Fair Value Measurements (Tables)

9 Months Ended

Sep. 30, 2019

Fair Value Disclosures [Abstract]

Assets and Liabilities Measured at Fair Value on Recurring Basis

The following tables summarize the valuation of those assets and (liabilities) as of the dates presented:

	September 30, 2019
	Fair Value			Fair Value Measurement Classification
Description	Measurement			Level 1		Level 2			Level 3
Assets:
Commodity derivative assets – current	$	18,214		$	—	$	18,214		$	—
Commodity derivative assets – noncurrent	$	4,311		$	—	$	4,311		$	—
Liabilities:
Commodity derivative liabilities – current	$	(4,308	)	$	—	$	(4,308	)	$	—
Commodity derivative liabilities – noncurrent	$	(12	)	$	—	$	(12	)	$	—

	December 31, 2018
	Fair Value			Fair Value Measurement Classification
Description	Measurement			Level 1		Level 2			Level 3
Assets:
Commodity derivative assets – current	$	34,932		$	—	$	34,932		$	—
Commodity derivative assets - noncurrent	$	10,100		$	—	$	10,100		$	—
Liabilities:
Commodity derivative liabilities – current	$	(991	)	$	—	$	(991	)	$	—
Commodity derivative liabilities – noncurrent	$	—		$	—	$	—		$	—