December 31, 2001 Ensign Peak Advisors, Inc. 50 East North Temple Street, 15th Floor Salt Lake City, Utah 84150 Dear Sirs: This letter sets forth the agreement of Ensign Peak Advisors, Inc. (the "Purchaser") and MDU Resources Group, Inc. (the...Mdu Resources Group Inc • January 3rd, 2002 • Gas & other services combined • New York
December 31, 2001 Carlson Capital, L.P. 2100 McKinney Avenue, Suite 1600 Dallas, Texas 75210 Dear Sirs: This letter sets forth the agreement of Carlson Capital, L.P., acting on behalf of the funds listed in Schedule "A" attached hereto (the...Mdu Resources Group Inc • January 3rd, 2002 • Gas & other services combined • New York
