TSP Name:                                  Northern Natural Gas Company
TSP:                                       784158214
Notice ID:                                 094306
Notice Type:                               Planned Service Outage
Subject:                                   PLANNED SERVICE OUTAGES - AUGUST 2025 THROUGH NOVEMBER 2025
Location:                                  MARKET AND FIELD AREA
Critical:                                  N
Post Date/Time:                            08/21/2025 01:00 PM
Notice Status:                             Supersede
Prior Notice:                              094296
For Gas Day(s):                            08/21/2025 - 11/30/2025
Notice Effective Date/Time:                08/21/2025 01:00 PM
Notice End Date/Time:                      12/01/2025 08:59 AM
Required Response Indicator Description:   5-No response required

Notice Text: 

  
    


    
      Northern has scheduled the
service outages that will affect operating capacity within the months of August
2025 through November 2025. Please review the 
      
        
          
            Planned Service Outage Summaryfor detailed information related to each
outage.
    
    


    
      
        
      
    
    


    
      A brief description of the
most recent change(s) to the Planned Service Outage Summary follows. 
    
    


    
      
        
      
    
    


    
      
        
          Market/Field Area Combined
        
      
    
    


    
      
        Allocation Group(s)/Point(s): 
      
      Field to Demarc (Group 831) and Beatrice North (Group 832)
    
    


    
      
        Location: 
      
      Northern's mainlines and compressor stations between
Mullinville, Kansas, and Ogden, Iowa
    
    


    
      
        Project Description:
      
       Pipeline and compressor station maintenance
    
    


    
      
        Month:
      
       August 2025 through October 2025
    
    


    
      
        Direction of Flow:
      
       
    
    


    
      Delivery: Field to Demarc (Group 831)
and Beatrice North (Group 832)
    
    


    
      
        Capacity Impact: 
      
      Northern does not anticipate primary firm service will be
impacted for Beatrice North (Group 832) and Field to Demarc (Group 831).
    
    


    
      
        Revision:
      
       Capacity impacts for Field to Demarc (Group 831) and
Beatrice North (Group 832) have been updated for September 2025 and October
2025. 
    
    


    
      
        
      
    
    


    
      
        
          Field Area 
        
      
    
    


    
      
        Allocation Group(s)/Point(s): 
      
      Beaver North (Group 1025), Beaver C & Beaver North
(Group 1080), Brownfield North (Group 1022), Pampa North (Group 1023), Beaver C
System (Group 31) and Mitchell to Gaines (Group 825)
    
    


    
      
        Location: 
      
      Northern's compressor stations and mainline between
Florey, Texas, and Mullinville, Kansas
    
    


    
      
        Project Description:
      
       Station and pipeline maintenance
    
    


    
      
        Month:
      
       August 2025 through November 2025
    
    


    
      
        Direction of Flow:
      
       
    
    


    
      
        
Receipt: Beaver C System (Group 31) and Mitchell to Gaines (Group 825)
    
    


    
      Delivery: Beaver North (Group 1025),
Beaver C & Beaver North (Group 1080), Brownfield North (Group 1022) and
Pampa North (Group 1023)
    
    


    
      
        Capacity Impact: Northern anticipates
primary firm service will be impacted for Mitchell to Gaines (Group 825). 
      
      Northern does not anticipate primary firm service will be
impacted for Beaver C & Beaver North (Group 1080), Brownfield North (Group
1022) and Pampa North (Group 1023). Primary firm service will not be
impacted for Beaver North (Group 1025) and Beaver C System (Group 31).
    
    


    
      
        Revision:
      
       Capacity impacts for Beaver North (Group 1025) have
been updated for September 2025 through November 2025. Capacity impacts for
Beaver C System (Group 31) have been updated for October 2025 and November
2025. Capacity impacts for Beaver C & Beaver North (Group 1080), Brownfield
North (Group 1022) and Pampa North (Group 1023) have been updated for November
2025. 
    
    


    
      
        
      
    
    


    
      
        Allocation Group(s)/Point(s): 
      
      Spraberry 12-inch (Group 601), Spraberry 16-inch (Group
1112) and Spraberry Station (Group 602)
    
    


    
      
        Location: 
      
      Northern's compressor station in Midland, Texas
    
    


    
      
        Project Description:
      
       Station maintenance
    
    


    
      
        Month:
      
       August 2025 through November 2025
    
    


    
      
        Direction of Flow:
      
       
    
    


    
      
         Delivery:
Spraberry 12-inch (Group 601) and Spraberry 16-inch (Group 1112) 
    
    


    
      
        
Receipt: Spraberry Station (Group 602)
    
    


    
      
        Capacity Impact: 
      
      Northern does not anticipate primary firm service will be
impacted for Spraberry 12-inch (Group 601). Primary firm service will not be
impacted for Spraberry Station (Group 602) and Spraberry 16-inch (Group 1112). 
    
    


    
      
        Revision:
      
       Capacity impacts for Spraberry Station (Group 602)
have been updated for October 2025. 
    
    


    
      
        
      
    
    


    
      
        
      
    
    


    
      Please see 
      
        
          Operationally Available Capacityon
Northern's website for current flow information and the 
        
          Field Area Group Allocation Mapsand
        
          Market Area Group Allocation Mapsfor a list of impacted points.
      
    
    


    
      
    
    


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