Centerpoint Energy Gas Transmission Company

Sixth Revised Volume No. 1

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Effective Date: 08/26/2009, Docket: RP09-843-000, Status: Effective

Fourth Revised Sheet No. 320 Fourth Revised Sheet No. 320

Superseding: Third Revised Sheet No. 320







the eastern terminus of the Neutral Pooling Area and north of Line



Operating Plan. See Section 20.


Operating Range shall mean the authorized percentage variance of

two percent (2%) between the total Dth or quantity of Gas

delivered by Shipper at the Point(s) of Receipt, less the sum of

Storage Fuel Use and LUFG, if any, and Fuel Use and LUFG, and the

total Dth or quantity of Gas received by Shipper at the Point(s)

of Delivery at any given time under a Service Agreement.


Operational Alerts. See Section 20.


Operational Flow Orders or OFOs. See Section 20. An Operational

Flow Order is an order issued to alleviate conditions, inter alia,

which threaten or could threaten the safe operations or system

integrity of Transporter's system, or to maintain operations

required to provide efficient and reliable firm service. Whenever

Transporter experiences these conditions any pertinent order

should be referred to as an Operational Flow Order.


Operator shall mean the person or entity that is responsible for

operating facilities immediately upstream of Transporter's system.


Oversupplies shall mean an Imbalance existing at any given time

consisting of an excess in the quantities which Shipper provided

to Transporter at Receipt Points, including Storage Points of

Withdrawal, over the quantities received by Shipper at Point(s) of



Overrun Gas. See Section 5.3 of Rate Schedules FT, EFT and IT.


Penalty Base Period. See Section 31.2.


Perryville Hub Header shall mean an area containing those

Perryville Hub Points of Delivery and Perryville Hub Points of

Receipt located on yard and station piping at the end of Line CP

and Line FM-63 in Richland Parish, Louisiana, including Line FM-

65, which extends into Franklin Parish, Louisiana. Perryville Hub

Points of Delivery and Receipt shall be labeled with Header to

identify all Perryville Hub Header points of delivery and receipt.