Centra Pipelines Minnesota Inc.

Second Revised Volume No. 2

Effective Date: 10/16/1991, Docket: RP91-136-002, Status: Effective

Original Sheet No. 29 Original Sheet No. 29 : Effective

times the difference between the volume of natural gas actually

delivered by Centra to Shipper and the lesser of Contract Quantity

and any nomination made by Shipper to its gas supplier or

upstream transportation for the period subsequently affected by

FORCE MAJEURE.

SECTION 13 - NOTICES

____________________

13.1 Notices to Shipper and to Centra shall be addressed to the address

specified in the Executed Transportation Service Agreement.

Either party may change its address under this Section by written

notice to the other party.

13.2 Actual notice shall be deemed to have been given when received,

in writing, whether by mail or electronic media, except that

daily operating arrangements may be made by telephone. A notice

given by mail hereunder shall be deemed to have been effectively

received on the tenth day following the day on which it is so

addressed and placed, postpaid, in the Canadian or United States

mail.

SECTION 14 - SERVICE AGREEMENT

______________________________

14.1 Shipper shall enter into a Transportation Service Agreement with

Centra. No modification of the terms and provisions of any