Centerpoint Energy - Mississippi River

Third Revised Volume No. 1

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Effective Date: 01/19/2005, Docket: RP05-129-000, Status: Effective

Second Revised Sheet No. 38 Second Revised Sheet No. 38 : Effective

Superseding: First Revised Sheet No. 38

RATE SCHEDULE FSS

FIRM STORAGE SERVICE

(Continued)

2. APPLICABILITY AND CHARACTER OF SERVICE (Continued)

2.3 Service provided by MRT under this rate schedule shall be firm and

shall not be subject to curtailment, interruption or discontinuance, except as

specified in Sections 8 and 9 of the General Terms and Conditions.

2.4 Service under Rate Schedule FSS shall be provided through the use

of MRT's aggregated storage facilities. Customers shall not be allocated

capacity or deliverability from any one specific storage facility.

2.5 All deliveries for injection into storage and receipts for

withdrawal from storage shall be made at the Unionville Storage Field

receipt/delivery point.

2.6 MRT will permit Rate Schedule FSS Customers to inject gas into

storage during the withdrawal season on a best efforts basis.

2.7 An FSS Agreement must commence at the beginning of the injection

season and continue for a term of one or more years ending at the end of a

withdrawal season, unless MRT otherwise agrees.

3. INJECTIONS

3.1 Rate Schedule FSS Customers shall inject gas into storage in

accordance with the following injection schedule:

End of Month

Maximum Maximum Inventory

Daily Level in Excess of

Injection Minimum Maximum Volume Retained

(Fraction Monthly Monthly at the End of the

of Capacity Injection Injection Withdrawal Season

Contracted) (% MIQ) (% MIQ) (% MIQ)

May 16-31 1/221 0 7 7

June 1/129 14 18 25

July 1/129 16 23 48

August 1/124 16 24 68

September 1/124 16 24 84

October 1/124 14 24 98

November 1-15 1/281 2 5 100