Colorado Interstate Gas Company

First Revised Volume No. 1

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

Fourth Revised Sheet No. 168 Fourth Revised Sheet No. 168

Superseding: Third Revised Sheet No. 168

RATE SCHEDULE IS-T

TOTEM STORAGE SERVICE - INTERRUPTIBLE

1. AVAILABILITY

1.1 This Rate Schedule is available to any Party (hereinafter referred

to as "Shipper") for the storage of natural Gas in Totem Storage by

Transporter when Shipper desires interruptible Totem Storage

Service. Interruptible Totem Storage Service is subject to

available Totem Storage capacity; and

(a) Shipper has made a Request for Totem Interruptible Storage

Service pursuant to the provisions set forth in Section 4 of

the General Terms and Conditions;

(b) Shipper and Transporter have executed a Totem Storage Service

Agreement - Interruptible ("Agreement") pursuant to the terms

of this Rate Schedule;

service agreement providing service for transportation to

Transporter's Totem Storage facilities for injection, and/or

(b) receipt of Gas from Transporter's Totem Storage facilities

upon Withdrawal; and

(d) Shipper 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.

2. APPLICABILITY AND CHARACTER OF SERVICE

2.1 This Rate Schedule IS-T shall apply to Totem Storage service

rendered by Transporter to Shipper on a completely interruptible

basis subject to the limitations set forth in the Agreement, this

Rate Schedule IS-T, and the General Terms and Conditions.

2.2 Storage Service hereunder is interruptible and subject to

interruption at any time and such interruptions may be in effect

for extended periods of time. Storage Service under this Rate

Schedule will be performed when in Transporter's sole judgment

Transporter has capacity available to provide such storage without

detriment or disadvantage to Transporter's firm obligations.