Delek US Holdings Data Breach Lawsuit Investigation

Shamis & Gentile P.A., one of the nation's premier class action law firms specializing in data breach cases, is investigating the Delek US Energy, Inc. data breach.

If you were affected by the data breach, your sensitive personally identifiable information may have been exposed, and you may be eligible for compensation.

About Delek US Energy

Based in Brentwood, Tennessee, Delek US Energy, Inc. focuses on petroleum refining, logistics, asphalt and renewable fuels. Delek US operates several refining facilities located in Tyler and Big Spring, Texas, El Dorado, Arkansas, and Krotz Springs, Louisiana. Delek US also manages a logistics business that provides transportation, storage and midstream services for crude oil and refined products.

What Happened?

Delek US Energy reported a data breach that may have exposed sensitive personal information to the Texas Attorney General on Oct. 16, 2026. The breach reportedly affected at least 1,666 people in Texas.

On Aug. 19, 2026, a threat actor known as HELIX claimed responsibility for the breach and posted about it on the dark web, stating that 759.20 GB of data had been compromised.

The following information types were confirmed to have been potentially exposed in the incident:

Information Exposed:

• Names of individuals
• Social Security numbers
• Driver’s license numbers

The company sent notification letters to affected individuals by U.S. Mail.

You May Be Entitled to Compensation

If you were affected by the Delek US Energy, Inc. data breach, you could be eligible for compensation. Lawyers are investigating claims on behalf of individuals whose personal information was exposed.

To find out if you qualify and to take the next step in protecting your rights, complete the below form to join the lawsuit.

Sources

• Texas Attorney General
• Dark web