X0306 4 2019-12-16 0 0001789832 Hess Midstream LP HESM 0001453499 Hill Gregory P. 1501 MCKINNEY STREET HOUSTON TX 77010 1 0 0 0 Class A Shares 2019-12-16 4 A 0 4350 A 4350 D 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"). Barry Schachter for Gregory P. Hill 2019-12-17