XML 67 R50.htm IDEA: XBRL DOCUMENT v3.3.1.900
Acquisitions - 2014 Activity (Details)
 1 Months Ended 4 Months Ended 10 Months Ended 12 Months Ended
Sep. 09, 2014
USD ($)
a
Aug. 25, 2014
USD ($)
a
Feb. 28, 2014
USD ($)
a
Sep. 30, 2013
USD ($)
Dec. 31, 2014
USD ($)
a
Dec. 31, 2014
USD ($)
a
Dec. 31, 2015
USD ($)
Dec. 31, 2014
USD ($)
a
Dec. 31, 2013
USD ($)
Business Acquisition [Line Items]                  
Payments to acquire leasehold interests             $ 437,455,000 $ 845,826,000 $ 177,343,000
Payments to acquire surface rights             1,213,000 44,213,000 2,234,000
Payments to acquire mineral interests             $ 43,907,000 57,689,000 $ 444,083,000
Permian Basin [Member]                  
Business Acquisition [Line Items]                  
Payments to acquire leasehold interests       $ 165,000,000          
Surface rights area (in acres) | a   4,200              
Payments to acquire surface rights   $ 41,900,000              
Viper Energy Partners LP [Member]                  
Business Acquisition [Line Items]                  
Cost method investment         $ 33,900,000 $ 33,900,000   $ 33,900,000  
Viper Energy Partners LP [Member] | Midland and Delaware Basin [Member]                  
Business Acquisition [Line Items]                  
Mineral Interest Area, Developed, Gross | a         10,364 10,364   10,364  
Mineral Interest, Area, Developed, Net | a         3,261 3,261   3,261  
Payments to acquire mineral interests               $ 57,700,000  
Oil and Gas Interest in Permian Basin Acquired in September 2014 [Member] | Permian Basin [Member]                  
Business Acquisition [Line Items]                  
Acres of oil and gas property, working interest, gross | a 17,617                
Acres of oil and gas property, working interest, net | a 12,967                
Percent of working interest 74.00%                
Percent of net revenue interest 75.00%                
Payments to acquire leasehold interests $ 523,260,000                
Goodwill acquired 0                
Bargain purchase gain $ 0                
Revenues included in consolidated statements of operations since acquisition date         $ 12,327,000        
Direct operating expenses included in consolidated statements of operations since acquisition date         $ 4,565,000        
Oil and Gas Interest in Permian Basin Acquired in February 2014 [Member] | Permian Basin [Member]                  
Business Acquisition [Line Items]                  
Acres of oil and gas property, working interest, gross | a     6,450            
Percent of working interest     74.00%            
Percent of net revenue interest     56.00%            
Payments to acquire leasehold interests     $ 292,159,000            
Goodwill acquired     0            
Bargain purchase gain     $ 0            
Revenues included in consolidated statements of operations since acquisition date           $ 40,500,000      
Direct operating expenses included in consolidated statements of operations since acquisition date           $ 7,800,000      
Mineral Interest, Area, Developed, Net | a     4,785