Exhibit 10.15.1

When Recorded, Mail To:

Attn: DJ Land Manager

1625 Broadway, Suite 2200

Denver, CO 80202

SECOND AMENDED AND RESTATED

PRODUCED WATER SERVICES AGREEMENT

SECOND AMENDED AND RESTATED

AGREEMENT ADDENDUM 04

BRONCO

This AGREEMENT ADDENDUM 04 (this “Agreement Addendum”) (a) shall be effective as among the Persons named below as “Producer” and “Midstream Co” as of the date specified below as the “Effective Date,” (b) incorporates the Second Amended and Restated Agreement Terms and Conditions Relating to Produced Water Services (the “Agreement Terms and Conditions”), which were last amended effective as of March 31, 2016 and recorded in the real property records of Weld County, Colorado on             , as            and (c) together with the Agreement Terms and Conditions, shall constitute one contract and shall be the Agreement of the Parties. Except as otherwise set forth herein (i) all terms shall have the meanings assigned to such terms in the Agreement Terms and Conditions and (ii) all references to Exhibits, Appendices, Articles, Sections, subsections and other subdivisions refer to the corresponding Exhibits, Appendices, Articles, Sections, subsections and other subdivisions of or to the Agreement Terms and Conditions.

Producer desires to contract with Midstream Co for Midstream Co to provide the Services utilizing the Individual System, and Midstream Co desires to provide the Services to Producer, on the terms and subject to the conditions of this Agreement.

NOW, THEREFORE, in consideration of the mutual agreements in this Agreement, Midstream Co and Producer hereby agree as follows:

Producer	Noble Energy, Inc., a Delaware corporation
Midstream Co	Gunnison River DevCo LP, a Delaware limited partnership

Agreement Addendum 04 – Page 1

Second Amended and Restated Produced Water Services Agreement

Parties	The term “Party” or “Parties” shall refer to the Producer and Midstream Co identified in this Agreement Addendum
Effective Date	March 31, 2016
Dedication Area	The Bronco integrated development plan area, as such area was defined by Producer on the Effective Date, and which consists of the following areas within Weld County, Colorado

Township	Range	Section
T5N	R65W	13, 21-29, 31-36
T5N	R64W	7-9, 16-21, 28-33
T4N	R64W	4-9, 16-21, 28-31
T4N	R65W	ALL
T4N	R67W	25, 36
T4N	R66W	1-3, 8-36

	Except and excluding the wells, leases and other acreage described in the property exhibits attached to the Releases of Dedication
Individual First Phase Rate	The Individual First Phase Rate shall be determined by the Parties prior to Services being provided by Midstream Co to Producer in the Dedication Area.
Individual Second Phase Rate	Individual Second Phase Rate applied to each Barrel for which Producer elects to receive disposal services	Individual Second Phase Rate applied to each Barrel for which Producer elects to receive recycling services
	The Individual Second Phase Rate shall be determined by the Parties prior to Services being provided by Midstream Co to Producer in the Dedication Area.	The Individual Second Phase Rate shall be determined by the Parties prior to Services being provided by Midstream Co to Producer in the Dedication Area.

Deviations from Service Conditions (the specifications in this section supersede the applicable

language from Article 7)

NONE

Additional Revisions

NONE

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Second Amended and Restated Produced Water Services Agreement

Notices and Payments
Notice Address – General Matters & Correspondence	Midstream Co: Midstream Co c/o Noble Midstream Services, LLC 1001 Noble Energy Way Houston, TX 77070 Attention:     Chief Financial Officer                      John F. Bookout, IV Telephone:   (832) 639-7134 Email:           John.Bookout@nblenergy.com Producer: Noble Energy, Inc. 1625 Broadway, Ste 2200 Denver, CO 80202 Attention:     Director of USO Finance,                      Gerald Free Telephone:    (303) 228-4174 Email: Gerald.Free@nblenergy.com
Notice Address – Operational Matters	Midstream Co: Midstream Co c/o Noble Midstream Services, LLC 1001 Noble Energy Way Houston, TX 77070 Attention:     Chief Operating Officer                      John C. Nicholson Telephone:   (281) 876-6186 Email:           John.Nicholson@nblenergy.com Producer: Noble Energy, Inc. 1625 Broadway, Ste 2200 Denver, CO 80202 Attention:     Vice President – DJ Business Unit                      Mark Patteson

Agreement Addendum 04 – Page 3

Second Amended and Restated Produced Water Services Agreement

Notice Address – Force Majeure and Disposal or Recycling interruptions

Midstream Co: Midstream Co c/o Noble Midstream Services, LLC 1001 Noble Energy Way Houston, TX 77070 Attention:     Chief Operating Officer                      John C. Nicholson Telephone:   (281) 876-6186 Email:           John.Nicholson@nblenergy.com Producer: Noble Energy, Inc. 1625 Broadway, Ste 2200 Denver, CO 80202 Attention:     Director of USO Finance,                      Gerald Free Telephone:    (303) 228-4174 Email: Gerald.Free@nblenergy.com

Notice Address – Invoicing Matters

Midstream Co: Midstream Co c/o Noble Midstream Services, LLC 1001 Noble Energy Way Houston, TX 77070 Attention: Ian Dams Telephone: (832) 639-7406 Email: ian.dams@nblenergy.com Producer: 1001 Noble Energy Way Houston, TX 77070 Attention:     Director of Revenue Accounting                      John Nedelka Telephone:    (281) 872-3120 Email:           John.Nedelka@nblenergy.com

Agreement Addendum 04 – Page 4

Second Amended and Restated Produced Water Services Agreement

Payments by Electronic Funds Transfer Midstream Co:   ABA for wire: 021000021 ABA for ACH: 111000614 Account Number: 780162371 Account Name: Gunnison River DevCo LP Financial Institution: JP Morgan Bank Swift: CHASUS33   Producer:   ABA/Routing Number: 021000021 Account Number: 08805135066 Account Name: Noble Energy, Inc. Financial Institution: JP Morgan Bank Swift: CHASUS33

(End of Agreement Addendum 04)

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Second Amended and Restated Produced Water Services Agreement

IN WITNESS WHEREOF, the Parties hereto have executed this Agreement in duplicate originals to be effective as of the Effective Date.

“Producer”
NOBLE ENERGY, INC.
By:	/s/ Gary W. Willingham
	Gary W. Willingham
	Executive Vice President

STATE OF TEXAS	)
	)	ss.
COUNTY OF HARRIS	)

The foregoing instrument was acknowledged before me this 26th day of April, 2016 by Gary W. Willingham as Executive Vice President of Noble Energy, Inc., a Delaware corporation, on behalf of said corporation.

/s/ Vickie L. Graham

Notary Public in and for the State of Texas

Agreement Addendum 04 – Page 1

Second Amended and Restated Produced Water Services Agreement

“Midstream Co”
GUNNISON RIVER DEVCO LP     By: Gunnison River DevCo GP LLC             By: Noble Midstream Services, LLC
By:	/s/ Terry R. Gerhart
	Terry R. Gerhart
	Chief Executive Officer

STATE OF TEXAS	)
	)	ss.
COUNTY OF HARRIS	)

The foregoing instrument was acknowledged before me this 26th day of April, 2016, by Terry R. Gerhart, Chief Executive Officer of Noble Midstream Services, LLC, a Delaware limited liability company, which is the sole member of Gunnison River DevCo GP LLC, which is the general partner of Gunnison River DevCo LP, a Delaware limited partnership, on behalf of said company.

/s/ Joanne Garner

Notary Public in and for the State of Texas

Agreement Addendum 04 – Page 2

Second Amended and Restated Produced Water Services Agreement