Fair Value Measurements (Tables)

12 Months Ended

Dec. 31, 2019

Fair Value Disclosures [Abstract]

Recurring Fair Value Measurements [Table Text Block]

The following tables set forth our recurring fair value measurements:

	December 31, 2019
	Level 2		Level 3		Effect of Netting		Total
	(In thousands)
Financial assets (liabilities):
Commodity derivatives:
Assets	$	177	$	1,204	$	(748)	$	633
Liabilities	(775)		—		748		(27)
	$	(598)	$	1,204	$	—	$	606

	December 31, 2018
	Level 2		Level 3		Effect of Netting		Total
	(In thousands)
Financial assets (liabilities):
Commodity derivatives:
Assets	$	3,225	$	10,964	$	(1,319)	$	12,870
Liabilities	(1,278)		(334)		1,319		(293)
	$	1,947	$	10,630	$	—	$	12,577

Reconciliations Of Level 3 Fair Value Measurements [Table Text Block]

The following tables are reconciliations of our level 3 fair value measurements: 

	Net Derivatives
	For the Year Ended,
	December 31, 2019		December 31, 2018
	(In thousands)
Beginning of period	$	10,630	$	(206)
Total gains or losses:
Included in earnings	(1,494)		4,159
Settlements	(7,932)		6,677
End of period	$	1,204	$	10,630
Total gains (losses) for the period included in earnings attributable to the change in unrealized loss relating to assets still held at end of period	$	(9,426)	$	10,836

Schedule Of Quantitative Information About Unobservable Inputs [Table Text Block]

The following table provides quantitative information about our Level 3 unobservable inputs at December 31, 2019:

Commodity (1)	Fair Value		Valuation Technique	Unobservable Input	Range
	(In thousands)
Natural gas three-way collar	$	1,204	Discounted cash flow	Forward commodity price curve	$0.00 - $0.39

 _________________________

1.The commodity contracts detailed in this category include non-exchange-traded natural gas three-way collars that are valued based on NYMEX. The forward pricing range represents the low and high price expected to be received within the settlement period.