Centerpoint Energy Gas Transmission Company

Sixth Revised Volume No. 1

Effective Date: 05/01/2010, Docket: RP10-567-000, Status: Effective

First Revised Sheet No. 182 First Revised Sheet No. 182

Superseding: Original Sheet No. 182

RATE SCHEDULE FSS

FIRM STORAGE SERVICE

(continued)

2. APPLICABILITY AND CHARACTER OF SERVICE (continued)

as well as the General Terms and Conditions of this Tariff.

2.7 A Service Agreement under this Rate Schedule must commence at the

beginning of a Storage Contract Year and continue for a term of

one or more Storage Contract Years.

2.8 The Maximum Storage Quantity, the Maximum Injection Quantity and

the Maximum Deliverability Quantity shall be specified in the

Service Agreement.

2.9 A Shipper may designate Transporter's Bistineau Storage Field as a

specific Storage Point of Withdrawal for delivery of stored Gas

into Gulf South Pipeline Company facilities provided that

Transporter shall determine and post on its Internet Web Site

during the Withdrawal Period the aggregate daily quantity of Gas

available for withdrawal at Bistineau by Shippers under this Rate

Schedule. Transporter will determine such available withdrawal

quantity by analyzing working Gas balances and current

deliverability of Gas at Bistineau and on the system as a whole

and anticipated operating conditions and requirements in the

portion of the system affected by Bistineau operations. Any

quantities requested for withdrawal at Bistineau must not exceed

the quantity limitations provided for in this Rate Schedule and

Shipper's Service Agreement and if Transporter receives requests

for withdrawal in excess of the posted available quantities at

Bistineau, the quantities available shall be allocated pro rata

based on each Shipper's Maximum Daily Withdrawal Quantity.

2.10 Shipper may request the right to inject Gas into storage during

the Withdrawal Period and withdraw gas from storage during the

Injection Period, up to the applicable contract quantities

specified in Section 2.8 of this Rate Schedule. Transporter shall

employ reasonable efforts to grant Shipper's request to inject and

withdraw outside the applicable periods subject to operational

considerations, available capacity and conditions on Transporter's

system. At no time shall Transporter have an obligation to