Transcolorado Gas Transmission Company LLC

Second Revised Volume No. 1

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Effective Date: 12/28/2007, Docket: RP08-167-000, Status: Effective

Original Sheet No. 420 Original Sheet No. 420 : Effective

APPENDIX

ELECTRONIC DATA INTERCHANGE TRADING PARTNER AGREEMENT

between ______________________________

and _________________________________________________

DATE ____________

TO BE EFFECTIVE ____________ (DATE)

LIST OF EXHIBITS

EXHIBIT TRANSACTION NATURAL GAS DOCUMENT NAME

NUMBER SET NUMBER

All Exhibits, attached hereto are to be considered attached to the Appendix

and made a part thereof. Where there are any provisions specified both in the

Exhibit(s) and in the Appendix, those contained in the Exhibit(s) govern.

The undersigned do hereby execute this Appendix, which Appendix is attached to

and made a part of the above referenced Trading Partner Agreement. By

execution below the parties hereby ratify said Agreement for all purposes set

forth in this Appendix and the attached Exhibit(s).

COMPANY NAME: ____________________________________________________

BY: ____________________________________________________

PRINTED NAME: ____________________________________________________

TITLE: ____________________________________________________

COMPANY NAME: ____________________________________________________

BY: ____________________________________________________

PRINTED NAME: ____________________________________________________

TITLE: ____________________________________________________