El Paso Natural Gas Company

Second Revised Volume No. 1A

Effective Date: 04/01/2010, Docket: RP10-454-001, Status: Effective

First Revised Sheet No. 479A First Revised Sheet No. 479A

Superseding: Original Sheet No. 479A

FORM OF TRANSPORTATION SERVICE AGREEMENT

APPLICABLE TO INTERRUPTIBLE TRANSPORTATION SERVICE

UNDER RATE SCHEDULE IT-1

(Continued)

10. Effect on Prior Period Agreement(s): When this Agreement becomes

effective, it shall (supersede and cancel -or- amend and restate) the

following agreement(s) between the Parties: ___________________________

11. Notices, Statements, and Bills:

To Shipper:

__________________________

Attn: __________________________

To Transporter:

__________________________

Attn: __________________________

Routine communication may be mailed by ordinary mail or posted on El

Paso's EBB. Operating communications by telephone, facsimile or other

mutually agreeable means shall be considered as duly delivered without

subsequent written confirmation. Payments to El Paso for services

rendered hereunder shall be made in accordance with Section 12 of the

General Terms and Conditions.

12. Changes in Rates and Terms: Transporter shall have the right to propose

to the FERC changes in its rates and terms of service, and this Agreement

shall be deemed to include any changes which are made effective pursuant

to FERC Order or regulation or provisions of law, without prejudice to

Shipper's right to protest the same.

13. Governing Law: Transporter and Shipper expressly agree that the laws of

the State of Colorado shall govern the validity, construction,

interpretation and effect of this Agreement and of the applicable Tariff

provisions. This Agreement is subject to all applicable rules,

regulations, or orders issued by any court or regulatory agency with

proper jurisdiction. (Agreements executed prior to January 1, 2006 will

be subject to the governing law provisions stated in such Agreements.)