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ACQUISITIONS (Tables)
3 Months Ended
Mar. 31, 2016
Pennsauken Pipeline  
Business Acquisition [Line Items]  
Schedule of purchase price allocated to tangible and intangible assets acquired and liabilities assumed
The purchase price has been allocated to tangible and intangible assets acquired and liabilities assumed as follows (in thousands):
Property, plant and equipment
$
5,287

Goodwill
2,372

Environmental liabilities
(2,372
)
Allocated purchase price
$
5,287

ExxonMobil Pipeline  
Business Acquisition [Line Items]  
Schedule of purchase price allocated to tangible and intangible assets acquired and liabilities assumed
The purchase price has been allocated to tangible and intangible assets acquired and liabilities assumed as follows (in thousands):
Property, plant and equipment
$
4,040

Goodwill
8,165

Asset retirement obligation
(4,200
)
Environmental liabilities
(293
)
  Allocated purchase price
$
7,712