Segment Data

Summarized operating results for our reportable segments are shown in the following table (net of inter-segment transfers):



	First Quarter
(In thousands)	2018			2017
Revenues
Fluids systems	$	177,379		$	136,050
Mats and integrated services	49,914			22,641
Total revenues	$	227,293		$	158,691

Operating income (loss)
Fluids systems	$	10,477		$	6,352
Mats and integrated services	12,086			6,402
Corporate office	(8,725		)	(9,008		)
Operating income	$	13,838		$	3,746

The following table presents further disaggregated revenues for the Fluids Systems segment:



	First Quarter
(In thousands)	2018		2017
United States	$	92,469	$	65,620
Canada	23,072		19,655
Total North America	115,541		85,275
Latin America	7,914		9,060
Total Western Hemisphere	123,455		94,335

EMEA	51,435		40,508
Asia Pacific	2,489		1,207
Total Eastern Hemisphere	53,924		41,715

Total Fluids Systems revenues	$	177,379	$	136,050

The following table presents further disaggregated revenues for the Mats and Integrated Services segment:



	First Quarter
(In thousands)	2018		2017
Mat rental and services	$	40,116	$	19,361
Mat sales	9,798		3,280
Total Mats and Integrated Services revenues	$	49,914	$	22,641

The Mats and Integrated Services segment includes the impact of the WSG acquisition completed in November 2017. Mats and Integrated Services segment revenues from non-E&P markets represented approximately 50% and 56% of our segment revenues for the first quarter of 2018 and 2017, respectively.