ONEOK

ONEOK

Oil, Gas and Consumable Fuels
Oneok is a diversified midstream service provider specializing in natural gas gathering, processing, storage, and transportation, as well as natural gas liquids transportation and fractionation. It also operates in the refined product and crude oil segment, connecting producers, refiners, and consumers. Operations are in the midcontinent, Permian, and Rocky Mountain regions.

$49.8B

Market Cap • 1/30/2026

1906

(120 years)

Founded

1954

(72 years ago)

IPO

NYSE

Listing Exchange

Flag of United States

United States

Country

S&P500 Participant

Index Composite • 2026