XML 21 R10.htm IDEA: XBRL DOCUMENT v3.21.2
Properties and Equipment, Net
 9 Months Ended
Sep. 30, 2021
Property, Plant and Equipment [Abstract]  
Properties and Equipment, Net Properties and Equipment, Net
Properties and equipment, net are comprised of the following:
(In thousands)September 30,
2021		December 31,
2020
Proved oil and gas properties$7,531,941 $7,068,605 
Unproved oil and gas properties 28,610 49,829 
Land, buildings and other equipment 96,245 92,566 
 7,656,796 7,211,000 
Accumulated depreciation, depletion and amortization(3,430,882)(3,166,394)
 $4,225,914 $4,044,606 
At September 30, 2021, the Company did not have any projects with exploratory well costs capitalized for a period of greater than one year after drilling.