Quarterly Financial Information (in thousands, except per share amounts) (unaudited)

12 Months Ended

Dec. 31, 2011

Quarterly Financial Information (in thousands, except per share amounts) (unaudited)

18.

Quarterly Financial Information (in thousands, except per share amounts) (unaudited)


	1st Quarter			2nd Quarter		3rd Quarter		4th Quarter
2010
Operating revenues	$	271,598		$	306,992	$	378,663	$	505,678
Operating income		7,831			45,757		52,509		94,828
Income from continuing operations, net of income taxes		4,186			29,528		29,374		54,810
Loss from discontinued operations, net of income taxes		—			—		—		(956	)
Net income		4,186			29,528		29,374		53,854
Basic income (loss) per common share:
From continuing operations	$	0.03		$	0.19	$	0.19	$	0.36
From discontinued operations	$	0.00		$	0.00	$	0.00	$	(0.01	)
Net income	$	0.03		$	0.19	$	0.19	$	0.35
Diluted income (loss) per common share:
From continuing operations	$	0.03		$	0.19	$	0.19	$	0.35
From discontinued operations	$	0.00		$	0.00	$	0.00	$	(0.01	)
Net income	$	0.03		$	0.19	$	0.19	$	0.35
2011
Operating revenues	$	567,404		$	600,064	$	673,828	$	724,647
Operating income		117,547			131,860		132,294		143,900
Income from continuing operations, net of income taxes		71,619			81,638		81,928		87,595
Loss from discontinued operations, net of income taxes		(367	)		—		—		—
Net income		71,252			81,638		81,928		87,595
Basic income (loss) per common share:
From continuing operations	$	0.46		$	0.53	$	0.53	$	0.56
From discontinued operations	$	0.00		$	0.00	$	0.00	$	0.00
Net income	$	0.46		$	0.53	$	0.53	$	0.56
Diluted income (loss) per common share:
From continuing operations	$	0.46		$	0.52	$	0.53	$	0.56
From discontinued operations	$	0.00		$	0.00	$	0.00	$	0.00
Net income	$	0.46		$	0.52	$	0.53	$	0.56

As discussed in Note 2, the Company exited the drilling and completion fluids services business in January 2010 and sold a recently acquired wireline business in January 2011. The results of operations related to those businesses have been reclassified and presented as discontinued operations in the quarterly financial information above.

- Definition

The entire disclosure for the quarterly financial data in the annual financial statements. The disclosure may include a tabular presentation of financial information for each fiscal quarter for the current and previous year, including revenues, gross profit, income or loss before extraordinary items and earnings per share data. It also includes an indication if the information in the note is unaudited, comments on the aggregate effect of year-end adjustments, and an explanation of matters or transactions that affect comparability or are pertinent to an understanding of the information furnished.

+ References+ Details