Ownership Submission
FORM 4
Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).
UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934, Section 17(a) of the Public Utility Holding Company Act of 1935 or Section 30(h) of the Investment Company Act of 1940
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(Print or Type Responses)
1. Name and Address of Reporting Person *
Stonepeak Commonwealth Holdings LLC
  2. Issuer Name and Ticker or Trading Symbol
Dominion Energy Midstream Partners, LP [DM]
5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)
_____ Director _____ 10% Owner
_____ Officer (give title below) _____ Other (specify below)
(Last)
(First)
(Middle)
717 FIFTH AVENUE, 25TH FLOOR, 
3. Date of Earliest Transaction (Month/Day/Year)
01/28/2019
(Street)

NEW YORK, NY 10022
4. If Amendment, Date Original Filed(Month/Day/Year)
6. Individual or Joint/Group Filing(Check Applicable Line)
___ Form filed by One Reporting Person
_X_ Form filed by More than One Reporting Person
(City)
(State)
(Zip)
Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1.Title of Security
(Instr. 3)
2. Transaction Date (Month/Day/Year) 2A. Deemed Execution Date, if any (Month/Day/Year) 3. Transaction Code
(Instr. 8)
4. Securities Acquired (A) or Disposed of (D)
(Instr. 3, 4 and 5)
5. Amount of Securities Beneficially Owned Following Reported Transaction(s)
(Instr. 3 and 4)
6. Ownership Form: Direct (D) or Indirect (I)
(Instr. 4)
7. Nature of Indirect Beneficial Ownership
(Instr. 4)
Code V Amount (A) or (D) Price
Common Units 01/28/2019   C(1)(5)(6)   16,417,018 A (1) (5) (6) 16,417,018 D (2) (3) (4)  
Common Units 01/28/2019   J(5)(7)   16,417,018 D (5) (7) 0 D (2) (3) (4)  

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Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned
(e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security
(Instr. 3)
2. Conversion or Exercise Price of Derivative Security 3. Transaction Date (Month/Day/Year) 3A. Deemed Execution Date, if any (Month/Day/Year) 4. Transaction Code
(Instr. 8)
5. Number of Derivative Securities Acquired (A) or Disposed of (D)
(Instr. 3, 4, and 5)
6. Date Exercisable and Expiration Date
(Month/Day/Year)
7. Title and Amount of Underlying Securities
(Instr. 3 and 4)
8. Price of Derivative Security
(Instr. 5)
9. Number of Derivative Securities Beneficially Owned Following Reported Transaction(s)
(Instr. 4)
10. Ownership Form of Derivative Security: Direct (D) or Indirect (I)
(Instr. 4)
11. Nature of Indirect Beneficial Ownership
(Instr. 4)
Code V (A) (D) Date Exercisable Expiration Date Title Amount or Number of Shares
Series A Convertible Preferred Units (1) (5) (6) 01/28/2019   C(1)(5)(6)     16,417,018   (1)(5)(6)   (1)(5)(6) Common Units 16,417,018 (1) (5) (6) 0 D (2) (3) (4)  

Reporting Owners

Reporting Owner Name / Address Relationships
 Director  10% Owner  Officer  Other
Stonepeak Commonwealth Holdings LLC
717 FIFTH AVENUE, 25TH FLOOR
NEW YORK, NY 10022
       
Stonepeak Commonwealth Upper Holdings LLC
717 FIFTH AVENUE, 25TH FLOOR
NEW YORK, NY 10022
       
Stonepeak Infrastructure Fund II (AIV) LP
717 FIFTH AVENUE, 25TH FLOOR
NEW YORK, NY 10022
       
Stonepeak Associates II LLC
717 FIFTH AVENUE
25TH FLOOR
NEW YORK, NY 10022
       
Stonepeak GP Holdings II LP
717 FIFTH AVENUE
25TH FLOOR
NEW YORK, NY 10022
       
Stonepeak GP Investors II LLC
717 FIFTH AVENUE
25TH FLOOR
NEW YORK, NY 10022
       
Stonepeak GP Investors Manager LLC
717 FIFTH AVENUE, 25TH FLOOR
NEW YORK, NY 10022
       
Dorrell Michael B.
717 FIFTH AVENUE, 25TH FLOOR
NEW YORK, NY 10022
       
Vichie Trent D
717 FIFTH AVENUE, 25TH FLOOR
NEW YORK, NY 10022
       

Signatures

 /s/ Michael Dorrell   01/30/2019
**Signature of Reporting Person Date

 /s/ Trent Vichie   01/30/2019
**Signature of Reporting Person Date

Explanation of Responses:

* If the form is filed by more than one reporting person, see Instruction 4(b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations. See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
(1) The Series A Convertible Preferred Units representing partner interests in the Issuer (the "Preferred Units") are convertible into Common Units representing limited partner interests in the Issuer (the "Common Units"), on a one-to-one basis (subject to customary anti-dilution adjustments) (i) at the holder's election, following the second anniversary of the December 1, 2016 issue date (the "Issue Date"), and (ii) by the Issuer, following the third anniversary of the Issue Date, subject to certain conditions.
(2) These Preferred Units and Common Units are owned directly by Stonepeak Commonwealth Holdings LLC, and indirectly by Stonepeak Commonwealth Upper Holdings LLC, Stonepeak Infrastructure Fund II (AIV) LP, Stonepeak Associates II LLC, Stonepeak GP Holdings II LP, Stonepeak GP Investors II LLC, Stonepeak GP Investors Manager LLC, Michael Dorrell and Trent Vichie.
(3) Stonepeak Commonwealth Upper Holdings LLC is the managing member of Stonepeak Commonwealth Holdings LLC. Stonepeak Infrastructure Fund II (AIV) LP is the managing member of Stonepeak Commonwealth Upper Holdings LLC. Stonepeak Associates II LLC is the general partner of Stonepeak Infrastructure Fund II (AIV) LP. Stonepeak GP Holdings II LP is the sole member of Stonepeak Associates II LLC. Stonepeak GP Investors II LLC is the general partner of Stonepeak GP Holdings II LP. Stonepeak GP Investors Manager LLC is the managing member of Stonepeak GP Investors II LLC. Each of Michael Dorrell and Trent Vichie serve as a managing member of Stonepeak GP Investors Manager LLC.
(4) Each Reporting Person disclaims beneficial ownership of the Preferred Units and the Common Units except to the extent of his or its pecuniary interest therein, and this report shall not be deemed an admission that such Reporting Person is the beneficial owner of the Preferred Units or the Common Units for purposes of Section 16 of the Securities Exchange Act of 1934, as amended, or for any other purpose.
(5) On November 26, 2018, the Issuer and its general partner, Dominion Energy Midstream GP, LLC, entered into an Agreement and Plan of Merger (the "Merger Agreement") with Dominion Energy, Inc. and its indirect wholly owned subsidiary, Tredegar Street Merger Sub, LLC. Pursuant to the Merger Agreement, on January 28, 2019, Tredegar Street Merger Sub, LLC merged with and into the Issuer, with the Issuer surviving as an indirect, wholly owned subsidiary of Dominion Energy, Inc. (the "Merger").
(6) Under the terms of the Fourth Amended and Restated Agreement of Limited Partnership of the Issuer, the Reporting Persons elected to have their Preferred Units converted into Common Units immediately before the effective time of the Merger.
(7) Under the terms of the Merger Agreement, at the effective time of the Merger before markets opened on January 28, 2019, these Common Units were cancelled and converted into the right to receive 0.2492 shares of Dominion Energy, Inc. common stock for each Common Unit. The closing price of Dominion Energy, Inc. common stock on January 25, 2019 was $69.16.
 
Remarks:
Exhibit 99.1: Additional Signatures

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