Southern Natural Gas Company

Seventh Revised Volume No. 1

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Effective Date: 11/01/2007, Docket: RP08- 52-000, Status: Effective

Third Revised Sheet No. 380 Third Revised Sheet No. 380 : Effective

Superseding: Second Revised Sheet No. 380

Service Agreement No. _______

Authorization: ______________

PRO FORMA

FORM OF SERVICE AGREEMENT

UNDER RATE SCHEDULE ISS

THIS AGREEMENT, made and entered into as of this ______ day of

____________________, _____, by and between Southern Natural Gas Company, a

Delaware general partnership, hereinafter referred to as "Company", and ______________

___________________________, a ___________________ corporation, hereinafter referred

to as "Shipper".

WITNESSETH

WHEREAS, Company has undertaken to provide an interruptible storage service

under Part 284 of the Federal Energy Regulatory Commission's (Commission)

Regulations; and

WHEREAS, Shipper has requested storage service on an interruptible basis

pursuant to Rate Schedule ISS and has submitted to Company a request for such storage

service in compliance with Section 7 of Company's Rate Schedule ISS; and

WHEREAS, Company is willing to render interruptible storage service to Shipper

pursuant to the provisions of Rate Schedule ISS, this Agreement and

Part 284 of the Commission's Regulations.

NOW, THEREFORE, the parties hereby agree as follows:

ARTICLE I

STORAGE ACCOUNT

1.1 Subject to the terms and provisions of this Agreement and Company's Rate

Schedule ISS and the General Terms and Conditions applicable thereto, to the extent

Shipper or a third party delivers gas for injection into SHIPPER's ISS storage account, Company shall

credit

such injection, less the applicable fuel charge set forth in Rate Schedule ISS, to

Shipper's Storage Inventory.