Great Western Bank has announced an agreement to partner with First Interstate Bank, which is headquartered in Billings, Montana.  

Under the terms of the agreement, Great Western Bank will merge into First Interstate Bank and the combined holding company and bank will operate under the First Interstate name and brand.  The transaction is expected to close in the first part of 2022, with the conversion of Great Western Bank branches to First Interstate Bank branches expected to take place after that.  

More information on the new partnership can be found here.