What Does ONEOK Do?

Total employees6163
HeadquartersTulsa
Founded1906

ONEOK, Inc. (NYSE: OKE) is a leading midstream service provider and owner of one of the nation's premier natural gas liquids (NGL) systems, connecting NGL supply in the Rocky Mountain, Mid-Continent and Permian regions with key market centers and an extensive network of natural gas gathering, processing, storage and transportation assets. Following its acquisition of Magellan Midstream Partners in 2023, ONEOK became one of the largest midstream energy companies in the U.S., with a more diversified portfolio including refined products and crude oil transportation. The company strives to provide safe, reliable, and environmentally responsible energy infrastructure solutions that benefit its customers, employees, communities, and investors.

Where Is ONEOK's Headquarters?

HQ Function

The headquarters serves as the central hub for ONEOK's corporate management, strategic planning, financial operations, investor relations, legal, human resources, and administrative functions overseeing its extensive midstream operations across the United States.

Notable Features:

ONEOK Plaza is a prominent multi-story office building in downtown Tulsa, offering modern office spaces, conference facilities, and amenities designed to support a productive and collaborative workforce. It stands as a recognizable part of the Tulsa skyline.

Work Culture:

ONEOK aims to foster a work culture centered on safety, integrity, inclusion, and excellence. Employees at the headquarters experience a professional environment focused on collaboration, innovation in the energy sector, strategic growth, and active community engagement.

HQ Significance:

The Tulsa headquarters is highly significant as it centralizes the leadership and decision-making for a company operating critical energy infrastructure across multiple states. It plays a key role in navigating the complexities of the U.S. energy market and executing the company's long-term strategy.

Values Reflected in HQ: The headquarters' operations and its role in the community aim to reflect ONEOK's core values, including a commitment to safety, ethical conduct, environmental stewardship, operational excellence, and delivering value to stakeholders.

Location:

ONEOK's physical assets and direct operations are primarily concentrated within the United States, where it operates an extensive network of natural gas, NGL, refined products, and crude oil pipelines and facilities. While its core business is domestic, ONEOK plays a role in the broader North American and global energy markets. For instance, its infrastructure supports the transportation of commodities to coastal areas for export, connecting U.S. energy supplies with international demand. The company's performance and strategy are also influenced by global energy prices and trade dynamics.

Street Address:

100 West Fifth Street

City:

Tulsa

State/Province:

Oklahoma

Country:

USA

Where Else Does ONEOK Operate Around the World?

Houston, Texas, USA

Address: 9 Greenway Plaza, Suite 800, Houston, TX 77046 (Post-Magellan merger, this is a significant office)

Supports ONEOK's extensive presence in the Gulf Coast energy market, facilitating access to critical infrastructure, petrochemical complexes, refineries, and export terminals. Houston is a major center for the energy industry.

Denver, Colorado, USA

Address: Regional operational offices support activities in the area; specific public-facing addresses for purely operational centers vary. Example: 5613 DTC Parkway, Suite 600, Greenwood Village, CO 80111.

Oversees critical midstream infrastructure connecting natural gas and NGL production in the Rockies to broader markets, supporting producers and end-users in the region.

Midland, Texas, USA

Address: Various field and operational offices supporting Permian Basin activities rather than a single large corporate office.

Crucial for ONEOK's footprint in the Permian, enabling the movement of hydrocarbons from wellhead to market centers and processing facilities.

Buying Intent Signals for ONEOK

Highperformr Signals uncover buying intent and give you clear insights to target the right accounts at the right time — helping your sales, marketing, and GTM teams close more deals, faster.

Notable news
Hiring actively
Corporate Finance
Corporate Finance
Corporate Finance
Corporate Finance
Corporate Finance
*Example signal, not calculated in real time

Who's Leading ONEOK? Meet the Executive Team

As of April 2025, ONEOK' leadership includes:

Pierce H. Norton II - President and Chief Executive Officer
Walter S. Hulse III - Executive Vice President, Chief Financial Officer and Treasurer
Kevin L. Burdick - Executive Vice President and Chief Operating Officer
Sheridan C. Swords - Executive Vice President, Commercial Liquids and Natural Gas
Charles M. Kelley - Executive Vice President, Commercial Refined Products and Crude
Stephen W. Lumbley - Executive Vice President, General Counsel and Assistant Secretary

Who's Investing in ONEOK?

ONEOK has been backed by several prominent investors over the years, including:

The Vanguard Group, Inc.
BlackRock, Inc.
State Street Corporation
J.P. Morgan Investment Management, Inc.
Goldman Sachs Asset Management
Geode Capital Management, LLC
ClearBridge Investments, LLC
Tortoise Capital Advisors, L.L.C.

What Leadership Changes Has ONEOK Seen Recently?

Hire0
Exits2

The most significant executive team developments in the last 12 months for ONEOK were primarily related to the completion of its acquisition of Magellan Midstream Partners in September 2023. This resulted in the confirmation of ONEOK's existing leadership in their roles for the combined entity and the departure of key executives from Magellan Midstream Partners.

Departures

Aaron L. Milford, Departed following the completion of ONEOK's acquisition of Magellan Midstream Partners, as the leadership of the combined company was assumed by ONEOK's executive team.
Jeff L. Holman, Departed following the completion of ONEOK's acquisition of Magellan Midstream Partners.

New Appointments:

Pierce H. Norton II, Confirmed to lead the combined ONEOK and Magellan entity post-merger, continuing his existing role at ONEOK.
Walter S. Hulse III, Confirmed as CFO of the combined ONEOK and Magellan entity post-merger, continuing his existing role at ONEOK.
Kevin L. Burdick, Confirmed as COO of the combined ONEOK and Magellan entity post-merger, continuing his existing role at ONEOK.

What Technology (Tech Stack) Is Used byONEOK?

Discover the tools ONEOK uses. Highperformr reveals the technologies powering your target accounts — helping your sales, marketing, and GTM teams prioritize smarter and close faster.

ONEOK Email Formats and Examples

ONEOK, Inc. typically utilizes a standard corporate email format for its employees, which is commonly based on the employee's name. The most frequently observed and generally accepted format is the 'first name.last name' convention followed by the company's domain.

first.last@oneok.com

Format

john.smith@oneok.com

Example

90%

Success rate

What's the Latest News About ONEOK?

ONEOK Press ReleaseApril 30, 2024

ONEOK Reports First Quarter 2024 Results and Increases 2024 Financial Guidance

ONEOK announced its first-quarter 2024 financial results, highlighting strong performance with net income of $639 million. The company also increased its 2024 net income and adjusted EBITDA guidance, citing positive contributions from all business segments and synergies from the Magellan acquisition....more

ONEOK Press ReleaseDecember 4, 2023

ONEOK Announces Open Season for Saguaro Connector Pipeline

ONEOK, Inc. announced a binding open season for the Saguaro Connector Pipeline, a proposed intrastate natural gas pipeline project intended to transport natural gas from the Waha Hub in West Texas to the U.S. and Mexico border, connecting with a new pipeline in Mexico for export to LNG facilities on the West Coast of Mexico....more

ONEOK Press ReleaseSeptember 25, 2023

ONEOK Completes Acquisition of Magellan Midstream Partners, L.P.

ONEOK, Inc. successfully completed its acquisition of Magellan Midstream Partners, L.P., creating a more diversified North American midstream infrastructure company with approximately 50,000 miles of pipelines. The transaction was valued at approximately $18.8 billion....more

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