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Oneok, Inc. (OKE) is an energy company in the additional transport and holding operations industry, based in Tulsa, United States, with about 6,326 full-time employees.
It reported revenue of $33.63 billion for fiscal year 2025, and net income of $3.39 billion. In Q2 2026 (the quarter ended June 30, 2026) revenue was $12.05 billion. Its largest business segment, Natural Gas Liquids, brought in 41% of segment revenue in fiscal year 2025. Its market capitalization was $56.61 billion as of October 9, 2026.
Figures from company filings and market data; latest fiscal year ended December 31, 2025; market data as of October 9, 2026.
ONEOK, Inc. operates as a midstream service provider of gathering, processing, fractionation, transportation, storage, and marine export services in the United States. It operates in four segments: Natural Gas Gathering and Processing; Natural Gas Liquids; Natural Gas Pipelines; and Refined Products and Crude.
Oneok reported $33.63 billion in revenue for fiscal year 2025. In Q2 2026 revenue was $12.05 billion.
Natural Gas Liquids, with $16.01 billion or 41% of segment revenue in fiscal year 2025. Next: Refined Products and Crude (34%) and Natural Gas Gathering and Processing (20%).
$56.61 billion as of October 9, 2026.
Listed companies of a similar size in the same industry (additional transport and holding operations) include Energy Transfer LP (ET), Cheniere Energy, Inc. (LNG), Mplx LP (MPLX), Venture Global, Inc. (VG).