X0306 4 2019-03-08 0 0001619739 Hess Midstream Partners LP HESM 0001702288 Stein Jonathan C. 1501 MCKINNEY STREET HOUSTON TX 77010 0 1 0 0 Chief Financial Officer Common Units 2019-03-08 4 M 0 4063 0.00 A 13719 D Common Units 2019-03-11 4 S 0 1381 22.63 D 12338 D 2018 Phantom Units 0.00 2019-03-08 4 M 0 4063 0.00 D Common Units 4063 8126 D 2019 Phantom Units 2019-03-08 4 A 0 10984 0.00 A Common Units 10984 10984 D Common units acquired upon settlement of phantom units granted under the Partnership's 2017 Long Term Incentive Plan. Shares sold solely to satisfy tax withholding upon settlement of phantom units. The remaining 2018 phantom units vest ratably on March 8, 2020 and March 8, 2021 and have no expiration date. Each phantom unit is the economic equivalent of one Common Unit. The phantom units will vest in three equal annual installments beginning on March 8, 2020 and have no expiration date. Barry Schachter for Jonathan C. Stein 2019-03-12