Questar Overthrust Pipeline Company

Second Revised Volume No. 1-A

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

Original Sheet No. 13 Original Sheet No. 13 : Effective

RATE SCHEDULE FT

FIRM TRANSPORTATION SERVICE

permitted or required by the FERC. Nothing in this section limits Shipper's

rights to contest such changes, nor limits the rights of Shipper and

Overthrust to provide for changes in rates through the terms of the

transportation service agreement.

3.3 Flexible Rates. Nothing in this tariff limits Overthrust's right

to implement different rates in transportation service agreements with other

Shippers under this rate schedule within the ranges set forth in the

Statement of Rates.

Overthrust shall file with the Commission any and all reports as

required by the Commission's Regulations setting forth the applicable

charges, the individual shippers affected, the volume transported and any

other information that may be required.

3.4 Negotiated Rates. Notwithstanding anything to the contrary

contained in this tariff, Overthrust and Shipper may, as provided in § 31

(Negotiated Rates) of the General Terms and Conditions, negotiate a rate for

service under this rate schedule. Overthrust's rates, as shown on its

Statement of Rates, are available as recourse rates for any Shipper that does

not desire to negotiate a rate with Overthrust. An agreement by the Shipper

to accept a negotiated rate does not, in any manner, restrict the Shipper's

right to elect recourse rates for other services not covered by the

negotiated-rate agreement. This provision, in and of itself, does not allow

Overthrust and Shipper to negotiate terms and conditions of service.

4. REGULATORY FEES

Shipper shall reimburse Overthrust for all fees required by the FERC or

any other regulatory agency to implement the service provided under this rate

schedule. Overthrust will issue its statement to Shipper setting forth the

fees paid by Overthrust to implement the service. The amount to be

reimbursed shall be paid by Shipper with the next payment for service

following receipt of Overthrust's statement.