Mobile Bay Pipeline Company

Second Revised Volume No. 1

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Effective Date: 06/01/1997, Docket: RP97-155-003, Status: Effective

First Revised Sheet No. 360 First Revised Sheet No. 360 : Effective

Superseding: Superseding Original Sheet No. 360

ELECTRONIC DATA INTERCHANGE TRADING PARTNER AGREEMENT

This ELECTRONIC DATA INTERCHANGE TRADING PARTNER AGREEMENT (this

"Agreement") is made as of [____], 19[____], by and between [____], a [____],

and Koch Gateway Pipeline Company, a [____] (each a "party" and collectively,

the "parties") to facilitate administrative matters exchanged between the

parties ("Transactions") in furtherance of the parties' transportation

agreements, pooling agreements, balancing agreements, and storage agreements,

by providing the option for electronically transmitting and receiving data in

agreed formats according to the standards published by the Gas Industry

Standards Board as adopted by the Federal Energy Regulatory Commission.

Section 1. Prerequisites.

1.1. Documents and Standards. Each party may electronically transmit to or

receive from the other party any of the transaction sets which the parties by

written agreement agree to utilize to effectuate the communications delineated

in such transaction sets (each agreed upon transaction set, a "Document," and

collectively, the "Documents"). The parties may agree to utilize transaction

sets pursuant hereto from time to time by executing detailed specification

exhibits (each, an "EDI Exhibit") referencing this Agreement, setting forth

the applicable electronic delivery mechanism, including back-up and alternate

electronic delivery mechanisms, if any, and identifying the transaction sets

and all applicable "Receipt Computers," "Digital Codes," "Functional

Acknowledgments," "Response Documents," "Providers," and "Functional

Acknowledgment Deadlines" (all as below defined). Any transmission of data

which is not a Document shall have no force or effect between the parties.

Each Document shall be transmitted by one party ("Sender") to the other party

("Receiver") in accordance with the standards and published industry

guidelines (collectively, the "Standards") identified in the Appendix hereto

(the "Appendix"). In the event of a conflict between the body of this

Agreement and the Appendix, the Appendix will govern. In the event of a

conflict between the body of this Agreement or the Appendix, and an EDI

Exhibit, the EDI Exhibit will govern.

1.2. Electronic Communication Providers. Documents will be transmitted

electronically to each party as specified in the applicable EDI Exhibit

either directly, or through any third party electronic communication

provider ("Provider") with which either party may contract, such as a value

added network provider or an Internet service provider. Either party may

modify its election to use, not use or change a Provider upon 30 days prior

written notice to the other party. Each party shall be responsible for the

costs of any Provider with which it contracts. Sender shall pay all costs of

its Provider associated with the transmission of a Document to the "Receipt

Computer" designated in the EDI Exhibit for Receiver and Receiver shall pay

all costs of its Provider associated with the retrieval and receipt of a

Document. Where the parties employ the services of a Provider, the Receipt

Computer shall be identified either as Receiver's electronic mailbox or