Centerpoint Energy Gas Transmission Company

Sixth Revised Volume No. 1

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Effective Date: 01/01/2010, Docket: RP10-206-000, Status: Effective

Second Revised Sheet No. 309 Second Revised Sheet No. 309

Superseding: Substitute First Revised Sheet No. 309

GENERAL TERMS AND CONDITIONS

(continued)

1. DEFINITIONS AND INTERPRETIVE MATTERS (continued)

Contract Limitations shall mean, individually or collectively,

Maximum Receipt Obligation, Secondary Maximum Receipt Quantity,

Maximum Delivery Obligation, Secondary Maximum Delivery Quantity,

Receipt Entitlement, Maximum Storage Quantity, Maximum Daily

Injection Quantity, Maximum Daily Withdrawal Quantity, Maximum

Seasonal Withdrawal Quantity and Contract Demand.

Contract Pressure Base means Gas at 14.73 psia.

Cubic Foot shall mean the volume of Gas that occupies one cubic

foot when said Gas is at a temperature of sixty degrees (60()

Fahrenheit and at a pressure of 14.73 psia.

Daily Imbalance shall mean the Imbalance existing at the

conclusion of any Day under a Service Agreement.

Daily Index Price shall mean the applicable midpoint price quoted

for deliveries to Transporter in the Daily Price Surveys published

by Gas Daily for the applicable Day of Gas flow and for the

Pooling Area or geographic area which most closely approximates

the applicable Pooling Area (if spot prices are quoted for

Transporter's Pooling Areas or other geographic designations) in

which a particular Imbalance is incurred. If such surveys are no

longer published, Transporter will determine an acceptable

substitute source for the Daily Index Price, which it will post on

its Internet Web Site. Transporter will post on its Internet Web

Site, and update from time to time, for each Pooling Area, the Gas

Daily geographic designation which will be used for such Pooling

Area.

Daily Linked Firm Service Penalty Revenues. See Section 31.2.

Daily Linked Firm Service Penalty Revenue Credit. See Section

31.2.

Day shall mean a period of twenty-four (24) consecutive hours

beginning at 9:00 a.m. Central Clock Time, or such other time

mutually acceptable to Transporter and Shipper.