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John M. Hickey Shareholder

T 918-594-0610 | F 918-594-0505 |

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John Hickey handles litigation matters ranging from commercial litigation and construction law disputes to bankruptcy, labor and employment, and real estate litigation. His experience encompasses both federal and state courts in cases involving complex, multi-state commercial lawsuits and bankruptcy proceedings, as well as employment discrimination litigation and complex construction arbitrations.

An experienced 30 year attorney, John serves as the lead shareholder for the Cannabis Law practice. Licensed in Oregon and Oklahoma, John has been working with clients for a number of years in the Cannabis Law area. From walking clients through the license application process to preparing agreements, John is knowledgeable in all aspects of the cannabis business.

In addition, John has been named an Oklahoma Super Lawyer in Construction Litigation and Cannabis Law, and has an AV peer rating through Martindale-Hubbell.


  • University of Indiana (B.A., 1978)
  • University of Tulsa College of Law (J.D., 1985)


  • Oklahoma, 1985
  • Oregon, 2016
  • U.S. District Court for the Eastern, Northern and Western Districts of Oklahoma
  • U.S. District Court for the District of Oregon
  • U.S. Tax Court
  • U.S. Court of Federal Claims
  • United States Supreme Court
Legal Experience
  • 2013-Present Hall Estill
  • 2009-2013 Riggs Abney
  • 1991-2009 Barber & Bartz
  • 1988-1991 Assistant General Counsel, Thrifty Rent-A-Car System
  • 1984-1988 Stainer & Stainer
Community Involvement
  • Chair, Board of Directors, OK POP
  • YMCA, Member, Board of Directors
  • Oktoberfest, Member, Board of Trustees
  • Family Safety Center, Member, Board of Directors
  • Tulsa Area United Way, member, Community Investment Panel
  • Tulsa Rugby Club, coach
  • Member, Leadership Tulsa Class XXVI
  • Former Member, Advisory Board, Leadership Oklahoma
Professional Involvement
  • Member, American Arbitration Association Roster of Neutrals
  • Oklahoma Bar Association, Member, Cannabis Law Committee
  • Tulsa County Bar Association
  • Oregon Bar Association
Reported Cases
  • 2015 OK Civ App 25, Capital One Bank, Plaintiff/Appellee v. Jennifer Sullivan, Defendant, McNellie's, LLC, Garnishee/Appellant, Case No. 111,989. February 19, 2015