Southern Natural Gas Company

Seventh Revised Volume No. 1

Effective Date: 09/22/2004, Docket: RP04-494-000, Status: Effective

Third Revised Sheet No. 363 Third Revised Sheet No. 363 : Effective

Superseding: Second Revised Sheet No. 363

FORM OF SERVICE AGREEMENT

UNDER RATE SCHEDULE CSS

(Continued)

6.4 This Agreement shall bind and benefit the successors and assigns of the respective

parties hereto. Subject to the provisions of Section 22 of the General Terms and

Conditions applicable hereto, either party may assign this Agreement to an affiliated

company without the prior written consent of the other party, provided that the

affiliated company is creditworthy pursuant to Section 2.1(d) of the General Terms and

Conditions, but neither party may assign this Agreement to a nonaffiliated company

without the prior written consent of the of the other party, which consent shall not

be unreasonably withheld; provided, however, that either party may assign or pledge

this Agreement under the provisions of any mortgage, deed of trust, indenture or

similar instrument.

6.5 Exhibits A, B, and ___________, attached

to this Agreement constitute a part of this Agreement and are incorporated herein.

6.6 This Agreement is subject to all present and future valid laws and orders, rules,

and regulations of any regulatory body of the federal or state government having

or asserting jurisdiction herein. After the execution of this Agreement

for firm storage capacity from Company, each party shall make

and diligently prosecute, all necessary filings with federal or other

governmental bodies, or both, as may be required for the initiation and

continuation of the storage service which is the subject of this Agreement. Each

party shall have the right to seek such governmental authorizations, as it deems

necessary, including the right to prosecute its requests or applications for such

authorization in the manner it deems appropriate. Upon either party's request,

the other party shall timely provide or cause to be provided to the requesting

party such information and material not within the requesting party's control

and/or possession that may be required for such filings. Each party shall

promptly inform the other party of any changes in the representations made by

such party herein and/or in the information provided pursuant to this paragraph.

Each party shall promptly provide the other party with a copy of all filings,

notices, approvals, and authorizations in the course of the prosecution of its

filings. In the event all such necessary regulatory approvals have not been issued

or have not been issued on terms and conditions acceptable to Company or

Shipper within __________ months from the date of the initial FERC application

therefore, then Company or Shipper may terminate this Agreement without further

liability or obligation to the other party by giving written notice thereof at any

time subsequent to the end of such ____________-month period, but prior to the receipt

of all such acceptable approvals. Company or Shipper may waive their rights to terminate

this Agreement under this Section upon mutual agreement in writing. Such notice will be

effective as of the date