Relationships	Role	Relationship Start	Relationship End
First Interstate Bancsystem, Inc.	Parent	1/10/2008	9/25/2009
Christen Group, Inc.	Parent	7/31/1997	1/9/2008
Christen Group, Inc.	Parent	10/1/1996	7/30/1997
Christen Group, Inc.	Parent	12/31/1992	9/30/1996
Christen Group, Inc.	Parent	12/31/1989	12/30/1992
Christen Group, Inc.	Parent	12/31/1983	12/30/1989
Christen Group, Inc.	Parent	12/31/1980	12/30/1983
Christen Group, Inc.	Parent	12/31/1976	12/30/1980
Christen Group, Inc.	Parent	12/31/1973	12/30/1976
Christen Group, Inc.	Parent	12/31/1970	12/30/1973
First Western Properties, Llc	Subsidary	7/27/2006	9/25/2009
Jr Properties, Llc	Subsidary	10/12/2006	9/25/2009

Acquisitions & Mergers	Role	Assets	Acct Method	Type	Transaction Date
First Interstate Bank	Buyer	8,944,669	Pooling of Interests	Discontinued	9/26/2009
The First Western Bank Custer	Seller	100,817	Pooling of Interests	Discontinued	9/30/2006
First Western Bank	Seller	176,176	Pooling of Interests	Discontinued	1/1/2004
American Bank Shares, Inc.	Seller		Pooling of Interests	Discontinued	1/1/2004