Mark A. Santos

Mark Santos represents electric and natural gas distribution utilities in complex administrative litigation before the Public Utility and Railroad Commissions of Texas. Mark’s experience includes work on natural gas distribution and electric rate cases, rate case expense dockets, certificate of convenience and necessity requests, rulemaking projects, fuel factor and fuel reconciliation proceedings, and energy efficiency cost recovery cases.

  • Recognized by Best Lawyers® 2022-2025
  • The University of Texas School of Law Extended Faculty Member
    • Adjunct Professor – Trial Advocacy Department
  • Senior Defense Counsel, U.S. Army, Fort Sam Houston, Texas, 2005 – 2007
  • Trial Defense Counsel, U.S. Army, Fort Hood, Texas, 2003 – 2005
  • Assistant Attorney General, Texas Office of the Attorney General, 2002
  • Law Clerk, Texas Attorney General’s Office, 1999 – 2002

Best-Lawyers-MAS-2025

  • Lead counsel for a Texas electric transmission and distribution utility in 2016, 2017, and 2018 Distribution Cost Recovery Factor proceedings before the Public Utility Commission of Texas
  • Lead counsel for a Texas gas distribution utility in 2015, 2016, and 2017 general rate proceedings before the Railroad Commission of Texas
  • Lead counsel for a Texas electric and gas distribution utility in 2014 and 2015 remand proceedings at the Public Utility Commission of Texas and Railroad Commission of Texas
  • Co-counsel for an Arkansas gas distribution utility in a 2015 general rate proceeding before the Arkansas Public Service Commission
  • Co-counsel for an Arkansas gas distribution utility in a 2018 proceeding before the Arkansas Public Service Commission related to the Tax Cuts and Jobs Act of 2017
  • Co-counsel for an Arkansas gas distribution utility in 2016 and 2017 formula rate plan proceedings before the Arkansas Public Service Commission
  • Co-counsel for one of the largest wholesale water providers in Texas before the Public Utility Commission of Texas regarding a public interest challenge to the provider’s rates
  • Co-counsel for an investor owned utility in sale, transfer, merger proceedings before the Public Utility Commission of Texas
  • Co-counsel in numerous appeals from administrative agency orders involving Texas electric and distribution utilities and Texas natural gas distribution utilities
  • Co-counsel for a Texas electric transmission and distribution utility in 2015 Distribution Cost Recovery Factor Proceeding before the Public Utility Commission of Texas
  • Co-counsel for a Texas gas distribution utility in 2014 Rate Review Mechanism appeals before the Railroad Commission of Texas
  • Co-counsel for a Texas gas distribution utility in rate case proceedings for 2010, 2012, 2013 and 2014 rate filings before the Railroad Commission of Texas
  • Co-counsel for Texas gas distribution utilities in rate case expense proceedings for 2007, 2009, 2011 and 2012 system-wide rate filings before the Railroad Commission of Texas
  • Co-counsel for Texas electric utilities in 2010 and 2012 general rate proceedings before the Public Utility Commission of Texas
  • Lead counsel for a Texas electric utility in 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017 and 2018 energy efficiency cost recovery factor proceedings before the Public Utility Commission of Texas
  • Appointed arbitrator in 2018-19 dispute related to water rates
  • Routinely represent and advise clients in rulemaking and compliance-related proceedings
  • Austin Bar Association
  • Austin Young Lawyers Association
  • Texas Bar Foundation
  • Texas Utility Lawyers

Education

  • The University of Texas School of Law 2002, J.D.
  • Texas A&M University 1999, Bachelor of Arts, cum laude
  • U.S. Army Judge Advocate Legal Center and School, Charlottesville, Virginia 2003

Professional Licenses

  • State Bar of Texas 2002
  • United States Court of Appeals for the Armed Forces 2006
  Contact

Call Mark directly at (512) 879-0936 or use the form below to send him an email:

Name *
person
Fill out this field
Email *
email
Fill out this field
Phone *
phone
Fill out this field
Text *
create
Fill out this field
keyboard_arrow_up