Property and Equipment (Tables)

9 Months Ended

Sep. 30, 2019

Property, Plant and Equipment [Abstract]

Schedule of property and equipment

Property and equipment is stated at cost and consisted of the following:

	September 30, 2019			December 31, 2018
	(In thousands)
Oil and gas properties:
Proved properties	$	4,827,304		$	4,236,489
Unproved properties	898,855			759,472
Total oil and gas properties	5,726,159			4,995,961
Accumulated depletion	(1,945,170		)	(1,551,097		)
Oil and gas properties, net	3,780,989			3,444,864
Other property	59,515			51,987
Accumulated depreciation	(41,468		)	(37,150		)
Other property, net	18,047			14,837
Property and equipment, net	$	3,799,036		$	3,459,701