Viking Gas Transmission Company

Original Volume No. 1

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Effective Date: 11/01/1993, Docket: RS92- 52-001, Status: Effective

Original Sheet No. 26 Original Sheet No. 26 : Superseded

RATE SCHEDULE AOT

INTERRUPTIBLE TRANSPORTATION SERVICE

1. AVAILABILITY

This Rate Schedule is available for the transportation of natural gas on an interruptible

basis by Transporter for any Shipper which

(i) received service under Rate Schedule AO or authorized overrun transportation

service under Rate Schedule T-9 prior to November 1, 1992, provided that the

quantity of service received by Shipper under this Rate Schedule shall not exceed

the quantity of authorized overrun service received by Shipper under Rate Schedule

AO or T-9; and

(ii) has elected service under this Rate Schedule and has executed a Transportation

Agreement.

2. APPLICABILITY AND CHARACTER OF SERVICE

2.1 Interruptible transportation services under this Rate Schedule shall be provided when

and to the extent that Transporter determines that capacity is available in its existing

facilities without detriment or disadvantage to Transporter's firm transportation

customers. Transporter may interrupt service to any Shipper under this Rate Schedule at

any time and without prior notice to the extent required to provide service to any firm

transportation customer under Rate Schedules FT-A, FT-GS or LMS. Interruption of

service includes decreasing, suspending, or discontinuing either the receipt or delivery

of gas. Interruption and the allocation of available interruptible capacity shall be in

accordance with Article III of the General Terms and Conditions.

2.2 Transporter shall not be required to install, operate or maintain any additional

facilities in order to provide transportation service under this Rate Schedule.

Further, Transporter shall not be required to provide any service that threatens the

integrity of its system.

2.3 Transporter shall not be required to transport gas under this Rate Schedule when the

total quantity of gas scheduled for transportation is less than that required to operate

existing compression facilities necessary to provide such transportation service unless

the shipper requesting such service provides at its own cost the additional quantity of

gas required to operate such facilities.

3. QUALIFICATION FOR SERVICE

3.1 All Shippers requesting new interruptible transportation service must qualify for

service pursuant to Article XXII of the General Terms and Conditions of Transporter's

FERC Gas Tariff.