SCHEDULE 13G/A 0001280965-24-000002 0001280965 XXXXXXXX LIVE 2 Class A Shares Representing Limited Partner Interests 09/30/2025 0001789832 Hess Midstream LP 42809H107 1501 MCKINNEY STREET 1501 MCKINNEY STREET HOUSTON TX 77010 Rule 13d-1(b) TORTOISE CAPITAL ADVISORS, L.L.C. a DE 0.00 4272215.00 0.00 4827169.00 4827169.00 3.7 IA Item 4: Ownership. TCA acts as an investment adviser to certain investment companies registered under the Investment Company Act of 1940. TCA, by virtue of investment advisory agreements with these investment companies, has all investment and voting power over securities owned of record by these investment companies. However, despite their delegation of investment and voting power to TCA, these investment companies may be deemed to be the beneficial owners under Rule 13d-3 of the Act, of the securities they own of record because they have the right to acquire investment and voting power through termination of their investment advisory agreement with TCA. Thus, TCA has reported that it shares voting power and dispositive power over the securities owned of record by these investment companies. TCA also acts as an investment adviser to certain managed accounts. Under contractual agreements with these managed account clients, TCA, with respect to the securities held in these client accounts, has investment and voting power with respect to certain of these client accounts, and has investment power but no voting power with respect to certain other of these client accounts. TCA has reported that it shares voting and/or investment power over the securities held by these client managed accounts despite a delegation of voting and/or investment power to TCA because the clients have the right to acquire investment and voting power through termination of their agreements with TCA. TCA may be deemed the beneficial owner of the securities covered by this statement under Rule 13d-3 of the Act. Hess Midstream LP 1501 MCKINNEY STREET, 1501 MCKINNEY STREET, HOUSTON, TEXAS, 77010. Tortoise Capital Advisors, L.L.C. The principal business address of TCA is 5901 College Boulevard, Suite 400, Overland Park, Kansas 66211 TCA is a Delaware limited liability company N IA 4,827,169 3.68 0 4,272,215 0 4,272,215 Y N The investment companies and the managed accounts discussed in above have the right to receive all dividends from, and the proceeds from the sale securities held in their respective accounts. The interest of any one such person does not exceed 5% of the class of securities. Y Y Y N By signing below I certify that, to the best of my knowledge and belief, the securities referred to above were acquired and are held in the ordinary course of business and were not acquired and are not held for the purpose of or with the effect of changing or influencing the control of the issuer of the securities and were not acquired and are not held in connection with or as a participant in any transaction having that purpose or effect, other than activities solely in connection with a nomination under § 240.14a-11. TORTOISE CAPITAL ADVISORS, L.L.C. Jeff Kruske 11/14/2025