Southern Natural Gas Company

Seventh Revised Volume No. 1

Effective Date: 07/30/2008, Docket: RP09-288-000, Status: Effective

Seventh Revised Sheet No. 277 Seventh Revised Sheet No. 277

Superseding: Sixth Revised Sheet No. 277

GENERAL TERMS AND CONDITIONS

(Continued)

APPENDIX H

CAPACITY RELEASE TIMETABLE 3

Except as set forth in Timetable 1, the following deadline applies to all standard

offers to release firm capacity under the provisions of Section 22 of these General Terms

and Conditions for a term of MORE THAN ONE YEAR ("long-term releases"). All parties

who wish to submit such offers or who wish to bid on such posted offers (including a

Prearranged Bidder) must take all actions required by Section 22 within the following

time periods to avoid disqualification.

FOR STANDARD OFFERS: FOR NONSTANDARD OFFERS

Business Day Prior to Business Day Prior to

Daily Nomination Deadline Daily Nomination Deadline

for the Day of Release for the Day of Release Event

________________________ _________________________ ______________________________

4 (12:00 p.m.) 5 (12:00 p.m.) Offer posted by Releasing Shipper

4 (11:45 a.m. via EDI) 5 (11:45 a.m. via EDI)

1 (1:00 p.m.) 2 (1:00 p.m.) Open season for bids ends

1 (1:15 p.m. via EDI) 2 (1:15 p.m. via EDI) Evaluation period begins during which

(Provided bid is time- (Provided bid is time- contingencies are eliminated,

stamped by 1:00 p.m.) stamped by 1:00 p.m.) best bid is determined,

ties are broken and

capacity is evaluated

1 2:00 p.m. 1 2:00 p.m. Evaluation period ends

Prearranged Bidder notified on

SoNet Premier if best bid is

higher

Winner is notified if there is no

Prearranged Bidder

1 (2:30 p.m.) 1 (2:30 p.m.) Prearranged Bidder chooses to

(2:45 p.m. via EDI) (2:45 p.m. via EDI) match or not

(Provided bid is time- (Provided bid is time-

stamped by 2:30 p.m.) stamped by 2:30 p.m.)

1 (3:00 p.m.) 1 (3:00 p.m.) Winner is notified if Prearranged

Bidder does not match;

General notice to all bidders

posted on SoNet Premier;

Details of the Capacity Release Transaction

are available on SoNet

Premier; Nomination possible

beginning at the next available

nomination cycle for the effective

date of the Capacity Release Transaction.