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INCOME TAXES (Tables)
12 Months Ended
Dec. 31, 2015
Income Tax Disclosure [Abstract]  
Schedule of effective income tax

Income tax benefit using the Company’s effective income tax rate differs from the U.S. Federal Statutory income tax rate due to the following:

 

    2015     2014     2013  
                   
Income tax benefit at federal statutory rate   $ 31,585     $ 711     $ 2,509  
State income tax benefit, net of federal impact     1,440       34       158  
Incentive stock options and restricted stock  not deductible for tax purposes     (269 )     (79 )     (43 )
Percentage depletion carryover     -       129       174  
Other, net     171       (183 )     (81 )
Increase in valuation allowance     (32,927 )     (612 )     (2,717 )
                         
Income tax benefit (expense)   $ -     $ -     $ -  
Schedule of deferred tax assets and liabilities

The components of deferred tax assets and liabilities as of December 31, 2015 and 2014 are as follows:

 

    2015     2014  
             
Deferred tax assets:                
Net operating loss carryover   $ 19,947     $ 10,382  
Property and equipment     15,645       -  
Percentage depletion and contribution carryovers     2,433       2,444  
Alternative minimum tax credit carryover     706       706  
Equity method investment and other     630       629  
Deferred compensation liability     262       439  
Asset retirement obligations     442       404  
Stock-based compensation     302       248  
                 
Total deferred tax assets     40,367       15,252  
                 
Deferred tax liabilities:                
Property and equipment     -       (8,351 )
Oil price risk derivatives     (538 )     -  
Other     (4 )     (3 )
                 
Total deferred tax liabilities     (542 )     (8,354 )
                 
Net deferred tax assets     39,825       6,898  
Less valuation allowance     (39,825 )     (6,898 )
                 
Net deferred tax asset   $ -     $ -