Mississippi Canyon Gas Pipeline, LLC

First Revised Volume No. 1

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Effective Date: 11/01/2009, Docket: RP10-12-000, Status: Pending

Third Revised Sheet No. 108 Third Revised Sheet No. 108

Superseding: Second 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.

[Trading Election Form and Confirmation of Agreement to Trade

Imbalances Form shall be available for downloading on

Transporter's Internet Web Site.]