UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

SCHEDULE 13D

Under the Securities Exchange Act of 1934

(Amendment No. 7)*

Hess Midstream LP

(Name of Issuer)

Class A Shares

(Title of Class of Securities)

428103105

(CUSIP Number)

Timothy B. Goodell

Hess Corporation

1185 Avenue of the Americas

New York, NY 10036

(212) 997-8500

(Name, Address and Telephone Number of Person Authorized to Receive Notices and Communications)

June 26, 2023

(Date of Event Which Requires Filing of this Statement)

If the filing person has previously filed a statement on Schedule 13G to report the acquisition that is the subject of this Schedule 13D, and is filing this schedule because of Rule 13d-1(e), Rule 13d-1(f) or Rule 13d-1(g), check the following box.  ☐

Note: Schedules filed in paper format shall include a signed original and five copies of the schedule, including all exhibits. See Rule 13d-7(b) for other parties to whom copies are to be sent.

The information required on the remainder of this cover page shall not be deemed to be “filed” for the purpose of Section 18 of the Securities Exchange Act of 1934 (“Act”) or otherwise subject to the liabilities of that section of the Act but shall be subject to all other provisions of the Act (however, see the Notes).

Explanatory Note

This Amendment No. 7 to Schedule 13D amends and supplements the statement on Schedule 13D originally filed with the United States Securities and Exchange Commission on December 17, 2019 (as amended, the “Statement”), relating to the Class A Shares representing limited partner interests (the “Class A Shares”) of Hess Midstream LP, a Delaware limited partnership (the “Issuer”). Capitalized terms used herein without definition shall have the meaning set forth in the Statement.

Item 2 is hereby amended to replace Schedule A in its entirety with Schedule A filed herewith.

Item 4 of the Statement is hereby amended and supplemented as follows:

Fourth Repurchase Agreement

On June 29, 2023, pursuant to a Unit Repurchase Agreement, dated June 26, 2023 (the “Fourth Repurchase Agreement”), by and among the Issuer, HESM Opco, Hess Investments and Blue Holding, HESM Opco purchased from each of Hess Investments and Blue Holding 1,675,042 Opco Class B Units (the “Repurchased Units”) for an aggregate purchase price of approximately $100 million, or $29.85 per unit (the “Fourth Repurchase Transaction”). Pursuant to the terms of the Fourth Repurchase Agreement, immediately following the closing of the Fourth Repurchase Transaction, HESM Opco cancelled the Repurchased Units, and the Issuer cancelled, for no consideration, an equal number of Class B Shares held by New HESM GP LP in accordance with Section 5.5(e) of the Amended Opco Partnership Agreement.

The above description of the Fourth Repurchase Agreement does not purport to be complete and is qualified in its entirety by reference to the full text of such agreement, which is filed as an exhibit hereto and incorporated herein by reference.

Item 5 of the Statement is hereby amended and restated in its entirety as follows:

(a) – (b)

The following sets forth the aggregate number of Class A Shares and percentage of Class A Shares outstanding beneficially owned by each of the Reporting Persons, as well as the number of Class A Shares as to which each Reporting Person has the sole power to vote or to direct the vote, shared power to vote or to direct the vote, sole power to dispose or to direct the disposition of, or shared power to dispose or to direct the disposition of, as of the date hereof, based on 56,858,493 Class A Shares outstanding following the consummation of the Fourth Repurchase Transaction and the cancellation of the Repurchased Units and an equal number of Class B Shares:

New HESM GP LP is the record holder of 898,000 Class A Shares. HIP GP LLC is the sole member of New HESM GP LLC, which is the general partner of New HESM GP LP. HIP GP LLC is a 50/50 joint venture between Hess Investments and Blue Holding. As such, each of the foregoing entities may be deemed to beneficially own the securities held of record by New HESM GP LP.

In addition, Hess Investments is the record holder of 88,056,634 Opco Class B Units, which may be redeemed for Class A Shares on a one-for-one basis at the option of the holder.

Hess Investments is an indirect, wholly owned subsidiary of Hess Corporation. As a result, Hess Corporation may be deemed to share beneficial ownership of the securities held of record by Hess Investments and New HESM GP LP.

Item 6 of the Statement is hereby amended and supplemented as follows:

Item 4 above summarizes certain provisions of the Fourth Repurchase Agreement and is incorporated herein by reference. A copy of this agreement is attached as an exhibit hereto and incorporated herein by reference.

Except as set forth herein, none of the Reporting Persons or Related Persons has any contracts, arrangements, understandings or relationships (legal or otherwise) with any person with respect to any securities of the Issuer, including, but not limited to, any contracts, arrangements, understandings or relationships concerning the transfer or voting of such securities, finder’s fees, joint ventures, loan or option arrangements, puts or calls, guarantees of profits, division of profits or losses, or the giving or withholding of proxies.

Item 7 of the Statement is hereby amended and supplemented as follows:

SIGNATURES

After reasonable inquiry and to the best of my knowledge and belief, I certify that the information set forth in this statement is true, complete and correct.

Date: June 30, 2023

Schedule A

The name, present principal occupation or employment and citizenship of each of the executive officers and directors of Hess Corporation, Hess Investments North Dakota LLC, Hess Infrastructure Partners GP LLC and Hess Midstream GP LLC are set forth below. Unless otherwise noted, the address of each Hess Corporation related person is 1185 Avenue of the Americas, New York, NY 10036 and the address of each other related person is 1501 McKinney Street, Houston TX 77010.

Hess Corporation

Hess Investments North Dakota LLC

Hess Infrastructure Partners GP LLC

Hess Midstream GP LLC