Commodity Derivatives (Tables)

12 Months Ended

Dec. 31, 2018

Derivatives, Fair Value [Line Items]

Schedule of swap derivative agreements

	Natural Gas Swaps				Natural Gas Collars (1)				Oil Swaps (1)
			Weighted				Weighted				Weighted				Weighted
			Average				Average Price		WTI		Average		Brent		Average
Year	MMBtu		Price (a)		MMBtu		Range (a)		Bbl		Price (b)		Bbl		Price (c)
2019		15,055,000	$	2.85		836,000	$	2.60 – $3.19		218,597	$	53.50		148,086	$	66.82
2020		12,433,000	$	2.73		1,018,000	$	2.50 – $2.70		121,147	$	55.37		151,982	$	66.03
2021		2,598,000	$	2.69		-	$	-		-	$	-		86,341	$	67.12

(1)	Includes 100% of Carbon California’s outstanding derivative hedges at December 31, 2018, and not our proportionate share.
(a)	NYMEX Henry Hub Natural Gas futures contract for the respective period.
(b)	NYMEX Light Sweet Crude West Texas Intermediate futures contract for the respective period.
(c)	Brent future contracts for the respective period.

Schedule of fair value of the derivatives recorded

(in thousands)	As of December 31,
	2018		2017
Commodity derivative contracts:
Commodity derivative asset	$	3,517	$	215
Commodity derivative asset – non-current	$	3,505	$	10

Schedule of realized and unrealized gains and losses

(in thousands)	For the year ended  December 31,
	2018			2017
Commodity derivative contracts:
Settlement (loss) gains	$	(3,848	)	$	770
Unrealized gains		8,742			2,158
Total settlement and unrealized gains, net	$	4,894		$	2,928

Schedule of fair value amounts of all derivative instruments assets and liabilities

The following table summarizes the location and fair value amounts of all derivative instruments in the consolidated balance sheet, as well as the gross recognized derivative assets, liabilities and amounts offset in the consolidated balance sheet as of December 31, 2018.

								Net
		Gross						Recognized
		Recognized			Gross			Fair Value
		Assets/			Amounts			Assets/
	Balance Sheet Classification	Liabilities			Offset			Liabilities
Commodity derivative assets:	Commodity derivative	$	4,605		$	(1,088	)	$	3,517
	Other non-current assets		4,690			(1,185	)		3,505
Total derivative assets		$	9,295		$	(2,273	)	$	7,022
Commodity derivative liabilities:
	Commodity derivative	$	(1,088	)	$	1,088		$	-
	Commodity derivative: non-current		(1,185	)		1,185			-
Total derivative liabilities		$	(2,273	)	$	2,273		$	-

The following table summarizes the location and fair value amounts of all derivative instruments in the consolidated balance sheet, as well as the gross recognized derivative assets, liabilities and amounts offset in the consolidated balance sheet as of December 31, 2017.

								Net
		Gross						Recognized
		Recognized			Gross			Fair Value
		Assets/			Amounts			Assets/
	Balance Sheet Classification	Liabilities			Offset			Liabilities
Commodity derivative assets:
	Commodity derivative	$	624		$	(409	)	$	215
	Other non-current assets		250			(240	)		10
Total derivative assets		$	874		$	(649	)	$	225
Commodity derivative liabilities:
	Commodity derivative	$	(409	)	$	409		$	-
	Commodity derivative: non-current		(240	)		240			-
Total derivative liabilities		$	(649	)	$	649		$	-