Mississippi Canyon Gas Pipeline, LLC

First Revised Volume No. 1

Effective Date: 09/01/2002, Docket: RP00-391-001, Status: Effective

Second Revised Sheet No. 108 Second Revised Sheet No. 108 : Effective

Superseding: First Revised Sheet No. 108

GENERAL TERMS AND CONDITIONS (cont'd)

13.2 Resolution of Monthly Imbalances (f) - (cont'd)

In the event NGI or specific postings contained

therein is discontinued, Transporter will revise

this subsection 13.2(e) to substitute another

price index generally reflective of a gas price at

the Delivery Points. Until Transporter receives

approval from the Commission to use such

substitute index, Transporter will continue to

calculate the Index Price each month based on the

remaining postings.

(g) In the event there is a prior period adjustment to

the quantities of gas booked under Shipper's

Transportation Service Agreements due to metering

errors or other error attributable to

Transporter's responsibilities under its Tariff,

the quantity of such adjustment shall be cashed

out at 100% of the Index Price for the month in

which the error occurred.

(h) The provisions of Section 14 shall apply to

payments due pursuant to this section.

13.3 Trading Service

On or before the tenth (10th) business day following

the end of a month, Transporter shall post on its

Internet Web Site the Net Monthly Imbalance accrued by

each Shipper hereunder during the previous month.

After the Net Monthly Imbalances are posted, Shippers

will have five (5) business days (Trading Period)

within which to trade offsetting Net Monthly

Imbalances. Both Shippers that agree to trade all or

part of their Net Monthly Imbalances must notify

Transporter's Transportation Service Department in

writing on the form of Confirmation Of Agreement to

Trade Imbalances by 5:00 p.m. Central Clock Time on the

last day of the Trading Period, otherwise the trade

will not be effective.