Colorado Interstate Gas Company

First Revised Volume No. 1

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

Eighth Revised Sheet No. 249 Eighth Revised Sheet No. 249

Superseding: Seventh Revised Sheet No. 249

GENERAL TERMS AND CONDITIONS

(Continued)

3.5 (continued)

(d) All Gas Delivered by Transporter on High Plains at the East

Denver Point of Delivery and on the 9B pipeline may be blended

with air and shall be at an input factor (heating value divided

by the square root of the specific gravity) of 1,200, plus or

minus 6.2 percent as much of the time as possible. If the

transporter is unable to maintain the 1200 plus or minus 6.2

percent input factor limits, then the transporter will maintain

an input factor limit of 1200 plus 11.5 percent or minus 6.2

percent on a daily basis. However, should situations occur on an

hourly basis such that Transporter is unable to maintain the

input factor within the above specified range, Shippers agree to

extend such ranges up to 1200 plus 12.7 percent or minus 7.8

percent, to allow required quantities to be Delivered.

Transporter will endeavor to keep such occurrences to a minimum

and to return the input factor to within the specified range as

soon as possible. Transporter shall use good faith efforts to

operate the existing facilities 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 of the discovery of the

excess variation as soon as practicable.

3.6 Specification of Gas Delivered Requiring Input Factors. All Gas

Delivered by Transporter to the following delivery points shall be

at an input factor (heating value divided by the square root of the

specific gravity) of 1,319, plus or minus 6 percent: Carpenter

Burns, Cheyenne, Pine Bluffs, Terry, Green Valley, First Creek,

Second Creek, Ft. Lupton, Greeley Group and Brush Group Delivery

Points.

3.7 Quality Tests. The Party operating the measuring equipment, using

approved standard methods in general use in the Gas industry, shall

cause adequate tests to be made to determine the quality of the Gas

Tendered hereunder. Such tests shall be made at intervals

frequently enough to ensure that the Gas conforms to the

specifications hereof.