Quarterly report pursuant to Section 13 or 15(d)

Supplemental Guarantor Information (Condensed Consolidating Statement Of Cash Flows) (Details)

v2.4.0.6
Supplemental Guarantor Information (Condensed Consolidating Statement Of Cash Flows) (Details) (USD $)
In Thousands, unless otherwise specified
 3 Months Ended
Mar. 31, 2012
Mar. 31, 2011
Net income $ 3,218 $ 18,649
Depreciation, depletion, amortization and accretion 88,491 74,092
Amortization of debt issuance costs 586 335
Share-based compensation 2,659 1,826
Derivative loss 39,634 23,840
Cash payments on derivative settlements (5,800) (2,223)
Deferred income taxes 2,550 9,347
Oil and natural gas receivables 9,516 (2,435)
Joint interest and other receivables (2,170) 3,235
Insurance receivables 715 9,295
Income taxes (10,386) (18,275)
Prepaid expenses and other assets 3,884 5,062
Asset retirement obligations (5,384) (17,470)
Accounts payable and accrued liabilities (271) (32,618)
Other liabilities 915 65
Net cash provided by operating activities 128,157 72,725
Investment in oil and natural gas properties and equipment (84,626) (39,928)
Purchases of furniture, fixtures and other (500) (80)
Net cash used in investing activities (85,126) (40,008)
Borrowings of long-term debt - revolving bank credit facility 84,000 10,000
Repayments of long-term debt - revolving bank credit facility (117,000) (10,000)
Dividends to shareholders (5,948) (2,979)
Other (87)  
Net cash provided by (used in) financing activities (39,035) (2,979)
Increase in cash and cash equivalents 3,996 29,738
Cash and cash equivalents, beginning of period 4,512 28,655
Cash and cash equivalents, end of period 8,508 58,393
Parent Company [Member]
    
Net income 3,218 18,649
Depreciation, depletion, amortization and accretion 67,623 51,411
Amortization of debt issuance costs 586 335
Share-based compensation 2,659 1,826
Derivative loss 39,634 23,840
Cash payments on derivative settlements (5,800) (2,223)
Deferred income taxes 2,963 12,707
Earnings of affiliates (18,516) (22,536)
Oil and natural gas receivables 8,187 (3,608)
Joint interest and other receivables (2,170) 3,235
Insurance receivables 715 9,295
Income taxes (20,766) (33,772)
Prepaid expenses and other assets 3,735 5,062
Asset retirement obligations (5,384) (17,470)
Accounts payable and accrued liabilities 1,787 (31,286)
Other liabilities 38,769 55,229
Net cash provided by operating activities 117,240 70,694
Investment in oil and natural gas properties and equipment (73,709) (37,897)
Purchases of furniture, fixtures and other (500) (80)
Net cash used in investing activities (74,209) (37,977)
Borrowings of long-term debt - revolving bank credit facility 84,000 10,000
Repayments of long-term debt - revolving bank credit facility (117,000) (10,000)
Dividends to shareholders (5,948) (2,979)
Other (87)  
Net cash provided by (used in) financing activities (39,035) (2,979)
Increase in cash and cash equivalents 3,996 29,738
Cash and cash equivalents, beginning of period 4,512 28,655
Cash and cash equivalents, end of period 8,508 58,393
Guarantor Subsidiaries [Member]
    
Net income 18,516 22,536
Depreciation, depletion, amortization and accretion 20,868 22,681
Deferred income taxes (413) (3,360)
Oil and natural gas receivables 1,329 1,173
Income taxes 10,380 15,497
Prepaid expenses and other assets (37,855) (55,164)
Accounts payable and accrued liabilities (1,908) (1,332)
Net cash provided by operating activities 10,917 2,031
Investment in oil and natural gas properties and equipment (10,917) (2,031)
Net cash used in investing activities (10,917) (2,031)
Eliminations [Member]
    
Net income (18,516) (22,536)
Earnings of affiliates 18,516 22,536
Prepaid expenses and other assets 38,004 55,164
Accounts payable and accrued liabilities (150)  
Other liabilities $ (37,854) $ (55,164)