UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

FORM 4
STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

[ ] Check this box if no longer subject to Section 16.
    Form 4 or Form 5 obligations may continue.
1. Name and Address of Reporting Person(s)
   Zink, John S.
   Zink Ranch
   P. O. Box 52508

   Tulsa, OK  74152
2. Issuer Name and Ticker or Trading Symbol
   Matrix Service Company (MTRX)
3. I.R.S. Identification Number of Reporting Person, if an entity (Voluntary)

4. Statement for Month/Year
   02/03
5. If Amendment, Date of Original (Month/Year)
   02/14/03
6. Relationship of Reporting Person(s) to Issuer (Check all applicable)
   [X] Director                   [ ] 10% Owner
   [ ] Officer (give title below) [ ] Other (specify below)

7. Individual or Joint/Group Filing (Check Applicable Line)
   [X] Form filed by One Reporting Person
   [ ] Form filed by More than One Reporting Person

Table I Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned - ------------------------------------------------------------------------------------------------------------------------------------ 1)Title of Security 2)Trans- 3.Trans- 4.Securities Acquired(A) 5)Amount of 6) 7)Nature of action action or Disposed of (D) Securities Indirect Date Code A Beneficially D Beneficial (Month/ or Owned at or Ownership Day/Year) Code V Amount D Price End of Month I - ------------------------------------------------------------------------------------------------------------------------------------ Common Stock (1) 02/13/03 S 4,500 D $9.378 D Direct Common Stock (1) 02/14/03 S 14,500 D $9.220 11,000 D Direct Table II (PART 1) Derivative Securities Acquired, Disposed of, or Beneficially Owned (Columns 1 through 6) - ------------------------------------------------------------------------------------------------------------------------------------ 1)Title of Derivative 2)Conversion 3)Trans- 4)Trans- 5)Number of Derivative 6)Date Exercisable and Security or Exercise action action Securities Acquired (A) Expiration Date Price of Date Code or Disposed of (D) Derivative Security Code V A D Exercisable Expiration - ------------------------------------------------------------------------------------------------------------------------------------ Non-Qualified Stock Option $4.250 10/25/05 (right to buy) Non-Qualified Stock Option $4.250 10/18/10 (right to buy) Non-Qualified Stock Option $4.375 10/28/08 (right to buy) Non-Qualified Stock Option $5.625 06/01/03 (right to buy) Non-Qualified Stock Option $6.000 10/29/06 (right to buy) Non-Qualified Stock Option $6.050 10/23/11 (right to buy) Non-Qualified Stock Option $7.400 10/22/12 (right to buy) Non-Qualified Stock Option $7.750 10/31/07 (right to buy) Non-Qualified Stock Option $4.125 10/27/99 (right to buy) Table II (PART 2) Derivative Securities Acquired, Disposed of, or Beneficially Owned (Columns 1,3 and 7 through 11) - ------------------------------------------------------------------------------------------------------------------------------------ 1)Title of Derivative 3)Trans- 7)Title and Amount 8)Price 9)Number of 10) 11)Nature of Security action of Underlying of Deri- Derivative Indirect Date Securities vative Securities D Beneficial Amount or Security Beneficially or Ownership Number of Owned at I - Title Shares End of Month - ------------------------------------------------------------------------------------------------------------------------------------ Non-Qualified Stock Option Common Stock 10,000 10,000 D Direct (right to buy) Non-Qualified Stock Option Common Stock 5,000 5,000 D Direct (right to buy) Non-Qualified Stock Option Common Stock 5,000 5,000 D Direct (right to buy) Non-Qualified Stock Option Common Stock 10,000 10,000 D Direct (right to buy) Non-Qualified Stock Option Common Stock 5,000 5,000 D Direct (right to buy) Non-Qualified Stock Option Common Stock 5,000 5,000 D Direct (right to buy) Non-Qualified Stock Option Common Stock 5,000 5,000 D Direct (right to buy) Non-Qualified Stock Option Common Stock 5,000 5,000 D Direct (right to buy) Non-Qualified Stock Option Common Stock 5,000 5,000 D Direct (right to buy) Explanation of Responses: (1) Matrix Service Company Common Stock
SIGNATURE OF REPORTING PERSON /S/ Zink, John S. DATE 02/17/03