EXHIBIT 99.1 FOR IMMEDIATE RELEASE CONTACT: CAREN W. STEFFES THURSDAY, APRIL 17, 2003 (281) 492-5393 DIAMOND OFFSHORE DRILLING, INC. ANNOUNCES FIRST QUARTER 2003 EARNINGS Houston, Texas, April 17, 2003 -- Diamond Offshore Drilling, Inc. (NYSE:DO) today reported a net loss of $21.6 million, or $0.17 per share on a diluted basis, on revenues of $146.1 million for the first quarter of 2003, compared to net income of $22.6 million, or $0.17 per share on a diluted basis, on revenues of $201.6 million for the first quarter of 2002. As of March 31, 2003, there were 130.3 million shares of common stock outstanding. Depending on market conditions, the Company may, from time to time, purchase shares of its outstanding common stock in the open market or otherwise. Diamond Offshore is a leader in deep water drilling. The Company's fleet of 47 offshore drilling rigs consists of 32 semisubmersibles, 14 jack-ups and one drillship. The fleet operates in the waters of six of the world's seven continents. As previously announced, Diamond Offshore will provide an online, real-time simulcast and rebroadcast of its 2003 first quarter earnings release conference call. The live broadcast of the Diamond Offshore Drilling, Inc. quarterly conference call will be available online at www.diamondoffshore.com on April 17, 2003, beginning at 9:00 a.m. Central Time. The online replay will follow immediately and continue for 5 days after the original call. Please go to the web site at least 15 minutes before the broadcast to register, download and install any necessary audio software. Statements in this press release that contain "forward-looking statements" within the meaning of Section 27A of the Securities Act of 1933, as amended, and Section 21E of the Securities Exchange Act of 1934, as amended, include, but are not limited to, statements concerning the Company's possible purchase of shares of its outstanding common stock. Such statements are inherently subject to a variety of risks and uncertainties that could cause actual results to differ materially from those anticipated or projected. A discussion of the risk factors that could impact these areas and the Company's overall business and financial performance can be found in the Company's reports and other filings with the Securities and Exchange Commission. These factors include, among others, general economic and business conditions, casualty losses, 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 governmental regulations, customer preferences and various other matters, many of which are beyond the Company's control. Given these concerns, investors and analysts should not place undue reliance on forward-looking statements. Each forward-looking statement speaks only as of the date of this press release. The Company expressly disclaims any obligation or undertaking to release publicly any updates or revisions to any forward-looking statement to reflect any change in the Company's expectations with regard thereto or any change in events, conditions or circumstances on which any forward-looking statement is based. DIAMOND OFFSHORE DRILLING, INC. AND SUBSIDIARIES CONSOLIDATED STATEMENTS OF OPERATIONS (Unaudited) (In thousands, except per share data) THREE MONTHS ENDED MARCH 31, ------------------------------------ 2003 2002 ----------------- ---------------- REVENUES: Contract drilling.......................................... $ 139,859 $ 193,668 Revenues related to reimbursable expenses.................. 6,290 7,882 ----------------- ----------------- Total revenues....................................... 146,149 201,550 ----------------- ----------------- OPERATING EXPENSES: Contract drilling.......................................... 113,670 120,947 Reimbursable expenses...................................... 5,738 7,212 Depreciation............................................... 47,277 42,697 General and administrative................................. 7,200 6,648 ----------------- ----------------- Total operating expenses............................. 173,885 177,504 ----------------- ----------------- OPERATING INCOME (LOSS)............................................ (27,736) 24,046 OTHER INCOME (EXPENSE): Interest income............................................ 4,156 9,581 Interest expense........................................... (5,575) (5,470) (Loss) gain on sale of marketable securities............... (61) 3,492 Other, net................................................. 1,743 853 ----------------- ----------------- INCOME BEFORE INCOME TAX EXPENSE................................... (27,473) 32,502 INCOME TAX BENEFIT (EXPENSE)....................................... 5,907 (9,944) ----------------- ----------------- NET INCOME (LOSS).................................................. $ (21,566) $ 22,558 ================= ================= EARNINGS (LOSS) PER SHARE: Basic ..................................................... $ (0.17) $ 0.17 ================= ================= Diluted.................................................... $ (0.17) $ 0.17 ================= ================= WEIGHTED AVERAGE SHARES OUTSTANDING: Shares of common stock.................................. 130,336 131,786 Dilutive potential shares of common stock............... -- 9,482 ----------------- ----------------- Total weighted average shares outstanding..... 130,336 141,268 ================= ================= 2 DIAMOND OFFSHORE DRILLING, INC. AND SUBSIDIARIES RESULTS OF OPERATIONS (Unaudited) (In thousands) THREE MONTHS ENDED MARCH 31, --------------------------------- 2003 2002 ---------------- ---------------- REVENUES High Specification Floaters....................... $ 63,634 $ 74,647 Other Semisubmersibles............................ 51,703 88,080 Jack-ups.......................................... 23,566 29,500 Integrated Services............................... 1,189 1,823 Eliminations...................................... (233) (382) ---------------- ---------------- TOTAL CONTRACT DRILLING REVENUE..................... $ 139,859 $ 193,668 ================ ================ REVENUES RELATED TO REIMBURSABLE EXPENSES........... $ 6,290 $ 7,882 ================ ================ CONTRACT DRILLING EXPENSE High Specification Floaters....................... $ 38,276 $ 35,528 Other Semisubmersibles............................ 49,717 56,873 Jack-ups.......................................... 24,251 25,682 Integrated Services............................... 1,249 2,841 Other............................................. 410 405 Eliminations...................................... (233) (382) ---------------- ---------------- TOTAL CONTRACT DRILLING EXPENSE..................... $ 113,670 $ 120,947 ================ ================ REIMBURSABLE EXPENSES............................... $ 5,738 $ 7,212 ================ ================ OPERATING INCOME (LOSS) High Specification Floaters....................... $ 25,358 $ 39,119 Other Semisubmersibles............................ 1,986 31,207 Jack-ups.......................................... (685) 3,818 Integrated Services............................... (60) (1,018) Other............................................. (410) (405) Reimbursables, net................................ 552 670 Depreciation Expense.............................. (47,277) (42,697) General and Administrative Expense................ (7,200) (6,648) ---------------- ---------------- Total Operating Income (Loss)............. $ (27,736) $ 24,046 ================ ================ 3 DIAMOND OFFSHORE DRILLING, INC. AND SUBSIDIARIES CONDENSED CONSOLIDATED BALANCE SHEETS (In thousands) MARCH 31, DECEMBER 31, --------------------------------------- 2003 2002 ------------------- ------------------- (unaudited) ASSETS Current assets: Cash and cash equivalents................................. $ 195,525 $ 184,910 Marketable securities..................................... 495,563 627,614 Accounts receivable....................................... 138,297 146,957 Rig inventory and supplies................................ 46,715 45,405 Prepaid expenses and other................................ 27,172 28,870 ------------------- ------------------- Total current assets........................ 903,272 1,033,756 Drilling and other property and equipment, net of accumulated depreciation................................... 2,250,999 2,164,627 Goodwill, net of accumulated amortization....................... 21,311 24,714 Other assets.................................................... 35,443 35,668 ------------------- ------------------- Total assets................................ $ 3,211,025 $ 3,258,765 =================== =================== LIABILITIES AND STOCKHOLDERS' EQUITY Current liabilities............................................. $ 121,405 $ 118,402 Long-term debt.................................................. 928,313 924,475 Deferred tax liability.......................................... 360,643 375,309 Other liabilities............................................... 33,401 33,065 Stockholders' equity............................................ 1,767,263 1,807,514 ------------------- ------------------- Total liabilities and stockholders' equity.......... $ 3,211,025 $ 3,258,765 =================== =================== 4 DIAMOND OFFSHORE DRILLING, INC. AND SUBSIDIARIES AVERAGE DAYRATES AND UTILIZATION FIRST QUARTER FOURTH QUARTER FIRST QUARTER 2003 2002 2002 -------------------------------------------------------------------------------------------------- DAYRATE UTILIZATION DAYRATE UTILIZATION DAYRATE UTILIZATION -------------------------------------------------------------------------------------------------- (Dayrate in thousands) HIGH SPECIFICATION FLOATERS $94 83% $99 84% $116 88% OTHER SEMISUBMERSIBLES $62 43% $64 61% $68 69% JACK-UPS $28 68% $28 68% $30 78% 5