TSP Name:                                  Northern Natural Gas Company
TSP:                                       784158214
Notice ID:                                 100686
Notice Type:                               Computer System Status
Subject:                                   UPDATE 1: BUSINESS APPLICATIONS INTERRUPTION
Critical:                                  N
Post Date/Time:                            01/10/2026 06:12 PM
Notice Status:                             Supersede
Prior Notice:                              100680
For Gas Day(s):                            01/10/2026 - 01/13/2026
Notice Effective Date/Time:                01/10/2026 06:12 PM
Notice End Date/Time:                      01/14/2026 08:59 AM
Required Response Indicator Description:   5-No response required

Notice Text: 

  


  
    
      Update 1:
    
    Northern's business applications are now operating normally. The recent
interruption was caused by a Microsoft Azure service disruption.
  
  


  
    
  
  


  
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blank white screen is encountered when logging in, please hold down the Ctrl
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    Thank
you for your patience and understanding.
  
  


  
    
  
  


  
    
      Original
Notice:
    
    Northern
is experiencing intermittent service interruption limiting access to its
business applications, including the Throughput Management System (TMS),
Capacity Release System, Flowing Gas and ODI. 
  
  


  
    
  
  


  
    Northern
regrets any inconvenience this may cause and, if necessary, will extend the Evening
nomination cycle deadline for Gas Day Sunday, January 11, 2026, to provide
customers with additional time to complete their nominations.
  
  


  
    
  
  


  
    An
update will be provided once system availability is restored. 
  
  


  
    
  
  


  If you have any questions, please
contact your customer service representative.