Guardian Pipeline, L.L.C.

Original Volume No. 1

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Effective Date: 04/01/2007, Docket: RP07-317-000, Status: Effective

Fifth Revised Sheet No. 396 Fifth Revised Sheet No. 396 : Effective

Superseding: Fourth Revised Sheet No. 396

ELECTRONIC COMMUNICATION AGREEMENT

(Continued)

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 United States mail postage

prepaid to the following addressees, respectively.

Guardian Pipeline, L.L.C. 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 ___________________________________

Phone: (918) 588-7745

Fax: (918) 588-7750 Attn: ____________________________

Print Name

Phone: ____________________________

Fax: ____________________________

IN WITNESS WHEREOF, Company and Customer have executed this Agreement to

be effective the _____ day of ____________________, 200___.

Accepted and agreed to this ________ day of ______________, 200___.

GUARDIAN PIPELINE, L.L.C.

By: ONEOK Partners GP, L.L.C., the Operator

By: ________________________________________

Title: __________________________________

Accepted and agreed to this ________ day of ______________, 200___.

CUSTOMER

By: ________________________ By: ________________________

________________________ ________________________

Print Name Print Name

Title: _____________________ Title: _____________________