Quarterly report pursuant to Section 13 or 15(d)

CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS

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CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS (USD $)
In Thousands, unless otherwise specified
9 Months Ended
Sep. 30, 2012
Sep. 30, 2011
Operating activities:    
Net income $ 55,315 $ 126,752
Adjustments to reconcile net income to net cash provided by operating activities:    
Depreciation, depletion, amortization and accretion 251,894 241,917
Amortization of debt issuance costs 2,046 1,401
Loss on extinguishment of debt   22,694
Share-based compensation 9,137 6,437
Derivative (gain) loss 14,421 (10,815)
Cash payments on derivative settlements (6,960) (9,239)
Deferred income taxes 44,465 59,442
Changes in operating assets and liabilities:    
Oil and natural gas receivables 30,320 (2,913)
Joint interest and other receivables 3,935 7,465
Insurance receivables 500 18,971
Income taxes (24,327) (15,894)
Prepaid expenses and other assets 670 (22,601)
Asset retirement obligations (63,150) (51,349)
Accounts payable and accrued liabilities 32,311 23,892
Other liabilities 912 (109)
Net cash provided by operating activities 351,489 396,051
Investing activities:    
Acquisitions of property interests in oil and natural gas properties   (434,582)
Investment in oil and natural gas properties and equipment (312,372) (185,222)
Proceeds from sales of oil and natural gas properties and equipment 30,453 15
Change in restricted cash (24,026)  
Deposit for acquisition (22,800)  
Purchases of furniture, fixtures and other (2,125) (318)
Net cash used in investing activities (330,870) (620,107)
Financing activities:    
Issuance of 8.50% Senior Notes   600,000
Repurchase of 8.25% Senior Notes   (450,000)
Borrowings of long-term debt - revolving bank credit facility 316,000 512,000
Repayments of long-term debt - revolving bank credit facility (314,000) (418,000)
Repurchase premium and debt issuance costs (2,081) (31,997)
Dividends to shareholders (17,848) (8,936)
Other (209)  
Net cash (used in) provided by financing activities (18,138) 203,067
Increase (decrease) in cash and cash equivalents 2,481 (20,989)
Cash and cash equivalents, beginning of period 4,512 28,655
Cash and cash equivalents, end of period $ 6,993 $ 7,666