UTI ENERGY CORP
SC 13D/A, 1997-10-06
OIL & GAS FIELD SERVICES, NEC
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<PAGE>   1

                       SECURITIES AND EXCHANGE COMMISSION


                             WASHINGTON, D.C. 20549

                               AMENDMENT NO. 3 TO
                                  SCHEDULE 13D

                   Under the Securities Exchange Act of 1934


                                UTI ENERGY CORP.
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
                                (Name of Issuer)

                         COMMON STOCK, $.001 PAR VALUE
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
                         (Title of Class of Securities)

                                  903387 10 8
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
                                 (CUSIP Number)

                      C/O REMY CAPITAL PARTNERS III, L.P.
     1801 CENTURY PARK EAST, LOS ANGELES, CALIFORNIA 90067, (310) 843-0050
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
            (Name, Address and Telephone Number of Person Authorized
                     to Receive Notices and Communications)

                               SEPTEMBER 30, 1997
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
            (Date of Events which Require Filing of this Statement)


If the filing person has previously filed a statement on Schedule 13G to report
the acquisition which is the subject of this Schedule 13D, and is filing this
schedule because of Rule 13d-1(b)(3) or (4), check the following box [ ].

NOTE: Six copies of this statement, including all exhibits, should be filed
with the Commission.  See Rule 13d-1(a) for other parties to whom copies are to
be sent.

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).





                               Page 1 of 12 Pages
<PAGE>   2
CUSIP NO. 903387 10 8               13 D                      Page 2 of 11 Pages

- --------------------------------------------------------------------------------
                     NAME OF REPORTING PERSONS
                     S.S. OR I.R.S. IDENTIFICATION NOS. OF ABOVE PERSONS
          1
                     Remy Capital Partners III, L.P.
- --------------------------------------------------------------------------------
                     CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP*  (a)  [x]
          2
                                                                        (b)  [ ]
- --------------------------------------------------------------------------------
                     SEC USE ONLY
          3

- --------------------------------------------------------------------------------
                     SOURCE OF FUNDS

          4          00

- --------------------------------------------------------------------------------
                     CHECK IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED
                     PURSUANT TO
          5          N/A                                                     [ ]

- --------------------------------------------------------------------------------
                     CITIZENSHIP OR PLACE OF ORGANIZATION
          6
                     Delaware

- --------------------------------------------------------------------------------
                                     SOLE VOTING POWER
                               7
                                     5,383,650 shares
                             ---------------------------------------------------
         NUMBER OF                   SHARED VOTING POWER
           SHARES              8
        BENEFICIALLY                 -0-
           OWNED             ---------------------------------------------------
          BY EACH                    SOLE DISPOSITIVE POWER
         REPORTING   
           PERSON              9     5,383,650 shares
            WITH             ---------------------------------------------------
                                     SHARED DISPOSITIVE POWER

                               10    -0-
- --------------------------------------------------------------------------------
                     AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING
                     PERSON 
          11         5,383,650 shares

- --------------------------------------------------------------------------------
                     CHECK IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN
                     SHARES 
          12                                                                 [ ]
                     N/A
- --------------------------------------------------------------------------------
                     PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)

          13         41%

- --------------------------------------------------------------------------------
                     TYPE OF REPORTING PERSON

          14         PN

- --------------------------------------------------------------------------------




                               Page 2 of 12 Pages
<PAGE>   3
CUSIP NO. 903387 10 8               13 D                      Page 3 of 11 Pages

- --------------------------------------------------------------------------------
                     NAME OF REPORTING PERSONS
                     S.S. OR I.R.S. IDENTIFICATION NOS. OF ABOVE PERSONS
          1
                     Remy Investors and Consultants, Incorporated
- --------------------------------------------------------------------------------
                     CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP*  (a)  [x]
          2
                                                                        (b)  [ ]
- --------------------------------------------------------------------------------
                     SEC USE ONLY
          3

- --------------------------------------------------------------------------------
                     SOURCE OF FUNDS

          4          00

- --------------------------------------------------------------------------------
                     CHECK IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED
                     PURSUANT TO
          5          N/A                                                     [ ]

- --------------------------------------------------------------------------------
                     CITIZENSHIP OR PLACE OF ORGANIZATION
          6
                     California

- --------------------------------------------------------------------------------
                                     SOLE VOTING POWER
                               7
                                     5,548,650 shares
                             ---------------------------------------------------
         NUMBER OF                   SHARED VOTING POWER
           SHARES              8
        BENEFICIALLY                 -0-
           OWNED             ---------------------------------------------------
          BY EACH                    SOLE DISPOSITIVE POWER
         REPORTING   
           PERSON              9     5,548,650 shares
            WITH             ---------------------------------------------------
                                     SHARED DISPOSITIVE POWER

                               10    -0-
- --------------------------------------------------------------------------------
                     AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING
                     PERSON 
          11         5,548,650 shares

- --------------------------------------------------------------------------------
                     CHECK IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN
                     SHARES 
          12                                                                 [ ]
                     N/A
- --------------------------------------------------------------------------------
                     PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)

          13         41.8%

- --------------------------------------------------------------------------------
                     TYPE OF REPORTING PERSON

          14         CO

- --------------------------------------------------------------------------------


                               Page 3 of 12 Pages
<PAGE>   4
CUSIP NO. 903387 10 8               13 D                      Page 4 of 11 Pages

- --------------------------------------------------------------------------------
                     NAME OF REPORTING PERSONS
                     S.S. OR I.R.S. IDENTIFICATION NOS. OF ABOVE PERSONS
          1
                     Mark S. Siegel
- --------------------------------------------------------------------------------
                     CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP*  (a)  [x]
          2
                                                                        (b)  [ ]
- --------------------------------------------------------------------------------
                     SEC USE ONLY
          3

- --------------------------------------------------------------------------------
                     SOURCE OF FUNDS

          4          00

- --------------------------------------------------------------------------------
                     CHECK IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED
                     PURSUANT TO
          5          N/A                                                     [ ]

- --------------------------------------------------------------------------------
                     CITIZENSHIP OR PLACE OF ORGANIZATION
          6
                     United States of America

- --------------------------------------------------------------------------------
                                     SOLE VOTING POWER
                               7
                                     5,848,650 shares
                             ---------------------------------------------------
         NUMBER OF                   SHARED VOTING POWER
           SHARES              8
        BENEFICIALLY                 -0-
           OWNED             ---------------------------------------------------
          BY EACH                    SOLE DISPOSITIVE POWER
         REPORTING   
           PERSON              9     5,848,650 shares
            WITH             ---------------------------------------------------
                                     SHARED DISPOSITIVE POWER

                               10    -0-
- --------------------------------------------------------------------------------
                     AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING
                     PERSON 
          11         5,848,650 shares

- --------------------------------------------------------------------------------
                     CHECK IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN
                     SHARES 
          12                                                                 [ ]
                     N/A
- --------------------------------------------------------------------------------
                     PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)

          13         43.0%

- --------------------------------------------------------------------------------
                     TYPE OF REPORTING PERSON

          14         IN

- --------------------------------------------------------------------------------


                               Page 4 of 12 Pages
<PAGE>   5
                     SECURITIES AND EXCHANGE COMMISSION
                              WASHINGTON, D.C.
                                SCHEDULE 13D
                  UNDER THE SECURITIES EXCHANGE ACT OF 1934

                                      
         This Schedule 13D is filed on behalf of Remy Capital Partners III,
L.P., a Delaware limited partnership, Remy Investors and Consultants,
Incorporated, a California corporation and Mark S. Siegel, an individual.

ITEM 1.          SECURITY AND ISSUER

The equity securities to which this statement relates are Common Stock, par
value $0.001 per share.  The name of the subject company is UTI Energy Corp.
(the "Company").  The principal executive offices of the Company are located at
16800 Greenspoint Park, Suite 225N, Houston, Texas 77060.

ITEM 2.          IDENTITY AND BACKGROUND

         (a)     NAME OF PERSON FILING

                 This Statement is filed by (i) Remy Capital Partners III,
                 L.P., a Delaware limited partnership ("Remy Capital"), (ii)
                 Remy Investors and Consultants, Incorporated, a California
                 corporation ("Remy Investors"), and (iii) Mark S. Siegel, an
                 individual.  Remy Investors is the General Partner of Remy
                 Capital.  Mark S. Siegel is the President and sole shareholder
                 of Remy Investors.  Remy Capital, Remy Investors and Mark S.
                 Siegel are hereinafter collectively referred to as the
                 "Reporting Person." Information is also provided for Cathy R.
                 Siegel, an individual and Vice President of Remy Investors.

         (b)     ADDRESS OF PRINCIPAL OFFICE OR, IF NONE, RESIDENCE

                 Remy Capital:             1801 Century Park East, Suite 1111
                                           Los Angeles, California 90067

                 Remy Investors:           1801 Century Park East,  Suite 1111
                                           Los Angeles, California  90067

                 Mark S. Siegel:           1801 Century Park East, Suite 1111
                                           Los Angeles, California  90067

                 Cathy R. Siegel:          1801 Century Park East, Suite 1111
                                           Los Angeles, California  90067


          (c)    PRESENT PRINCIPAL OCCUPATION OR EMPLOYMENT, BUSINESS
                 
                 Remy Capital:             Private Investment Partnership
                 
                 Remy Investors:           Investment Advisor
                 
                 Mark S. Siegel:           Investment Advisor
                 
                 Cathy R. Siegel:          Officer of Remy





                               Page 5 of 12 Pages
<PAGE>   6
         (d)     CRIMINAL CONVICTION

         During the last five years, none of Remy Capital, Remy Investors, Mark
S. Siegel or Cathy R. Siegel has been convicted in a criminal proceeding
(excluding traffic violations or misdemeanors).

         (e)     CIVIL PROCEEDING REGARDING SECURITIES LAWS

         During the last five years, none of Remy Capital, Remy Investors, Mark
S. Siegel or Cathy R. Siegel was a party to a civil proceeding of a judicial or
administrative body of competent jurisdiction and as a result of such
proceeding was or is subject to a judgment, decree or final order enjoining
further violations of, or prohibiting activities subject to, federal or state
securities laws or finding any violation of such laws.

         (f)     CITIZENSHIP

         Mark S. Siegel and Cathy R. Siegel are citizens of the United States
of America.

ITEM 3.          SOURCE AND AMOUNT OF FUNDS OR OTHER CONSIDERATION

         In March 1995, Remy Capital purchased 1,736,550 shares of Common Stock
for $7,814,475 ($4.50 per share) using partnership capital contributions (the
"Initial Purchase").

         On March 6, 1996, Remy Capital purchased in the open market 2,500
shares of Common Stock for $15,563 and 500 shares for $3,237, using cash on
hand (the "Open Market Purchase").

         On December 19, 1995, the Board of Directors of the Company approved
the grant of an option to Remy Investors to purchase 120,000 shares of Common
Stock (the "Remy Option") and the submission of such option to the stockholders
of the Company for their approval.  The Remy Option, which would become
effective only upon approval by the Company's stockholders, was intended to
compensate Remy Investors for various advisory services provided to the Company
in connection with the Board of Directors' strategic decision to focus the
Company's operations on its current drilling and pressure pumping businesses.
These services included (i) assisting in the Company's sale of certain of its
assets (ii) assisting the Company in the acquisition of another company in
November 1995 (the "November Acquisition") and (iii) assisting the Company in
the arrangement of financing for the November Acquisition.  The Remy Option
also was intended to compensate Remy Investors for other services provided for
general corporate purposes throughout 1995.  The Remy Option was structured so
as to minimize the cost to the Company for the services provided to it by Remy
Investors and to protect the Company's working capital position by being
granted in lieu of cash compensation.  Also in August 1996 and following the
Board's decision to grant the Remy Option, Remy Investors agreed with Remy
Capital and Kenneth N. Berns, an employee of Remy Investors, that, subject to
the approval of the Remy Option by the stockholders of the Company, portions of
the Remy Option were assigned to Remy Capital and Mr. Berns such that Remy
Investors and Remy Capital would each own an option to purchase 55,000 shares
and Mr. Berns would own an option to acquire 10,000 shares.  The Remy Option
was approved by the stockholders of the Company on August 8, 1996.

         On February 13, 1997, the Board of Directors of the Company approved
the grant of an option to Mark S. Siegel to purchase 55,000 shares of Common
Stock at $24.38 per share  pursuant to the 1996 Key Employee Stock Option Plan
(the "1996 Plan").

         On July 27, 1997, the Board of Directors of the Company approved the
grant of an option to Mark S. Siegel to purchase 45,000 shares of Common Stock
at $60.00 per share  pursuant to the 1996 Plan.





                               Page 6 of 12 Pages
<PAGE>   7
         On July 27, 1997, the Board of Directors of the Company declared a
three-for-one stock dividend, which was effected on September 5, 1997, for
stockholders of record on August 25, 1997 (which adjusted the number of shares
underlying warrants and their respective exercise prices).

         On September 30, 1997, Remy Capital and Remy Investors entered into an
Underwriting Agreement dated September 30, 1997 (the "Underwriting Agreement")
by and between the Issuer, Prudential Securities Incorporated, Lehman Brothers
Inc., Rauscher Pierce Refsnes, Inc. and Simmons & Company International, as
Representatives of the several Underwriters listed on Schedule 2 thereto (the
"Underwriters") and the Selling Security holders listed on Schedules 1-A and
1-B thereto, including Remy Capital and Remy Investors.  Pursuant to the
Underwriting Agreement, Remy Capital has agreed to sell to the several
Underwriters and the Underwriters have agreed to purchase 1,607,888 shares of
Common Stock owned directly by Remy Capital at a price of $39.50 per share
(less an underwriting discount of $1.78 per share).  Remy Capital also has
agreed to sell to the Underwriters and the Underwriters have agreed to purchase
Remy Capital's share of the Remy Option (representing 165,000 shares following
the stock split) at a price of $35.824 per warrant share (the offering price
less underwriting discounts and applicable exercise price).  In addition, Remy
Capital and Remy Investors have granted the Underwriters a 30-day overallotment
option whereby Remy Capital has agreed to sell to the Underwriters an additional
192,675 shares directly owned by it at $39.50 per share (less an underwriting
discount of 1.78 per share) and Remy Investors has agreed to sell to the
Underwriters its share of the Remy Option at a price of $35.824 per warrant
share (the offering price less underwriting discounts and applicable exercise
price).

ITEM 4.          PURPOSE OF TRANSACTION

         The securities were acquired for investment purposes.  Depending upon
the Reporting Person's continuing evaluation of the Company's business and
prospects, alternative investment opportunities and any other factors Reporting
Person deems relevant, Reporting Person may, from time to time, purchase
additional shares on the open market or in privately negotiated transactions or
otherwise.  Reporting Person has no present intention of selling any shares,
but reserves the right to do so, in whole or in part, at any time, in open
market transactions, privately negotiated transactions or otherwise.

         (a)     THE ACQUISITION BY ANY PERSON OF ADDITIONAL SECURITIES OF THE
                 ISSUER;

                 Reporting Person has no present intention, plan, or proposal
                 with respect to this paragraph.

         (b)     AN EXTRAORDINARY CORPORATE TRANSACTION, SUCH AS A MERGER,
                 REORGANIZATION OR LIQUIDATION, INVOLVING THE ISSUER OR ANY OF
                 ITS SUBSIDIARIES;

                 Reporting Person has no present intention, plan, or proposal
                 with respect to this paragraph.

         (c)     A SALE OR TRANSFER OF A MATERIAL AMOUNT OF ASSETS OF THE
                 ISSUER OR ANY OF ITS SUBSIDIARIES;

                 Reporting Person has no present intention, plan, or proposal
                 with respect to this paragraph.

         (d)     ANY CHANGE IN THE PRESENT BOARD OF DIRECTORS OR MANAGEMENT OF
                 ISSUER, INCLUDING ANY PROPOSALS TO CHANGE THE NUMBER OF TERM
                 OF DIRECTORS OR TO FILL ANY EXISTING VACANCIES ON THE BOARD;





                               Page 7 of 12 Pages
<PAGE>   8
                 Mark S. Siegel, sole shareholder of Remy Investors, Inc. and
                 Randall L. Bishop, an employee of Remy Investors, became
                 members of Company's board of directors upon consummation of
                 the Initial Purchase.  Mr. Bishop later resigned from the
                 board of directors and Mr. Berns was elected to fill the
                 vacancy created thereby.  Other than the foregoing, Reporting
                 Person has no present intention, plan or proposal with respect
                 to this paragraph.

         (e)     ANY MATERIAL CHANGE IN THE PRESENT CAPITALIZATION OR DIVIDEND
                 POLICY OF THE ISSUER;

                 Reporting Person has no present intention, plan or proposal
                 with respect to this paragraph.

         (f)     ANY OTHER MATERIAL CHANGE IN THE ISSUER'S BUSINESS OR
                 CORPORATE STRUCTURE INCLUDING BUT NOT LIMITED TO, IF THE
                 ISSUER IS A REGISTERED CLOSED-END INVESTMENT COMPANY, ANY
                 PLANS OR PROPOSALS TO MAKE ANY CHANGES IN THE INVESTMENT
                 POLICY FOR WHICH A VOTE IS REQUIRED BY SECTION 13 OF THE
                 INVESTMENT COMPANY ACT OF 1940;

                 Reporting Person has no present intention, plan or proposal
                 with respect to this paragraph.

         (g)     CHANGES IN THE ISSUER'S CHARTER, BYLAWS OR INSTRUMENTS
                 CORRESPONDING THERETO OR OTHER ACTIONS WHICH MAY IMPEDE THE
                 ACQUISITION OF CONTROL OF THE ISSUER BY ANY PERSON;

                 Reporting Person has no present intention, plan or proposal
                 with respect to this paragraph.

         (h)     CAUSING A CLASS OF SECURITIES OF THE ISSUER TO BE DELISTED
                 FROM A NATIONAL SECURITIES EXCHANGE OR TO CEASE TO BE
                 AUTHORIZED TO BE QUOTED IN AN INTER-DEALER QUOTATION SYSTEM OF
                 A REGISTERED NATIONAL SECURITIES ASSOCIATION;

                 Reporting Person has no present intention, plan or proposal
                 with respect to this paragraph.

         (i)     A CLASS OF EQUITY SECURITIES OF THE ISSUER BECOMING ELIGIBLE
                 FOR TERMINATION OF REGISTRATION PURSUANT TO SECTION 12(g)(4)
                 OF THE ACT;

                 Reporting Person has no present intention, plan or proposal
                 with respect to this paragraph.

          (j)    ANY ACTION SIMILAR TO ANY OF THOSE ENUMERATED ABOVE.

                 Reporting Person has no present intention, plan or proposal
                 with respect to this paragraph.

ITEM 5.          INTEREST IN SECURITIES OF ISSUER

         (a)     AMOUNT OF SHARES OWNED

                 Remy Capital beneficially owns 5,383,650 shares of Common
                 Stock of Company (approximately 41.0% of the Company's
                 outstanding shares).  Remy Investors, which is the sole
                 General Partner of Remy Capital and controls all investment
                 activities of Remy Capital, would beneficially own all shares
                 beneficially owned





                               Page 8 of 12 Pages
<PAGE>   9
                 by Remy Capital and, accordingly, is the beneficial owner of
                 5,548,650 shares (approximately 41.8% of the Company's
                 outstanding shares), of which 165,000 shares may be acquired
                 within 60 days.  Mark S.  Siegel is the sole shareholder of
                 Remy Investors and would beneficially own all shares
                 beneficially owned by Remy Investors, and, accordingly, is the
                 beneficial owner of 5,848,650 shares (approximately 43% of
                 the Company's outstanding shares), of which 630,000 shares may
                 be acquired within 60 days.

         (b)     NUMBER OF SHARES AS TO WHICH SUCH PERSON HAS:

                 (i)      SOLE POWER TO VOTE OR DIRECT THE VOTE

                          Remy Capital:            5,383,650

                          Remy Investors:          5,548,650

                          Mark S. Siegel:          5,848,650

                          Cathy R. Siegel:         0

                (ii)      SHARED POWER TO VOTE OR DIRECT THE VOTE

                          Remy Capital:            0
                                                
                          Remy Investors:          0
                          
                          Mark S. Siegel:          0

                          Cathy R. Siegel:         0

                 (iii)    SOLE POWER TO DISPOSE OR TO DIRECT THE DISPOSITION
                          OF:

                          Remy Capital:            5,383,650

                          Remy Investors:          5,548,650

                          Mark S. Siegel:          5,848,650

                          Cathy R. Siegel:         0

                 (iv)     SHARED POWER TO DISPOSE OF OR TO DIRECT DISPOSITION
                          OF:

                          Remy Capital:            0

                          Remy Investors:          0

                          Mark S. Siegel:          0

                          Cathy R. Siegel:         0

         (c)     TRANSACTIONS IN THE REPORTED CLASS OF SECURITIES

                 On September 30, 1997, Remy Capital and Remy Investors entered
                 into an Underwriting Agreement dated September 30, 1997 (the
                 "Underwriting Agreement") by and between the Issuer,
                 Prudential Securities Incorporated,





                               Page 9 of 12 Pages
<PAGE>   10
                 Lehman Brothers Inc., Rauscher Pierce Refsnes, Inc. and
                 Simmons & Company International, as Representatives of the
                 several Underwriters listed on Schedule 2 thereto (the
                 "Underwriters") and the Selling Security holders listed on
                 Schedules 1-A and 1-B thereto, including Remy Capital and Remy
                 Investors.  Pursuant to the Underwriting Agreement, Remy
                 Capital has agreed to sell to the several Underwriters and the
                 Underwriters have agreed to purchase 1,607,888 shares of
                 Common Stock owned directly by Remy Capital at a price of
                 $39.50 per share (less an underwriting discount of $1.78 per
                 share).  Remy Capital also has agreed to sell to the
                 Underwriters and the Underwriters have agreed to purchase Remy
                 Capital's share of the Remy Option (representing 165,000
                 shares following the stock split) at a price of $35.824 per
                 warrant share (the offering price less underwriting discounts
                 and applicable exercise price).  In addition, Remy Capital and
                 Remy Investors have granted the Underwriters a 30-day
                 overallotment option whereby Remy Capital has agreed to sell to
                 the Underwriters an additional 192,675 shares directly owned by
                 it at $39.50 per share (less an underwriting discount of 1.78
                 per share) and Remy Investors has agreed to sell to the
                 Underwriters its share of the Remy Option at a price of $35.824
                 per warrant share (the offering price less underwriting
                 discounts and applicable exercise price).

         (d) - (e)        Not Applicable.

ITEM 6.          CONTRACTS, ARRANGEMENTS, UNDERSTANDINGS OR RELATIONSHIPS WITH
                 RESPECT TO SECURITIES OF ISSUER

         Pursuant to a stock purchase agreement dated March 14, 1995, between
Bear, Stearns & Co. Inc. ("Bear Stearns") and Remy Capital, Bear Stearns
assigned to Remy Capital all of its rights and interest in a registration
rights agreement between Bear Stearns and Company.  The Board of Directors of
Company has approved such assignment.  The registration rights agreement to
Remy Capital grants the right on three separate occasions to require the
Company to register 5,218,650 shares of the Common Stock held by Remy Capital
for sale under the Securities Act of 1933 (the "Securities Act") and on an
unlimited basis to register such shares for sale under the Securities Act by
including such shares in any registration statement proposed to be filed by the
Company with the Securities and Exchange Commission.  The registration rights
agreement also provides that in connection with any such registration, the
Company will indemnify Remy Capital against, and provide contribution with
respect to, certain liabilities, including liabilities incurred under the
Securities Act.  The foregoing description of the registration rights agreement
is a summary and is qualified in its entirety by reference to such agreement
filed as Exhibit 2 hereto which is incorporated herein by reference.

         On September 30, 1997, Remy Capital and Remy Investors entered into an
Underwriting Agreement dated September 30, 1997 (the "Underwriting Agreement")
by and between the Issuer, Prudential Securities Incorporated, Lehman Brothers
Inc., Rauscher Pierce Refsnes, Inc. and Simmons & Company International, as
Representatives of the several Underwriters listed on Schedule 2 thereto (the
"Underwriters") and the Selling Security holders listed on Schedules 1-A and
1-B thereto, including Remy Capital and Remy Investors.  Pursuant to the
Underwriting Agreement, Remy Capital has agreed to sell to the several
Underwriters and the Underwriters have agreed to purchase 1,607,888 shares of
Common Stock owned directly by Remy Capital at a price of $39.50 per share
(less an underwriting discount of $1.78 per share).  Remy Capital also has
agreed to sell to the Underwriters and the Underwriters have agreed to purchase
Remy Capital's share of the Remy Option (representing 165,000 shares following
the stock split) at a price of $35.824 per warrant share (the offering price
less underwriting discounts and applicable exercise price).  In addition, Remy
Capital and Remy Investors have granted the Underwriters a 30-day overallotment
option whereby Remy Capital





                              Page 10 of 12 Pages
<PAGE>   11
has agreed to sell to the Underwriters an additional 192,675 shares directly
owned by it at $39.50 per share (less an underwriting discount of 1.78 per
share) and Remy Investors has agreed to sell to the Underwriters its share of
the Remy Option at a price of $35.824, per warrant share (the offering price
less underwriting discounts and applicable exercise price).

ITEM 7.          MATERIAL TO BE FILED AS EXHIBITS.

         (1)     Joint Acquisition Statement

         (2)     Registration Rights Agreement dated March 25, 1994 between
                 Bear Stearns and UTI Energy Corp., assigned on March 14, 1995
                 to Remy Capital (previously filed with initial filing of
                 Schedule 13D).

         (3)     Stock Option Agreement entered into effective as of December
                 19, 1995, between Remy Investors and UTI Energy Corp.
                 (previously filed with Amendment No. 1 to Schedule 13D).

         (4)     Form of Stock Option Agreement between UTI Energy Corp. and
                 Mark S. Siegel, relating to (i) the grant to Mr. Siegel of
                 options to purchase 165,000 shares at $8.13 per share effective
                 February 13, 1997, and (ii) the grant to Mr. Siegel of options
                 to purchase 135,000 shares at $20.00 per share effective July
                 27, 1997.

         (5)     Underwriting Agreement dated September 30, 1997, by and among
                 UTI Energy Corp., Prudential Securities Incorporated, Lehman
                 Brothers Inc., Rauscher Pierce Refsnes, Inc. and Simmons &
                 Company International, as representatives of the several
                 underwriters named therein, and the selling stockholders named
                 therein.




                              Page 11 of 12 Pages
<PAGE>   12
                                   SIGNATURE

         After reasonable inquiry and to the best of our knowledge and belief,
we certify that the information set forth in this statement is true, complete
and correct.

                                   REMY CAPITAL PARTNERS, III, L.P.

                                   By:      Remy Investors and Consultants, Inc.

                                   Its:     General Partner

                                                 /s/ MARK S. SIEGEL
                                            -----------------------------------
                                                     Mark S. Siegel
                                                       President


                                   REMY INVESTORS AND CONSULTANTS, INC.



                                   By:           /s/ MARK S. SIEGEL
                                            -----------------------------------
                                                     Mark S. Siegel
                                                       President


                                                 /s/ MARK S. SIEGEL
                                            -----------------------------------
                                                     Mark S. Siegel





                              Page 12 of 12 Pages
<PAGE>   13
                                 EXHIBIT INDEX

<TABLE>
<CAPTION>
     Exhibit
        No.      Description
    ---------    -----------
       <S>       <C>

       (1)       Joint Acquisition Statement

       (2)       Registration Rights Agreement dated March 25, 1994 between
                 Bear Stearns and UTI Energy Corp., assigned on March 14, 1995
                 to Remy Capital (previously filed with initial filing of
                 Schedule 13D).

       (3)       Stock Option Agreement entered into effective as of December
                 19, 1995, between Remy Investors and UTI Energy Corp.
                 (previously filed with Amendment No. 1 to Schedule 13D).

       (4)       Form of Stock Option Agreement between UTI Energy Corp. and
                 Mark S. Siegel, relating to (i) the grant to Mr. Siegel of
                 options to purchase 165,000 shares at $8.13 per share effective
                 February 13, 1997, and (ii) the grant to Mr. Siegel of options
                 to purchase 135,000 shares at $20.00 per share effective July
                 27, 1997.

       (5)       Underwriting Agreement dated September 30, 1997, by and among
                 UTI Energy Corp., Prudential Securities Incorporated, Lehman
                 Brothers Inc., Rauscher Pierce Refsnes, Inc. and Simmons &
                 Company International, as representatives of the several
                 underwriters named therein, and the selling stockholders named
                 therein.



</TABLE>

<PAGE>   1
                                                                       EXHIBIT 1

                          JOINT ACQUISITION STATEMENT
                          PURSUANT TO RULE 13d-1(f)(1)

         The undersigned acknowledge and agree that the foregoing statement on
Schedule 13D is filed on behalf of each of the undersigned and that all
subsequent amendments to this statement on Schedule 13D shall be filed on
behalf of each of the undersigned without the necessity of filing additional
joint acquisition statements.  The undersigned acknowledge that each shall be
responsible for the timely filing of such amendments, and for the completeness
and accuracy of the information concerning him or its contained therein, but
shall not be responsible for the completeness and accuracy of the information
concerning the other, except to the extent that he or it knows or has reason to
believe that such information is accurate.

Dated:  October 1, 1997


                                   REMY CAPITAL PARTNERS, III, L.P.

                                   By:      Remy Investors and Consultants, Inc.

                                   Its:     General Partner


                                                /s/  MARK S. SIEGEL 
                                            -----------------------------------
                                                     Mark S. Siegel
                                                       President


                                   REMY INVESTORS AND CONSULTANTS, INC.



                                   By:           /s/ MARK S. SIEGEL
                                            -----------------------------------
                                                     Mark S. Siegel
                                                       President

                                                      
                                                 /s/ MARK S. SIEGEL
                                            -----------------------------------
                                                     Mark S. Siegel


<PAGE>   1
                                                                      EXHIBIT 5


                                                                  EXECUTION COPY

                                UTI ENERGY CORP.

                               6,100,000 Shares1/

                                  Common Stock

                             UNDERWRITING AGREEMENT

                                                              September 30, 1997


PRUDENTIAL SECURITIES INCORPORATED
LEHMAN BROTHERS INC.
RAUSCHER PIERCE REFSNES, INC.
SIMMONS & COMPANY INTERNATIONAL
  As a Representatives of the several Underwriters
c/o Prudential Securities Incorporated
One New York Plaza
New York, New York  10292

Dear Sirs:

                 Each of UTI Energy Corp., a Delaware corporation (the
"Company"), the selling securityholders set forth in Schedule 1-A hereto (the
"Selling Securityholders"), and the selling securityholders set forth on
Schedule 1-B hereto (the "Additional Securityholders"), hereby confirms its
agreement with the several underwriters named in Schedule 2 hereto (the
"Underwriters"), for whom you have been duly authorized to act as
representatives (in such capacities, the "Representatives"), as set forth
below.  If you are the only Underwriters, all references herein to the
Representatives shall be deemed to be to the Underwriters.

         1.      Securities.  Subject to the terms and conditions herein
contained, the Company proposes to issue and sell to the several Underwriters
1,575,000 shares and the Selling Securityholders propose to sell to the several
Underwriters 4,360,000 shares and warrants to purchase 165,000 shares, (the
"Firm Securities"), of the Company's Common Stock, par value $.001 per share
("Common Stock").  The Company also proposes to issue and sell to the several
Underwriters not more than 414,825 additional shares of Common Stock and the
Additional Selling Securityholders propose to sell to the several Underwriters
not more than 305,175 additional shares of Common Stock and warrants to
purchase 195,000 shares of Common Stock, if requested by the Representatives as
provided in Section 4 of this Agreement.  Any and all shares of Common Stock to
be purchased by the Underwriters pursuant to such options, including the shares
of Common Stock issuable upon the exercise of the warrants, are referred to
herein as the "Option Securities", and





                 ____________________

          1/    Plus options to purchase from the Company up to 414,825
          additional shares and from the Additional Selling Securityholders up
          to 305,175 additional shares and warrants to purchase 195,000 shares
          to cover over-allotments.

                                      -1-
<PAGE>   2
the Firm Securities and any Option Securities are collectively referred to
herein as the "Securities".  The warrants to purchase shares of Common Stock
included in the Securities to be sold to the Underwriters are referred to
herein as the "Warrants".

         2.      Representations and Warranties of the Company and Drum.  The
Company and Vaughn E. Drum ("Drum") jointly and severally represent and warrant
to, and agree with, each of the several Underwriters that:

                 (a)      The Company meets the requirements for use of Form
         S-3 under the Securities Act of 1933, as amended (the "Act").  A
         registration statement on such Form (File No. 333-35109) with respect
         to the Securities, including a prospectus subject to completion, has
         been filed by the Company with the Securities and Exchange Commission
         (the "Commission") under the Act, and one or more amendments to such
         registration statement may have been so filed.  After the execution of
         this Agreement, the Company will file with the Commission either (i)
         if such registration statement, as it may have been amended, has been
         declared by the Commission to be effective under the Act, either (A)
         if the Company relies on Rule 434 under the Act, a Term Sheet (as
         hereinafter defined) relating to the Securities, that shall identify
         the Preliminary Prospectus (as hereinafter defined) that it
         supplements and, if required to be filed pursuant to Rules 434(c)(2)
         and 424(b), an Integrated Prospectus (as hereinafter defined), in
         either case, containing such information as is required or permitted
         by Rule 434, 430A and 424(b) under the Act or (B) if the Company does
         not rely on Rule 434 under the Act, a prospectus in the form most
         recently included in an amendment to such registration statement (or,
         if no such amendment shall have been filed, in such registration
         statement), with such changes or insertions as are required by Rule
         430A under the Act or permitted by Rule 424(b) under the Act, and in
         the case of clause (i)(A) or (i)(B) of this sentence as have been
         provided to and approved by the Representatives prior to the execution
         of this Agreement, or (ii) if such registration statement, as it may
         have been amended, has not been declared by the Commission to be
         effective under the Act, an amendment to such registration statement,
         including a form of prospectus, a copy of which amendment has been
         furnished to and approved by the Representatives prior to the
         execution of this Agreement.  The Company may also file a related
         registration statement with the Commission pursuant to Rule 462(b)
         under the Act for the purpose of registering certain additional
         Securities.  As used in this Agreement, the term "Original
         Registration Statement" means the registration statement initially
         filed relating to the Securities, as amended at the time when it was
         or is declared effective, including (A) all financial schedules and
         exhibits thereto, (B) all documents incorporated by reference therein
         filed under the Securities Exchange Act of 1934, as amended (the
         "Exchange Act") and (C) any information omitted therefrom pursuant to
         Rule 430A under the Act and included in the Prospectus (as hereinafter
         defined) or, if required to be filed pursuant to Rule 434(c)(2) and
         424(b), in the Integrated Prospectus; the term "Rule 462(b)
         Registration Statement" means any registration statement filed with
         the Commission pursuant to Rule 462(b) under the Act (including the
         Registration Statement and any Preliminary Prospectus or Prospectus
         incorporated therein at the time such Registration Statement becomes
         effective); the term "Registration Statement" includes both the
         Original Registration Statement and any Rule 462(b)





                                      -2-
<PAGE>   3
         Registration Statement; the term "Preliminary Prospectus" means each
         prospectus subject to completion filed with such registration
         statement or any amendment thereto (including the prospectus subject
         to completion, if any, included in the Registration Statement or any
         amendment thereto at the time it was or is declared effective),
         including all documents incorporated by reference therein filed under
         the Exchange Act the term "Prospectus" means:

                 (A)      if the Company relies on Rule 434 under the Act, the
                 Term Sheet relating to the Securities that is first filed
                 pursuant to Rule 424(b)(7) under the Act, together with the
                 Preliminary Prospectus identified therein that such Term Sheet
                 supplements:

                 (B)      if the Company does not rely on Rule 434 under the
                 Act, the prospectus first filed with the Commission pursuant
                 to Rule 424(b) under the Act; or

                 (C)      if the Company does not rely on Rule 434 under the
                 Act and if no prospectus is required to be filed pursuant to
                 Rule 424(b) under the Act, the prospectus included in the
                 Registration Statement, including, in the case of clauses (A),
                 (B) or (C) of this sentence, all documents incorporated by
                 reference therein filed under the Exchange Act; the term
                 "Integrated Prospectus" means a prospectus first filed with
                 the Commission pursuant to Rules 434(c)(2) and 424(b) under
                 the Act; and the Term "Term Sheet" means any abbreviated term
                 sheet that satisfies the requirements of Rule 434 under the
                 Act.  Any reference in this Agreement to an "amendment or
                 supplement" to any Preliminary Prospectus, the Prospectus or
                 any Integrated Prospectus or an "amendment" to any
                 registration statement (including the Registration Statement)
                 shall be deemed to include any document incorporated by
                 reference therein that is filed with the Commission under the
                 Exchange Act after the date of such Preliminary Prospectus,
                 Prospectus, Integrated Prospectus or registration statement,
                 as the case may be; any reference herein to the "date" of a
                 Prospectus that includes a Term Sheet shall mean the date of
                 such Term Sheet.  For purposes of the preceding sentence, any
                 reference to the "effective date" of an amendment to a
                 registration statement shall, if such amendment is effected by
                 means of the filing with the Commission under the Exchange Act
                 of a document incorporated by reference in such registration
                 statement, be deemed to refer to the date on which such
                 document was so filed with the Commission.

                 (b)      The Commission has not issued any order preventing or
         suspending the use of any Preliminary Prospectus.  When any
         Preliminary Prospectus and any amendment or supplement thereto was
         filed with the Commission, it (i) contained all statements required to
         be stated therein in accordance with, and complied in all material
         respects with the requirements of, the Act, the Exchange Act and the
         respective rules and regulations of the Commission thereunder, and
         (ii) did not include any untrue statement of a material fact or omit
         to state any material fact necessary in order to make the statements
         therein, in the light of the circumstances under which they were made,
         not misleading.  When the Registration Statement or





                                      -3-
<PAGE>   4
         any amendment thereto was or is declared effective, it (i) contained
         or will contain all statements required to be stated therein in
         accordance with, and complied or will comply in all material respects
         with the requirements of, the Act, the Exchange Act and the respective
         rules and regulations of the Commission thereunder and (ii) did not or
         will not include any untrue statement of a material fact or omit to
         state any material fact necessary to make the statements therein not
         misleading.  When the Prospectus or any Term Sheet that is a part
         thereof or any Integrated Prospectus or any amendment or supplement to
         the Prospectus is filed with the Commission pursuant to Rule 424(b)
         (or, if the Prospectus or part thereof or such amendment or supplement
         is not required to be so filed, when the Registration Statement or the
         amendment thereto containing such amendment or supplement to the
         Prospectus was or is declared effective), on the date when the
         Prospectus is otherwise amended or supplemented and on the Firm
         Closing Date and any Option Closing Date (both as hereinafter
         defined), each of the Prospectus, and, if required to be filed
         pursuant to Rules 434(c)(2) and 424(b) under the Act, the Integrated
         Prospectus as amended or supplemented at any such time, (i) contained
         or will contain all statements required to be stated therein in
         accordance with, and complied or will comply in all material respects
         with the requirements of, the Act, the Exchange Act and the respective
         rules and regulations of the Commission thereunder and (ii) did not or
         will not include any untrue statement of a material fact or omit to
         state any material fact necessary in order to make the statements
         therein, in the light of the circumstances under which they were made,
         not misleading.  The foregoing provisions of this paragraph (b) do not
         apply to statements or omissions made in any Preliminary Prospectus or
         any amendment or supplement thereto, the Registration Statement or any
         amendment thereto the Prospectus or, if required to be filed pursuant
         to Rules 434(c)(2) and 424(b) and the Act, the Integrated Prospectus
         or any amendment or supplement thereto in reliance upon and in
         conformity with written information furnished to the Company by any
         Underwriter through the Representatives specifically for use therein.

                 (c)      If the Company has elected to rely on Rule 462(b) and
         the Rule 462(b) Registration Statement has not been declared effective
         (i) the Company has filed a Rule 462(b) Registration Statement in
         compliance with and that is effective upon filing pursuant to Rule
         462(b) and has received confirmation of its receipt and (ii) the
         Company has given irrevocable instructions for transmission of the
         applicable filing fee in connection with the filing of the Rule 462(b)
         Registration Statement, in compliance with Rule 111 promulgated under
         the Act or the Commission has received payment of such filing fee.

                 (d)      Schedule 3 hereto is a complete and accurate schedule
         of (i) the names and jurisdictions of organization of all
         corporations, partnerships and joint ventures (the "Subsidiaries") in
         which the Company has a direct or indirect majority equity interest
         and which is required to be listed on Exhibit 21 to an Annual Report
         on Form 10-K of the Company if such report were to be filed with the
         Commission at the time of the execution and delivery of this
         Agreement.  The Company and each of the Subsidiaries have been duly
         organized and are validly existing as corporations in good standing
         under the laws of their respective jurisdictions of incorporation and
         are duly qualified to transact business as foreign corporations and
         are in good





                                      -4-
<PAGE>   5
         standing under the laws of all other jurisdictions where the ownership
         or leasing of their respective properties or the conduct of their
         respective businesses requires such qualification, except where the
         failure to do so or qualify or be in good standing would not have a
         material adverse effect on the business, financial condition or
         results of operations of the Company and the Subsidiaries, taken as a
         whole (a "Material Adverse Effect").

                 (e)      The Company and each of its subsidiaries have full
         corporate power to own or lease their respective properties and
         conduct their respective businesses as described in the Registration
         Statement, each of the Prospectus and any Integrated Prospectus or, if
         the Prospectus and any required Integrated Prospectus are not in
         existence, the most recent Preliminary Prospectus; and the Company has
         full corporate power to enter into this Agreement and to carry out all
         the terms and provisions hereof to be carried out by it.

                 (f)      The issued shares of capital stock of each of the
         Company's subsidiaries have been duly authorized and validly issued,
         are fully paid and nonassessable and are owned beneficially by the
         Company free and clear of any security interests, liens, encumbrances,
         equities or claims except as set forth on Schedule 3 hereto.

                 (g)      The Company has an authorized, issued and outstanding
         capitalization as set forth in each of the Prospectus and any
         Integrated Prospectus or, if the Prospectus and any required
         Integrated Prospectus are not in existence, the most recent
         Preliminary Prospectus.  All of the issued shares of capital stock of
         the Company have been duly authorized and validly issued and are fully
         paid and nonassessable.  The Firm Securities and the Option Securities
         have been duly authorized and at the Firm Closing Date or the related
         Option Closing Date (as the case may be), after payment therefor in
         accordance herewith and the exercise of the Warrants by the
         Underwriters in accordance with the terms of the Warrants, will be
         validly issued, fully paid and nonassessable.  No holders of
         outstanding shares of capital stock of the Company are entitled as
         such to any preemptive or other rights to subscribe for any of the
         Securities, and no holder of securities of the Company has any right
         which has not been fully exercised or waived to require the Company to
         register the offer or sale of any securities owned by such holder
         under the Act in the public offering contemplated by this Agreement.

                 (h)      The capital stock of the Company conforms to the
         description thereof contained in each of the Prospectus and any
         Integrated Prospectus or, if the Prospectus and any required
         Integrated Prospectus are not in existence, the most recent
         Preliminary Prospectus.

                 (i)      Except as described or specifically referred to in
         each of the Prospectus and any Integrated Prospectus (or, if the
         Prospectus and any required Integrated Prospectus are not in
         existence, the most recent Preliminary Prospectus), there are not
         outstanding (A) securities or obligations of the Company or any of its
         subsidiaries convertible into or exchangeable for any capital stock of
         the Company or any such subsidiary, (B) warrants, rights or options to
         subscribe for or purchase





                                      -5-
<PAGE>   6
         from the Company or any such subsidiary any such capital stock or any
         such convertible or exchangeable securities or obligations, or (C)
         obligations of the Company or any such subsidiary to issue any shares
         of capital stock, any such convertible or exchangeable securities or
         obligations, or any such warrants, rights or options.

                 (j)      The historical consolidated financial statements and
         schedules of the Company and its consolidated subsidiaries included in
         the Registration Statement and the Prospectus or any Integrated
         Prospectus (or, if the Prospectus and any required Integrated
         Prospectus are not in existence, the most recent Preliminary
         Prospectus) fairly present the financial position of the Company and
         its consolidated subsidiaries and the results of operations and the
         cash flows of the Company and its consolidated subsidiaries at the
         respective dates and for the respective periods to which they apply.
         Such financial statements and schedules have been prepared in
         accordance with generally accepted accounting principles consistently
         applied throughout the periods involved (except as otherwise noted
         therein).  The selected financial data set forth under the caption
         "Selected Consolidated Financial Data" in each of the Prospectus and
         any Integrated Prospectus or, if the Prospectus and any required
         Integrated Prospectus are not in existence, the most recent
         Preliminary Prospectus, fairly present, on the basis stated in each of
         Prospectus and any Integrated Prospectus (or such Preliminary
         Prospectus), the information included therein.

                 (k)      Ernst & Young, LLP, who have certified certain
         financial statements of the Company and its consolidated subsidiaries
         and delivered their reports with respect to the audited consolidated
         financial statements and schedules included in the Registration
         Statement and each of the Prospectus and any Integrated Prospectus
         (or, if the Prospectus and any required Integrated Prospectus are not
         in existence, the most recent Preliminary Prospectus), are independent
         public accountants within the meaning of the Act, the Exchange Act and
         the related published rules and regulations thereunder.

                 (l)      Coopers & Lybrand L.L.P., who have certified certain
         financial statements of Quarles Drilling Company and delivered their
         report with respect to such financial statements included or
         incorporated by reference in the Registration Statement and each of
         the Prospectus and any Integrated prospectus (or, if the Prospectus
         and any required Integrated Prospectus are not in existence, the most
         recent Preliminary Prospectus), are independent public accountants
         within the meaning of the Act, the Exchange Act and the related
         published rules and regulations thereunder.

                 (m)      The execution and delivery of this Agreement have
         been duly authorized by the Company and this Agreement has been duly
         executed and delivered by the Company, and is the valid and binding
         agreement of the Company, enforceable against the Company in
         accordance with its terms, except as rights to indemnity and
         contribution may be limited under applicable law.





                                      -6-
<PAGE>   7
                 (n)      No legal or governmental proceedings are pending to
         which the Company or any of its subsidiaries is a party or to which
         the property of the Company or any of its subsidiaries is subject that
         are required to be described in the Registration Statement or each of
         the Prospectus and any Integrated Prospectus (or, if the Prospectus
         and any required Integrated Prospectus are not in existence, the most
         recent Preliminary Prospectus), and no such proceedings have been
         threatened against the Company or any of its subsidiaries or with
         respect to any of their respective properties; and no contract or
         other document is required to be described in the Registration
         Statement or the Prospectus or any Integrated Prospectus or to be
         filed as an exhibit to the Registration Statement that is not
         described therein (or, if the Prospectus and any required Integrated
         Prospectus are not in existence, the most recent Preliminary
         Prospectus) or filed as required.

                 (o)      The issuance, offering and sale of the Securities to
         the Underwriters by the Company pursuant to this Agreement, the
         compliance by the Company with the other provisions of this Agreement
         and the consummation of the other transactions herein contemplated do
         not (i) require the consent, approval, authorization, registration or
         qualification of or with any governmental authority, except such as
         have been obtained, such as may be required under state securities or
         blue sky laws and, if the Registration Statement is not effective
         under the Act as of the time of execution hereof, such as may be
         required (and shall be obtained as provided in this Agreement) under
         the Act, or (ii) conflict with or result in a breach or violation of
         any of the terms and provisions of, or constitute a default under, any
         indenture, mortgage, deed of trust, lease or other agreement or
         instrument to which the Company or any of its subsidiaries is a party
         or by which the Company or any of its subsidiaries or any of their
         respective properties are bound, or the charter documents or by-laws
         of the Company or any of its subsidiaries, or any statute or any
         judgment, decree, order, rule or regulation of any court or other
         governmental authority or any arbitrator applicable to the Company or
         any of its subsidiaries except for such conflicts, defaults,
         violations, creations or impositions that would not affect the
         consummation of the Agreement or the issuance of the Securities or
         have a Material Adverse Effect.

                 (p)      Subsequent to the respective dates as of which
         information is given in the Registration Statement, the Prospectus or
         any Integrated Prospectus (or, if the Prospectus and any required
         Integrated Prospectus are not in existence, the most recent
         Preliminary Prospectus), neither the Company nor any of its
         subsidiaries has sustained any loss that is material to the Company
         and its subsidiaries taken as a whole or interference with their
         respective businesses or properties from fire, flood, hurricane,
         accident or other calamity, whether or not covered by insurance, or
         from any labor dispute or any legal or governmental proceeding and
         there has not been any material adverse change, or any development
         involving a prospective material adverse change, in the condition
         (financial or otherwise), management, business prospects, net worth,
         or results of operations of the Company and its subsidiaries taken as
         a whole, except in each case as described in or contemplated by the
         each of the Prospectus and any Integrated Prospectus (or, if the
         Prospectus and any required Integrated Prospectus are not in
         existence, the most recent Preliminary Prospectus).





                                      -7-
<PAGE>   8
                 (q)      The Company has not, directly or indirectly, (i)
         taken any action designed to cause or to result in, or that has
         constituted or which might reasonably be expected to constitute, the
         stabilization or manipulation of the price of any security of the
         Company to facilitate the sale or resale of the Securities or (ii)
         since the filing of the Registration Statement (A) sold, bid for,
         purchased, or paid anyone any compensation for soliciting purchases
         of, the Securities or (B) paid or agreed to pay to any person any
         compensation for soliciting another to purchase any other securities
         of the Company (except for the sale of Securities by the Selling
         Securityholders and Additional Selling Securityholders under this
         Agreement and except in connection with acquisitions by the Company or
         its subsidiaries of assets or businesses in the oilfield services
         industry).

                 (r)      The Company has not distributed and, prior to the
         later of (i) the Closing Date and (ii) the completion of the
         distribution of the Securities, will not distribute any offering
         material in connection with the offering and sale of the Securities
         other than the Registration Statement or any amendment thereto, any
         Preliminary Prospectus or the Prospectus or any amendment or
         supplement thereto, or other materials, if any, permitted by the Act.

                 (s)      Subsequent to the respective dates as of which
         information is given in the Registration Statement and the Prospectus
         (or, if the Prospectus is not in existence, the most recent
         Preliminary Prospectus):  (1) the Company and its subsidiaries, prior
         to the Firm Closing Date, have not entered into any transaction not in
         the ordinary course of business that is material to the Company and
         its subsidiaries taken as a whole; (2) the Company has not purchased
         any of its outstanding capital stock, nor declared, paid or otherwise
         made any dividend or distribution of any kind on its capital stock;
         and (3) there has not been any material change in the capital stock,
         short-term debt or long-term debt of the Company and its consolidated
         subsidiaries, except in each case as described in or contemplated by
         the Prospectus (or, if the Prospectus is not in existence, the most
         recent Preliminary Prospectus).

                 (t)      The Company and each of its subsidiaries have good
         title in fee simple to all items of real property and good title to
         all personal property owned by each of them, in each case free and
         clear of any security interests, liens, encumbrances, equities, claims
         and other defects, except such as do not materially and adversely
         affect the value of such property and do not interfere with the use
         made or proposed to be made of such property by the Company or such
         subsidiary, and any real property and buildings held under lease by
         the Company or any such subsidiary are held under valid, subsisting
         and enforceable leases, with such exceptions as are not material to
         the Company and its subsidiaries taken as a whole and do not
         materially interfere with the use made or proposed to be made of such
         property and buildings by the Company or such subsidiary, in each case
         except as described in or contemplated by the Prospectus (or, if the
         Prospectus is not in existence, the most recent Preliminary
         Prospectus).

                 (u)      The Company and each of its subsidiaries are insured
         by insurers of recognized financial responsibility against such losses
         and risks and in such





                                      -8-
<PAGE>   9
         amounts as are prudent and customary in the businesses in which they
         are engaged; neither the Company nor any such subsidiary has been
         refused any insurance coverage sought or applied for; and neither the
         Company nor any such subsidiary has any reason to believe that it will
         not be able to renew its existing insurance coverage as and when such
         coverage expires or to obtain similar coverage from similar insurers
         as may be necessary to continue its business at a cost that would not
         materially and adversely affect the condition (financial or
         otherwise), business prospects, net worth or results of operations of
         the Company and its subsidiaries taken as a whole, except as described
         in or contemplated by the Prospectus (or, if the Prospectus is not in
         existence, the most recent Preliminary Prospectus).

                 (v)      The Company and its subsidiaries possess all material
         certificates, authorizations and permits issued by the appropriate
         federal, state or foreign regulatory authorities necessary to conduct
         their respective businesses, and neither the Company nor any such
         subsidiary has received any notice of proceedings relating to the
         revocation or modification of any such certificate, authorization or
         permit which, singly or in the aggregate, if the subject of an
         unfavorable decision, ruling or finding, would result in a material
         adverse change in the condition (financial or otherwise), business
         prospects, net worth or results of operations of the Company and its
         subsidiaries taken as a whole, except as described in or contemplated
         by the Prospectus (or, if the Prospectus is not in existence, the most
         recent Preliminary Prospectus) .

                 (w)      The Company is not an "investment company" within the
         meaning of the Investment Company Act of 1940, as amended (the "1940
         Act"), and is not subject to regulation as an investment company under
         the 1940 Act.  This transaction will not cause the Company to become
         an investment company subject to registration under such Act.

                 (x)      The Company has filed all foreign, federal, state and
         local tax returns that are required to be filed or has requested
         extensions thereof (except in any case in which the failure so to file
         would not have a Material Adverse Effect) and has paid all taxes
         required to be paid by it and any other assessment, fine or penalty
         levied against it, to the extent that any of the foregoing is due and
         payable, except for any such assessment, fine or penalty that would
         not have a Material Adverse Effect that is currently being contested
         in good faith or as described in or contemplated by the Prospectus
         (or, if the Prospectus is not in existence, the most recent
         Preliminary Prospectus).

                 (y)      Neither the Company nor any of its subsidiaries is in
         violation of any federal or state law or regulation relating to
         occupational safety and health or to the storage, handling or
         transportation of hazardous or toxic materials and the Company and its
         subsidiaries have received all permits, licenses or other approvals
         required of them under applicable federal and state occupational
         safety and health and environmental laws and regulations to conduct
         their respective businesses, and the Company and each such subsidiary
         is in compliance with all terms and conditions of any such permit,
         license or approval, except any such violation of law or regulation,
         failure to receive required permits, licenses or other approvals or





                                      -9-
<PAGE>   10
         failure to comply with the terms and conditions of such permits,
         licenses or approvals which would not, singly or in the aggregate,
         have a Material Adverse Effect, except as described in or contemplated
         by the Prospectus (or, if the Prospectus is not in existence, the most
         recent Preliminary Prospectus).

                 (z)      Each certificate signed by any officer of the Company
         and delivered to the Representatives or counsel for the Underwriters
         pursuant to this Agreement or in connection with the payment of the
         purchase price and delivery of the certificates for the Firm
         Securities or the Option Securities shall be deemed to be a
         representation and warranty by the Company to each Underwriter as to
         the matters covered thereby.

         3.      Representations and Warranties of the Selling Securityholders.

                 Each Selling Securityholder represents and warrants to, and
agrees with, each of the several Underwriters that:

                 (a)      Such Selling Securityholder has full power (corporate
         and other) to enter into this Agreement and to sell, assign, transfer
         and deliver to the Underwriters the Securities to be sold by such
         Selling Securityholder hereunder in accordance with the terms of this
         Agreement; the execution and delivery of this Agreement have been duly
         authorized by all necessary corporate and other action of such Selling
         Securityholder; and this Agreement has been duly executed and
         delivered by such Selling Securityholder.

                 (b)      Such Selling Securityholder has duly executed and
         delivered a power of attorney and custody agreement (with respect to
         such Selling Securityholder, the "Power-of-Attorney" and the "Custody
         Agreement", respectively), each in the form heretofore delivered to
         the Representatives, appointing Mark S. Siegel, Vaughn E. Drum and P.
         Blake Dupuis, and each of them, as such Selling Securityholder's
         attorney-in-fact (the "Attorney-in-Fact") with authority to execute,
         deliver and perform this Agreement on behalf of such Selling
         Securityholder and appointing Chase Mellon Shareholder Services as
         custodian thereunder (the "Custodian").  Certificates in negotiable
         form, endorsed in blank or accompanied by blank stock powers duly
         executed, with signatures appropriately guaranteed, representing the
         Securities to be sold by such Selling Securityholder hereunder have
         been deposited with the Custodian pursuant to the Custody Agreement
         for the purpose of delivery pursuant to this Agreement.  Such Selling
         Securityholder has full power (corporate and other) to enter into the
         Custody Agreement and the Power-of-Attorney and to perform its
         obligations under the Custody Agreement. The execution and delivery of
         the Custody Agreement and the Power-of-Attorney have been duly
         authorized by all necessary corporate and other action of such Selling
         Securityholder; the Custody Agreement and the Power-of-Attorney have
         been duly executed and delivered by such Selling Securityholder and,
         assuming due authorization, execution and delivery by the Custodian,
         are the legal, valid, binding and enforceable instruments of such
         Selling Securityholder.  Such Selling Securityholder agrees that each
         of the Securities represented by the certificates on deposit with the
         Custodian is subject to the interests of the Underwriters hereunder,
         that the arrangements made for





                                      -10-
<PAGE>   11
         such custody, the appointment of the Attorney-in-Fact and the right,
         power and authority of the Attorney-in-Fact to execute and deliver
         this Agreement, to agree on the price at which the Securities
         (including such Selling Securityholder's Securities) are to be sold to
         the Underwriters, and to carry out the terms of this Agreement, are to
         that extent irrevocable and that the obligations of such Selling
         Securityholder hereunder shall not be terminated, except as provided
         in this Agreement or the Custody Agreement, by any act of such Selling
         Securityholder, by operation of law or otherwise, whether in the case
         of any individual Selling Securityholder by the death or incapacity of
         such Selling Securityholder, in the case of a trust or estate by the
         death of the trustee or trustees or the executor or executors or the
         termination of such trust or estate, or in the case of a corporate or
         partnership Selling Securityholder by its liquidation or dissolution
         or by the occurrence of any other event. If any individual Selling
         Securityholder, trustee or executor should die or become incapacitated
         or any such trust should be terminated, or if any corporate or
         partnership Selling Securityholder shall liquidate or dissolve, or if
         any other event should occur, before the delivery of such Securities
         hereunder, the certificates for such Securities deposited with the
         Custodian shall be delivered by the Custodian in accordance with the
         respective terms and conditions of this Agreement as if such death,
         incapacity, termination, liquidation or dissolution or other event had
         not occurred, regardless of whether or not the Custodian or the
         Attorney-in-Fact shall have received notice thereof.

                 (c)      Such Selling Securityholder has valid title to the
         Securities to be sold by such Selling Securityholder hereunder and
         upon sale and delivery of, and payment for, such Securities, as
         provided herein, and the payment of the exercise price with respect to
         any Securities issuable on exercise of the Warrants, the Underwriters
         will receive valid title to such Securities free and clear of any
         adverse claims, assuming that the Underwriters have acquired such
         Securities for value, in good faith and without notice of any adverse
         claim.

                 (d)      Such Selling Securityholder has not, directly or
         indirectly, (i) taken any action designed to cause or result in, or
         that has constituted or which might reasonably be expected to
         constitute, the stabilization or manipulation of the price of any
         security of the Company to facilitate the sale or resale of the
         Securities or (ii) since the filing of the Registration Statement (A)
         sold, bid for, purchased, or paid anyone any compensation for
         soliciting purchases of, the Securities or (B) paid or agreed to pay
         to any person any compensation for soliciting another to purchase any
         other securities of the Company (except for the sale of Securities by
         the Selling Securityholders under this Agreement).

                 (e)      To the extent that any statements or omissions are
         made in the Registration Statement, any Preliminary Prospectus, the
         Prospectus or any amendment or supplement thereto in reliance upon and
         in conformity with written information furnished to the Company by
         such Selling Securityholder specifically for use therein, such
         Preliminary Prospectus did, and the Registration Statement and the
         Prospectus and any amendments or supplements thereto, when they become
         effective or are filed with the Commission, as the case may be, will,
         with respect to such information, conform in all material respects to
         the requirements





                                      -11-
<PAGE>   12
         of the Act, the Exchange Act and the respective rules and regulations
         of the Commission thereunder and will, with respect to such
         information, not contain any untrue statement of a material fact or
         omit to state any material fact required to be stated therein or
         necessary to make the statements therein, in the light of the
         circumstances under which they are made, not misleading.  Such Selling
         Securityholder has reviewed the Prospectus (or, if the Prospectus is
         not in existence, the most recent Preliminary Prospectus) and the
         Registration Statement, and the information regarding such Selling
         Securityholder set forth therein under the caption "Principal and
         Selling Stockholders" is complete and accurate.

                 (f)      Such Selling Securityholder has no actual knowledge
         of any material adverse information specifically concerning the
         Company that is not set forth in the Registration Statement or the
         Prospectus (or, if the Prospectus is not in existence, the most recent
         Preliminary Prospectus) that is prompting such Selling Securityholder
         to sell Securities pursuant hereto.

                 (g)      The sale of the Securities to the Underwriters by
         such Selling Securityholder pursuant to this Agreement, the compliance
         by such Selling Securityholder with the other provisions of this
         Agreement, the Custody Agreement and the consummation of the other
         transactions herein contemplated do not (i) require the consent,
         approval, authorization, registration or qualification of or with any
         governmental authority, except such as have been obtained, such as may
         be required under state securities or blue sky laws and, if the
         registration statement filed with respect to the Securities (as
         amended) is not effective under the Act as of the time of execution
         hereof, such as may be required (and shall be obtained as provided in
         this Agreement) under the Act and the Exchange Act, or (ii) conflict
         with or result in a breach or violation of any of the terms and
         provisions of, or constitute a default under any indenture, mortgage,
         deed of trust, lease or other agreement or instrument to which such
         Selling Securityholder or any of its subsidiaries is a party or by
         which such Selling Securityholder or any of its subsidiaries or any of
         such Selling Securityholder's properties are bound, or the charter
         documents or by-laws of such Selling Securityholder or any of its
         subsidiaries or any statute or any judgment, decree, order, rule or
         regulation of any court or other governmental authority or any
         arbitrator applicable to such Selling Securityholder or any of its
         subsidiaries."

                 (h)      The Selling Securityholders have not distributed and,
         prior to the later of (i) the Closing Date and (ii) the completion of
         the distribution of the shares, will not distribute any offering
         material in connection with the offering and sale of the Securities
         other than the Registration Statement or any amendment thereto, any
         Preliminary Prospectus or the Prospectus or any amendment or
         supplement thereto, or other materials, if any, permitted by the Act.

         4.      Purchase, Sale and Delivery of the Securities.  (a) On the
basis of the representations, warranties, agreements and covenants herein
contained and subject to the terms and conditions herein set forth, the Company
agrees to issue and sell, and each of the Selling Securityholders, severally
and not jointly, agrees to sell, to each of the Underwriters, and each of the
Underwriters, severally and not jointly, agrees to purchase





                                      -12-
<PAGE>   13
from the Company and the Selling Securityholders, at a purchase price of (i)
$39.50 per share of Common Stock to be sold and (ii) with respect to the
Warrants to purchase 165,000 shares of Common Stock held by Remy Capital
Partners III, L.P.  to be sold, $39.50 per share of Common Stock issuable upon
exercise of the Warrants less the exercise price of 1 43/48 per share, the
number of Firm Securities set forth opposite the name of such Underwriter in
Schedule 2 hereto.  One or more certificates in definitive form for the Firm
Securities that the several Underwriters have agreed to purchase hereunder, and
in such denomination or denominations and registered in such name or names as
the Representatives request upon notice to the Company at least 48 hours prior
to the Firm Closing Date, shall be delivered by or on behalf of the Company and
each of the Selling Securityholders to the Representatives for the respective
accounts of the Underwriters, against payment by or on behalf of the
Underwriters of the purchase price therefor by wire transfer in same-day funds
(the "Wired Funds") to the account designated by the Company and each of the
Selling Securityholder.  Such delivery of and payment for the Firm Securities
shall be made at the offices of Baker & Botts, L.L.P., One Shell  Plaza, 910
Louisiana, Houston, Texas  77002 at 9:30 A.M., New York City time, on September
6, 1997, or at such other place, time or date as the Representatives and the
Company may agree upon or as the Representatives may determine pursuant to
Section 11 hereof, such time and date of delivery against payment being herein
referred to as the "Firm Closing Date".  The Company and each of the Selling
Securityholders will make such certificate or certificates for the Firm
Securities available for checking and packaging by the Representatives at the
offices in New York, New York of the Company's transfer agent or registrar or
of Prudential Securities Incorporated at least 24 hours prior to the Firm
Closing Date.

         (b)     For the purpose of covering any over-allotments in connection
with the distribution and sale of the Firm Securities as contemplated by the
Prospectus, the Company and Drum hereby grant to the several Underwriters an
option to purchase, severally and not jointly, the Option Securities to be sold
by them.  The purchase price to be paid for any Option Securities shall be the
same price per share as the price per share for the Firm Securities set forth
above in paragraph (a) of this Section 4, plus if the purchase and sale of any
Option Securities takes place after the Firm Closing Date and after the Firm
Securities are trading "ex-dividend", an amount equal to the dividend payable
on such Option Securities.  For purposes of covering any over-allotments in
connection with the distribution and sale of Option Securities as contemplated
by the Prospectus, Remy Investors and Consultants, Incorporated and Kenneth N.
Berns hereby grant to the several underwriters an option to purchase, severally
and not jointly, Warrants to purchase 165,000 and 30,000 shares of Common
Stock, respectively, at an exercise price of $1 43/48 per share.  The purchase
price to be paid for such Warrants shall be at a price per Warrant to purchase
one share of Common Stock equal $39.50 per share of Common Stock issuable upon
exercise of the Warrants less the warrant exercise price, plus, if the purchase
and sale of any Option Securities takes place after the Firm Closing Date and
after the Firm Securities are trading "ex-dividend", an amount equal to the
dividend payable on such Option Securities.  The options granted hereby may be
exercised as to all or any part of the Option Securities, including for this
purpose, the Warrants, from time to time within 30 days after the date of the
Prospectus (or, if such 30th day shall be a Saturday or Sunday or a holiday, on
the next business day thereafter when the New York Stock Exchange is open for
trading).  The Underwriters shall not be under any





                                      -13-
<PAGE>   14
obligation to purchase any of the Option Securities prior to the exercise of
such options.  The Representatives may from time to time exercise the options
granted hereby by giving notice in writing or by telephone (confirmed in
writing) to the Company and the Additional Selling Securityholders as to the
number of Option Securities (including the number of Warrants pursuant to which
Securities may be issuable) as to which the several Underwriters are then
exercising the options and the date and time for delivery of and payment for
such Option Securities.  The exercise of such options shall be effected on a
pro rata basis between the Company and the Additional Selling Securityholders.
Any such date of delivery shall be determined by the Representatives but shall
not be earlier than two business days or later than five business days after
such exercise of the option and, in any event, shall not be earlier than the
Firm Closing Date.  The time and date set forth in such notice, or such other
time on such other date as the Representatives and the Company may agree upon
or as the Representatives may determine pursuant to Section 11 hereof, is
herein called the "Option Closing Date" with respect to such Option Securities
and Warrants.  Upon the exercise of the options as provided herein, the Company
and the Additional Selling Securityholders shall become obligated to sell to
each of the Underwriters and, subject to the terms and conditions set forth
herein, each of the Underwriters (severally and not jointly) shall become
obligated to purchase from the Company and such Additional Selling
Securityholders, the same percentage of the total number of the Option
Securities (including for this purpose the number of Warrants to purchase
Securities) as to which the several Underwriters are then exercising the
options as such Underwriter is obligated to purchase of the aggregate number of
Firm Securities, as adjusted by the Representatives in such manner as they deem
advisable to avoid fractional Shares.  If the options are exercised as to all
or a portion of the Option Securities, one or more certificates in definitive
form for such Option Securities, and payment therefor shall be delivered on the
related Option Closing Date in the manner, and upon the terms and conditions,
set forth in paragraph (a) of this Section 4, except that reference therein to
the Firm Securities and the Firm Closing Date shall be deemed, for purposes of
this paragraph (b), to refer to such Option Securities and Option Closing Date,
respectively.  With respect to the exercise of the options as to all or a
portion of the Warrants to purchase Option Securities, such Warrants shall be
assigned to the Underwriters on the same percentage of the total number of the
Option Securities as to which the several Underwriters are then exercising the
options as such Underwriter is obligated to purchase the aggregate number of
Firm Securities, as adjusted by the Representatives in such manner as they deem
advisable to avoid fractional Shares.  The Company agrees to issue the shares
of Common Stock subject to such Warrants, upon payment by the Underwriters to
the Company of the exercise price with respect to such Warrants.

         (c)     The Company, each Selling Securityholder and each Additional
Selling Securityholder acknowledge that the wire transfer by or on behalf of
the Underwriters of the purchase price for any Common Stock or Warrants does
not constitute a closing of a purchase and sale of Common Stock or Warrants.
Only execution and delivery of a receipt for Common Stock or Warrants, as the
case may be, by the Underwriters indicates completion of the closing of a
purchase of Common Stock or Warrants as the case may be, from the Company and
each Selling Securityholder or Additional Selling Securityholder.  Furthermore,
in the event that the Underwriters wire funds to the Company prior to the
completion of the closing of a purchase of Common Stock or Warrants, as the
case may be, the Company, each Selling Securityholder and each Additional
Selling Securityholder acknowledge that until the Underwriters execute and





                                      -14-
<PAGE>   15
deliver a receipt for Common Stock or Warrants as the case may be, by facsimile
or otherwise, the Company and each Selling Securityholder will not be entitled
to the wired funds and shall return the wired funds to the Underwriters as soon
as practicable (by wire transfer of same-day funds) upon demand.  In the event
that the closing of a purchase of Common Stock or Warrants is not completed and
the wire funds are not returned by the Company and each Selling Securityholder
or Additional Selling Securityholder to the Underwriters on the same day the
wired funds were received by the Company, the Company and each Selling
Securityholder and Additional Selling Securityholder agree to pay to the
Underwriters in respect of each day the wire funds are not returned by the
Company or any Selling Securityholder or Additional Selling Securityholder, as
the case may be, in same-day funds, interest on the amount of such wire funds
in an amount representing the Underwriters' cost of financing as reasonably
determined by Prudential Securities Incorporated.

         (d)     It is understood that any of you, individually and not as one
of the Representatives, may (but shall not be obligated to) make payment on
behalf of any Underwriter or Underwriters for any of the Common Stock or
Warrants to be purchased by such Underwriter or Underwriters.  No such payment
shall relieve such Underwriter or Underwriters from any of its or their
obligations hereunder.

         5.      Offering by the Underwriters.  Upon your authorization of the
release of the Firm Securities, the several Underwriters propose to offer the
Firm Securities for sale to the public upon the terms set forth in the
Prospectus.

         6.      Covenants of the Company.  The Company covenants and agrees
with each of the Underwriters that:

                 (a)      The Company will use its best efforts to cause the
         Registration Statement, if not effective at the time of execution of
         this Agreement, and any amendments thereto to become effective as
         promptly as possible.  If required, the Company will file the
         Prospectus or any Term Sheet that constitutes a part thereof and any
         amendment or supplement thereto with the Commission in the manner and
         within the time period required by Rule 434 and 424(b) under the Act.
         During any time when a prospectus relating to the Securities is
         required to be delivered under the Act, the Company (i) will comply
         with all requirements imposed upon it by the Act and the Exchange Act
         and the respective rules and regulations of the Commission thereunder
         to the extent necessary to permit the continuance of sales of or
         dealings in the Securities in accordance with the provisions hereof
         and of each of the Prospectus and any Integrated Prospectus, as then
         amended or supplemented, and (ii) will not file with the Commission
         the Prospectus or the amendment referred to in the third sentence of
         Section 2(a) hereof, any amendment or supplement to such prospectus or
         any amendment to the Registration Statement or any Rule 462(b)
         Registration Statement of which the Representatives shall not
         previously have been advised and furnished with a copy for a
         reasonable period of time prior to the proposed filing and as to which
         filing the Representatives shall not have given their consent;
         provided, that the foregoing provision of this clause (ii) does not
         prohibit the Company from making filings with the Commission of
         statements and reports that it reasonably believes are required to be
         made under the Exchange Act.





                                      -15-
<PAGE>   16
         The Company will prepare and file with the Commission, in accordance
         with the rules and regulations of the Commission, promptly upon
         request by the Representatives or counsel for the Underwriters, any
         amendments to the Registration Statement or amendments or supplements
         to the Prospectus and any Integrated Prospectus that may be necessary
         or advisable in connection with the distribution of the Securities by
         the several Underwriters, and will use its best efforts to cause any
         such amendment to the Registration Statement to be declared effective
         by the Commission as promptly as possible.  The Company will advise
         the Representatives, promptly after receiving notice thereof, of the
         time when the Registration Statement or any amendment thereto has been
         filed or declared effective or the Prospectus and any Integrated
         Prospectus or any amendment or supplement thereto has been filed and
         will provide evidence satisfactory to the Representatives of each such
         filing or effectiveness.

                 (b)      The Company will advise the Representatives, promptly
         after receiving notice or obtaining knowledge thereof, of (i) the
         issuance by the Commission of any stop order suspending the
         effectiveness of the Original Registration Statement or any Rule
         462(b) Registration Statement or any post-effective amendment thereto
         or any order directed at any document incorporated by reference in the
         Registration Statement or the Prospectus and any required Integrated
         Prospectus or any amendment or supplement thereto or any order
         preventing or suspending the use of any Preliminary Prospectus, or the
         Prospectus and any Integrated Prospectus or any amendment or
         supplement thereto, (ii) the suspension of the qualification of the
         Securities for offering or sale in any jurisdiction, (iii) the
         institution, threatening or contemplation of any proceeding for any
         such purpose or (iv) any request made by the Commission for amending
         the Original Registration Statement or any Rule 462(b) Registration
         Statement, for amending or supplementing any Preliminary Prospectus
         the Prospectus and any Integrated Prospectus or for additional
         information.  The Company will use its best efforts to prevent the
         issuance of any such stop order and, if any such stop order is issued,
         to obtain the withdrawal thereof as promptly as possible.

                 (c)      The Company will arrange for the qualification of the
         Securities for offering and sale under the securities or blue sky laws
         of such jurisdictions as the Representatives may reasonably designate
         and will continue such qualifications in effect for as long as may be
         necessary to complete the distribution of the Securities, provided,
         however, that in connection therewith the Company shall not be
         required to qualify as a foreign corporation or to execute a general
         consent to service of process in any jurisdiction.

                 (d)      If, at any time prior to the later of (i) the final
         date when a prospectus relating to the Securities is required to be
         delivered under the Act or (ii) the Option Closing Date, any event
         occurs as a result of which the Prospectus as then amended or
         supplemented, would include any untrue statement of a material fact or
         omit to state a material fact necessary in order to make the
         statements therein, in the light of the circumstances under which they
         were made, not misleading, or if for any other reason it is necessary
         at any time to amend or supplement, the Prospectus to comply with the
         Act, the Exchange Act or the respective rules or regulations of the
         Commission





                                      -16-
<PAGE>   17
         thereunder, the Company will promptly notify the Representatives
         thereof and, subject to Section 6(a) hereof, will prepare and file
         with the Commission, at the Company's expense, an amendment to the
         Registration Statement or an amendment or supplement to the Prospectus
         or any Integrated Prospectus that corrects such statement or omission
         or effects such compliance.

                 (e)      The Company will, without charge, provide (i) to the
         Representatives and to counsel for the Underwriters a conformed copy
         of the registration statement originally filed with respect to the
         Securities and each amendment thereto (in each case including exhibits
         thereto) or any Rule 462(b) Registration Statement and (ii) so long as
         a prospectus relating to the Securities is required to be delivered
         under the Act, as many copies of each Preliminary Prospectus or the
         Prospectus or any Integrated Prospectus or any amendment or supplement
         thereto as the Representatives may reasonably request; without
         limiting the application of clause (iii) of this sentence, the
         Company, not later than (A) 6:00 P.M., New York City time, on the date
         of determination of the public offering price, if such determination
         occurred at or prior to 10:00 A.M., New York City time on such date of
         (B) 2:00 P.M., New York City time, on the business day following the
         date of determination of the public offering price, if such
         determination occurred after 10:00 A.M., New York City time, on such
         date, will deliver to the Underwriters, without charge, as many copies
         of the Prospectus and any amendment or supplement thereto as the
         Representatives may reasonably request for purposes of confirming
         orders that are expected to settle on the Firm Closing Date.

                 (f)      The Company, as soon as practicable when required,
         will make generally available to its securityholders and to the
         Representatives a consolidated earnings statement of the Company and
         its subsidiaries that satisfies the provisions of Section 11(a) of the
         Act and Rule 158 thereunder.

                 (g)      The Company will apply the net proceeds to the
         Company from the sale of the Securities as set forth under "Use of
         Proceeds" in the Prospectus or any Integrated Prospectus.

                 (h)      The Company will not, directly or indirectly, without
         the prior written consent of Prudential Securities Incorporated, on
         behalf of the Underwriters, offer, sell, offer to sell, contract to
         sell, pledge, grant any option to purchase or otherwise sell or
         dispose (or announce any offer, sale, offer of sale, contract of sale,
         pledge, grant of any option to purchase or other sale or disposition)
         of any shares of Common Stock or any securities convertible into, or
         exchangeable or exercisable for, shares of Common Stock for a period
         of 90 days after the date hereof, except pursuant to this Agreement
         and except for issuances pursuant to the exercise of warrants
         outstanding on the date hereof and for the grant of options pursuant
         to the Company's employee stock option plans existing on the date
         hereof and the issuance of Common Stock upon the exercise of such
         options and except for issuances of additional shares of Common Stock
         or rights to acquire Common Stock in connection with acquisitions of
         businesses or assets or other business combinations, provided that the
         Company will not grant any demand





                                      -17-
<PAGE>   18
         registration rights covering any shares issued in connection with any
         such acquisition or business combination that are exercisable prior to
         90 days following the date of this Agreement.

                 (i)      The Company will not, directly or indirectly, (i)
         take any action designed to cause or to result in, or that has
         constituted or which might reasonably be expected to constitute, the
         stabilization or manipulation of the price of any security of the
         Company to facilitate the sale or resale of the Securities or (ii) (A)
         sell, bid for, purchase, or pay anyone any compensation for soliciting
         purchases of, the Securities or (B) pay or agree to pay to any person
         any compensation for soliciting another to purchase any other
         securities of the Company (except for the sale of Securities by the
         Selling Securityholders and Additional Selling Securityholders under
         this Agreement and except in connection with acquisitions by the
         Company or its subsidiaries of assets or businesses in the oilfield
         services industry).

                 (j)      The Company will obtain the agreements described in
         Section 9(h) hereof prior to the Firm Closing Date.

                 (k)      If at any time during the 30-day period after the
         Registration Statement becomes effective or the period prior to the
         Option Closing Date, any rumor, publication or event relating to or
         affecting the Company shall occur as a result of which in your opinion
         the market price of the Common Stock has been or is likely to be
         materially affected (regardless of whether such rumor, publication or
         event necessitates a supplement to or amendment of the Prospectus and
         any Integrated Prospectus), the Company will, after notice from you
         advising the Company to the effect set forth above, consult with you
         concerning the necessity and substance of a press release or other
         public statement responding to or commenting on such rumor,
         publication or event.

                 (l)      If the Company elects to rely on Rule 462(b), the
         Company shall file a Rule 462(b) Registration Statement with the
         Commission in compliance with Rule 462(b) and pay the applicable fees
         in accordance with Rule 111 promulgated under the Act.

                 (m)      The Company will use its best efforts to cause the
         Securities to be duly authorized for listing by the American Stock
         Exchange.

         7.      Covenants of Selling Securityholders and Additional Selling
Securityholders.

                 (a)      Each Selling Securityholder and Additional Selling
         Securityholders will not, directly or indirectly, without the prior
         written consent of Prudential Securities Incorporated, offer, sell,
         offer to sell, contract to sell, pledge, grant any option to purchase
         or otherwise sell or dispose (or announce any offer, sale, offer of
         sale, contract of sale, pledge, grant of any option to purchase or
         other sale or disposition) of any Securities legally or beneficially
         owned by such Selling Securityholder or any securities convertible
         into, or exchangeable or exercisable for, Securities for a period of
         90 days





                                      -18-
<PAGE>   19
         after the date hereof except in connection with any transfer of any
         Securities to a related party that agrees to be bound by this
         restriction.

                 (b)      Such Selling Securityholder will not, directly or
         indirectly, (i) take any action designed to cause or result in, or
         that has constituted or which might reasonably be expected to
         constitute, the stabilization or manipulation of the price of any
         security of the Company to facilitate the sale or resale of the
         Securities or (ii) sell, bid for, purchase, or pay anyone any
         compensation for soliciting purchases of, the Securities (except for
         the sale of Securities by the Selling Securityholders under this
         Agreement).

                 (c)      Each Selling Securityholder agrees to deliver to you
         prior to or at the Firm Closing Date a properly completed and executed
         United States Treasury Department Form W-9 (or other applicable form
         or statement specified by Treasury Department regulation in lieu
         thereof).

         8.      Expenses.  The Company will pay all costs and expenses
incident to the performance of its obligations under this Agreement, whether or
not the transactions contemplated herein are consummated or this Agreement is
terminated pursuant to Section 13 hereof, including all costs and expenses
incident to (i) the printing or other production of documents with respect to
the transactions, including any costs of printing the registration statement
originally filed with respect to the Securities and any amendment thereto, any
Rule 462(b) Registration Statement, any Preliminary Prospectus, the Prospectus
and any Integrated Prospectus and any amendment or supplement thereto, this
Agreement and any blue sky memoranda, (ii) all arrangements relating to the
delivery to the Underwriters of copies of the foregoing documents, (iii) the
fees and disbursements of the counsel, accountants and any other experts or
advisors retained by the Company, (iv) preparation, issuance and delivery to
the Underwriters of any certificates evidencing the Securities, including
transfer agent's and registrar's fees, (v) the qualification of the Securities
under state securities and blue sky laws, including filing fees and reasonable
fees and disbursements of counsel for the Underwriters relating thereto, (vi)
the filing fees of the Commission (and the National Association of Securities
Dealers, Inc.) relating to the Securities, (vii) the listing of the Securities
on the American Stock Exchange, (viii) meetings with prospective investors in
the Securities (other than shall have been arranged by the Representatives or
specifically approved by the Representatives to be paid for by the
Underwriters) and (ix) advertising relating to the offering of the Securities
(other than shall have been specifically approved by the Representatives to be
paid for by the Underwriters).  If the sale of the Securities provided for
herein is not consummated because any condition to the obligations of the
Underwriters set forth in Section 9 hereof is not satisfied, because this
Agreement is terminated pursuant to Section 13 hereof or because of any
failure, refusal or inability on the part of the Company to perform all
obligations and satisfy all conditions on its part to be performed or satisfied
hereunder other than by reason of a default by any of the Underwriters, the
Company will reimburse the Underwriters severally upon demand for all out-of-
pocket expenses (including fees and disbursements of counsel) that shall have
been incurred by them in connection with the proposed purchase and sale of the
Securities.  The Company shall not in any event be liable to any of the
Underwriters for the loss of anticipated profits from the transactions covered
by this Agreement.





                                      -19-
<PAGE>   20
         9.      Conditions of the Underwriters' Obligations.  The obligations
of the several Underwriters to purchase and pay for the Firm Securities shall
be subject, in the Representatives' sole discretion, to the accuracy of the
representations and warranties of the Company and each Selling Securityholder
contained herein as of the date hereof and as of the Firm Closing Date, as if
made on and as of the Firm Closing Date, to the accuracy of the statements of
the Company's and each Selling Securityholder's officers made pursuant to the
provisions hereof, to the performance by the Company and each Selling
Securityholder of its covenants and agreements hereunder and to the following
additional conditions:

                 (a)      If the Original Registration Statement or any
         amendment thereto filed prior to the Firm Closing Date has not been
         declared effective as of the time of execution hereof, the Original
         Registration Statement or such amendment and, if the Company has
         elected to rely upon Rule 462(b), the Rule 462(b) Registration
         Statement shall have become effective not later than  the earlier of
         (i) 11:00 A.M., New York time, on the date on which the amendment to
         the registration statement originally filed with respect to the
         Securities or to the Registration Statement, as the case may be,
         containing information regarding the initial public offering price of
         the Securities has been filed with the Commission and (ii) the time
         confirmations are sent or given as specified by Rule 462(b)(2), or
         with respect to the Original Registration Statement, or such later
         time and date as shall have been consented to by the Representatives;
         if required, the Prospectus or any Term Sheet that constitutes a part
         thereof and any Integrated Prospectus and any amendment or supplement
         thereto shall have been filed with the Commission in the manner and
         within the time period required by Rule 434 and 424(b) under the Act;
         no stop order suspending the effectiveness of the Registration
         Statement or any post-effective amendment thereto and no order
         directed at any document incorporated by reference in the Registration
         Statement or the Prospectus or any Integrated Prospectus or any
         amendment or supplement thereto shall have been issued and no
         proceedings for that purpose shall have been instituted or threatened
         or, to the knowledge of the Company or the Representatives, shall be
         contemplated by the Commission; and the Company shall have complied
         with any request of the Commission for additional information (to be
         included in the Registration Statement, or the Prospectus or any
         Integrated Prospectus or otherwise).

                 (b)      The Representatives shall have received an opinion,
         dated the Firm Closing Date, of Fulbright & Jaworski L.L.P., counsel
         for the Company, to the effect that:

                          (i)     the Company and each of its subsidiaries
                 listed in Schedule 3 hereto (the "Subsidiaries") have been
                 duly incorporated and are validly existing as corporations in
                 good standing under the laws of their respective jurisdictions
                 of incorporation;

                          (ii)    the Company and each of the Subsidiaries have
                 corporate power to own or lease their respective properties
                 and conduct their respective businesses as described in the
                 Registration Statement and the Prospectus or any Integrated
                 Prospectus, and the Company has corporate power to enter into
                 this





                                      -20-
<PAGE>   21
                 Agreement and to carry out all the terms and provisions hereof
                 and thereof to be carried out by it;

                          (iii)   the issued shares of capital stock of each of
                 the Subsidiaries have been duly authorized and validly issued,
                 are fully paid and nonassessable and, except as noted in such
                 opinion, to such counsel's knowledge, are owned beneficially
                 by the Company free and clear of any perfected security
                 interest;

                          (iv)    the Company has an authorized, capitalization
                 as set forth in the Prospectus; the Securities, other than the
                 Securities issuable on exercise of the Warrants, have been
                 duly authorized and validly issued and are fully paid and
                 nonassessable; the Firm Securities have been duly authorized
                 by all necessary corporate action of the Company and, when
                 issued and delivered to and paid for by the Underwriters
                 pursuant to this Agreement, will be validly issued, fully paid
                 and nonassessable; the Securities have been duly authorized
                 for listing, subject to official notice of issuance, on the
                 American Exchange; no holders of outstanding shares of capital
                 stock of the Company are entitled as such to any preemptive or
                 other rights to subscribe for any of the Securities under the
                 Delaware General Corporation Law or the Company's Certificate
                 of Incorporation or by-laws; and to such counsel's knowledge,
                 except as disclosed in the Prospectus, no holders of
                 securities of the Company are entitled to have such securities
                 registered under the Registration Statement or to any
                 preemptive or other rights to subscribe for any of the
                 Securities that are contained in any agreements described in
                 clause (viii) (B) of this Section 9(b);

                          (v)     the Common Stock conforms in all material
                 respects to the description thereof set forth under the
                 heading "Description of Capital Stock" in the Prospectus;

                          (vi)    the execution and delivery of this Agreement
                 have been duly authorized by all necessary corporate action of
                 the Company and this Agreement has been duly executed and
                 delivered by the Company;

                          (vii)   to such counsel's knowledge, there are no
                 legal or governmental proceedings pending or threatened to
                 which the Company or any of the Subsidiaries is a party or to
                 which the property of the Company or any of the Subsidiaries
                 is subject that are required to be described in the
                 Registration Statement and any Integrated Prospectus and are
                 not described therein; and, to such counsel's knowledge, no
                 contract or other document is required to be filed as an
                 exhibit to the Registration Statement that is not described
                 therein or filed as required;

                          (viii)  the issuance, offering and sale of the
                 Securities to the Underwriters by the Company pursuant to this
                 Agreement, the compliance by the Company with the other
                 provisions of this Agreement and the consummation of the other
                 transactions herein contemplated do not:  (A) require the
                 consent,





                                      -21-
<PAGE>   22
                 approval, authorization, registration or qualification of or
                 with any governmental authority having jurisdiction over the
                 Company, except such as have been obtained or such as may be
                 required under state securities or blue sky laws; (B) conflict
                 with or result in a breach of the terms and provisions of, or
                 constitute a default under, any indenture, mortgage, deed of
                 trust, lease  or other instrument relating to the borrowing of
                 money known to such counsel to which the Company or any
                 Subsidiary is bound or any other agreement identified to such
                 counsel by the Company as being material to the Company and
                 the Subsidiaries, taken as a whole; or (C) violate the
                 certificate of incorporation or by-laws of the Company or the
                 charter documents or by-laws of any of the Subsidiaries; or
                 (D) violate any statute or judgment, decree, order, rule or
                 regulation of any court or other governmental authority or
                 arbiter known to such counsel to be applicable to the Company
                 or any of the Subsidiaries;

                          (ix)    the Registration Statement has become
                 effective under the Act and, to such counsel's knowledge, and
                 no stop order suspending the effectiveness of the Registration
                 Statement or any post- effective amendment thereto and no
                 order directed at any document incorporated by reference in
                 the Registration Statement, the Prospectus and any Integrated
                 Prospectus or any amendment or supplement thereto has been
                 issued, and, to such counsel's knowledge, no proceedings for
                 that purpose have been instituted or threatened or are
                 contemplated by the Commission; and

                          (x)     the Registration Statement and the Prospectus
                 (excluding the financial statements and other financial or
                 statistical information contained or incorporated by reference
                 therein and any information furnished by the Underwriters, the
                 Selling Securityholders or the Additional Selling
                 Securityholders, as to which such counsel need express no
                 opinion) comply or their face as to form in all material
                 respects with the applicable requirements of the Act and the
                 respective rules and regulations of the Commission thereunder.

Such counsel shall also state that it has participated in conferences with
officers and other representatives of the Company, the Underwriters, the
Selling Securityholders and the Additional Selling Securityholders, counsel to
the Underwriters and representatives of the independent public accountants of
the Company and with your representatives, at which conferences the contents of
the Registration Statement and the Prospectus were discussed.  Although such
counsel need not pass upon and does not assume any responsibility for the
accuracy, completeness or fairness of the statements contained in the
Registration Statement or the Prospectus and need not make any representation
that it has independently verified the accuracy, completeness or fairness of
such statements, such counsel shall state that on the basis of the foregoing
and the information disclosed to it (relying as to materiality to a large
extent upon the officers and other representatives of the Company, the
Underwriters, Selling Securityholders and Additional Selling Securityholders),
(i) no facts came to its attention that lead it to believe that the
Registration Statement, as of the time it was declared effective under the Act,
contained any untrue statement of a material fact or omitted to state a
material fact





                                      -22-
<PAGE>   23
required to be stated therein or necessary in order to make the statements
therein not misleading (it being understood that such counsel need not express
any view with respect to the financial statements, including the notes and
schedules thereto and the auditor's report thereon, or any other information of
a financial, numerical, statistical or accounting nature set forth or referred
to in the Registration Statement or any document incorporated therein by
reference or any exhibits thereto), and (ii) no facts have come to such
counsel's attention that lead it to believe that the Prospectus, as of the time
it was filed with the Commission, contained any untrue statement of a material
fact or omitted to state a material fact required to be stated therein or
necessary in order to make the statements therein, in the light of the
circumstances under which they were made, not misleading (it being understood
that such counsel need not express any view with respect to the financial
statements, including the notes and schedules thereto and the auditor's report
thereon, or any other information or a financial, numerical, statistical or
accounting nature set forth or referred to in the Prospectus or any document
incorporated therein by reference).

                 In rendering any such opinion, such counsel may rely, as to
matters of fact, to the extent such counsel deems proper, on certificates of
responsible officers of the Company and public officials.

                 References to the Registration Statement and the Prospectus in
this paragraph (b) shall include any amendment or supplement thereto at the
date of such opinion.

                 (c)      The Selling Securityholders shall have furnished to
         the Representatives the opinions of one or more counsel, reasonably
         satisfactory to the Representatives, for  the Selling Securityholders,
         dated the Closing Date, to the effect that:

                          (i)     each Selling Securityholder has full
                 corporate and other power to enter into this Agreement, the
                 Custody Agreement and the Power-of-Attorney and to sell,
                 transfer and deliver the Securities being sold by such Selling
                 Securityholder hereunder in the manner provided in this
                 Agreement and to perform its obligations under the Custody
                 Agreement; the execution and delivery of this Agreement, the
                 Custody Agreement and the Power-of-Attorney have been duly
                 authorized by all necessary corporate and other action of each
                 Selling Securityholder; this Agreement, the Custody Agreement
                 and the Power-of-Attorney have been duly executed and
                 delivered by each Selling Securityholder; assuming due
                 authorization, execution and delivery by the Custodian, the
                 Custody Agreement and the Power-of-Attorney are the legal,
                 valid, binding and enforceable instruments of such Selling
                 Securityholder, subject to applicable bankruptcy, insolvency
                 and similar laws affecting creditors' rights generally and
                 subject, as to enforceability, to general principles of equity
                 (regardless of whether enforcement is sought in a proceeding
                 in equity or at law);

                          (ii)    the delivery by each Selling Securityholder
                 to the several Underwriters of certificates for the Securities
                 being sold hereunder by such Selling Securityholder against
                 payment therefor as provided herein, will convey





                                      -23-
<PAGE>   24
                 valid title to such Securities to the several Underwriters,
                 free and clear of all security interests, liens, encumbrances,
                 equities, claims or other defects;

                          (iii)   the sale of the Securities to the
                 Underwriters by such Selling Securityholder pursuant to this
                 Agreement, the compliance by such Selling Securityholder with
                 the other provisions of this Agreement the Custody Agreement
                 and the consummation of the other transactions herein
                 contemplated do not (i) require the consent, approval,
                 authorization, registration or qualification of or with any
                 governmental authority, except such as have been obtained and
                 such as may be required under state securities or blue sky
                 laws, or (ii) conflict with or result in a breach or violation
                 of any of the terms and provisions of the charter documents or
                 by-laws of such Selling Securityholder or any of its
                 subsidiaries or any statute or any judgment, decree, order,
                 rule or regulation of any court or other governmental
                 authority or any arbitrator applicable to such Selling
                 Securityholder or any of its subsidiaries.

                 In rendering such opinion, such counsel may rely, as to
matters of fact, to the extent such counsel deems proper, on certificates of
responsible officers of the Company and public officials.

                 References to the Registration Statement and the Prospectus in
this paragraph (c) shall include any amendment or supplement thereto at the
date of such opinion.

                 (d)      The Representatives shall have received an opinion,
         dated the Firm Closing Date, of Baker & Botts, L.L.P., One Shell
         Plaza, 910 Louisiana, Houston, Texas  77002, counsel for the
         Underwriters, with respect to the issuance and sale of the Firm
         Securities, the Registration Statement, the Prospectus or any
         Integrated Prospectus, and such other related matters as the
         Representatives may reasonably require, and the Company shall have
         furnished to such counsel such documents as they may reasonably
         request for the purpose of enabling them to pass upon such matters.

                 (e)      The Representatives shall have received from Ernst &
         Young LLP a letter or letters dated, respectively, the date hereof and
         the Firm Closing Date, in form and substance satisfactory to the
         Representatives, to the effect that:

                          (i)     they are independent accountants with respect
                 to the Company and its consolidated subsidiaries within the
                 meaning of the Act, and the Exchange Act and the applicable
                 rules and regulations thereunder;

                          (ii)    in their opinion, the audited consolidated
                 financial statements and schedules examined by them and
                 included in the Registration Statement, the Prospectus and any
                 Integrated Prospectus comply in form in all material respects
                 with the applicable accounting requirements of the Act, the
                 Exchange Act and the related published rules and regulations
                 thereunder;





                                      -24-
<PAGE>   25
                          (iii)   on the basis of a reading of the latest
                 available interim unaudited consolidated condensed financial
                 statements of the Company and its consolidated subsidiaries,
                 carrying out certain specified procedures (which do not
                 constitute an examination made in accordance with generally
                 accepted auditing standards) that would not necessarily reveal
                 matters of significance with respect to the comments set forth
                 in this paragraph (iii), a reading of the minute books of the
                 shareholders, the board of directors and any committees
                 thereof of the Company and each of its consolidated
                 subsidiaries, and inquiries of certain officials of the
                 Company and its consolidated subsidiaries who have
                 responsibility for financial and accounting matters, nothing
                 came to their attention that caused them to believe that:

                                  (A)      the unaudited condensed consolidated
                          financial statements of the Company and its
                          consolidated subsidiaries included or incorporated by
                          reference in the Registration Statement, the
                          Prospectus and any Integrated Prospectus do not
                          comply in form in all material respects with the
                          applicable accounting requirements of the Act, the
                          Exchange Act and the related published rules and
                          regulations thereunder, or are not in conformity with
                          generally accepted accounting principles applied on a
                          basis substantially consistent with that of the
                          audited consolidated financial statements included in
                          the Registration Statement, the Prospectus and any
                          Integrated Prospectus; and

                                  (B)      at a specific date not more than
                          five business days prior to the date of such letter,
                          there were any changes in the capital stock or
                          long-term debt of the Company and its consolidated
                          subsidiaries or any decreases in net current assets
                          or stockholders' equity of the Company and its
                          consolidated subsidiaries, in each case compared with
                          amounts shown on the June 30, 1997 unaudited
                          condensed consolidated balance sheet included in the
                          Registration Statement, the Prospectus and any
                          Integrated Prospectus, or for the period from July 1,
                          1997 to such specified date there were any decreases,
                          as compared with the corresponding period in the
                          preceding year and with a period of corresponding
                          length ending on June 30, 1997, in net revenues, net
                          income before income taxes or total or per share
                          amounts of net income of the Company and its
                          consolidated subsidiaries, except in all instances
                          for changes, decreases or increases set forth in such
                          letter;

                          (iv)    they have carried out certain specified
                 procedures, not constituting an audit, with respect to certain
                 amounts, percentages and financial information that are
                 derived from the general accounting records of the Company and
                 its consolidated subsidiaries and are included or incorporated
                 by reference in the Registration Statement, the Prospectus and
                 any Integrated Prospectus and have compared such amounts,
                 percentages and financial information with such records of the
                 Company and its consolidated subsidiaries and with information





                                      -25-
<PAGE>   26
                 derived from such records and have found them to be in
                 agreement, excluding any questions of legal interpretation;
                 and

                          (v)     on the basis of a reading of the unaudited
                 pro forma condensed consolidated financial statements included
                 in the Registration Statement, the Prospectus and any
                 Integrated Prospectus, carrying out certain specified
                 procedures that would not necessarily reveal matters of
                 significance with respect to the comments set forth in this
                 paragraph (v), inquiries of certain officials of the Company
                 and its consolidated subsidiaries who have responsibility for
                 financial and accounting matters and proving the arithmetic
                 accuracy of the application of the pro forma adjustments to
                 the historical amounts in the unaudited pro forma consolidated
                 condensed financial statements, nothing came to their
                 attention that caused them to believe that the unaudited pro
                 forma consolidated condensed financial statements do not
                 comply in form in all material respects with the applicable
                 accounting requirements of Rule 11-02 of Regulation S-X or
                 that the pro forma adjustments have not been properly applied
                 to the historical amounts in the compilation of such
                 statements.

                 In the event that the letters referred to above set forth any
such changes, decreases or increases, it shall be a further condition to the
obligations of the Underwriters that (A) such letters shall be accompanied by a
written explanation of the Company as to the significance thereof, unless the
Representatives deem such explanation unnecessary, and (B) such changes,
decreases or increases do not, in the sole judgment of the Representatives,
make it impractical or inadvisable to proceed with the purchase and delivery of
the Securities as contemplated by the Registration Statement, as amended as of
the date hereof.

                 References to the Registration Statement, the Prospectus and
any Integrated Prospectus in this paragraph (d) with respect to either letter
referred to above shall include any amendment or supplement thereto at the date
of such letter.

                 (f)      The Representatives shall have received from Coopers
         & Lybrand, L.L.P. a letter or letters dated, respectively, the date
         hereof and the Firm Closing Date, in form and substance satisfactory
         to the Representatives, to the effect that:

                          (i)     they are independent accountants with respect
                 to the Company and its consolidated subsidiaries and Quarles
                 Drilling Corporation within the meaning of the Act, and the
                 Exchange Act and the applicable rules and regulations
                 thereunder;

                          (ii)    in their opinion, the financial statements
                 examined by them and included or incorporated by reference in
                 the Registration Statement, the Prospectus and any Integrated
                 Prospectus comply in form in all material respects with the
                 applicable accounting requirements of the Act, the Exchange
                 Act and the related published rules and regulations
                 thereunder;





                                      -26-
<PAGE>   27
                 (g)      The Representatives shall have received a
         certificate, dated the Firm Closing Date, of the principal executive
         officer and the principal financial or accounting officer  of the
         Company to the effect that:

                          (i)     the representations and warranties of the
                 Company in this Agreement are true and correct as if made on
                 and as of the Firm Closing Date; the Registration Statement,
                 as amended as of the Firm Closing Date, does not include any
                 untrue statement of a material fact or omit to state any
                 material fact necessary to make the statements therein not
                 misleading, and the Prospectus and any Integrated Prospectus,
                 as amended or supplemented as of the Firm Closing Date, does
                 not include any untrue statement of a material fact or omit to
                 state any material fact necessary in order to make the
                 statements therein, in the light of the circumstances under
                 which they were made, not misleading; and the Company has
                 performed all covenants and agreements and satisfied all
                 conditions on its part to be performed or satisfied at or
                 prior to the Firm Closing Date;

                          (ii)    no stop order suspending the effectiveness of
                 the Registration Statement or any post- effective amendment
                 thereto and no order directed at any document incorporated by
                 reference in the Registration Statement or the Prospectus or
                 any amendment or supplement thereto has been issued, and no
                 proceedings for that purpose have been instituted or
                 threatened or, to the best of the Company's knowledge, are
                 contemplated by the Commission; and

                          (iii)   subsequent to the respective dates as of
                 which information is given in the Registration Statement, the
                 Prospectus and any Integrated Prospectus, neither the Company
                 nor any of its Subsidiaries has sustained any loss that is
                 material to the Company and its subsidiaries taken as a whole
                 or interference with their respective businesses or properties
                 from fire, flood, hurricane, accident or other calamity,
                 whether or not covered by insurance, or from any labor dispute
                 or any legal or governmental proceeding, and there has not
                 been any material adverse change, or any development involving
                 a prospective material adverse change, in the condition
                 (financial or otherwise), management, business prospects, net
                 worth or results of operations of the Company and its
                 subsidiaries taken as a whole, except in each case as
                 described in or contemplated by the Prospectus and any
                 Integrated Prospectus.

                 (h)      The Representatives shall have received from each
         person who is a director or officer of the Company an agreement to the
         effect that such person will not, directly or indirectly, without the
         prior written consent of Prudential Securities Incorporated, on behalf
         of the Underwriters, offer, sell, offer to sell, contract to sell,
         pledge, grant any option to purchase or otherwise sell or dispose (or
         announce any offer, sale, offer of sale, contract of sale, pledge,
         grant of an option to purchase or other sale or disposition) of any
         shares of Common Stock or any securities convertible into, or
         exchangeable or exercisable for, shares of Common Stock for a period
         of 90





                                      -27-
<PAGE>   28
         days after the date of this Agreement except in connection with any
         transfer of any Securities to a related party that agrees to be bound
         by this restriction.

                 (i)      On or before the Firm Closing Date, the
         Representatives and counsel for the Underwriters shall have received
         such further certificates, documents or other information as they may
         have reasonably requested from the Company.

                 (j)      Prior to the commencement of the offering of the
         Securities, the Securities shall have been approved for listing on the
         Stock Exchange, subject to official notice of issuance.

                 All opinions, certificates, letters and documents delivered
pursuant to this Agreement will comply with the provisions hereof only if they
are reasonably satisfactory in all material respects to the Representatives and
counsel for the Underwriters.  The Company shall furnish to the Representatives
such conformed copies of such opinions, certificates, letters and documents in
such quantities as the Representatives and counsel for the Underwriters shall
reasonably request.

                 The respective obligations of the several Underwriters to
purchase and pay for any Option Securities shall be subject, in their
discretion, to each of the foregoing conditions to purchase the Firm
Securities, except that all references to the Firm Securities and the Firm
Closing Date shall be deemed to refer to such Option Securities and the related
Option Closing Date, respectively.

         10.     Indemnification and Contribution.

         (a)     The Company and, subject to the provisions of Section 10(e),
Drum jointly and severally agree to indemnify and hold harmless each
Underwriter and each person, if any, who controls any Underwriter within the
meaning of Section 15 of the Act or Section 20 of the Exchange Act against any
losses, claims, damages or liabilities, joint or several, to which such
Underwriter or such controlling person may become subject under the Act, the
Exchange Act or otherwise, insofar as such losses, claims, damages or
liabilities (or actions in respect thereof) arise out of or are based upon:

                 (i)      any untrue statement or alleged untrue statement made
         by the Company in Section 2 of this Agreement,

                 (ii)     any untrue statement or alleged untrue statement of
         any material fact contained in (A) the Registration Statement or any
         amendment thereto, any Preliminary Prospectus, the Prospectus and any
         Integrated Prospectus or any amendment or supplement thereto or (B)
         any application or other document, or any amendment or supplement
         thereto, executed by the Company or based upon written information
         furnished by or on behalf of the Company filed in any jurisdiction in
         order to qualify the Securities under the securities or blue sky laws
         thereof or filed with the Commission or any securities association or
         securities exchange (each an "Application");





                                      -28-
<PAGE>   29
                 (iii)    the omission or alleged omission to state in the
         Registration Statement or any amendment thereto, any Preliminary
         Prospectus the Prospectus and any Integrated Prospectus or any
         amendment or supplement thereto, or any Application a material fact
         required to be stated therein or necessary to make the statements
         therein not misleading; or

                 (iv)     any untrue statement or alleged untrue statement of
         any material fact contained in any audio or visual materials used in
         connection with the marketing of the Securities, including without
         limitation, slides, videos, films and tape recordings,

         and will reimburse, as incurred, each Underwriter and each such
controlling person for any legal or other expenses reasonably incurred by such
Underwriter or such controlling person in connection with investigating,
defending against or appearing as a third-party witness in connection with any
such loss, claim, damage, liability or action; provided, however, that the
Company will not be liable in any such case to the extent that any such loss,
claim, damage or liability arises out of or is based upon any untrue statement
or alleged untrue statement or omission or alleged omission made in such
registration statement or any amendment thereto, any Preliminary Prospectus,
the Prospectus or any amendment or supplement thereto, or any Application in
reliance upon and in conformity with written information furnished to the
Company by such Underwriter through the Representatives specifically for use
therein; and provided, further, that the Company will not be liable to any
Underwriter or any person controlling such Underwriter with respect to any such
untrue statement or omission made in any Preliminary Prospectus that is
corrected in the Prospectus (or any amendment or supplement thereto) if the
person asserting any such loss, claim, damage or liability purchased Securities
from such Underwriter but was not sent or given a copy of the Prospectus (as
amended or supplemented), other than the documents incorporated by reference
therein, at or prior to the written confirmation of the sale of such Securities
to such person in any case where such delivery of the Prospectus (as amended or
supplemented) is required by the Act, unless such failure to deliver the
Prospectus (as amended or supplemented) was a result of noncompliance by the
Company with Section 6(d) and (a) of this Agreement.  This indemnity agreement
will be in addition to any liability which the Company may otherwise have.  The
Company will not, without the prior written consent of the Underwriter or
Underwriters purchasing, in the aggregate, more than fifty percent (50%) of the
Securities, settle or compromise or consent to the entry of any judgment in any
pending or threatened claim, action, suit or proceeding in respect of which
indemnification may be sought hereunder (whether or not any such Underwriter or
any person who controls any such Underwriter within the meaning of Section 15
of the Act or Section 20 of the Exchange Act is a party to such claim, action,
suit or proceeding), unless such settlement, compromise or consent includes an
unconditional release of all of the Underwriters and such controlling persons
from all liability arising out of such claim, action, suit or proceeding.

         (b)     Each Selling Securityholder, severally and not jointly, agrees
to indemnify and hold harmless the Company, each of its directors, each of its
officers who signs the Registration Statement or any amendment thereto, each
Underwriter and each person who controls the Company or any Underwriter within
the meaning of Section 15 of the Act or Section 20 of the Exchange Act against
any losses, claims, damages or liabilities, joint or several, to which the





                                      -29-
<PAGE>   30
Company, any such director, officer, such Underwriter or any such controlling
person may become subject under the Act, the Exchange Act or otherwise, insofar
as such losses, claims, damages or liabilities (or actions in respect thereof)
arise out of or are based upon (i) any untrue statement or alleged untrue
statement of any material fact contained in the Registration Statement or any
amendment thereto, any Preliminary Prospectus, the Prospectus or any Integrated
Prospectus or any amendment or supplement thereto, or (ii) the omission or the
alleged omission to state therein a material fact required to be stated in the
Registration Statement or any amendment thereto, any Preliminary Prospectus,
the Prospectus or any Integrated Prospectus or any amendment or supplement
thereto, or necessary to make the statements therein not misleading, in each
case to the extent, but only to the extent, that such untrue statement or
alleged untrue statement or omission or alleged omission was made in reliance
upon and in conformity with the written information furnished to the Company by
such Selling Securityholder for use therein.  Subject to the limitations set
forth in the immediately preceding sentence, each Selling Securityholder,
severally and not jointly, will reimburse, as incurred, any legal or other
expenses reasonably incurred by the Company, any such director, officer, such
Underwriter or any such controlling person in connection with investigating or
defending any such loss, claim, damage, liability or any action in respect
thereof.  This indemnity agreement will be in addition to any liability which
any Selling Securityholder may otherwise have.  Each Selling Securityholder
will not, without the prior written consent of the Underwriter or Underwriters
purchasing, in the aggregate, more than fifty percent (50%) of the Securities,
settle or compromise or consent to the entry of any judgment in any pending or
threatened claim, action, suit or proceeding in respect of which
indemnification may be sought hereunder (whether or not any such Underwriter or
any person who controls any such Underwriter within the meaning of Section 15
of the Act or Section 20 of the Exchange Act is a party to such claim, action,
suit or proceeding), unless such settlement, compromise or consent includes an
unconditional release of all of the Underwriters and such controlling persons
from all liability arising out of such claim, action, suit or proceeding.

         (c)     Each Underwriter, severally and not jointly, will indemnify
and hold harmless the Company, each of its directors, each of its officers who
signed the Registration Statement, each Selling Securityholder and each
Additional Selling Securityholder and each person, if any, who controls the
Company, such Selling Securityholder or such Additional Selling Securityholder
within the meaning of Section 15 of the Act or Section 20 of the Exchange Act
against any losses, claims, damages or liabilities to which the Company or any
such director, officer, Selling Securityholder, Additional Selling
Securityholder or controlling person may become subject under the Act, the
Exchange Act or otherwise, insofar as such losses, claims, damages or
liabilities (or actions in respect thereof) arise out of or are based upon (i)
any untrue statement or alleged untrue statement of any material fact contained
in the Registration Statement or any amendment thereto, any Preliminary
Prospectus, the Prospectus or any Integrated Prospectus or any amendment or
supplement thereto, or any Application or (ii) the omission or the alleged
omission to state therein a material fact required to be stated in the
Registration Statement or any amendment thereto, any Preliminary Prospectus,
the Prospectus or any amendment or supplement thereto, or any Application or
necessary to make the statements therein not misleading, in each case to the
extent, but only to the extent, that such untrue statement or alleged untrue
statement or omission or alleged omission was made in





                                      -30-
<PAGE>   31
reliance upon and in conformity with written information furnished to the
Company by such Underwriter through the Representatives specifically for use
therein; and, subject to the limitation set forth immediately preceding this
clause, will reimburse, as incurred, any legal or other expenses reasonably
incurred by the Company or any such director, officer, Selling Securityholder,
Additional Selling Securityholder or controlling person in connection with
investigating or defending any such loss, claim, damage, liability or any
action in respect thereof.  This indemnity agreement will be in addition to any
liability which such Underwriter may otherwise have.

         (d)     Promptly after receipt by an indemnified party under this
Section 10 of notice of the commencement of any action, such indemnified party
will, if a claim in respect thereof is to be made against the indemnifying
party under this Section 10, notify the indemnifying party of the commencement
thereof; but the omission so to notify the indemnifying party will not relieve
it from any liability which it may have to any indemnified party otherwise than
under this Section 10.  In case any such action is brought against any
indemnified party, and it notifies the indemnifying party of the commencement
thereof, the indemnifying party will be entitled to participate therein and, to
the extent that it may wish, jointly with any other indemnifying party
similarly notified, to assume the defense thereof, with counsel satisfactory to
such indemnified party; provided, however, that if the defendants in any such
action include both the indemnified party and the indemnifying party and the
indemnified party shall have reasonably concluded that there may be one or more
legal defenses available to the indemnified party and/or other indemnified
parties which are different from or additional to those available to the
indemnifying party and would make the representation of all such parties
inappropriate, the indemnifying party shall not have the right to direct the
defense of such action on behalf of such indemnified party or parties and such
indemnified party or parties shall have the right to select separate counsel to
defend such action on behalf of such indemnified party or parties.  After
notice from the indemnifying party to such indemnified party of its election so
to assume the defense thereof and approval by such indemnified party of counsel
appointed to defend such action, the indemnifying party will not be liable to
such indemnified party under this Section 10 for any legal or other expenses,
other than reasonable costs of investigation, subsequently incurred by such
indemnified party in connection with the defense thereof, unless (i) the
indemnified party shall have employed separate counsel in accordance with the
proviso to the next preceding sentence (it being understood, however, that in
connection with such action the indemnifying party shall not be liable for the
expenses of more than one separate counsel (in addition to local counsel) in
any one action or separate but substantially similar actions in the same
jurisdiction arising out of the same general allegations or circumstances,
designated by the Representatives in the case of paragraph (a) of this Section
10, representing the indemnified parties under such paragraph (a) who are
parties to such action or actions) or (ii) the indemnifying party does not
promptly retain counsel satisfactory to the indemnified party or (iii) the
indemnifying party has authorized the employment of counsel for the indemnified
party at the expense of the indemnifying party.  After such notice from the
indemnifying party to such indemnified party, the indemnifying party will not
be liable for the costs and expenses of any settlement of such action effected
by such indemnified party without the consent of the indemnifying party.





                                      -31-
<PAGE>   32
         (e)     The indemnification obligations of Drum pursuant to Section
10(a) are subject to the following provision:  Drum shall not have any
liability under this Agreement in an amount exceeding the amount of cash
received by him upon the sale of his Common Stock.  No Selling Securityholder
or Additional Selling Securityholder, as applicable, shall be liable to the
Underwriters for a breach of the representations in Section 3(f) for (i) in the
event of sales of Common Stock to the Underwriters, an amount exceeding the
amount of cash received by such Selling Securityholder or Additional Selling
Securityholder upon the sale of its Common Stock and (ii) in the event of sales
of Warrants to the Underwriters, an amount exceeding the amount of cash
received by such Additional Selling Securityholder upon the sale of its Warrant
plus the exercise price for such Warrant.

         (f)     In circumstances in which the indemnity agreement provided for
in the preceding paragraphs of this Section 10 is unavailable or insufficient,
for any reason, to hold harmless an indemnified party in respect of any losses,
claims, damages or liabilities (or actions in respect thereof), each
indemnifying party, in order to provide for just and equitable contribution,
shall contribute to the amount paid or payable by such indemnified party as a
result of such losses, claims, damages or liabilities (or actions in respect
thereof) in such proportion as is appropriate to reflect (i) the relative
benefits received by the indemnifying party or parties on the one hand and the
indemnified party or parties on the other from the offering of the Securities
or (ii) if the allocation provided by the foregoing clause (i) is not permitted
by applicable law, not only such relative benefits but also the relative fault
of the indemnifying party or parties on the one hand and the indemnified party
or parties on the other in connection with the statements or omissions or
alleged statements or omissions that resulted in such losses, claims, damages
or liabilities (or actions in respect thereof), as well as any other relevant
equitable considerations.  The relative benefits received by the Company and
the Selling Securityholders on the one hand and the Underwriters on the other
shall be deemed to be in the same proportion as the total proceeds from the
offering (before deducting expenses) received by the Company and the Selling
Securityholders bear to the total underwriting discounts and commissions
received by the Underwriters.  The relative fault of the parties shall be
determined by reference to, among other things, whether the untrue or alleged
untrue statement of a material fact or the omission or alleged omission to
state a material fact relates to information supplied by the Company, the
Selling Securityholders or the Underwriters, the parties' relative intent,
knowledge, access to information and opportunity to correct or prevent such
statement or omission, and any other equitable considerations appropriate in
the circumstances.  The Company, the Selling Securityholders and the
Underwriters agree that it would not be equitable if the amount of such
contribution were determined by pro rata or per capita allocation (even if the
Underwriters were treated as one entity for such purpose) or by any other
method of allocation that does not take into account the equitable
considerations referred to above in this paragraph (d).  Notwithstanding any
other provision of this paragraph (d), no Underwriter shall be obligated to
make contributions hereunder that in the aggregate exceed the total public
offering price of the Securities purchased by such Underwriter under this
Agreement, less the aggregate amount of any damages that such Underwriter has
otherwise been required to pay in respect of the same or any substantially
similar claim, and no person guilty of fraudulent misrepresentation (within the
meaning of Section 11(f) of the Act) shall be entitled to contribution from any
person who was not guilty of such fraudulent misrepresentation.  The
Underwriters' obligations to contribute hereunder are several in





                                      -32-
<PAGE>   33
proportion to their respective underwriting obligations and not joint, and
contributions among Underwriters shall be governed by the provisions of the
Prudential Securities Incorporated Master Agreement Among Underwriters.  For
purposes of this paragraph (d), each person, if any, who controls an
Underwriter within the meaning of Section 15 of the Act or Section 20 of the
Exchange Act shall have the same rights to contribution as such Underwriter,
and each director of the Company, each officer of the Company who signed the
Registration Statement and each person, if any, who controls the Company or any
Selling Securityholder within the meaning of Section 15 of the Act or Section
20 of the Exchange Act, shall have the same rights to contribution as the
Company or such Selling Securityholder, as the case may be.

         11.     Default of Underwriters.  If one or more Underwriters default
in their obligations to purchase Firm Securities or Option Securities hereunder
and the aggregate number of such Securities that such defaulting Underwriter or
Underwriters agreed but failed to purchase is ten percent or less of the
aggregate number of Firm Securities or Option Securities to be purchased by all
of the Underwriters at such time hereunder, the other Underwriters may make
arrangements satisfactory to the Representatives for the purchase of such
Securities by other persons (who may include one or more of the non-defaulting
Underwriters, including the Representatives), but if no such arrangements are
made by the Firm Closing Date or the related Option Closing Date, as the case
may be, the other Underwriters shall be obligated severally in proportion to
their respective commitments hereunder to purchase the Firm Securities or
Option Securities that such defaulting Underwriter or Underwriters agreed but
failed to purchase.  If one or more Underwriters so default with respect to an
aggregate number of Securities that is more than ten percent of the aggregate
number of Firm Securities or Option Securities, as the case may be, to be
purchased by all of the Underwriters at such time hereunder, and if
arrangements satisfactory to the Representatives are not made within 36 hours
after such default for the purchase by other persons (who may include one or
more of the non-defaulting Underwriters, including the Representatives) of the
Securities with respect to which such default occurs, this Agreement will
terminate without liability on the part of any non-defaulting Underwriter or
the Company other than as provided in Section 12 hereof.  In the event of any
default by one or more Underwriters as described in this Section 11, the
Representatives shall have the right to postpone the Firm Closing Date or the
Option Closing Date, as the case may be, established as provided in Section 4
hereof for not more than seven business days in order that any necessary
changes may be made in the arrangements or documents for the purchase and
delivery of the Firm Securities or Option Securities, as the case may be.  As
used in this Agreement, the term "Underwriter" includes any person substituted
for an Underwriter under this Section 11.  Nothing herein shall relieve any
defaulting Underwriter from liability for its default.

         12.     Survival.  The respective representations, warranties,
agreements, covenants, indemnities and other statements of the Company, its
officers, the Selling Securityholders  and the several Underwriters set forth
in this Agreement or made by or on behalf of them, respectively, pursuant to
this Agreement shall remain in full force and effect, regardless of (i) any
investigation made by or on behalf of the Company, any of its officers or
directors,  and Selling Securityholder any Underwriter or any controlling
person referred to in Section 10 hereof and (ii) delivery of and payment for
the Securities.  The respective agreements,





                                      -33-
<PAGE>   34
covenants, indemnities and other statements set forth in Sections 8 and 10
hereof shall remain in full force and effect, regardless of any termination or
cancellation of this Agreement.

         13.     Termination.  (a) This Agreement may be terminated with
respect to the Firm Securities or any Option Securities in the sole discretion
of the Representatives by notice to the Company given prior to the Firm Closing
Date or the related Option Closing Date, respectively, in the event that the
Company or any Selling Securityholder shall have failed, refused or been unable
to perform all obligations and satisfy all conditions on its part to be
performed or satisfied hereunder at or prior thereto or, if at or prior to the
Firm Closing Date or such Option Closing Date, respectively;

                 (i)      the Company or any of its subsidiaries shall have, in
         the sole judgment of the Representatives, sustained any material loss
         or interference with their respective businesses or properties from
         fire, flood, hurricane, accident or other calamity, whether or not
         covered by insurance, or from any labor dispute or any legal or
         governmental proceeding or there shall have been any material adverse
         change, or any development involving a prospective material adverse
         change (including without limitation a change in management or control
         of the Company), in the condition (financial or otherwise), business
         prospects, net worth or results of operations of the Company and its
         subsidiaries, except in each case as described in or contemplated by
         the Prospectus (exclusive of any amendment or supplement thereto);

                 (ii)     trading in the Common Stock shall have been suspended
         by the Commission or the American Stock Exchange or trading in
         securities generally on the New York or American Stock Exchange shall
         have been suspended or minimum or maximum prices shall have been
         established on either any such exchange;

                 (iii)    a banking moratorium shall have been declared by New
         York or United States authorities; or

                 (iv)     there shall have been (A) an outbreak or escalation
         of hostilities between the United States and any foreign power, (B) an
         outbreak or escalation of any other insurrection or armed conflict
         involving the United States or (C) any other calamity or crisis or
         material adverse change in general economic, political or financial
         conditions having an effect on the U. S. financial markets that, in
         the sole judgment of the Representatives, makes it impractical or
         inadvisable to proceed with the public offering or the delivery of the
         Securities as contemplated by the Registration Statement, as amended
         as of the date hereof.

         (b)     Termination of this Agreement pursuant to this Section 13
shall be without liability of any party to any other party except as provided
in Section 12 hereof.

         14.     Information Supplied by Underwriters.  The statements set
forth in the last paragraph on the front cover page and under the heading
"Underwriting" in any Preliminary Prospectus, the Prospectus or any Integrated
Prospectus (to the extent such statements relate to the Underwriters)
constitute the only information furnished by any Underwriter through the





                                      -34-
<PAGE>   35
Representatives to the Company for the purposes of Sections 2(b) and 10 hereof.
The Underwriters confirm that such statements (to such extent) are correct.

         15.     Notices.  All communications hereunder shall be in writing
and, if sent to any of the Underwriters, shall be delivered or sent by mail,
telex or facsimile transmission and confirmed in writing to Prudential
Securities Incorporated, One New York Plaza, New York, New York 10292,
Attention: Equity Transactions Group, (facsimile:  (212) 778-4312); and if sent
to the Company, shall be delivered or sent by mail, telex or facsimile
transmission and confirmed in writing to the Company at 16800 Greenspoint Park,
Suite 225N, Houston, Texas  77060, (facsimile:  (281) 873-4141); and if to the
Selling Securityholders, shall be delivered or sent by mail, telex or facsimile
transmission and confirmed in writing to the Selling Securityholders c/o Vaughn
E. Drum at 16800 Greenspoint Park, Suite 225N, Houston, TX  77630, (facsimile:
(281) 873-4141).

         16.     Successors.  This Agreement shall inure to the benefit of and
shall be binding upon the several Underwriters, the Company, the Selling
Securityholders the Additional Selling Securityholders and their respective
successors and legal representatives, and nothing expressed or mentioned in
this Agreement is intended or shall be construed to give any other person any
legal or equitable right, remedy or claim under or in respect of this
Agreement, or any provisions herein contained, this Agreement and all
conditions and provisions hereof being intended to be and being for the sole
and exclusive benefit of such persons and for the benefit of no other person
except that (i) the indemnities of the Company contained in Section 10 of this
Agreement shall also be for the benefit of any person or persons who control
any Underwriter within the meaning of Section 15 of the Act or Section 20 of
the Exchange Act and (ii) the indemnities of the Underwriters contained in
Section 8 of this Agreement shall also be for the benefit of the Selling
Securityholders, the Additional Selling Securityholders, directors of the
Company, the officers of the Company who have signed the Registration Statement
and any person or persons who control the Company within the meaning of Section
15 of the Act or Section 20 of the Exchange Act.  No purchaser of Securities
from any Underwriter shall be deemed a successor because of such purchase.

         17.     APPLICABLE LAW.  THE VALIDITY AND INTERPRETATION OF THIS
AGREEMENT, AND THE TERMS AND CONDITIONS SET FORTH HEREIN, SHALL BE GOVERNED BY
AND CONSTRUED IN ACCORDANCE WITH THE LAWS OF THE STATE OF NEW YORK, WITHOUT
GIVING EFFECT TO ANY PROVISIONS RELATING TO CONFLICTS OF LAWS.

         18.     Consent to Jurisdiction and Service of Process.  All judicial
proceedings arising out of or relating to this Agreement may be brought in any
state or federal court of competent jurisdiction in the State of New York, and
by execution and delivery of this Agreement, each Selling Securityholder
accepts for itself and in connection with its properties, generally and
unconditionally, the nonexclusive jurisdiction of the aforesaid courts and
waives any defense of forum non conveniens and irrevocably agrees to be bound
by any judgment rendered thereby in connection with this Agreement.  Each
Selling Securityholder designates and appoints Vaughn E. Drum and such other
persons as may hereafter be selected by each Selling Securityholder irrevocable
agreeing in writing to so serve, as its agent to receive on its behalf





                                      -35-
<PAGE>   36
service of all process in any such proceedings in any such court, such service
being hereby acknowledged by the Selling Shareholder to be effective and
binding service in every respect.  A copy of any such process so served shall
be mailed by registered mail to the Selling Securityholder at its address
provided in Section 15 hereof; provided, however, that, unless otherwise
provided by applicable law, any failure to mail such copy shall not affect the
validity of service of such process.  If any agent appointed by a Selling
Shareholder refuses to accept service, such Selling Securityholder hereby
agrees that service of process sufficient for personal jurisdiction in any
action against each Selling Securityholder in the State of New York may be made
by registered or certified mail, return receipt requested, to the Selling
Shareholder at its address provided in Section 15 hereof, and each Selling
Securityholder hereby acknowledges that such service shall be effective and
binding in every respect.  Nothing herein shall affect the right to serve
process in any other manner permitted by law or shall limit the right of any
Underwriter to bring proceedings against the Selling Securityholder in the
courts of any other jurisdiction.

         19.     Counterparts.  This Agreement may be executed in two or more
counterparts, each of which shall be deemed an original, but all of which
together shall constitute one and the same instrument.





                                      -36-
<PAGE>   37
                 If the foregoing correctly sets forth our understanding,
please indicate your acceptance thereof in the space provided below for that
purpose, whereupon this letter shall constitute an agreement binding the
Company and each of the several Underwriters.

                                  Very truly yours,
                                  
                                  UTI ENERGY CORP.
                                  
                                  
                                  
                                  By /s/ MARK S. SIEGEL 
                                     ----------------------------------------
                                       Name: Mark S. Siegel                
                                       Title: President       
                                                                             
                                  SELLING SECURITYHOLDERS                    
                                                                             
                                                                             
                                                                             
                                  By /s/ MARK S. SIEGEL                
                                     ----------------------------------------
                                       Name: Mark S. Siegel                    
                                       Attorney-in-Fact for                  
                                            Selling Securityholders          


The foregoing Agreement is hereby
confirmed and accepted as of the
date first above written.

PRUDENTIAL SECURITIES INCORPORATED
LEHMAN BROTHERS INC.
RAUSCHER PIERCE REFSNES, INC.
SIMMONS & COMPANY INTERNATIONAL

By PRUDENTIAL SECURITIES INCORPORATED


By /s/ JEAN-CLAUDE CANFIN
   --------------------------------------
     Jean-Claude Canfin
     Managing Director

For itself and on behalf of the Representatives.





                                      -37-
<PAGE>   38
                                  SCHEDULE 1-A

                            SELLING SECURITYHOLDERS



<TABLE>
<CAPTION>
                                                                      Number of
                                                                   Firm Securities
Selling Securityholders:                                              to be Sold
                                                                      ----------
<S>                                                                    <C>
Remy Capital Partners III, L.P. . . . . . . . . . . . . . . . . .      1,772,888
Remy Investors and Consultants, Incorporated  . . . . . . . . . .             --
Quarles Drilling Corporation  . . . . . . . . . . . . . . . . . .        733,779
Shamrock Holdings of California, Inc. . . . . . . . . . . . . . .        533,333
Sam K. Viersen Family Foundation, Inc.  . . . . . . . . . . . . .        200,000
The Sam K. Viersen Trust dated September 9, 1986,                 
    as Amended and Restated on May 11, 1994 . . . . . . . . . . .        400,000
Canpartners Investments IV, L.L.C.  . . . . . . . . . . . . . . .        720,000
Four Flags Drilling Company . . . . . . . . . . . . . . . . . . .         60,000
Neil E. Hanson  . . . . . . . . . . . . . . . . . . . . . . . . .         31,800
Chris N. Hanson . . . . . . . . . . . . . . . . . . . . . . . . .         30,000
Kurt M. Hanson  . . . . . . . . . . . . . . . . . . . . . . . . .         14,400
Erik G. Hanson  . . . . . . . . . . . . . . . . . . . . . . . . .         28,800
Kenneth N. Berns  . . . . . . . . . . . . . . . . . . . . . . . .             --
Vaughn E. Drum  . . . . . . . . . . . . . . . . . . . . . . . . .      ---------
                                                                       4,525,000
                                                                       =========
</TABLE>





                                      S-11
<PAGE>   39
                                  SCHEDULE 1-B

                       ADDITIONAL SELLING SECURITYHOLDERS


<TABLE>
<CAPTION>
                                                                  Number of Option
                                                                  Securities to be
                                                                  sold if Maximum
Additional Selling Securityholders:                               Option Exercised
                                                                  ----------------
<S>                                                                   <C>
Remy Capital Partners III, L.P. . . . . . . . . . . . . . . . . .     192,775
Remy Investors and Consultants, Incorporated  . . . . . . . . . .     165,000
Kenneth N. Berns  . . . . . . . . . . . . . . . . . . . . . . . .      30,000
Vaughn E. Drum  . . . . . . . . . . . . . . . . . . . . . . . . .     112,500
                                                                      -------
                                                                      500,175
                                                                      =======
</TABLE>





                                      S-12
<PAGE>   40
                                   SCHEDULE 2

                                  UNDERWRITERS

<TABLE>
<CAPTION>
                                                                                         Number of Firm
                                                                                          Securities to
Underwriter                                                                               be Purchased 
- -----------                                                                               -------------
<S>                                                                                         <C>
Prudential Securities Incorporated  . . . . . . . . . . . . . . . . . . . . . . . . . . .      804,250
Lehman Brothers Inc.  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .      804,250
Rauscher Pierce Refsnes, Inc. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .      804,250
Simmons & Company International . . . . . . . . . . . . . . . . . . . . . . . . . . . . .      804,250
Bear, Stearns & Co. Inc.  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .      124,000
BT Alex Brown Incorporated  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .      124,000
Credit Suisse First Boston Corporation  . . . . . . . . . . . . . . . . . . . . . . . . .      124,000
Donaldson, Lufkin & Jenrette Securities Corporation . . . . . . . . . . . . . . . . . . .      124,000
Goldman, Sachs & Co.  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .      124,000
Howard, Weil, Labouisse, Friedrichs Incorporated  . . . . . . . . . . . . . . . . . . . .      124,000
Jefferies & Company, Inc. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .      124,000
Lazard Freres & Co. LLC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .      124,000
Merrill Lynch, Pierce, Fenner & Smith Incorporated  . . . . . . . . . . . . . . . . . . .      124,000
J P Morgan Securities Inc.  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .      124,000
Morgan Stanley & Co. Incorporated . . . . . . . . . . . . . . . . . . . . . . . . . . . .      124,000
Oppenheimer & Co., Inc. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .      124,000
PaineWebber Incorporated  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .      124,000
Salomon Brothers Inc  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .      124,000
SBC Warburg Dillon Read Inc.  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .      124,000
Schroder & Co. Inc. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .      124,000
Smith Barney Inc. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .      124,000
Advest, Inc.  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .       62,000
Crowell, Weedon & Co. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .       62,000
Janney Montgomery Scott Inc.  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .       62,000
McDonald & Company Securities, Inc. . . . . . . . . . . . . . . . . . . . . . . . . . . .       62,000
Morgan Keegan & Company, Inc. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .       62,000
Petrie Parkman & Co.  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .       62,000
Principal Financial Securities, Inc.  . . . . . . . . . . . . . . . . . . . . . . . . . .       62,000
Sutro & Co. Incorporated  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .       62,000
Tucker Anthony Incorporated . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .       62,000
George K. Baum & Company  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .       31,000
Brean Murray & Co., Inc.  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .       31,000
First Southwest Company . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .       31,000
Hoak Breedlove Wesneski & Co, . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .       31,000
Johnson Rice & Company L.L.C. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .       31,000
Pennsylvania Merchant Group Ltd . . . . . . . . . . . . . . . . . . . . . . . . . . . . .       31,000
Southcoast Capital Corporation  . . . . . . . . . . . . . . . . . . . . . . . . . . . . .       31,000
                                                                                             ---------
          Total  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .       6,100,000
                                                                                             =========
</TABLE>





                                      S-2
<PAGE>   41
                                   SCHEDULE 3

                                  SUBSIDIARIES


<TABLE>
<CAPTION>
Name                                                                         Jurisdiction of Incorporation
- ----                                                                         -----------------------------
<S>                                                                                  <C>
UTICO, Inc.                                                                          Delaware
Triad Drilling Company                                                               Delaware
FWA Drilling Company, Inc.                                                           Delaware
International Petroleum Service Company                                              Pennsylvania
Universal Well Services, Inc.                                                        Delaware
J.S.M. & Associates, Inc.                                                            Texas
</TABLE>





                                      S-3


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