Property, Plant and Equipment, net

12 Months Ended

Dec. 31, 2013

5. Property, Plant and Equipment, net

Property, plant and equipment, net, consisted of the following (in thousands):

	December 31,
	2013			2012
Compression equipment, facilities and other fleet assets	$	4,304,019		$	4,205,924
Land and buildings	197,778			186,410
Transportation and shop equipment	288,042			260,258
Other	181,411			161,439
	4,971,250			4,814,031
Accumulated depreciation	(2,150,978		)	(1,975,312		)
Property, plant and equipment, net	$	2,820,272		$	2,838,719

Depreciation expense was $312.4 million, $328.1 million and $331.5 million in 2013, 2012 and 2011, respectively. Assets under construction of $130.5 million and $146.9 million were primarily included in compression equipment, facilities and other fleet assets at December 31, 2013 and 2012, respectively. We capitalized $0.3 million, $1.2 million and $1.5 million of interest related to construction in process during 2013, 2012 and 2011, respectively.

- Definition

The entire disclosure for long-lived, physical assets used in the normal conduct of business and not intended for resale. Includes, but is not limited to, accounting policies and methodology, roll forwards, depreciation, depletion and amortization expense, including composite depreciation, accumulated depreciation, depletion and amortization expense, useful lives and method used, income statement disclosures, assets held for sale and public utility disclosures.

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