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Goodwill and Other Intangible Assets (Tables)
 12 Months Ended
Dec. 31, 2013
Goodwill And Other Intangible Assets [Abstract]  
Goodwill by Segment
Goodwill relates to the following segment (in thousands):
 
December 31,
2013
 
December 31,
2012
Crude
$
28,322

 
$
—

SemGas
23,839

 
—

SemMexico
9,860

 
9,884

Total Goodwill
$
62,021

 
$
9,884
Reconciliation of Goodwill
Changes in goodwill balances during the period from December 31, 2010 to December 31, 2013 are shown below (in thousands):
Balance, December 31, 2010
$
107,823

Impairments (Note 7)
(47,804
)
Contribution of SemStream assets to NGL Energy (Note 7)
(50,071
)
Currency translation adjustments
(495
)
Balance, December 31, 2011
9,453

Currency translation adjustments
431

Balance, December 31, 2012
9,884

Barcas acquisition (Note 6)
28,322

MMGS acquisition (Note 6)
23,839

Currency translation adjustments
(24
)
Balance, December 31, 2013
$
62,021
Other Intangible Assets by Segment
Other intangible assets relate to the following segments (in thousands):
 
December 31,
2013
 
December 31,
2012
Crude
$
5,775

 
$
—

SemGas
163,144

 
—

SemMexico
5,888

 
7,549

Corporate and other
31

 
36

Total other intangible assets
$
174,838

 
$
7,585
Reconciliation of Other Intangible Assets
Changes in other intangible asset balances are shown below (in thousands):
Balance, December 31, 2010
$
32,264

Amortization
(4,664
)
Impairment (Note 7)
(5,048
)
Contribution of SemStream assets to NGL Energy (Note 7)
(12,408
)
Currency translation adjustments
(1,194
)
Balance, December 31, 2011
8,950

Amortization
(2,017
)
Currency translation adjustments
652

Balance, December 31, 2012
7,585

Amortization
(6,018
)
Barcas acquisition (Note 6)
6,930

MMGS acquisition (Note 6)
166,332

Currency translation adjustments
9

Balance, December 31, 2013
$
174,838
Future Amortization of Other Intangible Assets
We estimate that future amortization of other intangible assets will be as follows (in thousands):
For year ending:
 
December 31, 2014
$
13,113

December 31, 2015
11,687

December 31, 2016
9,164

December 31, 2017
8,996

December 31, 2018
8,863

Thereafter
123,015

Total estimated amortization expense
$
174,838