Centerpoint Energy Gas Transmission Company

Sixth Revised Volume No. 1

Effective Date: 03/18/2010, Docket: RP10-383-000, Status: Effective

Fifth Revised Sheet No. 270 Fifth Revised Sheet No. 270

Superseding: Fourth Revised Sheet No. 270

RATE SCHEDULE PHS

PERRYVILLE HUB® SERVICE

(continued)

2. APPLICABILITY AND CHARACTER OF SERVICE (continued)

2.12 If the receipt, return or removal of Gas in Shipper's parked or

borrowed account, as applicable, is scheduled and adequate

quantities are not tendered or taken at the applicable point(s),

Transporter will not debit or credit such deficient quantities to

the account(s).

2.13 For purposes of Section 5.7(c)(ii)(2)B. of the General Terms and

Conditions, interruptible quantities transported under this Rate

Schedule will be considered quantities transported under Rate

Schedule IT.

2.14 A Shipper may request the AutoPAL service option under which

activity, including Imbalances, occurring at any time, or from

time to time, under one or more of its other Service Agreements

under other Rate Schedules will be deemed to be activity into its

park account, or out of its loan account, under its Rate Schedule

PHS Service Agreement without the need for a separate nomination.

Election of this automatic option shall be designated on the Rate

Schedule PHS Service Agreement together with applicable

quantities, points, time periods and/or other operational

parameters related to such automatic activity. The provision of

this service option shall be subject to the priority described in

Section 2.10(c) above and subject to suspension or other

limitations as required during actions taken pursuant to Section

20 of the General Terms and Conditions.

2.15 A Shipper may request the Nomination Balancing Service (NBS)

option under which that Shipper will nominate parking and/or

loaning transactions for purposes of eliminating discrepancies

between its receipt and delivery nominations under its Service

Agreement(s). Election of this option shall require a separate

Rate Schedule PHS Service Agreement for each Shipper. No MAQ,

maximum or minimum daily quantities will be specified in the

Service Agreement, and daily park and loan quantities and points

will be determined in the nomination, confirmation and scheduling

process. The provision of service under the NBS option shall be

subject to the priority described in Section 2.10(c) above and

subject to suspension or other limitations as required during

actions taken pursuant to Section 20 of the General Terms and

Conditions.