Iroquois Gas Transmission System, L.P.

FIRST REVISED VOLUME NO. 1

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Effective Date: 11/01/2002, Docket: RP00-411-010, Status: Effective

Second Sub. Original Sheet No. 65C Second Sub. Original Sheet No. 65C : Effective

Superseding: Sub. Original Sheet No. 65C

ii) Trading example 1. A Shipper with a Zone 1-2 RTS contract

receives transportation in Zone 1 only at the Maximum Demand Rate

and the Maximum Commodity Rate on the first gas day of the month

which results in a Positive Imbalance of 100 Dths. A different

Shipper later with a Zone 1-2 RTS contract later receives

transportation under between Zone 1 and Zone 2 at the Maximum

Demand Rate and the Maximum Commodity Rate on the fifth gas day

of the month which results in a Negative Imbalance of -100 Dths.

The netting of these two imbalances would impose no cost.

iii) Trading example 2. A Shipper with an ITS contract

receives transportation in Zone 1 at a rate of $0.20/Dth on the

first gas day of the month which results in a Positive Imbalance

of 100 Dths. A different Shipper with an ITS contract receives

transportation between Zone 1 and Zone 2 at a rate of $0.20/Dth

on the last gas day of the month which results in a Negative

Imbalance of -100 Dths. The trading of these two

imbalances would impose no cost.