15. Quarterly Financial Information (Unaudited)

Summarized quarterly financial data for the years ended December 31, 2019 and 2018 are presented in the following tables. In the following tables, the sum of basic and diluted earnings per share for the four quarters may differ from the annual amounts due to the required method of computing weighted average number of shares in the respective periods. Additionally, due to the effect of rounding, the sum of the individual quarterly earnings per share amounts may not equal the calculated year-to-date earnings per share amount.


	2019 Quarters
	First		Second		Third		Fourth		Total

Total revenues	$	158,875	$	168,493	$	160,808	$	140,238	$	628,414
Income from operations		48,492		51,450		47,123		36,085		183,150
Net income		48,446		40,750		35,833		31,274		156,303
Less: net income attributable to non-controlling interest		21,639		19,342		16,494		13,216		70,691
Net income attributable to Cactus Inc.		26,807		21,408		19,339		18,058		85,612
Earnings per Class A share—basic	$	0.69	$	0.46	$	0.41	$	0.38	$	1.90
Earnings per Class A share—diluted	$	0.59	$	0.45	$	0.41	$	0.38	$	1.88
Dividends declared per common share	$	—	$	—	$	—	$	0.09	$	0.09


		2018 Quarters
	First		Second		Third		Fourth		Total

Total revenues	$	115,110	$	138,543	$	150,658	$	139,824	$	544,135
Income from operations		35,217		46,487		52,133		43,864		177,701
Net income		26,408		41,542		43,648		38,683		150,281
Less: pre-IPO net income attributable to Cactus LLC		13,648		—		—		—		13,648
Less: net income attributable to non-controlling interest		9,007		29,208		24,976		21,759		84,950
Net income attributable to Cactus Inc.		3,753		12,334		18,672		16,924		51,683
Earnings per Class A share—basic	$	0.14	$	0.47	$	0.52	$	0.45	$	1.60
Earnings per Class A share—diluted	$	0.14	$	0.46	$	0.52	$	0.44	$	1.58