What departments does ONEOK have?

ONEOK has employees across 6 departments including Entrepreneurship, Information Technology, Operations, Business, Engineering.

What is the largest department at ONEOK?

The largest department at ONEOK is Entrepreneurship with 9 employees.

Where are ONEOK employees located globally?

ONEOK has employees across 7 continents and 39 countries including Uganda, Morocco, Egypt, Nigeria, India.

How has ONEOK's team size changed over time?

ONEOK's team has decreased from approximately 4K to 3.6K employees based on available data.

ONEOK Employee Directory

Oil and GasOklahoma, United States5001-10000 Employees

ONEOK is a public oil and gas company headquartered at 100 West 5th Street, Tulsa, Oklahoma. It operates as a midstream energy infrastructure operator, providing gathering, processing, fractionation, transportation, storage, and marine export services. The company maintains an approximately 60,000-mile pipeline network that transports natural gas, natural gas liquids, refined products, and crude oil to meet domestic and international energy demand. ONEOK is described as one of the largest diversified energy infrastructure companies in North America. The company employs between 5,001 and 10,000 people and trades on the NYSE under ticker OKE.

ONEOK Global Highlights

North America
5K

United States Of America
4.9K
Canada
4
Mexico
1
Barbados
1

Asia
51

India
20
Indonesia
9
Viet Nam
6
Malaysia
3
Saudi Arabia
3
Philippines
2
Pakistan
2
Turkey
2
Afghanistan
1
Singapore
1
Kazakhstan
1
Sri Lanka
1

Europe
20

United Kingdom Of Great Britain And Northern Ireland
4
Sweden
3
Poland
3
France
2
Italy
1
Norway
1
Germany
1
Netherlands
1
Croatia
1
Armenia
1
Spain
1
Belgium
1

Africa
6

Morocco
3
Uganda
1
Egypt
1
Nigeria
1

South America
5

Brazil
1
Colombia
1
Ecuador
1
Argentina
1
Venezuela
1

Oceania
1

Australia
1

ONEOK's Leadership

C. V.
Chief Executive Officer
Mobile Phone
Email
C. A.
Chief Executive Officer And Chief Operating Officer
Mobile Phone
Email
D. H.
Chief Executive Officer
Mobile Phone
Email
D. S.
Chief Executive Officer
Mobile Phone
Email
L. C.
Chief Executive Officer
Mobile Phone
Email
T. S.
Chief Executive Officer
Mobile Phone
Email
T. A.
Chief Executive Officer
Mobile Phone
Email
M. I.
Chief Executive Officer
Mobile Phone
Email

ONEOK Employee Metrics

100%

50%

0%

2026

2025

Analytics
Engineering
Operations
Information Technology
Accounting
Other
Program & Project Management
Civil Engineering & Construction
Administrative

Contact profiles from ONEOK

Name

Title

Contact

Location

Last Update

A. S.
Employee Relations Partner
Mobile Phone
Email
Jun 29, 2026
A. B.
Founder And President
Mobile Phone
Email
Oct 17, 2024
A. S.
Owner
Mobile Phone
Email
Oct 18, 2024
B. E.
Owner
Mobile Phone
Email
Oct 22, 2024
B. T.
Owner
Mobile Phone
Email
Oct 16, 2024
B. S.
Chief Information Officer
Mobile Phone
Email
Oct 24, 2024
B. M.
Partner
Mobile Phone
Email
Oct 23, 2024
B. B.
Partner
Mobile Phone
Email
Oct 16, 2024
B. R.
Partner
Mobile Phone
Email
Oct 17, 2024
C. B.
Chairman
Mobile Phone
Email
Oct 16, 2024

Frequently Asked Questions

What is ONEOK known for?

ONEOK was founded in 1906 and operates in the Oil and Gas industry. You can contact ONEOK's main corporate office by phone at

+1-281-876-****

. Explore ONEOK's company overview page for more information.

What is ONEOK's most common email format?

ONEOK employees' email format typically follows the pattern of First.Last@oneok.com. Trying to find reliable and up-to-date employee contact data? Find more ONEOK email formats with LeadIQ.

How many employees does ONEOK have currently?

ONEOK has approximately 6.5K employees as of August 2026. These team members are located across 6 continents, including North America, Asia and Europe.

Who are ONEOK's key employees and leadership?

As of August 2026, ONEOK's key employees include:

Chief Executive Officer: C. V.
Chief Executive Officer And Chief Operating Officer: C. A.
Chief Executive Officer: D. H.
Chief Executive Officer: D. S.
Chief Executive Officer: L. C.

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ONEOK Employee Directory

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