DIAMOND OFFSHORE DRILLING INC
10-Q, 1997-07-29
DRILLING OIL & GAS WELLS
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<PAGE>   1



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

                                   FORM 10-Q

(Mark One)
    [X]         QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d)
                     OF THE SECURITIES EXCHANGE ACT OF 1934
                  For the quarterly period ended June 30, 1997

                                       OR

    [ ]        TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d)
                     OF THE SECURITIES EXCHANGE ACT OF 1934

    For the transition period from ................. to ...................

                         Commission file number 1-13926


                        DIAMOND OFFSHORE DRILLING, INC.
             (Exact name of registrant as specified in its charter)

                Delaware                                        76-0321760
(State or other jurisdiction of incorporation              (I.R.S. Employer
            or organization)                             Identification No.)

                               15415 Katy Freeway
                                 Houston, Texas
                                     77094
                    (Address of principal executive offices)
                                   (Zip Code)

                                 (281) 492-5300
              (Registrant's telephone number, including area code)


         Indicate by check mark whether the registrant (1) has filed all
reports required to be filed by Section 13 or 15(d) of the Securities Exchange
Act of 1934 during the preceding 12 months (or for such shorter period that the
registrant was required to file such reports), and (2) has been subject to such
filing requirements for the past 90 days. Yes [X] No [ ]


         Indicate the number of shares outstanding of each of the issuer's
classes of common stock, as of the latest practicable date.

As of July 18, 1997   Common stock, $.01 par value per share   69,649,474 shares


<PAGE>   2

                        DIAMOND OFFSHORE DRILLING, INC.

                        TABLE OF CONTENTS FOR FORM 10-Q

                          QUARTER ENDED JUNE 30, 1997

<TABLE>
<CAPTION>

                                                                                              PAGE NO.
<S>                                                                                             <C>
COVER PAGE.......................................................................................1

DOCUMENT TABLE OF CONTENTS.......................................................................2

PART I.  FINANCIAL INFORMATION...................................................................3

         ITEM 1.  FINANCIAL STATEMENTS
                   Consolidated Balance Sheets...................................................3
                   Consolidated Statements of Income.............................................4
                   Consolidated Statements of Cash Flows.........................................5
                   Notes to Consolidated Financial Statements....................................6

         ITEM 2.  MANAGEMENT'S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION
                   AND RESULTS OF OPERATIONS.....................................................12

PART II.  OTHER INFORMATION......................................................................20

         ITEM 1.  LEGAL PROCEEDINGS..............................................................20

         ITEM 2.  CHANGES IN SECURITIES..........................................................20

         ITEM 3.  DEFAULTS UPON SENIOR SECURITIES................................................20

         ITEM 4.  SUBMISSION OF MATTERS TO A VOTE OF SECURITY HOLDERS............................20

         ITEM 5.  OTHER INFORMATION..............................................................21

         ITEM 6.  EXHIBITS AND REPORTS ON FORM 8-K...............................................21

SIGNATURES.......................................................................................22

INDEX OF EXHIBITS................................................................................23

</TABLE>


                                       2

<PAGE>   3


                         PART I. FINANCIAL INFORMATION

ITEM 1.  FINANCIAL STATEMENTS.

                DIAMOND OFFSHORE DRILLING, INC. AND SUBSIDIARIES

                          CONSOLIDATED BALANCE SHEETS
                (In thousands, except share and per share data)
                                                  
<TABLE>
<CAPTION>
                                                                                       JUNE 30,     DECEMBER 31,
                                                                                     -----------    -----------
                                                                                         1997           1996
                                                                                     -----------    -----------
                                     ASSETS                                          (Unaudited)
<S>                                                                                          <C>            <C>
CURRENT ASSETS:
     Cash and cash equivalents...................................................$        41,145    $    28,180
     Investment securities........................................................       196,624             --
     Accounts receivable .........................................................       197,092        172,214
     Rig inventory and supplies ..................................................        31,282         30,407
     Prepaid expenses and other ..................................................        15,985         12,166
                                                                                     -----------    -----------
               Total current assets  .............................................       482,128        242,967
DRILLING AND OTHER PROPERTY AND EQUIPMENT, LESS
     ACCUMULATED DEPRECIATION ....................................................     1,383,393      1,198,160
GOODWILL, NET OF AMORTIZATION ....................................................       124,349        129,825
LONG-TERM INVESTMENT SECURITIES ..................................................       124,525             --
OTHER ASSETS .....................................................................        10,269          3,548
                                                                                     -----------    -----------
               Total assets ......................................................   $ 2,124,664    $ 1,574,500
                                                                                     ===========    ===========

                      LIABILITIES AND STOCKHOLDERS' EQUITY
CURRENT LIABILITIES:
     Accounts payable............................................................$        61,820    $    63,172
     Accrued liabilities .........................................................        40,871         28,451
     Taxes payable ...............................................................        12,981         26,377
     Short-term borrowings .......................................................            --         10,000
                                                                                     -----------    -----------
               Total current liabilities  ........................................       115,672        128,000

LONG-TERM DEBT ...................................................................       400,000         63,000
DEFERRED TAX LIABILITY ...........................................................       191,325        176,296
OTHER LIABILITIES ................................................................        18,597         12,472
                                                                                     -----------    -----------
               Total liabilities .................................................       725,594        379,768
                                                                                     -----------    -----------
COMMITMENTS AND CONTINGENCIES
STOCKHOLDERS' EQUITY:
     Preferred stock (par value $.01, 25,000,000 shares authorized, none issued
         and outstanding) ........................................................            --             --
     Common stock (par value $.01, 200,000,000 shares authorized, 69,649,474
         and 68,353,409 shares issued and outstanding at June 30, 1997 and
         December 31, 1996, respectively) ........................................           696            684
     Additional paid-in capital ..................................................     1,302,668      1,220,032
     Retained earnings (accumulated deficit) .....................................        96,408        (25,056)
     Cumulative translation adjustment ...........................................        (1,197)          (928)
     Unrealized gain on investment securities ....................................           495             --
                                                                                     -----------    -----------
               Total stockholders' equity ........................................     1,399,070      1,194,732
                                                                                     -----------    -----------
               Total liabilities and stockholders' equity ........................   $ 2,124,664    $ 1,574,500
                                                                                     ===========    ===========
</TABLE>

               The accompanying notes are an integral part of the
                       consolidated financial statements.


                                       3
<PAGE>   4

                DIAMOND OFFSHORE DRILLING, INC. AND SUBSIDIARIES

                       CONSOLIDATED STATEMENTS OF INCOME
                                  (Unaudited)
                     (In thousands, except per share data)


<TABLE>
<CAPTION>
                                                              THREE MONTHS ENDED         SIX MONTHS ENDED
                                                                   JUNE 30,                  JUNE 30,
                                                        ---------------------------  -----------------------
                                                           1997           1996          1997         1996
                                                        ------------  -------------  ---------    ----------
<S>                                                        <C>          <C>          <C>          <C>       
Revenues ...............................................   $ 228,534    $ 146,983    $ 433,267    $ 253,851
                                                        
Operating expenses:                                     
     Contract drilling .................................      98,221       81,597      187,960      147,754
     Depreciation and amortization .....................      27,230       18,396       53,042       30,465
     General and administrative ........................       4,859        3,449        9,800        6,552
     Gain on sale of assets ............................          (5)      (3,073)         (70)      (3,230)
                                                           ---------    ---------    ---------    ---------
Total operating expenses ...............................     130,305      100,369      250,732      181,541
                                                           ---------    ---------    ---------    ---------
                                                        
Operating income .......................................      98,229       46,614      182,535       72,310
                                                        
Other income (expense):                                 
     Interest income ...................................       5,499          222        8,392          478
     Interest expense ..................................      (3,349)        (104)      (3,349)        (104)
     Other, net ........................................          10           52         (175)         230
                                                           ---------    ---------    ---------    ---------
Income before income tax expense .......................     100,389       46,784      187,403       72,914
                                                        
Income tax expense .....................................     (35,155)     (13,762)     (65,939)     (21,160)
                                                           ---------    ---------    ---------    ---------
                                                        
Net income .............................................   $  65,234    $  33,022    $ 121,464    $  51,754
                                                           =========    =========    =========    =========
                                                        
Net income per common and common                        
   equivalent share ....................................   $    0.91    $    0.53    $    1.70    $    0.92
                                                           =========    =========    =========    =========
                                                        
Weighted average shares outstanding:                    
     Common shares .....................................      69,413       62,166       68,901       56,083
     Common equivalent shares ..........................       4,938           --        3,983           --
                                                           ---------    ---------    ---------    ---------
                                                        
     Adjusted ..........................................      74,351       62,166       72,884       56,083
                                                           =========    =========    =========    =========

</TABLE>
                                                        
               The accompanying notes are an integral part of the
                       consolidated financial statements.



                                       4
<PAGE>   5

                DIAMOND OFFSHORE DRILLING, INC. AND SUBSIDIARIES

                     CONSOLIDATED STATEMENTS OF CASH FLOWS
                                  (Unaudited)
                                 (In thousands)
                                                                        
<TABLE>
<CAPTION>                                                                       
                                                                    SIX MONTHS ENDED
                                                                         JUNE 30,
                                                                 -----------------------
                                                                    1997          1996
                                                                 ----------   ----------
<S>                                                              <C>          <C>
OPERATING ACTIVITIES:
      Net income .............................................   $ 121,464    $  51,754
      Adjustments to reconcile net income to net cash provided
        by operating activities:
        Depreciation and amortization ........................      53,042       30,465
        Gain on sale of assets ...............................         (70)      (3,230)
        Gain on sale of investment securities ................         (10)          --
        Deferred tax provision ...............................      20,638       18,774
        Accretion of discounts on investment securities ......      (5,318)        (139)
        Amortization of debt issuance costs ..................         201          160
      Changes in operating assets and liabilities:
        Accounts receivable ..................................     (24,462)     (35,974)
        Rig inventory and supplies and other current assets ..      (4,694)      (3,344)
        Other assets, non-current ............................         357       (1,435)
        Accounts payable and accrued liabilities .............      10,979        9,101
        Taxes payable ........................................     (15,779)         879
        Other liabilities, non-current .......................       3,018        1,167
      Other, net .............................................         290          (80)
                                                                 ---------    ---------
            Net cash provided by operating activities ........     159,656       68,098
                                                                 ---------    ---------

INVESTING ACTIVITIES:
      Cash acquired in Arethusa merger .......................          --       20,883
      Capital expenditures ...................................    (156,002)    (100,463)
      Purchase of accommodation vessel .......................     (80,776)          --
      Proceeds from sales of assets ..........................       1,888        4,842
      Net purchases of short-term investment securities ......    (306,234)          --
      Purchases of long-term investment securities ...........    (124,242)          --
      Proceeds from maturities of investment securities ......     115,000           --
                                                                 ---------    ---------
            Net cash used in investing activities ............    (550,366)     (74,738)
                                                                 ---------    ---------

FINANCING ACTIVITIES:
      Issuance of common stock ...............................      82,282           --
      Net (repayments) borrowings on revolving line of credit      (63,000)      70,000
      Net repayments on short-term borrowings ................     (10,000)          --
      Issuance of convertible subordinated notes .............     400,000           --
      Repayment of debt assumed in Arethusa merger ...........          --      (67,477)
      Debt issuance costs ....................................      (6,062)      (2,033)
      Proceeds from stock options exercised ..................         455        4,187
                                                                 ---------    ---------
            Net cash provided by financing activities ........     403,675        4,677
                                                                 ---------    ---------

NET CHANGE IN CASH AND CASH EQUIVALENTS ......................      12,965       (1,963)
      Cash and cash equivalents, beginning of period .........      28,180       10,306
                                                                 ---------    ---------
      Cash and cash equivalents, end of period ...............   $  41,145    $   8,343
                                                                 =========    =========
</TABLE>

               The accompanying notes are an integral part of the
                       consolidated financial statements.


                                       5

<PAGE>   6

                DIAMOND OFFSHORE DRILLING, INC. AND SUBSIDIARIES

                   NOTES TO CONSOLIDATED FINANCIAL STATEMENTS


1.  GENERAL

     The consolidated financial statements of Diamond Offshore Drilling, Inc.
and subsidiaries (the "Company") should be read in conjunction with the Annual
Report on Form 10-K for the year ended December 31, 1996 (File No. 1-13926).

Interim Financial Information

     The accompanying consolidated financial statements have been prepared in
accordance with generally accepted accounting principles for interim financial
information and with the instructions to Form 10-Q and Article 10 of Regulation
S-X. Accordingly, they do not include all disclosures required by generally
accepted accounting principles for complete financial statements. The
consolidated financial information has not been audited but, in the opinion of
management, includes all adjustments (consisting only of normal recurring
accruals) necessary for a fair presentation of the consolidated balance sheets,
statements of income, and statements of cash flows at the dates and for the
periods indicated. Results of operations for interim periods are not
necessarily indicative of results of operations for the respective full years.

Cash and Cash Equivalents

     Short-term, highly liquid investments that have an original maturity of
three months or less which are considered part of the Company's cash management
activities, rather than part of its investing activities, are considered cash
equivalents.

Investment Securities

     The Company's investments are classified as available for sale and stated
at fair value under the terms of Statement of Financial Accounting Standards
("SFAS") No. 115, "Accounting for Certain Investments in Debt and Equity
Securities." Accordingly, any unrealized gains and losses, net of taxes, are
recorded as a separate component of stockholders' equity until realized. The
cost of debt securities is adjusted for accretion of discounts to maturity and
such accretion is included in interest income. The cost of securities sold is
based on the specific identification method and realized gains or losses and
declines in value, if any, judged to be other than temporary are reported in
the Consolidated Statements of Income in "Other income (expense)."

Supplementary Cash Flow Information

     Non-cash financing activities for the six months ended June 30, 1996
included $550.7 million for the issuance of 17.9 million shares of common stock
and the assumption of 0.5 million stock options in connection with the merger
between the Company and Arethusa (Off-Shore) Limited ("Arethusa"). Non-cash
investing activities for the six months ended June 30, 1996 included $532.9
million of net assets acquired in the merger with Arethusa (see Note 2).

     Cash payments made for interest on long-term debt, including commitment
fees, during the six months ended June 30, 1997 and 1996 totaled $0.6 million
and $1.7 million, respectively. Cash payments made for income taxes during the
six months ended June 30, 1997 and 1996 totaled $60.2 million and $1.9 million,
respectively.


                                       6
<PAGE>   7
Capitalized Interest

     Interest costs for construction and upgrade of qualifying assets are
capitalized. During the quarter and six months ended June 30, 1997, the Company
incurred interest costs of $4.0 million and $6.8 million, respectively.
Interest costs capitalized during the quarter and the six months ended June 30,
1997 were $0.7 million and $3.5 million, respectively. Total interest costs
incurred of $1.0 million and $1.3 million was capitalized during the quarter
and six months ended June 30, 1996, respectively.

Goodwill

     Goodwill from the merger with Arethusa is amortized on a straight-line
basis over 20 years. Amortization expense totaled $1.7 million and $3.3 million
for the quarter and six months ended June 30, 1997, respectively. For the
quarter and six months ended June 30, 1996, amortization expense totaled $0.7
million.

Debt Issuance Costs

     Debt issuance costs are included in the Consolidated Balance Sheets in
"Other assets" and are amortized over the term of the related debt.

Income Tax Expense

     Except for selective dividends, the Company's practice has been to
reinvest the earnings of its non-U.S. subsidiaries and postpone their
remittance indefinitely. Thus, no additional U.S. taxes were provided on
earnings of these non-U.S. subsidiaries. However, beginning in 1997, the
Company changed its practice and now intends to repatriate these earnings in
the foreseeable future. As a result, beginning January 1, 1997, the Company has
provided U.S. taxes on all undistributed non-U.S. earnings. The disparity in
the effective tax rates between 1997 and 1996 reflects this change in practice.

Net Income Per Share

     Net income per common and common equivalent share was computed by dividing
net income by the weighted average number of shares of common stock and common
stock equivalents outstanding during the periods. The convertible subordinated
notes (see Note 7) are considered to be common stock equivalents. Consequently,
the number of shares issuable assuming full conversion of these notes as of the
issuance date, February 4, 1997, was added to the number of common shares
outstanding with net income also adjusted to eliminate the after-tax effect of
interest expense on these notes. Fully diluted earnings per share is not
presented as there are no other contingent issuances of common stock.

     The per share amounts presented do not reflect the effect of the
two-for-one stock split in the form of a stock dividend to stockholders of
record on July 24, 1997 (see Note 10). On a post-split basis, net income per
common and common equivalent share will be restated to $0.45 and $0.85 for the
quarter and six months ended June 30, 1997, respectively, as compared to $0.27
and $0.46 for the quarter and six months ended June 30, 1996, respectively.

     In February 1997, the Financial Accounting Standards Board issued SFAS 
No. 128, "Earnings per Share," which requires dual presentation of basic and
diluted earnings per share for entities with complex capital structures. Basic
earnings per share excludes dilution and is computed by dividing net income by
the weighted average number of common shares outstanding for the period. Diluted
earnings per share reflects the potential dilution that could occur if
securities or other contracts to issue common stock were exercised or converted
into common stock. SFAS No. 128 is effective for financial statements for both
interim and annual periods ending after December 15, 1997. The Company plans to
adopt SFAS No. 128 for the fourth quarter of 1997 and, after the effective date,
all prior period earnings per share data presented will be restated to conform
to these provisions. For the three months ended June 30, 1997 and 1996, pro
forma earnings per share amounts computed using SFAS No. 128 would have been
$0.94 and $0.53, respectively, for basic earnings per share and $0.91 and $0.53,
respectively, for diluted earnings per share. Pro forma earnings per share
amounts for the six months ended June 30, 1997 and


                                       7
<PAGE>   8
1996 would have been $1.76 and $0.92, respectively, for basic earnings
per share and $1.70 and $0.92, respectively, for diluted earnings per share.

     On a post-split basis (see Note 10), pro forma earnings per share amounts
for the three months ended June 30, 1997 and 1996 computed using SFAS No. 128
would have been $0.47 and $0.27, respectively, for basic earnings per share and
$0.45 and $0.27, respectively, for diluted earnings per share. Pro forma
earnings per share amounts on a post-split basis for the six months ended June
30, 1997 and 1996 would have been $0.88 and $0.46, respectively, for basic
earnings per share and $0.85 and $0.46, respectively, for diluted earnings per
share.

Use of Estimates in the Preparation of Financial Statements

     The preparation of financial statements in conformity with generally
accepted accounting principles requires management to make estimates and
assumptions that affect the reported amounts of assets and liabilities and
disclosure of contingent assets and liabilities at the date of the financial
statements and the reported amount of revenues and expenses during the
reporting period. Actual results could differ from those estimated.

Reclassifications

     Certain amounts applicable to the prior periods have been reclassified to
conform to the classifications currently followed. Such reclassifications do
not affect earnings.

2.  MERGER WITH ARETHUSA

     In April 1996, the Company acquired 100 percent of the stock of Arethusa
(the "Arethusa Merger") in exchange for approximately 17.9 million shares of
the Company's common stock. The shares were valued for financial reporting
purposes at $30.14 per share based on a seven-day average of the closing price
of the Company's common stock at the time the Arethusa Merger was announced
(December 7, 1995). In addition to equity consideration of approximately $550.7
million, the Company incurred approximately $16.9 million of cash acquisition
costs associated with the Arethusa Merger.

     The Arethusa Merger was accounted for as a purchase and, accordingly, the
accompanying Consolidated Statements of Income reflect the operating results of
Arethusa since April 29, 1996, the effective date of the Arethusa Merger. If
the Arethusa Merger had been effective as of January 1, 1996, revenues for the
quarter ended June 30, 1996 would have increased on an unaudited pro forma
basis to $162.3 million, and net income and net income per share would have
changed on an unaudited pro forma basis to $34.7 million and $0.51,
respectively. For the six months ended June 30, 1996, revenues would have
increased on an unaudited pro forma basis to $310.0 million, and net income and
net income per share would have changed on an unaudited pro forma basis to
$58.8 million and $0.87, respectively. The pro forma information is not
necessarily indicative of the results of operations had the transaction been
effected on the assumed date or the results of operations for any future
periods.


                                       8
<PAGE>   9
3.  INVESTMENT SECURITIES

     Investment securities classified as available for sale at June 30, 1997
were as follows:

<TABLE>
<CAPTION>
                                                       ------------   ------------   -----------
                                                         AMORTIZED     UNREALIZED       MARKET
                                                           COST           GAINS         VALUE
                                                       ------------   ------------   -----------
                                                                     (IN THOUSANDS)
<S>                                                    <C>            <C>            <C>    
Due within 1 year: 
   Debt securities issued by the U.S. Treasury .....   $    196,455   $        169   $   196,624

Due after 1 year through 5 years:
   Debt securities issued by the U.S. Treasury .....        123,933            592       124,525
                                                       ------------   ------------   -----------
          Total ....................................   $    320,388   $        761   $   321,149
                                                       ============   ============   ===========
</TABLE>

     During the quarter and six months ended June 30, 1997, certain investment
securities due within one year were sold for proceeds of $99.6 million and
$199.4 million, respectively. The resulting net realized gains were not
material.

4.  DRILLING AND OTHER PROPERTY AND EQUIPMENT

     Cost and accumulated depreciation of drilling and other property and
equipment are summarized as follows:

<TABLE>
<CAPTION>
                                                             JUNE 30,        DECEMBER 31,
                                                           ------------      ------------
                                                               1997              1996
                                                           ------------      ------------
                                                                   (IN THOUSANDS)
<S>                                                        <C>               <C>
Drilling rigs and equipment ............................   $  1,532,116      $  1,332,980
Construction work in progress ..........................        152,368           116,770
Land and buildings .....................................         12,470            13,154
Office equipment and other .............................          8,924             8,181
                                                           ------------      ------------
   Cost ................................................      1,705,878         1,471,085
Less accumulated depreciation ..........................       (322,485)         (272,925)
                                                           ------------      ------------
     Total .............................................   $  1,383,393      $  1,198,160
                                                           ============      ============

</TABLE>

Asset Acquisitions

     During May 1997, the Company acquired the Polyconfidence, a
semisubmersible accommodation vessel with dynamic positioning capabilities, for
approximately $81.0 million in cash. The Polyconfidence was simultaneously
bareboat chartered through late 1997 to the seller of the vessel until
completion of its existing commitment. The Company is in discussions with
several oil companies regarding conversion of the Polyconfidence to a
semisubmersible drilling unit upon completion of its contract.

Asset Dispositions

     In April 1997, the Company sold a warehouse facility on approximately 6.6
acres of land near Houston, Texas, which was acquired through the Arethusa
Merger, for approximately $0.6 million. No gain or loss was recognized on this
sale. During May 1996, the Company sold the Ocean Magallanes, a jack-up
drilling rig which had previously been stacked in Punta Arenas, Chile, for
approximately $4.2 million. The sale generated an after-tax gain during the
second quarter of 1996 of $2.0 million, or $0.03 per share.



                                       9
<PAGE>   10
5.  GOODWILL

     The Arethusa Merger generated an excess of the purchase price over the
estimated fair value of the net assets acquired. Cost and accumulated
amortization of such goodwill is summarized as follows:

<TABLE>
<CAPTION>
                                                       JUNE 30,        DECEMBER 31,
                                                  ----------------   ---------------
                                                        1997             1996
                                                  ----------------   ---------------
                                                            (IN THOUSANDS)
<S>                                               <C>               <C> 
Goodwill .......................................   $       132,170   $       134,331
Less accumulated amortization ..................            (7,821)          (4,506)
                                                   ---------------   ---------------
          Total ................................   $       124,349   $       129,825
                                                   ===============   ===============
</TABLE>

         During the six months ended June 30, 1997, an adjustment of
approximately $2.2 million was recorded to reduce goodwill before accumulated
amortization. This adjustment resulted primarily from a change in the fair
value of the net assets acquired in the Arethusa Merger.

6.  ACCRUED LIABILITIES

         Accrued liabilities consist of the following:

<TABLE>
<CAPTION>
                                                           JUNE 30,          DECEMBER 31,
                                                       ----------------    ---------------
                                                             1997                1996
                                                       ----------------    ---------------
                                                                 (IN THOUSANDS)
<S>                                                    <C>               <C> 
Personal injury and other claims ....................   $        21,022    $        18,629
Payroll and benefits ................................            11,422              8,336
Interest payable ....................................             6,109                172
Other ...............................................             2,318              1,314
                                                         --------------    ---------------
     Total ..........................................    $       40,871    $        28,451
                                                         ==============    ===============
</TABLE>

7.  LONG-TERM DEBT

Convertible Subordinated Notes

     In February 1997, the Company issued $400.0 million of convertible
subordinated notes (the "Notes") due February 15, 2007. The Notes are
convertible into shares of the Company's common stock, at a conversion price of
$81.00 per share ($40.50 after the July 1997 two-for-one stock split - see Note
10), subject to adjustment in certain circumstances. The Notes have a stated
interest rate of 3.75 percent and an effective interest rate of 3.93 percent.
Interest is payable in cash semi-annually on each February 15 and August 15,
commencing on August 15, 1997.

     The Notes are redeemable, in whole or, from time to time, in part, at the
option of the Company, at any time on or after February 22, 2001, at specified
redemption prices, plus accrued and unpaid interest to the date of redemption.
The Notes are general unsecured obligations of the Company, subordinated in
right of payment to the prior payment in full of the principal and premium, if
any, and interest on all indebtedness of the Company for borrowed money, other
than the Notes, with certain exceptions, and effectively subordinated in right
of payment to the prior payment in full of all indebtedness of the Company's
subsidiaries. The Notes do not restrict the Company's ability to incur other
indebtedness or additional indebtedness of the Company's subsidiaries.

Credit Facility

     The Company may borrow up to $200.0 million at various interest rates, at
the Company's option, under the terms of a revolving credit facility with a
group of banks (the "Credit Facility") available through December 2001. The
Credit Facility contains provisions regarding the maintenance of certain
consolidated financial ratios, 



                                      10
<PAGE>   11
certain indebtedness limitations, and limitations on dividends and similar
payments. As of June 30, 1997, the Company was in compliance with each of these
covenants. Commitment fees are paid based on the unused available portion of
the maximum credit commitment. No amounts were outstanding under the Credit
Facility at June 30, 1997. At December 31, 1996, $63.0 million was outstanding
under the Credit Facility.

     In addition, the Company has lines of credit for short-term financing
aggregating $30.0 million from two U.S. banks. These arrangements provide for
borrowings at various interest rates and may be used on such terms as the
Company and the banks mutually agree. No amounts were outstanding under these
agreements at June 30, 1997. At December 31, 1996, $10.0 million was
outstanding under these agreements.

8.  COMMON STOCK

     In April 1997, the Company completed a public offering of 1.25 million
shares of common stock generating net proceeds of approximately $82.3 million.
The net proceeds were used to acquire the Polyconfidence, a semisubmersible
accommodation vessel (see Note 4).

9.  COMMITMENTS AND CONTINGENCIES

     The survivors of a deceased employee of a subsidiary of the Company,
Diamond M Onshore, Inc., have sued such subsidiary in Duval County, Texas, for
damages as a result of the death of the employee. The plaintiffs have obtained
a judgment in the trial court for $15.7 million plus post-judgment interest.
The Company is vigorously prosecuting an appeal of the judgment. The Company
has received notices from certain of its insurance underwriters reserving their
rights to deny coverage on the Company's insurance policies in excess of $2.0
million for damages resulting from such lawsuit. Management believes that the
Company has complied with all conditions of coverage for final unappealable
damages, if any, in the case. While the ultimate liability in this matter is
difficult to assess, it is management's belief that the final outcome is not
reasonably likely to have a material adverse effect on the Company's
consolidated financial position.

     A former subsidiary of Arethusa, which is now a subsidiary of the Company,
is defending and indemnifying Zapata Off-Shore Company and Zapata Corporation
(the "Zapata Defendants"), pursuant to a contractual defense and
indemnification agreement, in a suit for tortious interference with contract
and conspiracy to tortiously interfere with contract. The plaintiffs seek $14.0
million in actual damages and unspecified punitive damages, plus costs of
court, interest and attorney's fees. The Company believes the Zapata Defendants
have adequate defenses and intends to vigorously defend their position, thus no
provision for any liability has been made in the financial statements.

     Various other claims have been filed against the Company in the ordinary
course of business, particularly claims alleging personal injuries. Management
believes that the Company has established adequate reserves for any liabilities
that may reasonably be expected to result from these claims. In the opinion of
management, no pending or threatened claims, actions or proceedings against the
Company are expected to have a material adverse effect on the Company's
financial position, results of operations, or cash flows.

10.  SUBSEQUENT EVENTS

     In July 1997, the Board of Directors declared a two-for-one stock split in
the form of a stock dividend to stockholders of record on July 24, 1997.
Following the stock split, approximately 139.3 million shares will be
outstanding. Also in July 1997, the Board of Directors declared a cash dividend
of $0.14 per common share, on the pre-split shares, payable August 7, 1997 to
stockholders of record on July 24, 1997.



                                      11
<PAGE>   12
ITEM 2.  MANAGEMENT'S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND 
         RESULTS OF OPERATIONS

     The following discussion should be read in conjunction with the Company's
Consolidated Financial Statements (including the Notes thereto) included
elsewhere herein.

GENERAL

     Business. The Company is a leader in deep water drilling with a fleet of
47 offshore drilling rigs. The fleet consists of 31 semisubmersibles (including
an accommodation vessel), 15 jack-ups and one drillship and operates in the
waters of six of the world's seven continents.

     Merger with Arethusa (Off-Shore) Limited. Effective April 29, 1996, the
merger with Arethusa (Off-Shore) Limited ("Arethusa") was completed (the
"Arethusa Merger"). Arethusa owned a fleet of 11 mobile offshore drilling rigs,
operated two additional mobile offshore drilling rigs pursuant to bareboat
charters, and provided drilling services worldwide to international and
government-controlled oil and gas companies. Because the Arethusa Merger was
accounted for as a purchase for financial reporting purposes, results of
operations include those of Arethusa from the effective date of the Arethusa
Merger. See Note 2 to the Company's Consolidated Financial Statements.



                                      12
<PAGE>   13
RESULTS OF OPERATIONS

THREE MONTHS ENDED JUNE 30, 1997 AND 1996

     Comparative data relating to the Company's revenues and operating expenses
by equipment type are listed below (eliminations offset (i) dayrate revenues
earned when the Company's rigs are utilized in its integrated services and (ii)
intercompany expenses charged to rig operations). Certain amounts applicable to
the prior period have been reclassified to conform to the classifications
currently followed. Such reclassifications do not affect earnings.

     During September 1996 and March 1997, the Company completed its major
upgrades of the Ocean Quest and the Ocean Star, respectively, expanding these
rigs to have fourth-generation capabilities. Upon completion, these rigs are
included in Fourth-Generation Semisubmersibles for discussion purposes (prior
period information will continue to include the rigs in Other
Semisubmersibles). The Company's drillship, the Ocean Clipper I, is included in
Other Semisubmersibles for discussion purposes.

<TABLE>
<CAPTION>
                                              THREE MONTHS ENDED
                                                   JUNE 30,                   
                                            ----------------------   INCREASE/
                                               1997        1996      (DECREASE)
                                            ---------    ---------    --------
                                                     (in thousands)
<S>                                        <C>          <C>          <C>
REVENUES
  Fourth-Generation Semisubmersibles ....   $  49,215    $  26,378    $ 22,837
  Other Semisubmersibles ................     130,916       84,948      45,968
  Jack-ups ..............................      46,824       28,097      18,727
  Integrated Services ...................       1,284        4,891      (3,607)
  Land ..................................          --        5,440      (5,440)
  Other .................................         682           --         682
  Eliminations ..........................        (387)      (2,771)      2,384
                                            ---------    ---------    --------
          Total Revenues ................   $ 228,534    $ 146,983    $ 81,551
                                            =========    =========    ========
CONTRACT DRILLING EXPENSE
  Fourth-Generation Semisubmersibles ....   $  13,696    $   8,937    $  4,759
  Other Semisubmersibles ................      57,188       49,390       7,798
  Jack-ups ..............................      24,713       18,540       6,173
  Integrated Services ...................       1,417        3,928      (2,511)
  Land ..................................          --        4,392      (4,392)
  Other .................................       1,825         (312)      2,137
  Eliminations ..........................        (618)      (3,278)      2,660
                                            ---------    ---------    --------
          Total Contract Drilling Expense   $  98,221    $  81,597    $ 16,624
                                            =========    =========    ========
OPERATING INCOME
  Fourth-Generation Semisubmersibles ....   $  35,519    $  17,441    $ 18,078
  Other Semisubmersibles ................      73,728       35,558      38,170
  Jack-ups ..............................      22,111        9,557      12,554
  Integrated Services ...................        (133)         963      (1,096)
  Land ..................................          --        1,048      (1,048)
  Other .................................      (1,143)         312      (1,455)
  Eliminations ..........................         231          507        (276)
  Depreciation and Amortization Expense .     (27,230)     (18,396)     (8,834)
  General and Administrative Expense ....      (4,859)      (3,449)     (1,410)
  Gain on Sale of Assets ................           5        3,073      (3,068)
                                            ---------    ---------    --------
          Total Operating Income ........   $  98,229    $  46,614    $ 51,615
                                            =========    =========    ========
</TABLE>

     Revenues. The $22.8 million increase in revenues from fourth-generation
rigs resulted primarily from $15.5 million in revenues generated during the
three months ended June 30, 1997 by the Ocean Quest and the Ocean Star upon
completion of their upgrade projects in September 1996 and March 1997,
respectively. In addition, operating dayrate improvements in the Gulf of Mexico
and the North Sea generated $7.3 million in 



                                      13
<PAGE>   14
increased revenues. The $46.0 million increase in revenues from other
semisubmersibles resulted, in part, from $22.8 million in additional revenues
from increased operating dayrates and $5.7 million in additional revenues from
improvements in utilization. Utilization during the second quarter of 1996 was
negatively impacted by rig downtime for repairs, modifications and surveys on
certain rigs. In addition, the eight other semisubmersibles acquired in the
Arethusa Merger contributed an additional $17.5 million of revenue for the
three months ended June 30, 1997 due to increased operating dayrates and the
inclusion of operating results for a complete quarter in 1997, as compared to
only two months included in the second quarter of 1996. The $18.7 million
increase in revenues from jack-ups resulted primarily from $14.8 million in
revenues contributed by increased operating dayrates, primarily in the Gulf of
Mexico. Also, additional revenue of $3.2 million was generated during the three
months ended June 30, 1997 by the four jack-ups acquired in the Arethusa
Merger, as compared to two months of revenue contributed in the comparable
period of the prior year. The $3.6 million decrease in revenues from integrated
services resulted primarily from projects of greater magnitude completed during
the three months ended June 30, 1996. The $5.4 million decrease in revenues
from land operations resulted from the sale of the Company's land division in
December 1996. The $0.7 million of revenues from other operations for the three
months ended June 30, 1997 is primarily bareboat charter fees for the
Polyconfidence, an accommodation vessel purchased in May 1997. See " - Capital
Resources."

     Contract Drilling Expense. The $4.8 million increase in contract drilling
expense for fourth-generation rigs resulted primarily from operating costs
generated by the Ocean Quest and the Ocean Star during the three months ended
June 30, 1997 upon completion of their upgrade projects in September 1996 and
March 1997, respectively. The $7.8 million increase in contract drilling
expense for other semisubmersibles resulted primarily from additional costs of
$9.9 million generated by the eight semisubmersibles acquired in the Arethusa
Merger. These increases are partially offset by a reduction in operating costs
on the Ocean Ambassador and the Ocean Guardian, as compared to the three months
ended June 30, 1996 when these rigs were undergoing equipment modifications and
incurring increased expenses. The $6.2 million increase in expense for jack-ups
resulted primarily from a $5.7 million increase contributed by the rigs
acquired in the Arethusa Merger. The $2.5 million decrease in expense from
integrated services resulted primarily from projects of greater magnitude
completed during the three months ended June 30, 1996. The $4.4 million
decrease in expenses from land operations resulted from the sale of the
Company's land division in December 1996. The $2.1 million increase in other
drilling expense is primarily due to maintenance and repairs on spare
equipment, crew training programs for new employees, and write-offs of certain
receivables deemed uncollectable during the quarter ended June 30, 1997.

     Depreciation and Amortization Expense. Depreciation and amortization
expense for the three months ended June 30, 1997 of $27.2 million increased
$8.8 million from $18.4 million due to additional expense for (i) the rigs
acquired in the Arethusa Merger, (ii) goodwill amortization expense associated
with the Arethusa Merger, (iii) the Ocean Quest and the Ocean Star which
completed their upgrades in September 1996 and March 1997, respectively, and
(iv) the Polyconfidence, acquired in May 1997. See " - Capital Resources."

     General and Administrative Expense. General and administrative expense for
the three months ended June 30, 1997 of $4.8 million increased $1.4 million
from $3.4 million for the three months ended June 30, 1996 primarily due to
increased accruals for the Company's bonus and retention plan. The increased
accruals resulted from a higher estimated bonus pool for the 1997 performance
year and for additional participants in the plan. In addition, general and
administrative expense capitalized to major upgrades decreased to $0.2 million
for the three months ended June 30, 1997 from $0.4 million for the three months
ended June 30, 1996.

     Interest Income. Interest income of $5.5 million for the three months
ended June 30, 1997 consists primarily of the accretion of discounts and
interest earned on investment securities purchased in 1997.

     Interest Expense. Interest expense of $3.3 million for the three months
ended June 30, 1997 consists primarily of $4.0 million interest on $400.0
million of convertible subordinated notes issued in February 1997 (the
"Notes"), partially offset by $0.7 million interest capitalized to major
upgrades.

     Income Tax Expense. Income tax expense of $35.2 million for the three
months ended June 30, 1997 increased $21.4 million from $13.8 million for the
three months ended June 30, 1996. This increase resulted primarily from the
$53.6 million increase in income before income tax expense as compared to the
three months ended June 30, 1996. In addition, the Company changed its practice
beginning in 1997 to provide U.S. taxes on all 



                                      14
<PAGE>   15
undistributed non-U.S. earnings. Prior to 1997, the Company reinvested
such earnings and postponed their remittance indefinitely. Thus, no additional
U.S. taxes were provided on earnings of non-U.S. subsidiaries.

SIX MONTHS ENDED JUNE 30, 1997 AND 1996

     Comparative data relating to the Company's revenues and operating expenses
by equipment type are listed below (eliminations offset (i) dayrate revenues
earned when the Company's rigs are utilized in its integrated services and (ii)
intercompany expenses charged to rig operations). Certain amounts applicable to
the prior period have been reclassified to conform to the classifications
currently followed. Such reclassifications do not affect earnings.

     During September 1996 and March 1997, the Company completed its major
upgrades of the Ocean Quest and the Ocean Star, respectively, expanding these
rigs to have fourth-generation capabilities. Upon completion, these rigs are
included in Fourth-Generation Semisubmersibles for discussion purposes (prior
period information will continue to include the rigs in Other
Semisubmersibles). The Company's drillship, the Ocean Clipper I, is included in
Other Semisubmersibles for discussion purposes.

<TABLE>
<CAPTION>
                                                SIX MONTHS ENDED
                                                  JUNE 30,           
                                           -----------------------   INCREASE/
                                             1997        1996        (DECREASE)
                                           ---------- ------------ ------------
                                                   (in thousands)
 <S>                                       <C>          <C>          <C>
 REVENUES
  Fourth-Generation Semisubmersibles ...   $  91,857    $  47,843    $  44,014
  Other Semisubmersibles ...............     247,749      137,943      109,806
  Jack-ups .............................      90,379       48,233       42,146
  Integrated Services ..................       5,595       18,517      (12,922)
  Land .................................          --       10,542      (10,542)
  Other ................................         682           --          682
  Eliminations .........................      (2,995)      (9,227)       6,232
                                           -----------------------------------
           Total Revenues ..............   $ 433,267    $ 253,851    $ 179,416
                                           ===================================
 CONTRACT DRILLING EXPENSE
  Fourth-Generation Semisubmersibles ...   $  25,169    $  16,834    $   8,335
  Other Semisubmersibles ...............     112,523       80,880       31,643
  Jack-ups .............................      45,974       33,467       12,507
  Integrated Services ..................       5,676       18,056      (12,380)
  Land .................................          --        9,165       (9,165)
  Other ................................       2,186         (210)       2,396
  Eliminations .........................      (3,568)     (10,438)       6,870
                                           -----------------------------------
         Total Contract Drilling Expense   $ 187,960    $ 147,754    $  40,206
                                           ===================================
 OPERATING INCOME
  Fourth-Generation Semisubmersibles ...   $  66,688    $  31,009    $  35,679
  Other Semisubmersibles ...............     135,226       57,063       78,163
  Jack-ups .............................      44,405       14,766       29,639
  Integrated Services ..................         (81)         461         (542)
  Land .................................          --        1,377       (1,377)
  Other ................................      (1,504)         210       (1,714)
  Eliminations .........................         573        1,211         (638)
  Depreciation and Amortization Expense.     (53,042)     (30,465)     (22,577) 
  General and Administrative Expense ...      (9,800)      (6,552)      (3,248)
  Gain on Sale of Assets ...............          70        3,230       (3,160)
                                           -----------------------------------
          Total Operating Income .......   $ 182,535    $  72,310    $ 110,225
                                           ===================================
</TABLE>

     Revenues. The $44.0 million increase in revenues from fourth-generation
semisubmersibles resulted primarily from $24.7 million in revenues generated
during the six months ended June 30, 1997 by the Ocean Quest and the Ocean Star
upon completion of their upgrade projects in September 1996 and March 1997,
respectively. In 


                                      15
<PAGE>   16
addition, improvements in dayrates in the Gulf of Mexico and the North Sea
contributed $16.1 million of additional revenue while increased utilization in
the North Sea contributed $3.2 million of additional revenue. The $109.8
million increase in revenues from other semisubmersibles was partly
attributable to $56.1 million contributed by the eight other semisubmersibles
acquired in the Arethusa Merger for the six months ended June 30, 1997 due to
increased operating dayrates and the inclusion of operating results for these
rigs for a complete six months in 1997 as compared to the inclusion of only two
months in the first half of 1996. Also during the first half of 1997,
improvements in dayrates for the rest of the Company's other semisubmersibles
resulted in $29.5 million of additional revenue and increased utilization
resulted in $24.2 million of additional revenue as compared to the six months
ended June 30, 1996. The $42.1 million increase in revenues from jack-ups
resulted primarily from $27.6 million of revenue contributed by improvements in
dayrates in the Gulf of Mexico and $13.3 million of revenue associated with the
rigs acquired in the Arethusa Merger. Revenues from integrated services
decreased approximately $12.9 million due to turnkey projects and project
management services of greater magnitude completed during the six months ended
June 30, 1996. The $10.5 million decrease in revenues from land operations
resulted from the sale of the Company's land division in December 1996. The
$0.7 million of revenues from other operations for the six months ended June
30, 1997 is primarily bareboat charter fees for the Polyconfidence, an
accommodation vessel purchased in May 1997. See " - Capital Resources."

     Contract Drilling Expense. Contract drilling expense for fourth-generation
semisubmersibles increased $8.3 million over the first six months of the prior
year primarily due to $7.1 million of expenses generated by the Ocean Quest and
the Ocean Star upon completion of their upgrade projects in September 1996 and
March 1997, respectively. The $31.6 million increase in drilling expense for
other semisubmersibles resulted primarily from the additional rigs acquired in
the Arethusa Merger. In addition, expenses for the Ocean Princess and the Ocean
Baroness were reduced during the six month period ended June 30, 1996 due to
the capitalization of costs associated with modifications completed in 1996.
The $12.5 million increase in jack-up expense resulted primarily from the rigs
acquired in the Arethusa Merger. The $12.4 million decrease in integrated
services expense resulted from turnkey projects and project management services
of greater magnitude completed during the six months ended June 30, 1996. The
$9.2 million decrease in expense from land operations resulted from the sale of
the Company's land division in December 1996. The $2.4 million increase in
other drilling expense is primarily due to maintenance and repairs on spare
equipment, crew training programs for new employees, and write-offs of certain
receivables deemed uncollectable during the six months ended June 30, 1997.

     Depreciation and Amortization Expense. Depreciation and amortization
expense of $53.0 million for the six months ended June 30, 1997 increased due
to additional expense for (i) the eleven rigs acquired in the Arethusa Merger,
(ii) goodwill amortization expense associated with the Arethusa Merger, (iii)
the Ocean Quest and the Ocean Star which completed their upgrades in September
1996 and March 1997, respectively, and (iv) the Polyconfidence, acquired in May
1997. See " - Capital Resources."

     General and Administrative Expense. General and administrative expense of
$9.8 million for the six months ended June 30, 1997 increased primarily due to
additional overhead resulting from the Arethusa Merger and increased accruals
for the Company's bonus and retention plan. The increased accruals resulted
from a higher estimated bonus pool for the 1997 performance year and for
additional participants in the plan.

     Interest Income. Interest income of $8.4 million for the six months ended
June 30, 1997 consists primarily of the accretion of discounts and interest
earned on investment securities purchased in 1997.

     Interest Expense. Interest expense of $3.3 million for the six months
ended June 30, 1997 consists primarily of $6.8 million interest on the Notes,
partially offset by $3.5 million interest capitalized to major upgrades.

     Income Tax Expense. Income tax expense for the six months ended June 30,
1997 was $65.9 million as compared to $21.2 million for the comparable period
of the prior year. This change resulted primarily from the increase of $114.5
million in the Company's income before income tax expense. In addition, the
Company changed its practice beginning in 1997 to provide U.S. taxes on all
undistributed non-U.S. earnings. Prior to 1997, the Company reinvested such
earnings and postponed their remittance indefinitely. Thus, no additional U.S.
taxes were provided on earnings of non-U.S. subsidiaries.


                                      16
<PAGE>   17
OUTLOOK

     When included in this Report, the words "expects," "intends," "plans,"
"anticipates," "estimates," and analogous expressions are intended to identify
forward-looking statements. Such statements inherently are subject to a variety
of risks and uncertainties that could cause actual results to differ materially
from those projected. Such risks and uncertainties include, among others,
general economic and business conditions, industry fleet capacity, changes in
foreign and domestic oil and gas exploration and production activity,
competition, changes in foreign, political, social and economic conditions,
regulatory initiatives and compliance with government regulations, customer
preferences and various other matters, many of which are beyond the Company's
control. These forward-looking statements speak only as of the date of this
Report. The Company expressly disclaims any obligation or undertaking to
release publicly any updates or revisions to any forward-looking statement
contained herein to reflect any change in the Company's expectations with
regard thereto or any change in events, conditions or circumstances on which
any statement is based.

     Worldwide deep water exploration continues to provide opportunities for
the Company's semisubmersible fleet and the Company's jack-up fleet continues
to experience improving dayrates. The Company's ability to maintain the recent
favorable trends in revenue growth will be largely dependent on the condition
of the oil and gas industry and, specifically, the exploration and production
expenditures of oil and gas companies. The Company has benefited from 
improvements in demand and from the recent tight supply of major offshore 
drilling rigs, although the Company cannot predict how long these trends
will be maintained. To address the current tight supply situation, customers 
continue to seek to contract rigs for a stated term (as opposed to contracts 
for the drilling of a single well or a group of wells). As a result, more than 
90 percent of the Company's estimated 1997 revenue is committed under existing 
contracts.

     Also, the completion of three major upgrades and their associated
multi-year commitments are expected to provide additional revenue in 1997. In
March 1997, the Company completed the upgrade of the Ocean Star and the rig
began a three-year commitment. The rig, which had been cold stacked, now has
fourth-generation capabilities, including stability and other enhancements such
as water depth capabilities of up to 4,500 feet, increased variable deck load
of approximately 6,000 long tons, a top-drive drilling system, a 15,000 psi
blow-out prevention system, increased deck area, and additional mud pit and
tensioner capacity. The Company also completed the upgrade of its drillship,
the Ocean Clipper I, to operate in the deep water market of the Gulf of Mexico
with dynamic positioning capabilities. The drillship began its four-year
contract in mid-July 1997, although certain equipment modifications are being
completed. In addition, the Ocean Victory, previously cold stacked, is
undergoing modifications in connection with a three-year deep water drilling
program anticipated to begin during the fourth quarter of 1997.

     However, the offshore contract drilling industry historically has been
highly competitive and cyclical, and the Company cannot predict the extent to
which current conditions will continue. The improved opportunities for the
offshore contract drilling industry worldwide has resulted in increased demand
for and a shortage of qualified personnel and equipment, including drill pipe
and riser, necessary on offshore drilling rigs. The Company does not consider
the shortage of such personnel and equipment currently to be a material factor
in its business. However, because the demand for oil field services is
increasing rapidly, a significant increase in costs, including compensation, is
likely to occur if present trends continue for an extended period.

     In addition, the recent improvement in the current results of operations
and prospects for the offshore contract drilling industry as a whole has led to
increased rig construction and enhancement programs by the Company's
competitors and, if present trends continue for an extended period, may lead to
new entrants into the market. A significant increase in the supply of
technologically advanced rigs capable of drilling in deep water may have an
adverse effect on the average operating dayrates for the Company's rigs,
particularly its more advanced semisubmersible units, and on the overall
utilization of the Company's fleet. In such case, the Company's results of
operations would be adversely affected.

LIQUIDITY

     As of June 30, 1997, total cash and short and long-term investment
securities totaled $362.3 million, up from $28.2 million at December 31, 1996.
Cash provided by operating activities for the six months ended June 30, 1997
increased by $91.6 million to $159.7 million, from $68.1 million for the
comparable period of the prior year. 



                                      17
<PAGE>   18
This increase in operating cash flow was primarily attributable to a $69.7
million increase in net income for the first six months of 1997 and a $22.6
million increase in depreciation and amortization primarily resulting from the
Arethusa Merger.

     Investing activities used $550.4 million in cash during the six months
ended June 30, 1997, compared to $74.7 million during the comparable period of
1996. During the six months ended June 30, 1997, the Company purchased the
Polyconfidence, a semisubmersible accommodation vessel working in the U.K.
sector of the North Sea, for approximately $81.0 million in cash. See " -
Capital Resources." In addition, the Company purchased U.S. Treasury bills and
U.S. Treasury notes with a portion of the proceeds from the sale of the Notes,
resulting in an increase in cash used in investing activities. Capital
expenditures also increased substantially during the six months ended June 30,
1997, as the Company continued to invest in major upgrades of its existing
fleet.

     Cash provided by financing activities for the six months ended June 30,
1997 increased $399.0 million to $403.7 million, as compared to $4.7 million
for the comparable period of 1996. Sources of financing during 1997 consisted
primarily of the Company's issuance of the Notes, which resulted in net
proceeds of approximately $394.3 million. The Notes, issued in February 1997,
have a stated and effective interest rate of 3.75 percent and 3.93 percent,
respectively, and are due February 15, 2007. The Notes are convertible, in
whole or in part, at the option of the holder at any time prior to the close of
business on the business day immediately preceding the maturity date into
shares of the Company's common stock, at a conversion price of $81.00 per share
($40.50 after the July 1997 two-for-one stock split). Also, in April 1997, the
Company completed a public offering of 1.25 million shares of common stock
generating net proceeds of approximately $82.3 million. Financing applications
of cash during the six months ended June 30, 1997 included repayment of amounts
outstanding under the Company's short and long-term credit arrangements.

     Other sources of liquidity include the Company's revolving line of credit
expiring December 2001 providing a maximum credit commitment of $200.0 million
(the "Credit Facility"). In addition, the Company has uncommitted lines of
credit for short-term financing aggregating $30.0 million from two U.S. banks.
These arrangements provide for borrowing at various interest rates and may be
used on such terms as the Company and the banks mutually agree. The Company
also maintains the ability to issue an aggregate of approximately $117.5
million in debt, equity and other securities under a Securities and Exchange
Commission shelf registration statement. In addition, the Company also
maintains the ability to issue, from time to time, up to four million shares 
of its common stock, which shares are registered under a shelf registration 
statement, in connection with one or more acquisitions by the Company of
securities or assets of other businesses.

     In July 1997, the Board of Directors declared a two-for-one stock split in
the form of a stock dividend to stockholders of record on July 24, 1997.
Following the stock split, approximately 139.3 million shares will be
outstanding. In addition, the Board of Directors declared a cash dividend of
$0.14 per common share, on the pre-split shares, payable August 7, 1997 to
stockholders of record on July 24, 1997. The cash dividend is anticipated to
decrease operating cash by approximately $9.8 million.

     The Company believes that it has the financial resources needed to meet
its business requirements in the foreseeable future, including capital
expenditures for major upgrades and continuing rig enhancements, and working
capital requirements.

CAPITAL RESOURCES

     Cash requirements for capital commitments result from rig upgrades to meet
specific customer requirements and from the Company's continuing rig
enhancement program. The Company expects to spend approximately $189.2 million
during 1997 for rig upgrades, including approximately $162.5 million for
expenditures in conjunction with the upgrades of the Ocean Clipper I, the Ocean
Star, and the Ocean Victory for deep water drilling in the Gulf of Mexico. The
Company expended $121.3 million on these projects during the six months ended
June 30, 1997. In addition, the Company expects to spend approximately $25.0
million for a cantilever conversion project on the Company's jack-up rig, the
Ocean Warwick, of which $0.5 million has been expended through June 30, 1997.
The Company expects to evaluate other projects as opportunities arise.

     In addition, the Company has budgeted $70.7 million for 1997 capital
expenditures associated with its continuing rig enhancement program, spare
equipment, and other corporate requirements. During the first six 



                                      18
<PAGE>   19
months of 1997, $30.9 million was expended on this program.

     It is management's opinion that significant improvements in operating cash
flow resulting from current conditions of improved dayrates and the increasing
number of term contracts for rigs in certain markets, in conjunction with
proceeds from the Notes, will be sufficient to meet these capital requirements.

     In April 1997, the Company acquired the Polyconfidence, a semisubmersible
accommodation vessel working in the U.K. sector of the North Sea. The Company's
cost to acquire the vessel was approximately $81.0 million in cash. See " -
Liquidity." The Polyconfidence was constructed in 1987 and has Class III
dynamic positioning capabilities. The Company is in discussions with several
oil companies regarding conversion of the Polyconfidence to a semisubmersible
drilling unit with fourth- or fifth-generation capabilities. Such a conversion
would be dependent upon the receipt of a term contract commitment at favorable
dayrates. Although the extent of the conversion would be dependent upon the
particular demands of the customer, the Company's preliminary estimate of
conversion cost is approximately $160.0 million to $175.0 million. The
Polyconfidence would begin its conversion at the conclusion of its present
accommodation unit contract, which is expected to occur in late 1997. Prior to
expiration of this contract, the Company receives approximately $15,000 per day
under a bareboat charter of the vessel. The Company expects to finance the
conversion of the Polyconfidence through the use of cash on hand or internally
generated funds. There can be no assurance that the vessel can or will be
upgraded to fourth- or fifth-generation capability in a cost-effective manner,
that if the vessel is so upgraded there will be adequate demand for its
services, or that competitors will not achieve comparable capabilities through
other means attractive to customers.

     The Company is continually considering potential transactions, including,
but not limited to, enhancement of existing rigs, the purchase of additional
rigs, construction of new rigs and the acquisition of other companies engaged
in contract drilling. Certain of the potential transactions reviewed by the
Company would, if completed, result in its entering new lines of business,
although, in general, these opportunities have been related in some manner to
the Company's existing operations. For example, the Company has explored the
possibility of acquiring certain floating production systems, crew
accommodation units similar to the Polyconfidence and oil service companies
providing subsea products, technology and services, and shipping assets such as
oil tankers, through the acquisition of existing businesses or assets or new
construction. Although the Company does not, as of the date hereof, have a
pending commitment with respect to any material business opportunity, it could
enter into such an agreement in the future. Some of the potential acquisitions
considered by the Company could, if completed, result in the expenditure of a
material amount of funds or the issuance of a material amount of debt or equity
securities.


                                      19
<PAGE>   20
                           PART II. OTHER INFORMATION

ITEM 1.  LEGAL PROCEEDINGS

     Brown Services, Inc. and KOS Industries, Inc. v. Michael D. Brown, BSI
International, Inc., Robert Brown, Robert Furlough, Power House International,
Inc., Zapata Off-Shore Company and Zapata Corporation; No. 92-05691 in the
334th Judicial District Court of Harris County, Texas, filed February 7, 1992.
Plaintiffs have sued Zapata Off-Shore Company and Zapata Corporation (the
"Zapata Defendants") for tortious interference with contract and conspiracy to
tortiously interfere with contract. Plaintiffs seek $14.0 million in actual
damages and unspecified punitive damages, plus costs of court, interest and
attorney's fees. A former subsidiary of Arethusa, which is now a subsidiary of
the Company, is defending and indemnifying the Zapata Defendants pursuant to a
contractual defense and indemnification agreement. The Company believes the
Zapata Defendants have adequate defenses and intends to vigorously defend their
position.

     The Company and its subsidiaries are named defendants in certain other
lawsuits and are involved from time to time as parties to governmental
proceedings, all arising in the ordinary course of business. For a description
of one such lawsuit, see Note 9 to the Company's Consolidated Financial
Statements in Part I of this Report. Although the outcome of lawsuits or other
proceedings involving the Company and its subsidiaries cannot be predicted with
certainty and the amount of any liability that could arise with respect to such
lawsuits or other proceedings cannot be predicted accurately, management does
not expect these matters to have a material adverse effect on the financial
position or results of operations of the Company.

ITEM 2.  CHANGES IN SECURITIES

     None.

ITEM 3.  DEFAULTS UPON SENIOR SECURITIES

     None.

ITEM 4.  SUBMISSIONS OF MATTERS TO A VOTE OF SECURITY HOLDERS

     The Annual Meeting of Stockholders (the "Meeting") of Diamond Offshore
Drilling, Inc. was held on May 5, 1997 in Houston, Texas. At the Meeting, the
holders of 62,813,908 shares out of 68,395,368 shares entitled to vote as
of the record date were represented in person or by proxy, constituting a
quorum. The following matters were voted on and adopted by the margins
indicated:

     a.   To elect a five member Board of Directors, each to serve until the 
          next annual meeting of stockholders and until their successors are 
          elected and qualified.

<TABLE>
<CAPTION>

                                               Number of Shares
                                   For             Withheld        Broker Non-Vote
                               ----------      ----------------    ---------------
          <S>                  <C>                 <C>                  <C>
          James S. Tisch       62,436,176          377,732              0
          Herbert C. Hofmann   62,611,022          202,886              0
          Arthur L. Rebell     62,465,966          347,942              0
          Robert E. Rose       62,611,117          202,791              0
          Raymond S. Troubh    62,641,446          172,462              0

</TABLE>

     b.   To ratify the appointment of Deloitte & Touche LLP as independent
accountants and auditors for the Company for 1997.

<TABLE>
<CAPTION>
          <S>                                   <C> 
          For                                    62,751,022
          Against or Withheld                         2,635
          Abstain                                    60,251
          Broker Non-Vote                                 0
</TABLE>



                                      20

<PAGE>   21
ITEM 5.  OTHER INFORMATION

     None.

ITEM 6.  EXHIBITS AND REPORTS ON FORM 8-K

(a)  Exhibits

     See Index of Exhibits for a list of those exhibits filed herewith, which
index only includes those contracts executed or becoming effective during the
most recent period reflected in this Report pursuant to Instruction 2 to Item
601(b)(10) of Regulation S-K.

(b) The Company filed the following reports on Form 8-K during the second
quarter of 1997:

<TABLE>
<CAPTION>

    Date of Report                     Description of Event
    --------------                     --------------------  
    <S>                 <C>    
    April 15, 1997      Press release announcing first quarter earnings,
                        plans to acquire accommodation vessel, and underwriting 
                        agreement for the public offering of 1.25 million shares
                        of common stock.

</TABLE>


                                      21
<PAGE>   22

                                   SIGNATURES

         Pursuant to the requirements of the Securities Exchange Act of 1934,
the registrant has duly caused this report to be signed on its behalf by the
undersigned thereunto duly authorized.



                         DIAMOND OFFSHORE DRILLING, INC.
                                   (Registrant)




Date     29-Jul-1997     By:   \s\ Robert E. Rose
         -----------           -----------------------------------------------
                               Robert E. Rose
                               President, Chief Executive Officer and Director


Date     29-Jul-1997           \s\ Gary T. Krenek
         -----------           ---------------------------------------------
                               Gary T. Krenek
                               Controller and Chief Accounting Officer



                                      22
<PAGE>   23

                               INDEX OF EXHIBITS

<TABLE>
<CAPTION>

Exhibit No.                        Description
- -----------                        -----------
<S>            <C>    
3.1            Restated Certificate of Incorporation of the Company
               (incorporated by reference to Exhibit 3.1 of the Company's
               Annual Report on Form 10-K for the fiscal year ended December
               31, 1995).

3.2            By-laws of the Company,  as amended  (incorporated  by reference 
               to Exhibits 3.2, 3.2.1 and 3.2.2 of the Company's Registration 
               Statement No. 333-2680 on Forms S-4/S-1).

4.1            Indenture, dated as of February 4, 1997, between the
               Company and The Chase Manhattan Bank, as Trustee (incorporated by
               reference to Exhibit 4.1 of the Company's Current Report on Form
               8-K filed February 11, 1997).

4.2            Supplemental Indenture, dated as of February 4, 1997,
               between the Company and The Chase Manhattan Bank, as Trustee
               (incorporated by reference to Exhibit 4.2 of the Company's
               Current Report on Form 8-K filed February 11, 1997).

11.1*          Statement Re Computation of Per Share Earnings.

27.1*          Financial Data Schedule.

</TABLE>

- -----------------------
* Filed herewith.


                                      23

<PAGE>   1
                                                                  EXHIBIT 11.1


                        DIAMOND OFFSHORE DRILLING, INC.
                 STATEMENT RE COMPUTATION OF PER SHARE EARNINGS
                (THOUSANDS OF DOLLARS, EXCEPT PER SHARE AMOUNTS)

<TABLE>
<CAPTION>
                                                          THREE MONTHS ENDED                         SIX MONTHS ENDED
                                                             JUNE 30, 1997                            JUNE 30, 1997
                                                ----------------------------------------  ---------------------------------------
                                                                                                 
                                                                WEIGHTED     PER SHARE                   WEIGHTED      PER SHARE
                                                   INCOME    AVERAGE SHARES    AMOUNT        INCOME   AVERAGE SHARES     AMOUNT
                                                 (NUMERATOR) (DENOMINATOR)                (NUMERATOR) (DENOMINATOR)
                                                ----------------------------------------  ---------------------------------------
  <S>                                             <C>         <C>             <C>         <C>            <C>          <C>
  Net income................................... $ 65,234       69,413                     $ 121,464      68,901
  Issuance of convertible notes 2/4/97 (1).....    2,112        4,938                         2,112       3,983
                                                ----------------------------------------  ---------------------------------------
         Net income per common and common
         equivalent share (2).................. $ 67,346       74,351         $ 0.91      $ 123,576      72,884       $ 1.70
                                                ========================================  =======================================

</TABLE>

<TABLE>
<CAPTION>
                                                          THREE MONTHS ENDED                         SIX MONTHS ENDED
                                                             JUNE 30, 1996                            JUNE 30, 1996
                                                ----------------------------------------  ---------------------------------------
                                                                                                 
                                                                WEIGHTED     PER SHARE                   WEIGHTED     PER SHARE
                                                   INCOME    AVERAGE SHARES    AMOUNT        INCOME   AVERAGE SHARES    AMOUNT
                                                 (NUMERATOR) (DENOMINATOR)                (NUMERATOR) (DENOMINATOR)
                                                ----------------------------------------  ---------------------------------------
  <S>                                           <C>           <C>             <C>         <C>           <C>          <C>
  Net income................................... $ 33,022       62,166                     $ 51,754      56,083
                                                ----------------------------------------  ---------------------------------------
         Net income per common and common
         equivalent share (2).................. $ 33,022       62,166         $ 0.53      $ 51,754      56,083       $ 0.92
                                                ========================================  =======================================
</TABLE>


(1) On February 4, 1997, the Company issued $400.0 million of 3.75 percent
convertible subordinated notes due February 15, 2007. The notes are convertible
into approximately 4.9 million shares of the Company's common stock (prior to
giving effect to the two-for-one stock split referred to in Note (2) below) at 
any time prior to February 15, 2007 at a conversion price of $81.00 per share.
The number of shares outstanding for the three and six months ended June 30,
1997 was increased to include the weighted average number of shares issuable
assuming full conversion of the notes on February 4, 1997 and net income was
adjusted to eliminate the after-tax effect of interest expense on these notes.

(2) The per share amounts presented do not reflect the effect of the
two-for-one stock split in the form of a stock dividend to stockholders of
record on July 24, 1997. On a post-split basis, net income per common and
common equivalent share will be restated to $0.45 and $0.85 for the quarter and
six months ended June 30, 1997, respectively, as compared to $0.27 and $0.46
for the quarter and six months ended June 30, 1996, respectively.




<TABLE> <S> <C>

<ARTICLE> 5
<LEGEND>
This schedule contains summary financial information extracted from the
Company's financial statements and is qualified in its entirety by reference to
such financial statements.
</LEGEND>
<MULTIPLIER> 1,000
       
<S>                             <C>
<PERIOD-TYPE>                   6-MOS
<FISCAL-YEAR-END>                          DEC-31-1997
<PERIOD-START>                             JAN-01-1997
<PERIOD-END>                               JUN-30-1997
<CASH>                                          41,145
<SECURITIES>                                   196,624
<RECEIVABLES>                                  197,092
<ALLOWANCES>                                         0
<INVENTORY>                                     31,282
<CURRENT-ASSETS>                               482,128
<PP&E>                                       1,705,878
<DEPRECIATION>                               (322,485)
<TOTAL-ASSETS>                               2,124,664
<CURRENT-LIABILITIES>                          115,672
<BONDS>                                        400,000
                                0
                                          0
<COMMON>                                           696
<OTHER-SE>                                   1,398,374
<TOTAL-LIABILITY-AND-EQUITY>                 2,124,664
<SALES>                                              0
<TOTAL-REVENUES>                               433,267
<CGS>                                                0
<TOTAL-COSTS>                                  187,960<F1>
<OTHER-EXPENSES>                                62,772<F2>
<LOSS-PROVISION>                                     0
<INTEREST-EXPENSE>                               3,349
<INCOME-PRETAX>                                187,403
<INCOME-TAX>                                    65,939
<INCOME-CONTINUING>                            121,464
<DISCONTINUED>                                       0
<EXTRAORDINARY>                                      0
<CHANGES>                                            0
<NET-INCOME>                                   121,464
<EPS-PRIMARY>                                     1.70<F3>
<EPS-DILUTED>                                     1.70<F3>
<FN>
<F1>Includes contract drilling expenses only.
<F2>Includes other operating expenses.
<F3>Per share amounts do not reflect the effect of the two-for-one stock split in
the form of a stock dividend to stockholders of record on July 24, 1997. On a
post-split basis, earnings per share - primary and earnings per share - fully
diluted will be restated to $0.85 for the six months ended June 30, 1997.
</FN>
        

</TABLE>


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