How do you pronounce "petroleum"?

In American English: /pəˈtroʊliːəm/ (puh-TROHL-ee-uhm). In British English: /pətɹˈəʊlɪəm/ (puhtr-OHL-i-uhm). In Canadian English: /pəˈtroʊliːəm/ (puh-TROHL-ee-uhm). In Australian English: /pətɹˈəʊliːəm/ (puhtr-OHL-ee-uhm).

Is "petroleum" pronounced differently in American and British English?

Yes. In American English it's pronounced /pəˈtroʊliːəm/ (puh-TROHL-ee-uhm), while in British English it's /pətɹˈəʊlɪəm/ (puhtr-OHL-i-uhm).

How to Pronounce "petroleum"

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petroleum

regional

/pəˈtroʊliːəm/

puh-TROHL-ee-uhm

Syllable Breakdown

pəpe·troʊltro·iːle·əmum

Source

90%confidence📘 CMU Pronouncing Dictionary v0.7b

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Last updated: 2026-02-14