Is Phillips 66 an American company?
Yes — Phillips 66 is an American company.
Phillips 66 is incorporated in Delaware, United States and headquartered in Houston, Texas. Its legal-entity record reports no foreign parent — the company is independently American-owned.
The evidence
- Legal name
- Phillips 66
- Incorporated in
- Delaware, United States
- Registered office
- WILMINGTON, the United States
- Headquarters
- Houston, Texas, United States
- Ultimate owner
- None reported (independent)
- Stock listing
- NYSE: PSX on NYSE
- LEI
- 5493005JBO5YSIGK1814
- Founded
- 2012
Source: GLEIF, the global Legal Entity Identifier registry · checked Jul 26, 2026. A US headquarters or stock listing does not always mean US incorporation — this page reports what the legal-entity registry actually records.
Phillips 66: origin questions
Is Phillips 66 an American company?
Yes — Phillips 66 is an American company. Phillips 66 is incorporated in Delaware, United States and headquartered in Houston, Texas. Its legal-entity record reports no foreign parent — the company is independently American-owned.
Where is Phillips 66 incorporated?
Phillips 66 is legally incorporated in Delaware, United States, according to its GLEIF legal-entity record.
Who owns Phillips 66?
Phillips 66 reports no parent company in its legal-entity record — it is independently owned rather than a subsidiary.
Is Phillips 66 traded on a US stock exchange?
Yes — Phillips 66 trades under the ticker PSX on the NYSE.
See the full Phillips 66 company profile — financials, stock data and trust credentials — or browse the directory of American companies.