Colorado Interstate Gas Company

First Revised Volume No. 1

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

Fourth Revised Sheet No. 119 Fourth Revised Sheet No. 119

Superseding: Third Revised Sheet No. 119

RATE SCHEDULE FS-1

STORAGE SERVICE - FIRM

(Continued)

2. APPLICABILITY AND CHARACTER OF SERVICE

2.1 This Rate Schedule FS-1 shall apply to storage service rendered by

Transporter to Shipper under an Agreement. Service to a Shipper

hereunder shall be on a firm basis, based on an Average Thermal

Content of Gas in Storage of 1,000 Btu per cubic foot, and shall

consist of (1) a Maximum Available Capacity ("MAC") as stated in the

Agreement, (2) a Maximum Daily Injection Quantity ("MDIQ") and (3) a

Maximum Daily Withdrawal Quantity ("MDWQ").

(a) Service up to and including these levels is not subject to

interruption or curtailment by Transporter except as provided

in this Rate Schedule and the General Terms and Conditions of

this Tariff.

(b) Shipper's Storage Service Entitlements shall be adjusted as

provided in Section 1.2 of the General Terms and Conditions.

It shall be Shipper's responsibility to maintain an amount of

Gas in storage to satisfy its needs.

2.2 Hourly Rates of Flow available at Shipper's option under this rate

schedule.

(a) The Hourly Rates of Flow option is supported by the combination

of pipeline capacity and Storage Field responsiveness.

Therefore, Shipper must have on Transporter's transmission

system a Rate Schedule TF-1 Agreement in order for the Hourly

Rates of Flow option to be available. The Firm Transportation

Agreement must have the Point of Withdrawal and a Qualified

Point of Delivery on its Primary Receipt-to-Delivery Flow Path

and the contract quantity at the Point of Withdrawal must be

equal to or greater than the MDWQ of the associated Rate

Schedule FS-1 Agreement to be eligible.

(b) At the Point of Withdrawal, Quantities Scheduled for Delivery

to Shipper's associated Rate Schedule TF-1 Agreement (and

quantities scheduled for Delivery from such associated

Agreement) will be Delivered at uniform Hourly Rates of Flow.

However, Shippers electing the Hourly Rates of Flow option will

be subject to the following (Notices for Enhanced Hourly Flow

Rights shall be provided pursuant to Section 6.5 of the General

Terms and Conditions):