Property and Equipment (Tables)

12 Months Ended

Dec. 31, 2018

Property and Equipment [Abstract]

Schedule of net property and equipment

(in thousands)	As of December 31,
	2018			2017
Oil and gas properties:
Proved oil and gas properties	$	347,059		$	114,893
Unproved properties not subject to depletion		5,416			1,947
Accumulated depreciation, depletion, amortization and impairment		(98,604	)		(80,715	)
Net oil and gas properties		253,871			36,125
Pipeline facilities and equipment		12,714			-
Base gas		2,122			-
Furniture and fixtures, computer hardware and software, and other equipment		6,649			1,758
Accumulated depreciation and amortization		(3,922	)		(1,021	)
Net other property, plant and equipment		17,563			737
Total property, plant and equipment, net	$	271,434		$	36,862

Schedule of unproved oil and gas properties

	As of December 31,
(in thousands)	2018		2017
Ventura Basin:
California	$	1,595	$	-
Illinois Basin:
Indiana		432		432
Illinois		136		136
Appalachian Basin:
Kentucky		920		915
Ohio		66		66
Tennessee		1,869		-
West Virginia		398		398
Total unproved properties not subject to depletion	$	5,416	$	1,947