TSP Name:                                  Northern Natural Gas Company
TSP:                                       784158214
Notice ID:                                 109347
Notice Type:                               Planned Service Outage
Subject:                                   PLANNED SERVICE OUTAGES - JULY 2026 THROUGH NOVEMBER 2026
Location:                                  MARKET AND FIELD AREA
Critical:                                  N
Post Date/Time:                            07/10/2026 09:20 AM
Notice Status:                             Supersede
Prior Notice:                              108719
For Gas Day(s):                            07/10/2026 - 11/30/2026
Notice Effective Date/Time:                07/10/2026 09:20 AM
Notice End Date/Time:                      12/01/2026 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 July 2026 through November 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.



Market Area

Allocation Group(s)/Point(s): Waterloo East (Group 773), Earlville East (Group 487), Galena East (Group 463) and Belleville East (Group 488)

Location: Northern's pipelines and compressor stations between
Waterloo, Iowa, and Belleville, Iowa

Project Description: Compressor station and pipeline maintenance

Month: July 2026 through October 2026

Direction of Flow: 

Delivery: Waterloo East (Group 773),
Earlville East (Group 487), Galena East (Group 463) and Belleville East (Group
488)

Capacity Impact: Northern does not anticipate primary firm service will be
impacted for Waterloo East (Group 773), Earlville East (Group 487), Galena East
(Group 463) and Belleville East (Group 488).

Revision: Capacity impacts for Waterloo
East (Group 773), Earlville East (Group 487), Galena East (Group 463) and
Belleville East (Group 488) have been updated for July 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.