Private company
Who owns Mountain Valley Pipeline, LLC - Series B (MVP Southgate)
One company in the researched set discloses a stake in Mountain Valley Pipeline, LLC - Series B (MVP Southgate), worth $114m between them. Mountain Valley Pipeline, LLC - Series B (MVP Southgate) 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.
Mountain Valley Pipeline, LLC - Series B (MVP Southgate) - Profile
- Type
- joint venture
- Based in
- United States
Series B of Mountain Valley Pipeline, LLC is the series of the Delaware series limited liability company formed to build and own MVP Southgate, a proposed 31 mile, 30 inch diameter interstate natural gas pipeline extending from the terminus of the MVP Mainline in Pittsylvania County, Virginia to new delivery points in Rockingham County, North Carolina. As amended it carries a projected capacity of about 550 million cubic feet a day and is underpinned by precedent agreements signed in December 2023 with Public Service Company of North Carolina and Duke Energy Carolinas, with the route passing part of the Southern Virginia Mega Site at Berry Hill. The project is regulated by the Federal Energy Regulatory Commission, is estimated to cost roughly 370 to 430 million dollars and is expected in service by mid 2028. EQT operates the venture, whose members also include affiliates of NextEra Energy, AltaGas and RGC Resources.
Source
Mountain Valley Pipeline, LLC - Series B (MVP Southgate) 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 EQT Corporation Form 10-K for 2025, MVP Southgate project overview and FERC docket page, Mountain Valley Pipeline Southgate Amendment Project. 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.
- EQT Corporation, as of 30 Jun 2026. 47.2% ownership interest, unchanged between 31 Dec 2025 and 30 Jun 2026. Carrying value $114,086 thousand as of 30 Jun 2026 versus $42,420 thousand at 31 Dec 2025 (EQT issued a new $38.2 million performance guarantee in favor of MVP B in April 2026 under the most recently approved construction budget, part of why carrying value rose). Series B (MVP B) owns the MVP Southgate project, an approximately 31-mile planned interstate pipeline extension from the terminus of MVP Mainline in Pittsylvania County, Virginia. Members as of 30 Jun 2026 are EQT and affiliates of NextEra, AltaGas and RGC. pct_of_target recorded as 47.2, a percentage. 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 Mountain Valley Pipeline, LLC - Series B (MVP Southgate) where a holder stated one, and are missing where no holder did.