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
6 Months Ended
Jun. 30, 2013
Jun. 30, 2012
Operating activities:    
Net income $ 49,014 $ 56,785
Adjustments to reconcile net income to net cash provided by operating activities:    
Depreciation, depletion, amortization and accretion 208,767 174,432
Amortization of debt issuance costs and premium 910 1,287
Share-based compensation 4,950 5,818
Derivative gain (9,473) (10,238)
Cash payments on derivative settlements (2,310) (6,084)
Deferred income taxes 23,726 48,120
Changes in operating assets and liabilities:    
Oil and natural gas receivables 17,063 26,121
Joint interest and other receivables 33,620 3,630
Insurance receivables 5,015 500
Income taxes 8,579 (22,062)
Prepaid expenses and other assets (12,381) (14,110)
Asset retirement obligation settlements (32,886) (29,228)
Accounts payable, accrued liabilities and other 2,768 6,354
Net cash provided by operating activities 297,362 241,325
Investing activities:    
Investment in oil and natural gas properties and equipment (299,213) (187,284)
Proceeds from sales of oil and natural gas properties and equipment   30,453
Change in restricted cash   (30,763)
Purchases of furniture, fixtures and other (981) (668)
Net cash used in investing activities (300,194) (188,262)
Financing activities:    
Borrowings of long-term debt - revolving bank credit facility 252,000 197,000
Repayments of long-term debt - revolving bank credit facility (239,000) (234,000)
Dividends to shareholders (12,795) (11,898)
Other (342) (124)
Net cash used in financing activities (137) (49,022)
Increase (decrease) in cash and cash equivalents (2,969) 4,041
Cash and cash equivalents, beginning of period 12,245 4,512
Cash and cash equivalents, end of period $ 9,276 $ 8,553