Colorado Interstate Gas Company

First Revised Volume No. 1

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

Second Revised Sheet No. 376A Second Revised Sheet No. 376A

Superseding: First Revised Sheet No. 376A

GENERAL TERMS AND CONDITIONS

(Continued)

13.8 High Plains ("HP") Transportation Fuel Gas, HP L & U and Other Fuel

Gas, HP Incremental Gas Quality Fuel Gas, Young Storage Fuel and

Unaccounted-For Gas, and Totem Storage Fuel and Unaccounted-for Gas

Retention Percentages. HP Transportation Fuel Gas and HP L&U and

Other Fuel Gas retention percentages shall mean a quantity of Gas,

determined based on all Receipt Quantities required to provide High

Plains Transportation Service under this Tariff. HP Incremental

Gas Quality Fuel Gas retention percentage shall mean a quantity of

Gas used at the blending facilities, determined as a percentage of

HP Receipt Quantities using HP Incremental Fuel Gas for ultimate

delivery to East Denver Point of Delivery. Young Storage Fuel and

Unaccounted-For Gas retention percentage shall mean a quantity of

gas required to provide Young Storage related services. Totem

Storage Fuel and Unaccounted-For Gas retention percentage shall

mean a quantity of gas required to provide Totem Storage related

services. Said percentages shall be determined and adjusted

annually, and calculated as follows:

(a) For HP Transportation Fuel Gas, the percentage shall be

computed using the most recent twelve months of available

compressor data and shall be applied to Rate Schedules TF-HP

and TI-HP;

(b) For HP L & U and Other Fuel Gas, the percentage shall be

computed using the most recent twelve months of available

data and shall be applied to Rate Schedules TF-HP and TI-HP.

Such data shall include all HP receipts and deliveries and

all miscellaneous fuel cases recorded in FERC Account No.

812.

fuel used at the blending facilities to meet delivery

specifications at East Denver), the percentage shall be

computed using the most recent twelve months of available

data and shall be applied to Rate Schedules TF-HP and TI-HP;

and

(d) Young Storage Fuel and Unaccounted-For Gas shall be those

quantities retained by Young Gas Storage Company, Ltd.

related to Transporter's acquired Young Storage capacity and

shall be applied to Rate Schedules TSB-Y, FS-Y and IS-Y.

Transporter may adjust this percentage in an out-of-time

filing should Young Gas Storage Company, Ltd. change its fuel

and unaccounted-for reimbursement percentage(s).