Quarterly report pursuant to Section 13 or 15(d)

Other Assets (Schedule Of Other Assets) (Details)

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Other Assets (Schedule Of Other Assets) (Details) - USD ($)
$ in Thousands
Jun. 30, 2015
Dec. 31, 2014
Schedule of Prepaid Expenses [Line Items]    
Plugging and abandonment escrow account on the WCBB properties (Note 9) $ 3,089 $ 3,097
Certificates of Deposit securing letter of credit 275 275
Prepaid drilling costs 269 483
Loan commitment fees 21,640 15,390
Deposits 34 34
Other 111 117
Other assets 25,418 $ 19,396
Prepaid Expenses and Other Current Assets [Member]    
Schedule of Prepaid Expenses [Line Items]    
Prepaid taxes 12,100  
Prepaid insurance 1,700  
Prepaid other expenses $ 1,400