Colorado Interstate Gas Company

First Revised Volume No. 1

Effective Date: 06/01/2010, Docket: RP10-689-000, Status: Effective

First Revised Sheet No. 174A First Revised Sheet No. 174A

Superseding: Original Sheet No. 174A

RATE SCHEDULE SS-1

Interruptible Swing Service

1. AVAILABILITY

1.1 This Rate Schedule is available to any Operator, as defined in

Section 1 of the General Terms and Conditions of this Tariff that

currently receives or will receive Gas at a Point of Delivery where

service under Rate Schedule SS-1 may be provided. This service will

be provided by Transporter, and provides for quantity swings for

eligible Operators on an interruptible basis and subject to

available capacity, when the Operator desires swing service, and

when:

(a) Operator has made a request for Interruptible Swing Service

pursuant to the provisions set forth in Section 4 of the

General Terms and Conditions;

(b) Operator has met the service requirements specified in Section

4 of the General Terms and Conditions, including the

creditworthiness conditions specified in Section 4.14 of the

General Terms and Conditions; and

Service Agreement ("Agreement") pursuant to the terms of this

Rate Schedule;

2. APPLICABILITY AND CHARACTER OF SERVICE

2.1 This Rate Schedule SS-1 is available to any Operator and shall allow

the Operator to receive more or less than the Scheduled Quantities

of Gas at designated Point(s) of Delivery. Scheduled Transportation

Service shall be allocated based on the confirmed Nominations of the

underlying Transportation Service agreement(s). Quantities Delivered

above or below Daily Scheduled Quantities shall be allocated to the

Agreement and shall be subject to the provisions of the Agreement

and the General Terms and Conditions.