Colorado Interstate Gas Company

First Revised Volume No. 1

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

Sixth Revised Sheet No. 179 Sixth Revised Sheet No. 179

Superseding: Fifth Revised Sheet No. 179

RATE SCHEDULE SS-HP

HIGH PLAINS INTERRUPTIBLE SWING SERVICE

(Continued)

4.2 Unless otherwise agreed on a non-discriminatory basis, Transporter

may require the Operator to cause a Nomination pursuant to Section

6.1 of the GT&C to be made in the next available Nomination cycle to

eliminate no more than 10 percent of its outstanding Rate Schedule

SS-HP balance or up to 5,000 Dth on any Day, whichever amount is

greater, by the end of the next full Gas Day under the following

conditions:

(a) The cumulative allocated balance under an Agreement at the end

of any Month is in the same direction as the previous Month

(i.e., either positive or negative).

(b) When, in Transporter's reasonable judgement such action is

necessary to allow Transporter to fulfill higher priority

commitments, or is required as a result of Transporter's

operational requirements.

(c) For Sections 4.2 (a) and (b) above, Transporter shall notify

Operator by telephone, and then by facsimile, e-mail or on

Transporter's Electronic Bulletin Board to reduce the

cumulative allocated balance as provided in this section above.

In the event a valid Nomination is submitted in response to

notification by Transporter to reduce the cumulative allocated

balance to zero, Operator shall be deemed to have complied with

Transporter's notification for that Gas Day. Cumulative

allocated balances (i) for overdeliveries not removed pursuant

to this section, or by the end of the term of an Agreement,

shall become the property of Transporter at no cost to

Transporter free and clear of any adverse claims and (ii) for

underdeliveries not returned pursuant to this section or by the

end of the term of an Agreement shall be sold to Operator at

150% of Transporter's Cash Out Index Price for the applicable

month.

5. HOURLY UNAUTHORIZED OVERRUN

5.1 Hourly Unauthorized Overrun. Hourly Deliveries of Gas in excess of

the Hourly aggregate Scheduled Quantities, including Hourly

Entitlement Enhancement Nominations authorized under transportation

agreements Delivered to Points of Delivery designated in the Rate

Schedule SS-HP Agreement shall be subject to the Hourly Unauthorized

Overrun Rate. Operator shall pay an amount obtained by multiplying

the largest quantity of such Hourly Unauthorized Overrun Gas during

any one Hour of a Day times 24, times the Hourly Unauthorized

Overrun Rate on the Statement of Rates.