Centerpoint Energy - Mississippi River

Third Revised Volume No. 1

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Effective Date: 01/21/2008, Docket: RP08-135-000, Status: Effective

Fourth Revised Sheet No. 122 Fourth Revised Sheet No. 122 : Effective

Superseding: Third Revised Sheet No. 122

GENERAL TERMS AND CONDITIONS

(Continued)

8. NOMINATIONS, SCHEDULING, AND CURTAILMENT (Continued)

8.2 Scheduling Procedures

(a) Storage services will be scheduled in the following order,

from highest to lowest priority:

(i) Firm storage injections and withdrawals within the

limits of the injection and withdrawal schedules set forth in Rate

Schedule FSS.

(ii) Interruptible and authorized overrun (AOR) storage

service from highest to lowest rate. In the event there is

insufficient capacity or daily storage deliverability to schedule

all such services at the same rate, MRT shall allocate the

available capacity or daily storage deliverability pro rata based

upon confirmed nominations.

(b) Definitions

(i) The term "Line Priority" shall mean the quantities

on a particular line within a rate zone (i.e., West Line, Main

Line or East Line) for receipts, or the sum of a Customer's

Primary Delivery Point quantities on a particular line within a

rate zone for deliveries pursuant to the Service Agreement

being utilized, as adjusted to reflect any released capacity.

(ii) The term "Rate Zone Capacity" shall mean the total

amount of firm capacity a Customer has contracted for in a

particular rate zone on MRT's system pursuant to the Service

Agreement being utilized, as adjusted to reflect any released

capacity.

(iii) The term "Line Capacity" (West Line, Main Line, or

East Line) shall mean the total amount of capacity a Customer has

contracted for in a particular line based on its Primary Path

pursuant to the Service Agreement being utilized, as adjusted to

reflect any released capacity consistent with the terms of a

temporary release. The Line Capacity on the West Line for a

Customer with a forwardhaul Primary Path that includes primary

receipt point(s) on the West Line shall be based on a pro rata

share, specified in its Service Agreement, of the total daily

amount of available capacity on the West Line.