Colorado Interstate Gas Company

First Revised Volume No. 1

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

Fifth Revised Sheet No. 421 Fifth Revised Sheet No. 421

Superseding: Fourth Revised Sheet No. 421

FORM OF STORAGE SERVICE AGREEMENT

APPLICABLE TO RATE SCHEDULE FS-Y

(Continued)

7. Young Maximum Available Capacity ("YMAC"): ___________________ Dth.

Young Maximum Daily Injection Quantity ("YMDIQ"): _____Dth per Day.

Young Maximum Daily Withdrawal Quantity ("YMDWQ"): ____Dth per Day.

(Insert again if Quantities change during the term of service)

All storage entitlements as stated herein ("YMAC", "YMDIQ" and "YMDWQ")

are based on an Average Thermal Content of Gas in Young Storage of 1,000

Btu per cubic foot. The Young Available Daily Injection Quantity

("YADIQ"), Young Available Daily Withdrawal Quantity ("YADWQ"), and

storage entitlements shall be subject to the General Terms and Conditions

of the Tariff, and stated on Transporter's Electronic Bulletin Board.

8. Negotiated Rate: Yes____ No_____

9. Term of Firm Young Storage Service:_____

[Insert term of service including any (i) construction contingencies, (ii)

extension rights such as an evergreen or rollover provision, (ii)

contractual rights of first refusal and/or (iv) related termination

provisions, as applicable.]

10. Notices, Statements, and Bills:

To Shipper: ___________________________________

___________________________________

Attn: ___________________________________

Invoices:

All Notices: ___________________________________

___________________________________

Attn: ___________________________________

To Transporter:

See "Points of Contact" in the Tariff.

11. Effect on prior Agreement: ______________________________.