ONEOK headquarters details
- Street address
- 100 West 5th St.
- City
- Tulsa
- State / region
- Oklahoma
- ZIP / postal code
- 74103-4298
- Country
- United States
- Phone
- +1 918 588 7000
- Founded
- 1906
- Website
- oneok.com
- Stock
- NYSE: OKE
- linkedin.com/company/oneok
Location map
Open in Google MapsAll ONEOK office locations
| City | State / region | Country | Type |
|---|---|---|---|
| Tulsa HQ | Oklahoma | United States | Headquarters |
Showing the headquarters of 13 recorded locations. See every location in GraphIQ →
About ONEOK
ONEOK (NYSE: OKE) is headquartered in Tulsa, Oklahoma, United States. Founded in 1906, the company has 13 recorded locations and employs approximately 6,326 people worldwide.
Where is ONEOK's main office?
ONEOK's main headquarters office is located at 100 West 5th St., Tulsa, Oklahoma 74103-4298, United States. This is the company's primary corporate address.
ONEOK regional offices
Beyond its headquarters in Tulsa, ONEOK has recorded locations in United States.
ONEOK contact information
The main switchboard for ONEOK headquarters can be reached at +1 918 588 7000. Official website: oneok.com.
What does ONEOK do?
ONEOK, Inc. is a diversified energy company. The Company is involved in the natural gas and natural gas liquids business across the United States.
ONEOK competitors & similar companies
Frequently asked questions
Where is ONEOK headquarters?
ONEOK's headquarters is located at 100 West 5th St., Tulsa, Oklahoma 74103-4298, United States.
How many offices does ONEOK have?
GraphIQ records 13 locations for ONEOK, as of October 2026.
What is ONEOK's corporate address?
The corporate headquarters address is 100 West 5th St., Tulsa, Oklahoma 74103-4298, United States.
When was ONEOK founded?
ONEOK was founded in 1906 and employs approximately 6,326 people.
What is ONEOK's phone number?
The main phone number for ONEOK headquarters is +1 918 588 7000.
How many employees does ONEOK have?
ONEOK has approximately 6,326 employees (GraphIQ estimate, 2026).
Is ONEOK a public company?
Yes. ONEOK is publicly traded on NYSE under the ticker OKE.