Quarterly report pursuant to Section 13 or 15(d)

Condensed Consolidating Statement of Cash Flows (Detail)

v2.4.0.8
Condensed Consolidating Statement of Cash Flows (Detail) (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)
Purchases of furniture, fixtures and other (981) (668)
Net cash used in investing activities (300,194) (188,262)
Proceeds from sales of oil and natural gas properties and equipment   30,453
Change in restricted cash   (30,763)
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)
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
Parent Company
    
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 164,366 131,082
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 18,906 46,010
Earnings of affiliates (27,556) (37,844)
Changes in operating assets and liabilities:    
Oil and natural gas receivables 15,439 22,750
Joint interest and other receivables 33,620 3,630
Insurance receivables 5,015 500
Income taxes (1,487) (40,351)
Prepaid expenses and other assets (12,381) (14,110)
Asset retirement obligation settlements (32,723) (29,228)
Accounts payable, accrued liabilities and other 44,054 79,539
Net cash provided by operating activities 250,344 209,546
Investing activities:    
Investment in oil and natural gas properties and equipment (252,195) (155,505)
Purchases of furniture, fixtures and other (981) (668)
Net cash used in investing activities (253,176) (156,483)
Proceeds from sales of oil and natural gas properties and equipment   30,453
Change in restricted cash   (30,763)
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)
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
Guarantor Subsidiaries
    
Operating activities:    
Net income 27,556 37,844
Adjustments to reconcile net income to net cash provided by operating activities:    
Depreciation, depletion, amortization and accretion 44,401 43,350
Deferred income taxes 4,820 2,110
Changes in operating assets and liabilities:    
Oil and natural gas receivables 1,624 3,371
Income taxes 10,066 18,289
Prepaid expenses and other assets (41,160) (71,419)
Asset retirement obligation settlements (163)  
Accounts payable, accrued liabilities and other (126) (1,766)
Net cash provided by operating activities 47,018 31,779
Investing activities:    
Investment in oil and natural gas properties and equipment (47,018) (31,779)
Net cash used in investing activities (47,018) (31,779)
Financing activities:    
Cash and cash equivalents, beginning of period     
Cash and cash equivalents, end of period     
Eliminations
    
Operating activities:    
Net income (27,556) (37,844)
Adjustments to reconcile net income to net cash provided by operating activities:    
Earnings of affiliates 27,556 37,844
Changes in operating assets and liabilities:    
Prepaid expenses and other assets 41,160 71,419
Accounts payable, accrued liabilities and other (41,160) (71,419)
Financing activities:    
Cash and cash equivalents, beginning of period     
Cash and cash equivalents, end of period