PROPERTY, PLANT AND EQUIPMENT

PROPERTY, PLANT AND EQUIPMENT

Property, plant and equipment, at cost, consisted of the following:



	Estimated Useful Lives			December 31,
	Estimated Useful Lives			2011			2010
	(Years)			(Thousands of Dollars)
Land		—		$	134,900		$	123,805
Land and leasehold improvements	10	-	35	108,508			105,055
Buildings	15	-	40	66,792			64,528
Pipelines, storage and terminals	20	-	35	3,298,188			3,044,538
Refining equipment	20	-	35	512,466			447,848
Rights-of-way	20	-	40	107,104			101,538
Construction in progress		—		185,347			134,007
Total				4,413,305			4,021,319
Less accumulated depreciation and amortization				(982,837		)	(833,862		)
Property, plant and equipment, net				$	3,430,468		$	3,187,457

Capitalized interest costs added to property, plant and equipment totaled $5.4 million, $3.7 million and $1.7 million for the years ended December 31, 2011, 2010 and 2009, respectively. Depreciation and amortization expense for property, plant and equipment totaled $157.2 million, $144.2 million and $136.1 million for the years ended December 31, 2011, 2010 and 2009, respectively.

- Definition

The entire disclosure for 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. This disclosure may include property plant and equipment accounting policies and methodology, a schedule of property, plant and equipment gross, additions, deletions, transfers and other changes, depreciation, depletion and amortization expense, net, accumulated depreciation, depletion and amortization expense and useful lives, income statement disclosures, assets held for sale and public utility disclosures.

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