Tammy Barrett

Tammy D. Barrett

Tammy Barrett. a shareholder in the Tulsa office of GableGotwals, has more than 30 years of legal experience. She represents both privately-held and public companies in a wide range of litigation matters, and has experience in antitrust actions, complex contract cases, business torts, class actions, construction cases, securities litigation, director and officer liability actions, oil and gas cases, employment cases, and social security law.

Tammy was born in Wichita, Kansas but lived in five different states before attending law school in Oklahoma. Before joining the Firm, she served as a law clerk to the Honorable Gregory K. Frizzell (2007-2008) and the Honorable Sam A. Joyner (1995-2007), on the United States District Court for the Northern District of Oklahoma.

She served as Troop Leader in Girl Scouts, and has also been involved in a variety of community organizations including American Inns of Court, various Tulsa County Bar Association Committees, and local youth basketball and baseball organizations.

Tammy’s recent experience includes:

  • Obtaining favorable results in both trial and appellate courts on class action cases.
  • Successfully obtaining trial court decision and defending summary judgment on appeal in favor of client in a complex commercial contract action
  • Successfully defending favorable trial court jurisdictional holdings at appellate level in complex litigation action
  • Successfully assisting in obtaining preliminary injunctive relief in identity theft action


J.D. with honors, University of Oklahoma College of Law, 1990

B.S. in English and Social Science, Emporia State University, 1987


Best Lawyers
Appellate Practice
Energy Law


Oklahoma Bar Association
Tulsa County Bar Association