Relationships	Role	Relationship Start	Relationship End
First Interstate Bancsystem, Inc.	Parent	7/1/1995	11/9/2001
Commerce Bancshares Of Wyoming, Inc.	Parent	1/1/1988	6/30/1995
Commerce Bancshares Of Wyoming, Inc.	Parent	12/31/1980	12/31/1987
Commerce Bancshares Of Wyoming, Inc.	Parent	9/2/1975	12/30/1980

Acquisitions & Mergers	Role	Assets	Acct Method	Type	Transaction Date
First Interstate Bank	Buyer	8,944,669	Pooling of Interests	Discontinued	11/10/2001
The Equality State Bank	Seller	93,485	Acquisition	Discontinued	9/16/2000
First Interstate Bank Of Wyoming, National Association	Seller	312,012	Pooling of Interests	Discontinued	6/7/1997
First Interstate Bank Of Buffalo	Seller	12,875		Discontinued	1/1/1989
First Interstate Bank Of Sugarland	Seller	13,906		Discontinued	1/1/1989
First Interstate Bank Of Gillette	Seller	95,831		Discontinued	1/1/1989
First Interstate Bank Of Greybull, National Association	Seller	18,081		Discontinued	1/1/1989