Colorado Interstate Gas Company

First Revised Volume No. 1

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

Second Revised Sheet No. 132A.04a Second Revised Sheet No. 132A.04a

Superseding: First Revised Sheet No. 132A.04a

RATE SCHEDULE FS-1

STORAGE SERVICE - FIRM

(Continued)

4. AUTHORIZED OVERRUN STORAGE

4.1 Daily Authorized Overrun Charges for Storage. On any Day, upon

request of Shipper, subject to the provisions of the Agreement,

including, but not limited to, the duty of Shipper not to exceed the

Reservoir Integrity Inventory Limit, Transporter may accept or

Deliver, on an interruptible basis, quantities in excess of

Shipper's ADIQ, ADWQ or MAC and Shipper shall pay for such overrun

service as follows:

(a) Daily Authorized Injection Overruns. An amount obtained by

multiplying the quantity injected into storage on any Day which

is in excess of Shipper's ADIQ by the Daily Authorized

Injection/Withdrawal Overrun Rate. The Daily Authorized

Injection/Withdrawal Overrun Rate shall be the applicable

maximum rate unless agreed to by Transporter and Shipper, any

such otherwise agreed rate shall not be less than the

applicable minimum recourse rate or more than the applicable

maximum recourse rate as set forth on the Statement of Rates.