Property, Plant and Equipment

12 Months Ended

Dec. 31, 2016

Property, Plant and Equipment

Property, Plant and Equipment

Note 8 Property, Plant and Equipment

The major components of our property, plant and equipment are as follows:

	December 31,
	2016		2015
	(In thousands)
Land	$	46,319	$	19,757
Buildings		115,502		126,285
Drilling, workover and well-servicing rigs, and related equipment		12,638,749		12,243,811
Marine transportation and supply vessels		—		10,271
Oilfield hauling and mobile equipment		274,137		286,838
Other machinery and equipment		181,069		175,687
Oil and gas properties		12,286		16,386
Construction-in-process (1)		288,673		457,422
	$	13,556,735	$	13,336,457
Less: accumulated depreciation and amortization		(7,289,152)		(6,308,655)
	$	6,267,583	$	7,027,802

(1) Relates primarily to amounts capitalized for new or substantially new drilling rigs and related equipment that were under construction and had not yet been placed in service as of December 31, 2016 or 2015.

Depreciation expense included in depreciation and amortization expense in our consolidated statements of income (loss) totaled $855.4 million, $951.4 million and $1.1 billion during 2016, 2015 and 2014, respectively.

Repair and maintenance expense included in direct costs in our consolidated statements of income (loss) totaled $151.4 million, $304.7 million and $603.4 million during 2016, 2015 and 2014, respectively.

Interest costs of $6.7 million, $20.4 million and $24.4 million were capitalized during 2016, 2015 and 2014, respectively.