Private company
Who owns Blackcomb Joint Venture (Blackcomb and Traverse pipelines)
One company in the researched set discloses a stake in Blackcomb Joint Venture (Blackcomb and Traverse pipelines), worth $140m between them. Blackcomb Joint Venture (Blackcomb and Traverse pipelines) 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.
Blackcomb Joint Venture (Blackcomb and Traverse pipelines) - Profile
- Type
- joint venture
- Based in
- United States
- Founded
- 2024
The Blackcomb Joint Venture builds and will operate two large natural gas transmission pipelines in Texas. The Blackcomb Pipeline runs roughly 365 miles of 42 inch pipe from the Permian Basin in West Texas to the Agua Dulce hub in South Texas, designed to move up to 2.5 billion cubic feet a day of gas that the basin cannot otherwise get out, with an in service target in the second half of 2026. The Traverse Pipeline, which the same venture owns outright after a final investment decision in April 2025, adds about 160 miles of 36 inch bi directional pipe between Agua Dulce and the Katy area near Houston with a design capacity of 1.75 billion cubic feet a day, due in service in 2027. The venture was formed in July 2024 by Targa Resources, MPLX and WPC, itself a partnership of WhiteWater, MPLX and Enbridge that holds long haul Permian gas pipeline and storage assets. Devon Energy, Diamondback Energy, Marathon Petroleum and Targa are among the foundation shippers.
Source
Blackcomb Joint Venture (Blackcomb and Traverse pipelines) 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 Blackcomb Pipeline Reaches Final Investment Decision (PR Newswire), Traverse Pipeline Reaches Final Investment Decision (PR Newswire) and Blackcomb Pipeline, a 2.5 Bcf/d Permian to South Texas connector (Energies Media). 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.
- Targa Resources Corp., as of 30 Jun 2026. Equity-method investment, Logistics and Transportation segment; non-operated. Targa entered the Blackcomb Joint Venture in July 2024 to construct the Blackcomb natural gas pipeline (Permian Basin to Agua Dulce, TX, ~365 miles, up to 2.5 Bcf/d, expected in service Q4 2026); the joint venture separately reached FID on the Traverse pipeline in April 2025 (Katy area, up to 2.5 Bcf/d, expected 2027). Both pipelines are operated by an affiliate of WhiteWater, not Targa. Carrying value was $131.9 million at 31 Dec 2025 and $139.8 million at 30 Jun 2026 per the Q2 2026 10-Q roll-forward (equity earnings $4.2m, contributions $3.7m over six months, including capitalized interest). Book carrying value, not an independently sourced fair value of the whole entity or of WPC. sourcesource 2
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 Blackcomb Joint Venture (Blackcomb and Traverse pipelines) where a holder stated one, and are missing where no holder did.