Business Combinations (Tables)

3 Months Ended

Mar. 31, 2013

Business Combinations

Schedule of pro forma results

	Three months ended March 31,
	2013		2012
Revenues	412,794		318,415
Income before provision for income taxes	16,162		14,241
Net income attributable to Primoris	9,718		8,746
Weighted average common shares outstanding:
Basic	51,456		51,145
Diluted	51,467		51,386
Earnings per share:
Basic	$	0.19	$	0.17
Diluted	$	0.19	$	0.17