Midwestern Gas Transmission Company

Third Revised Volume No. 1

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Effective Date: 03/01/2006, Docket: RP06-182-000, Status: Effective

Original Sheet No. 113 Original Sheet No. 113 : Effective

RATE SCHEDULE TPB

THIRD PARTY BALANCING SERVICE

2. APPLICABILITY AND CHARACTER OF SERVICE (Continued)

2.2 Character of Service (Continued)

2.23 Physical Interconnections Comprising Balanced Point

The Balancing Provider and Company shall mutually agree to the

physical interconnection(s) that will satisfy the physical flow

requirements of gas under this Agreement. At least one of the

physical interconnection(s) shall have flow control capability

accessible to Company and shall be designated by the Balancing

Provider to take swing quantities of gas in order that real time

flow adjustments can be made by Company to assure that any daily

operational imbalance at the Balanced Point is maintained at or

near zero.

The Variable Load Point, designated physical interconnection(s)

and the Balanced Point shall be treated as a single location for

nomination and scheduling purposes.

2.24 Predetermined Allocation Methodology

In the event more than one Balancing Provider is providing

balancing service to a Variable Load Point Customer at the same

Variable Load Point, the operator of that Variable Load Point

shall provide Company with a predetermined allocation method

(agreed to by Variable Load Point Customer and the Balancing

Providers).

2.25 Operational Imbalances

The Balancing Provider shall be responsible for managing any

operational imbalance created under this Rate Schedule. Daily

allocated measured quantities of natural gas at the various

physical interconnection(s) comprising the Balanced Point shall be

totaled with the total daily allocated measured quantity at the

Variable Load Point to serve as the aggregated metered quantity

for the Balanced Point for that day. The difference between the

total scheduled quantity at the Balanced Point for a given day and

the corresponding aggregate metered quantity shall be treated as

an operational imbalance for such Gas Day.

2.26 Responsibility of Balancing Provider

Balancing Provider is responsible for ensuring it has sufficient

quantities of gas scheduled at the Balanced Point at any point in

time during the Gas Day on Company's system to meet the balancing

requirements under the Agreement.

Company shall monitor the instantaneous flow activity at the

Variable Load Point on a real time basis. If a change in such

instantaneous flow does occur, Company shall notify the Balancing

Provider, by phone, and shall adjust the instantaneous flow rates

at the physical point(s) of interconnection that are designated to

take swing quantities of gas.