Midwestern Gas Transmission Company

Third Revised Volume No. 1

Effective Date: 07/09/2004, Docket: RP04-325-000, Status: Effective

First Revised Sheet No. 504 First Revised Sheet No. 504 : Effective

Superseding: Original Sheet No. 504

MIDWESTERN GAS TRANSMISSION COMPANY

ELECTRONIC DATA INTERCHANGE

TRADING PARTNER AGREEMENT

Section 4. Miscellaneous (Continued)

4.9 Assignment. This Agreement may not be assigned or transferred by either party

without the prior written approval of the other party, which approval shall not be

unreasonably withheld; provided, any assignment or transfer, whether by merger or

otherwise, to a party's affiliate or successor in interest shall be permitted without prior

consent if such party assumes this Agreement.

4.10 Waivers. No forbearance by any party to require performance of any provisions of

this Agreement shall constitute or be deemed a waiver of such provision or the right

thereafter to enforce it.

4.11 Counterparts. This Agreement may be executed in any number of original counterparts

all of which shall constitute one and the same instrument.

4.12 Reference Glossary. This section lists each defined term in this Agreement and cross

references that term to its definition in the Agreement.

DEFINED TERM WHERE DEFINED

Agreement Header

Data Communications Section 1.1

Digital Signature Section 1.5

Documents Section 1.1

Electronic Data Interchange, EDI Recital

Functional Acknowledgment Section 2.3.1

parties Header

Provider Section 1.2.1

Receipt Computer Section 2.1.2

Response Document Section 2.3.4

Signed Documents Section 3.5.2

time-c Section 2.1.1

Uniform Resource Locator, URL Section 2.1.2

Each party has caused this Agreement to be properly executed on its behalf as of the date

first above written.

Company Name: ____________________________ Midwestern Gas Transmission Company

By: ______________________________________ By: ______________________________________

Name: ____________________________________ Name: ____________________________________

Title: ___________________________________ Title: ___________________________________