Viking Gas Transmission Company

First Revised Volume No. 1

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Effective Date: 04/01/2007, Docket: RP07-316-000, Status: Effective

Seventh Revised Sheet No. 143 Seventh Revised Sheet No. 143 : Effective

Superseding: Sixth Revised Sheet No. 143

ELECTRONIC COMMUNICATION AGREEMENT

8. Any notice provided for in this Agreement shall be in writing and shall be considered

as having been given if sent by facsimile, delivered personally or if mailed by

postage prepaid to the following addressees, respectively.

Viking Gas Transmission Company Customer (Company Name and Address)

c/o ONEOK Partners GP, L.L.C.,

the Operator ___________________________________

P.O. Box 871

Tulsa, Oklahoma 74102-0871 ___________________________________

Attn: Customer Services Department

Customer Service Representative Attn: _____________________________

Phone: (918) 588-7745 Print Name

Fax: (918) 588-7750

Phone: ____________________________

Fax: ____________________________

IN WITNESS WHEREOF, Parties have executed this Agreement to be effective the

___________ day of ____________________, 20___.

Accepted and agreed to this ________ day of ______________, 20___.

VIKING GAS TRANSMISSION COMPANY

By: ________________________________________

Title: ________________________________________

Accepted and agreed to this ________ day of ______________, 20___.

CUSTOMER

By: _______________________________ By: __________________________________

_______________________________ __________________________________

Print Name Print Name

Title: _______________________________ Title: __________________________________