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Fair Value Measurements (Tables)
 3 Months Ended
Mar. 31, 2017
Fair Value Disclosures [Abstract]  
Recurring Fair Value Measurements
The following tables set forth our recurring fair value measurements:
 
 
March 31, 2017
 
 
Level 2
 
Level 3
 
Effect
of Netting
 
Net Amounts Presented
 
 
(In thousands)
Financial assets (liabilities):
 
 
 
 
 
 
 
 
Commodity derivatives:
 
 
 
 
 
 
 
 
Assets
 
$
778

 
$
1,779

 
$
(2,557
)
 
$
—

Liabilities
 
(5,888
)
 
(2,381
)
 
2,557

 
(5,712
)
 
 
$
(5,110
)
 
$
(602
)
 
$
—

 
$
(5,712
)
 
 
December 31, 2016
 
 
Level 2
 
Level 3
 
 
Effect
of Netting
 
Net Amounts Presented
 
 
(In thousands)
Financial assets (liabilities):
 
 
 
 
 
 
 
 
 
Commodity derivatives:
 
 
 
 
 
 
 
 
 
Assets
 
$
878

 
$
43

 
 
$
(544
)
 
$
377

Liabilities
 
(15,358
)
 
(7,165
)
 
 
544

 
(21,979
)
 
 
$
(14,480
)
 
$
(7,122
)
 
 
$
—

 
$
(21,602
)
Reconciliations Of Level 3 Fair Value Measurements
The following table is a reconciliation of our level 3 fair value measurements: 
 
 
Net Derivatives
 
 
Three Months Ended
 
 
March 31,
 
 
2017
 
2016
 
 
(In thousands)
Beginning of period
 
$
(7,122
)
 
$
9,094

Total gains or losses (realized and unrealized):
 
 
 
 
Included in earnings (1)
 
5,903

 
5,988

Settlements
 
617

 
(5,099
)
End of period
 
$
(602
)
 
$
9,983

Total gains for the period included in earnings attributable to the change in unrealized gain relating to assets still held at end of period
 
$
6,520

 
$
889

_______________________
(1)
Commodity derivatives are reported in the Unaudited Condensed Consolidated Statements of Operations in gain on derivatives.
Schedule Of Quantitative Information About Unobservable Inputs
The following table provides quantitative information about our Level 3 unobservable inputs at March 31, 2017:
Commodity (1)
 
Fair Value
 
Valuation Technique
 
Unobservable Input
 
Range
 
 
(In thousands)
 
 
 
 
 
 
Oil three-way collars
 
$
1,378

 
Discounted cash flow
 
Forward commodity price curve
 
($1.75) - $3.85
Natural gas collar
 
$
(1,136
)
 
Discounted cash flow
 
Forward commodity price curve
 
($0.57) - $0.15
Natural gas three-way collars
 
$
(844
)
 
Discounted cash flow
 
Forward commodity price curve
 
($0.54) - $0.55
 _______________________
(1)
The commodity contracts detailed in this category include non-exchange-traded crude oil and natural gas collars and three-way collars that are valued based on NYMEX. The forward pricing range represents the low and high price expected to be paid or received within the settlement period.