Nathan Aduddell

Associate, New York



Nathan is a disputes lawyer in the Firm's International Arbitration and Litigation Groups. Deeply committed to his clients and driven to provide winning results, Nathan counsels and represents private companies and sovereign states in high-stakes disputes around the world.

With a concentration on cross-border disputes, Nathan represents clients in both commercial and investment treaty arbitrations before the major arbitral institutions and in ad hoc proceedings, and also in a host of matters before US state and federal courts. Nathan has acted as counsel in disputes arising in jurisdictions across the globe and spanning a wide range of industries, including technology, energy, natural resources, mining, insurance, infrastructure, construction, financial services, and hospitality.

Nathan also maintains a dedicated pro bono practice. Motivated by a passion for criminal justice and civil rights causes, Nathan has represented clients in cases concerning the Eighth Amendment's prohibition on cruel and unusual punishment before both the US Fifth Circuit Court of Appeals and the US Supreme Court.

Nathan graduated summa cum laude from the University of Oklahoma College of Law.  There he was an editor of The Oklahoma Law Review and competed in the moot court program, winning First Place in the Calvert Moot Court Competition and Regional Champion in the ABA National Appellate Advocacy Competition. Nathan's efforts earned him admission into the Order of the Coif, Order of the Barristers, and Order of the Scribes, and he was the recipient of the Paul K. Frost II Memorial Prize for outstanding achievement.

Before law school, Nathan obtained a BA in theatre performance from Marymount Manhattan College in New York.  And he continues to use that training today: from finding creative solutions to presenting a compelling case, Nathan draws upon his background in storytelling to enhance his work in the law. 

Bars and Courts
New York State Bar
Texas State Bar
University of Oklahoma College of Law
Theatre Performance
Marymount Manhattan College


Examples of Nathan's experience include acting for:

International Arbitration

  • A European state in an ICSID arbitration arising out of a mining concession.
  • An insurance company in an ad hoc arbitration concerning a coverage dispute under a Bermuda Form insurance policy. Obtained complete dismissal of claims brought by an oil and gas major at threshold stage of the arbitration.
  • A Central Asian state in an ICSID arbitration brought by investors seeking more than US$800 million for alleged BIT violations in the construction materials sector.
  • A technology company in a JAMS arbitration arising out of an international partner and distribution agreement.
  • Grupo Unidos por el Canal (GUPC) and its European partners in an ICC arbitration arising out of a US$3 billion+ deal to construct a new set of locks at the Panama Canal.
  • An oil and gas company in an ICC arbitration concerning the effect of government action on a cross-border gas supply agreement.*
  • Various energy companies in ICC and ad hoc arbitrations arising out of joint operating agreements, farmout agreements, and government concessions.*

Commercial and Civil Rights Litigation

  • A technology company in defeating a request for an anti-suit injunction brought before the US District Court for the Southern District of New York.
  • The Due Process Institute in filing a brief to the US Supreme Court as amicus curiae in support of the petitioner in Nelson v. Minnesota (No. 20-1155).
  • A financial services company defending claims of fraud and breach of contract in the US District Court for the Northern District of Texas.*
  • A physicians group facing claims of wrongful discharge, breach of fiduciary duty, and shareholder oppression.*
  • A group of inmates seeking relief for unconstitutional conditions of confinement at a federal prison. Led appeal and argued case before the US Court of Appeals for the Fifth Circuit as a second-year associate.*

*Matters worked on prior to joining White & Case.


Co-Author, Charting the Seas of Antitrust: Trends and Direction in Antitrust Law, State Bar of Texas — 12th Annual In-House Counsel Course (2013)

Co-Author, Texas Oil and Gas Case Law Update, TADC (Fall 2011 & Spring 2012 eds.)

Co-Author, Practical Considerations & Ethical Traps in Joint Representation, State Bar of Texas — Advanced Patent Litigation Course (2010)