Colorado Interstate Gas Company

First Revised Volume No. 1

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

Sixth Revised Sheet No. 248 Sixth Revised Sheet No. 248

Superseding: Fifth Revised Sheet No. 248

GENERAL TERMS AND CONDITIONS

(Continued)

3.5(a) continued

the input factor to within the specified range as soon as

possible. Transporter shall use its best efforts to keep the

input factor within the 1200 plus or minus 6.2 percent range.

Shippers receiving Gas with an input factor varying from 1200 by

more than plus or minus 6.2 percent shall be notified within 30

minutes of the discovery of the excess variation. Any Gas

received by Transporter on the Valley Line shall meet the input

factor of 1200 plus or minus 6 percent at all times.

(b) Gas Tendered to Transporter south of the Keyes Station shall not

contain more than 500 parts per million (0.05 percent) by volume

of oxygen at a pressure of 14.73 p.s.i.a. and a temperature of

60 degrees Fahrenheit. However, Transporter may accept Gas

Tendered that contains no more than 2000 parts per million (.200

percent) by volume of oxygen at such Point(s) of Receipt if

Transporter, in its reasonable discretion and judgment,

determines that such acceptance will not interfere with

Transporter's obligations to: (1) maintain prudent and safe

operation of Transporter's pipeline system and storage

facilities, (2) ensure that such Gas does not adversely affect

Transporter's ability to provide service to others, and (3)

ensure that such Gas does not adversely affect Transporter's

ability to Tender Gas for Delivery to a downstream pipeline or

end-user.

Station and Campo (Transporter's line designation 3C) and the

16-inch transmission line between Sturgis Station and Keyes

Station (Transporter's line designation 40A) shall have a Gross

Heating Value of no lower than 400 Btu's per standard cubic

foot. However, Transporter may accept Gas Tendered with a Gross

Heating Value lower than 400 Btu's per standard cubic foot if