ONEOK, Inc. is a major player in the United States natural gas industry, offering a broad range of midstream services including gathering, processing, fractionation, transportation, storage, and marine export. Headquartered in Tulsa, Oklahoma, the company operates through four main segments: Natural Gas Gathering and Processing; Natural Gas Liquids (NGLs); Natural Gas Pipelines; and Refined Products and Crude.
The company owns extensive infrastructure across key U.S. regions such as the Mid-Continent, Permian Basin, North Texas, Gulf Coast, and Rocky Mountain areas. These assets include natural gas gathering pipelines and processing plants that support producers of natural gas liquids. In addition to its gathering operations, ONEOK manages NGL gathering and distribution pipelines along with fractionation facilities and storage terminals.
ONEOK also plays a significant role in transporting and storing refined products like gasoline, diesel fuel, aviation fuel, kerosene, and heating oil. Its regulated interstate and intrastate natural gas transmission pipelines and storage facilities help ensure reliable supply and distribution throughout the country. Beyond energy infrastructure, the company maintains a parking garage in downtown Tulsa and leases various properties and equipment essential for pipeline operations.
Serving a wide array of customers, ONEOK supports integrated and independent exploration and production companies, utilities, industrial businesses, municipalities, petrochemical firms, refineries, exporters, and distributors of propane and natural gasoline. This diverse customer base reflects the company’s comprehensive approach to the midstream energy sector.
Founded in 1906, ONEOK has grown into a significant employer with over 6,300 full-time staff as of December 31. The company’s long history and wide-ranging services position it strongly within the oil and gas midstream industry. As demand for natural gas continues to evolve amid energy transitions, ONEOK’s infrastructure and operational expertise remain critical to maintaining supply chains across multiple regions.
With ongoing investments in pipeline capacity and processing technology, ONEOK is well-equipped to meet future challenges in the natural gas market. Its integrated operations enable it to adapt to changing market conditions while supporting producers and end-users alike. The company’s role in commodity-related activities such as liquids blending and marketing further diversifies its business model within the energy sector.
Overall, ONEOK’s extensive asset portfolio and customer network underscore its importance in the U.S. natural gas midstream industry. Its continued focus on service reliability and infrastructure development will be key as the sector navigates shifting energy demands and regulatory environments.
