TSP Name:                                  Northern Natural Gas Company
TSP:                                       784158214
Notice ID:                                 100157
Notice Type:                               Planned Service Outage
Subject:                                   PLANNED SERVICE OUTAGES - DECEMBER 2025 THROUGH FEBRUARY 2026
Location:                                  MARKET AND FIELD AREA
Critical:                                  N
Post Date/Time:                            12/23/2025 10:50 AM
Notice Status:                             Supersede
Prior Notice:                              098934
For Gas Day(s):                            12/23/2025 - 02/28/2026
Notice Effective Date/Time:                12/23/2025 10:50 AM
Notice End Date/Time:                      03/01/2026 08:59 AM
Required Response Indicator Description:   5-No response required

Notice Text: 


Northern has scheduled the following
service outages that will affect operating capacity within the months of December
2025 through February 2026. Please review the Planned Service Outage Summary for detailed information related to each
outage.



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



Field Area 

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

Location: Northern's compressor station in Midland, Texas

Project Description: Station maintenance

Month: December 2025 through February 2026

Direction of Flow: 

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

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 16-inch (Group 1112). 

Revision: Capacity impacts for Spraberry 12-inch (Group 601) and
Spraberry 16-inch (Group 1112) have been updated for January 2026. 





Please see Operationally
Available Capacity on Northern's website for current flow information and the Field
Area Group Allocation Maps andMarket
Area Group Allocation Maps for a list of impacted points.



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