Black Marlin Pipeline Company

First Revised Volume No. 1

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Effective Date: 06/01/1997, Docket: RP97-110-003, Status: Effective

Original Sheet No. 327 Original Sheet No. 327 : Superseded

Page 1 of 3

EXHIBIT

ELECTRONIC DATA INTERCHANGE TRADING PARTNER AGREEMENT DATED

___________________

TO BE EFFECTIVE ___________________

1. TRANSACTION SETS:

Check all applicable transaction sets. This section covers only the

Originating Document and its Functional Acknowledgement or identification

and timing of substitute Response Decoument.

TRANSACTION ORIGINATI RECEIVING

SET NUMBER NATURAL GAS DOCUMENT NAME NG PARTY PARTY

865 Allocation Statement

843 Capacity Release - Bid

Review

840 Capacity Release -

Electronic Withdrawal

Upload

843 Capacity Release - Firm

Transportation & Storage-

Withdrawal

840 Capacity Release - Firm

Transportation & Storage

843 Capacity Release - Firm

Transportation & Storage-

Award Notice

864 Capacity Release -

Notes/Special Instruction

840 Capacity Release -

Operational Available &

Unsubscribed Capacity

846 Capacity Release -

Response to Upload of

Request for Download

840 Capacity Release - System-

Wide Notices

846 Capacity Release - Upload

of Request for Down Load

840 Capacity Release - Upload

to Pipeline of Prearranged

Deal (UPPD)

843 Capacity Release - UPPD -

Bidder Confirmation

824 Capacity Release - UPPD -

Bidder Confirmation

Validation

843 Capacity Release - UPPD -

Validation