Reliant Energy Gas Transmission Company

Fifth Revised Volume No. 1

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Effective Date: 06/01/2002, Docket: RP96-200-081, Status: Effective

Second Revised Sheet No. 637 Second Revised Sheet No. 637 : Effective

Superseding: First Revised Sheet No. 637


Contract Rate Contract

Shipper Name Number Schedule Demand Receipt Point(s) Delivery Point(s) Rate

------------------------- ------ -------- -------- -------------------- -------------------------------------------------- ---------------

Dynegy Marketing and Trade 2901 FT 50,000 Neutral Pooling Area MidLa @ Ouachita Parish Gulf South @ West Monroe See Formula below

North Pooling Area MRT @ Perryville ANR @ Perryville

South Pooling Area Trunkline @ Richland Tennessee 100

West 1 Pooling Area SONAT @ Perryville

West 2 Pooling Area TET @ West Monroe

TGT @ Perryville

Columbia Gulf @ Perryville

Formula Rates for Services up to Contract Demand:


For eligible services up to 50,000 Dth/D, the monthly rate shall be 50,000 x the Aggregated Index Spread (means the sum of the Index Spreads determined for each Day of

the Month); in addition, Shipper pays incremental/add-on charges described below based on utilization of certain Receipt/Delivery Points. The formula rate will be a

unit rate calculated on an assumed 100% load factor basis using the formulas listed below based on daily Index Prices (Inside FERC) or Midpoint Prices (Gas Daily) for

spot gas delivered to the pipelines and areas indicated, for each day of the contract term; provided, however, in no event shall it be less than $0.06/Dth calculated on

a 100% load factor unit basis. If the information or publication ceases to be published, the parties shall select another mutually agreeable price or publication.

Transporter shall have the right each month to elect either the Gas Daily or Inside FERC formulas listed below by informing Shipper of the formula it has chosen for the

next month no later than the end of the sixth (6th) Business Day prior to the beginning of the next month. If Transporter does not notify Shipper of its election by

the time described above, the Gas Daily formula shall be utilized. The Index Spread each day under the applicable formula shall be equal to (a) the amount remaining

when the price specified in (1) of each formula below is subtracted from the price specified in (2) of each formula below, less (b) the Compressor Fuel Value calculated

as described below.

A. Gas Daily Formula B. Inside FERC Formula

(1) Reliant North/South (1) REGT East

(2) Texas Gas Zone 1 (2) Texas Gas Zone 1


However, if the calculation results in an amount less than $0.06, then the Index Spread for that day shall be $0.06. Compressor Fuel Value shall be calculated

by adding (i) the product of the applicable Compressor Fuel percentage as specified and in effect from time to time in REGT's Tariff times the applicable price set

forth in (1) above, plus (ii) the applicable EPC surcharge.


The applicable incremental fee or add-on if, and to the extent that, Shipper utilizes certain receipts:


For each Dth of receipts from the North Pooling Area, $0.03/Dth.


For each Dth of receipts from the West 1 or West 2 Pooling Areas, sixty percent (60%) of the difference between the Midpoint Prices (Gas Daily) for Reliant

North/South and Reliant West for spot gas delivered to the pipeline at the referenced locations for each applicable Day.