Quarterly report pursuant to Section 13 or 15(d)

Condensed Consolidated Balance Sheets

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Condensed Consolidated Balance Sheets (USD $)
In Thousands, unless otherwise specified
Jun. 30, 2014
Dec. 31, 2013
Current assets:    
Cash and cash equivalents $ 23,847 $ 15,800
Receivables:    
Oil and natural gas sales 94,417 96,752
Joint interest and other 26,584 27,984
Income tax 120 3,120
Total receivables 121,121 127,856
Prepaid expenses and other assets 38,644 29,946
Total current assets 183,612 173,602
Property and equipment - at cost:    
Oil and natural gas properties and equipment (full cost method, of which $122,713 at June 30, 2014 and $116,612 at December 31, 2013 were excluded from amortization) 7,628,208 7,339,097
Furniture, fixtures and other 21,660 21,431
Total property and equipment 7,649,868 7,360,528
Less accumulated depreciation, depletion and amortization 5,326,074 5,084,704
Net property and equipment 2,323,794 2,275,824
Restricted deposits for asset retirement obligations 23,723 37,421
Other assets 18,643 20,455
Total assets 2,549,772 2,507,302
Current liabilities:    
Accounts payable 140,495 145,212
Undistributed oil and natural gas proceeds 39,202 42,107
Asset retirement obligations 69,923 77,785
Accrued liabilities 31,299 28,000
Total current liabilities 280,919 293,104
Long-term debt, less current maturities 1,224,262 1,205,421
Asset retirement obligations, less current portion 287,680 276,637
Deferred income taxes 189,902 178,142
Other liabilities 13,622 13,388
Commitments and contingencies      
Shareholders' equity:    
Preferred stock, $0.00001 par value; 20,000,000 shares authorized; 0 issued at June 30, 2014 and December 31, 2013      
Common stock, $0.00001 par value; 118,330,000 shares authorized; 78,525,731 issued and 75,656,558 outstanding at June 30, 2014; 78,460,872 issued and 75,591,699 outstanding at December 31, 2013 1 1
Additional paid-in capital 410,642 403,564
Retained earnings 166,911 161,212
Treasury stock, at cost (24,167) (24,167)
Total shareholders' equity 553,387 540,610
Total liabilities and shareholders' equity $ 2,549,772 $ 2,507,302