Hess Midstream LP

During the three months ended March 31, 2026, none of our directors or officers (as defined in Rule 16a-1(f) under the Exchange Act)adopted orterminated a “Rule 10b5-1 trading arrangement” or “non-Rule 10b5-1 trading arrangement,” as each term is defined in Item 408(a) of Regulation S-K.

On May 5, 2026, our general partner, Hess Midstream GP LLC, Hess, Hess Trading Corporation (“HTC”) and Chevron entered into a First Amendment (the “Amendment”) to the Amended and Restated Employee Secondment Agreement, dated as of December 16, 2019 (the “employee secondment agreement”), pursuant to which Hess and HTC agreed to second certain personnel to our general partner in support of our operations. Pursuant to the Amendment, effective as of January 1, 2026, Hess and HTC assigned, and Chevron assumed, all of their respective rights and obligations under the employee secondment agreement, including the obligation to second personnel to our general partner. The Amendment also amends certain references and other terms of the employee secondment agreement to reflect the assignment. All other terms of the employee secondment agreement remain in full force and effect. The foregoing description of the Amendment does not purport to be complete and is qualified in its entirety by reference to the full text of the Amendment, a copy of which is filed as Exhibit 10.2 to this Quarterly Report on Form 10-Q and is incorporated herein by reference.

PART II – OTHER INFORMATION (CONT’D)