Oil and Natural Gas Interests (Tables)

9 Months Ended

Sep. 30, 2019

Oil And Gas Exploration And Production Industries Disclosures [Abstract]

Schedule of oil and natural gas interest

Oil and natural gas interest include the following (in thousands):

	As of
	September 30,			December 31,
	2019			2018
Oil and natural gas interests:
Subjection to depletion	$	310,863		$	307,438
Not subjection to depletion		36,812			19,335
Gross oil and natural gas interests		347,675			326,773
Accumulated depletion and impairment		(127,229	)		(117,605	)
Oil and natural gas interests, net	$	220,446		$	209,168