Southern Natural Gas Company 2014 Outage Review Meeting Customer con call and Webex July 16,

Welcome 2

Agenda Review Unscheduled Outages Review of Upcoming Outages – July/August & September North System South System South Louisiana – Outages for the remainder of 2014 North System South System South Louisiana Contacts 3

Disclaimers Anticipated Impacts are estimates. Actual nominations, market demand, weather and pipeline conditions, etc. will determine if, and through what level, restrictions become necessary. Unless otherwise stated, all scheduled dates represent gas days as defined in the Southern Natural Gas Pipeline tariff to mean a period of twenty-four consecutive hours, beginning and ending at 9:00 a.m. (Central Clock Time). Scheduled dates are subject to change. Projects may be added, altered, delayed or cancelled. SNG will provide notice of such additions or changes via SoNet Premier postings. Dates as posted on SoNet should be deemed correct in the event of conflicts between SoNet posted dates and dates within this presentation. 4

Color Key for Maps Green – No Impact Anticipated Yellow – Restrictions are possible – With extended duration, restrictions could be necessary from time to time – Meter(s) affected are noted with (M) Red – Restrictions are probable 5

Southern Natural Gas Pipeline LA MS AL GA FL Enterprise White Castle Bear Creek Muldon Chattanooga Atlanta Thomaston Albany Elba SC Aiken Elba Express North System South Louisiana South System 6 Compressor Station Storage Field LNG Compressor Station Storage Field LNG Pearl River Franklinton Gwinville

Southern Natural Gas Pipeline Unscheduled Outage Update LA MS AL GA FL Enterprise White Castle Bear Creek Muldon Chattanooga Atlanta Thomaston Albany Elba SC Aiken Elba Express 7 Compressor Station Storage Field LNG Compressor Station Storage Field LNG Pearl River Franklinton Gwinville Toca 8” West Point Line outage. Auburn Franklinton compressor station unit outage Return to service around March of 2015 Bear Creek unit outage Return to service South Section line 28 outage- Erath, La. To White Castle Station Sabine Sea Robin South Sect. Terminal Lake Larose Crook Chene Return to service around

SNG North System Maint. Review July/August & September LA MS AL GA Logansport Bienville Bear Creek Storage Onward Pickens Rankin Louisville Muldon Storage Reform McConnells Providence Tarrant Pell City DeArmanville Bell Mills Rome Compressor Station Storage Field Compressor Station Storage Field Huntsville Chattanooga Atlanta 8 Southern will be conducting other general maintenance during this period AL 16” Logansport Supply line pigging-7/29/14 and 7/31/14 Customers may experience higher than normal pressures Remediation on 24” North Main Loop line 7/7/14 to 8/10/14 Cap reduced 90 MMcf/d Pipeline relocation on 30” field storage line mid August Stopple by-pass Pipeline remediation 24” North Main 2 nd Loop line September/October Capacity reduced as much as 95 MMcf/d

SNG South System Maint. Review July/August & September MS AL GA Enterprise Gwinville Selma Auburn Ellerslie Thomaston Ocmulgee Hallgate Wrens Elmore York Gallion Bay Springs Compressor Station Storage Field LNG Compressor Station Storage Field LNG Atlanta Elba Hartwell Elba Express Aiken Holy Trinity Albany Pavo 9 Brookman Riceboro Southern will be conducting other general maintenance during this period Pipeline replacement on the 24” South Main Loop line 8/4/14 thru 9/12/14 Capacity reduced up to 100 MMcf/d Pipeline replacement on the 30” South Main 2 nd Loop line 9/15/14 thru 11/1/14 Capacity reduced up to 240 MMcf/d Enterprise unit maintenance- September/October

SNG South La. System Maint. Review July/August & September Shadyside White Castle Franklinton Toca Gwinville LA MS Compressor Station Storage Field Compressor Station Storage Field West Leg East Leg 10 Pearl River Southern will be conducting other general maintenance during this period

SNG North System Maintenance Review remainder of 2014 LA MS AL GA Logansport Bienville Bear Creek Storage Onward Pickens Rankin Louisville Muldon Storage Reform McConnells Providence Tarrant Pell City DeArmanville Bell Mills Rome Compressor Station Storage Field Compressor Station Storage Field Huntsville Chattanooga Atlanta Bear Creek Fall Shut-in Test 10/21/14 thru 10/27/14 DIQ and DWQ allocated 64% Muldon Fall Shut-in Test 10/7/14 thru 10/13/14 DIQ and DWQ allocated 36% 11 Southern will be conducting other general maintenance during this period Muldon unit maintenance Two weeks in the fall

SNG South System Maintenance Review remainder of 2014 MS AL GA Enterprise Gwinville Selma Auburn Ellerslie Thomaston Ocmulgee Hallgate Wrens Elmore York Gallion Bay Springs Compressor Station Storage Field LNG Compressor Station Storage Field LNG Atlanta Elba Hartwell Elba Express Aiken Holy Trinity Albany Pavo 12 Brookman Riceboro Ellerslie unit maintenance In October Southern will be conducting other general maintenance during this period Auburn unit maintenance September /October

SNG South Louisiana System Maintenance Review remainder of 2014 Shadyside White Castle Franklinton Toca Gwinville LA MS Compressor Station Storage Field Compressor Station Storage Field West Leg East Leg 13 Pearl River White Castle, Shadyside Unit Maintenance Mid September - mid October West Leg Capacity impact up to 150 MMcf/d Southern will be conducting other general maintenance during this period

Gas Control Contacts Adam Krustchinsky – Manager (713) – 420 – 3265 (office) (713) – (cell) Kal Dankovich – Outage Coordinator (713) – 420 – 7522 (office) (205) – 420 – 7305 (Gas Control) Jimmy Reese – Lead Controller (713) – 420 – 7310 (office) (205) – 420 – 7305 (Gas Control) Daniel Mitchell – Lead Controller (205) – 420 – 5874 (office) (205) – 420 – 7305 (Gas Control) 14

Questions? 15