Relationships	Role	Relationship Start	Relationship End
Bancoklahoma Corp.	Parent	10/2/1986	10/13/1989
Citbanko, Inc.	Parent	12/31/1984	10/1/1986
Citbanko, Inc.	Parent	12/31/1970	12/30/1984
Affiliated Bancservices, Inc.	Subsidary	12/31/1980	10/1/1986
Affiliated Bancservices, Inc.	Subsidary	12/31/1979	12/30/1980
Affiliated Bancservices, Inc.	Subsidary	10/12/1977	12/30/1979
Exchequer Systems, Inc.	Subsidary	7/27/1976	1/2/1979
City National Building Corporation	Subsidary	12/31/1976	10/16/1978

Acquisitions & Mergers	Role	Assets	Acct Method	Type	Transaction Date
Bokf, National Association	Buyer	32,669,391		Discontinued	10/14/1989