Southern Star Central

TSP Name: Southern Star
Notice ID: 11203
Notice Type: Capacity Constraint
Status: Supersede
Post Date: 2026-08-12T14:33:52.833
Effective Begin: 2026-08-12T14:33:52.833
Effective End: None
Subject: Operational Capacity Reduction - Line Segment 490

Southern Star Central Gas Pipeline (Southern Star) discovered an anomaly on Line Segment 490 that will result in the following impacts, effective 08/12/2026 ID2 Cycle.
Capacity will be further reduced as follows:
55,000 dth/d Levant CS (location:445577)
There will be a capacity shut out on Line Segment 490 due to discoveries from recent ILI findings that is scheduled to Start on Tuesday August 18th, 2026, and return to service Saturday August 22nd, 2026.
Southern Star will provide any changes or updates to this posting as soon as they become available.
We appreciate your assistance during this maintenance and if you have any questions, please feel free to contact your Customer Service Representative.
Scott Warren Cell: 270.302.6433
Buster Ashley Cell: 270.314.1436

TSP Name: Southern Star
Notice ID: 11209
Notice Type: Capacity Constraint
Status: Supersede
Post Date: 2026-08-20T14:57:05.473
Effective Begin: 2026-08-20T14:57:05.473
Effective End: None
Subject: Operational Capacity Reduction - Line Segment 490 Update

Southern Star Central Gas Pipeline (Southern Star) discovered an anomaly on Line Segment 490 that will result in the following impacts, effective 08/20/2026 ID2 Cycle.
Capacity will be further reduced as follows:
110,000 dth/d Levant CS (location:445577)
There will be a capacity shut out on Line Segment 490 due to discoveries from recent ILI findings that is scheduled to Start on Tuesday August 18th, 2026, and return to service Saturday August 22nd, 2026.
Southern Star will provide any changes or updates to this posting as soon as they become available.
We appreciate your assistance during this maintenance and if you have any questions, please feel free to contact your Customer Service Representative.
Scott Warren Cell: 270.302.6433
Buster Ashley Cell: 270.314.1436

TSP Name: Southern Star
Notice ID: 11202
Notice Type: Planned Service Outage
Status: Supersede
Post Date: 2026-08-12T10:04:51.697
Effective Begin: 2026-08-12T10:04:51.697
Effective End: None
Subject: Planned Service Outage - August 12th, 2026

Southern Star’s 2026 “Planned Service Outage” has been posted to the “Notices” area under the Planned Service Outage category and includes upcoming planned maintenance scheduled for this year. Changes to this schedule are always possible and will be posted to the bulletin board as soon as firm dates are known.
Revised (1)
The Station maintenance at the Grabham CS has been extended due to an issue with materials. This maintenance is now due to return to service on August 18th, 2026.
The PSO Dashboard provides an interactive way to find and filter information related to the PSO items.
PSO Dashboard link:
Planned Service Outage
PSO PDF
:
PSO
Scott Warren                      Office: 270.852.4559                      Cell: 270.302.6433
Buster Ashley                     Office: 270.852.4546                      Cell: 270.314.1436

TSP Name: Southern Star
Notice ID: 11207
Notice Type: Planned Service Outage
Status: Supersede
Post Date: 2026-08-19T10:51:34.717
Effective Begin: 2026-08-19T10:51:34.717
Effective End: None
Subject: Planned Service Outage - August 19th, 2026

Southern Star’s 2026 “Planned Service Outage” has been posted to the “Notices” area under the Planned Service Outage category and includes upcoming planned maintenance scheduled for this year. Changes to this schedule are always possible and will be posted to the bulletin board as soon as firm dates are known.
Revised (1)
The Station ESD Testing at our Edmond CS has been updated with new dates. The maintenance will now take place October 27th, 2026, and return to service October 28th, 2026.
The PSO Dashboard provides an interactive way to find and filter information related to the PSO items.
PSO Dashboard link:
Planned Service Outage
PSO PDF
:
PSO
Scott Warren                      Office: 270.852.4559                      Cell: 270.302.6433
Buster Ashley                     Office: 270.852.4546                      Cell: 270.314.1436

TSP Name: Southern Star
Notice ID: 11212
Notice Type: Planned Service Outage
Status: Supersede
Post Date: 2026-08-27T09:53:47.187
Effective Begin: 2026-08-27T09:53:47.187
Effective End: None
Subject: Planned Service Outage - August 27th, 2026

Southern Star’s 2026 “Planned Service Outage” has been posted to the “Notices” area under the Planned Service Outage category and includes upcoming planned maintenance scheduled for this year. Changes to this schedule are always possible and will be posted to the bulletin board as soon as firm dates are known.
New (1)
The Station Maintenance at the Saginaw CS is scheduled to begin August 31st, 2026, and return to service September 10th, 2026. The following customers will be affected: 180,000 dth/d Saginaw CS (location 444550).
The PSO Dashboard provides an interactive way to find and filter information related to the PSO items.
PSO Dashboard link:
Planned Service Outage
PSO PDF
:
PSO
Scott Warren                      Office: 270.852.4559                      Cell: 270.302.6433
Buster Ashley                     Office: 270.852.4546                      Cell: 270.314.1436

TSP Name: Southern Star
Notice ID: 11215
Notice Type: Capacity Constraint
Status: Supersede
Post Date: 2026-09-08T09:08:21.73
Effective Begin: 2026-09-08T09:08:21.73
Effective End: None
Subject: Operational Capacity Reduction - Line Segment 385 Updated

Southern Star Central Gas Pipeline (Southern Star) has updated the capacity reduction on Line Segment 385 due to extreme heat and pipeline conditions. The following customers will be impacted: 60,000 dth/d NGPL Carter (location:17069) effective ID 1 cycle on 9/8/2026.
We appreciate your assistance during this matter and if you have any questions, please feel free to contact your Customer Service Representative.
Scott Warren Cell: 270.302.6433
Buster Ashley Cell: 270.314.1436
Easton Russelburg Cell: 270.302.0173

TSP Name: Southern Star
Notice ID: 11200
Notice Type: Gas Qual
Status: Terminate
Post Date: 2026-08-06T09:51:05.48
Effective Begin: 2026-08-06T09:51:05.48
Effective End: 2026-08-06T09:51:56.907
Subject: Dilworth (Location # 16750) - Capacity Reduction

August 6, 2026
Cheyenne Hub (Location # 17105) - Capacity Reduction
Capacity at (Location # 17105) will be reduced to 0 dth/d effective ID1 CYCLE gas day August 6, 2026, due to gas quality outside of Southern Star’s tariff limits, as referenced in Section 3 QUALITY of the General Terms and Conditions (GT&C) of our FERC Gas Tariff.
Capacity will remain reduced to 0 Dth/d until further notice.
Updates to this posting will be made as soon as information is available.
Thank you for your patience during this reduction.
If you have any questions, please feel free to contact one of Southern Star’s customer service representatives listed below.
Scott Warren                   Office: (270) 852-4559                  Cell: (270) 302-6433
Buster Ashley                  Office: (270) 852-4546                  Cell: (270) 314-1436
Scheduling Desk            Office: (855) 730-2926

TSP Name: Southern Star
Notice ID: 11199
Notice Type: Gas Qual
Status: Initiate
Post Date: 2026-08-06T09:50:09.91
Effective Begin: 2026-08-06T09:50:09.91
Effective End: None
Subject: Cheyenne Hub (17105) - Capacity Reduction

August 6, 2026
Cheyenne Hub (Location # 17105) - Capacity Reduction
Capacity at (Location # 17105) will be reduced to 0 dth/d effective ID1 CYCLE gas day August 6, 2026, due to gas quality outside of Southern Star’s tariff limits, as referenced in Section 3 QUALITY of the General Terms and Conditions (GT&C) of our FERC Gas Tariff.
Capacity will remain reduced to 0 Dth/d until further notice.
Updates to this posting will be made as soon as information is available.
Thank you for your patience during this reduction.
If you have any questions, please feel free to contact one of Southern Star’s customer service representatives listed below.
Scott Warren                   Office: (270) 852-4559                  Cell: (270) 302-6433
Buster Ashley                  Office: (270) 852-4546                  Cell: (270) 314-1436
Scheduling Desk            Office: (855) 730-2926

TSP Name: Southern Star
Notice ID: 11198
Notice Type: Gas Qual
Status: Initiate
Post Date: 2026-08-06T09:49:27.873
Effective Begin: 2026-08-06T09:50:09.73
Effective End: 2026-08-06T10:01:50.513
Subject: Dilworth (Location # 16750) - Capacity Reduction

August 6, 2026
Cheyenne Hub (Location # 17105) - Capacity Reduction
Capacity at (Location # 17105) will be reduced to 0 dth/d effective ID1 CYCLE gas day August 6, 2026, due to gas quality outside of Southern Star’s tariff limits, as referenced in Section 3 QUALITY of the General Terms and Conditions (GT&C) of our FERC Gas Tariff.
Capacity will remain reduced to 0 Dth/d until further notice.
Updates to this posting will be made as soon as information is available.
Thank you for your patience during this reduction.
If you have any questions, please feel free to contact one of Southern Star’s customer service representatives listed below.
Scott Warren                   Office: (270) 852-4559                  Cell: (270) 302-6433
Buster Ashley                  Office: (270) 852-4546                  Cell: (270) 314-1436
Scheduling Desk            Office: (855) 730-2926

TSP Name: Southern Star
Notice ID: 11197
Notice Type: Capacity Constraint
Status: Supersede
Post Date: 2026-08-06T09:06:39.687
Effective Begin: 2026-08-06T09:06:39.687
Effective End: None
Subject: Operational Capacity Reduction - Line Segment 490

Southern Star Central Gas Pipeline (Southern Star) discovered an anomaly on Line Segment 490 that will result in the following impacts, effective 08/07/2026, TIM cycle.
Capacity will be further reduced as follows:
110,000 dth/d Levant CS (location:445577)
Southern Star will provide any changes or updates to this posting as soon as they become available.
We appreciate your assistance during this maintenance and if you have any questions, please feel free to contact your Customer Service Representative.
Scott Warren Cell: 270.302.6433
Buster Ashley Cell: 270.314.1436

TSP Name: Southern Star
Notice ID: 11196
Notice Type: Capacity Constraint
Status: Initiate
Post Date: 2026-08-04T11:43:06.65
Effective Begin: 2026-08-04T11:43:06.65
Effective End: None
Subject: Operational Capacity Reduction - Line Segment 490

Southern Star Central Gas Pipeline (Southern Star) discovered an anomaly on Line Segment 490 that will result in the following impacts, effective 08/05/2026, TIM cycle.
Capacity will be reduced as follows:
145,000 dth/d Levant CS (location:445577)
Southern Star will provide any changes or updates to this posting as soon as they become available.
We appreciate your assistance during this maintenance and if you have any questions, please feel free to contact your Customer Service Representative.
Scott Warren Cell: 270.302.6433
Buster Ashley Cell: 270.314.1436

TSP Name: Southern Star
Notice ID: 11194
Notice Type: Planned Service Outage
Status: Supersede
Post Date: 2026-08-03T10:41:21.017
Effective Begin: 2026-08-03T10:41:21.017
Effective End: None
Subject: Planned Service Outage - August 3rd, 2026

Southern Star’s 2026 “Planned Service Outage” has been posted to the “Notices” area under the Planned Service Outage category and includes upcoming planned maintenance scheduled for this year. Changes to this schedule are always possible and will be posted to the bulletin board as soon as firm dates are known.
New (1)
The Station maintenance at the Edmond CS is scheduled to begin August 29th, 2026, and Return to service September 4th, 2026. The following customers will be affected: 50,000 dth/d Edmond CS w/o OK (location: 449003).
The Station maintenance at the Edmond CS is scheduled to begin September 29th, 2026, and Return to service October 1st, 2026. The following customers will be affected: 100,000 dth/d Edmond CS w/o OK (location:449003).
The PSO Dashboard provides an interactive way to find and filter information related to the PSO items.
PSO Dashboard link:
Planned Service Outage
PSO PDF
:
PSO
Scott Warren                      Office: 270.852.4559                      Cell: 270.302.6433
Buster Ashley                     Office: 270.852.4546                      Cell: 270.314.1436

TSP Name: Southern Star
Notice ID: 11192
Notice Type: Capacity Constraint
Status: Supersede
Post Date: 2026-07-30T10:13:50.607
Effective Begin: 2026-07-30T10:13:50.607
Effective End: None
Subject: Operational Capacity Reduction - Line Segment 385

Southern Star Central Gas Pipeline (Southern Star) is issuing a capacity reduction on Line Segment 385 due to extreme heat and pipeline conditions. The following customers will be impacted: 45,000 dth/d NGPL Carter (location:17069) effective Gas Day 1, 8/1/2026.
We appreciate your assistance during this matter and if you have any questions, please feel free to contact your Customer Service Representative.
Scott Warren Cell: 270.302.6433
Buster Ashley Cell: 270.314.1436
Easton Russelburg Cell: 270.302.0173

TSP Name: Southern Star
Notice ID: 11190
Notice Type: Planned Service Outage
Status: Supersede
Post Date: 2026-07-23T11:54:00.09
Effective Begin: 2026-07-23T11:54:00.09
Effective End: None
Subject: Planned Service Outage - July 23rd, 2026

Southern Star’s 2026 “Planned Service Outage” has been posted to the “Notices” area under the Planned Service Outage category and includes upcoming planned maintenance scheduled for this year. Changes to this schedule are always possible and will be posted to the bulletin board as soon as firm dates are known.
New (1)
The Station Maintenance at the Ratliff CS is scheduled to begin July 25th, 2026, and Return to service August 1st, 2026. The following Customers will be affected: 0 dth/d NGPL Carter (location: 17069).
The PSO Dashboard provides an interactive way to find and filter information related to the PSO items.
PSO Dashboard link:
Planned Service Outage
PSO PDF
:
PSO
Scott Warren                      Office: 270.852.4559                      Cell: 270.302.6433
Buster Ashley                     Office: 270.852.4546                      Cell: 270.314.1436

TSP Name: Southern Star
Notice ID: 11188
Notice Type: Planned Service Outage
Status: Supersede
Post Date: 2026-07-16T15:02:40.457
Effective Begin: 2026-07-16T15:02:40.457
Effective End: None
Subject: Planned Service Outage - July 16th, 2026

Southern Star’s 2026 “Planned Service Outage” has been posted to the “Notices” area under the Planned Service Outage category and includes upcoming planned maintenance scheduled for this year. Changes to this schedule are always possible and will be posted to the bulletin board as soon as firm dates are known.
New (1)
The Pipeline Integrity cleaning runs in the Blackwell CS will Begin August 5th, 2026, and return to service August 7th, 2026. The following customers will be affected: 0 dth/d Transwestern Canadian - Del. (location 168112), and 150,000 dth/d Canadian Blackwell @ Mutual Receipts (444582).
Revised (1)
The Station Maintenance in the Blackwell CS has been revised with new dates. The maintenance will now begin August 11th, 2026, and return to service August 13th, 2026. The following customers will be affected: 150,000 Canadian Blackwell (location:444580), 150,000 dth/d Canadian Blackwell @ Mutual Receipts (location:444582), and 0 dth/d Transwestern Net Delivery (location: 444587).
The PSO Dashboard provides an interactive way to find and filter information related to the PSO items.
PSO Dashboard link:
Planned Service Outage
PSO PDF
:
PSO
Scott Warren                      Office: 270.852.4559                      Cell: 270.302.6433
Buster Ashley                     Office: 270.852.4546                      Cell: 270.314.1436

TSP Name: Southern Star
Notice ID: 11185
Notice Type: Planned Service Outage
Status: Supersede
Post Date: 2026-07-13T12:46:48.02
Effective Begin: 2026-07-13T12:46:48.02
Effective End: None
Subject: Planned Service Outage - July 13th, 2026

Southern Star’s 2026 “Planned Service Outage” has been posted to the “Notices” area under the Planned Service Outage category and includes upcoming planned maintenance scheduled for this year. Changes to this schedule are always possible and will be posted to the bulletin board as soon as firm dates are known.
New (1)
The Station Maintenance in the Blackwell CS is scheduled to begin August 11th, 2026, and return to service August 12th, 2026. The following customers will be affected: 230,000 dth/d Canadian Blackwell (location:444580).
The PSO Dashboard provides an interactive way to find and filter information related to the PSO items.
PSO Dashboard link:
Planned Service Outage
PSO PDF
:
PSO
Scott Warren                      Office: 270.852.4559                      Cell: 270.302.6433
Buster Ashley                     Office: 270.852.4546                      Cell: 270.314.1436

TSP Name: Southern Star
Notice ID: 11183
Notice Type: Planned Service Outage
Status: Supersede
Post Date: 2026-07-09T15:53:02.397
Effective Begin: 2026-07-09T15:53:02.397
Effective End: None
Subject: Planned Service Outage - July 9th, 2026

Southern Star’s 2026 “Planned Service Outage” has been posted to the “Notices” area under the Planned Service Outage category and includes upcoming planned maintenance scheduled for this year. Changes to this schedule are always possible and will be posted to the bulletin board as soon as firm dates are known.
Complete (1)
The Station Maintenance in the Blackwell CS is complete. All locations have been returned to normal.
The PSO Dashboard provides an interactive way to find and filter information related to the PSO items.
PSO Dashboard link:
Planned Service Outage
PSO PDF
:
PSO
Scott Warren                      Office: 270.852.4559                      Cell: 270.302.6433
Buster Ashley                     Office: 270.852.4546                      Cell: 270.314.1436

TSP Name: Southern Star
Notice ID: 11182
Notice Type: Planned Service Outage
Status: Supersede
Post Date: 2026-07-09T12:07:40.287
Effective Begin: 2026-07-09T12:07:40.287
Effective End: None
Subject: Planned Service Outage - July 9th, 2026

Southern Star’s 2026 “Planned Service Outage” has been posted to the “Notices” area under the Planned Service Outage category and includes upcoming planned maintenance scheduled for this year. Changes to this schedule are always possible and will be posted to the bulletin board as soon as firm dates are known.
New (1)
The Station Maintenance in the Blackwell CS is scheduled to begin July 21st, 2026, and Return to Service July 24th, 2026. The following customers will be affected: 100,000 dth/d Edmond CS w/o OK (location 449003).
The PSO Dashboard provides an interactive way to find and filter information related to the PSO items.
PSO Dashboard link:
Planned Service Outage
PSO PDF
:
PSO
Scott Warren                      Office: 270.852.4559                      Cell: 270.302.6433
Buster Ashley                     Office: 270.852.4546                      Cell: 270.314.1436

TSP Name: Southern Star
Notice ID: 11181
Notice Type: Capacity Constraint
Status: Supersede
Post Date: 2026-07-09T11:39:30.24
Effective Begin: 2026-07-09T11:39:30.24
Effective End: None
Subject: Operational Capacity Reduction - Line Segment 490

Southern Star Central Gas Pipeline (Southern Star) has completed repairs on Line Segment 490, impacted capacities will return to 145,000 dth/d Levant CS (location:445577) effective 07/9/2026 ID1 Cycle.
We appreciate your assistance during this maintenance and if you have any questions, please feel free to contact your Customer Service Representative.
Scott Warren Cell: 270.302.6433
Buster Ashley Cell: 270.314.1436

TSP Name: Southern Star
Notice ID: 11179
Notice Type: Computer System Status
Status: Terminate
Post Date: 2026-07-01T11:27:34.74
Effective Begin: 2026-07-01T11:27:34.74
Effective End: None
Subject: Scheduling Cycle Closing - Resolved

This issue has been resolved and cycles are closed.

TSP Name: Southern Star
Notice ID: 11178
Notice Type: Computer System Status
Status: Terminate
Post Date: 2026-07-01T09:13:14.55
Effective Begin: 2026-07-01T09:13:14.55
Effective End: None
Subject: CSI Connectivity Issues Resolved

Connectivity issues have been resolved. Please restart your browser before attempting to log in. Thank you!

TSP Name: Southern Star
Notice ID: 11177
Notice Type: Computer System Status
Status: Supersede
Post Date: 2026-07-01T08:11:03.47
Effective Begin: 2026-07-01T08:11:03.47
Effective End: None
Subject: Scheduling Cycle Closing

We want to make you aware of an issue that is currently impacting our ability to close certain CSI cycles as scheduled.
Our team has identified the issue and is actively working to resolve it as quickly as possible. We understand the inconvenience this may cause and recognize the importance of timely and accurate cycle processing.
We are committed to addressing the situation, minimizing any impacts, and ensuring that all affected cycles are completed appropriately once the issue is resolved. We will continue to provide updates as more information becomes available.
Thank you for your patience and understanding as we work through this matter.

TSP Name: Southern Star
Notice ID: 11176
Notice Type: Computer System Status
Status: Initiate
Post Date: 2026-07-01T07:31:50.087
Effective Begin: 2026-07-01T07:31:50.087
Effective End: None
Subject: CSI Connectivity Issues

We are currently experiencing CSI connectivity issues. We will inform you when connectivity is restored.

TSP Name: Southern Star
Notice ID: 11175
Notice Type: Computer System Status
Status: Initiate
Post Date: 2026-06-30T20:05:49.573
Effective Begin: 2026-06-30T20:05:49.573
Effective End: None
Subject: Nomination Cycle Closing Evening 6/30/2026 

Due to system issues, we will be late closing.

TSP Name: Southern Star
Notice ID: 11174
Notice Type: Gas Qual
Status: Initiate
Post Date: 2026-06-30T14:44:20.2
Effective Begin: 2026-07-01T13:00:00
Effective End: None
Subject: Dilworth (Location # 16750) - Capacity Reduction

June 30, 2026
Dilworth Rms (Location # 16750) - Capacity Reduction
Capacity at Dilworth Rms (Location # 16750) will be reduced to 0 dth/d effective TIMELY CYCLE gas day July 1, 2026, due to gas quality outside of Southern Star’s tariff limits, as referenced in Section 3 QUALITY of the General Terms and Conditions (GT&C) of our FERC Gas Tariff.
Capacity will remain reduced to 0 Dth/d until further notice.
Updates to this posting will be made as soon as information is available.
Thank you for your patience during this reduction.
If you have any questions, please feel free to contact one of Southern Star’s customer service representatives listed below.
Scott Warren                   Office: (270) 852-4559                  Cell: (270) 302-6433
Buster Ashley                  Office: (270) 852-4546                  Cell: (270) 314-1436
Scheduling Desk            Office: (855) 730-2926

TSP Name: Southern Star
Notice ID: 11171
Notice Type: Planned Service Outage
Status: Supersede
Post Date: 2026-06-23T15:18:06.547
Effective Begin: 2026-06-23T15:18:06.547
Effective End: None
Subject: Planned Service Outage - June 23rd, 2026

Southern Star’s 2026 “Planned Service Outage” has been posted to the “Notices” area under the Planned Service Outage category and includes upcoming planned maintenance scheduled for this year. Changes to this schedule are always possible and will be posted to the bulletin board as soon as firm dates are known.
Completed (2)
The Line VH Reconfirmation in the Edmond CS area are completed. The following locations will return to normal for ID2 cycle: 18140 dth/d West Edmond (Location 444001).
The Line VH Tie are completed. The maintenance will return to normal ID2 on 6/23/2026. The following will return to normal for ID2 cycle: 100,000 dth/d Edmond CS w/o OK (Location 449003)
The PSO Dashboard provides an interactive way to find and filter information related to the PSO items.
PSO Dashboard link:
Planned Service Outage
PSO PDF
:
PSO
Scott Warren                      Office: 270.852.4559                      Cell: 270.302.6433
Buster Ashley                     Office: 270.852.4546                      Cell: 270.314.1436

TSP Name: Southern Star
Notice ID: 11167
Notice Type: Planned Service Outage
Status: Supersede
Post Date: 2026-06-18T09:27:23.12
Effective Begin: 2026-06-18T09:27:23.12
Effective End: None
Subject: Planned Service Outage - June 18th, 2026

Southern Star’s 2026 “Planned Service Outage” has been posted to the “Notices” area under the Planned Service Outage category and includes upcoming planned maintenance scheduled for this year. Changes to this schedule are always possible and will be posted to the bulletin board as soon as firm dates are known.
Revised (3)
The Line VH Reconfirmation in the Edmond CS area has been updated with new dates. This maintenance is currently ongoing and will now return to normal on 6/24/2026. The following locations are affected: 0 dth/d West Edmond (Location 444001).
The Line VH Tie ins have been rescheduled. The maintenance will begin June 23rd, 2026, and return to service June 24th, 2026. The following customers will be affected: 0 dth/d Edmond CS w/o OK (location 449003).
The Station painting in the Levant CS has been extended due to the anomaly digs. The maintenance is on going, and will return to service July 6th, 2026.
The PSO Dashboard provides an interactive way to find and filter information related to the PSO items.
PSO Dashboard link:
Planned Service Outage
PSO PDF
:
PSO
Scott Warren                      Office: 270.852.4559                      Cell: 270.302.6433
Buster Ashley                     Office: 270.852.4546                      Cell: 270.314.1436

TSP Name: Southern Star
Notice ID: 11166
Notice Type: Planned Service Outage
Status: Supersede
Post Date: 2026-06-17T17:04:19.73
Effective Begin: 2026-06-17T17:04:19.73
Effective End: None
Subject: Planned Service Outage - June 17th, 2026

Southern Star’s 2026 “Planned Service Outage” has been posted to the “Notices” area under the Planned Service Outage category and includes upcoming planned maintenance scheduled for this year. Changes to this schedule are always possible and will be posted to the bulletin board as soon as firm dates are known.
Revised (1)
The Line VH Tie ins and Line VH Reconfirmation in the Edmond CS area has been extended by 1 day. This maintenance is currently ongoing and will now return to normal on 6/19/2026. The following locations are affected: 0 dth/d Edmond CS w/o OK (Location 449003) & 0 dth/d West Edmond (Location 444001).
The PSO Dashboard provides an interactive way to find and filter information related to the PSO items.
PSO Dashboard link:
Planned Service Outage
PSO PDF
:
PSO
Scott Warren                      Office: 270.852.4559                      Cell: 270.302.6433
Buster Ashley                     Office: 270.852.4546                      Cell: 270.314.1436

TSP Name: Southern Star
Notice ID: 11164
Notice Type: Capacity Constraint
Status: Initiate
Post Date: 2026-06-16T12:33:58.61
Effective Begin: 2026-06-16T12:33:58.61
Effective End: None
Subject: Operational Capacity Reduction - Line Segment 490

Southern Star Central Gas Pipeline (Southern Star) discovered an anomaly on Line Segment 490 that will result in the following impacts, effective 06/17/2026, TIM cycle.
Capacity will be reduced as follows:
110,000 dth/d Levant CS (location:445577)
Southern Star will provide any changes or updates to this posting as soon as they become available.
We appreciate your assistance during this maintenance and if you have any questions, please feel free to contact your Customer Service Representative.
Scott Warren Cell: 270.302.6433
Buster Ashley Cell: 270.314.1436

TSP Name: Southern Star
Notice ID: 11163
Notice Type: Planned Service Outage
Status: Supersede
Post Date: 2026-06-16T10:26:33.36
Effective Begin: 2026-06-16T10:26:33.36
Effective End: None
Subject: Planned Service Outage - June 16th, 2026

Southern Star’s 2026 “Planned Service Outage” has been posted to the “Notices” area under the Planned Service Outage category and includes upcoming planned maintenance scheduled for this year. Changes to this schedule are always possible and will be posted to the bulletin board as soon as firm dates are known.
Completed (1)
The Peculiar Station ESD Test was completed early. The following locations have been returned to normal: 130,000 Dth/d Sedalia @ Ottawa (Location 44250.)
The PSO Dashboard provides an interactive way to find and filter information related to the PSO items.
PSO Dashboard link:
Planned Service Outage
PSO PDF
:
PSO
Scott Warren                      Office: 270.852.4559                      Cell: 270.302.6433
Buster Ashley                     Office: 270.852.4546                      Cell: 270.314.1436

TSP Name: Southern Star
Notice ID: 11162
Notice Type: Capacity Constraint
Status: Initiate
Post Date: 2026-06-15T13:19:16.98
Effective Begin: 2026-06-15T13:19:16.98
Effective End: None
Subject: Operational Capacity Reduction - Line Segment 385

Southern Star Central Gas Pipeline (Southern Star) discovered an anomaly on Line Segment 385 that will result in the following impacts, effective 06/16/2026, TIM cycle.
Capacity will be reduced as follows:
80,000 dth/d Edmond CS w/o OK (location:449003)
45,000 dth/d NGPL Carter (location:17069)
Southern Star will provide any changes or updates to this posting as soon as they become available.
We appreciate your assistance during this maintenance and if you have any questions, please feel free to contact your Customer Service Representative.
Scott Warren Cell: 270.302.6433
Buster Ashley Cell: 270.314.1436

TSP Name: Southern Star
Notice ID: 11161
Notice Type: Planned Service Outage
Status: Supersede
Post Date: 2026-06-15T08:43:16.05
Effective Begin: 2026-06-15T08:43:16.05
Effective End: None
Subject: Planned Service Outage - June 15th, 2026

Southern Star’s 2026 “Planned Service Outage” has been posted to the “Notices” area under the Planned Service Outage category and includes upcoming planned maintenance scheduled for this year. Changes to this schedule are always possible and will be posted to the bulletin board as soon as firm dates are known.
New (1)
The station maintenance at our Blackwell CS is scheduled to begin June 18th, 2026, and return to service July 10th, 2026. The following customers will be affected: 100,000 dth/d Edmond CS w/o OKC (location:449003).
The PSO Dashboard provides an interactive way to find and filter information related to the PSO items.
PSO Dashboard link:
Planned Service Outage
PSO PDF
:
PSO
Scott Warren                      Office: 270.852.4559                      Cell: 270.302.6433
Buster Ashley                     Office: 270.852.4546                      Cell: 270.314.1436

TSP Name: Southern Star
Notice ID: 11159
Notice Type: Computer System Status
Status: Terminate
Post Date: 2026-06-09T09:41:01.263
Effective Begin: 2026-06-09T09:41:01.263
Effective End: None
Subject: CSI Connectivity Issues

CSI connectivity issues have been resolved. Thank you for your patience.

TSP Name: Southern Star
Notice ID: 11158
Notice Type: Computer System Status
Status: Initiate
Post Date: 2026-06-09T08:27:22.913
Effective Begin: 2026-06-09T08:27:22.913
Effective End: None
Subject: CSI Connectivity Issues

We are currently experiencing CSI connectivity issues. We will inform you when connectivity is restored.

TSP Name: Southern Star
Notice ID: 11156
Notice Type: Planned Service Outage
Status: Supersede
Post Date: 2026-06-04T14:19:17.42
Effective Begin: 2026-06-04T14:19:17.42
Effective End: None
Subject: Planned Service Outage - June 4th, 2026

Southern Star’s 2026 “Planned Service Outage” has been posted to the “Notices” area under the Planned Service Outage category and includes upcoming planned maintenance scheduled for this year. Changes to this schedule are always possible and will be posted to the bulletin board as soon as firm dates are known.
Revised (2)
The Station Maintenance at our Wakita CS has been broken up into 2 separate PSO's along with new dates. They are indicated as follows:
The Station Maintenance at our Wakita CS is scheduled to begin July 28th, 2026, and return to service July 31st, 2026. The following customers will be affected: 0 dth/d Salt Plains Net Delivery (location:443156).
The Station Maintenance at our Wakita CS is scheduled to begin August 10th, 2026, and return to service August 14th, 2026. The following customers will be affected: 0 dth/d Salt Plains Net Delivery (location:443156), and 0 dth/d Salt Plains net Receipt (location: 443155).
The PSO Dashboard provides an interactive way to find and filter information related to the PSO items.
PSO Dashboard link:
Planned Service Outage
PSO PDF
:
PSO
Scott Warren                      Office: 270.852.4559                      Cell: 270.302.6433
Buster Ashley                     Office: 270.852.4546                      Cell: 270.314.1436

TSP Name: Southern Star
Notice ID: 11155
Notice Type: Planned Service Outage
Status: Supersede
Post Date: 2026-05-29T07:32:04.367
Effective Begin: 2026-05-29T07:32:04.367
Effective End: None
Subject: Planned Service Outage - May 29th, 2026

Southern Star’s 2026 “Planned Service Outage” has been posted to the “Notices” area under the Planned Service Outage category and includes upcoming planned maintenance scheduled for this year. Changes to this schedule are always possible and will be posted to the bulletin board as soon as firm dates are known.
New (2)
The Pipeline Integrity Cleaning run in the Mutual CS is scheduled to begin June 10
th
, 2026, and return to service June 11
th
, 2026. The following customers will be affected: 65,000 dth/d Canadian Blackwell @ Hemphill Receipts (location 444581), and 0 dth/d TransWestern Net Delivery (location: 444587).
The Pipeline Integrity Cleaning Run in the Alva CS is scheduled to begin June 9
th
, 2026 and Return to service June 10
th
, 2026. The following customers will be affected: 125,000 dth/d Straight Blackwell (location: 443150), 0 dth/d Salt Plains Net Receipt (location: 443155), and 0 dth/d Salt Plains Net Delivery (location: 443156).
The PSO Dashboard provides an interactive way to find and filter information related to the PSO items.
PSO Dashboard link:
Planned Service Outage
PSO PDF
:
PSO
Scott Warren                      Office: 270.852.4559                      Cell: 270.302.6433
Buster Ashley                     Office: 270.852.4546                      Cell: 270.314.1436

TSP Name: Southern Star
Notice ID: 11153
Notice Type: Planned Service Outage
Status: Supersede
Post Date: 2026-05-26T14:32:56.467
Effective Begin: 2026-05-26T14:32:56.467
Effective End: None
Subject: Planned Service Outage - May 26th, 2026

Southern Star’s 2026 “Planned Service Outage” has been posted to the “Notices” area under the Planned Service Outage category and includes upcoming planned maintenance scheduled for this year. Changes to this schedule are always possible and will be posted to the bulletin board as soon as firm dates are known.
New (1)
The Storage field maintenance at our Webb CS is scheduled to begin June 2nd, 2026, and return to service June 5th, 2026. The following customers will be affected: 600,000 dth/d Blackwell CS (location: 445511).
The PSO Dashboard provides an interactive way to find and filter information related to the PSO items.
PSO Dashboard link:
Planned Service Outage
PSO PDF
:
PSO
Scott Warren                      Office: 270.852.4559                      Cell: 270.302.6433
Buster Ashley                     Office: 270.852.4546                      Cell: 270.314.1436

TSP Name: Southern Star
Notice ID: 11152
Notice Type: Planned Service Outage
Status: Supersede
Post Date: 2026-05-26T10:42:38.79
Effective Begin: 2026-05-26T10:42:38.79
Effective End: None
Subject: Planned Service Outage - May 26th, 2026

Southern Star’s 2026 “Planned Service Outage” has been posted to the “Notices” area under the Planned Service Outage category and includes upcoming planned maintenance scheduled for this year. Changes to this schedule are always possible and will be posted to the bulletin board as soon as firm dates are known.
New (1)
The station ESD Testing at our Peculiar Station is scheduled for June 16th, 2026, and will return to service June 17th, 2026. The following customers will be affected: 130,000 dth/d Sedalia @ Ottawa (location:442350).
The PSO Dashboard provides an interactive way to find and filter information related to the PSO items.
PSO Dashboard link:
Planned Service Outage
PSO PDF
:
PSO
Scott Warren                      Office: 270.852.4559                      Cell: 270.302.6433
Buster Ashley                     Office: 270.852.4546                      Cell: 270.314.1436

TSP Name: Southern Star
Notice ID: 11151
Notice Type: Planned Service Outage
Status: Supersede
Post Date: 2026-05-26T09:15:26.7
Effective Begin: 2026-05-26T09:15:26.7
Effective End: None
Subject: Planned Service Outage - May 26th, 2026

Southern Star’s 2026 “Planned Service Outage” has been posted to the “Notices” area under the Planned Service Outage category and includes upcoming planned maintenance scheduled for this year. Changes to this schedule are always possible and will be posted to the bulletin board as soon as firm dates are known.
Complete (1)
The Ratliff Station maintenance has been completed. All locations have been returned to normal.
The PSO Dashboard provides an interactive way to find and filter information related to the PSO items.
PSO Dashboard link:
Planned Service Outage
PSO PDF
:
PSO
Scott Warren                      Office: 270.852.4559                      Cell: 270.302.6433
Buster Ashley                     Office: 270.852.4546                      Cell: 270.314.1436

TSP Name: Southern Star
Notice ID: 11150
Notice Type: Planned Service Outage
Status: Supersede
Post Date: 2026-05-22T07:20:11.763
Effective Begin: 2026-05-22T07:20:11.763
Effective End: None
Subject: Planned Service Outage - May 22nd, 2026

Southern Star’s 2026 “Planned Service Outage” has been posted to the “Notices” area under the Planned Service Outage category and includes upcoming planned maintenance scheduled for this year. Changes to this schedule are always possible and will be posted to the bulletin board as soon as firm dates are known.
Revised (1)
The Station Maintenance at the Ratliff CS is being extended. This maintenance is now scheduled to return to service May 28th, 2026.
Complete (1)
The Saginaw Unit maintenance has been completed. All locations have been returned to normal.
The PSO Dashboard provides an interactive way to find and filter information related to the PSO items.
PSO Dashboard link:
Planned Service Outage
PSO PDF
:
PSO
Scott Warren                      Office: 270.852.4559                      Cell: 270.302.6433
Buster Ashley                     Office: 270.852.4546                      Cell: 270.314.1436

TSP Name: Southern Star
Notice ID: 11148
Notice Type: Planned Service Outage
Status: Supersede
Post Date: 2026-05-20T10:10:21.577
Effective Begin: 2026-05-20T10:10:21.577
Effective End: None
Subject: Planned Service Outage - May 20th, 2026

Southern Star’s 2026 “Planned Service Outage” has been posted to the “Notices” area under the Planned Service Outage category and includes upcoming planned maintenance scheduled for this year. Changes to this schedule are always possible and will be posted to the bulletin board as soon as firm dates are known.
New (1)
The Station maintenance at our Wakita CS is scheduled to begin July 28th, 2026, and return to service August 14th, 2026. The following customers will be affected: 0 dth/d Salt Plains Net Delivery (location:443156), and 0 dth/d Salt Plains Storage (withdrawal) (location: 16376).
The PSO Dashboard provides an interactive way to find and filter information related to the PSO items.
PSO Dashboard link:
Planned Service Outage
PSO PDF
:
PSO
Scott Warren                      Office: 270.852.4559                      Cell: 270.302.6433
Buster Ashley                     Office: 270.852.4546                      Cell: 270.314.1436

TSP Name: Southern Star
Notice ID: 11147
Notice Type: Planned Service Outage
Status: Supersede
Post Date: 2026-05-19T14:52:27.953
Effective Begin: 2026-05-19T14:52:27.953
Effective End: None
Subject: Planned Service Outage - May 19th, 2026

Southern Star’s 2026 “Planned Service Outage” has been posted to the “Notices” area under the Planned Service Outage category and includes upcoming planned maintenance scheduled for this year. Changes to this schedule are always possible and will be posted to the bulletin board as soon as firm dates are known.
Complete (1)
The maintenance at our Ottawa CS is complete. The capacities at West Garder will be back to normal for 5/20/2026.
The PSO Dashboard provides an interactive way to find and filter information related to the PSO items.
PSO Dashboard link:
Planned Service Outage
PSO PDF
:
PSO
Scott Warren                      Office: 270.852.4559                      Cell: 270.302.6433
Buster Ashley                     Office: 270.852.4546                      Cell: 270.314.1436

TSP Name: Southern Star
Notice ID: 11146
Notice Type: Planned Service Outage
Status: Supersede
Post Date: 2026-05-19T07:15:19.25
Effective Begin: 2026-05-19T07:15:19.25
Effective End: None
Subject: Planned Service Outage - May 19th, 2026

Southern Star’s 2026 “Planned Service Outage” has been posted to the “Notices” area under the Planned Service Outage category and includes upcoming planned maintenance scheduled for this year. Changes to this schedule are always possible and will be posted to the bulletin board as soon as firm dates are known.
Revised (1)
The maintenance at NGPL Carter has been extended. The maintenance is scheduled to return May 23rd, 2026. The following location has been updated: 35,000 dth/d NGPL Carter (location:17069).
The PSO Dashboard provides an interactive way to find and filter information related to the PSO items.
PSO Dashboard link:
Planned Service Outage
PSO PDF
:
PSO
Scott Warren                      Office: 270.852.4559                      Cell: 270.302.6433
Buster Ashley                     Office: 270.852.4546                      Cell: 270.314.1436

TSP Name: Southern Star
Notice ID: 11145
Notice Type: Planned Service Outage
Status: Supersede
Post Date: 2026-05-15T16:00:51.563
Effective Begin: 2026-05-15T16:00:51.563
Effective End: None
Subject: Planned Service Outage - May 15th, 2026

Southern Star’s 2026 “Planned Service Outage” has been posted to the “Notices” area under the Planned Service Outage category and includes upcoming planned maintenance scheduled for this year. Changes to this schedule are always possible and will be posted to the bulletin board as soon as firm dates are known.
NEW (1)
Unit maintenance at Ratliff Compressor Station impacting capacity to Location 17069 NGPL Carter, capacity reduced to 40,000 Dth/d effective Timely cycle May 16, 2026
The PSO Dashboard provides an interactive way to find and filter information related to the PSO items.
PSO Dashboard link:
Planned Service Outage
PSO PDF
:
PSO
Scott Warren                      Office: 270.852.4559                      Cell: 270.302.6433
Buster Ashley                     Office: 270.852.4546                      Cell: 270.314.1436

TSP Name: Southern Star
Notice ID: 11143
Notice Type: Gas Qual
Status: Terminate
Post Date: 2026-05-14T09:06:57.66
Effective Begin: 2026-05-14T09:06:57.66
Effective End: None
Subject: River Rock – Ft Scott (Location # 16908) - Capacity Reduction

May 13, 2026
River Rock - Ft Scott (Location # 16908) - Capacity Reduction
Capacity at River Rock – Ft Scott (Location # 16908) will be reduced to 0 dth/d effective TIMELY CYCLE gas day May 13
th
, 2026, due to gas quality outside of Southern Star’s tariff limits, as referenced in Section 3 QUALITY of the General Terms and Conditions (GT&C) of our FERC Gas Tariff.
Capacity will remain reduced to 0 Dth/d until further notice.
Updates to this posting will be made as soon as information is available.
Thank you for your patience during this reduction.
If you have any questions, please feel free to contact one of Southern Star’s customer service representatives listed below.
Scott Warren                   Office: (270) 852-4559                  Cell: (270) 302-6433
Buster Ashley                   Office: (270) 852-4546                   Cell: (270) 314-1436
Scheduling Desk            Office: (855) 730-2926

TSP Name: Southern Star
Notice ID: 11142
Notice Type: Gas Qual
Status: Initiate
Post Date: 2026-05-14T09:06:30.877
Effective Begin: 2026-05-14T09:08:00
Effective End: None
Subject: TERMINATED: River Rock – Ft Scott (Location # 16908) - Capacity Reduction

May 13, 2026
River Rock - Ft Scott (Location # 16908) - Capacity Reduction
Capacity at River Rock – Ft Scott (Location # 16908) will be reduced to 0 dth/d effective TIMELY CYCLE gas day May 13
th
, 2026, due to gas quality outside of Southern Star’s tariff limits, as referenced in Section 3 QUALITY of the General Terms and Conditions (GT&C) of our FERC Gas Tariff.
Capacity will remain reduced to 0 Dth/d until further notice.
Updates to this posting will be made as soon as information is available.
Thank you for your patience during this reduction.
If you have any questions, please feel free to contact one of Southern Star’s customer service representatives listed below.
Scott Warren                   Office: (270) 852-4559                  Cell: (270) 302-6433
Buster Ashley                   Office: (270) 852-4546                   Cell: (270) 314-1436
Scheduling Desk            Office: (855) 730-2926

TSP Name: Southern Star
Notice ID: 11141
Notice Type: Planned Service Outage
Status: Supersede
Post Date: 2026-05-13T16:49:42.387
Effective Begin: 2026-05-13T16:49:42.387
Effective End: None
Subject: Planned Service Outage - May 13th, 2026

Southern Star’s 2026 “Planned Service Outage” has been posted to the “Notices” area under the Planned Service Outage category and includes upcoming planned maintenance scheduled for this year. Changes to this schedule are always possible and will be posted to the bulletin board as soon as firm dates are known.
NEW (1)
The Line Q outage for test section 3 has been completed. All Capacities have been returned to normal.
The PSO Dashboard provides an interactive way to find and filter information related to the PSO items.
PSO Dashboard link:
Planned Service Outage
PSO PDF
:
PSO
Scott Warren                      Office: 270.852.4559                      Cell: 270.302.6433
Buster Ashley                     Office: 270.852.4546                      Cell: 270.314.1436

TSP Name: Southern Star
Notice ID: 11140
Notice Type: Planned Service Outage
Status: Supersede
Post Date: 2026-05-13T09:24:02.093
Effective Begin: 2026-05-13T09:24:02.093
Effective End: None
Subject: Planned Service Outage - May 13th, 2026

Southern Star’s 2026 “Planned Service Outage” has been posted to the “Notices” area under the Planned Service Outage category and includes upcoming planned maintenance scheduled for this year. Changes to this schedule are always possible and will be posted to the bulletin board as soon as firm dates are known.
NEW (3)
The Station painting at our Saginaw CS is scheduled to begin June 2
nd
, 2026, and return to service June 12
th
, 2026. The following customers will be affected: 200,000 dth/d Saginaw CS (location:444550).
The Pipeline Replacement at the Grabham CS is scheduled to begin August 10
th
, 2026, and Return to service August 14
th
, 2026. The following customers will be affected: 40,000 dth/d Jane Net Delivery (location: 444230).
The Pipeline Replacement at our Edmond CS is scheduled to begin August 25
th
, 2026 and Return to service August 28
th
, 2026. The following customers will be affected: 0 dth/d Blue Mountain- Chisolm Trail III (location: 17067), and 55,000 dth/d Cement Lateral Delivery (location: 443400).
The PSO Dashboard provides an interactive way to find and filter information related to the PSO items.
PSO Dashboard link:
Planned Service Outage
PSO PDF
:
PSO
Scott Warren                      Office: 270.852.4559                      Cell: 270.302.6433
Buster Ashley                     Office: 270.852.4546                      Cell: 270.314.1436

TSP Name: Southern Star
Notice ID: 11139
Notice Type: Gas Qual
Status: Initiate
Post Date: 2026-05-12T13:18:37.137
Effective Begin: 2026-05-13T09:00:00
Effective End: None
Subject: River Rock – Ft Scott (Location # 16908) - Capacity Reduction

May 13, 2026
River Rock - Ft Scott (Location # 16908) - Capacity Reduction
Capacity at River Rock – Ft Scott (Location # 16908) will be reduced to 0 dth/d effective TIMELY CYCLE gas day May 13
th
, 2026, due to gas quality outside of Southern Star’s tariff limits, as referenced in Section 3 QUALITY of the General Terms and Conditions (GT&C) of our FERC Gas Tariff.
Capacity will remain reduced to 0 Dth/d until further notice.
Updates to this posting will be made as soon as information is available.
Thank you for your patience during this reduction.
If you have any questions, please feel free to contact one of Southern Star’s customer service representatives listed below.
Scott Warren                   Office: (270) 852-4559                  Cell: (270) 302-6433
Buster Ashley                   Office: (270) 852-4546                   Cell: (270) 314-1436
Scheduling Desk            Office: (855) 730-2926

TSP Name: Southern Star
Notice ID: 11206
Notice Type: Planned Service Outage
Status: Supersede
Post Date: 2026-08-17T07:58:26.833
Effective Begin: 2026-08-17T07:58:26.833
Effective End: None
Subject: Planned Service Outage - August 17th, 2026

Southern Star’s 2026 “Planned Service Outage” has been posted to the “Notices” area under the Planned Service Outage category and includes upcoming planned maintenance scheduled for this year. Changes to this schedule are always possible and will be posted to the bulletin board as soon as firm dates are known.
Complete (1)
The Station maintenance at the Grabham CS is complete. All locations have been returned to normal.
The PSO Dashboard provides an interactive way to find and filter information related to the PSO items.
PSO Dashboard link:
Planned Service Outage
PSO PDF
:
PSO
Scott Warren                      Office: 270.852.4559                      Cell: 270.302.6433
Buster Ashley                     Office: 270.852.4546                      Cell: 270.314.1436