Pat Lochridge has a broad-based litigation practice with a strong emphasis on energy litigation, including oil and gas class actions, royalty claims and operational disputes. In addition to his energy-related work, Pat has significant experience in technology, antitrust, professional malpractice and business disputes. He was managing partner of the firm from 2000 until 2010.

Born in the Rio Grande Valley, Pat has litigated frequently and successfully from South Texas to Dallas, Houston, San Antonio and Austin. His oil and gas practice also takes him to Oklahoma, Kansas, Wyoming and Montana.

Independently selected by Chambers and Partners USA in Texas for Litigation: Energy & Natural Resources, Pat has been described as  “one of the finest oil and gas trial lawyers you'll ever get to know."  He has also been listed in Best Lawyers© as Lawyer of the Year in Oil & Gas Law – Austin in 2011 and Bet-the-Company Litigation – Austin in 2009.  He has been listed in Best Lawyers© in the fields of Bet-the-Company Litigation, Energy Law, Litigation – Intellectual Property, Natural Resources Law and Oil & Gas Law since 1993.  He has been recognized as a "Top-Notch Lawyer" in energy law (2002) by Texas Lawyer.  He was awarded the Austin Bar Association’s Distinguished Lawyer Award in 2012 and the Lifetime Achievement in Energy Litigation Award by The Center for American and International Law in 2014.  Pat has been selected to the Texas Super Lawyers list, a Thomson Reuters service, (2003-2015).

Oil & Gas/Energy Litigation

Pat’s wide-ranging experience in energy litigation includes:

  • Defending a major oil company in various class actions in Oklahoma and Kansas.
  • Representing a royalty owner and obtaining a jury verdict and judgment against an oil company in East Texas.
  • Representing a major pipeline company in an insurance coverage case and obtaining a  verdict and judgment for client.
  • Representing an independent oil and gas exploration company in a case involving misappropriation of confidential information. Pat obtained a verdict and judgment for the client in Webb County.
  • Representing a South Texas family against a major oil company on a royalty claim in Duval County. 
  • Successfully defending various major oil companies in royalty and environmental litigation across Texas.

Intellectual Property & Technology Litigation 

Pat has substantial intellectual property experience, which includes:

  • Defending an international electronics firm in a patent licensing case. The plaintiff sought damages in excess of $200 million; however, the jury found no damages. The case was affirmed in the United States Court of Appeals for the Fifth Circuit.
  • Representing a publicly-traded software company and a publicly-traded photomask company in separate trade secret cases based on the inevitable disclosure doctrine.  Pat received favorable confidential settlements for each client.
  • Representing a Hong Kong-based original equipment manufacturer (OEM) against one of world’s largest makers of personal computers. Pat recovered multi-million dollar damages for the client.
  • Serving as counsel for numerous technology companies in patent cases in the Western District of Texas.

Professional Liability Litigation

Throughout the course of his career, Pat has successfully defended several different major law firms in securities, class action and malpractice cases.

Complex Business Litigation 

Pat’s commercial litigation experience is expansive and includes:

  • Defending a real estate developer in a $44 million fraud and breach-of-fiduciary-duty case. The court dismissed the case during trial and the client was awarded attorneys’ fees against the plaintiff.
  • Representing a Fortune 500 staff leasing company in a breach-of-contract case against an insurance company. Pat obtained a favorable verdict and judgment for the client and a take-nothing judgment on the insurance company’s $30 million counterclaim.
  • Representing a South Texas physician in an antitrust action against a member of a nationwide chain of hospitals. The client received a favorable confidential settlement during trial.
  • Defending a hospital against the antitrust claims of a group of doctors. Pat obtained judgment for the hospital on all antitrust claims and the case was affirmed by the United States Court of Appeals for the Fifth Circuit.
  • Defending a computerized print-and-mail company in a fraud and breach-of-contract case. Pat received a defense verdict for client, plus a favorable verdict on the client’s counterclaim.
  • Representing a hotel company in a business disparagement and tortious interference case against an international accounting and consulting firm. Pat received a favorable verdict and judgment for the client in Webb County.
  • Defending a specialty chemical company in a product liability case brought by a major chip manufacturer. Pat received a favorable jury verdict for the client.
  • University of Texas Law School’s Outstanding Alumnus (2016)
  • Professional Excellence Award, Lifetime Achiever –Texas Lawyer (2016)
  • Selected by Chambers and Partners USA in Texas for Litigation: Energy & Natural Resoures (2015)
  • Listed in Best Lawyers© in the fields of Bet-the-Company Litigation, Energy Law, Litigation – Intellectual Property, Natural Resources Law and Oil & Gas Law since 1993
  • Recipient, The Center for American and International Law Lifetime Achievement in Energy Litigation Award, (2014)
  • Texas Super Lawyers list, a Thomson Reuters service, Energy & Natural Resources (2003-2015)
  • Recipient,  Austin Bar Association Distinguished Lawyer Award (2012)
  • Listed in Best Lawyers© as Lawyer of the Year in Oil & Gas Law – Austin for 2011 and Bet-the-Company Litigation – Austin (2009)
  • Texas Super Lawyers list, a Thomson Reuters service, Civil Litigation Defense (2005)
  • Top-Notch Lawyer in energy law, Texas Lawyer (2002)

  • United States District Court, Western District of Texas, Austin Division, Admissions Committee (Chairman 1995-2004)
  • United States District Court Committee on Court Administration (Chairman 1986-97)
  • American College of Trial Lawyers, Fellow
  • American Bar Association
  • American Board of Trial Advocates
  • Austin Bar Association
  • Salvation Army (Board of Trustees 1998-2012)
  • St. Andrew’s School (Board of Trustees 1986-89)