John B. Thomas

John B. Thomas

Hicks Thomas LLP

Recognized since 2018

Houston, Texas

Practice Areas

Commercial Litigation

Commercial Litigation

Litigation - Intellectual Property

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John B. Thomas is the co-founder of Houston-based commercial litigation boutique Hicks Thomas LLP. Known for his deep experience in handling complex commercial litigation, Mr. Thomas and the firm’s lawyers represent both defendants and plaintiffs in lawsuits involving oil and gas, securities, environmental matters, banking, transportation, intellectual property and health care.

Mr. Thomas has been named to Lawdragon’s 500 Leading Lawyers in America, listed in Best Lawyers in America for his work in Commercial Litigation and Intellectual Property Litigation, selected as a Texas Super Lawyer by Thompson Reuters for every year since its inception, listed by Chambers USA as one of the leading lawyers in the country, and has an AV Preeminent rating from Martindale-Hubble. He also is a Fellow of the Texas Bar Foundation.

Mr. Thomas received his law degree from The University of Michigan Law School, and earned his undergraduate degree from Western Michigan University, where he was a Division I athlete. Following law school, he clerked for Edith H. Jones, Chief Judge (former) of the United States Court of Appeals for the Fifth Circuit.

Past Cases

Following are just a few examples of Mr. Thomas’ work for clients:

J.P. Morgan Chase – The worldwide financial services provider brought in Mr. Thomas to handle a matter before the International Arbitration Association that involved one of the largest credit card portfolios in the world. The lawsuit, which included jurisdictional disputes in New York and Houston, centered on the banking joint venture assembled to develop the co-branded Shell MasterCard. Facing off against Shell and Citibank, Mr. Thomas sought a substantial award against Chase’s joint venture partner, as well as a ruling that Chase was the owner of the accounts. After expedited discovery, the case was successfully tried before a Houston arbitrator before being resolved under confidential terms.

Occidental Petroleum Corp. – Mr. Thomas was hired as trial counsel in a high-stakes dispute following the company’s $3.6 billion acquisition of Altura Energy LP, the largest oil producer in Texas at the time. The defendant BP America Production Co. disputed Occidental’s marketing “call rights” involving oil and gas generated in the Texas Permian Basin. Mr. Thomas helped Occidental resolve the matter following a week of arbitration in Houston.

Reliant Energy – When investigators from the Securities and Exchange Commission (SEC) and the U.S. Commodity Futures Trading Commission leveled their aim at Texas-based Reliant Energy, the company’s board of directors called on Mr. Thomas to protect their individual interests. Government investigators set out to prove that Reliant had engaged in improper commodity trading practices in order to boost the company’s trading volumes and sales revenues. Reliant eventually agreed to a settlement with the SEC, but Mr. Thomas’ clients successfully emerged with no findings of wrongdoing.

King Ranch – When the owners of this historic Texas ranch found their property under siege, they called on Mr. Thomas to help unravel a 120-year-old legal battle. King Ranch founder Richard King was sued in the 1880s by the wife of a former business partner over her late husband’s interest in the 15,500 acres of land that later would become the centerpiece of the King Ranch cattle empire. That case eventually settled, with the business partner’s widow selling her property interests for $5,800. When the business partner’s heirs tried to undo the sale nearly 120 years later, Mr. Thomas successfully defended King Ranch by winning a ruling from the Supreme Court of Texas that preserved the earlier sale and confirmed the rightful owners of the King Ranch.

R.R. Street & Co. Inc. – Also known as Street’s, this company is one of the nation’s leading providers of detergents and process additives to the dry cleaning industry. Mr. Thomas’ track record on behalf of the company is just one reason why he has been Street’s go-to national counsel for more than 15 years. In addition to wins in courtroom trials and appeals, Mr. Thomas has become a trusted adviser to the company’s leaders based on his experienced counsel and proven business acumen. He has successfully defended Street’s in numerous individual cases filed across the U.S. by dry cleaners, local municipalities and various water authorities. In all, Mr. Thomas and his team have defeated hundreds of millions of dollars in product liability claims brought against the company. In addition to prevailing in multiple product liability jury trials in California and Texas, Mr. Thomas also obtained a win for Street’s at the Supreme Court of Texas in a case of first impression under the Texas Solid Waste Disposal Act.

Practice Areas:

  • Commercial Litigation
  • Oil and Gas Litigation
  • Securities Litigation
  • Class Actions


  • 700 Louisiana Street, Suite 2300
    Houston, TX 77002


  • Western Michigan University, B.S., with honors, graduated 1983
  • University of Michigan - Ann Arbor, J.D.

Bar Admissions

  • Texas, State Bar of Texas

Court Admissions

  • United States District Court for the Northern District of Texas
  • United States District Court for the Southern District of Texas
  • United States Court of Appeals for the Fifth Circuit
  • United States District Court for the Western District of Texas

Hicks Thomas LLP
Headquarters: Houston, Texas

12 The Best Lawyers in America® awards

2 Best Lawyers: Ones to Watch in America awards

Best Law Firms Badge Full Firm Profile

Recognized in The Best Lawyers in America® 2023 for work in:

  • Litigation - Intellectual Property
  • Commercial Litigation
  • Commercial Litigation


  • Chambers USA Leading Lawyers for Business – Environmental Litigation
  • Benchmark Litigation, the definitive guide to the world's leading litigation firms and lawyers.
  • Best Lawyers in America, 2018-2021
  • 500 Leading Lawyers in America by Lawdragon
  • Texas Super Lawyers - Business Litigation – 2003-2020
  • AV Preeminent Rating from Martindale-Hubbell
  • Judicial Clerkship, Honorable Edith H. Jones, Chief Judge, United States Court of Appeals for the Fifth Circuit
  • Inside Houston Magazine – Best Environmental Lawyer

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