Who owns Columbia Pipeline Group?
Columbia Pipeline Group is owned by TC Energy (Canada, TSX: TRP).[1]
TC Energy owns 60% of Columbia Pipeline Group rather than all of it.
Evidence: TC Energy Corporation Annual Report on Form 40-F filed 2026-02-13, SEC EDGAR, 13 February 2026. Verified from filings; last checked .
Key facts
- Current owner
- TC Energy Corporation (60% stake) verified
- Owner HQ
- 🇨🇦 Canada
- Origin
- 🇺🇸 United States
- Category
- Energy › Oil & gas › Pipelines & midstream
- Parent ticker
- TSX: TRP NYSE: TRP
- Last verified
- · 1 sources
About Columbia Pipeline Group
Columbia Pipeline Group holds the Columbia Gas and Columbia Gulf U.S. gas transmission systems. TC Energy's 2025 AIF says it sold a 40 percent equity interest in Columbia Gas and Columbia Gulf to Global Infrastructure Partners in October 2023 and that it beneficially owns 60 percent of the voting shares or units in the Columbia holding and operating companies.
Ownership timeline of Columbia Pipeline Group
Where Columbia Pipeline Group sits in TC Energy
Controlling ownership as of . Brands grouped under the entity that owns them; large groups are collapsed.
Open the full TC Energy ownership tree →
See the full TC Energy brand portfolio (2) →
Other brands owned by TC Energy
TC Energy controls 2 brands on Brandtree, 2 of them in energy.
Also in energy
Other brands in pipelines & midstream, and who owns them
The 35 brands in pipelines & midstream on Brandtree belong to 21 owners. The largest is Energy Transfer, with 4; TC Energy has 2.
| Brand | Owner | Owner based in |
|---|---|---|
| Dakota Access Pipeline | Energy Transfer | 🇺🇸 United States |
| Dixie Pipeline | Enterprise Products | 🇺🇸 United States |
| Basin Pipeline | Plains All American | 🇺🇸 United States |
| MountainWest | Williams | 🇺🇸 United States |
| Corpus Christi LNG | Cheniere | 🇺🇸 United States |
| Cenit | Ecopetrol | 🇨🇴 Colombia |
| Enbridge Mainline System | Enbridge | 🇨🇦 Canada |
| Aris Water Solutions | Western Midstream | 🇺🇸 United States |
About the owner: TC Energy
TC Energy is a publicly listed company headquartered in Canada. Brandtree records 2 brands under its control, and it is listed as TSX: TRP and NYSE: TRP.
TC Energy's 2025 Annual Information Form says its common shares are listed on the TSX and NYSE under TRP. It says TC Energy spun off its Liquids Pipelines business as South Bow Corporation on 1 October 2024 and now operates in Natural Gas Pipelines and Power and Energy Solutions, reported through Canadian, U.S. and Mexico natural gas pipelines segments plus Power and Energy Solutions.
🇺🇸 Columbia Pipeline Group and other American brands
Brandtree records a controlling owner for 2,399 brands that began in the United States. 461 of them (19%) are now controlled by a company headquartered in another country, Columbia Pipeline Group among them.
- AES Ohio — AES 🇺🇸
- Agway Energy Services — Suburban Propane 🇺🇸
- Alabama Power — Southern Company 🇺🇸
- AmeriGas — UGI 🇺🇸
- American Transmission Company — WEC Energy Group 🇺🇸
- Arch Resources — Core Natural Resources 🇺🇸
Frequently asked questions
Who is the parent company of Columbia Pipeline Group?
The parent company of Columbia Pipeline Group is TC Energy, a publicly listed company headquartered in Canada.
Is Columbia Pipeline Group American or Canadian?
Columbia Pipeline Group originated in the United States, but it is owned today by TC Energy, which is headquartered in Canada. So Columbia Pipeline Group is an American-origin brand under Canadian ownership.
Is Columbia Pipeline Group still owned by TC Energy?
Yes. As of 5 October 2026, Columbia Pipeline Group is still owned by TC Energy (60% stake). The ownership record was last checked against primary sources on that date.
Sources (1) & corrections
Last verified . Every ownership fact above is backed by one of these primary documents. Numbers in brackets in the text refer to this list.
- [1] TC Energy Corporation Annual Report on Form 40-F filed 2026-02-13 — SEC EDGAR, SEC filing, published 13 February 2026; retrieved 5 October 2026.
Report a correction Opens a pre-filled GitHub issue. See our corrections policy.