Private company
Who owns Gulfstream Natural Gas System, L.L.C.
One company in the researched set discloses a stake in Gulfstream Natural Gas System, L.L.C., worth $185m between them. Gulfstream Natural Gas System, L.L.C. is private, so no 13F reports it: a 13F covers exchange listed positions only. These figures exist because each holder disclosed the stake in its own filings.
The disclosed stakes
One row per position. Where a holder reports the same company in two share classes, both rows are shown rather than summed, because the class is part of a position's identity.
Where each figure comes from
A private stake has no ownership form behind it, so the source is always the holder's own filing or disclosure. Anything modelled says so, with the arithmetic.
- The Williams Companies, Inc., as of 31 Dec 2025. Equity-method LLC interest, not denominated in shares, so shares is null. FY2025 10-K Note 8 (Investing Activities) equity-method investments table: 'Gulfstream 50% $185 $196' (2025 and 2024 carrying value in millions). The Q2 2026 10-Q reconfirms the 50 percent interest but does not restate an individual Q2 2026 carrying value for Gulfstream, so the FY2025 figure is used. source
What this page is not
It is not a complete register. It lists the holders who happen to be inside the researched set and disclosed the stake themselves. A private company can have many other shareholders, and nothing here rules them out: venture investors, founders and employees usually appear in no public filing at all. Percentages are of Gulfstream Natural Gas System, L.L.C. where a holder stated one, and are missing where no holder did.