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Properties and Equipment, Net
 9 Months Ended
Sep. 30, 2020
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,
2020		December 31,
2019
Proved oil and gas properties$6,983,502 $6,508,443 
Unproved oil and gas properties 58,329 133,475 
Land, buildings and other equipment 108,325 104,700 
 7,150,156 6,746,618 
Accumulated depreciation, depletion and amortization(3,115,476)(2,890,912)
 $4,034,680 $3,855,706 
At September 30, 2020, the Company did not have any projects that had exploratory well costs capitalized for a period of greater than one year after drilling.