Colorado Interstate Gas Company

First Revised Volume No. 1

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

Thirteenth Revised Sheet No. 8A Thirteenth Revised Sheet No. 8A

Superseding: Twelfth Revised Sheet No. 8A

STATEMENT OF RATES FOR TRANSPORTATION/STORAGE OF NATURAL GAS

(Continued)

Rates per Dth

(Note 1)

-------------------

Rate Schedule Minimum Maximum

------------- ------- -------

TSB-T: (Note 12)

Phase 3 - Reservation Rates

R1 Rate(Monthly Rate)(Note 6)...................... $0.0000 $15.7775

High Plains...................................... $0.0000 $4.1979

Storage Deliverability........................... $0.0000 $5.7898

Storage Capacity................................. $0.0000 $5.7898

Commodity Injection Rate............................. $0.0782 $0.0782

Commodity Delivery Rate.............................. $0.0794 $0.0794

Daily Authorized Delivery Overrun Rate .............. $0.0012 $0.1392

Daily Authorized Injection/Withdrawal Overrun Rate... $0.0782 $0.1903

Daily Authorized Storage Capacity Overrun Rate....... $0.0782 $0.1654

Daily Unauthorized Overrun Rate (Note 7) -

Greater of 100 Dth or 3% of MDQ, TMDIQ, TMDWQ or TMAC. $1.0374

Greater of 2,500 Dth or 5% of MDQ, TMDIQ, TMDWQ or TMAC

(Non-Critical Condition)..................... $2.5935

Greater of 2,500 Dth or 5% of MDQ, TMDIQ, TMDWQ or TMAC

(Critical Condition)......................... $5.1870