CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS AND COMPREHENSIVE INCOME - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Revenues:
Retail revenues	$ 128,618	$ 177,805	$ 294,978	$ 417,959
Net asset optimization (expense) revenues	(82)	(56)	239	2,496
Total Revenues	128,536	177,749	295,217	420,455
Operating Expenses:
Retail cost of revenues	65,605	158,759	184,428	354,014
General and administrative	21,331	37,247	47,007	66,723
Depreciation and amortization	8,010	10,312	16,806	22,467
Total Operating Expenses	94,946	206,318	248,241	443,204
Operating income	33,590	(28,569)	46,976	(22,749)
Other (expense)/income:
Interest expense	(1,193)	(1,995)	(2,746)	(4,218)
Interest and other income	53	494	213	683
Total other expenses	(1,140)	(1,501)	(2,533)	(3,535)
Income before income tax expense	32,450	(30,070)	44,443	(26,284)
Income tax expense (benefit)	5,673	(4,586)	7,598	(3,545)
Net income (loss)	26,777	(25,484)	36,845	(22,739)
Less: Net income (loss) attributable to non-controlling interests	15,618	(18,369)	21,207	(16,406)
Net income (loss) attributable to Spark Energy, Inc. stockholders	11,159	(7,115)	15,638	(6,333)
Less: Dividends on Series A Preferred Stock	2,039	2,027	3,539	4,054
Net income (loss) attributable to stockholders of Class A common stock	9,120	(9,142)	12,099	(10,387)
Other comprehensive income (loss), net of tax:
Currency translation loss		(63)	0	(98)
Other comprehensive loss	0	(63)	0	(98)
Comprehensive income (loss)	26,777	(25,547)	36,845	(22,837)
Less: Comprehensive income (loss) attributable to non-controlling interests	15,618	(18,407)	21,207	(16,464)
Comprehensive income (loss) attributable to Spark Energy, Inc. stockholders	$ 11,159	$ (7,140)	$ 15,638	$ (6,373)
Net income (loss) attributable to Spark Energy, Inc. per share of Class A common stock
Basic (in dollars per share)	$ 630	$ (0.64)	$ 840	$ (0.73)
Diluted (in dollars per share)	$ 620	$ (0.73)	$ 830	$ (0.73)
Weighted average shares of Class A common stock outstanding
Basic (in shares)	14,558	14,246	14,469	14,191
Diluted (in shares)	14,763	35,046	14,569	34,991