Colorado Interstate Gas Company

First Revised Volume No. 1

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

Fifth Revised Sheet No. 322 Fifth Revised Sheet No. 322

Superseding: Fourth Revised Sheet No. 322

GENERAL TERMS AND CONDITIONS

(Continued)

8.3(b)(ii) (continued)

THE YOUNG AVAILABLE DAILY WITHDRAWAL QUANTITY FORMULA

%YMAC = Current Inventory/YMAC

------------------------------

%YMDWQ Calculation (1,2,3)

If the %YMAC is > or = to 60.12%

then set the %YMDWQ = to 100%

------------------------------------------

If the %YMAC is < 60.12% and > or = to 15%

then

%YMDWQ = (-15.3150) + (%YMAC * 2.6838) -

(%YMAC^2 * 0.0786) + (%YMAC^3 * 0.0011)

------------------------------------

If the %YMAC is < 15% and > 0%

then set %YMDWQ = to 11%

------------------------------------

If the %YMAC is < or = to 0%

then set the %YMDWQ = to 0%

------------------------------------

YADWQ Calculation

YADWQ = (%YMDWQ/100) * YMDWQ

Rounded to the nearest whole Dekatherm (an integer)

-----------------------

NOTE: In the context of this formula, the %YMAC and %YMDWQ values are

taken as whole numbers, and not as decimal only numbers (i.e., use

40.0 not 0.40 or use 36.1234 not 0.361234).

NOTE: The coefficients are entered with four decimal places, and the table

is calculated with four decimal places, and then rounded for display

purposes.

NOTE: All calculations are initially performed utilizing four decimal

places. The final YADWQ, however, is rounded to the nearest whole

number.