Overthrust Pipeline Company

First Revised Volume No. 1-A

Effective Date: 05/08/1998, Docket: RP98-184-000, Status: Effective

Fourth Revised Sheet No. 34 Fourth Revised Sheet No. 34 : Superseded

Superseding: Third Revised Sheet No. 34

1.23 "Month" means the period beginning at 8:00 a.m.

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

same hour on the first day of the succeeding calendar month.

1.24 "Mountain time" means the time zone applicable to

all clock times identified throughout this FERC Gas Tariff.

1.25 "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 Overthrust's system or to maintain operations required to

provide efficient and reliable firm service. Whenever

Overthrust experiences these conditions, any pertinent order

shall be referred to as an operational flow order.

1.26 "Operational Balancing Agreement" (OBA) means a

contract between two parties, which specifies the procedures

to manage operating variances at an interconnect.

1.27 "Prospective Firm Shipper" shall mean an entity

that has submitted a request for new or additional firm

transportation service.

1.28 "Receipt point" means a point where Overthrust

receives gas from or for the account of Shipper for

transportation on the system.

1.29 Releasing Shipper means any Shipper holding firm

capacity rights under a transportation service agreement

under Rate Schedule FT that releases firm capacity.

1.30 Replacement Shipper means any Shipper that

acquires firm released capacity from a releasing Shipper.

1.31 "Request for Service" means a written or an

electronic request for service submitted by any party under

6 and 7 of the General Terms and Conditions.

1.32 "Reserved daily capacity (RDC)" means the

quantity of gas in Dth per day that Overthrust is obligated

to receive, transport and deliver to Shipper on a firm

basis.