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William W. O'Connor William W. O'Connor

William “Bill ” W. O'Connor

Shareholder & Director

Bill O'Connor has been practicing law for more than 30 years and concentrates his practice in the litigation arena, specifically Complex Litigation in Energy, Pharmaceutical and Medical Device, Employment, Securities, Antitrust, Class Action, Intellectual Property, Construction, Products Liability, and Tort and Insurance Law. He is a member of the firm's Board of Directors and has an individual  AV Preeminent rating through Martindale-Hubbell.

Bill serves on the Adjunct Settlement Judge panel for the United States District Court for the Northern District of Oklahoma and conducts private mediations in complex litigation matters. 


  • University of Oklahoma College of Law (J.D., 1989) Member, Oklahoma Law Review
  • Oklahoma State University (B.S. in Accounting, 1986)


  • Oklahoma (1989)
  • U.S. District Court for the Northern, Eastern and Western Districts of Oklahoma
  • U.S. District Court, District of Colorado
  • U.S. Court of Appeals for the Eighth and Tenth Circuits
  • United States Supreme Court
  • 2017-Present Hall Estill
  • ​Newton, O'Connor, Turner & Ketchum
  • Norman, Wohlgemuth, Chandler, Jeter, Barnett & Ray 
  • Recognized as a Best Lawyer in America in Commercial Litigation
  • Recognized as a Top 50 attorney in Oklahoma by Super Lawyers
  • Recognized as a Super Lawyer in Oklahoma in Business Litigation
  • Recognized as a Local Litigation Star by Benchmark Litigation
  • Inductee into the Bishop Kelley High School Hall of Fame in 1999
  • William K. Warren Foundation, Member, Board of Directors
  • Oklahoma Center for Community and Justice, Former Member, Board of Directors and Executive Committee
  • Special Olympics - Oklahoma, Member, Board of Directors
  • The Committee of 100, Former Member, Board of Directors
  • Bishop Kelley High School, Former Member, Board of Directors (1996-2004)
  • Member, American Inns of Court and Master of the Bar
  • Member, Federal Bar Association 
  • Member, American Bar Association, Antitrust & Litigation Sections