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. 75 Original Sheet No. 75 : Effective

GENERAL TERMS AND CONDITIONS

(b) Amendment requests for existing transportation service

agreements shall be posted no later than 9:00 a.m. the day nominations are

due. Overthrust will evaluate amendment requests in a timely manner except as

limited by § 7.12.

(c) Approved requests to change primary receipt or delivery

points or Shipper's RDC will be posted on Questline by 10:00 a.m. on the third

business day following the amendment request date except for limitations

explained in § 7.12, which will be posted the third business day following the

bid period.

(d) Overthrust will not allow amendments to contracts if the

result of the requested amendment impairs Overthrust's ability to provide firm

service. Any capacity at receipt and delivery points that becomes available

through the expiration of a firm transportation agreement will be sold

according to the bidding procedures outlined in §§ 7 and 9, and shall not be

available for primary receipt or delivery point changes unless Overthrust,

without undue discrimination, agrees otherwise.