Revenues (Tables)
12 Months Ended
Dec. 31, 2019
Revenue from Contract with Customer [Abstract]  
Summary of Disaggregated Oil and Gas Revenues
Oil and gas revenues presented within the Consolidated Statements of Operations relate to the sale of oil, natural gas and NGLs as shown below:
 
Year Ended December 31,
 
2019
 
2018
 
2017
Operating revenues (in thousands):
 
 
 
 
 
Oil sales
$
810,655

 
$
709,813

 
$
336,931

Natural gas sales
44,556

 
62,325

 
48,868

NGL sales
89,119

 
118,907

 
44,103

Oil and gas sales
$
944,330

 
$
891,045

 
$
429,902