Please note that you may request free of charge a printed copy of any of the publications listed below by contacting our Investor Relations Department by phone at (605) 978-2945 or by e-mail at investor.relations@northwestern.com.

•   2019 Annual Report/10-K 
   
•   2018 Annual Report/10-K 
   
•   2017 Annual Report/10-K 
   
•   2016 Annual Report/10-K 
   
•   2015 Annual Report/10-K 
   
•   2014 Annual Report/10-K 
   
•   2013 Annual Report/10-K 
   
•   2012 Annual Report/10-K  
   
•   2011 Annual Report/10-K