Annual report pursuant to Section 13 and 15(d)

Consolidated Statements Of Cash Flows

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Consolidated Statements Of Cash Flows (USD $)
In Thousands, unless otherwise specified
12 Months Ended
Dec. 31, 2011
Dec. 31, 2010
Dec. 31, 2009
Operating activities:      
Net income (loss) $ 172,817 $ 117,892 $ (187,919)
Adjustments to reconcile net income (loss) to net cash provided by operating activities:      
Depreciation, depletion, amortization and accretion 328,786 294,100 345,637
Impairment of oil and natural gas properties       218,871
Amortization of debt issuance costs and discount on indebtedness 2,010 1,338 1,838
Loss on extinguishment of debt 22,694    2,817
Share-based compensation 9,710 5,533 6,380
Derivative (gain) loss (1,896) 4,256 7,372
Cash payments on derivative settlements (9,873) 874 (6,679)
Deferred income taxes 61,835 (8,266) (346)
Other       998
Changes in operating assets and liabilities:      
Oil and natural gas receivables (18,639) (24,933) (18,509)
Joint interest and other receivables 375 25,897 31,866
Insurance receivables 20,771 54,873 23,235
Income taxes (7,124) 104,067 (52,100)
Prepaid expenses and other assets (7,809) 4,536 (749)
Asset retirement obligations (59,958) (87,166) (99,069)
Accounts payable and accrued liabilities 7,881 (31,885) (117,230)
Other liabilities (102) 3,656 (147)
Net cash provided by operating activities 521,478 464,772 156,266
Investing activities:      
Acquisition of property interest in oil and natural gas properties (437,247) (236,944) (2,421)
Investment in oil and natural gas properties and equipment (281,779) (178,709) (273,713)
Proceeds from sales of oil and natural gas properties and equipment 15 1,420 32,226
Proceeds from insurance       6,916
Purchases of furniture, fixtures and other, net (3,660) (760) (705)
Net cash used in investing activities (722,671) (414,993) (237,697)
Financing activities:      
Issuance of 8.5% Senior Notes 600,000     
Repurchase of 8.25% Senior Notes (450,000)     
Borrowings of long-term debt - revolving bank credit facility 623,000 627,500 205,441
Repayments of long-term debt - revolving bank credit facility (506,000) (627,500) (410,941)
Repurchase premium and debt issuance costs (32,288)     
Dividends to shareholders (58,756) (59,609) (9,158)
Repurchases of common stock       (24,167)
Other 1,094 298 891
Net cash provided by (used in) financing activities 177,050 (59,311) (237,934)
Decrease in cash and cash equivalents (24,143) (9,532) (319,365)
Cash and cash equivalents, beginning of period 28,655 38,187 357,552
Cash and cash equivalents, end of period $ 4,512 $ 28,655 $ 38,187