Quarterly report pursuant to Section 13 or 15(d)

Acquisitions and Dispositions (Narrative) (Details)

v3.19.1
Acquisitions and Dispositions (Narrative) (Details)
a in Thousands, $ in Thousands
 3 Months Ended
Aug. 31, 2018
USD ($)
a
Mar. 31, 2019
USD ($)
Dec. 31, 2018
USD ($)
Mar. 31, 2018
USD ($)
WildHorse acreage        
Business Acquisition [Line Items]        
Proceeds from leasehold interest   $ (14,084)    
Spur operating areas        
Business Acquisition [Line Items]        
Consideration transferred   $ 21,407    
Cimarex Energy Company        
Business Acquisition [Line Items]        
Consideration transferred $ 539,519      
Gas and oil area, developed and undeveloped, net (in acres) | a 28      
Monarch and Wildhorse        
Business Acquisition [Line Items]        
Consideration transferred       $ 37,770
Wildhorse and Spur        
Business Acquisition [Line Items]        
Consideration transferred     $ 87,865