Business Segment Information

We have three reportable business segments: Well Intervention, Robotics and Production Facilities. Our U.S., U.K. and Brazil well intervention operating segments are aggregated into the Well Intervention business segment for financial reporting purposes. Our Well Intervention segment includes our vessels and equipment used to perform well intervention services primarily in the U.S. Gulf of Mexico, North Sea and Brazil. Our Well Intervention segment also includes IRSs, some of which we rent out on a stand-alone basis, and SILs. Our well intervention vessels include the Q4000, the Q5000, the Seawell, the Well Enhancer and the chartered Siem Helix 1 and Siem Helix 2 vessels. The Siem Helix 1 commenced its operations for Petrobras in mid-April 2017. Our Robotics segment includes ROVs, trenchers and ROVDrills designed to complement offshore construction and well intervention services, and currently operates four chartered ROV support vessels, including the Grand Canyon III that went into service for us in May 2017. Our Production Facilities segment includes the HP I, the HFRS and our investment in Independence Hub that is accounted for under the equity method, and previously included our former ownership interest in Deepwater Gateway that we sold in February 2016 (Note 5). All material intercompany transactions between the segments have been eliminated.

We evaluate our performance primarily based on operating income of each reportable segment. Certain financial data by reportable segment are summarized as follows (in thousands):



	Three Months Ended September 30,						Nine Months Ended September 30,
	2017			2016			2017			2016
Net revenues —
Well Intervention	$	111,522		$	108,287		$	299,219		$	214,262
Robotics	47,049			48,897			102,078			119,805
Production Facilities	16,380			17,128			47,965			54,567
Intercompany elimination	(11,691		)	(13,067		)	(31,145		)	(29,083		)
Total	$	163,260		$	161,245		$	418,117		$	359,551

Income (loss) from operations —
Well Intervention	$	16,906		$	24,413		$	37,356		$	7,187
Robotics	(9,365		)	(94		)	(37,313		)	(21,667		)
Production Facilities	7,660			8,312			20,724			25,225
Corporate and other	(10,633		)	(10,288		)	(29,296		)	(28,784		)
Intercompany elimination	199			(873		)	641			(542		)
Total	$	4,767		$	21,470		$	(7,888	)	$	(18,581	)

Intercompany segment amounts are derived primarily from equipment and services provided to other business segments at rates consistent with those charged to third parties. Intercompany segment revenues are as follows (in thousands):



	Three Months Ended September 30,				Nine Months Ended September 30,
	2017		2016		2017		2016

Well Intervention	$	3,765	$	2,898	$	8,033	$	5,740
Robotics	7,926		10,169		23,112		23,343
Total	$	11,691	$	13,067	$	31,145	$	29,083

Segment assets are comprised of all assets attributable to each reportable segment. Corporate and other includes all assets not directly identifiable with our business segments, most notably the majority of our cash and cash equivalents. The following table reflects total assets by reportable segment (in thousands):



	September 30, 2017		December 31, 2016

Well Intervention	$	1,774,821	$	1,596,517
Robotics	179,777		186,901
Production Facilities	141,739		158,192
Corporate and other	270,153		305,331
Total	$	2,366,490	$	2,246,941