| Net income | -488.59M |
| Depreciation | 295.73M |
| Gain on disposition of assets | |
| Loss (gain) on sale of marketable securities, net | 12.15M |
| Gain on foreign currency forward exchange contracts | |
| Deferred tax provision | -114.41M |
| Accretion of discounts on marketable securities | |
| Amortization of debt issuance costs | |
| Amortization of debt discounts | |
| Stock-based compensation expense | 3.75M |
| Deferred income, net | |
| Deferred expenses, net | |
| Other assets, noncurrent | |
| Other liabilities, noncurrent | |
| Proceeds from settlement of foreign currency forward exchange contracts designated as accounting hedges | |
| Accounts receivable | 131.39M |
| Prepaid expenses and other current assets | 3.95M |
| Accounts payable and accrued liabilities | -32.76M |
| Taxes payable | 25.04M |
| Net cash provided by operating activities | |
| Capital expenditures | -598.24M |
| Deposits for construction of new rigs | |
| Deposits received on sale of rig | |
| Proceeds from disposition of assets, net of disposal costs | 169.04M |
| Proceeds from sale and maturities of marketable securities | 4.6M |
| Purchases of marketable securities | |
| Net cash used in investing activities | |
| Redemption of zero coupon debentures | |
| Debt issuance costs and arrangement fees | |
| Payment of dividends | -408K |
| Proceeds from stock plan exercises | |
| Net cash used in financing activities | |
| Net change in cash and cash equivalents | -37.7M |
| Cash and cash equivalents, beginning of period | 119.03M |
| Cash and cash equivalents, end of period | 81.33M |