Phillip G. Oldham

Phillip G. Oldham

  • 512.404.6702
  • 713.951.5893
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  • Thompson & Knight LLP
    98 San Jacinto Boulevard
    Suite 1900
    Austin, TX 78701 USA
View Phillip G. Oldham's
Phillip Oldham serves as a member of Thompson & Knight’s Management Committee.  Phillip focuses his practice on project development, acquisitions, infrastructure, energy transactions, federal and state regulatory and administrative law, and administrative litigation. He has specific expertise regarding energy projects, energy markets, and transactions. Phillip’s in-depth knowledge of regulatory issues in various industries makes him uniquely able to provide his clients with practical solutions to a host of legal issues.


Energy Markets and Transactions

  • Assists clients in navigating complex legal issues related to energy markets, including wholesale and retail electricity, natural gas, crude oil, and other energy commodity markets
  • Assists clients on a host of energy transactions, including asset acquisitions and commodity transactions. 
  • Provides strategic counseling to many Fortune 500 companies on energy market issues and strategies

Energy Regulatory

  • Assists clients in navigating the complex regulations applicable to the production, sale, and delivery of energy commodities, including electricity, oil, natural gas, and natural gas liquids 
  • Assists clients in managing regulatory risk and regulatory compliance issues
  • Represents several well-established trade associations on matters involving energy regulations and policy

Project Development and Transactions

  • Assists clients with all aspects of the development of large infrastructure projects, including pipeline projects, chemical manufacturing facilities, petrochemical facilities, gas processing facilities, carbon dioxide facilities, natural gas liquid fractionation facilities, LNG facilities, and electric transmission facilities 
  • Assists clients on a multitude of transactions, including the purchase and sale of chemical manufacturing facilities, upstream oil and gas production, cogeneration facilities, petrochemical facilities, gas processing facilities, carbon dioxide facilities, liquefied natural gas facilities, electric transmission facilities, hydrocarbon and chemical pipeline facilities, and a host of other transactions

Administrative Law and Litigation

  • Assists clients on numerous matters before state and federal agencies
  • Assists clients on significant issues involving litigation, policy decisions, and rulemakings before regulatory agencies such as the Public Utility Commission of Texas, the Texas Railroad Commission, the Kansas Corporations Commission, the Louisiana Public Service Commission, the Mississippi Public Service Commission, the Comptroller of the State of Texas, the Texas Racing Commission, the Electric Reliability Council of Texas, the Texas Reliability Entity, the Federal Energy Regulatory Commission, and the North American Electric Reliability Corporation
  • Assists clients on electric generation issues, electric transmission and transmission routing issues, utility rate cases and rate proposal matters, pipeline matters, gas storage matters, tax matters, and contested compliance and enforcement matters

Government Affairs

  • Assists clients in obtaining favorable legislative outcomes on a variety of issues, including electricity, oil and gas issues, biofuels, tax, environmental regulations, and gaming
  • Assists clients in all aspects of the legislative process, including legislative strategy, negotiations, bill drafting, lobbying, coalition management, grassroots strategies, and legislative monitoring

Prior Experience

  • Law Clerk, Honorable Emilio M. Garza, Fifth Circuit Court of Appeals, 1995-1996


  • The Best Lawyers in America® by Woodward/White Inc. (Administrative/Regulatory Law, Energy Law); 2006-2019
  • Chambers USA by Chambers & Partners (Energy: State Regulatory & Litigation (Electricity); 2011-2018
  • "Recommended Attorney," The Legal 500 US by Legalease (Industry Focus: Energy: Regulatory; Industry Focus: Energy: Litigation); 2013-2018
  • Texas Rising Star, Texas Monthly; 2005-2006

Activities (Memberships/Affiliations)

  • Member, Travis County Bar Association
  • Member, American Bar Association
  • Member, State Bar of Texas