Southern Natural Gas Company

Seventh Revised Volume No. 1

Effective Date: 09/01/2003, Docket: RP00-476-004, Status: Effective

Second Revised Sheet No. 73 Second Revised Sheet No. 73 : Effective

Superseding: First Revised Sheet No. 73

RATE SCHEDULE CSS

Contract Storage Service

(Continued)

for injection. Notice of a changed nomination shall be given in accordance

with Section 5(a) of this Rate Schedule.

at the Storage Point in excess of SHIPPER'S MDIQ; provided, however,

that SHIPPER shall be entitled to nominate, or cause to be nominated, a

quantity sufficient to cover the fuel charge provided for in Section 4(b)

hereof.

(d) SHIPPER may have gas injected into Storage only to the extent its

estimated Storage Inventory does not exceed its Maximum Storage

Quantity.

(e) The injection of gas by COMPANY and the delivery of gas for SHIPPER'S

account to Storage shall be performed at hourly rates as constant as

operationally feasible throughout the day and the parties shall use best

efforts to achieve such uniform hourly rates of flow.

(f) An account of SHIPPER'S current Storage Inventory will be provided on a

monthly basis on SHIPPER'S bill and an estimated Storage Inventory

based on Section 13.2 of the General Terms and Conditions will be made

available on a daily basis on SoNet as soon as such information is available

for posting.

6. WITHDRAWAL PROCEDURES

(a) SHIPPER, or its agent designated in an executed agency agreement, shall

nominate gas for withdrawal under this Rate Schedule by notifying

COMPANY of the daily quantity of gas expressed in Dth it desires to

withdraw from Storage pursuant to the nomination procedures set forth in

Section 12 of the General Terms and Conditions by designating receipts

from storage under SHIPPER'S firm or interruptible transportation

agreement or a third party's transportation agreeement. In the event the

nomination for withdrawal from Storage for SHIPPER'S account is made by a

third party shipper under its own transportation agreement, the third-

party shipper's transportation nomination must designate receipts from

SHIPPER'S applicable Storage contract account number.