Tulsa County Member, Court Operations Grievance and Alternative Dispute Resolution Committees, Oklahoma Director, Young Lawyers Division, 1983-1985 and American Member, Sections on Litigation Business Law Torts and Insurance Practice Construction

Tulsa County Member, Corporate Law Section, 1980— Oklahoma Member, Business Associations Section, 1984 and American Chairman, Committee of Real Property, Probate and Trust Law Section on Current Legislation, 1988-1993 Member, Section of Business Law

Tulsa County Member, Mineral Law Section, President, 1990, Oklahoma Member, Sections on Real Property and Mineral Law and American Member, Sections on Real Property, Probate, Trust and National Resources Law Bar Associations.

Tulsa County, Oklahoma Chairman, Mineral Law Section, Illinois, Missouri and American Bar Associations Texas State Bar Tulsa Association of Petroleum Landmen Oklahoma Independent Petroleum Association Chair, Legal Committee, 2003—.

Tulsa County Member Law Related Education Committee Court Operations Committee and Oklahoma Bar Associations Defense Research Institute Oklahoma Association of Defense Counsel.

Tulsa County, Oklahoma and American Bar Associations.

Tulsa County, Oklahoma and American Bar Associations.

National Association of Bond Lawyers.

Tulsa County and Oklahoma Bar Associations Oklahoma Association of Defense Counsel.

Oklahoma Bar Association Member, Client Security Fund Committee, 1996— National Academy of Elder Law Attorneys.