Private company
Who owns Overland Pass Pipeline Company LLC
2 companies in the researched set disclose a stake in Overland Pass Pipeline Company LLC, worth $767m between them. Overland Pass Pipeline Company LLC 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.
Also filed as Overland Pass Pipeline Company, LLC. Merged here because they are the same company.
Overland Pass Pipeline Company LLC - Profile
- Type
- joint venture
- Based in
- United States
- Founded
- 2006
Overland Pass Pipeline Company LLC runs a natural gas liquids pipeline system in the Rocky Mountain region of the United States. The mainline covers roughly 760 miles from Opal, Wyoming to the Mid-Continent NGL market hub at Conway, Kansas, and is fed by a 150 mile lateral out of the Piceance Basin and a 125 mile lateral out of the Denver-Julesburg Basin, crossing 26 counties in Wyoming, Colorado and Kansas. The system was formed as a 50-50 venture between ONEOK Partners and Williams in May 2006, entered service in November 2008 and is designed to move about 245,000 barrels per day of unfractionated NGLs to downstream fractionation and market centers. Williams has been the operator of record since 1 April 2011.
Source
Overland Pass Pipeline Company LLC files nothing with the SEC, so none of this comes from a filer record. The description was written for this site in August 2026 from Williams: Overland Pass Pipeline, ONEOK Partners completes Overland Pass Pipeline transaction with Williams Partners and Global Energy Monitor: Overland Pass NGL Pipeline. The ownership figures below come from the holders' filings instead, and are sourced row by row.
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.
- ONEOK, Inc., as of 31 Dec 2025. Equity-method LLC interest, not denominated in shares, so shares is null. FY2025 10-K Note N investments table: 'Overland Pass 50% $391 $400' (2025 and 2024 carrying value in millions). Q2 2026 10-Q Note H confirms the 50% owned joint venture with equity in net earnings of $24 million (Q2 2026) and $48 million (six months) but no restated Q2 2026 carrying value, so the FY2025 figure is used. source
- 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 equity-method investments table: 'OPPL 50% $376 $385' (2025 and 2024 carrying value in millions). Confirmed as a 50 percent equity-method investment (West / Gas & NGL Marketing Services segments) in the Q2 2026 10-Q with no restated Q2 2026 carrying value given. 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 Overland Pass Pipeline Company LLC where a holder stated one, and are missing where no holder did.