John T. "Trey" Cox III

4.7 (6 reviews )

Dallas Texas United States

Energy Regulatory Law Commercial Litigation Litigation - Intellectual Property +1 more

Recognized in Best Attorney USA since 2010

214-698-3100 Website

About John

Trey Cox: Litigation Partner at Gibson Dunn in Dallas, Texas

With over three decades of courtroom experience as a litigation partner with Gibson Dunn, Trey Cox is an accomplished and sought-after advocate and trial lawyer. His career has been dedicated to resolving complex business disputes, from high-profile cases involving trade secrets and securities fraud to those centered around breach of fiduciary duty and partnership disputes.

Practice Areas

Energy Regulatory Law
Commercial Litigation
Litigation - Intellectual Property
Litigation - Securities

Schools & Education

Trey Cox received his B.A. magna cum laude from Washington & Lee University, and his J.D., from the University of Virginia School of Law.

After graduating, he clerked for Honorable Jacques L. Wiener Jr. of the United States Court of Appeals for the Fifth Circuit.

Awards & Recognitions

Lawyer of the Year: Energy Regulatory Law, Dallas/Fort Worth (2026)
Recognized as a 'Best Lawyer Under 40' by D Magazine for five consecutive years from 2012 to 2016
Listed as a 'Texas Super Lawyer' by Law & Politics (as seen in Texas Monthly) from 2004 to 2011
Selected by the Dallas Business Journal as a 'Defender'
Recognized as one of the 'Top 10 Metroplex Litigators Worth Having on Your Side'
AFFILIATED WITH:
- Firms: Gibson, Dunn & Crutcher LLP

Practice Areas

Energy Regulatory Law

Commercial Litigation

Litigation - Intellectual Property

Litigation - Securities

Education

University of Virginia

Washington and Lee University

Professional Affiliations

Awards & Recognition

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Reviews

4.7 / 5

6 Reviews

1,045 Profile Views

Amara Okonkwo

Jan 18, 2026

Exceptional Communication and Responsiveness Throughout Our Case

I was involved in a complex energy regulatory dispute that threatened our company's operations. From day one, Trey Cox demonstrated remarkable communication skills. He responded to emails within hours...

Henrik Johansson

Jan 18, 2026

Unparalleled Expertise in Intellectual Property Litigation

When our startup faced a trademark infringement lawsuit that could have destroyed our brand, we turned to Trey Cox. His deep knowledge of IP law was immediately evident. He not only understood the tec...

Yuki Nakamura

Jan 18, 2026

Secured a Landmark Settlement in Securities Fraud Case

Our investment firm was defrauded of millions through complex securities manipulation. Trey Cox took our case and achieved what seemed impossible - a $42 million settlement before trial. His approach...

Fatima Al-Rashid

Jan 18, 2026

Compassionate Guidance During the Most Stressful Time

As a small business owner facing a partnership dispute that felt personal and devastating, I needed more than just a lawyer - I needed someone who understood the emotional toll. Trey Cox showed genuin...

Diego Alvarez

Jan 18, 2026

The Professionalism You Expect from a Top Trial Lawyer

In our high-stakes commercial litigation involving oil and gas contracts, Trey Cox's professionalism was exemplary. His reputation preceded him - opposing counsel treated him with respect from the out...