| Name | Relationship | Address | Signature | Signature date | CIK |
|---|---|---|---|---|---|
| CHEVRON CORP | Director, 10%+ Owner | 1400 SMITH STREET, HOUSTON | Chevron Corporation By: /s/ Christine L. Cavallo, Assistant Secretary | 2025-08-08 | 0000093410 |
| HESS CORP | Director, 10%+ Owner | 1185 AVENUE OF THE AMERICAS, NEW YORK | Hess Corporation By: /s/ Kari H. Endries, Assistant Secretary | 2025-08-08 | 0000004447 |
| Hess Investments North Dakota LLC | Director, 10%+ Owner | 1185 AVENUE OF THE AMERICAS, NEW YORK | Hess Investments North Dakota LLC By: /s/ Kari H. Endries, Assistant Secretary | 2025-08-08 | 0001702361 |
| Type | Sym | Class | Transaction | Value $ | Shares | Change % | * Price $ | Shares After | Date | Ownership | Footnotes |
|---|---|---|---|---|---|---|---|---|---|---|---|
| transaction | HESM | Class B Shares | Other | $0 | -696K | -0.88% | $0.00 | 78.3M | Aug 8, 2025 | See footnote | F1, F2, F3 |
| holding | HESM | Class A Shares | 449K | Aug 8, 2025 | See footnote | F3 |
| Type | Sym | Class | Transaction | Value $ | Shares | Change % | * Price $ | Shares After | Date | Underlying Class | Amount | Exercise Price | Ownership | Footnotes |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| transaction | HESM | Opco Class B Units | Disposed to Issuer | -$30M | -696K | -0.88% | $43.11 | 78.3M | Aug 8, 2025 | Class A Shares | 696K | See footnote | F3, F4 |
| Id | Content |
|---|---|
| F1 | Reflects the cancellation for no consideration of 695,894 Class B Shares in connection with Hess Midstream Operations LP's repurchase of 695,894 Opco Class B Units from Hess Investments North Dakota LLC ("HINDL") and the subsequent cancellation of such Opco Class B Units. |
| F2 | Reflects holdings following a transaction exempt from reporting pursuant to Rule 16a-13. |
| F3 | Represents securities held by HINDL. HINDL is an indirect, wholly owned subsidiary of Hess Corporation ("Hess"), which is a direct, wholly owned subsidiary of Chevron Corporation ("Chevron"). As a result, Chevron and Hess may be deemed to beneficially own the securities held of record by HINDL. Chevron and Hess disclaim beneficial ownership of such securities except to the extent of their pecuniary interest therein. |
| F4 | 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. |