FORM 4 Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934, Section 17(a) of the Public Utility Holding Company Act of 1935 or Section 30(h) of the Investment Company Act of 1940

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(Print or Type Responses)

1. Name and Address of Reporting Person * STOLTZ JON T   2. Issuer Name and Ticker or Trading Symbol CASCADE NATURAL GAS CORP [CGC] 5. Relationship of Reporting Person(s) to Issuer (Check all applicable) _____ Director _____ 10% Owner __X__ Officer (give title below) _____ Other (specify below) Sr. VP Regulatory & Gas Supply (Last) (First) (Middle) 222 FAIRVIEW AVE N 3. Date of Earliest Transaction (Month/Day/Year) 07/02/2007 (Street) SEATTLE, WA 98109 4. If Amendment, Date Original Filed(Month/Day/Year) 6. Individual or Joint/Group Filing(Check Applicable Line) _X_ Form filed by One Reporting Person ___ Form filed by More than One Reporting Person (City) (State) (Zip) Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned

1.Title of Security (Instr. 3) 2. Transaction Date (Month/Day/Year) 2A. Deemed Execution Date, if any (Month/Day/Year) 3. Transaction Code (Instr. 8) 4. Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5) 5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4) 6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4) 7. Nature of Indirect Beneficial Ownership (Instr. 4) Code V Amount (A) or (D) Price Common Stock (1) 07/02/2007   M   6,000 A $ 20.84 15,737.747 D   Common Stock (2) 07/02/2007   U   15,737.747 D $ 26.5 0 D

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Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned
(e.g., puts, calls, warrants, options, convertible securities)

1. Title of Derivative Security (Instr. 3)

2. Conversion or Exercise Price of Derivative Security

3. Transaction Date (Month/Day/Year)

3A. Deemed Execution Date, if any (Month/Day/Year)

4. Transaction Code (Instr. 8)

5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4, and 5)

6. Date Exercisable and Expiration Date (Month/Day/Year)

7. Title and Amount of Underlying Securities (Instr. 3 and 4)

8. Price of Derivative Security (Instr. 5)

9. Number of Derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4)

10. Ownership Form of Derivative Security: Direct (D) or Indirect (I) (Instr. 4)

11. Nature of Indirect Beneficial Ownership (Instr. 4)

Code

V

(A)

(D)

Date Exercisable

Expiration Date

Title

Amount or Number of Shares

Employee Stock Option (Right to Buy) (3)

$ 20.84

07/02/2007

M

6,000

03/29/2003

03/29/2012

Common Stock

6,000

$ 0

0

D

Reporting Owners

Reporting Owner Name / Address	Relationships
	Director	10% Owner	Officer	Other
STOLTZ JON T 222 FAIRVIEW AVE N SEATTLE, WA 98109			Sr. VP Regulatory & Gas Supply

Signatures

James Haug by Power of Attorney		07/06/2007
**Signature of Reporting Person		Date

Explanation of Responses:

*	If the form is filed by more than one reporting person, see Instruction 4(b)(v).
**	Intentional misstatements or omissions of facts constitute Federal Criminal Violations. See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
(1)	Options were exercised as provided in the Agreement and Plan of Merger by and among the Company, Firemoon Acquisition, 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.
(2)	Reporting person disposed of 15737.7470 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.
(3)	Cash exercise of 6000 stock options granted under the CNGC 1998 Stock Incentive Plan.

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