Questar Overthrust Pipeline Company

Second Revised Volume No. 1-A

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Effective Date: 04/25/2007, Docket: RP07-360-000, Status: Effective

Original Sheet No. 92 Original Sheet No. 92 : Effective




(d) Shippers are responsible for making whatever arrangements

they deem necessary to finalize and document the imbalance trade among



(e) Overthrust shall not be liable for any losses incurred by a

Shipper if a Shipper is unable to complete an imbalance trade once Shipper

has notified Overthrust of the imbalance trade.


16.4 Imbalance Payback Option. Subject to available transportation

capacity, operational constraints and approval by Overthrust during the

remainder of the month after notification of its monthly imbalance, a Shipper

may eliminate its prior month's imbalance through either a physical payback

or take of gas in lieu of or in connection with imbalance trading.

Nominations to reduce the previous monthly imbalance must be specifically

designated for that purpose. Overthrust will consider each Shipper's request

to exercise its option under this section and will, on a nondiscriminatory

basis, and subject to prudent operational practices, honor the request.


16.5 Cash Out. All remaining imbalances at the end of the month will

be subject to the following Cash-Out provisions. However, if a Shipper

cannot cure an imbalance due to force majeure, Overthrust will extend the

time period for the Shipper to pay back an imbalance for a period equal to

the length of the force majeure event.


(a) Cash-out volumes are those volumes that remain at the end of

the month following the month the imbalance occurred less any imbalance

trades and specific payback volumes.


(b) Shippers' imbalance shall be cashed out at a price

calculated by multiplying the imbalance by the applicable rates as determined