X0306 4 2019-12-16 0 0001789832 Hess Midstream LP HESM 0000004447 HESS CORP 1185 AVENUE OF THE AMERICAS NEW YORK NY 10036 1 0 1 0 0001702361 Hess Investments North Dakota LLC 1185 AVENUE OF THE AMERICAS NEW YORK NY 10036 1 0 1 0 Class A Shares 2019-12-16 4 A 0 898000 A 898000 I See Notes Class B Shares 2019-12-16 4 A 0 266416928 A 266416928 I See Notes Opco Class B Units 2019-12-16 4 A 0 133208464 A Class A Shares 133208464 133208464 I See Notes Pursuant to the Agreement and Plan of Merger dated October 3, 2019 (the "Merger Agreement"), each Common Unit of Hess Midstream Partners LP ("Old HESM") issued and outstanding prior to the effective time of the transactions contemplated by the Merger Agreement (the "Effective Time") (other than any Old HESM Common Units held by the Existing Sponsors or the HIP Entities (as defined in the Merger Agreement) as of immediately prior to the Effective Time), was automatically converted into the right to receive one validly issued, fully paid and non-assessable Class A Share of Hess Midstream LP ("New HESM"). Represents securities held by Hess Midstream GP LP. Hess Infrastructure Partners GP LLC is the sole member of Hess Midstream GP LLC which is the general partner of Hess Midstream GP LP. Hess Infrastructure Partners GP LLC is a 50/50 joint venture between Hess Investments North Dakota LLC and GIP II Blue Holding Partnership, L.P. As such, each of the foregoing entities may be deemed to beneficially own the securities held of record by Hess Midstream GP LP. Each such entity disclaims beneficial ownership of such securities except to the extent of their pecuniary interest therein. Hess Investments North Dakota LLC is a wholly owned subsidiary of Hess Corporation, a publicly traded company listed on the New York Stock Exchange. As a result, Hess Corporation may be deemed to beneficially own the securities held of record by Hess Investments North Dakota LLC and Hess Midstream GP LP. Hess Corporation disclaims beneficial ownership of such securities except to the extent of its pecuniary interest therein. The Opco Class B Units may be converted at any time into Class A Shares on a one to one basis and have no expiration date. Represents securities held by Hess Investments North Dakota LLC Hess Corporation By: Barry Schachter 2019-12-17 Hess Investments North Dakota LLC By: Barry Schachter 2019-12-17