Colorado Interstate Gas Company

First Revised Volume No. 1

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

Third Revised Sheet No. 78A Third Revised Sheet No. 78A

Superseding: Second Revised Sheet No. 78A

RATE SCHEDULE TSB-Y

TRANSPORTATION - YOUNG STORAGE BALANCING SERVICE - FIRM

1. AVAILABILITY

1.1 This Rate Schedule is available to any Party (hereinafter referred

to as "Shipper") for the transportation and storage balancing of

natural gas on the High Plains System. Transporter's ability to

provide service under this Rate Schedule is based on, and limited

to, its acquired capacity in Young Storage. Service under this Rate

Schedule will be provided on a firm basis by Transporter, when:

(a) Shipper makes a complete request for Transportation - Young

Storage Balancing Service in accordance with Section 4 of the

General Terms and Conditions of the Tariff;

(b) Transporter has determined that, other than necessary taps,

valves, measurement equipment and other minor facilities

necessary to effectuate service at any new or existing Point of

Delivery (which Transporter shall provide upon written request

and on a not unduly discriminatory basis at reasonable,

mutually agreeable locations which will not adversely affect

the existing operation of Transporter's system or significantly

alter the operation of the pipeline system), Transporter has

available or will secure sufficient uncommitted transmission

and Young Storage capacity to provide the service requested by

Shipper as well as its other firm service commitments;

of the General Terms and Conditions and the creditworthiness

conditions specified in Section 4.14 of the General Terms and

Conditions; and

(d) Shipper (i) has entered into a Transportation Service agreement

under Transporter's Rate Schedule TF-HP for Transportation of

Gas for injection into the Young storage facility and such

TF-HP agreement shall also include the same Primary Point(s) of

Delivery as the Rate Schedule TSB-Y Agreement. The Maximum

Delivery Quantity ("MDQ") specified in such Agreement must be

equal to or greater than Shipper's Young Maximum Daily

Injection Quantity ("YMDIQ") as set forth in Shipper's Rate

Schedule TSB-Y Agreement and the term of the Firm

Transportation Service Agreement; and