Consolidated Statements of Operations Statement (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended
	Mar. 31, 2013	Mar. 31, 2012
REVENUE:
Services	$ 182,481	$ 162,669
Product sales	78,446	71,522
Total Revenue	260,927	234,191
OPERATING EXPENSES:
Cost of Services, Excluding Depreciation, Depletion, and Amortization	110,153	98,010
Cost of product sales, exclusive of depreciation expense shown below	53,492	51,130
General and Administrative Expense, Excluding Depreciation	12,809	10,174
Depreciation	5,723	5,596
Amortization	302	287
Other (income), net	(589)	(4,912)
OPERATING INCOME	79,037	73,906
Interest expense	2,269	2,190
Income before income tax expense	76,768	71,716
Income Tax Expense (Benefit)	20,036	17,786
Net income	56,732	53,930
Net Income (Loss) Attributable to Non-controlling Interest		(21)
Net income attributable to Core Laboratories N.V.		53,951
EARNINGS PER SHARE INFORMATION:
Basic earnings per share attributable to Core Laboratories N.V.	$ 1.22	$ 1.13
Diluted earnings per share attributable to Core Laboratories N.V.	$ 1.22	$ 1.13
Cash dividends per share	$ 0.32	$ 0.28
WEIGHTED AVERAGE COMMON SHARES OUTSTANDING:
Basic	46,201	47,606
Diluted	46,493	47,945
Noncontrolling Interest [Member]
OPERATING EXPENSES:
Net Income (Loss) Attributable to Non-controlling Interest	216
Retained Earnings [Member]
OPERATING EXPENSES:
Net income attributable to Core Laboratories N.V.	$ 56,516