Questar Southern Trails Pipeline Company

Original Volume No. 1

Effective Date: 08/01/2009, Docket: RP09-780-000, Status: Effective

First Revised Sheet No. 34 First Revised Sheet No. 34

Superseding: Original Sheet No. 34

GENERAL TERMS AND CONDITIONS

1.26 Month means the period beginning at 9:00 a.m. CCT on the first

day of any calendar month and ending at the same hour on the first day of the

succeeding calendar month.

1.27 Operational flow order (OFO) means an order issued to alleviate

conditions, inter alia, which threaten or could threaten the safe operations

or system integrity, of Southern Trails' system or to maintain operations

required to provide efficient and reliable firm service. Whenever Southern

Trails experiences these conditions, any pertinent order shall be referred to

as an operational flow order.

1.28 Operational balancing agreement (OBA) means a contract between two

parties, which specifies the procedures to manage operating variances at an

interconnect.

1.29 Posting of Released Capacity means the following:

(a) Pre-arranged capacity release not requiring a bid: that time

when both (1) the releasing Shipper has correctly completed the capacity

release offer and (2) the pre-arranged replacement Shipper has correctly

completed the bid (confirmation) for that offer on Questline.

(b) Capacity release requiring a bid: that time when the

releasing Shipper has correctly completed the capacity-release offer on

Questline.

1.30 Primary receipt and delivery point means a receipt or delivery

point on Southern Trails' system where the Shipper has contracted for firm

capacity.

1.31 Products means liquid and liquefiable hydrocarbons, inerts

(including, but not limited to, helium and nitrogen), sulfur, water and any

other component of gas removed by processing or compression, or by means of

drips or separators.

1.32 Psia expresses pressure in pounds per square inch absolute.

1.33 Psig expresses pressure in pounds per square inch gauge.

1.34 Questline means the contracting/capacity release and

nominations/confirmations systems.