Fixed Assets (Tables)

3 Months Ended

Mar. 31, 2013

Fixed Assets And Asset Retirement Obligations [Abstract]

Fixed assets consisted of the following:



	March 31, 2013			December 31, 2012
Pipelines and related assets	$	242,806		$	226,831
Machinery and equipment	91,535			87,502
Transportation equipment	20,916			21,170
Marine vessels	298,077			298,054
Land, buildings and improvements	15,748			15,606
Office equipment, furniture and fixtures	5,072			4,964
Construction in progress	66,470			52,541
Other	19,268			16,557
Fixed assets, at cost	759,892			723,225
Less: Accumulated depreciation	(168,147		)	(157,944		)
Net fixed assets	$	591,745		$	565,281

Depreciation Expense

Our depreciation expense for the periods presented was as follows:



	Three Months Ended March 31,
	2013		2012
Depreciation expense	$	10,495	$	8,495

- Definition

Tabular disclosure of the useful life and salvage value of long-lived, physical assets that are used in the normal conduct of business to produce goods and services and not intended for resale. Examples include land, buildings, machinery and equipment, and other types of furniture and equipment including, but not limited to, office equipment, furniture and fixtures, and computer equipment and software.

+ References+ Details