Acquisitions and Divestitures (Tables)

9 Months Ended

Sep. 30, 2018

Business Acquisition, Pro Forma Information, Nonrecurring Adjustment [Line Items]

Schedule of fair value of business acquired

	Amount   (in thousands)
Fair value of Carbon common shares transferred as consideration	$	8,326
Fair value of NCI		16,466
Fair value of previously held interest		7,244
Fair value of business acquired	$	32,036

Schedule of assets acquired and liabilities assumed

	Amount  (in thousands)
Cash	$	275
Accounts receivable:
Joint interest billings and other		690
Receivable - related party		1,610
Prepaid expense, deposits, and other current assets		1,723
Oil and gas properties:
Proved		56,477
Unproved		1,495
Other property and equipment, net		877
Other long-term assets		475
Accounts payable and accrued liabilities		(6,054	)
Commodity derivative liability - short-term		(916	)
Commodity derivative liability - long-term		(1,729	)
Asset retirement obligations - short-term		(384	)
Asset retirement obligations - long-term		(2,537	)
Subordinated Notes, related party, net		(8,874	)
Senior Revolving Notes, related party		(11,000	)
Notes payable		(92	)
Total net assets acquired	$	32,036

Schedule of unaudited pro-forma consolidated results

	Unaudited Pro Forma Consolidated Results For Three Months Ended  September 30,						Unaudited Pro Forma  Consolidated Results For Nine Months Ended  September 30,
(in thousands, except per share amounts)	2018			2017			2018			2017
Revenue	$	12,742		$	11,227		$	33,256		$	35,122
Net (loss) income before non-controlling interests		(455	)		(1,518	)		5,232			13,969
Net (loss) income attributable to non-controlling interests		270			16			(2,334	)		92
Net (loss) income attributable to controlling interests	$	(725	)	$	(1,534	)	$	7,566		$	13,877
Net income per share (basic)	$	(0.09	)	$	(0.27	)	$	1.00		$	2.49
Net income per share (diluted)	$	(0.10	)	$	(0.27	)	$	.96		$	2.14

Seneca Acquisition [Member]

Business Acquisition, Pro Forma Information, Nonrecurring Adjustment [Line Items]

Schedule of assets acquired and liabilities assumed

Identifiable assets acquired:
Proved oil and gas properties	$	37,386
Unproved oil and gas properties		100
Other property and equipment		545
Intangible assets		300
Total identified assets	$	38,331