X0202 4 2007-07-02 1 0000018072 CASCADE NATURAL GAS CORP CGC 0001239212 ROSOK LARRY C 222 FAIRVIEW AVE N SEATTLE WA 98109 0 1 0 0 VP Human Resources & Corp Sec Common Stock 2007-07-02 4 M 0 4000 20.84 A 11698.339 D Common Stock 2007-07-02 4 U 0 11698.339 26.5 D 0 D Employee Stock Option (Right to Buy) 20.84 2007-07-02 4 M 0 4000 0 D 2003-03-29 2012-03-29 Common Stock 4000 0 D Exercise of 4000 shares of Common Stock granted under the CNGC 1998 Stock Incentive Plan. Options were exercised as provided in the Agreement and Plan of Merger by and among the Company, Firemoon Acquisitions, Inc. and MDU Resources Group, Inc. (the "Merger Agreement"). Option holders received cash in an amount equal to the difference between the merger consideration and the exercise price, as provided in the Merger Agreement. Reporting person disposed of 11698.3390 shares of Common Stock pursuant to an Agreement and Plan of Merger by and among MDU Resources Group, Inc., Firemoon Acquisition, Inc., and Cascade Natural Gas Corporation, dated as of July 8, 2006. Larry Rosok 2007-07-06