Williston Basin Interstate Pipeline Co.

Second Revised Volume No. 1

Effective Date: 07/04/2001, Docket: RP01-446-000, Status: Effective

Third Revised Sheet No. 757 Third Revised Sheet No. 757 : Effective

Superseding: Second Revised Sheet No. 757

ELECTRONIC DATA INTERCHANGE

TRADING PARTNER AGREEMENT (Continued)

Section 4. Miscellaneous

4.1 Term. This Agreement shall be effective as of the date first set forth

above and shall remain in effect until terminated by either party with not

less than 30 days prior written notice specifying the effective date of

termination; provided, however, that written notice for purposes of this

paragraph shall not include notice provided pursuant to an EDI transaction;

further provided, however, that any termination shall not affect the

respective obligations or rights of the parties arising under any Documents or

otherwise under this Agreement prior to the effective date of termination.

4.2 Severability. Any provision of this Agreement which is determined by

any court or regulatory body having jurisdiction over this Agreement to be

invalid or unenforceable will be ineffective to the extent of such

determination without invalidating the remaining provisions of this Agreement

or affecting the validity or enforceability of such remaining provisions.

4.3 Entire Agreement. This Agreement and the Exhibit(s) constitute the

complete agreement of the parties relating to the matters specified in this

Agreement and supersede all prior representations or agreements, whether oral

or written, with respect to such matters. No oral modification or waiver of

any of the provisions of this agreement shall be binding on either party. No

obligation to enter into any transaction is to be implied from the execution

or delivery of this Agreement.

4.4 No Third Party Beneficiaries. This Agreement is solely for the benefit

of, and shall be binding solely upon, the parties, their agents and their

respective successors and permitted assigns. This Agreement is not intended

to benefit and shall not be for the benefit of any party other than the

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