Fixed Assets (Tables)

9 Months Ended

Sep. 30, 2013

Fixed Assets And Asset Retirement Obligations [Abstract]

Schedule Of Fixed Assets

Fixed assets consisted of the following:

	September 30, 2013			December 31, 2012
Pipelines and related assets	$	268,650		$	226,831
Machinery and equipment	110,710			87,502
Transportation equipment	19,751			21,170
Marine vessels	529,891			298,054
Land, buildings and improvements	20,002			15,606
Office equipment, furniture and fixtures	5,436			4,964
Construction in progress	180,892			52,541
Other	20,645			16,557
Fixed assets, at cost	1,155,977			723,225
Less: Accumulated depreciation	(186,640		)	(157,944		)
Net fixed assets	$	969,337		$	565,281

Depreciation Expense

Our depreciation expense for the periods presented was as follows:

	Three Months Ended September 30,				Nine Months Ended September 30,
	2013		2012		2013		2012
Depreciation expense	$	11,365	$	9,202	$	32,930	$	27,246