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Fair value measurements (Tables)
9 Months Ended
Sep. 30, 2014
Fair Value Disclosures [Abstract]  
Schedule of fair value hierarchy for assets and liabilities measured at fair value on a recurring basis
The following presents the Company’s fair value hierarchy for assets and liabilities measured at fair value on a recurring basis for the periods presented:
(in thousands)
 
Level 1
 
Level 2
 
Level 3
 
Total fair
value
As of September 30, 2014:
 
 

 
 

 
 

 
 

Commodity derivatives
 
$

 
$
21,753

 
$

 
$
21,753

Deferred premiums
 

 

 
(11,055
)
 
(11,055
)
Total
 
$

 
$
21,753

 
$
(11,055
)
 
$
10,698

(in thousands)
 
Level 1
 
Level 2
 
Level 3
 
Total fair
value
As of December 31, 2013:
 
 
 
 
 
 
 
 
Commodity derivatives
 
$

 
$
94,741

 
$

 
$
94,741

Deferred premiums
 

 

 
(12,684
)
 
(12,684
)
Total
 
$

 
$
94,741

 
$
(12,684
)
 
$
82,057

Actual cash payments required for deferred premium contracts
The following table presents actual cash payments required for deferred premium contracts in place as of September 30, 2014, and for the calendar years following:
(in thousands)
 
 
Remaining 2014
 
$
1,820

2015
 
5,166

2016
 
358

2017
 
3,651

2018
 
339

  Total
 
$
11,334

Summary of changes in assets (liability) classified as Level 3 measurements
A summary of the changes in assets classified as Level 3 measurements for the periods presented are as follows:
 

Three months ended September 30,

Nine months ended September 30,
(in thousands)

2014

2013

2014

2013
Balance of Level 3 at beginning of period

$
(9,025
)

$
(19,742
)

$
(12,684
)

$
(24,709
)
Change in net present value of deferred premiums for derivatives

(50
)

(102
)

(170
)

(384
)
Total purchases and settlements:












Purchases

(3,800
)



(3,800
)


Settlements(1)

1,820


4,881


5,599


10,130

Balance of Level 3 at end of period

$
(11,055
)

$
(14,963
)

$
(11,055
)

$
(14,963
)
______________________________________________________________________________
(1)
The settlement amounts for each of the three and nine months ended September 30, 2013 include $2.2 million in deferred premiums, which were settled net with the early terminated contracts from which they derive. There were no comparable amounts during the three or nine months ended September 30, 2014.