Summarized information on our consolidated results of operations for the quarters during the year ended December 31, 2015 is shown below (in thousands, except per share amounts):



	First Quarter		Second Quarter			Third Quarter			Fourth Quarter			Total
Total revenues	$	298,310	$	377,226		$	397,065		$	382,493		$	1,455,094
Loss (gain) on disposal or impairment, net	1,058		1,372			(951		)	9,993			11,472
Other operating costs and expenses	301,206		352,549			376,973			371,512			1,402,240
Total expenses	302,264		353,921			376,022			381,505			1,413,712
Earnings from equity method investments	20,559		23,903			16,237			20,687			81,386
Gain on issuance of common units by equity method investee	—		5,897			136			352			6,385
Operating income	16,605		53,105			37,416			22,027			129,153
Other expenses, net	6,087		9,809			17,829			19,082			52,807
Income from continuing operations before income taxes	10,518		43,296			19,587			2,945			76,346
Income tax expense	4,742		14,861			10,006			3,921			33,530
Income from continuing operations	5,776		28,435			9,581			(976		)	42,816
Loss from discontinued operations, net of income taxes	—		(2		)	(1		)	(1		)	(4		)
Net income	5,776		28,433			9,580			(977		)	42,812
Less: net income (loss) attributable to noncontrolling interests	4,310		5,136			4,707			(1,661		)	12,492
Net income attributable to SemGroup	$	1,466	$	23,297		$	4,873		$	684		$	30,320
Earnings per share—basic	$	0.03	$	0.53		$	0.11		$	0.02		$	0.69
Earnings per share—diluted	$	0.03	$	0.53		$	0.11		$	0.02		$	0.69

Summarized information on our consolidated results of operations for the quarters during the year ended December 31, 2014 is shown below (in thousands, except per share amounts):



	First Quarter			Second Quarter			Third Quarter			Fourth Quarter			Total
Total revenues	$	498,883		$	482,224		$	594,235		$	547,237		$	2,122,579
Loss (gain) on disposal or impairment, net	(58		)	19,315			1,376			11,959			32,592
Other operating costs and expenses	478,264			471,863			575,936			530,150			2,056,213
Total expenses	478,206			491,178			577,312			542,109			2,088,805
Earnings from equity method investments	14,962			19,187			14,223			15,827			64,199
Gain on issuance of common units by equity method investee	8,127			—			18,772			2,121			29,020
Operating income	43,766			10,233			49,918			23,076			126,993
Other expenses (income), net	7,497			29,489			(6,368		)	(2,196		)	28,422
Income (loss) from continuing operations before income taxes	36,269			(19,256		)	56,286			25,272			98,571
Income tax expense (benefit)	16,526			(6,672		)	24,090			12,569			46,513
Income (loss) from continuing operations	19,743			(12,584		)	32,196			12,703			52,058
Income (loss) from discontinued operations, net of income taxes	(5		)	—			—			4			(1		)
Net income (loss)	19,738			(12,584		)	32,196			12,707			52,057
Less: net income attributable to noncontrolling interests	6,150			5,025			6,934			4,633			22,817
Net income (loss) attributable to SemGroup	$	13,588		$	(17,609	)	$	25,262		$	8,074		$	29,240
Earnings (loss) per share—basic	$	0.32		$	(0.41	)	$	0.59		$	0.19		$	0.69
Earnings (loss) per share—diluted	$	0.29		$	(0.41	)	$	0.59		$	0.18		$	0.68