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ONEOK INC

OKE

Financials

2

exclusion reasons

2 themes

Fossil Fuels (1) Environmental Harm (1)
OKE Financials Current as of March 2026

This page is part of our public exclusion list — a transparency tool that shows which companies we screen out and why. It is not investment advice, and it is not an accusation. But it is subject to change as our understanding of the facts evolves.

Midstream Fossil Fuels
Since Jul 28, 2021

ONEOK is a midstream energy company whose core business is the transportation, storage, and processing of fossil fuels. It operates approximately 50,000 miles of pipelines and provides gathering, compression, treating, processing, fractionation, storage, and marine export services. Its extensive infrastructure network includes large storage and terminal capacity anchored at Mont Belvieu, a major hub for natural gas liquids (NGLs).

The company’s operations have been central to legal disputes over market conduct. In 2015, the U.S. Supreme Court ruled in *ONEOK, Inc. v. Learjet, Inc.*, a case where natural gas purchasers filed state-law antitrust claims. The purchasers alleged that interstate pipelines, including ONEOK, had manipulated natural gas indices, causing them to overpay. While the Supreme Court’s decision centered on federal preemption, the underlying allegations highlight the company’s integral role in the fossil fuel transportation and pricing system.

ONEOK’s business is defined by this essential midstream infrastructure, which supports the continued flow and market for natural gas and NGLs. There is no evidence of a company-wide plan to transition this asset base away from fossil fuels.

Environmental Damage
Since Apr 14, 2016

ONEOK operates a natural gas liquids (NGL) and natural gas pipeline network spanning approximately 50,000 miles across the central United States. This extensive infrastructure is inherently linked to documented environmental damage. ViolationTracker records nine water pollution violations against the company totaling $27.5 million in penalties, alongside a $600,000 air pollution penalty assessed to its subsidiary Magellan Terminals Holdings LP in 2023.

The company’s operations are situated within regions experiencing significant ecological harm from oil and gas development. In Oklahoma, where ONEOK is headquartered and operates a major pipeline hub, regulators have documented widespread issues with toxic wastewater from oil fields contaminating land and water resources. While ONEOK’s infrastructure facilitates the transportation of these commodities, the company’s own sustainability reporting focuses on operational emissions reductions, such as a 36% cut in Scope 1 methane emissions since 2019, rather than addressing the systemic environmental damage associated with the fossil fuel lifecycle it enables.

Research Sources 7 organizations

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Companies appear on our exclusion list based on our investment judgment — not because they've done anything illegal. This is a difference of values and opinion, not an accusation of wrongdoing. Exclusion does not constitute a recommendation against investing in any company, and absence from the list does not constitute a recommendation to invest.

This information is provided for educational and transparency purposes only and should not be relied upon as investment advice. Data is drawn from independent watchdogs, NGOs, government registries, and Ethical Capital's ongoing research — see Research Sources for the full list.

Ethical Capital LLC is a state-registered investment adviser in Utah (CRD #316032). Registration does not imply a certain level of skill or training.