Private company
Who owns MarEn Bakken Company LLC
One company in the researched set discloses a stake in MarEn Bakken Company LLC, worth $502m between them. MarEn Bakken 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.
MarEn Bakken Company LLC - Profile
- Type
- joint venture
- Based in
- United States
- Founded
- 2016
MarEn Bakken Company LLC is a holding vehicle formed in 2016 by Enbridge and Marathon Petroleum to acquire a 36.75 percent interest in the Bakken Pipeline system from Energy Transfer Partners and Sunoco Logistics for 2 billion dollars in cash. That system combines the Dakota Access Pipeline, which moves crude oil from the Bakken and Three Forks production areas of North Dakota across South Dakota and Iowa to Patoka, Illinois, with the Energy Transfer Crude Oil Pipeline, which carries the barrels on from Patoka to the Gulf Coast at Nederland, Texas. The company has no operations of its own: it exists solely to hold that minority pipeline stake, while Energy Transfer operates the lines and the remaining interests sit with Energy Transfer and Phillips 66.
Source
MarEn Bakken 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 Enbridge-Marathon venture buys interest in Bakken Pipeline (Oil & Gas Journal), Energy Transfer 8-K on the Bakken Pipeline interest sale (SEC) and Dakota Access Pipeline (Wikipedia). 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.
- Marathon Petroleum Corporation, as of 31 Dec 2025. The MarEn Bakken investment itself includes MPLX's further 9.19 percent indirect interest in the separate Dakota Access joint venture, which owns and operates the Dakota Access Pipeline and Energy Transfer Crude Oil Pipeline projects (the 'Bakken Pipeline system'); that nested 9.19 percent is not separately sized in the filing and is not recorded as its own row. 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 MarEn Bakken Company LLC where a holder stated one, and are missing where no holder did.