TGP Outages September & October 2011

1. TGP OutagesSeptember & October 2011 Customer Webex September 6, 2011

2. Agenda • Review Maintenance Information Postings • Review of Upcoming Outages • September & October 2011 • Gulf Coast • Central • Northern • Other major 2011 outages • Q&A

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 Tennessee Gas Pipeline tariff to mean a period of twenty-four consecutive hours, beginning and ending at 9:00 a.m. (Central Clock Time).

4. Disclaimers • Scheduled dates are subject to change. • Projects may be added, altered, delayed or cancelled. • TGP will provide notice of such additions or changes via PASSKEY postings. • Dates as posted on PASSKEY should be deemed correct in the event of conflicts between PASSKEY posted dates and dates within this presentation.

5. Maintenance Information Postings • What reports are out there (and what do they mean to me)? • Where can I find them? • How can I have Passkey work for me? (subscriptions)

6. Maintenance Information Postings • TGP Scheduled Outages

7. Maintenance Reports

8. Maintenance Reports

9. Maintenance Reports

10. Maintenance Reports

11. Capacity Impact Report

12. Capacity Impact Report

13. Capacity Impact Report

14. Maintenance Information Subscriptions

15. Maintenance Information Subscriptions

16. Maintenance Information Subscriptions

17. Maintenance Information Subscriptions

18. Maintenance Information Subscriptions

19. Maintenance Information Postings • Questions about maintenance reports and subscriptions?

20. Color Key for Maps • Green • No Impact Anticipated • Yellow • Restrictions are possible, but not likely. • With extended duration, restrictions could be necessary from time to time. • Red • Restrictions are probable, OR • Meter(s) affected, OR • Combination of the above.

21. Gulf Coast September 2011 Outages Anomaly remediations MLV 46-1 to 47-1 - 9/16 to 9/17 MLV 45-1 to 46-1 - 9/12 to 9/15 MLV 44-1 to 45-1 - 9/6 to 9/9 MLV 42-1 to 43-1 - 9/1 to 9/11 MLV 41-1A to 41-1 - 9/19 to 9/23 Anomaly remediations MLV 539-1 to 540-1 - 9/24 to 10/5 MLV 538-2 to 539-2 - 9/17 to 9/24 MLV 537-2 to 538-2 - 9/6 to 9/17 MLV 536-2 to 537-2 - 9/15 to 9/24 Station 827 Peco filter change 9/22 Station 823 (~4 hours) ESD Test 9/13 Unit testing 9/13 to 9/16 MLV 21-3A to 22-3 Line lowering (M) 8/18 to 9/21 Line 21B-100 (Tomball Line) Hydrostatic test. (M) 9/20 to 9/30 MLV 20 to MLV 21 (all three lines) - Line lowering 9/10 to 10/15 Sta 823 to MLV 516 Maintenance pigging (M) 9/20 Line 823X-1300 Line abandonment (M) 8/22 to 9/11 527A-2400 (SP 57 to SP 77) Line abandonment (M) 9/8 to 9/11 MLV 7-2 to 9-2 Emergent Anomaly 7/19 to 12/31 509A-2900 Line abandonment (M) 9/15 to 9/18 Vermilion 245 Filter separator installation 9/19 to 9/30

22. Central September 2011 Outages MLV 200-4 to 202-4 Anomaly remediation 7/5 to 10/7 Station 200 ESD test 9/13 to 9/14 MLV 867-2 to 871-2 Anomaly remediation 8/19 to 9/13 Anomaly remediations MLV 79-1 to 82-1 - 9/12 to 10/15 MLV 82-3C to 86-3 - 7/13 to 9/30 MLV 83-1 to 85-1 - 8/19 to 9/12 MLV 562-2 to 565-2 Emergent anomaly 7/27 to 11/1 MLV 555-1 to 559-1 Anomaly remediation 8/30 to 9/24 MLV 78-3 to 79-3 Install pig launchers, pipe and mainline valves. 9/6 to 9/24 MLV 63-4 to 64-4 Hydrostatic test 8/22 to 9/23 MLV 550-1 to 552-1 Anomaly remediation (M) 9/24 to 10/15 Station 54 Substation maintenance 9/27 to 9/30 Station 47 B &C Bldg(1 at a time) BPS removal 9/27 to 9/29 Station 47 Unit 1E compressor cleaning 9/12 to 9/18

23. Northern September 2011 Outages Anomaly Remediations MLV 245-1 to 246-1 - 9/19 to 9/30 MLV 246-1 to 247-1 - 8/8 to 9/9 MLV 259-1 to 260-1 - 9/12 to 9/23 Station 241 Unit 1A install catalyst 9/8 to 9/24 Station 249 Unit 2A maintenance 9/26 to 9/30 Unit 1B maintenanceb9/6 to 9/8 Unit 2B maintenance 9/16 to 9/16 Station 245 Fuel modifications 9/10 Unit work 9/20 to 9/22 Line 273B-101 Haverhill Lateral - Anomaly remediation 9/26 to 10/1/11 Station 237 ESD Test 9/27 Line 261B-100 (Springfield ) Hydrostatic test (M) 9/29 to 10/3 Station 229 ESD Test. 9/15 Station 405A Unit maintenance 9/9 to 9/11 Line 264B-101 (Spencer) Anomaly remediation 9/26 to 10/1 MLV 313A-400 to 313A-405 (HC Line) Anomaly remediation 9/20 to 9/30 Station 266 (Mendon) Unit 1B overhaul 9/12 to 9/16 Station 313 A bldg controls 9/19 to 9/26 Station 224 ESD Test 9/13 Units 1A-4A maintenance 9/19 to 9/23 MLV 312-2 to 313-2 Install receiver (M) 8/25 to 9/9 MLV 334-1 to 336-1 Pipe relocation (M) 9/13 to 9/19 Station 313 Unit work - 9/6 to 9/22 Tie in gas cooler/filter separator 9/13 to 9/15 Station 323 Electric maintenance/ESD Test 9/12 to 9/16 MLV 307-2 to 308-2 Install launcher (M) 9/9 to 9/15 Station 315 HP replacement 3/9 to 9/15 Station 319 ESD test (1 day) 9/28 to 10/7 300 Line Expansion Tie-ins MLV 315-2 to 315A-102 - 9/19 to 9/25 MLV 317-AD2 to 317A-101 - 9/19 to 9/26 MLV 321-2 to 321-101 - 9/20 to 9/26 MLV 211-1 to 212-1 Emergent Anomaly (M) 9/10 to 9/15 Emergent Anomaly Remediations MLV 208-1 to 209-1 - 8/24 to 9/16 MLV 207-1 to 208-1 - 9/10 to 9/15 MLV 213-1 to 214-1 - 9/10 to 9/15

24. Gulf Coast October 2011 Outages Bear Creek Storage Fall shut in test. 10/18 to 10/24 Station 40 - Unit 500 C1 Unit inspection 10/3 to 10/6 MLV 41-1 to 42-1 Anomaly remediation (M) 10/4 to 10/22 MLV 539-1 to 540-1 Anomaly remediation 9/24 to 10/5 MLV 32-3 to 34-3 Hydrostatic test (M) 10/4 to 10/31 MLV 25-2 to 27-2 Hydrostatic test 10/4 to 10/31 Branch line inspections (M) MLV 33-1 to 34-1 - 10/4 to 10/7 MLV 26-1 to 27-1 - 10/10 to 10/13 MLV 19-1 to 20-1 - 10/17 to 10/21 MLV 15-1 to 16-1 - 10/24 to 10/27 MLV 14-1 to 15-1 - 10/28 to 11/2 MLV 16-3 to 17-3 Relocate pig receiver 10/6 to 10/24 Bluewater—System Pecan Island to Cocodrie Pigging operations. 10/18 to 10/23 Station 1 ESD Test. 10/27

25. Central October 2011 Outages MLV 200-4 to 202-4 Anomaly remediation 7/5 to 10/7 Station 200 MCC replacement 10/17 to 10/31 MLV 100-4 to 101-4 Pipe replacement 10/22 to 11/4 MLV 110-2 to 114-2 ILI pigging operations 10/5 Station 96 MCC replacement 10/3 to 10/14 MLV 63-1 to 69-1 ILI pigging operations 10/20 to 10/22 MLV 550-1 to 552-1 Anomaly remediation (M) 9/24 to 10/15 Anomaly Remediations MLV 550-2 to 554-2 - 10/15 to 10/24 MLV 540-1 to 541-1 - 10/12 to 10/26 MLV 540-2 to 541-2 - 10/26 to 11/3 Station 843 Yard welding 10/26 to 10/27 Anomaly remediations (M) MLV 540-2 to 541-2 - 10/26 to 11/3 MLV 539-2 to 540-2 - 10/5 to 10/12 MLV 834-1 to 835-1 ILI pigging operations 10/17 to 10/18

26. Northern October 2011 Outages Station 241 3A Unit maintenance 9/26 to 10/7 B Unit maintenance 10/10 to 10/15 MLV 270B-101.1 to 270B-105 ILI pigging (M) 10/11 to 10/13 MLV 237-1 to 245-1 Efficiency pigging. 10/11 Station 266 ESD Test 10/4 to 10/5 MLV 313A-405 to 410 (HC Line) - Anomaly remediation 10/1 to 10/7 Station 265E Replace BPS system (M) 10/3 to 10/7 Fall shut in test. Harrison Storage - 10/3 to 10/7 Hebron/Ellisburg Storage 10/24 to 10/28 Line 265E-100 (RI) ILI pigging operation 10/4 Meter 020914 (Sabinsville) Meter upgrade 10/1 to 10/16 MLV 318-1 to 319-1, 320-1 to 321-1, and 322-1 to 323-1 Anomaly remediations (M) 10/18 to 10/28 300 Line Expansion Tie-ins MLV 325-2 to 325D-101 - 10/3 to 10/20 MLV 320-2L to 320-2A - 10/13 to 10/21 MLV 314A-101 to 315-2 - 10/9 to 10/23 Line 217A (Pittsburg Spur) ILI pigging operation 10/1 MLV 213-3 to 214-3 Hydrostatic test. 10/10 to 10/21

27. 300 Line Anomaly Digs MLV 318-1 to 319-1, 320-1 to 321-1, and 322-1 to 323-1 Anomaly remediations (M) 10/18 to 10/28 Meters in the MLV 318-1 to 319-1 valve section: 012823 ELLIOTT DEHY: RIP 318 101.1 012769 EVANCHICK DEHY: RIP 318C 101.1 020652 WYALUSING SALES Meters in the MLV 322-1 to 323-1 valve section: 020277 HONESDALE PENNSYLVANIA SALES Station 325 Station 313 Station 323 Station 323 Station 313 Station 321 Station 325 Station 315 Station 319 Station 317 Station 315 MLV 318 MLV 324 MLV 316 MLV 320 MLV 322 MLV 314 Meters in the MLV 320-1 to 321-1 valve section: 012751 HOP BOTTOM DEHYD: RIP 320C 101.1 012841 AUBURN DEHYDRATION: RIP 320-1 0.04 012782 LOTT DEHYDRATION: RIP 320D 101.1A 012778 TEEL DEHYDRATION: RIP 320H 101.1A 012825 STRICKLAND HILL DEHY: RIP 320K 101.1 012793 SPRINGVILLE DEHY: RIP 320I 101.1 012821 DIMOCK DEHY: RIP 320J 101.1 012794 KORBAN DEHY:RIP 320E 101.1 Reduced operating pressures by 20% • 27

28. Carthage Outage November 2011 012688 PANOLA TRANSPORT 2 012033 CARTHAGE TRANSPORT 012141 CARTHAGE GAS UNIT 13 (Bi 2 0723 020723 CARTHAGE GAS UNIT 13 (Bi 1 2141) 010031 EAST TEXAS PLANT DEHYDRATION 011200 ENTEX PANOLA TRANSPORT (CI) 012764 STATE LINE PROCESSING: RIP 704F 012807 LOGANSPORT B: RIP 704H 101.1A 012759 BURFORD GATHERING: RIP 704 E 101.1 012081 BETHANY LONGSTREET FIELD 012026 GRAND CANE 012706 LOGANSPORT 011327 SPIDER DEHYDRATION 012725 DE SOTO GATHERING 012607 DESOTO HOLLY FIELD 011525 BELLE BOWER DEHYDRATION MLV 707 012583 BENSON AND CONVERSE 012814 BLACKSTONE NO 1: RIP 703K 101.1 011442 NABORTON DEHYD D N BELL 1 (CI) 012775 TRENTON SALES: RIP 703H 1 5.38 012765 HARRIS 19.1: RIP 703G 101.1 012736 MARTIN TIMBER (CO) 012610 WEST MANSFIELD MLV 706 MLV 705 020628 PLEASANT HILL TRANSPORT (CI) 012786 BLACKSTONE IVORY: RIP 702M 101.1 011668 BRUSHY BAYOU FIELD 011755 GROGAN FIELD (CI) 011330 CHEMARD LAKE DEHYDRATION 011590 GROGAN FIELD (CI) Pipe replacement in Station 40 yard. 11/1-11/3 Impact: Carthage Lateral shut in at Station 40. -Physical flow into the Carthage Lateral must match physical flow out of the Carthage Lateral. -All receipt meters between MLV 707 (end of lateral) and MLV 700—at Station 40 would have to shut in or schedule flow to Enterprise meter 020723. MLV 704 MLV 703 Station 703 MLV 702 MLV 701 011598 SAN MIGUEL CREEK FIELD (CI) 011143 GROGAN DEHYDRATION TRANSPORT (CI) Station 40 MLV 700 • 28

29. TGP September & October Outages • Questions?

30. We welcome your feedback/questions • Suggestions for improvements to this meeting • Are the meetings beneficial? • Is additional information needed? • Questions after the meeting? • Other? • Email to one of the following: • Your scheduler • PASSKEY Portal