History
Hess Midstream bought out its parent-linked joint venture in 2019, then spent years buying back sponsor units with debt, shifting ownership toward the public.
2019: Buying the assets outright
Hess Midstream began as Hess Midstream Partners LP, a listed partnership that held only an economic interest in the pipelines and plants that carried its business. The real assets sat inside Hess Infrastructure Partners, a 50/50 joint venture between Hess Corporation and Global Infrastructure Partners (GIP). The sponsors also collected incentive distribution rights, extra payments that grew as the company's payouts grew.
On 4 October 2019 the company announced it would buy the joint venture, scrap those rights and convert into a new partnership, Hess Midstream LP, taxed as a corporation. It described a pro forma enterprise of $7.25 billion. Each public unit became one Class A share, and shareholders also gave up their right to a jury trial, including for federal securities claims. The deal closed in December 2019. The price was about $1.15 billion of assumed debt, roughly 230 million new units and about $550 million in cash. For the first time, the public company owned 100% of its underlying assets.
2021-2026: Locking in Hess and recycling ownership
In January 2021 Hess Midstream used its option to extend its core agreements with Hess Corporation by 10 years, through January 2034, well past the original 2024 expiry. These agreements set minimum volumes, so they underpin its revenue.
In July 2021 it agreed to buy back $750 million of units from Hess and GIP. This was the first of a repeating pattern: new debt paid for repurchases of sponsor units, while the sponsors sold shares to the public. Shares on issue rose from about 18.0 million at the end of 2020 to about 129.4 million at the end of 2025. The record does not explain every step of that rise, but it fits ownership shifting from sponsors into public hands.
The sponsors themselves changed hands. In January 2025 a roughly $100 million repurchase revealed that BlackRock's purchase of GIP had closed. Ownership then stood at about 47.9% public, 14.3% GIP/BlackRock and 37.8% Hess Corporation. In August 2025 a buyback of about $30 million, made only from Hess's sponsor entity HINDL, showed that entity was now a wholly owned subsidiary of Chevron Corporation. As of March 2026, the latest repurchase was about $18 million, and the share count stood at about 128.4 million.
Written from the 8 story beats below (2019 to 6 Aug 2025), which come from the company's own announcements and filings.