Property and Equipment, Net (Tables)

12 Months Ended

Dec. 31, 2019

Property, Plant and Equipment [Abstract]

Schedule of net property and equipment

	As of December 31,
(in thousands)	2019			2018
Oil and gas properties:
Proved oil and gas properties	$	351,488		$	347,059
Unproved properties		4,872			5,416
Accumulated depreciation, depletion, amortization and impairment		(109,344	)		(98,604	)
Oil and gas properties, net		247,016			253,871
Pipeline facilities and equipment		12,814			12,714
Base gas		1,937			2,122
Furniture and fixtures, computer hardware and software, and other equipment		6,762			6,649
Accumulated depreciation and amortization		(5,529	)		(3,922	)
Other property and equipment, net		15,984			17,563
Total property and equipment, net	$	263,000		$	271,434

Schedule of unproved oil and gas properties

	As of December 31,
(in thousands)	2019		2018
Ventura Basin:
California	$	1,602	$	1,595
Illinois Basin:
Indiana		432		432
Illinois		136		136
Appalachian Basin:
Kentucky		461		920
Ohio		66		66
Tennessee		1,869		1,869
West Virginia		306		398
Total unproved properties	$	4,872	$	5,416