Annual report pursuant to Section 13 and 15(d)

Related Party Transactions (Details)

v2.4.0.8
Related Party Transactions (Details) (USD $)
12 Months Ended
Dec. 31, 2013
Dec. 31, 2012
Dec. 31, 2011
Sep. 28, 2012
Related Party Transaction [Line Items]        
Lease operating expenses $ 26,703,000 $ 24,308,000 $ 20,897,000  
General and administrative 22,519,000 13,808,000 8,074,000  
Ownership percentage by noncontrolling owners       10.00%
Diamondback Energy, Inc [Member]
       
Related Party Transaction [Line Items]        
Due from (to) related party   (300,000)    
Lease operating expenses   7,100,000    
Oil and natural gas properties   40,400,000    
Windsor Niobrara LLC [Member]
       
Related Party Transaction [Line Items]        
Due from (to) related party   200,000    
Revenue from related parties 900,000 7,500,000    
Windsor Ohio LLC [Member]
       
Related Party Transaction [Line Items]        
Due from (to) related party 1,600,000 6,500,000    
Revenue from related parties 73,400,000 163,700,000    
Rhino [Member]
       
Related Party Transaction [Line Items]        
Due from (to) related party   4,300,000    
Revenue from related parties   4,400,000    
Stingray Pressure Pumping LLC [Member]
       
Related Party Transaction [Line Items]        
Due from (to) related party (8,300,000) (5,300,000)    
Ownership interest 50.00%      
Oil and natural gas properties 58,300,000 4,300,000    
Stingray Cementing LLC [Member]
       
Related Party Transaction [Line Items]        
Due from (to) related party (1,500,000) 0    
Ownership interest 50.00%      
Oil and natural gas properties 4,000,000      
Stingray Energy Services LLC [Member]
       
Related Party Transaction [Line Items]        
Due from (to) related party (4,100,000)      
Ownership interest 50.00%      
Oil and natural gas properties 5,100,000      
Athena Construction Llc [Member]
       
Related Party Transaction [Line Items]        
Due from (to) related party (1,000,000) (1,500,000)    
Lease operating expenses 600,000 400,000    
Oil and natural gas properties 4,100,000 5,000,000    
Black Fin P Llc [Member]
       
Related Party Transaction [Line Items]        
Due from (to) related party 0 0    
Oil and natural gas properties   700,000    
Panther Drilling Systems, LLC [Member]
       
Related Party Transaction [Line Items]        
Due from (to) related party (1,800,000)      
Oil and natural gas properties 12,600,000      
Redback Directional Services, LLC [Member]
       
Related Party Transaction [Line Items]        
Due from (to) related party 0 (1,100,000)    
Oil and natural gas properties 100,000 1,800,000    
Caliber Development Company, LLC [Member]
       
Related Party Transaction [Line Items]        
General and administrative 200,000 100,000    
Executive Officer [Member] | Windsor Niobrara LLC [Member]
       
Related Party Transaction [Line Items]        
Ownership percentage by noncontrolling owners 10.00%      
Executive Officer [Member] | Windsor Ohio LLC [Member]
       
Related Party Transaction [Line Items]        
Payments To Related Party Relating To Ownership Interest   100,000    
Ownership percentage by noncontrolling owners 10.00% 10.00%    
Amount billed on behalf of executive officer   $ 2,000,000    
Executive Officer [Member] | Athena Construction Llc [Member]
       
Related Party Transaction [Line Items]        
Ownership percentage by noncontrolling owners 10.00%      
Executive Officer [Member] | Black Fin P Llc [Member]
       
Related Party Transaction [Line Items]        
Ownership percentage by noncontrolling owners 10.00%