Outage Impact Report

Southern Natural Gas 11h ago

All information here is provided as a service and information is not guaranteed to be accurate. PipeRiv is not responsible for any incorrect information.

TSP/TSP Name: 6900518-SOUTHERN NATURAL GAS CO. Critical: Y Notice Type Desc (1): MAINTENANCE Notice Type Desc (2): MAINTENANCE Notice Eff Date/Time: 11/12/2026 3:43:33PM Notice End Date/Time: 11/13/2026 9:00:00am Post Date/Time: 11/12/2026 3:43:33 PM Notice ID: 712642 Reqrd Rsp: 1 Rsp Date/Time: 11/12/2026 12:00:00 AM Notice Stat Desc: INITIATE Prior Notice: Subject: Outage Impact Report

Notice Text:

-Restrictions to Primary In-Path transportation services may be necessary.

SNG - Outage Impact Report

-Restrictions to In-Path transportation services may be necessary.

Seven Day Forecast (updated 11/12/26)

-Restrictions to Interruptible and Out of Path transportation services may be necessary.

-No anticipated impact to transportation services.

Station / Seg

Est Nominal Design Capacity (Thousand Dth)

Monday (11/16)

Tuesday (11/17)

Wednesday (11/18)

Thursday (11/19)

Friday (11/20)

Saturday (11/21)

Sunday (11/22)

Primary Outage(s) that may Impact Throughput

Est. Operational Capacity (Operational Impact) - Thousand Dth

Onward (segment 30)

209

209

Duncanville Lateral (segment 90)

Dearmanville (segment 150)

355

355

White Castle (segment 340)

798

738

(60)

738

(60)

738

(60)

738

(60)

738

(60)

798

Shadyside Compressor Station: Scheduled Unit Maintenance Proj-5000-5 (10/14/2026 - 11/20/2026)

LA West Leg (segment 350)

798

733

(65)

733

(65)

733

(65)

733

(65)

733

(65)

733

(65)

733

(65)

Franklinton Compressor Station: Scheduled Unit Maintenance Proj-512215 (4/27/2026 - 11/22/2026)

Sesh (segment 380)

507

507

Gwinville (segment 400)

234

234

Bay Springs (segment 420)

1,817

1702

(115)

1702

(115)

1702

(115)

1702

(115)

1702

(115)

1702

(115)

1702

(115)

Bay Springs Compressor Station: Scheduled Unit Maintenance Proj-5216-1 (7/8/2025 - 3/31/2027)

Enterprise (segment 430)

2,450

2195

(255)

2195

(255)

2195

(255)

2195

(255)

2195

(255)

2195

(255)

2195

(255)

Enterprise Compressor Station: Scheduled Unit Maintenance Proj-5222-15 (8/3/2026 - 11/29/2026)

South Main line east of Enterprise: Unscheduled Pipeline Maintenance - CAO (5/30/2026 - 3/31/2027)

Ellerslie (segment 490)

1,663

1633

(30)

1633

(30)

1633

(30)

1633

(30)

1633

(30)

1633

(30)

1633

(30)

Ellerslie Compressor Station: Scheduled Unit Maintenance Proj-5267-4 (11/9/2026 - 12/3/2026)

South Atlanta (segment 510)

537

537

Thomaston East (segment 530)

900

900

East/South Wrens (segment 560)

724

629

(95)

724

Wrens Compressor Station: Scheduled Unit Maintenance Proj-5288-4 (11/16/2026)

South Georgia (segment 650)

143

143

This document is updated on a weekly basis and outage schedules/impacts are subject to change as the week progresses. Dates posted on DART should be deemed correct in the event of conflicts between DART posted dates and dates on this report.

The impacts sheet are based on steady-state hydraulic models assuming recent operating flows, conditions, and various unit outages.

						-Restrictions to Primary In-Path transportation services may be necessary.
	SNG - Outage Impact Report					-Restrictions to In-Path transportation services may be necessary.
	November 2026 (updated 11/12/26)					-Restrictions to Interruptible and Out of Path transportation services may be necessary.
-No anticipated impact to transportation services.
Station / Seg	Est Nominal Design Capacity (Thousand Dth)	Week 1 (11/2 - 11/8)	Week 2 (11/9 - 11/15)	Week 3 (11/16 - 11/22)	Week 4 (11/23 - 11/29)	Primary Outage(s)
Station / Seg		Est. Operational Capacity (Operational Impact) - Thousand Dth				Primary Outage(s)
Onward (segment 30)	209				209
Duncanville Lateral (segment 90)	36				36
Dearmanville (segment 150)	355				355
						White Castle Compressor Station: Scheduled Unit Maintenance, Proj-5010-10 (11/23/2026 - 12/6/2026)
White Castle (segment 340)	798				728 (70)
Sesh (segment 380)	507				507
Gwinville (segment 400)	234				234
						Bay Springs Compressor Station: Scheduled Unit Maintenance, Proj-5216-1 (7/8/2025 - 3/31/2027)
Bay Springs (segment 420)	1,817				1702 (115)
						Enterprise Compressor Station: Scheduled Unit Maintenance, Proj-5222-15 (8/3/2026 - 11/29/2026)
Enterprise (segment 430)	2,450				2195 (255)	South Main line east of Enterprise: Unscheduled Pipeline Maintenance - CAO (5/30/2026 - 3/31/2027)
						Ellerslie Compressor Station: Scheduled Unit Maintenance, Proj-5267-4 (11/9/2026 - 12/3/2026)
Ellerslie (segment 490)	1,663				1633 (30)
South Atlanta (segment 510)	537				537
Thomaston East (segment 530)	900				900
South Georgia (segment 650)	143				143
This document is updated on a weekly basis and outage schedules/impacts are subject to change as the week progresses. Dates posted on DART should be deemed correct in the event of conflicts between DART posted dates and dates on this report. The impacts sheet are based on steady-state hydraulic models assuming recent operating flows, conditions, and various unit outages.

-Restrictions to Primary In-Path transportation services may be necessary.

SNG - Outage Impact Report

-Restrictions to In-Path transportation services may be necessary.

December 2026 (updated 11/12/26)

-Restrictions to Interruptible and Out of Path transportation services may be necessary.

-No anticipated impact to transportation services.

Station / Seg

Est Nominal Design Capacity (Thousand Dth)

Week 1 (11/30 - 12/6)

Week 2 (12/7 - 12/13)

Week 3 (12/14 - 12/20)

Week 4 (12/21 - 12/27)

Week 5 (12/28 - 1/3)

Primary Outage(s)

Est. Operational Capacity (Operational Impact) - Thousand Dth

Onward (segment 30)

209

209

Duncanville Lateral (segment 90)

Dearmanville (segment 150)

355

355

White Castle (segment 340)

798

728

(70)

733

(65)

738

(60)

798

White Castle Compressor Station: Scheduled Unit Maintenance, Proj-5010-10 (11/23/2026 - 12/6/2026) White Castle Compressor Station: Scheduled Unit Maintenance, Proj-5010-6 (12/14/2026 - 12/18/2026) White Castle Compressor Station: Scheduled Unit Maintenance, Proj-5010-7 (12/7/2026 - 12/11/2026)

Sesh (segment 380)

500

500

Gwinville (segment 400)

234

234

Bay Springs (segment 420)

1,817

1702

(115)

1702

(115)

1702

(115)

1702

(115)

1702

(115)

Bay Springs Compressor Station: Scheduled Unit Maintenance, Proj-5216-1 (7/8/2025 - 3/31/2027)

Enterprise (segment 430)

2,450

2400

(50)

2325

(125)

2400

(50)

2400

(50)

2400

(50)

Enterprise Compressor Station: Scheduled Unit Maintenance, Proj-5222-16 (12/7/2026 - 12/9/2026) South Main line east of Enterprise: Unscheduled Pipeline Maintenance - CAO (5/30/2026 - 3/31/2027)

Ellerslie (segment 490)

1,663

1633

(30)

1,663

Ellerslie Compressor Station: Scheduled Unit Maintenance, Proj-5267-4 (11/9/2026 - 12/3/2026)

South Atlanta (segment 510)

537

537

Thomaston East (segment 530)

900

900

South Georgia (segment 650)

143

143

This document is updated on a weekly basis and outage schedules/impacts are subject to change as the week progresses.

Dates posted on DART should be deemed correct in the event of conflicts between DART posted dates and dates on this report. The impacts sheet are based on steady-state hydraulic models assuming recent operating flows, conditions, and various unit outages.

-Restrictions to Primary In-Path transportation services may be necessary.

SNG - Outage Impact Report

-Restrictions to In-Path transportation services may be necessary.

January 2027 (updated 11/12/26)

-Restrictions to Interruptible and Out of Path transportation services may be necessary.

-No anticipated impact to transportation services.

Station / Seg

Est Nominal Design Capacity (Thousand Dth)

Week 1 (1/4 - 1/10)

Week 2 (1/11 - 1/17)

Week 3 (1/18 - 1/24)

Week 4 (1/25 - 1/31)

Primary Outage(s)

Est. Operational Capacity (Operational Impact) - Thousand Dth

Onward (segment 30)

209

209

Duncanville Lateral (segment 90)

Dearmanville (segment 150)

355

355

White Castle (segment 340)

798

798

Sesh (segment 380)

500

500

Gwinville (segment 400)

234

234

Bay Springs Compressor Station: Scheduled Unit Maintenance, Proj-5216-1 (7/8/2025 - 3/31/2027)

Bay Springs (segment 420)

1,817

1702

(115)

1702

(115)

1702

(115)

1702

(115)

South Main line east of Enterprise: Unscheduled Pipeline Maintenance - CAO (5/30/2026 - 3/31/2027)

Enterprise (segment 430)

2,450

2400

(50)

2400

(50)

2400

(50)

2400

(50)

Ellerslie (segment 490)

1,663

1,663

South Atlanta (segment 510)

537

537

Thomaston East (segment 530)

900

900

South Georgia (segment 650)

143

143

This document is updated on a weekly basis and outage schedules/impacts are subject to change as the week progresses.

Dates posted on DART should be deemed correct in the event of conflicts between DART posted dates and dates on this report.

The impacts sheet are based on steady-state hydraulic models assuming recent operating flows, conditions, and various unit outages.

-Restrictions to Primary In-Path transportation services may be necessary.

SNG - Outage Impact Report

-Restrictions to In-Path transportation services may be necessary.

February 2027 (updated 11/12/26)

-Restrictions to Interruptible and Out of Path transportation services may be necessary.

-No anticipated impact to transportation services.

Station / Seg

Est Nominal Design Capacity (Thousand Dth)

Week 1 (2/1 - 2/7)

Week 2 (2/8 - 2/14)

Week 3 (2/15 - 2/21)

Week 4 (2/22 - 2/28)

Primary Outage(s)

Est. Operational Capacity (Operational Impact) - Thousand Dth

Onward (segment 30)

209

209

Duncanville Lateral (segment 90)

Dearmanville (segment 150)

355

355

White Castle (segment 340)

798

798

Sesh (segment 380)

500

500

Gwinville (segment 400)

234

234

Bay Springs Compressor Station: Scheduled Unit Maintenance, Proj-5216-1 (7/8/2025 - 3/31/2027)

Bay Springs (segment 420)

1,817

1702

(115)

1702

(115)

1702

(115)

1702

(115)

South Main line east of Enterprise: Unscheduled Pipeline Maintenance - CAO (5/30/2026 - 3/31/2027)

Enterprise (segment 430)

2,450

2400

(50)

2400

(50)

2400

(50)

2400

(50)

Ellerslie (segment 490)

1,663

1,663

South Atlanta (segment 510)

537

537

Thomaston East (segment 530)

900

900

South Georgia (segment 650)

143

143

This document is updated on a weekly basis and outage schedules/impacts are subject to change as the week progresses.

Dates posted on DART should be deemed correct in the event of conflicts between DART posted dates and dates on this report.

The impacts sheet are based on steady-state hydraulic models assuming recent operating flows, conditions, and various unit outages.

Notice Text:

-Restrictions to Primary In-Path transportation services may be necessary.

SNG - Outage Impact Report

-Restrictions to In-Path transportation services may be necessary.

Seven Day Forecast (updated 11/12/26)

-Restrictions to Interruptible and Out of Path transportation services may be necessary.

-No anticipated impact to transportation services.

Station / Seg

Est Nominal Design Capacity (Thousand Dth)

Monday (11/16)

Tuesday (11/17)

Wednesday (11/18)

Thursday (11/19)

Friday (11/20)

Saturday (11/21)

Sunday (11/22)

Primary Outage(s) that may Impact Throughput

Est. Operational Capacity (Operational Impact) - Thousand Dth

Onward (segment 30)

209

209

Duncanville Lateral (segment 90)

Dearmanville (segment 150)

355

355

White Castle (segment 340)

798

738

(60)

738

(60)

738

(60)

738

(60)

738

(60)

798

Shadyside Compressor Station: Scheduled Unit Maintenance Proj-5000-5 (10/14/2026 - 11/20/2026)

LA West Leg (segment 350)

798

733

(65)

733

(65)

733

(65)

733

(65)

733

(65)

733

(65)

733

(65)

Franklinton Compressor Station: Scheduled Unit Maintenance Proj-512215 (4/27/2026 - 11/22/2026)

Sesh (segment 380)

507

507

Gwinville (segment 400)

234

234

Bay Springs (segment 420)

1,817

1702

(115)

1702

(115)

1702

(115)

1702

(115)

1702

(115)

1702

(115)

1702

(115)

Bay Springs Compressor Station: Scheduled Unit Maintenance Proj-5216-1 (7/8/2025 - 3/31/2027)

Enterprise (segment 430)

2,450

2195

(255)

2195

(255)

2195

(255)

2195

(255)

2195

(255)

2195

(255)

2195

(255)

Enterprise Compressor Station: Scheduled Unit Maintenance Proj-5222-15 (8/3/2026 - 11/29/2026)

South Main line east of Enterprise: Unscheduled Pipeline Maintenance - CAO (5/30/2026 - 3/31/2027)

Ellerslie (segment 490)

1,663

1633

(30)

1633

(30)

1633

(30)

1633

(30)

1633

(30)

1633

(30)

1633

(30)

Ellerslie Compressor Station: Scheduled Unit Maintenance Proj-5267-4 (11/9/2026 - 12/3/2026)

South Atlanta (segment 510)

537

537

Thomaston East (segment 530)

900

900

East/South Wrens (segment 560)

724

629

(95)

724

Wrens Compressor Station: Scheduled Unit Maintenance Proj-5288-4 (11/16/2026)

South Georgia (segment 650)

143

143

The impacts sheet are based on steady-state hydraulic models assuming recent operating flows, conditions, and various unit outages.

						-Restrictions to Primary In-Path transportation services may be necessary.
	SNG - Outage Impact Report					-Restrictions to In-Path transportation services may be necessary.
	November 2026 (updated 11/12/26)					-Restrictions to Interruptible and Out of Path transportation services may be necessary.
-No anticipated impact to transportation services.
Station / Seg	Est Nominal Design Capacity (Thousand Dth)	Week 1 (11/2 - 11/8)	Week 2 (11/9 - 11/15)	Week 3 (11/16 - 11/22)	Week 4 (11/23 - 11/29)	Primary Outage(s)
Station / Seg		Est. Operational Capacity (Operational Impact) - Thousand Dth				Primary Outage(s)
Onward (segment 30)	209				209
Duncanville Lateral (segment 90)	36				36
Dearmanville (segment 150)	355				355
						White Castle Compressor Station: Scheduled Unit Maintenance, Proj-5010-10 (11/23/2026 - 12/6/2026)
White Castle (segment 340)	798				728 (70)
Sesh (segment 380)	507				507
Gwinville (segment 400)	234				234
						Bay Springs Compressor Station: Scheduled Unit Maintenance, Proj-5216-1 (7/8/2025 - 3/31/2027)
Bay Springs (segment 420)	1,817				1702 (115)
						Enterprise Compressor Station: Scheduled Unit Maintenance, Proj-5222-15 (8/3/2026 - 11/29/2026)
Enterprise (segment 430)	2,450				2195 (255)	South Main line east of Enterprise: Unscheduled Pipeline Maintenance - CAO (5/30/2026 - 3/31/2027)
						Ellerslie Compressor Station: Scheduled Unit Maintenance, Proj-5267-4 (11/9/2026 - 12/3/2026)
Ellerslie (segment 490)	1,663				1633 (30)
South Atlanta (segment 510)	537				537
Thomaston East (segment 530)	900				900
South Georgia (segment 650)	143				143
This document is updated on a weekly basis and outage schedules/impacts are subject to change as the week progresses. Dates posted on DART should be deemed correct in the event of conflicts between DART posted dates and dates on this report. The impacts sheet are based on steady-state hydraulic models assuming recent operating flows, conditions, and various unit outages.

-Restrictions to Primary In-Path transportation services may be necessary.

SNG - Outage Impact Report

-Restrictions to In-Path transportation services may be necessary.

December 2026 (updated 11/12/26)

-Restrictions to Interruptible and Out of Path transportation services may be necessary.

-No anticipated impact to transportation services.

Station / Seg

Est Nominal Design Capacity (Thousand Dth)

Week 1 (11/30 - 12/6)

Week 2 (12/7 - 12/13)

Week 3 (12/14 - 12/20)

Week 4 (12/21 - 12/27)

Week 5 (12/28 - 1/3)

Primary Outage(s)

Est. Operational Capacity (Operational Impact) - Thousand Dth

Onward (segment 30)

209

209

Duncanville Lateral (segment 90)

Dearmanville (segment 150)

355

355

White Castle (segment 340)

798

728

(70)

733

(65)

738

(60)

798

Sesh (segment 380)

500

500

Gwinville (segment 400)

234

234

Bay Springs (segment 420)

1,817

1702

(115)

1702

(115)

1702

(115)

1702

(115)

1702

(115)

Bay Springs Compressor Station: Scheduled Unit Maintenance, Proj-5216-1 (7/8/2025 - 3/31/2027)

Enterprise (segment 430)

2,450

2400

(50)

2325

(125)

2400

(50)

2400

(50)

2400

(50)

Enterprise Compressor Station: Scheduled Unit Maintenance, Proj-5222-16 (12/7/2026 - 12/9/2026) South Main line east of Enterprise: Unscheduled Pipeline Maintenance - CAO (5/30/2026 - 3/31/2027)

Ellerslie (segment 490)

1,663

1633

(30)

1,663

Ellerslie Compressor Station: Scheduled Unit Maintenance, Proj-5267-4 (11/9/2026 - 12/3/2026)

South Atlanta (segment 510)

537

537

Thomaston East (segment 530)

900

900

South Georgia (segment 650)

143

143

This document is updated on a weekly basis and outage schedules/impacts are subject to change as the week progresses.

-Restrictions to Primary In-Path transportation services may be necessary.

SNG - Outage Impact Report

-Restrictions to In-Path transportation services may be necessary.

January 2027 (updated 11/12/26)

-Restrictions to Interruptible and Out of Path transportation services may be necessary.

-No anticipated impact to transportation services.

Station / Seg

Est Nominal Design Capacity (Thousand Dth)

Week 1 (1/4 - 1/10)

Week 2 (1/11 - 1/17)

Week 3 (1/18 - 1/24)

Week 4 (1/25 - 1/31)

Primary Outage(s)

Est. Operational Capacity (Operational Impact) - Thousand Dth

Onward (segment 30)

209

209

Duncanville Lateral (segment 90)

Dearmanville (segment 150)

355

355

White Castle (segment 340)

798

798

Sesh (segment 380)

500

500

Gwinville (segment 400)

234

234

Bay Springs Compressor Station: Scheduled Unit Maintenance, Proj-5216-1 (7/8/2025 - 3/31/2027)

Bay Springs (segment 420)

1,817

1702

(115)

1702

(115)

1702

(115)

1702

(115)

South Main line east of Enterprise: Unscheduled Pipeline Maintenance - CAO (5/30/2026 - 3/31/2027)

Enterprise (segment 430)

2,450

2400

(50)

2400

(50)

2400

(50)

2400

(50)

Ellerslie (segment 490)

1,663

1,663

South Atlanta (segment 510)

537

537

Thomaston East (segment 530)

900

900

South Georgia (segment 650)

143

143

This document is updated on a weekly basis and outage schedules/impacts are subject to change as the week progresses.

Dates posted on DART should be deemed correct in the event of conflicts between DART posted dates and dates on this report.

The impacts sheet are based on steady-state hydraulic models assuming recent operating flows, conditions, and various unit outages.

-Restrictions to Primary In-Path transportation services may be necessary.

SNG - Outage Impact Report

-Restrictions to In-Path transportation services may be necessary.

February 2027 (updated 11/12/26)

-Restrictions to Interruptible and Out of Path transportation services may be necessary.

-No anticipated impact to transportation services.

Station / Seg

Est Nominal Design Capacity (Thousand Dth)

Week 1 (2/1 - 2/7)

Week 2 (2/8 - 2/14)

Week 3 (2/15 - 2/21)

Week 4 (2/22 - 2/28)

Primary Outage(s)

Est. Operational Capacity (Operational Impact) - Thousand Dth

Onward (segment 30)

209

209

Duncanville Lateral (segment 90)

Dearmanville (segment 150)

355

355

White Castle (segment 340)

798

798

Sesh (segment 380)

500

500

Gwinville (segment 400)

234

234

Bay Springs Compressor Station: Scheduled Unit Maintenance, Proj-5216-1 (7/8/2025 - 3/31/2027)

Bay Springs (segment 420)

1,817

1702

(115)

1702

(115)

1702

(115)

1702

(115)

South Main line east of Enterprise: Unscheduled Pipeline Maintenance - CAO (5/30/2026 - 3/31/2027)

Enterprise (segment 430)

2,450

2400

(50)

2400

(50)

2400

(50)

2400

(50)

Ellerslie (segment 490)

1,663

1,663

South Atlanta (segment 510)

537

537

Thomaston East (segment 530)

900

900

South Georgia (segment 650)

143

143

This document is updated on a weekly basis and outage schedules/impacts are subject to change as the week progresses.

Dates posted on DART should be deemed correct in the event of conflicts between DART posted dates and dates on this report.

The impacts sheet are based on steady-state hydraulic models assuming recent operating flows, conditions, and various unit outages.

Outage Impact Report

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