<TABLE> <S> <C>
<PAGE>
<ARTICLE> 5
<RESTATED>
<MULTIPLIER> 1,000
<S> <C> <C>
<PERIOD-TYPE> 6-MOS 6-MOS
<FISCAL-YEAR-END> DEC-31-2000 DEC-31-1999
<PERIOD-START> JAN-01-2000 JAN-01-1999
<PERIOD-END> JUN-30-2000 JUN-30-1999
<CASH> 169,297 84,868
<SECURITIES> 0 0
<RECEIVABLES> 318,940 213,622
<ALLOWANCES> 31,396 5,155
<INVENTORY> 0 0
<CURRENT-ASSETS> 571,916 367,374
<PP&E> 5,776,384 2,192,628
<DEPRECIATION> 1,236,688 1,091,043
<TOTAL-ASSETS> 6,314,277 1,514,639
<CURRENT-LIABILITIES> 393,590 309,949
<BONDS> 1,412,720 77,428
0 0
0 0
<COMMON> 2,106 0
<OTHER-SE> 3,974,106 518,932
<TOTAL-LIABILITY-AND-EQUITY> 6,314,277 1,514,639
<SALES> 0 0
<TOTAL-REVENUES> 600,092 351,590
<CGS> 0 0
<TOTAL-COSTS> 521,979 311,421
<OTHER-EXPENSES> 0 0
<LOSS-PROVISION> 0 0
<INTEREST-EXPENSE> 304 6,911
<INCOME-PRETAX> 89,205 39,605
<INCOME-TAX> 20,785 911
<INCOME-CONTINUING> 68,420 38,694
<DISCONTINUED> 0 0
<EXTRAORDINARY> 0 0
<CHANGES> 0 0
<NET-INCOME> 68,420 38,694
<EPS-BASIC> 0.33 0.35<F2>
<EPS-DILUTED> 0.32 0.35<F2>
<FN>
<F1>1999 has been restated due to the Reverse Acquisition of Transocean Offshore
Inc. by Sedco Forex Holdings Ltd.
<F2>Basic and Diluted Earnings Per Share are shown on a Pro Forma basis.
</FN>
</TABLE>