First Amendment

--------------------------------------------------------------------------------

MIZUHO BANK, LTD.,
as Lender
By:     /s/ Leon Mo                     
Name:    Leon Mo
Title:    Authorized Signatory

Signature Page to NBLX Credit Facility First Amendment

--------------------------------------------------------------------------------

PNC BANK, NATIONAL ASSOCIATION,
as Lender
By:     /s/ Denise S. Davis                 
Name:    Denise S. Davis
Title:    Assistant Vice President

Signature Page to NBLX Credit Facility First Amendment

--------------------------------------------------------------------------------

SOCIETE GENERALE,
as Lender
By:     /s/ Diego Medina                 
Name:    Diego Medina
Title:    Director

Signature Page to NBLX Credit Facility First Amendment

--------------------------------------------------------------------------------

SUMITOMO MITSUI BANKING CORPORATION,
as Lender
By:     /s/ James D. Weinstein             
Name:    James D. Weinstein
Title:    Managing Director

Signature Page to NBLX Credit Facility First Amendment

--------------------------------------------------------------------------------

THE TORONTO-DOMINION BANK, NEW YORK BRANCH,
as Lender
By:     /s/ Annie Dorval                 
Name:    Annie Dorval
Title:    Authorized Signatory

Signature Page to NBLX Credit Facility First Amendment

--------------------------------------------------------------------------------

WELLS FARGO BANK, NATIONAL ASSOCIATION,
as Lender
By:     /s/ Jeffrey Cobb                 
Name:    Jeffrey Cobb
Title:    Director

Signature Page to NBLX Credit Facility First Amendment

--------------------------------------------------------------------------------

Exhibit 7.10(j)
Form of Certificate

Exhibit 7.10(j) - Form of Certificate for Investment
OFFICER’S CERTIFICATE
OF
NOBLE MIDSTREAM SERVICES, LLC
__________, 20___
The undersigned hereby certifies that [s]he is the [__________](1) of Noble
Midstream Services, LLC, a Delaware limited liability company (the “Borrower”),
and that as such [s]he is authorized to execute this certificate on behalf of
the Borrower. This certificate is being delivered pursuant to Section 7.10(j) of
that certain Credit Agreement dated as of September 20, 2016 (together with all
amendments or supplements thereto being the “Credit Agreement”), among the
Borrower, Noble Midstream Partners LP, a Delaware limited partnership, the
Lenders party thereto, JPMorgan Chase Bank, N.A., as Administrative Agent.
I hereby further certify that:
1.
The aggregate amount of all Midland Pipeline Investments made prior to the date
of this Certificate is $__________.

2.
The amount of the Midland Pipeline Investment made or to be made on the date of
this Certificate is $_________.

[Signature Page Follows]

(1) Certificate should be signed by a Responsible Officer which term includes
the chief executive officer, president,
executive vice president, senior vice president, chief financial officer,
principal accounting officer, treasurer or
assistant treasurer.

--------------------------------------------------------------------------------

EXECUTED AND DELIVERED on the ___ day of __________.
BORROWER:
NOBLE MIDSTREAM SERVICES, LLC

By:        
Name:        
Title:        

Exhibit 7.10(j) to NBLX Credit Facility First Amendment