Centerpoint Energy Gas Transmission Company

Sixth Revised Volume No. 1

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

Tenth Revised Sheet No. 1 Tenth Revised Sheet No. 1

Superseding: Ninth Revised Sheet No. 1

TABLE OF CONTENTS Sheet No.

Preliminary Statement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

System Map . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

Statement of Effective Rates and Charges . . . . . . . . . . . . . . . . . . . . . . . . . 17

Rate Schedules:

FT - Firm Transportation Service . . . . . . . . . . . . . . . . . . . . . . . . . 46

EFT - Enhanced Firm Transportation Service . . . . . . . . . . . . . . . . . . . . . 60

FT-2 - Firm Transportation Service (with Minimum Flow Obligation) . . . . . . . . . . 81

ANS - Automatic Nomination Service . . . . . . . . . . . . . . . . . . . . . . . . . 91

IT - Interruptible Transportation Service . . . . . . . . . . . . . . . . . . . . . 108

NNTS - No Notice Transportation Service . . . . . . . . . . . . . . . . . . . . . . . 126

RSS - Reverse Storage Service . . . . . . . . . . . . . . . . . . . . . . . . . . . 146

FSS - Firm Storage Service . . . . . . . . . . . . . . . . . . . . . . . . . . . . 177

ISS - Interruptible Storage Service . . . . . . . . . . . . . . . . . . . . . . . . 209

PS - Pooling Service . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 228

SBS - Short-Term Balancing Service . . . . . . . . . . . . . . . . . . . . . . . . . 246

PHS - Perryville Hub® Service . . . . . . . . . . . . . . . . . . . . . . . . . . . 264

USS - Unbundled Sales Service . . . . . . . . . . . . . . . . . . . . . . . . . . . 287

General Terms and Conditions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 305

Information Required in Request for Transportation . . . . . . . . . . . . . . . . . . . . . 697

Form of Credit Application . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 724

Form of Transportation Service Agreement - (R.S. FT) . . . . . . . . . . . . . . . . . . . . 728

Form of Transportation Service Agreement - (R.S. EFT). . . . . . . . . . . . . . . . . . . . 737

Form of Transportation Service Agreement - (R.S. FT-2) . . . . . . . . . . . . . . . . . . . 739

Form of Transportation Service Agreement - (R.S. IT, PHS (Wheeling)) . . . . . . . . . . . . 742

Form of Attachment A Supplementing Rate Schedule IT, PHS (Wheeling)

And PS Transportation Service Agreement . . . . . . . . . . . . . . . . . . . . . . . . . . 745

Form of Transportation Service Agreement - (R.S. NNTS, RSS, FSS and ISS) . . . . . . . . . . 756

Form of Pooling Service Agreement - (R.S. PS). . . . . . . . . . . . . . . . . . . . . . . . 770

Form of Predetermined Allocation Agreement . . . . . . . . . . . . . . . . . . . . . . . . . 783

Form of Transportation Service Agreement - (R.S. PHS (Park and Loan)). . . . . . . . . . . . 786

Form of Agency/Asset Manager Authorization Agreement . . . . . . . . . . . . . . . . . . . . 788

Form of Rate Confirmation (R.S. IT, PHS (Wheeling)). . . . . . . . . . . . . . . . . . . . . 790

Form of Electronic Data Interchange Trading Partner Agreement . . . . . . . . . . . . . . . 799

Negotiated Rates . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 863