Questar Overthrust Pipeline Company

Second Revised Volume No. 1-A

Effective Date: 01/01/2008, Docket: RP07-169-003, Status: Effective

First Revised Sheet No. 31 First Revised Sheet No. 31 : Effective

Superseding: Original Sheet No. 31

GENERAL TERMS AND CONDITIONS

These General Terms and Conditions apply to the transportation service

provided under Rate Schedules FT and IT of Overthrust's FERC Gas Tariff,

Second Revised Volume No. 1-A.

1. DEFINITIONS

1.1 Alternate receipt or delivery point means any point where gas is

received into or delivered out of Overthrust's system that is not listed as a

primary receipt or delivery point in Shipper's Rate Schedule FT

transportation service agreement.

1.2 Authorized overrun means that quantity of gas authorized by

Overthrust in excess of the RDC specified in the applicable firm

transportation service agreement.

1.3 Bidding period means that period of time that released or

uncommitted firm capacity is posted on Overthrust's informational postings

and Questline during which Shippers may bid for capacity.

1.4 Bidding Shipper means any Shipper that is qualified to bid for

capacity via Overthrust's Web site.

1.5 Btu means one British thermal unit, which is the amount of heat

required to raise the temperature of one pound of water one degree from 59

degrees to 60 degrees Fahrenheit. "MMBtu" means one million Btu's.

1.6 Capacity release means the release by a firm Shipper of its

capacity.

1.7 CHDP Limit means the temperature set forth in §14.9(a) at which

Overthrust will accept all deliveries of natural gas provided that such gas

satisfies all other applicable provisions of Overthrust's FERC Gas Tariff.

1.8 CHDP Operating Limit means the CHDP temperature that is at or

above the CHDP Limit that Overthrust is willing to accept on a temporary

basis as operationally feasible given transitory operating conditions. In no

case will the CHDP Operating Limit be set lower that the CHDP Limit.

1.9 Cricondentherm Hydrocarbon Dew Point Temperature (CHDP) means the

maximum hydrocarbon dew point temperature calculated for a specific gas

composition over a range of pressures from 100 pounds psia up to the maximum

allowable operating pressure (MAOP) of the pipe.

1.10 Cubic foot means the volume of gas which would occupy a space of

one cubic foot at a temperature of 60 degrees Fahrenheit and at a pressure of

14.73 pounds per square inch absolute.