Occidental Petroleum, Exxon Mobil and Suncor Energy are involved in a pivotal U.S. Supreme Court case. Oral arguments in Suncor Energy Inc. v. County Commissioners of Boulder County are scheduled for October 5, 2026.

The case concerns whether oil and gas companies can be held financially responsible for climate change damages. A ruling could affect more than 60 similar lawsuits across the United States.

The suits generally allege that fossil fuel companies knew their products contributed to global warming but misled the public. Boulder County, Colorado, is seeking millions of dollars to cover public health and environmental costs associated with climate change. A successful claim could set a significant precedent for the industry.