Colorado Interstate Gas Company

First Revised Volume No. 1

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

Fifteenth Revised Sheet No. 13 Fifteenth Revised Sheet No. 13

Superseding: Fourteenth Revised Sheet No. 13

STATEMENT OF RATES FOR TRANSPORTATION/STORAGE OF NATURAL GAS

FOOTNOTES

(Continued)

(6) For Capacity Release transactions only, Transporter has adopted the

following NAESB standards. On the bidding formats, the number of decimal

places for offers, bids and awards shall be equal to the number of

decimal places in Transporter's stated rates (NAESB Standard 5.3.21).

Converting a Daily rate to a Monthly rate is accomplished by multiplying

the Daily rate times the number of Days in the rate period, dividing the

result by the number of Months in the rate period, taking the remainder

out to 5 decimal places, and rounding up or down to the Transporter's

specified decimal place. Converting a Monthly rate to a Daily rate is

accomplished by multiplying the Monthly rate by the number of Months in

the rate period, dividing the result by the number of Days in the rate

period, taking the remainder out to 5 decimal places, and rounding up or

down to the Transporter's specified decimal place (NAESB Standard

5.3.22). Furthermore, for capacity release purposes, all Tariff rates

shall be adjusted to reflect a standard calculation of Daily and Monthly

rates, in conformance with NAESB Standard 5.3.23.

(7) Shippers with service under Rate Schedules NNT-1 or NNT-2 shall have a

one time option upon entering into an agreement of having a Daily

Unauthorized Overrun Rate as stated on the Statement of Rates. For such

Shippers an adjustment will be made to their Gas in Place based on the

quantity of Unauthorized Overrun in any Day. Shipper's not choosing this

option shall be subject to the Daily Unauthorized Overrun Rate stated

below with no adjustment to Gas in Place.

Daily Unauthorized Overrun Rate

Greater of 100 Dth or 3% of MDQ... 2 times TI-1 Maximum

Commodity Rate

Greater of 2,500 Dth or 5% of MDQ

(Non-Critical Condition)...... 2 times TI-1 Maximum

Commodity Rate

Greater of 2,500 Dth or 5% of MDQ

(Critical Condition).......... 10 times monthly

Spot Index Price

(8) See Section 17 of General Terms and Conditions for a description of this

Surcharge.

(9) Reserved for future use.