OIL AND NATURAL GAS INTERESTS (Tables)

3 Months Ended

Mar. 31, 2020

Extractive Industries [Abstract]

Aggregate capitalized costs related to oil and natural gas production activities

Oil and natural gas interests include the following:

	March 31,			December 31,
	2020			2019
	(in thousands)
Oil and natural gas interests:
Subject to depletion	$	1,345,093		$	1,316,692
Not subject to depletion	1,587,992			1,551,767
Gross oil and natural gas interests	2,933,085			2,868,459
Accumulated depletion and impairment	(351,116		)	(326,474		)
Oil and natural gas interests, net	2,581,969			2,541,985
Land	5,688			5,688
Property, net of accumulated depletion and impairment	$	2,587,657		$	2,547,673
Balance of costs not subject to depletion:
Incurred in 2020	$	54,062
Incurred in 2019	827,680
Incurred in 2018	459,094
Incurred in 2017	247,156
Total not subject to depletion	$	1,587,992