XML 20 R9.htm IDEA: XBRL DOCUMENT v3.21.1
Properties and Equipment, Net
 3 Months Ended
Mar. 31, 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)March 31,
2021		December 31,
2020
Proved oil and gas properties$7,196,548 $7,068,605 
Unproved oil and gas properties 43,060 49,829 
Land, buildings and other equipment 92,858 92,566 
 7,332,466 7,211,000 
Accumulated depreciation, depletion and amortization(3,257,038)(3,166,394)
 $4,075,428 $4,044,606 
At March 31, 2021, the Company did not have any projects that had exploratory well costs capitalized for a period of greater than one year after drilling.