XML 75 R100.htm IDEA: XBRL DOCUMENT v3.19.3.a.u2
Supplemental Disclosure of Oil and Natural Gas Operations (Unaudited) - Schedule of Proved Developed and Proved Undeveloped Reserves (Details)
12 Months Ended
Dec. 31, 2019
MBoe
MBbls
MMcf
Dec. 31, 2018
MBoe
MBbls
MMcf
Dec. 31, 2017
MBoe
MBbls
MMcf
Dec. 31, 2016
MBoe
MBbls
MMcf
Proved Developed and Undeveloped Reserves:        
Beginning of the year | MBoe 521,719 416,447 222,347  
Extensions and discoveries | MBoe 138,750 159,778 160,340  
Revisions of previous estimates | MBoe (14,291) 2,283 9,205  
Purchases of reserves in place | MBoe 554 5,613 55,814  
Divestures of reserves in place | MBoe (3,076) (22,465) (6,467)  
Production | MBoe (51,322) (39,937) (24,792)  
End of the year | MBoe 592,334 521,719 416,447  
Proved developed reserves (energy) | MBoe 381,744 311,315 209,399 106,097
Proved undeveloped reserves (energy) | MBoe 210,590 210,404 207,048 116,250
Crude Oil (MBbls)        
Proved Developed and Undeveloped Reserves:        
Beginning of the year 294,446 248,531 136,536  
Extensions and discoveries 84,186 102,274 99,916  
Revisions of previous estimates (19,269) (22,047) (709)  
Purchases of reserves in place 354 3,379 33,017  
Divestures of reserves in place (1,590) (12,335) (3,839)  
Production (31,664) (25,356) (16,390)  
End of the year 326,463 294,446 248,531  
Proved developed reserves (volume) 206,849 170,526 119,591 61,133
Proved undeveloped reserves (volume) 119,614 123,920 128,940 75,403
Natural Gas (MMcf)        
Proved Developed and Undeveloped Reserves:        
Beginning of the year 131,933 92,632 48,543  
Extensions and discoveries 32,457 35,722 33,426  
Revisions of previous estimates (5,043) 16,164 4,522  
Purchases of reserves in place 107 1,240 12,121  
Divestures of reserves in place (788) (5,472) (1,468)  
Production (11,002) (8,353) (4,512)  
End of the year 147,664 131,933 92,632  
Proved developed reserves (volume) 96,202 81,000 49,751 24,306
Proved undeveloped reserves (volume) 51,462 50,933 42,881 24,237
NGLs (MBbls)        
Proved Developed and Undeveloped Reserves:        
Beginning of the year | MMcf 572,038 451,703 223,605  
Extensions and discoveries | MMcf 132,642 130,692 161,989  
Revisions of previous estimates | MMcf 60,128 48,992 32,342  
Purchases of reserves in place | MMcf 556 5,963 64,055  
Divestures of reserves in place | MMcf (4,189) (27,947) (6,962)  
Production | MMcf (51,933) (37,365) (23,326)  
End of the year | MMcf 709,242 572,038 451,703  
Proved developed reserves (volume) | MMcf 472,160 358,733 240,337 123,946
Proved undeveloped reserves (volume) | MMcf 237,082 213,305 211,366 99,659