SECURITIES AND EXCHANGE COMMISSION
                            Washington, D.C.  20549

                                  SCHEDULE 13G
                                 (Rule 13d-102)
            Information statement pursuant to Rules 13d-1 and 13d-2

                    Under the Securities Exchange Act of 1934
                                 (Amendment No.16)

                             Matrix Service Company
                                (Name of Issuer)

                                  Common Stock
                         (Title of Class of Securities)

                                    576853105
                                 (CUSIP Number)

Date of  Event Which Requires Filing of this Statement: December 31, 2022

*The remainder of this cover page shall be filled out for a reporting
person's initial filing on this form with respect to the subject class of
securities, and for any subsequent amendment containing information which
would alter the disclosures provided in a prior cover page.

The information required in the remainder of this cover page shall not be
deemed to be "filed" for the purpose of Section 18 of the Securities Exchange
Act of 1934 ("Act") or otherwise subject to the liabilities of that section
of the Act but shall be subject to all other provisions of the Act (however,
see the Notes).

CUSIP No. 576853105   13G

  1   NAME OF REPORTING PERSON S.S. OR I.R.S. IDENTIFICATION NO. OF ABOVE PERSON

      Royce & Associates, LP    52-2343049

  2   CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP

      (a)  [ ]
      (b)  [ ]

  3   SEC USE ONLY

  4   CITIZENSHIP OR PLACE OF ORGANIZATION

       New York

  NUMBER OF SHARES BENEFICIALLY OWNED BY EACH REPORTING PERSON WITH:

      5  SOLE VOTING POWER

              1,367,058

      6  SHARED VOTING POWER

      7  SOLE DISPOSITIVE POWER

              1,367,058

      8  SHARED DISPOSITIVE POWER

  9  AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON

              1,367,058

 10  CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES [ ]

 11  PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (9)

              5.06%

 12  TYPE OF REPORTING PERSON

              IA

CUSIP No. 576853105   13G

Item 1(a)    Name of Issuer:

             Matrix Service Company

Item 1(b)    Address of Issuer's Principal Executive Offices:

             Chief Financial Officer
             5100 Eadt Skelly Drive
             Tulsa, OK   74135

Item 2(a)    Name of Persons Filing:

             Royce & Associates, LP

Item 2(b)    Address of Principal Business Office, or, if None, Residence:

             745 Fifth Avenue, New York, NY  10151

Item 2(c)    Citizenship:

             New York Corporation

Item 2(d)    Title of Class of Securities:

             Common Stock

Item 2(e)    CUSIP Number:

             576853105

Item 3   If this statement is filed pursuant to rules 13d-1(b), or 13d-
         2(b), check whether the person filing is a:

     (a) [ ] Broker or Dealer registered under Section 15 of the Act

     (b) [ ] Bank as defined in Section 3(a)(6) of the Act

     (c) [ ] Insurance Company as defined in Section 3(a)(19) of the Act

     (d) [ ] Investment Company registered under Section 8 of
             the Investment Company Act

     (e) [X] Investment Adviser registered under Section 203 of
             the Investment Advisers Act of 1940

     (f) [ ] Employee Benefit Plan, Pension Fund which is
             subject to the provisions of the Employee
             Retirement Income Security Act of 1974 or Endowment Fund

     (g) [ ] Parent Holding Company, in accordance with Rule 13d-1 (b)(ii)(G)

     (h) [ ] Group

CUSIP No. 576853105   13G

Item 4  Ownership

 The securities reported herein are beneficially owned by one or more
 registered investment companies or other managed accounts that are
 investment management clients of Royce & Associates, LP ("RALP"), an
 indirect majority owned subsidiary of Franklin Resources, Inc.("FRI").
 When an investment management contract (including a sub advisory
 agreement) delegates to RALP investment discretion or voting power over
 the securities held in the investment advisory accounts that are
 subject to that agreement, FRI treats RALP as having sole investment
 discretion or voting authority, as the case may be, unless the
 agreement specifies otherwise. Accordingly, RALP reports on Schedule
 13G that it has sole investment discretion and voting authority over
 the securities covered by any such investment management agreement,
 unless otherwise noted in this Item 4. As a result, for purposes of
 Rule 13d 3 under the Act, RALP may be deemed to be the beneficial owner
 of the securities reported in this Schedule 13G.

 Beneficial ownership by investment management subsidiaries and other
 affiliates of FRI is being reported in conformity with the guidelines
 articulated by the SEC staff in Release No. 34 39538 (January 12, 1998)
 relating to organizations, such as FRI, where related entities exercise
 voting and investment powers over the securities being reported
 independently from each other. The voting and investment powers held by
 RALP are exercised independently from FRI (RALP's parent holding
 company) and from all other investment management subsidiaries of FRI
 (FRI, its affiliates and investment management subsidiaries other than
 RALP are, collectively, "FRI affiliates"). Furthermore, internal
 policies and procedures of RALP and FRI affiliates establish
 informational barriers that prevent the flow between RALP and the FRI
 affiliates of information that relates to the voting and investment
 powers over the securities owned by their respective investment
 management clients. Consequently, RALP and the FRI affiliates report
 the securities over which they hold investment and voting power
 separately from each other for purposes of Section 13 of the Act.

 Charles B. Johnson and Rupert H. Johnson, Jr. (the "Principal
 Shareholders") each own in excess of 10% of the outstanding common
 stock of FRI and are the principal stockholders of FRI. However,
 because RALP exercises voting and investment powers on behalf of its
 investment management clients independently of FRI affiliates,
 beneficial ownership of the securities reported by RALP is not
 attributed to the Principal Shareholders. RALP disclaims any pecuniary
 interest in any of the securities reported in this Schedule 13G.  In
 addition, the filing of this Schedule 13G on behalf of RALP should not
 be construed as an admission that it is, and it disclaims that it is,
 the beneficial owner, as defined in Rule 13d 3, of any of such
 securities.

 Furthermore, RALP believes that it is not a "group" with FRI
 affiliates, the Principal Shareholders, or their respective affiliates
 within the meaning of Rule 13d 5 under the Act and that none of them is
 otherwise required to attribute to any other the beneficial ownership
 of the securities held by such person or by any persons or entities for
 whom or for which RALP or the FRI affiliates provide investment
 management services.

     (a)        Amount Beneficially Owned:

                1,367,058

     (b)        Percent of Class:

                5.06%

     (c)        Number of shares as to which such person has:

         (i)    sole power to vote or to direct the vote

                1,367,058

         (ii)   shared power to vote or to direct the vote
                                         __________
        (iii)   sole power to dispose or to direct the disposition of

                1,367,058

         (iv)   shared power to dispose or to direct the disposition of
                                          __________

Item 5   Ownership of Five Percent or Less of a Class. [       ]

Item 6   Ownership of More than Five Percent on Behalf of Another Person.

             NONE

Item 7   Identification and Classification of the Subsidiary Which Acquired
         The Security Being Reported on by the Parent Holding Company.

             NOT APPLICABLE

Item 8   Identification and Classification of Members of the Group.

             NOT APPLICABLE

Item 9   Notice of Dissolution of Group.

             NOT APPLICABLE

CUSIP No. 576853105   13G

Item 10  Certification.

 By signing below I certify that, to the best of my knowledge and belief,
 the securities referred to above were acquired  and are held in the ordinary
 course of business and were not acquired and are not held for the purpose of
 or with the effect of changing or influencing the control of the issuer of
 the securities and were not acquired and are not held in connection with
 or as a participant in any transaction having that purpose or effect.

                                   Signature

 After reasonable inquiry and to the best of my knowledge and belief,
 I certify that the information set forth in this statement with respect
 to it is true, complete and correct.

Date:    January 24, 2023






By:     Daniel A. O'Byrne
        Vice President