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

              FORM 10-Q/A

Quarterly Report Pursuant to Section 13 or 15(d)
of the Securities Exchange Act of 1934

For the quarterly period ended  August 31, 1997

Commission File number 0-l87l6
  
               MATRIX SERVICE COMPANY
(Exact name of registrant as specified in its charter)



       DELAWARE                            73-1352l74
(State of incorporation)    (I.R.S. Employer Identification No.)


l070l E. Ute St., Tulsa, Oklahoma 74ll6-l5l7
(Address of principal executive offices and zip code)


Registrant's telephone number, including area code:
(9l8) 838-8822

Indicate by check mark whether the registrant (l) has filed all
reports required to be filed by Section l3 or l5(d) of the
Securities Exchange Act of  1934 during the preceding l2 months
(or for such shorter period that the registrant was required to
file such reports), and (2) has been subject to such filing
requirements for the past 90 days.    

             Yes  [X]    No [ ]

As of October 14, 1997, there were 9,491,153 shares of the
Company's common stock, $.0l par value per share, issued and
9,407,139 shares outstanding.



                                                                  
            PART I.- FINANCIAL INFORMATION

ITEM 1.   Financial Statements

                          Matrix Service Company
              Condensed Consolidated Statements of Income         
            (in thousands, except share and per share data)

[CAPTION]

                                          Three Months Ended   
                                              August 31                     
                                             (unaudited)      
                                         -----------------          
                                          1997      1996                 
                                        -------   -------
                                               

Revenues                                $49,519      $39,630

Cost of revenues                         44,777       35,665   
                                        --------     -------- 

Gross profit                              4,742         3,965

Selling, general and
     administrative expenses              3,006         2,459  


Goodwill and noncompete
     amortization                           296           216   
                                        --------      --------
Operating income                          1,440         1,290

Other income (expense):
   Interest income                           43            29   
Interest expense                           (258)         (114)     
      Other                                   9           (49)                                           --------      ----
                                        --------      --------
Inome before income tax expense           1,234         1,156
                               

Provision for federal and state              
     income tax expense                     465           524   
                                       --------      --------
Net Income                              $   769       $   632       
                                       ========      ========         
                                          

Net income per common and
common equivalent shares:

 Primary                                $   0.08      $   0.07

 Fully diluted                              0.08          0.07 

Weighted average common and
common equivalent shares outstanding:
       
Primary                                 9,965,765     9,523,982

Fully diluted                           9,965,765     9,523,982


See Notes to Condensed Consolidated Financial Statements
Matrix Service Company Condensed Consolidated Balance Sheets (in thousands)
August 31, May 31, ---------- --------- 1997 1997 ---------- --------- (unaudited) ASSETS: Current assets: Cash and cash equivalents $ 1,184 $ 1,877 Accounts receivable 38,211 37,745 Costs and estimated earnings in excess of billings on uncompleted contracts 14,224 11,349 Inventories 5,720 4,989 Prepaid expenses 463 456 Deferred taxes 1,075 1,021 Income tax receivable 1,033 317 --------- --------- Total current assets $ 61,910 $ 57,754 Investment in undistributed equity of a foreign joint venture 174 174 Property, plant and equipment at cost: Land and buildings 19,099 15,097 Construction equipment 24,308 24,444 Transportation equipment 5,761 5,504 Furniture and fixtures 3,298 3,164 Construction in progress 2,950 2,614 --------- --------- Less accumulated depreciation 24,398 20,861 --------- --------- Net property, plant and equipment 31,018 29,962 Goodwill, net of accumulated 30,925 28,721 amortization Other assets 811 261 --------- -------- Total assets $124,838 $116,872 See Notes to Condensed Consolidated Financial Statements
Matrix Service Company Condensed Consolidated Balance Sheets (in thousands)
August 31, May 31, ----------- --------- 1997 1997 ----------- --------- (unaudited) LIABILITIES AND STOCKHOLDERS' EQUITY: Current liabilities: Accounts payable $ 12,620 $ 12,307 Billings on uncompleted contracts in excess of costs and estimated earnings 6,943 6,325 Accrued expenses 7,057 6,583 Earnout payable 0 2,400 Income taxes payable 774 431 Deferred income taxes 177 0 Current portion of long-term debt 2,093 1,495 --------- --------- Total current liabilities 29,664 29,541 Long-term debt: Bank credit agreement 7,750 5,000 Equipment note payable 20 0 Acquisition notes payable 131 407 Term note payable 5,441 955 --------- --------- Total long-term debt 13,342 6,362 Deferred income taxes 4,757 4,757 Stockholders' equity: Common stock 95 95 Additional paid-in capital 50,903 50,903 Retained earnings 26,913 26,269 Cumulative translation adjustment (166) (145) --------- --------- 77,745 77,122 Less: Treasury stock, at cost 670 910 --------- --------- Total stockholders' equity 77,075 76,212 --------- --------- Total liabilities and stockholders' equity $124,838 $116,872 ========= ========= See Notes to Condensed Consolidated Financial Statements
Matrix Service Company Condensed Consolidated Cash Flow Statements (in thousands)
Three Months Ended August 31 (unaudited) ------------------ 1997 1996 ------- ------- Cash flow from operating activities: Net income $ 769 $ 632 Adjustments to reconcile net income to net cash provided by operating activities: Depreciation and amortization 1,546 1,392 Changes in current assets and liabilities increasing (decreasing) cash: Accounts receivable 4,129 3,120 Costs and estimated earnings in excess of billings on uncompleted contract (1,741) 417 Inventories 494 (634) Prepaid expenses (16) (99) Accounts payable (2,900) (1,881) Billings on uncompleted contracts in excess of costs and estimated earnings 151 755 Taxes and other accruals (2,141) (1,432) Other (3) (2) -------- -------- Net cash provided by by operating activities 288 2,268 Cash flow from investing activities: Capital expenditures (932) (1,459) Proceeds from sale of equipment 36 21 Acquisition of subsidiary, net of cash acquired (4,129) 47 -------- -------- Net cash used in investing activities (5,025) (1,391) Matrix Service Company Condensed Consolidated Cash Flow Statements (in thousands) Three Months Ended August (unaudited) ------------------ 1997 1996 ------- ------ Cash flows from financing activities: Issuance of acquisition notes 197 - Repayment of acquisition payables (132) (133) Issuance of equipment notes 39 - Repayment of equipment notes (3) (10) Issuance of long-term debt 9,750 1,000 Repayment of long-term debt (5,910) (2,272) Issuance of stock 116 14 ------- ------- Net cash used in financing activities 4,057 (1,401) Cumulative translation adjustment (13) 1 ------- ------- Decrease in cash and cash equivalents (693) (523) Cash and cash equivalents at beginning of period 1,877 1,899 ------- ------- Cash and cash equivalents at end of period $1,184 $1,376 ======= ======= See Notes to Condensed Consolidated Financial Statements
MATRIX SERVICE COMPANY NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS (unaudited) NOTE A - BASIS OF PRESENTATION The condensed consolidated financial statements include the accounts of the Company and its subsidiaries, all of which are wholly-owned. All significant inter-company balances and transactions have been eliminated in consolidation. The accompanying unaudited condensed consolidated financial statements have been prepared in accordance with Rule 10-0l of Regulation S-X for interim financial statements required to be filed with the Securities and Exchange Commission and do not include all information and footnotes required by generally accepted accounting principles for complete financial statements. However, the information furnished reflects all adjustments, consisting only of normal recurring adjustments which are, in the opinion of management, necessary for a fair statement of the results for the interim periods. The accompanying financial statements should be read in conjunction with the audited financial statements for the year ended May 3l, 1997, included in the Company's Annual Report on Form 10-K for the year then ended. The Company's business is seasonal; therefore, results for any interim period may not necessarily be indicative of future operating results. NOTE B - BUSINESS ACQUISITIONS On June 17, 1997, the Company acquired all of the outstanding common stock of General Service Corporation and its affiliated companies, Maintenance Services, Inc., Allentech, Inc., and Environmental Protection Services (collectively "GSC") for up to $7.8 million, subject to certain adjustments. The purchase price consisted of $4.75 million in cash and a $250 thousand, prime rate (currently 8.25%) promissory note payable in 12 equal quarterly installments. In addition, the stockholders of GSC are entitled to receive in the future up to an additional $2.75 million in cash if GSC satisfies certain earnings requirements. The transaction was accounted for as a purchase and created approximately $3.0 million of goodwill and non-competition covenants. ITEM 2. Management's Discussion and Analysis of Financial Condition and Results of Operations. Results of Operations Three Months Ended August 31, 1997 Compared to Three Months Ended August 31, 1996 General Service Corporation ("GSC") was acquired by Matrix Service Company (the "Company") on June 17, 1997. Accordingly, the results of operations of GSC, for two and one-half months are included for the current period, but none of GSC's operations are included in the prior year period. Revenues for the quarter ending August 31, 1997 were $49.5 million as compared to revenues of $39.6 million for the quarter ended August 31, 1996, representing an increase of approximately $9.9 million or 25%. The increase is due primarily to the inclusion in first quarter data of revenues of $5.3 million from the operations of GSC (referred to above) and increased revenues from refinery capital projects as compared with the same period in 1996. Gross profit for the quarterly period ending August 31, 1997 was $4.7 million, an increase of $777 thousand over the period ended August 31, 1996. Gross profit as a percentage of revenues decreased to 9.6% for the 1997 period compared to 10.0% for the 1996 period. The decrease results mainly from revenue being generated from capital work rather than repair and maintenance which generally produces higher profit margins. Selling, general and administrative expenses increased to $3.0 million for the quarterly period ending August 31, 1997 from expenses of $2.5 million for the quarterly period ended August 31, 1996, an increase of $547 thousand or approximately 22% and representing as a percentage of revenues, a decrease to 6.1% for the 1997 period as compared to 6.2% for the 1996 period. The principal amount of increase is due to the inclusion of expenses of GSC. Operating income increased to $1.4 million for the quarterly period ending August 31, 1997 from income of $1.3 million for the quarterly period ended August 31, 1996, an increase of $150 thousand. The increase was due to higher revenues combined with stable cost of revenues and selling, general and administrative expense offset by increased amortization of goodwill. The increased goodwill is attributed to the GSC acquisition. Interest expense increased to $258 thousand for the quarterly period ending August 31, 1997 from $114 thousand of interest expense for the quarterly period ended August 31, 1996. The increase resulted primarily from increased borrowing under the Company's revolving credit facility and term loans established on August 24, 1994 as amended. During the period there was an average of $6.3 million outstanding under the revolver loan. The term loan increase was due primarily to the GSC acquisition. Net income increased to $769 thousand for the quarterly period ending August 31, 1997 from net income of $632 thousand for the quarterly period ended August 31, 1996. The increase was due to increased revenues and decreased provision for income tax for the 1997 period as compared to the 1996 period. The lower income tax provision for the 1997 period resulted from a net operating loss carry forward acquired with GSC. Liquidity and Capital Resources The Company has financed its operations recently with cash generated by operations and advances under the Company's credit facility. The Company has a credit facility with a commercial bank under which the Company may borrow a total of $25.0 million. The Company may borrow up to $15.0 million under a revolving credit agreement based on the level of the Company's eligible receivables. The agreement provides for interest at the Prime Rate minus three quarters of one percent (3/4 of 1%), or a LIBOR based option, and matures on October 31, 1999. At August 31, 1997, the interest rate was 7.75% and the outstanding advances under the revolver totaled $7.75 million. The credit facility also provides for two term loans up to $5.0 million each. On October 5, 1994, and June 19, 1997 term loans of $4.9 million and $5.0 million, respectively, were made to the Company. The 1994 term loan is due on August 31, 1999 and is to be repaid in 54 equal payments beginning in March 1995 at an interest rate based upon the Prime Rate or a LIBOR option. The 1997 term loan is due January 23, 2002 and is to repaid in 54 equal payments beginning January 7, 1998 at an interest rate based upon the prime rate or a LIBOR option. At August 31, 1997, the interest rate on the term loans was 8.25%, and the outstanding balance was $2.2 million and $5.0 million, respectively. The rates reflected above are based on an agreement made after August 31, 1997. Operations of the Company provided $288 thousand of cash for the three months ended August 31, 1997 as compared with providing cash from operations of $2.3 million for the three months ended August 31, 1996, representing a decrease of approximately $2.0 million. The decrease was primarily the result of a net decrease of $2.8 million in billings on uncompleted contracts in excess of costs and estimated earnings in excess of billings. Capital expenditures during the three month period ended August 31, 1997 totaled approximately $932 thousand. Of this amount approximately $413 thousand was used to purchase welding and construction equipment for field operations. The Company has invested approximately $245 thousand for office expansion for support of field operations. In addition, the Company has currently budgeted approximately $2.6 million for additional capital expenditures primarily to be used to purchase construction equipment during the remainder of fiscal year 1998. The Company expects to be able to finance any such expenditures with available working capital. The Company believes that its existing funds, amounts available for borrowing under its credit facility, and cash generated by operations will be sufficient to meet the Company's working capital needs at least through fiscal 1998 and possibly thereafter unless significant expansions of operations not now planned are undertaken, in which case the Company would arrange additional financing as a part of any such expansion. PART II OTHER INFORMATION ITEM 6. Exhibits and Reports on Form 8-K: A. Exhibit 10.1 - Second Amendment to Credit Agreement B. Exhibit 11 - Computation of earnings per share. C. Reports on Form 8-K: None Signature Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned thereunto duly authorized. MATRIX SERVICE COMPANY Date: October 15, 1997 By: /s/C. William Lee -------------------- C. William Lee Vice President-Finance Chief Financial Officer Signing on behalf of the registrants the registrant's chief financial officer.

THIS SECOND AMENDMENT TO CREDIT AGREEMENT ("Amendment") is made
and  entered into this 15th day of September, 1997, by and among
MATRIX SERVICE  COMPANY, a Delaware corporation (hereinafter
referred to as "Matrix"), MATRIX  SERVICE, INC., an Oklahoma
corporation (hereinafter to as "MSI"), MIDWEST  INDUSTRIAL
CONTRACTORS, INC., a Delaware corporation (hereinafter referred
to  as "MIC"), MATRIX SERVICE MID-CONTINENT, INC., an Oklahoma
corporation  (hereinafter referred to as "MSM"), PETROTANK
EQUIPMENT, INC., an Oklahoma  corporation (hereinafter referred
to as "PEI"), TANK SUPPLY INC., an Oklahoma  corporation
(hereinafter referred to as "TSI"), SAN LUIS TANK PIPING 
CONSTRUCTION CO., INC., a Delaware corporation (hereinafter
referred to as  "SLT"), COLT CONSTRUCTION CO., INC., a Delaware
corporation (hereinafter  referred to as "CCC"), MIDWEST
INTERNATIONAL, INC., a Delaware corporation  (hereinafter
referred to as "MII"),  GEORGIA STEEL ACQUISITION CORPORATION, an 
Oklahoma corporation (hereinafter referred to as "GSAC"), GEORGIA
STEEL  FABRICATORS, INC., a Georgia corporation (hereinafter
referred to as "GSF"),  BROWN STEEL CONTRACTORS, INC., a Georgia
corporation (hereinafter referred to  as "BSC"), WEST COAST
INDUSTRIAL COATINGS, INC., a California corporation  (hereinafter
referred to as "WCI"), MIDWEST SERVICE COMPANY, a Delaware 
corporation (hereinafter referred to as "MSC"), HEATH
ENGINEERING, LTD., an  Ontario corporation (hereinafter referred
to as "HEL"), HEATH (TANK  MAINTENANCE) ENGINEERING, LTD., a
United Kingdom corporation (hereinafter  referred to as "HTM"),
MAYFLOWER VAPOR SEAL CORPORATION, an Oklahoma  corporation
(hereinafter referred to as ("MVS"), GENERAL SERVICE CORPORATION, 
a Delaware corporation (hereinafter referred to as "GSC"),
MAINSERVE-ALLENTECH, INC., a Delaware corporation (hereinafter
referred to as "MA"),  MAINTENANCE SERVICES, INC., a Delaware
corporation (hereinafter referred to as  "MSERV"), and LIBERTY
BANK AND TRUST COMPANY OF TULSA, NATIONAL ASSOCIATION 
(hereinafter referred to as the "Bank").  Matrix, MSI, MIC, MSM,
PEI, TSI,  SLT, CCC, MII, GSAC, GSF, BSC, WCI, MSC, HEL, HTM,
MVS, GSC, MA and MSERV are  hereinafter collectively referred to
as the "Borrowers" and individually as a  "Borrower."

     RECITALS

A.   The Borrowers are parties to that certain Credit Agreement
dated  August 30, 1994, as amended by that certain First
Amendment to Credit  Agreement dated June 19, 1997 (the same as
further amended, supplemented or  otherwise modified from time to
time, being hereinafter referred to as the  "Credit Agreement"),
pursuant to which the Bank has established in favor of  the
Borrowers, on the terms and conditions set forth therein, (i) a
revolving  credit facility in the principal amount not to exceed
$15,000,000.00, (ii) a  term loan facility in the original
principal amount not to exceed  $5,000,000.00, and (iii) a term
acquisition facility in the original principal  amount not to
exceed $5,000,000.00


B.   The Borrowers have requested that the Bank: (i) reduce the
rates  of interest under the Revolving Note, the Term Note and
the Acquisition Note,  (ii) modify Rate Election, Continuation
and Conversion Options, (iii) allow  for optional prepayments
under any Tranche, and (iv) expand the time period  under which
the Borrowers must provide certain monthly certificates and 
reports to the Bank.

C.   The Bank has agreed to the foregoing, subject to the terms
and  conditions hereinafter set forth.

NOW THEREFORE, in consideration of the foregoing, and for other
good and  valuable consideration, the receipt and adequacy of
which are hereby  acknowledged, and subject to the terms and
conditions set forth herein, the  parties agree to amend the
Credit Agreement, effective as of the date hereof,  as follows:

1.   TERMS DEFINED IN THE CREDIT AGREEMENT.   Capitalized terms
used herein  and not otherwise defined have the respective
meanings assigned to them in the  Credit Agreement.

2.   MODIFICATIONS TO APPLICABLE INTEREST RATES.  The Bank hereby
agrees to  modify the applicable rates of interest chargeable
under the Revolving Note,  the Term Note and the Acquisition
Note.  In order to effectuate the foregoing,  the Credit
Agreement shall be modified in accordance with the following:

A.   Modifications to Subsections 2.7.1(a) and 2.7.1(b). 
Subsections  2.7.1(a) and 2.7.1(b) of the Credit Agreement,
governing interest rates under  the Revolving Note, are hereby
deleted and replaced in their entirety,  respectively, by the
following:

(a)  Advances included within the Prime Tranche shall bear 
interest at a fluctuating rate per annum equal to the Prime Rate 
minus three-quarters of one percent (3/4 of 1%), adjusted as of 
the date of each change therein.

(b)  Advances included within each LIBOR Tranche shall bear 
interest at a rate per annum equal to the sum of the LIBOR Rate 
applicable to such LIBOR Tranche plus one and one-quarter percent 
(1-1/4%).

B.   Modifications to Subsections 2.7.2(d)(i) and 2.7.2(d)(ii).  
Subsections 2.7.2(d)(i) and 2.7.2(d)(ii) of the Credit Agreement,
governing  interest rates under the variable rate option of the
Term Note, are hereby  deleted and replaced in their entirety,
respectively, by the following:

(i)  Advances included within the Prime Tranche shall bear 
interest at a fluctuating rate per annum equal to the Prime Rate 
minus one quarter of one percent (1/4 of 1%), adjusted as of the 
date of each change therein.

(ii) Advances included within a LIBOR Tranche shall bear 
interest at a rate per annum equal to the sum of the LIBOR Rate 
applicable to such LIBOR Tranche plus one and three quarters 
percent (1-3/4%).

C.   Modifications to Subsections 2.7.6(c)(i) and 
2.7.6(c)(ii).  Subsections 2.7.6(c)(i) and 2.7.6(c)(ii) of the 
Credit Agreement (as established in the First Amendment to Credit 
Agreement dated June 19, 1997), governing interest rates under
the  variable rate option of the Acquisition Note, are hereby
deleted  and replaced in their entirety, respectively, by the
following:

(i)  Amounts outstanding under the Acquisition Note 
included within the Prime Tranche shall bear interest at a 
fluctuating rate per annum equal to the Prime Rate minus one 
quarter of one percent (1/4 of 1%), adjusted as of the date of 
each change therein.

(ii) Amounts outstanding under the Acquisition Note 
included within the LIBOR Tranche shall bear interest at a rate 
per annum equal to the sum of the LIBOR Rate applicable to such 
LIBOR Tranche plus one and three quarters percent (1-3/4%).

3.   MODIFICATION OF RATE ELECTIONS.  The Bank hereby agrees to
modify the  requirements governing Rate Elections under each of
the Credit Facilities.  In  order to effectuate the foregoing,
the Credit Agreement shall be modified in  accordance with the
following:

A.   Modifications to Subsection 2.7.3(f).  Subsection 2.7.3(f)
of the  Credit Agreement is hereby deleted and replaced in its
entirety by the  following:

(f)  there shall be no limit to the maximum number of 
Tranches outstanding under any of the Credit Facilities at any 
time; and

B.   Modifications to Subsection 2.7.4.  Subsections 2.7.4 of the 
Credit Agreement is hereby deleted and replaced in its entirety
by the  following:

2.7.4      Continuation and Conversion Options.  Subject to the 
limitations set forth in Subsection 2.7.3 hereof, the Borrowers 
may from time to time: (i) elect to continue, on the last day of 
the Interest Period therefor, any LIBOR Tranche (or any portion 
thereof) to a subsequent Interest Period, (ii) elect to convert, 
on the last day of the Interest Period therefor, any LIBOR
Tranche  in the Prime Tranche; or (iii) elect to convert, on any
Business  Day, the Prime Tranche (or any portion thereof) into a
LIBOR  Tranche.  The Borrowers shall give the Bank irrevocable
notice of  each conversion or continuation either orally or in
writing (by  delivering to the Bank a properly completed and
executed Disbursement Request) no later than 5:00 p.m., Tulsa
time, at least one (1) Business Day prior to the conversion or
continuation  date; provided, however, that the Borrowers shall
confirm all oral  conversion or continuation notices under any of
the Credit Facilities by delivering to the Bank a properly
completed and executed Disbursement Request within three (3)
Business Days after  the date of the oral request.  Each
conversion or
continuation  notice shall specify (i) the proposed conversion or
continuation  date (which shall be a Business Day), (ii) the
aggregate amount of  the Advances to be converted or continued,
(iii) the nature of the  proposed conversion or continuation, and
(iv) in the case of  conversion to or continuation as a LIBOR
Tranche, the requested  Interest Period.  No LIBOR Tranche may be
converted or continued  (i) at any time other than on the last
day of the Interest Period  applicable thereto, or (ii) at any
time that a Default or Event of  Default has occurred and is
continuing.

4.   MODIFICATIONS PERMITTING OPTIONAL PREPAYMENTS.  The Bank
hereby agrees  to permit the Borrowers to make prepayments under
any of the three Notes  regardless of the applicable Tranche(s). 
In order to effectuate the  foregoing, Subsection 2.10 of the
Credit Agreement is hereby deleted and  replaced in its entirety
with the following:

2.10 Optional Prepayments.  The Borrowers may, at any time 
and from time to time, prepay the outstanding principal amount 
under any of the Notes, in whole or in part, without premium or 
penalty, provided, however, that any partial prepayment on any 
Note shall be accompanied by payment of all unpaid accrued 
interest.  Amounts prepaid on the Term Note or the Acquisition 
Note will be applied to the unpaid principal installments of such 
Note in the inverse order of maturity.

5.   EXPANSION OF TIME PERIOD FOR CERTIFICATES AND REPORTS.  The
Bank hereby  agrees to expand the time period after the end of
each calendar month in which  the Borrowers must furnish to the
Bank completed Borrowing Base and Compliance  Certificates and
Accounts Aging Reports. In order to effectuate the foregoing, 
the first sentence of Subsection 6.2 of the Credit Agreement
shall be modified  by replacing the time reference of "fifteen
(15) days" with the time reference  of "thirty (30) days."

6.   CONDITIONS.  The amendments to the Credit Agreement set
forth in this  Amendment shall be effective from and after the
date hereof, but subject to  the Borrowers' satisfaction of each
of the following conditions precedent:

6.1  Amendment.  The Borrowers shall have duly and validly
authorized,  executed and delivered to the Bank this Amendment.

6.2  Resolutions.  With respect to each of  the Borrowers, the
Bank  shall have received a true and correct copy of the
resolutions adopted by its  Board of Directors duly authorizing
the borrowings contemplated hereunder and  the execution,
delivery and performance of this Amendment.

6.3  Other Matters.  The Borrowers shall have provided the Bank
with  such reports, information, financial statements, and other
documents as the  Bank has reasonably requested to evidence the
Borrowers' compliance with the  terms and conditions of this
Amendment and the Credit Agreement.

6.4  Legal Matters.  All legal matters incident to this Amendment
and  the Credit Facilities shall be satisfactory to the Bank and
its counsel.

6.5  No Defaults.  There shall not have occurred and be
continuing any  Default or Event of Default.

7.   REPRESENTATIONS AND WARRANTIES.  All representations and
warranties of  the Borrowers contained in Section 5 of the Credit
Agreement are hereby remade  and restated as the date hereof and
shall survive the execution and delivery  of this Amendment.  The
Borrowers further represent and warrant to the Bank  that:

7.1  Authority.  The Borrowers have all corporate power and
authority  and have been duly authorized to execute, deliver and
perform its obligations  under this Amendment and the Credit
Agreement.

7.2  Binding Obligations; Enforceability.  This Amendment, the
Credit  Agreement (as amended by this Amendment), and each of the
Notes are valid and  legally binding obligations of the
Borrowers, enforceable in accordance with  their respective
terms, except as limited by applicable bankruptcy, insolvency  or
other laws affecting the enforcement of creditors' rights
generally.

7.3  No Conflicts.  The execution, delivery and performance of
this  Amendment and the Credit Agreement (as amended by this
Amendment) by the  Borrowers do not and will not (a) conflict
with, result in a breach of the  terms, conditions or provisions
of, constitute a default under, or result in  any violation of
the Borrowers' Certificates of Incorporation, as amended, or 
Bylaws, or any agreement, instrument, undertaking, judgment,
decree, order,  writ, injunction, statute, law, rule or
regulation to which either of the  Borrowers is subject or by
which the assets of either of the Borrowers are  bound or
affected, (b) result in the creation or imposition of any lien, 
charge or encumbrance on, or security interest in, any property
now or  hereafter owned by the Borrowers, pursuant to the
provisions of any mortgage,  indenture, security agreement,
contract, undertaking or other agreement to  which either of the
Borrowers is a party, other than the obligations of the 
Borrowers in favor of the Bank created by the Loan Documents, or
(c) require  any authorization, consent, license, approval or
authorization of, or other  action by, notice or declaration to,
registration with, any court or any  administrative or
governmental body (domestic or foreign), or, to the extent  any
such consent or other action may be required, it has been validly
procured  or duly taken.

8.   MISCELLANEOUS.

8.1  Effect of Amendment.  Except as expressly modified and
amended by  this Amendment, all other terms of the Credit
Agreement shall continue in full  force and effect in accordance
with their original stated terms and are hereby  reaffirmed in
every respect as of the date hereof.  To the extent that the 
terms of this Amendment are inconsistent with the terms of the
Credit  Agreement, this Amendment shall control and the Credit
Agreement shall be  amended, modified or supplemented so as to
give full effect to the  transactions contemplated by this
Amendment.

8.2  Descriptive Headings.  The descriptive headings of the
several  paragraphs of this Amendment are inserted for
convenience only and shall not  be used in the construction or
the content of this Amendment.

8.3  Reimbursement of Expenses.  The Borrowers agree to pay all 
reasonable out-of-pocket expenses, including, without limitation,
filing fees,  recording costs and reasonable attorney's fees and
expenses, incurred by the  Bank in connection with the
preparation of this Amendment.

8.4  Reaffirmation of Security Agreements.  By signing below, the 
Borrowers hereby ratify and reaffirm the Security Agreements and
agree that  the Security Agreements shall continue in full force
and effect in accordance  with their terms as security for
payment and performance of all Indebtedness  arising under or in
connection with the Credit Agreement (as amended hereby).   All
references to the term "Indebtedness" contained in the Credit
Agreement,  the Security Agreements and other Loan Documents
shall hereafter be deemed to  include all liabilities,
obligations and indebtedness of the Borrowers to the  Bank
arising out of or relating to this Amendment.

IN WITNESS WHEREOF, the Borrowers and the Bank have caused this 
Agreement to be duly executed in multiple counterparts, each of
which shall be  considered an original, effective the date and
year first above written.

MATRIX SERVICE COMPANY,
a Delaware corporation


By:  /s/C. William Lee
- -------------------------
Name:  C. William Lee
Title:  Secretary



MATRIX SERVICE, INC.,
an Oklahoma corporation


By:  /s/C. William Lee
- -------------------------
Name:  C. William Lee
Title:  Secretary


MIDWEST INDUSTRIAL CONTRACTORS, INC.,
a Delaware corporation


By:  /s/C. William Lee
- -------------------------
Name:  C. William Lee
Title:  Secretary


MATRIX SERVICE MID-CONTINENT, INC.,
an Oklahoma corporation

By:  /s/C. William Lee
- -------------------------
Name:  C. William Lee
Title:  Secretary


PETROTANK EQUIPMENT, INC.,
an Oklahoma corporation


By: /s/C. William Lee
- -------------------------
Name: C. William Lee
Title: Secretary


TANK SUPPLY, INC.,
an Oklahoma corporation


By: /s/C. William Lee
- -------------------------
Name: C. William Lee
Title: Secretary


SAN LUIS TANK PIPING CONSTRUCTION CO., INC.,
a Delaware corporation


By: /s/C. William Lee
- -------------------------
Name: C. William Lee
Title: Secretary


COLT CONSTRUCTION CO., INC.,
a Delaware corporation


By: /s/C. William Lee
- -------------------------
Name: C. William Lee
Title: Secretary


MIDWEST INTERNATIONAL, INC.,
a Delaware corporation


By: /s/C. William Lee
- -------------------------
Name: C. William Lee
Title: Secretary


GEORGIA STEEL ACQUISITION CORPORATION,
an Oklahoma corporation


By: /s/C. William Lee
- -------------------------
Name: C. William Lee
Title: Secretary

GEORGIA STEEL FABRICATORS, INC.,
a Georgia corporation


By: /s/C. William Lee
- -------------------------
Name: C. William Lee
Title: Secretary


BROWN STEEL CONTRACTORS, INC.,
a Georgia corporation


By: /s/C. William Lee
- -------------------------
Name: C. William Lee
Title: Secretary


WEST COAST INDUSTRIAL COATINGS, INC.,
a California corporation


By: /s/C. William Lee
- -------------------------
Name: C. William Lee
Title: Secretary

MIDWEST SERVICE COMPANY,
a Delaware corporation


By: /s/C. William Lee
- -------------------------
Name: C. William Lee
Title: Secretary


HEATH ENGINEERING, LTD.,
an Ontario corporation


By: /s/C. William Lee
- -------------------------
Name: C. William Lee
Title: Secretary


HEATH (TANK MAINTENANCE) ENGINEERING, LTD.,
an United Kingdom corporation


By: /s/C. William Lee
- -------------------------
Name: C. William Lee
Title: Secretary


MAYFLOWER VAPOR SEAL CORPORATION,
an Oklahoma corporation


By: /s/C. William Lee
- -------------------------
Name: C. William Lee
Title: Secretary


GENERAL SERVICE CORPORATION,
a Delaware corporation


By: /s/C. William Lee
- -------------------------
Name: C. William Lee
Title: Secretary

MAINSERVE-ALLENTECH, INC.,
a Delaware corporation


By: /s/C. William Lee
- -------------------------
Name: C. William Lee
Title: Secretary


MAINTENANCE SERVICES, INC.,
a Delaware corporation


By: /s/C. William Lee
- -------------------------
Name: C. William Lee
Title: Secretary


LIBERTY BANK AND TRUST COMPANY
OF TULSA, NATIONAL ASSOCIATION

By: /s/Mark A. Poole
- -------------------------
Name: Mark A. Poole
Title: Senior Vice President

 [ARTICLE]                   5
[MULTIPLIER]                1,000
                         
[PERIOD-TYPE]               3-MOS
[FISCAL-YEAR-END]           May-31-1998
[PERIOD-START]              Jun-01-1997
[PERIOD-END]                Aug-31-1997
[COMMON]                       9,966
[NET-INCOME]                     769
[EPS-PRIMARY]                    0.08
[COMMON]                       9,966
[NET-INCOME]                     769
[EPS-DILUTED]                   0.08
[FISCAL-YEAR-END]           May-31-1997
[PERIOD-START]              Jun-01-1996
[PERIOD-END]                Aug-31-1996
[COMMON]                          9,524
[NET-INCOME]                        632
[EPS-PRIMARY]                      0.07
[COMMON]                          9,524
                        632   
[EPS-DILUTED]                      0.07
WARNING: THE EDGAR SYSTEM ENCOUNTERED ERROR(S) WHILE PROCESSING THIS SCHEDULE.

 
 
5 1,000 3-MOS MAY-31-1998 AUG-31-1997 1,184 0 38,211 0 5,720 61,910 55,416 24,398 124,838 7,685 29,664 0 95 0 0 76,980 124,838 49,519 49,519 44,777 44,777 3,306 0 3258 1,234 465 0 0 0 0 769 0.08 0.08