Fixed Assets

3 Months Ended

Mar. 31, 2014

Fixed Assets And Asset Retirement Obligations [Abstract]

Fixed Assets And Asset Retirement Obligations

4. Fixed Assets

Fixed Assets

Fixed assets consisted of the following:

	March 31, 2014			December 31, 2013
Pipelines and related assets	$	419,282		$	338,920
Machinery and equipment	176,256			173,092
Transportation equipment	18,666			19,140
Marine vessels	557,848			554,679
Land, buildings and improvements	31,260			30,170
Office equipment, furniture and fixtures	5,372			5,633
Construction in progress	178,764			183,037
Other	27,995			23,303
Fixed assets, at cost	1,415,443			1,327,974
Less: Accumulated depreciation	(211,689		)	(199,230		)
Net fixed assets	$	1,203,754		$	1,128,744

Our depreciation expense for the periods presented was as follows:

	Three Months Ended March 31,
	2014		2013
Depreciation expense	$	15,277	$	10,491