Image: Thomas Diaz
Thomas P. Diaz
Shareholder, New Orleans
Hancock Whitney Center
701 Poydras Street
Suite 5000
New Orleans, Louisiana 70139


Tom Diaz is an experienced energy industry and maritime lawyer who assists domestic and overseas clients in civil litigation as well as state and federal regulatory matters.  His clients are often U.S. corporations facing exposures arising from incidents in the Gulf of Mexico as well as onshore facilities along the Gulf coast and on the Mississippi River. 

Tom has practiced maritime law for over 25 years and has supported clients with their onshore and offshore incident investigations, regulatory compliance matters, and civil litigation following incidents such as:

  • Collisions, allisions and vessel sinkings
  • Fires and explosions aboard production facilities and vessels
  • Hydrocarbon releases both near shore and deepwater
  • Crane collapses and accidents at marine terminals and on MODUs
  • Serious personal injuries and wrongful deaths
  • Vessel seizures

In the course of such representations, he frequently interacts with representatives of OSHA, BSEE, the NTSB and the Coast Guard.  Tom and his team work cooperatively with regulators who often benefit from and appreciate the insights and expertise developed in the course of incident investigation.  

That cooperation and information sharing also ensures, as best possible, that the regulatory record is complete in the event of any contested compliance findings.  Being involved from the outset of an incident – as a member of Liskow’s Crisis and Emergency Response Team – also ensures that the firm’s broad experience in all aspects of the energy and maritime industry is brought to bear for the benefit of firm clients.




  • Louisiana Oil & Gas Association, Member
  • Louisiana State Bar Association, Member
  • American Bar Association, Member


  • Habitat for Humanity
  • Friends of City Park
  • Southern Yacht Club


  • The Best Lawyers in America, 2013–2022
  • Louisiana Super Lawyers, 2013–2018                          
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Thomas P. Diaz

Selected in 2018
Thomson Reuters 


  • “2021 Federal Offshore Update,” Liskow & Lewis Webinar, February 10, 2021
  • "Casualty Strikes – Analysis of an Offshore Incident," Liskow & Lewis Oilfield Indemnity and Insurance Seminar, October 30, 2014, Houston, Texas


  • "Maritime Wrongful Death: A Riptide Develops Off the United States Coast," 62 Tul. L. Rev. 597 (1988).