Via Renewables (VIASP) 10-Q 10 Nov 16 2016 Q3 Quarterly report Financial data

Document and Entity Information

Document and Entity Information Document - shares	9 Months Ended
	Sep. 30, 2016	Nov. 07, 2016
Document and Entity Information [Abstract]
Document Type	10-Q
Amendment Flag	false
Document Period End Date	Sep. 30, 2016
Document Fiscal Year Focus	2,016
Document Fiscal Period Focus	Q3
Trading Symbol	SPKE
Entity Registrant Name	Spark Energy, Inc.
Entity Central Index Key	1,606,268
Current Fiscal Year End Date	--12-31
Entity Filer Category	Smaller Reporting Company
Common Class A
Class of Stock [Line Items]
Entity Common Stock, Shares Outstanding		6,496,559
Common Class B
Class of Stock [Line Items]
Entity Common Stock, Shares Outstanding		10,224,742

CONDENSED CONSOLIDATED BALANCE

CONDENSED CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands		Sep. 30, 2016	Dec. 31, 2015
Current assets:
Cash and cash equivalents	[1]	$ 16,907	$ 4,474
Accounts receivable, net of allowance for doubtful accounts of $1.9 million as of September 30, 2016 and December 31, 2015, respectively		79,744	59,936
Accounts receivable—affiliates		2,836	1,840
Inventory		3,725	3,665
Fair value of derivative assets		1,536	605
Customer acquisition costs, net		15,565	13,389
Customer relationships, net		19,042	6,627
Prepaid assets	[2]	1,515	700
Deposits		8,158	7,421
Other current assets		10,717	4,023
Total current assets		159,745	102,680
Property and equipment, net		4,866	4,476
Fair value of derivative assets		318	0
Customer acquisition costs, net		4,531	3,808
Customer relationships, net		24,478	6,802
Non-current deferred tax assets		56,101	23,380
Goodwill		79,556	18,379
Other assets		8,136	2,709
Total assets		337,731	162,234
Current liabilities:
Accounts payable		34,964	29,732
Accounts payable—affiliates		2,598	1,962
Accrued liabilities		31,744	12,245
Fair value of derivative liabilities		13,762	10,620
Current portion of Senior Credit Facility		49,269	27,806
Contingent consideration for acquisitions - current		11,325	500
Current portion of note payable		13,445	0
Other current liabilities		3,662	1,323
Total current liabilities		160,769	84,188
Long-term liabilities:
Fair value of derivative liabilities		1,467	618
Long-term payable pursuant to tax receivable agreement—affiliates		50,625	20,713
Long-term portion of Senior Credit Facility		0	14,592
Non-current deferred tax liability		0	853
Convertible subordinated notes to affiliate		6,542	6,339
Contingent consideration for acquisitions		7,611	0
Other long-term liabilities		0	1,612
Total liabilities		227,014	128,915
Commitments and contingencies (Note 11)
Preferred stock, par value $0.01 per share, 20,000,000 shares authorized, zero issued and outstanding at September 30, 2016 and December 31, 2015		0	0
Additional paid-in capital		23,476	12,565
Accumulated other comprehensive loss		(33)	0
Retained deficit		(681)	(1,366)
Total stockholders' equity		22,930	11,338
Non-controlling interest in Spark HoldCo, LLC		87,787	21,981
Total equity		110,717	33,319
Total liabilities and stockholders' equity		337,731	162,234
Common Class A
Common stock		65	31
Common Class B
Common stock		$ 103	$ 108
[1]	Financial information has been recast to include results attributable to the acquisition of the Major Energy Companies from an affiliate on August 23, 2016. See Notes 2 and 3 "Basis of Presentation" and "Acquisitions," respectively, for further discussion.
[2]	Prepaid assets includes prepaid assets—affiliates of less than $1 and $210 as of September 30, 2016 and December 31, 2015, respectively. See Note 12 "Transaction with Affiliates" for further discussion.

CONDENSED CONSOLIDATED BALANCE3

CONDENSED CONSOLIDATED BALANCE SHEETS (Parenthetical) - USD ($) $ in Thousands	Sep. 30, 2016	Dec. 31, 2015
Statement of Financial Position [Abstract]
Prepaid assets - affiliates (less than)	$ 1	$ 210
Allowance for doubtful accounts	$ 1,900	$ 1,900
Preferred stock par value per share (in dollars per share)	$ 0.01	$ 0.01
Preferred stock shares authorized (shares)	20,000,000	20,000,000
Preferred stock shares issued (shares)	0	0
Preferred stock shares outstanding (shares)	0	0
Common Class A
Common stock par value per share (in dollars per share)	$ 0.01	$ 0.01
Common stock shares authorized (shares)	120,000,000	120,000,000
Common stock shares issued (shares)	6,496,559	3,118,623
Common stock shares outstanding (shares)	6,496,559	3,118,623
Common Class B
Common stock par value per share (in dollars per share)	$ 0.01	$ 0.01
Common stock shares authorized (shares)	60,000,000	60,000,000
Common stock shares issued (shares)	10,224,742	10,750,000
Common stock shares outstanding (shares)	10,224,742	10,750,000

CONDENSED CONSOLIDATED STATEMEN

CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS AND COMPREHENSIVE INCOME - USD ($) shares in Thousands, $ in Thousands		3 Months Ended				9 Months Ended
		Sep. 30, 2016	[1]	Sep. 30, 2015	[2]	Sep. 30, 2016	[1]	Sep. 30, 2015	[2]
Revenues:
Retail revenues		$ 157,986		$ 91,812		$ 378,063		$ 261,996
Net asset optimization (expenses) revenues	[3]	108		(545)		(42)		1,317
Total Revenues		158,094		91,267		378,021		263,313
Operating Expenses:
Retail cost of revenues	[4]	122,830		60,967		248,593		176,000
General and administrative	[5]	18,009		15,493		55,188		43,909
Depreciation and amortization		8,295		7,557		23,337	[6]	17,873	[7]
Total Operating Expenses		149,134		84,017		327,118		237,782
Operating income		8,960		7,250		50,903		25,531
Other (expense)/income:
Interest expense		(1,270)		(800)		(2,855)		(1,415)
Interest and other income		240		5		340		326
Total other expenses		(1,030)		(795)		(2,515)		(1,089)
Income before income tax expense		7,930		6,455		48,388		24,442
Income tax expense		1,129		580		6,852		1,599
Net income		6,801		5,875		41,536	[6],[8]	22,843	[7]
Less: Net income attributable to non-controlling interests		6,618		4,561		34,839		18,959
Net income attributable to Spark Energy, Inc. stockholders		183		1,314		6,697		3,884
Other comprehensive loss, net of tax:
Foreign currency translation adjustment for equity method investee		(12)		0		(73)		0
Other comprehensive loss		(12)		0		(73)		0
Comprehensive income		6,789		5,875		41,463		22,843
Less: Comprehensive income attributable to non-controlling interests		6,611		4,561		34,799		18,959
Comprehensive income attributable to Spark Energy, Inc. stockholders		$ 178		$ 1,314		$ 6,664		$ 3,884
Net income (loss) attributable to Spark Energy, Inc. per share of Class A common stock
Basic (in dollars per share)		$ 0.03		$ 0.42		$ 1.23		$ 1.27
Diluted (in dollars per share)		$ (0.04)		$ 0.31		$ 1.05		$ 1.09
Weighted average shares of Class A common stock outstanding
Basic (in shares)		6,491		3,097		5,434		3,053
Diluted (in shares)		7,055		14,232		6,050		13,948
[1]	Financial information has been recast to include results attributable to the acquisition of Major Energy Companies by an affiliate on April 15, 2016. See Notes 2 and 3 "Basis of Presentation" and "Acquisitions," respectively, for further discussion.
[2]	Financial information has been recast to include results attributable to the acquisition of Oasis Power Holdings LLC from an affiliate on May 12, 2015. See Notes 2 "Basis of Presentation" for further discussion.
[3]	Net asset optimization (expenses) revenues includes asset optimization revenues—affiliates of $0 and $263 for the three months ended September 30, 2016 and 2015, respectively, and asset optimization revenues—affiliates cost of revenues of $0 and $3,382 for the three months ended September 30, 2016 and 2015, respectively and asset optimization revenues—affiliates of $154 and $928 for the nine months ended September 30, 2016 and 2015, respectively, and asset optimization revenue—affiliates cost of revenues of $1,633 and $9,589 for the nine months ended September 30, 2016 and 2015, respectively.
[4]	Retail cost of revenues includes retail cost of revenues—affiliates of $0 for the three months ended September 30, 2016 and 2015, respectively, and less than $100 for the nine months ended September 30, 2016 and 2015 respectively.
[5]	General and administrative includes general and administrative expense—affiliates of $3,078 and $0 for the three months ended September 30, 2016, and 2015, respectively, and $11,521 and $100 for the nine months ended September 30, 2016 and 2015, respectively.
[6]	Financial information has been recast to include results attributable to the acquisition of the Major Energy Companies from an affiliate on August 23, 2016. See Notes 2 and 3 "Basis of Presentation" and "Acquisitions," respectively, for further discussion.
[7]	Financial information has been recast to include results attributable to the acquisition of Oasis Power Holdings LLC by an affiliate on May 12, 2015. See Notes 2 "Basis of Presentation" for further discussion.
[8]	Financial information has been recast to include results attributable to the acquisition of the Major Energy Companies from an affiliate on August 23, 2016. See Notes 2 and 3 "Basis of Presentation" and "Acquisitions," respectively, for further discussion.

CONDENSED CONSOLIDATED STATEME5

CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS AND COMPREHENSIVE INCOME (Parenthetical) - USD ($) $ in Thousands		3 Months Ended				9 Months Ended
		Sep. 30, 2016		Sep. 30, 2015		Sep. 30, 2016		Sep. 30, 2015
Optimization revenues	[2]	$ 108	[1]	$ (545)	[3]	$ (42)	[1]	$ 1,317	[3]
Retail cost of revenues (less than)	[4]	122,830	[1]	60,967	[3]	248,593	[1]	176,000	[3]
General and administrative	[5]	18,009	[1]	15,493	[3]	55,188	[1]	43,909	[3]
Affiliates
Optimization revenues		0		263		154		928
Optimization cost of revenues - affiliates		0		3,382		1,633		9,589
Retail cost of revenues (less than)		0		0		100		100
General and administrative		$ 3,078		$ 0		$ 11,521		$ 100
[1]	Financial information has been recast to include results attributable to the acquisition of Major Energy Companies by an affiliate on April 15, 2016. See Notes 2 and 3 "Basis of Presentation" and "Acquisitions," respectively, for further discussion.
[2]	Net asset optimization (expenses) revenues includes asset optimization revenues—affiliates of $0 and $263 for the three months ended September 30, 2016 and 2015, respectively, and asset optimization revenues—affiliates cost of revenues of $0 and $3,382 for the three months ended September 30, 2016 and 2015, respectively and asset optimization revenues—affiliates of $154 and $928 for the nine months ended September 30, 2016 and 2015, respectively, and asset optimization revenue—affiliates cost of revenues of $1,633 and $9,589 for the nine months ended September 30, 2016 and 2015, respectively.
[3]	Financial information has been recast to include results attributable to the acquisition of Oasis Power Holdings LLC from an affiliate on May 12, 2015. See Notes 2 "Basis of Presentation" for further discussion.
[4]	Retail cost of revenues includes retail cost of revenues—affiliates of $0 for the three months ended September 30, 2016 and 2015, respectively, and less than $100 for the nine months ended September 30, 2016 and 2015 respectively.
[5]	General and administrative includes general and administrative expense—affiliates of $3,078 and $0 for the three months ended September 30, 2016, and 2015, respectively, and $11,521 and $100 for the nine months ended September 30, 2016 and 2015, respectively.

CONDENSED CONSOLIDATED STATEME6

CONDENSED CONSOLIDATED STATEMENT OF CHANGES IN EQUITY - 9 months ended Sep. 30, 2016 - USD ($) shares in Thousands, $ in Thousands		Total		Total Stockholders' Equity	Common StockClass A Common Stock	Common StockClass B Common Stock	Accumulated Other Comprehensive Income (Loss)	Additional Paid-in Capital	Retained Earnings (Deficit)	Non-controlling Interest
Balance at beginning of period (in shares) at Dec. 31, 2015					3,119	10,750
Balance at beginning of period at Dec. 31, 2015		$ 33,319		$ 11,338	$ 31	$ 108	$ 0	$ 12,565	$ (1,366)	$ 21,981
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Stock based compensation		1,737		1,737				1,737
Restricted stock unit vesting (in shares)					153
Restricted stock unit vesting		1,062		1,062	$ 2			1,060
Excess tax benefit related to restricted stock vesting		186		186				186
Consolidated net income (1)	[3]	41,536	[1],[2]	6,697					6,697	34,839
Foreign currency translation adjustment for equity method investee		(73)	[1]	(33)			(33)			(40)
Beneficial conversion feature		243		243				243
Distributions paid to non-controlling unit holders		(26,284)								(26,284)
Contribution of the Major Energy Companies in excess of cash	[2]	6,040								6,040
Dividends paid to Class A common stockholders		(6,012)		(6,012)					(6,012)
Proceeds from disgorgement of stockholder short-swing profits		941		941				941
Tax impact from tax receivable agreement upon exchange of units of Spark HoldCo, LLC to shares of Class A Common Stock		4,028		4,028				4,028
Exchange of shares of Class B common stock to shares of Class A common stock (in shares)					(3,225)	(3,225)
Exchange of shares of Class B common stock to shares of Class A common stock		0		2,716	$ 32	$ (32)		2,716		(2,716)
Issuance of Class B Common Stock		53,994		27		$ 27				53,967
Issuance of Class B Common Stock (shares)						2,700
Balance at end of period (in shares) at Sep. 30, 2016					6,497	10,225
Balance at end of period at Sep. 30, 2016		$ 110,717		$ 22,930	$ 65	$ 103	$ (33)	$ 23,476	$ (681)	$ 87,787
[1]	Financial information has been recast to include results attributable to the acquisition of Major Energy Companies by an affiliate on April 15, 2016. See Notes 2 and 3 "Basis of Presentation" and "Acquisitions," respectively, for further discussion.
[2]	Financial information has been recast to include results attributable to the acquisition of the Major Energy Companies from an affiliate on August 23, 2016. See Notes 2 and 3 "Basis of Presentation" and "Acquisitions," respectively, for further discussion.
[3]	Financial information has been recast to include results attributable to the acquisition of the Major Energy Companies from an affiliate on August 23, 2016. See Notes 2 and 3 "Basis of Presentation" and "Acquisitions," respectively, for further discussion.

CONDENSED CONSOLIDATED STATEME7

CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2016	[2]	Sep. 30, 2015
Cash flows from operating activities:
Net income	$ 41,536	[1],[3]	$ 22,843	[4],[5]
Adjustments to reconcile net income to net cash flows provided by operating activities:
Depreciation and amortization expense	32,743		17,873
Deferred income taxes	1,408		872	[4]
Stock based compensation	4,027		1,992	[4]
Amortization of deferred financing costs	465		295	[4]
Change in fair value of CenStar Earnout	843		0	[4]
Bad debt expense	842		6,082	[4]
Loss on derivatives, net	(2,887)		6,118	[4]
Current period cash settlements on derivatives, net	(18,693)		(15,120)	[4]
Other	314		21	[4]
Changes in assets and liabilities:
Decrease in restricted cash	0		707	[4]
Decrease in accounts receivable	21,147		18,566	[4]
(Increase) decrease in accounts receivable—affiliates	(997)		(216)	[4]
Decrease in inventory	568		2,978	[4]
Increase in customer acquisition costs	(10,234)		(17,725)	[4]
(Increase) decrease in prepaid and other current assets	(923)		11,110	[4]
Increase in intangible assets—customer relationships	0		(2,776)	[4]
Decrease (increase) in other assets	733		(256)	[4]
Decrease in accounts payable and accrued liabilities	(6,490)		(14,610)	[4]
Increase in accounts payable—affiliates	636		849	[4]
Decrease in other current liabilities	(1,783)		(1,534)	[4]
(Decrease) increase in other non-current liabilities	(1,612)		1,606	[4]
Net cash provided by operating activities	61,643		39,675	[4]
Cash flows from investing activities:
Purchases of property and equipment	(1,763)		(1,255)	[4]
Acquisition of CenStar and Oasis net assets	0		(41,234)	[4]
Acquisition of Major Energy Companies and Provider Companies net assets	(30,507)		0	[4]
Payment of CenStar Earnout	(1,343)		0	[4]
Investment in eREX Spark Marketing Joint Venture	(562)		(330)	[4]
Net cash used in investing activities	(34,175)		(42,819)	[4]
Cash flows from financing activities:
Borrowings on the Senior Credit Facility	47,923		52,225	[4]
Payments on the Senior Credit Facility	(44,601)		(38,000)	[4]
Contributions from NuDevco	0		129	[4]
Proceeds from issuance of Class B common stock	13,995		0	[4]
Proceeds from disgorgement of stockholders short-swing profits	941		0	[4]
Issuance of convertible subordinated notes to affiliate	0		7,075	[4]
Restricted stock vesting	(1,183)		(265)	[4]
Excess tax benefit related to restricted stock vesting	185		0	[4]
Payment of dividends to Class A common stockholders	(6,012)		(3,333)	[4]
Payment of distributions to non-controlling unitholders	(26,283)		(11,691)	[4]
Net cash (used in) provided by financing activities	(15,035)		6,140	[4]
Increase in cash and cash equivalents	12,433		2,996	[4]
Cash and cash equivalents—beginning of period	4,474		4,359	[4]
Cash and cash equivalents—end of period	16,907		7,355	[4]
Non-cash items:
Contingent consideration - earnout obligations incurred in connection with the Provider Companies and Major Energy Companies acquisitions	18,936		0	[4]
Assumption of legal liability in connection with the Major Energy Companies acquisition	5,000		0
Contribution of the Major Energy Companies in excess of cash	6,040		0
Installment consideration incurred in connection with the Provider Companies acquisition	3,023		0	[4]
Property and equipment purchase accrual	64		11	[4]
Liability due to tax receivable agreement	(29,912)		0	[4]
Tax benefit from tax receivable agreement	33,124		0	[4]
Cash paid during the period for:
Interest	1,450		1,061	[4]
Taxes	3,783		157	[4]
Common Class B
Non-cash items:
Value of shares issued	$ 40,000		$ 0	[4]
[1]	Financial information has been recast to include results attributable to the acquisition of Major Energy Companies by an affiliate on April 15, 2016. See Notes 2 and 3 "Basis of Presentation" and "Acquisitions," respectively, for further discussion.
[2]	Financial information has been recast to include results attributable to the acquisition of the Major Energy Companies from an affiliate on August 23, 2016. See Notes 2 and 3 "Basis of Presentation" and "Acquisitions," respectively, for further discussion.
[3]	Financial information has been recast to include results attributable to the acquisition of the Major Energy Companies from an affiliate on August 23, 2016. See Notes 2 and 3 "Basis of Presentation" and "Acquisitions," respectively, for further discussion.
[4]	Financial information has been recast to include results attributable to the acquisition of Oasis Power Holdings LLC by an affiliate on May 12, 2015. See Notes 2 "Basis of Presentation" for further discussion.
[5]	Financial information has been recast to include results attributable to the acquisition of Oasis Power Holdings LLC from an affiliate on May 12, 2015. See Notes 2 "Basis of Presentation" for further discussion.

Formation and Organization

Formation and Organization	9 Months Ended
	Sep. 30, 2016
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Formation and Organization	1. Formation and Organization Organization Spark Energy, Inc. ("Spark Energy," "Company," "we" or "us") is an independent retail energy services company that provides residential and commercial customers in competitive markets across the United States with an alternative choice for natural gas and electricity. The Company is a holding company whose sole material asset consists of units in Spark HoldCo, LLC (“Spark HoldCo”). Spark HoldCo owns all of the outstanding membership interests or shares in each of Spark Energy, LLC (“SE”), Spark Energy Gas, LLC (“SEG”), Oasis Power Holdings, LLC ("Oasis"), CenStar Energy Corp. ("CenStar"), Electricity Maine, LLC, Electricity N.H., LLC and Provider Power Mass, LLC (collectively, the "Provider Companies"); and Major Energy Services, LLC, Major Energy Electric Services, LLC, and Respond Power, LLC (collectively, the "Major Energy Companies"), the operating subsidiaries through which the Company operates. The Company is the sole managing member of Spark HoldCo, is responsible for all operational, management and administrative decisions relating to Spark HoldCo’s business and consolidates the financial results of Spark HoldCo and its subsidiaries. SE is a licensed retail electric provider in multiple states. SE provides retail electricity services to end-use retail customers, ranging from residential and small commercial customers to large commercial and industrial users. SE was formed on February 5, 2002 under the Texas Revised Limited Partnership Act (as recodified by the TBOC) and was converted to a Texas limited liability company on May 21, 2014. SEG is a retail natural gas provider and asset optimization business competitively serving residential, commercial and industrial customers in multiple states. SEG was formed on January 17, 2001 under the Texas Revised Limited Partnership Act (as recodified by the TBOC) and was converted to a Texas limited liability company on May 21, 2014. Oasis, through its operating subsidiary, Oasis Power LLC, is a retail energy provider formed on August 28, 2009 as a limited liability company under the TBOC. We acquired Oasis on July 31, 2015 from an affiliate. CenStar is a retail energy provider incorporated on July 18, 2008 under the New York Business Corporation Law. We acquired CenStar on July 8, 2015. The Provider Companies operate as retail energy providers. Electricity Maine, LLC, Electricity N.H., LLC, and Provider Power Mass, LLC were formed on June 17, 2010, January 20, 2012 and August 22, 2012, respectively, as limited liability companies under the Maine Limited Liability Company Act. We acquired the Provider Companies on August 1, 2016. The Major Energy Companies operate as retail energy providers. Major Energy Services, LLC, Major Energy Electric Services, LLC and Respond Power, LLC were formed on October 11, 2005, September 12, 2007 and July 11, 2008, respectively, as limited liability companies under the New York Limited Liability Company Law. We completed the purchase of all the outstanding membership interests of the Major Energy Companies on August 23, 2016 from an affiliate, as described in Note 2. We are a Delaware corporation formed on April 22, 2014 for the purpose facilitating an initial public offering ("IPO") of our Class A common stock, par value $0.01 per share ("Class A common stock"), and to become the sole managing member of, and to hold an ownership interest in, Spark HoldCo. In connection with our IPO, NuDevco Retail Holdings LLC ("NuDevco Retail Holdings") formed NuDevco Retail, LLC (“NuDevco Retail”), a single member limited liability company, on May 29, 2014, to hold the remaining Spark HoldCo units and shares of our Class B common stock, par value $0.01 per share ("Class B common stock"). In January 2016, Retailco, LLC ("Retailco") succeeded to the interest of NuDevco Retail Holdings of its Class B common stock and an equal number of Spark HoldCo units it held pursuant to a series of transfers. See Note 4 “Equity” for further discussion. W. Keith Maxwell, III is the owner of a majority in voting power of our common stock through his ownership of NuDevco Retail and Retailco. Retailco is a wholly owned subsidiary of TxEx Energy Investments, LLC ("TxEx"), which is wholly owned by Mr. Maxwell. NuDevco Retail is a wholly owned subsidiary of NuDevco Retail Holdings, which is a wholly owned subsidiary of Electric HoldCo, LLC, which is also a wholly owned subsidiary of TxEx. Emerging Growth Company Status As a company with less than $1.0 billion in revenues during its last fiscal year, the Company qualifies as an “emerging growth company” as defined in the Jumpstart Our Business Startups Act of 2012, or the JOBS Act. An emerging growth company may take advantage of specified reduced reporting and other regulatory requirements. The Company will remain an “emerging growth company” until as late as the last day of the Company's 2019 fiscal year, or until the earliest of (i) the last day of the fiscal year in which the Company has $1.0 billion or more in annual revenues; (ii) the date on which the Company becomes a “large accelerated filer” (the fiscal year-end on which the total market value of the Company’s common equity securities held by non-affiliates is $700 million or more as of June 30); (iii) the date on which the Company issues more than $1.0 billion of non-convertible debt over a three -year period. As a result of the Company's election to avail itself of certain provisions of the JOBS Act, the information that the Company provides may be different than what you may receive from other public companies in which you hold an equity interest. Exchange and Registration Rights The Spark HoldCo Limited Liability Company Agreement provides that anytime the Company issues a new share of Class A or Class B common stock (except for issuances of Class A common stock upon an exchange of Class B common stock), Spark HoldCo will concurrently issue a limited liability company unit either to the holder of the Class B common stock or to the Company in the case of the issuance of shares of Class A common stock. As a result, the number of Spark HoldCo units held by the Company always equals the number of shares of Class A common stock outstanding. Each share of Class B common stock, all of which are held by NuDevco Retail and Retailco, has no economic rights but entitles the holder to one vote on all matters to be voted on by stockholders generally. Holders of Class A common stock and Class B common stock vote together as a single class on all matters presented to our stockholders for their vote or approval, except as otherwise required by applicable law or by our certificate of incorporation. NuDevco Retail and Retailco have the right to exchange (the “Exchange Right”) all or a portion of their Spark HoldCo units (together with a corresponding number of shares of Class B common stock) for Class A common stock (or cash at Spark Energy, Inc.’s or Spark HoldCo’s election (the “Cash Option”)) at an exchange ratio of one share of Class A common stock for each Spark HoldCo unit (and corresponding share of Class B common stock) exchanged. In addition, NuDevco Retail and Retailco have the right, under certain circumstances, to cause the Company to register the offer and resale of NuDevco Retail's and Retailco's shares of Class A common stock obtained pursuant to the Exchange Right. Retail Acquisition Co., LLC ("RAC") is entitled to similar registration rights under the CenStar Note and Oasis Note. Refer to Note 7 "Debt" for further discussion.

Basis of Presentation

Basis of Presentation	9 Months Ended
	Sep. 30, 2016
Accounting Policies [Abstract]
Basis of Presentation	2. Basis of Presentation The accompanying interim unaudited condensed consolidated financial statements (“interim statements”) of the Company have been prepared in accordance with accounting principles generally accepted in the United States (“GAAP”) and pursuant to the rules and regulations of the Securities and Exchange Commission (“SEC"), and include all wholly owned subsidiaries. This information should be read in conjunction with our consolidated financial statements and notes contained in our annual report on Form 10-K for the year ended December 31, 2015 . The Company's unaudited condensed consolidated financial statements are presented on a consolidated basis and include all wholly-owned and controlled subsidiaries. We account for investments over which we have significant influence but not a controlling financial interest using the equity method of accounting. The preparation of the financial statements in conformity with GAAP requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent liabilities at the date of the interim financial statements and the reported amounts of revenues and expenses during the reporting period. Actual results could differ from those estimates. Effects on the business, financial condition and results of operations resulting from revisions to estimates are recognized when the facts that give rise to the revision become known. The information furnished herein reflects all normal recurring adjustments that are, in the opinion of management, necessary for a fair presentation of the condensed consolidated financial statements. Operating results for the three and nine months ended September 30, 2016 are not necessarily indicative of the results that may be expected for the full year or for any interim period. Transactions with Affiliates The Company also enters into transactions with and pays certain costs on behalf of affiliates that are commonly controlled by W. Keith Maxwell III, and these affiliates enter into transactions with and pay certain costs on our behalf, in order to reduce risk, reduce administrative expense, create economies of scale, create strategic alliances and supply goods and services among these related parties. These transactions include, but are not limited to, employee benefits provided through the Company’s benefit plans, insurance plans, leased office space, administrative salaries for management due diligence work, recurring management consulting, and accounting, tax, legal, or technology services based on services provided, departmental usage, or headcount, which are considered reasonable by management. As such, the accompanying condensed consolidated financial statements include costs that have been incurred by the Company and then directly billed or allocated to affiliates, and costs that have been incurred by our affiliates and then directly billed or allocated to us, and are recorded net in general and administrative expense on the condensed consolidated statements of operations with a corresponding accounts receivable—affiliates or accounts payable—affiliates, respectively, recorded in the condensed consolidated balance sheets. Additionally, the Company enters into transactions with certain affiliates for sales or purchases of natural gas and electricity, which are recorded in retail revenues, retail cost of revenues and net asset optimization revenues in the condensed consolidated statements of operations with a corresponding accounts receivable—affiliate or accounts payable—affiliate in the condensed consolidated balance sheets. The allocations and related estimates and assumptions are described more fully in Note 12 “Transactions with Affiliates.” Presentation of the Acquisition of Oasis Power Holdings, LLC On May 12, 2015, RAC, an affiliate of the Company, completed the acquisition of 100% of the membership interests of Oasis. Also, on May 12, 2015, Spark HoldCo entered into a Membership Interest Purchase Agreement (the "Oasis Purchase Agreement") with RAC for the purchase of all the membership interests of Oasis. Spark HoldCo completed the acquisition of Oasis from RAC on July 31, 2015. Because the acquisition of Oasis was a transfer of equity interests of entities under common control, the Company's historical financial statements reflect operations of Oasis from May 12, 2015 to July 31, 2015. The unaudited condensed consolidated financial statements for this recast period had been prepared from RAC's historical cost-basis and may not necessarily be indicative of the actual results of operations that would have occurred had the Company owned Oasis during the recast period. Presentation of the Acquisition of Major Energy Companies On April 15, 2016, National Gas & Electric, LLC (“NG&E”), an affiliate of the Company , completed the acquisition of 100% of the membership interests of Major Energy Companies. On May 3, 2016, Spark HoldCo and Retailco entered into a Membership Interest Purchase Agreement (the "Major Purchase Agreement") with NG&E for the purchase of all of the membership interests of the Major Energy Companies. Spark HoldCo and Retailco completed the acquisition of the Major Energy Companies from NG&E on August 23, 2016. Because the acquisition of the Major Energy Companies was a transfer of equity interests of entities under common control, the Company's historical financial statements have been recast in this Form 10-Q to include the results attributable to Major Energy Companies from April 15, 2016. The unaudited condensed consolidated financial statements for this recast period have been prepared from Major Energy Companies' historical cost-basis and may not necessarily be indicative of the actual results of operations that would have occurred had the Company owned the Major Energy Companies during the recast period. Subsequent Events Subsequent events have been evaluated through the date these financial statements are issued. Any material subsequent events that occurred prior to such date have been properly recognized or disclosed in the condensed consolidated financial statements. See Note 14 “Subsequent Events” for further discussion. Reclassification Certain amounts in the prior period financial statements have been reclassified to conform to the current period presentation. These reclassifications had no effect on reported earnings. Recent Accounting Pronouncements In May 2014, the Financial Accounting Standards Board (“FASB") issued Accounting Standards Update (“ASU”) No. 2014-09 ("ASU 2014-09"), Revenue from Contracts with Customers (Topic 606) , which requires an entity to recognize the amount of revenue to which it expects to be entitled for the transfer of promised goods or services to customers. ASU 2014-09 will replace most existing revenue recognition guidance in GAAP. The standard permits the use of either the retrospective or cumulative effect transition method. In August 2015, the FASB issued ASU No. 2015-14, Revenue from Contracts with Customers (Topic 606): Deferral of the Effective Date , which deferred the effective date to periods beginning after December 15, 2017. Early adoption is permitted only as of annual reporting periods beginning after December 15, 2016. The Company is selecting a transition method and determining the effect of the standard on its ongoing financial reporting. The FASB issued additional amendments to ASU 2014-09, as amended by ASU 2015-14: • March 2016 - ASU No. 2016-08, Revenue from Contracts with Customers (Topic 606): Principal versus Agent Considerations (Reporting Revenue Gross versus Net) ("ASU 2016-08"). ASU 2016-08 clarifies the implementation guidance on principal versus agent considerations. The guidance includes indicators to assist an entity in determining whether it controls a specified good or service before it is transferred to customers. • April 2016 - ASU No. 2016-10, Revenue from Contracts with Customers (Topic 606): Identifying Performance Obligations and Licensing ("ASU 2016-10"). ASU 2016-10 covers two specific topics: performance obligations and licensing. This amendment includes guidance on immaterial promised goods or services, shipping or handling activities, separately identifiable performance obligations, functional or symbolic intellectual property licenses, sales-based and usage-based royalties, license restrictions (time, use, geographical) and licensing renewals. • May 2016 - ASU No. 2016-12, Revenue from Contracts with Customers (Topic 606): Narrow Scope Improvements and Practical Expedients ("ASU 2016-12"). ASU 2016-12 clarifies certain core recognition principles including collectability, sales tax presentation, noncash consideration, contract modifications and completed contracts at transition and disclosures no longer required if the full retrospective transition method is adopted. In July 2015, the FASB issued ASU No. 2015-11, Inventory (Topic 330): Simplifying the Measurement of Inventory (“ASU 2015-11”). ASU 2015-11 amends existing guidance to require subsequent measurement of inventory at the lower of cost and net realizable value. Net realizable value is the estimated selling price in the ordinary course of business, less reasonably predictable costs of completion, disposal, and transportation. ASU 2015-11 is effective for fiscal years, and for interim periods within those fiscal years, beginning after December 15, 2016. Earlier application is permitted as of the beginning of an interim or annual reporting period. The Company does not expect the adoption of ASU 2015-11 will have a material effect on its consolidated financial statements. In February 2016, the FASB issued ASU No. 2016-02, Leases (Topic 842) ("ASU 2016-02") . ASU 2016-02 amends existing accounting standards for lease accounting by requiring entities to include substantially all leases on the balance sheet by requiring the recognition of right-of-use assets and lease liabilities for all leases. Entities may elect to not recognize leases with a maximum possible term of less than 12 months. For lessees, a lease is classified as finance or operating and the asset and liability are initially measured at the present value of the lease payments. For lessors, accounting for leases is largely unchanged from previous guidance. ASU 2016-02 also requires qualitative disclosures along with certain specific quantitative disclosures for both lessees and lessors. The amendments in this ASU are effective for fiscal years beginning after December 15, 2018, with early adoption permitted, and are effective for interim periods in the year of adoption. The ASU should be applied using a modified retrospective approach, which requires lessees and lessors to recognize and measure leases at the beginning of the earliest period presented. The Company is currently evaluating the impact of adopting this guidance on its consolidated financial statements. In March 2016, the FASB issued ASU No. 2016-09, Compensation - Stock Compensation (Topic 718) ("ASU 2016-09"). ASU 2016-09 includes provisions intended to simplify various aspects of accounting for shared-based payments, including income tax consequences, classification of awards as either equity or liability and classification on the statement of cash flows. Under current U.S. GAAP, excess tax benefits are currently recorded in equity and presented as a financing activity on the statement of cash flows. Upon adoption, excess tax benefits for share-based payments will be recorded as a reduction of income taxes and reflected in operating cash flows. This guidance is effective for annual and interim reporting periods of public entities beginning after December 15, 2016, with early adoption permitted. The Company is currently evaluating the impact of adopting this guidance on its consolidated financial statements. In June 2016, the FASB issued ASU No. 2016-13, Financial Instruments - Credit Losses (Topic 326): Measurement of Credit Losses on Financial Instruments ("ASU 2016-13"). ASU 2016-13 requires entities to use a current expected credit loss ("CECL") model, which is a new impairment model based on expected losses rather than incurred losses. The model requires financial assets measured at amortized cost be presented at the net amount expected to be collected. The allowance for credit losses is a valuation account that is deducted from the amortized cost basis. The income statement reflects the measurement of credit losses for newly recognized financial assets, as well as the expected credit losses during the period. The measurement of expected losses is based upon historical experience, current conditions, and reasonable and supportable forecasts that affect the collectability of the reported amount. This guidance is effective for interim and annual reporting periods beginning after December 15, 2019, with early adoption permitted for annual reporting periods beginning after December 15, 2018. The Company is currently evaluating the impact of adopting this guidance on its consolidated financial statements. In August 2016, the FASB issued ASU No. 2016-15, Statement of Cash Flows (Topic 230): Classification of Certain Cash Receipts and Cash Payments ("ASU 2016-15"). ASU 2016-15 provides guidance on the presentation and classification of eight specific cash flow issues in the statement of cash flows. Those issues are cash payment for debt prepayment or debt extinguishment costs; settlement of zero-coupon debt instrument or other debt instrument with coupon interest rates that are insignificant in relation to the effective interest rate of the borrowing; contingent consideration payments made after a business combination; cash proceeds from the settlement of insurance claims, cash received from settlement of corporate-owned life insurance policies; distribution received from equity method investees; beneficial interest in securitization transactions; and classification of cash receipts and payments that have aspects of more than one class of cash flows. The guidance is effective for interim and annual reporting periods beginning after December 15, 2017, with early adoption permitted. This ASU should be applied using a retrospective transition method for each period presented. The Company is currently evaluating the impact of adopting this guidance on its consolidated financial statements. In October 2016, the FASB issued ASU No. 2016-16, Income Taxes (Topic 740): Intra-Entity Transfers of Assets Other Than Inventory (“ASU 2016-16”). ASU 2016-16 requires immediate recognition of the current and deferred income tax consequences of intercompany asset transfers other than inventory. Current U.S. GAAP prohibits the recognition of current and deferred income taxes for an intra-entity asset transfer until the asset has been sold to an outside party. This guidance is effective for annual and interim reporting periods of public entities beginning after December 15, 2017, with early adoption permitted as of the beginning of an annual reporting period for which financial statements (interim or annual) have not been issued or made available for issuance. This ASU should be applied using a modified retrospective basis through a cumulative-effect adjustment directly to retained earnings as of the beginning of the period of adoption. The Company is currently evaluating the impact of adopting this guidance on its consolidated financial statements.

Acquisitions

Acquisitions	9 Months Ended
	Sep. 30, 2016
Business Combinations [Abstract]
Acquisitions	3. Acquisitions Acquisition of the Provider Companies On August 1, 2016, the Company and Spark HoldCo completed the purchase of all of the outstanding membership interests of the Provider Companies. The Provider Companies serve electrical customers in Maine, New Hampshire and Massachusetts. The purchase price for the Provider Companies was approximately $34.1 million , which included $1.3 million in working capital, subject to adjustments, and up to $9.0 million in earnout payments, valued at $4.8 million as of the purchase date, to be paid by June 30, 2017, subject to the achievement of certain performance targets (the "Provider Earnout"). See Note 8 "Fair Value Measurements" for further discussion on the Provider Earnout. The purchase price was funded by the issuance of 699,742 shares of Class B common stock (and a corresponding number of Spark HoldCo units) sold to Retailco, valued at $14.0 million based on a value of $20 per share; borrowings under the Senior Credit Facility of $10.6 million ; and $3.8 million in net installment consideration to be paid in ten monthly payments that commenced in August 2016. The first payment of $0.4 million was made with the initial consideration paid. See Note 7 "Debt" for further discussion of the Senior Credit Facility. The acquisition of the Provider Companies has been accounted for under the acquisition method in accordance with ASC 805, Business Combinations (“ASC 805”) . The allocation of purchase consideration was based upon the estimated fair value of the tangible and identifiable intangible assets acquired and liabilities assumed in the acquisition. The allocation was made to major categories of assets and liabilities based on management’s best estimates, supported by independent third-party analyses. The excess of the purchase price over the estimated fair value of tangible and intangible assets acquired and liabilities assumed was allocated to goodwill. The allocation of the purchase consideration is as follows (in thousands): Cash $ 51 Net working capital, net of cash acquired 1,229 Intangible assets - customer relationships and non-compete agreements 24,417 Intangible assets - trademark 529 Goodwill 26,040 Fair value of derivative liabilities (18,163 ) Total $ 34,103 The fair values of intangible assets were measured primarily based on significant inputs that are not observable in the market and thus represent a Level 3 measurement as defined by ASC 820, "Fair Value Measurement" ("ASC 820"). The fair value of derivative liabilities were measured by utilizing readily available quoted market prices and non-exchange-traded contracts fair valued using market price quotations available through brokers or over-the-counter and on-line exchanges and represent a Level 2 measurement as defined by ASC 820. Refer to Note 8 "Fair Value Measurements" for further discussion on the fair values hierarchy. Significant inputs for Level 3 measurements were as follows: Customer relationships. The customer relationships, reflective of the Provider Companies' customer base, were valued using an excess earnings method under the income approach. Using this method, the Company estimated the future cash flows resulting from the existing customer relationships, considering attrition as well as charges for contributory assets, such as net working capital, intangible assets, and assembled workforce. These future cash flows were then discounted using an appropriate risk-adjusted rate of return to arrive at the present value of the expected future cash flows. These customer relationships were bifurcated between unhedged and hedged and will be amortized to depreciation and amortization based on the expected future net cash flows by year and expensed to Retail cost of revenues based on the expected term of the underlying fixed price contract acquired in each reporting period, respectively. Trademark. The fair value of the Provider Companies' trademark is reflective of the value associated with the recognition and reputation of the Provider Companies to its target markets. The fair value of the trademark was estimated using the income approach. Under this approach, the Company estimated the expected trademark royalty revenue by analyzing market royalty rates of comparative trademark agreements and applying an expected royalty rate to estimate royalty revenue. Such estimated royalty revenue was then added to the forecast of the Provider Companies' revenue, which was then discounted using an appropriate risk adjusted rate of return. The trademark is being amortized over the estimated five -year life of the asset on a straight-line basis. Non-compete agreements. The non-compete agreements provide the Company with a certain level of assurance that the Provider Companies' expected earnings stream will not be disrupted by competition from Provider Companies' previous members. The fair value of the non-compete agreements was determined using the differential valuation approach. Under this approach, the Company estimated the present value of expected future cash flows under two scenarios; one scenario assumes the non-compete agreements are in place and the other scenario assumes the absence of non-compete agreements. The resulting difference between the two scenarios is the implied value of the non-compete agreements, which was further adjusted by an estimated probability factor representing the likelihood that previous members of the Provider Companies would be successful competitors. Goodwill. The excess of the purchase consideration over the estimated fair value of the amounts initially assigned to the identifiable assets acquired and liabilities assumed was recorded as goodwill. Goodwill arose on the acquisition of the Provider Companies primarily due the value of its assembled workforce, along with access to new utility service territories. Goodwill recorded in connection with the acquisition of the Provider Companies is deductible for income tax purposes because the Provider Companies was an acquisition of all of the assets of the Provider Companies. The valuation and purchase price allocation of the Provider Companies was based on a preliminary fair value analysis. The Company anticipates adjustments to the working capital amounts that are expected to be finalized prior to the measurement period's expiration. The Company’s condensed consolidated statements of operations for the three and nine months ended September 30, 2016, respectively, included $19.6 million of revenue and $6.9 million of losses from operations related to the operations of the Provider Companies. We have not included pro forma information for the Provider Companies acquisition because it did not have a material impact on our financial position or results of operations. Acquisition of the Major Energy Companies On August 23, 2016, the Company and Spark HoldCo completed the transfer of all of the outstanding membership interests of the Major Energy Companies, which are retail energy companies operating in Connecticut, Illinois, Maryland (including the District of Columbia), Massachusetts, New Jersey, New York, Ohio, and Pennsylvania across 43 utilities, from NG&E in exchange for consideration of $63.2 million , which included $4.3 million in working capital, subject to adjustments; an assumed litigation reserve of $5.0 million , and up to $35.0 million in installment and earnout payments, valued at $13.1 million as of the purchase date, to be paid to the previous members of the Major Energy Companies, in annual installments on March 31, 2017, 2018 and 2019, subject to the achievement of certain performance targets (the “Major Earnout”). In addition, the Company is obligated to issue up to 200,000 shares of Class B common stock (and a corresponding number of Spark HoldCo units) to NG&E, subject to the achievement of certain performance targets, valued at $0.8 million ( 40,718 shares valued at $20 per share) as of the purchase date (the "Stock Earnout"). See Note 8 “Fair Value Measurements” for further discussion on the Major Earnout and Stock Earnout. The purchase price was funded by the issuance of 2,000,000 shares of Class B common stock (and a corresponding number of Spark HoldCo units) valued at $40.0 million based on a value of $20 per share, to NG&E. NG&E is owned by W. Keith Maxwell, III, our Chairman of the Board, founder and majority shareholder. The acquisition of the Major Energy Companies by the Company and Spark HoldCo from NG&E was a transfer of equity interests of entities under common control on August 23, 2016. Accordingly, the assets acquired and liabilities assumed were based on their historical values as of August 23, 2016. NG&E acquired the Major Energy Companies on April 15, 2016 and the fair value of the net assets acquired were as follows (in thousands): Cash $ 17,368 Property and equipment 14 Intangible assets - customer relationships & non-compete agreements 24,271 Other assets - trademarks 4,973 Non-current deferred tax assets 1,042 Goodwill 35,137 Net working capital, net of cash acquired (6,345 ) Fair value of derivative liabilities (7,260 ) Total $ 69,200 The initial working capital estimate paid to the Major Energy Companies by NG&E was $10.3 million . The Company subsequently paid $4.3 million in working capital to NG&E. Approximately $6.0 million was recorded as an equity transaction and treated as a contribution. Goodwill was transferred based on the acquisition of the Major Energy Companies by NG&E on April 15, 2016 and was primarily due to the Major Energy Companies brand strength, established vendor relationships and access to new utility service territories. Goodwill recorded in connection with the transfer of the Major Energy Companies is deductible for income tax purposes. The Major Energy Companies contributed revenues of $47.6 million and earnings of $5.2 million to the Company for the three month period ending September 30, 2016; and contributed revenues of $80.8 million and earnings of $5.6 million to the Company for the nine month period ending September 30, 2016. The following unaudited pro forma revenue and earnings summary presents consolidated information of the Company as if the acquisition had occurred on January 1, 2015 (in thousands): Three Months Ended Nine Months Ended September 30, September 30, 2016 2015 2016 2015 Revenue $158,094 $136,590 $434,997 $411,357 Earnings $2,878 $2,567 $17,071 $6,503 The pro forma results are not necessarily indicative of our consolidated results of operations in future periods or the results that actually would have been realized had the companies operated on a combined basis during the periods presented. The revenue and earnings for the three months ended September 30, 2016 reflects actual results of operations since the financial results were fully combined during that period. The pro forma results include adjustments primarily related to amortization of acquired intangibles, and certain accounting policy alignments as well as direct and incremental acquisition related costs reflected in the historical financial statements. The preliminary purchase price allocation was used to prepare the pro forma adjustments. The final allocation could differ materially from the preliminary allocation used in the pro forma adjustments.

Equity

Equity	9 Months Ended
	Sep. 30, 2016
Equity [Abstract]
Equity	4. Equity Non-controlling Interest The Company holds an economic interest and is the sole managing member in Spark HoldCo, with NuDevco Retail and Retailco holding the remaining economic interest in Spark HoldCo. As a result, the Company has consolidated the financial position and results of operations of Spark HoldCo and reflected the economic interest retained by NuDevco Retail and Retailco as a non-controlling interest. From January 1, 2015 through September 30, 2016 , the Company and NuDevco Retail and Retailco owned the following economic interests in Spark HoldCo: The Company NuDevco Retail and Retailco (1) From January 1, 2015 to May 3, 2015 21.82 % 78.18 % From May 4, 2015 to December 30, 2015 22.37 % 77.63 % From December 31, 2015 to February 2, 2016 22.49 % 77.51 % From February 3, 2016 to March 31, 2016 29.70 % 70.30 % From April 1, 2016 to May 3, 2016 42.14 % 57.86 % From May 4, 2016 to May 17, 2016 42.46 % 57.54 % From May 18, 2016 to May 24, 2016 42.64 % 57.36 % From May 25, 2016 to June 7, 2016 42.66 % 57.34 % From June 8, 2016 to June 30, 2016 46.23 % 53.77 % From July 1, 2016 to July 14, 2016 46.23 % 53.77 % From July 15, 2016 to July 31, 2016 46.32 % 53.68 % From August 1, 2016 to August 17, 2016 44.12 % 55.88 % From August 18, 2016 to August 22, 2016 44.13 % 55.87 % From August 23, 2016 to September 22, 2016 38.85 % 61.15 % From September 23, 2016 to September 30, 2016 38.85 % 61.15 % (1) In January 2016, Retailco succeeded to the interest of NuDevco Retail Holdings of its Class B common stock and an equal number of Spark HoldCo units it held pursuant to a series of transfers. The following table summarizes the portions of net income and income tax expense (benefit) attributable to non-controlling interest (in thousands): Three Months Ended September 30, Nine Months Ended September 30, 2016 2015 2016 2015 Net income allocated to non-controlling interest $ 6,569 $ 5,011 $ 35,356 $ 19,058 Income tax expense (benefit) allocated to non-controlling interest (49 ) 450 517 99 Net income attributable to non-controlling interest $ 6,618 $ 4,561 $ 34,839 $ 18,959 Issuance of Class A Common Stock Upon Vesting of Restricted Stock Units The Company's economic interests in Spark HoldCo increased on May 4, 2015, December 31, 2015, May 4, 2016, May 18, 2016, May 25, 2016, July 15, 2016, August 18, 2016 and September 23, 2016 due to the vesting of restricted stock units. On May 4, 2015, 118,629 restricted stock units vested, with 97,193 shares of common stock distributed to the holders of these units and with 21,436 shares of common stock withheld by the Company to cover taxes owed on the vesting of such units. On December 31, 2015, 29,500 restricted stock units vested, with 21,430 shares of common stock distributed to the holders of these units and with 8,070 shares of common stock withheld by the Company to cover taxes owed on the vesting of such units. On May 4, 2016, 101,210 restricted stock units vested, with 77,814 shares of common stock distributed to the holders of these units and with 23,396 shares of common stock withheld by the Company to cover taxes owed on the vesting of such units. On May 18, 2016, 53,853 restricted stock units vested, with 43,683 shares of common stock distributed to the holders of these units and with 10,170 shares of common stock withheld by the Company to cover taxes owed on the vesting of such units. On May 25, 2016, 5,000 restricted stock units vested, with 5,000 shares of common stock distributed to the holders of these units. On July 15, 2016, 32,704 restricted stock units vested, with 23,030 shares of common stock distributed to the holders of these units and 9,674 shares of common stock withheld by the Company to cover taxes owed on the vesting of such units. On August 18, 2016, 4,166 restricted stock units vested, with 3,019 shares of common stock distributed to the holders of these units and 1,147 shares of common stock withheld by the Company to cover taxes owed on the vesting of such units. On September 23, 2016, 580 restricted stock units vested, with 383 shares of common stock distributed to the holders of these units and 197 shares of common stock withheld by the Company to cover taxes owed on the vesting of such units. Issuance of Class B Common Stock On August 1, 2016, the Company issued 699,742 shares of Class B common stock to Retailco in connection with the acquisition of the Provider Companies. On August 23, 2016, the Company issued 2,000,000 shares of Class B common stock to Retailco in connection with the acquisition of Major Energy Companies. Conversion of Class B Common Stock to Class A Common Stock On February 3, 2016, April 1, 2016 and June 8, 2016, Retailco exchanged 1,000,000 , 1,725,000 and 500,000 , respectively, of its Spark HoldCo units (together with a corresponding number of shares of Class B common stock) for shares of Class A common stock at an exchange ratio of one share of Class A common stock for each Spark HoldCo unit (and corresponding share of Class B common stock) exchanged. Refer to Note 10 "Taxes" for further discussion. Earnings Per Share Basic earnings per share (“EPS”) is computed by dividing net income attributable to stockholders (the numerator) by the weighted-average number of Class A common shares outstanding for the period (the denominator). Class B common shares are not included in the calculation of basic earnings per share because they are not participating securities and have no economic interest in the Company. Diluted earnings per share is similarly calculated except that the denominator is increased (1) using the treasury stock method to determine the potential dilutive effect of the Company's outstanding unvested restricted stock units, (2) using the if-converted method to determine the potential dilutive effect of the Company's Class B common stock and (3) using the if-converted method to determine the potential dilutive effect of the outstanding convertible subordinated notes into the Company's Class B common stock. The following table presents the computation of earnings per share for the three and nine months ended September 30, 2016 and 2015 (in thousands, except per share data): Three Months Ended September 30, Nine Months Ended September 30, 2016 2015 2016 2015 Net income attributable to stockholders of Class A common stock $ 183 $ 1,314 $ 6,697 $ 3,884 Basic weighted average Class A common shares outstanding 6,491 3,097 5,434 3,053 Basic EPS attributable to stockholders $ 0.03 $ 0.42 $ 1.23 $ 1.27 Net income attributable to stockholders of Class A common stock $ 183 $ 1,314 $ 6,697 $ 3,884 Effect of conversion of Class B common stock to shares of Class A common stock, net of tax effect — 3,605 — 11,734 Effect of conversion of convertible subordinated notes into shares of Class B common stock and shares of Class B common stock into shares of Class A common stock, net of tax effect (467 ) (520 ) (358 ) (436 ) Diluted net income (loss) attributable to stockholders of Class A common stock (284 ) 4,399 6,339 15,182 Basic weighted average Class A common shares outstanding 6,491 3,097 5,434 3,053 Effect of dilutive Class B common stock — 10,750 — 10,750 Effect of dilutive convertible subordinated notes into shares of Class B common stock and shares of Class B common stock into shares of Class A common stock 505 351 505 118 Effect of dilutive restricted stock units 59 34 111 27 Diluted weighted average shares outstanding 7,055 14,232 6,050 13,948 Diluted EPS attributable to stockholders $ (0.04 ) $ 0.31 $ 1.05 $ 1.09 The conversion of shares of Class B common stock to shares of Class A common stock was not recognized in dilutive earnings per share for the three months and nine months ended September 30, 2016 as the effect of the conversion was antidilutive. Variable Interest Entity On January 1, 2016, we adopted ASU No. 2015-02, Consolidation (Topic 810) (“ASU 2015-02”). ASU 2015-02 changed the analysis that a reporting entity must perform to determine whether it should consolidate certain types of legal entities. Upon adoption, we continued to consolidate Spark HoldCo, but considered Spark HoldCo to be a variable interest entity requiring additional disclosures in the footnotes of our condensed consolidated financial statements. Spark HoldCo is a variable interest entity due to its lack of rights to participate in significant financial and operating decisions and inability to dissolve or otherwise remove its management. Spark HoldCo owns all of the outstanding membership interests in each of the operating subsidiaries through which the Company operates. The Company is the sole managing member of Spark HoldCo, manages Spark HoldCo's operating subsidiaries through this managing membership interest, and is considered the primary beneficiary of Spark HoldCo. The assets of Spark HoldCo cannot be used to settle the obligations of the Company except through distributions to the Company, and the liabilities of Spark HoldCo cannot be settled by the Company except through contributions to Spark HoldCo. The following table includes the carrying amounts and classification of the assets and liabilities of Spark HoldCo that are included in the Company's condensed consolidated balance sheet as of September 30, 2016 (in thousands): September 30, 2016 Assets Current assets: Cash and cash equivalents $ 16,850 Accounts receivable 79,744 Other current assets 63,094 Total current assets 159,688 Non-current assets: Goodwill 79,556 Other assets 42,485 Total non-current assets 122,041 Total Assets $ 281,729 Liabilities Current liabilities: Accounts payable and accrued liabilities $ 78,511 Intercompany payable with Spark Energy, Inc. 5,555 Current portion of Senior Credit Facility 49,269 Contingent consideration 11,464 Other current liabilities 20,021 Total current liabilities 164,820 Long-term liabilities: Convertible subordinated notes to affiliates 6,542 Contingent consideration 7,472 Other long-term liabilities 1,467 Total long-term liabilities 15,481 Total Liabilities $ 180,301

Property and Equipment

Property and Equipment	9 Months Ended
	Sep. 30, 2016
Property, Plant and Equipment [Abstract]
Property and Equipment	5. Property and Equipment Property and equipment consist of the following amounts: Estimated September 30, 2016 December 31, 2015 (years) (In thousands) Information technology 2 – 5 $ 29,228 $ 27,392 Leasehold improvements 2 – 5 4,568 4,568 Furniture and fixtures 2 – 5 1,012 1,007 Total 34,808 32,967 Accumulated depreciation (29,942 ) (28,491 ) Property and equipment—net $ 4,866 $ 4,476 Information technology assets include software and consultant time used in the application, development and implementation of various systems including customer billing and resource management systems. As of September 30, 2016 and December 31, 2015 , information technology includes $0.8 million and $0.5 million , respectively, of costs associated with assets not yet placed into service. Depreciation expense recorded in the condensed consolidated statements of operations was $0.5 million and $0.3 million for the three months ended September 30, 2016 and 2015 , respectively, and $1.4 million and $1.2 million for the nine months ended September 30, 2016 and 2015 , respectively.

Goodwill, Customer Relationship

Goodwill, Customer Relationships and Trademarks	9 Months Ended
	Sep. 30, 2016
Goodwill and Intangible Assets Disclosure [Abstract]
Goodwill, Customer Relationships and Trademarks	6. Goodwill, Customer Relationships and Trademarks Goodwill, customer relationships and trademarks consist of the following amounts (in thousands): September 30, 2016 December 31, 2015 Goodwill $ 79,556 $ 18,379 Customer relationships - Acquired (1) Cost $ 63,571 $ 14,883 Accumulated amortization (22,022 ) (4,503 ) Customer relationships - Acquired, net $ 41,549 $ 10,380 Customer relationships - Other (2) Cost $ 4,320 $ 4,320 Accumulated amortization (2,349 ) (1,271 ) Customer relationships - Other, net $ 1,971 $ 3,049 Trademarks (3) Cost $ 6,770 $ 1,268 Accumulated amortization (311 ) (74 ) Trademarks, net $ 6,459 $ 1,194 (1) Customer relationships - Acquired represents those customer acquisitions accounted for under the acquisition method in accordance with ASC 805. (2) Customer relationships - Other represent portfolios of customer contracts not accounted for in accordance with ASC 805 as these acquisitions were not in conjunction with the acquisition of businesses. (3) Trademarks reflect values associated with the recognition and positive reputation of acquired businesses accounted for as part of the acquisition method in accordance with ASC 805 through the acquisition of CenStar, Oasis, the Major Energy Companies and the Provider Companies. These trademarks are recorded as other assets in the condensed consolidated balance sheets. Changes in goodwill, customer relationships and trademarks consisted of the following (in thousands): Goodwill Customer Relationships - Acquired Customer Relationships - Others Trademarks Balance at December 31, 2015 $ 18,379 $ 10,380 $ 3,049 $ 1,194 Additions 61,177 48,688 — 5,502 Amortization expense — (17,519 ) (1,078 ) (237 ) Balance at September 30, 2016 $ 79,556 $ 41,549 $ 1,971 $ 6,459 Approximately $9.4 million of the $17.5 million customer relationships amortization expense for the nine months ending September 30, 2016 is included in cost of revenues. Estimated future amortization expense for customer relationships and trademarks at September 30, 2016 is as follows (in thousands): Year ending December 31, 2016 $ 10,117 2017 12,913 2018 10,337 2019 5,892 2020 2,895 > 5 years 7,825 Total $ 49,979

Debt

Debt	9 Months Ended
	Sep. 30, 2016
Debt Disclosure [Abstract]
Debt	Debt consists of the following amounts (in thousands): September 30, 2016 December 31, 2015 Current portion of Senior Credit Facility—Working Capital Line (1) (2) $ 26,000 $ 22,500 Current portion of Senior Credit Facility—Acquisition Line (1) (2) 23,269 5,306 Current portion of Note Payable—Pacific Summit Energy 13,445 — Total current debt 62,714 27,806 Long-term portion of Senior Credit Facility—Acquisition Line (1) — 14,592 Convertible subordinated notes to affiliate (3) 6,542 6,339 Total long-term debt 6,542 20,931 Total debt $ 69,256 $ 48,737 (1) As of September 30, 2016 and December 31, 2015 , the Company had $33.0 million and $21.5 million in letters of credit issued, respectively. (2) As of September 30, 2016 and December 31, 2015 , the weighted average interest rate on the current portion of our Senior Credit Facility was 4.38% and 3.90% , respectively. (3) During the three and nine months ended September 30, 2016 , respectively, we paid in-kind $0.2 million and $ 0.4 million of interest, which was added to the outstanding balance of the convertible subordinated notes. Unamortized discount of $0.9 million and $0.7 million at September 30, 2016 and December 31, 2015 , respectively, is related to beneficial conversion features of the convertible subordinated notes. On October 5, 2016, RAC issued to the Company an irrevocable commitment to convert the CenStar Note and the Oasis Note into shares of Class B common stock on January 8, 2017 and January 31, 2017, respectively. See Note 14 "Subsequent Events." Deferred financing costs were $0.6 million and $0.7 million as of September 30, 2016 and December 31, 2015 , respectively, representing capitalized financing costs in connection with the amendment and restatement of our Senior Credit Facility on July 8, 2015. Of these amounts, $0.6 million and $0.5 million is recorded in other current assets in the condensed consolidated balance sheets as of each of September 30, 2016 and December 31, 2015 , and zero and $0.2 million is recorded in other assets in the condensed consolidated balance sheets as of September 30, 2016 and December 31, 2015 , respectively, based on the terms of the Senior Credit Facility. Interest expense consists of the following components for the periods indicated (in thousands): Three Months Ended September 30, Nine Months Ended September 30, 2016 2015 2016 2015 Interest incurred on Senior Credit Facility $ 712 $ 351 $ 1,435 $ 670 Commitment fees 30 44 113 141 Letters of credit fees 165 124 457 223 Amortization of deferred financing costs 231 195 465 295 Interest incurred on convertible subordinated notes to affiliate (1) 132 86 385 86 Interest Expense $ 1,270 $ 800 $ 2,855 $ 1,415 1) Includes amortization of the discount on the convertible subordinated notes to affiliates of less than $0.1 million and $0.1 million , respectively for the three and nine months ended September 30, 2016 Senior Credit Facility The Company, as guarantor, and Spark HoldCo (the “Borrower,” and together with SE, SEG, CenStar, CenStar Operating Company, LLC, Oasis, Oasis Power, LLC, Electricity Maine, LLC, Electricity N.H., LLC, and Provider Power Mass, LLC, each a subsidiary of Spark HoldCo, the “Co-Borrowers”) are party to a senior secured revolving credit facility (“Senior Credit Facility”), which includes a senior secured revolving working capital facility up to $82.5 million ("Working Capital Line") and a secured revolving line of credit of $25.0 million ("Acquisition Line") to be used specifically for the financing of up to 75% of the cost of acquisitions with the remainder to be financed by the Company either through cash on hand or the issuance of subordinated debt or equity. On September 30, 2016, the Company and the Co-Borrowers elected to reduce the capacity of the Working Capital Line from $82.5 million to $60.0 million . The Senior Credit Facility will mature on July 8, 2017 and may be extended for one additional year with lender consent. Borrowings under the Acquisition Line will be repaid 25% per year with the remainder due at maturity. On June 1, 2016, the Company and the Co-Borrowers entered into Amendment No. 3 to the Senior Credit Facility to, among other things, increase the Working Capital Line from $60.0 million to $82.5 million in accordance with the Co-Borrowers' right to increase under the existing terms of the Senior Credit Facility. Amendment No. 3 also provides for the addition of new lenders and re-allocates working capital and revolving commitments among existing and new lenders. Amendment No. 3 also provides for additional representations of the Co-Borrowers and additional protections of the lenders of the Senior Credit Facility. On August 1, 2016, the Company and the Co-Borrowers entered into Amendment No. 4 to the Senior Credit Facility to, among other things, amend the provisions under the Acquisition Line to allow for the Provider Companies acquisition. Amendment No. 4 also raises the minimum availability under the Working Capital Line to $40.0 million . In addition, Amendment No. 4 designates Major Energy Companies as "unrestricted subsidiaries" upon the closing of such acquisition on August 23, 2016. Refer to Note 3 "Acquisitions" for further discussion. At our election, the interest rate under the Working Capital Line is generally determined by reference to: • the Eurodollar rate plus an applicable margin of up to 3.00% per annum (based upon the prevailing utilization); or • the alternate base rate plus an applicable margin of up to 2.00% per annum (based upon the prevailing utilization). The alternate base rate is equal to the highest of (i) Société Générale’s prime rate, (ii) the federal funds rate plus 0.50% per annum, or (iii) the reference Eurodollar rate plus 1.00% ; or • the rate quoted by Société Générale as its cost of funds for the requested credit plus up to 2.50% per annum (based upon the prevailing utilization). The interest rate is generally reduced by 25 basis points if utilization under the Working Capital Line is below fifty percent. Borrowings under the Acquisition Line are generally determined by reference to: • the Eurodollar rate plus an applicable margin of up to 3.75% per annum (based upon the prevailing utilization); or • the alternate base rate plus an applicable margin of up to 2.75% per annum (based upon the prevailing utilization). The alternate base rate is equal to the highest of (i) Société Générale's prime rate, (ii) the federal funds rate plus 0.50% per annum, or (iii) the reference Eurodollar rate plus 1.00% . The Co-Borrowers pay an annual commitment fee of 0.375% or 0.5% on the unused portion of the Working Capital Line depending upon the unused capacity and 0.5% on the unused portion of the Acquisition Line. The lending syndicate under the Senior Credit Facility is entitled to several additional fees including an upfront fee, annual agency fee, and fronting fees based on a percentage of the face amount of letters of credit payable to any syndicate member that issues a letter a credit. The Company has the ability to elect the availability under the Working Capital Line between $40.0 million to $82.5 million . On September 30, 2016, the Company and the Co-Borrowers elected to reduce the capacity of the Working Capital Line from $82.5 million to $60.0 million . Availability under the working capital line will be subject to borrowing base limitations. The borrowing base is calculated primarily based on 80% to 90% of the value of eligible accounts receivable and unbilled product sales (depending on the credit quality of the counterparties) and inventory and other working capital assets. The Co-Borrowers must generally seek approval of the agent or the lenders for permitted acquisitions to be financed under the Acquisition Line. The Senior Credit Facility is secured by pledges of the equity of the portion of Spark HoldCo owned by the Company and of the equity of Spark HoldCo’s subsidiaries and the Co-Borrowers’ present and future subsidiaries, all of the Co-Borrowers’ and their subsidiaries’ present and future property and assets, including accounts receivable, inventory and liquid investments, and control agreements relating to bank accounts. The Senior Credit Facility also contains covenants that, among other things, require the maintenance of specified ratios or conditions as follows: • Minimum Net Working Capital . The Co-Borrowers must maintain minimum consolidated net working capital through December 30, 2016 equal to the greater of $5.0 million or 10% , and from December 31, 2016 and thereafter equal to the greater of $5.0 million or 15% of the elected availability under the Working Capital Line. • Minimum Adjusted Tangible Net Worth. Spark Energy, Inc. must maintain a minimum consolidated adjusted tangible net worth at all times equal to the net cash proceeds from equity issuances occurring after the date of the Senior Credit Facility plus the greater of (i) 20% of aggregate commitments under the Working Capital Line plus 33% of borrowings under the Acquisition Line and (ii) $18.0 million . • Minimum Fixed Charge Coverage Ratio. Spark Energy, Inc. must maintain a minimum fixed charge coverage ratio of 1.10 to 1.00 (with quarterly increases to the numerator of increments of 0.05 up to a maximum of 1.25 ). The Fixed Charge Coverage Ratio is defined as the ratio of (a) Adjusted EBITDA to (b) the sum of consolidated interest expense (other than interest paid-in-kind in respect of any Subordinated Debt), letter of credit fees, commitment fees, acquisition earn-out payments, distributions and scheduled amortization payments. • Maximum Total Leverage Ratio. Spark Energy, Inc. must maintain a ratio of total indebtedness (excluding the Working Capital Facility and qualifying subordinated debt) to Adjusted EBITDA of a maximum of 2.50 to 1.00. The Senior Credit Facility contains various negative covenants that limit the Company’s ability to, among other things, do any of the following: • incur certain additional indebtedness; • grant certain liens; • engage in certain asset dispositions; • merge or consolidate; • make certain payments, distributions, investments, acquisitions or loans; or • enter into transactions with affiliates. Spark Energy, Inc. is entitled to pay cash dividends to the holders of the Class A common stock and Spark HoldCo will be entitled to make cash distributions to NuDevco Retail and Retailco (or their successors in interest) so long as: (a) no default exists or would result from such a payment; (b) the Co-Borrowers are in pro forma compliance with all financial covenants before and after giving effect to such payment and (c) the outstanding amount of all loans and letters of credit does not exceed the borrowing base limits. Spark HoldCo’s inability to satisfy certain financial covenants or the existence of an event of default, if not cured or waived, under the Senior Credit Facility could prevent the Company from paying dividends to holders of the Class A common stock. The Senior Credit Facility contains certain customary representations and warranties and events of default. Events of default include, among other things, payment defaults, breaches of representations and warranties, covenant defaults, cross-defaults and cross-acceleration to certain indebtedness, change in control in which affiliates of W. Keith Maxwell III own less than 40% of the outstanding voting interests in the Company, certain events of bankruptcy, certain events under ERISA, material judgments in excess of $5.0 million , certain events with respect to material contracts, actual or asserted failure of any guaranty or security document supporting the Senior Credit Facility to be in full force and effect and changes of control. If such an event of default occurs, the lenders under the Senior Credit Facility would be entitled to take various actions, including the acceleration of amounts due under the facility and all actions permitted to be taken by a secured creditor. In addition, the Senior Credit Facility contains affirmative covenants that are customary for credit facilities of this type. The covenants include delivery of financial statements (including any filings made with the SEC, maintenance of property and insurance, payment of taxes and obligations, material compliance with laws, inspection of property, books and records and audits, use of proceeds, payments to bank blocked accounts, notice of defaults and certain other customary matters. Convertible Subordinated Notes to Affiliate In connection with the financing of the CenStar acquisition, the Company, together with Spark HoldCo, issued the CenStar Note to RAC for $2.1 million on July 8, 2015. The CenStar Note matures on July 8, 2020, and bears interest at an annual rate of 5% , payable semiannually. The Company has the right to pay interest in kind at its option. The CenStar Note is convertible into shares of the Company’s Class B common stock, par value $0.01 per share (and a related unit of Spark HoldCo) at a conversion price of $16.57 per share. RAC may not exercise conversion rights for the first eighteen months after the CenStar Note is issued. The CenStar Note is subject to automatic conversion upon a sale of the Company. The CenStar Note is subordinated in certain respects to the Senior Credit Facility pursuant to a subordination agreement. The Company may pay interest and prepay principal so long as the Company is in compliance with its covenants; is not in default under the Senior Credit Facility and has minimum availability of $5.0 million under its borrowing base under the Senior Credit Facility. Shares of Class A common stock resulting from the conversion of the shares of Class B common stock issued as a result of the conversion right under the CenStar Note will be entitled to registration rights identical to the registration rights currently held by NuDevco Retail and Retailco on shares of Class A common stock it receives upon conversion of its existing shares of Class B common stock. On October 5, 2016, RAC issued to the Company an irrevocable commitment to convert the CenStar Note into 134,731 shares of Class B common stock (and related Spark HoldCo units) on January 8, 2017. Please see Note 14 "Subsequent Events." In connection with the financing of the Oasis acquisition, the Company, together with Spark HoldCo, issued the Oasis Note to RAC for $5.0 million on July 31, 2015. The Oasis Note matures on July 31, 2020, and bears interest at an annual rate of 5% , payable semiannually. The Company has the right to pay-in-kind any interest at its option. The Oasis Note is convertible into shares of the Company's Class B common stock, par value $0.01 per share (and a related unit of Spark HoldCo) at a conversion price of $14.00 per share. RAC may not exercise conversion rights for the first eighteen months after the Oasis Note is issued. The Oasis Note is subject to automatic conversion upon a sale of the Company. The Oasis Note is subordinated in certain respects to the Senior Credit Facility pursuant to a subordination agreement. The Company may pay interest and prepay principal so long as the Company is in compliance with its covenants; is not in default under the Senior Credit Facility and has minimum availability of $5.0 million under its borrowing base under the Senior Credit Facility. Shares of Class A common stock resulting from the conversion of the shares of Class B common stock issued as a result of the conversion right under the Oasis Note will be entitled to registration rights identical to the registration rights currently held by NuDevco Retail and Retailco on shares of Class A common stock it receives upon conversion of its existing shares of Class B common stock. On October 5, 2016, RAC issued to the Company an irrevocable commitment to convert the Oasis Note into 383,090 shares of Class B common stock (and related Spark HoldCo units) on January 31, 2017. Please see Note 14 "Subsequent Events." The conversion rate of $14.00 per share for the Oasis Note was fixed as of the date of the execution of the Oasis acquisition agreement on May 12, 2015. Due to a rise in the price of our common stock from May 12, 2015 to the closing of Oasis acquisition on July 31, 2015, the conversion rate of $14.00 per share was below the market price per share of Class A common stock of $16.21 on the issuance date of the Oasis Note on July 31, 2015. As a result, the Company assessed the Oasis Note for a beneficial conversion feature. Due to this conversion feature being "in-the-money" upon issuance, we recognized a beneficial conversion feature based on its intrinsic value of $0.8 million as a discount to the Oasis Note and as additional paid-in capital. This discount will be amortized as interest expense under the effective interest method over the life of the Oasis Note. Pacific Summit Energy LLC The Major Energy Companies acquired by the Company are party to three trade credit arrangements with Pacific Summit Energy LLC (“Pacific Summit”), which consist of purchase agreements, operating agreements relating to purchasing terms, security agreements, lockbox agreements and guarantees, providing for the exclusive supply of gas and electricity on credit by Pacific Summit to the Major Energy Companies for resale to end users. Under these arrangements, when the costs that Pacific Summit has paid to procure and deliver the gas and electricity exceed the payments that the Major Energy Companies have made attributable to the gas and electricity purchased, the Major Energy Companies incur interest on the difference. The operating agreements also allow Pacific Summit to provide credit support. Each form of borrowing incurs interest at the floating 90-day LIBOR rate plus 300 basis points (except for certain credit support guaranties that do not bear interest). In connection with these arrangements, the Major Companies have granted first liens to Pacific Summit on a substantial portion of the Major Companies’ assets, including present and future accounts receivable, inventory, liquid assets, and control agreements relating to bank accounts. As of September 30, 2016, the Company had aggregate outstanding amounts payable under these arrangements of approximately $13.4 million , bearing an interest rate of approximately 3.9% . The Company was also the beneficiary under various credit support guarantees issued by Pacific Summit under these arrangements as of such date. On September 27, 2016, we notified Pacific Summit of our election to trigger the expiration of these arrangements as of March 31, 2017, at the end of the primary term.

Fair Value Measurements

Fair Value Measurements	9 Months Ended
	Sep. 30, 2016
Fair Value Disclosures [Abstract]
Fair Value Measurements	8. Fair Value Measurement Fair value is defined as the price that would be received to sell an asset or paid to transfer a liability (exit price) in an orderly transaction between market participants at the measurement date. Fair values are based on assumptions that market participants would use when pricing an asset or liability, including assumptions about risk and the risks inherent in valuation techniques and the inputs to valuations. This includes not only the credit standing of counterparties involved and the impact of credit enhancements but also the impact of the Company’s own nonperformance risk on its liabilities. The Company applies fair value measurements to its commodity derivative instruments and a contingent payment arrangement based on the following fair value hierarchy, which prioritizes the inputs to valuation techniques used to measure fair value into three broad levels: • Level 1—Quoted prices in active markets for identical assets and liabilities. Instruments categorized in Level 1 primarily consist of financial instruments such as exchange-traded derivative instruments. • Level 2—Inputs other than quoted prices recorded in Level 1 that are either directly or indirectly observable for the asset or liability, including quoted prices for similar assets or liabilities in active markets, quoted prices for identical or similar assets or liabilities in inactive markets, inputs other than quoted prices that are observable for the asset or liability, and inputs that are derived from observable market data by correlation or other means. Instruments categorized in Level 2 primarily include non-exchange traded derivatives such as over-the-counter commodity forwards and swaps and options. • Level 3—Unobservable inputs for the asset or liability, including situations where there is little, if any, observable market activity for the asset or liability. The Level 3 category includes estimated earnout obligations related to the Company's acquisitions. As the fair value hierarchy gives the highest priority to quoted prices in active markets (Level 1) and the lowest priority to unobservable data (Level 3), the Company maximizes the use of observable inputs and minimizes the use of unobservable inputs when measuring fair value. In some cases, the inputs used to measure fair value might fall in different levels of the fair value hierarchy. In these cases, the lowest level input that is significant to a fair value measurement in its entirety determines the applicable level in the fair value hierarchy. Assets and Liabilities Measured at Fair Value on a Recurring Basis The following table presents assets and liabilities measured and recorded at fair value in the Company’s condensed consolidated balance sheets on a recurring basis by and their level within the fair value hierarchy as of (in thousands): Level 1 Level 2 Level 3 Total September 30, 2016 Non-trading commodity derivative assets $ — $ 915 $ — $ 915 Trading commodity derivative assets — 939 — 939 Total commodity derivative assets $ — $ 1,854 $ — $ 1,854 Non-trading commodity derivative liabilities $ (448 ) $ (14,448 ) $ — $ (14,896 ) Trading commodity derivative liabilities (58 ) (275 ) — (333 ) Total commodity derivative liabilities $ (506 ) $ (14,723 ) $ — $ (15,229 ) Contingent payment arrangement $ — $ — $ (18,935 ) $ (18,935 ) Level 1 Level 2 Level 3 Total December 31, 2015 Non-trading commodity derivative assets $ — $ 200 $ — $ 200 Trading commodity derivative assets — 405 — 405 Total commodity derivative assets $ — $ 605 $ — $ 605 Non-trading commodity derivative liabilities $ (3,324 ) $ (7,661 ) $ — $ (10,985 ) Trading commodity derivative liabilities — (253 ) — (253 ) Total commodity derivative liabilities $ (3,324 ) $ (7,914 ) $ — $ (11,238 ) Contingent payment arrangement $ — $ — $ (500 ) $ (500 ) The Company had no transfers of assets or liabilities between any of the above levels during the nine months ended September 30, 2016 and the year ended December 31, 2015 . The Company’s derivative contracts include exchange-traded contracts fair valued utilizing readily available quoted market prices and non-exchange-traded contracts fair valued using market price quotations available through brokers or over-the-counter and on-line exchanges. In addition, in determining the fair value of the Company’s derivative contracts, the Company applies a credit risk valuation adjustment to reflect credit risk that is calculated based on the Company’s or the counterparty’s historical credit risks. As of September 30, 2016 and December 31, 2015 , the credit risk valuation adjustment was not material. The contingent payment arrangements referred to above reflect estimated earnout obligations incurred in relation to the Company's acquisitions. As of September 30, 2016 , the estimated earnout obligations were $18.9 million , which was comprised of the Provider Earnout, the Major Earnout and the Stock Earnout in the amount of $4.8 million , $13.3 million , and $0.8 million , respectively. As of December 31, 2015 , the estimated earnout obligations were attributed to the CenStar acquisition (the "CenStar Earnout") in the amount of $0.5 million , which was settled by September 30, 2016. As of September 30, 2016 , the estimated earnouts reside on our condensed consolidated balance sheets in current liabilities - contingent consideration and long-term liabilities - contingent consideration in the amount of $11.3 million and $7.6 million , respectively; and as of December 31, 2015 , in current liabilities - contingent consideration in the amount of $0.5 million . The CenStar Earnout was based on a financial measurement attributable to the operations of CenStar for the year following the closing of the acquisition. In determining the fair value of the CenStar Earnout, the Company forecasted a one year performance measurement, as defined by the CenStar stock purchase agreement. As this calculation was based on management's estimates of the liability, we classified the CenStar Earnout as a Level 3 measurement. During the first quarter of 2016, our estimate of the CenStar Earnout was increased to $1.5 million which was based on the results of operations during such period. In August 2016, we entered into a settlement and release agreement with the seller of CenStar in which the Company paid $1.3 million to such seller and released an additional $0.6 million from escrow in full satisfaction of the earnout obligation under the CenStar stock purchase agreement. During the three and nine months ended September 30, 2016 , the residual earnout amount of $0.2 million was written off via a reduction to general and administrative expense in our condensed consolidated statements of operations. The Provider Earnout is based on achievement by the Provider Companies of a certain customer count criteria over the nine month period following the closing of the Provider Companies acquisition. The sellers of the Provider Companies are entitled to a maximum of $9.0 million and a minimum of $5.0 million in earnout payments based on the level of customer count attained, as defined by the Provider Companies membership interest purchase agreement. In determining the fair value of the Provider Earnout, the Company forecasted an expected customer count and certain other related criteria and calculated the probability of such forecast being attained. As this calculation is based on management's estimates of the liability, we classified the Provider Earnout as a Level 3 measurement. The Major Earnout is based on the achievement by the Major Energy Companies of certain performance targets over the 33 month period following NG&E's closing of the Major Energy Companies acquisition (i.e., April 15, 2016). The previous members of Major Energy Companies are entitled to a maximum of $20.0 million in earnout payments based on the level of performance targets attained, as defined by the Major Purchase Agreement. The Stock Earnout obligation is contingent upon the Major Energy Companies achieving the Major Earnout's performance target ceiling, thereby earning the maximum Major Earnout payments. If the Major Energy Companies earn such maximum Major Earnout payments, NG&E would be entitled to a maximum of 200,000 shares of Class B common stock (and a corresponding number of Spark HoldCo units). In determining the fair value of the Major Earnout and the Stock Earnout, the Company forecasted certain expected performance targets and calculated the probability of such forecast being attained. As this calculation is based on management's estimates of the liability, we classified the Major Earnout as a Level 3 measurement. Other Financial Instruments The carrying amount of cash and cash equivalents, accounts receivable, accounts receivable—affiliates, accounts payable, accounts payable—affiliates, and accrued liabilities recorded in the condensed consolidated balance sheets approximate fair value due to the short-term nature of these items. The carrying amount of the Senior Credit Facility recorded in the condensed consolidated balance sheets approximates fair value because of the variable rate nature of the Company’s line of credit. The fair value of our convertible subordinated notes to affiliates is not determinable for accounting purposes due to the affiliate nature and terms of the associated debt instrument with the affiliate. The fair value of the payable pursuant to tax receivable agreement—affiliate is not determinable for accounting purposes due to the affiliate nature and terms of the associated agreement with the affiliate.

Accounting for Derivative Instr

Accounting for Derivative Instruments	9 Months Ended
	Sep. 30, 2016
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Accounting for Derivative Instruments	9. Accounting for Derivative Instruments The Company is exposed to the impact of market fluctuations in the price of electricity and natural gas and basis costs, storage and ancillary capacity charges from independent system operators. The Company uses derivative instruments to manage exposure to these risks. The Company holds certain derivative instruments that are not held for trading purposes and are not designated as hedges for accounting purposes. These derivative instruments represent economic hedges that mitigate the Company’s exposure to fluctuations in commodity prices. For these derivative instruments, changes in the fair value are recognized currently in earnings in retail revenues or retail cost of revenues. As part of the Company’s strategy to optimize its assets and manage related risks, it also manages a portfolio of commodity derivative instruments held for trading purposes. The Company’s commodity trading activities are subject to limits within the Company’s Risk Management Policy. For these derivative instruments, changes in the fair value are recognized currently in earnings in net asset optimization revenues. Derivative assets and liabilities are presented net in the Company’s condensed consolidated balance sheets when the derivative instruments are executed with the same counterparty under a master netting arrangement. The Company’s derivative contracts include transactions that are executed both on an exchange and centrally cleared as well as over-the-counter, bilateral contracts that are transacted directly with a third party. To the extent the Company has paid or received collateral related to the derivative assets or liabilities, such amounts would be presented net against the related derivative asset or liability’s fair value. As of September 30, 2016 and December 31, 2015 , the Company had $1.2 million and $0.1 million in collateral outstanding, respectively. The specific types of derivative instruments the Company may execute to manage the commodity price risk include the following: • Forward contracts, which commit the Company to purchase or sell energy commodities in the future; • Futures contracts, which are exchange-traded standardized commitments to purchase or sell a commodity or financial instrument; • Swap agreements, which require payments to or from counterparties based upon the differential between two prices for a predetermined notional quantity; and • Option contracts, which convey to the option holder the right but not the obligation to purchase or sell a commodity. The Company has entered into other energy-related contracts that do not meet the definition of a derivative instrument or qualify for the normal purchase or normal sale exception and are therefore not accounted for at fair value including the following: • Forward electricity and natural gas purchase contracts for retail customer load, and • Natural gas transportation contracts and storage agreements. Volumetric Underlying Derivative Transactions The following table summarizes the net notional volume buy/(sell) of the Company’s open derivative financial instruments accounted for at fair value, broken out by commodity, as of (in thousands): Non-trading Commodity Notional September 30, 2016 December 31, 2015 Natural Gas MMBtu 6,760 7,543 Natural Gas Basis MMBtu — 455 Electricity MWh 3,278 1,187 Trading Commodity Notional September 30, 2016 December 31, 2015 Natural Gas MMBtu (2,366 ) 8 Natural Gas Basis MMBtu 242 (455 ) Gains (Losses) on Derivative Instruments Gains (losses) on derivative instruments, net and current period settlements on derivative instruments were as follows for the periods indicated (in thousands): Three Months Ended September 30, 2016 2015 (Loss) gain on non-trading derivatives, net $ (1,183 ) $ 132 Gain (loss) on trading derivatives, net 574 (71 ) (Loss) gain on derivatives, net (609 ) 61 Current period settlements on non-trading derivatives (1) (2) (8,889 ) 4,035 Current period settlements on trading derivatives 20 128 Total current period settlements on derivatives $ (8,869 ) $ 4,163 (1) Excludes settlements of $0.5 million and $2.0 million , respectively, for the three months ended September 30, 2016 and 2015 related to non-trading derivative liabilities assumed in the acquisitions of CenStar and Oasis. (2) Excludes settlements of $11.2 million for the three months ended September 30, 2016 related to non-trading derivative liabilities assumed in the acquisitions of the Provider Companies and Major Energy Companies. Nine Months Ended September 30, 2016 2015 Gain (loss) on non-trading derivatives, net $ 2,519 $ (5,876 ) Gain (loss) on trading derivatives, net 368 (242 ) Loss on derivatives, net 2,887 (6,118 ) Current period settlements on non-trading derivatives (1) (2) 3,341 12,643 Current period settlements on trading derivatives 86 244 Total current period settlements on derivatives $ 3,427 $ 12,887 (1) Excludes settlements of $0.6 million and $2.2 million , respectively, for the nine months ended September 30, 2016 and 2015 related to non-trading derivative liabilities assumed in the acquisitions of CenStar and Oasis. (2) Excludes settlements of $14.7 million for the nine months ended September 30, 2016 related to non-trading derivative liabilities assumed in the acquisitions of the Provider Companies and Major Energy Companies. Gains (losses) on trading derivative instruments are recorded in net asset optimization revenues and gains (losses) on non-trading derivative instruments are recorded in retail revenues or retail cost of revenues on the condensed consolidated statements of operations. Fair Value of Derivative Instruments The following tables summarize the fair value and offsetting amounts of the Company’s derivative instruments by counterparty and collateral received or paid as of (in thousands): September 30, 2016 Description Gross Assets Gross Net Assets Cash Net Amount Non-trading commodity derivatives $ 1,909 $ (1,312 ) $ 597 $ — $ 597 Trading commodity derivatives 952 (13 ) 939 — 939 Total Current Derivative Assets 2,861 (1,325 ) 1,536 — 1,536 Non-trading commodity derivatives 411 (93 ) 318 — 318 Total Non-current Derivative Assets 411 (93 ) 318 — 318 Total Derivative Assets $ 3,272 $ (1,418 ) $ 1,854 $ — $ 1,854 September 30, 2016 Description Gross Gross Net Cash Net Amount Non-trading commodity derivatives $ (24,955 ) $ 10,326 $ (14,629 ) $ 1,200 $ (13,429 ) Trading commodity derivatives (356 ) 23 (333 ) — (333 ) Total Current Derivative Liabilities (25,311 ) 10,349 (14,962 ) 1,200 (13,762 ) Non-trading commodity derivatives (4,532 ) 3,065 (1,467 ) — (1,467 ) Total Non-current Derivative Liabilities (4,532 ) 3,065 (1,467 ) — (1,467 ) Total Derivative Liabilities $ (29,843 ) $ 13,414 $ (16,429 ) $ 1,200 $ (15,229 ) December 31, 2015 Description Gross Assets Gross Net Assets Cash Net Amount Non-trading commodity derivatives $ 589 $ (389 ) $ 200 $ — $ 200 Trading commodity derivatives 411 (6 ) 405 — 405 Total Current Derivative Assets 1,000 (395 ) 605 — 605 Non-trading commodity derivatives — — — — — Total Non-current Derivative Assets — — — — — Total Derivative Assets $ 1,000 $ (395 ) $ 605 $ — $ 605 December 31, 2015 Description Gross Gross Net Cash Net Amount Non-trading commodity derivatives $ (13,618 ) $ 3,151 $ (10,467 ) $ 100 $ (10,367 ) Trading commodity derivatives (320 ) 67 (253 ) — (253 ) Total Current Derivative Liabilities (13,938 ) 3,218 (10,720 ) 100 (10,620 ) Non-trading commodity derivatives (950 ) 332 (618 ) — (618 ) Total Non-current Derivative Liabilities (950 ) 332 (618 ) — (618 ) Total Derivative Liabilities $ (14,888 ) $ 3,550 $ (11,338 ) $ 100 $ (11,238 )

Taxes

Taxes	9 Months Ended
	Sep. 30, 2016
Income Tax Disclosure [Abstract]
Taxes	10. Taxes Income Taxes The Company and CenStar are each subject to U.S. federal income tax as a corporation. Spark HoldCo and its subsidiaries, with the exception of CenStar, are treated as flow-through entities for U.S. federal income tax purposes, and, as such, are generally not subject to U.S. federal income tax at the entity level. Rather, the tax liability with respect to their taxable income is passed through to their members or partners. Accordingly, the Company is subject to U.S. federal income taxation on its allocable share of Spark HoldCo’s net U.S. taxable income. The Company accounts for income taxes using the assets and liabilities method. Deferred tax assets and liabilities are recognized for future tax consequences attributable to differences between the financial statement carrying amounts of existing assets and liabilities and those assets and liabilities tax bases. The Company applies existing tax law and the tax rate that the Company expects to apply to taxable income in the years in which those differences are expected to be recovered or settled in calculating the deferred tax assets and liabilities. Effects of changes in tax rates on deferred tax assets and liabilities are recognized in income in the period of the tax rate enactment. In November 2015, the FASB issued ASU No. 2015-17, Income Taxes (Topic 740): Balance Sheet Classification of Deferred Taxes ("ASU 2015-17") that is intended to simplify the presentation of deferred taxes by requiring that all deferred taxes be classified as noncurrent and presented as a single noncurrent amount for each tax-payment component of an entity. The ASU 2015-17 is effective for fiscal years beginning after December 15, 2016; however, the Company elected early adoption on January 1, 2016, on a retrospective basis. The adoption of ASU 2015-17 resulted in the reclassification of previously-classified net current deferred taxes of approximately $0.9 million from other current liabilities, resulting in a $23.4 million noncurrent deferred tax asset and a $0.9 million noncurrent deferred tax liability on the Company’s condensed consolidated balance sheet at December 31, 2015. There was no impact to our condensed consolidated statements of operations for the three and nine months ended September 30, 2016 or 2015 . The Company periodically assesses whether it is more likely than not that it will generate sufficient taxable income to realize its deferred income tax assets. In making this determination, the Company considers all available positive and negative evidence and makes certain assumptions. The Company considers, among other things, its deferred tax liabilities, the overall business environment, its historical earnings and losses, current industry trends, and its outlook for future years. The Company believes it is more likely than not that the deferred tax assets will be utilized. On February 3, 2016, Retailco exchanged 1,000,000 of its Spark HoldCo units (together with a corresponding number of shares of Class B common stock) for shares of Class A common stock. The exchange resulted in a step up in tax basis, which gave rise to a deferred tax asset of approximately $8.0 million on the exchange date. In addition, the Company recorded an additional long-term liability as a result of the exchange of approximately $10.3 million pursuant to the Tax Receivable Agreement and a corresponding long-term deferred tax asset of approximately $3.9 million . The initial estimate for the deferred tax asset, net of the liability, under the Tax Receivable Agreement was recorded within additional paid-in capital on our condensed consolidated balance sheet at September 30, 2016 . On April 1, 2016, Retailco exchanged 1,725,000 of its Spark HoldCo units (together with a corresponding number of shares of Class B common stock) for shares of Class A common stock. The exchange resulted in a step up in tax basis, which gave rise to a deferred tax asset of approximately $7.6 million on the exchange date. In addition, the Company recorded an additional long-term liability as a result of the exchange of approximately $10.3 million pursuant to the Tax Receivable Agreement and a corresponding long-term deferred tax asset of approximately $3.9 million . The initial estimate for the deferred tax asset, net of the liability, under the Tax Receivable Agreement was recorded within additional paid-in capital on our condensed consolidated balance sheet at September 30, 2016 . On June 8, 2016, Retailco exchanged 500,000 of its Spark HoldCo units (together with a corresponding number of shares of Class B common stock) for shares of Class A common stock. The exchange resulted in a step up in tax basis, which gave rise to a deferred tax asset of approximately $5.3 million on the exchange date. In addition, the Company recorded an additional long-term liability as a result of the exchange of approximately $6.9 million pursuant to the Tax Receivable Agreement and a corresponding long-term deferred tax asset of approximately $2.6 million . The initial estimate for the deferred tax asset, net of the liability, under the Tax Receivable Agreement was recorded within additional paid-in capital on our condensed consolidated balance sheet at September 30, 2016 . The Company had a net deferred tax asset of approximately $15.6 million related to the step up in tax basis resulting from the purchase by the Company of Spark HoldCo units from NuDevco Retail and NuDevco Retail Holdings (predecessor to Retailco) on the IPO date. In addition, as of September 30, 2016 , the Company had a total liability of $50.6 million for the effect of the Tax Receivable Agreement liability classified as a long-term liability. The Company had a long-term deferred tax asset of approximately $20.0 million related to the Tax Receivable Agreement liability. See Note 12 “Transactions with Affiliates” for further discussion. The effective U.S. federal and state income tax rate for the nine months ended September 30, 2016 and 2015 is 14.2% and 6.5% , respectively, with respect to pre-tax income attributable to the Company's stockholders. The higher effective tax rate for the nine months ended September 30, 2016 is primarily attributable to the CenStar acquisition, discrete items and a decrease in the non-controlling interest. The discrete items were related to federal tax rate increase that is driven by the additional taxable income from the two acquistions, Provider Companies and Major Energy Companies. The remaining increase is primarily attributable to units exchanged by Retailco, which corresponds with an increase in taxable income allocable to the Company from Spark HoldCo that is subject to U.S. federal income taxation. Total income tax expense for the nine months ended September 30, 2016 differed from amounts computed by applying the U.S. federal statutory tax rates to pre-tax income primarily due to state taxes and the impact of permanent differences between book and taxable income, most notably the income attributable to non-controlling interest. The effective tax rate includes a rate benefit attributable to the fact that Spark HoldCo operates as a limited liability company treated as a partnership for federal and state income tax purposes and is not subject to federal and state income taxes. Accordingly, the portion of earnings attributable to non-controlling interest is subject to tax when reported as a component of the non-controlling interest’s taxable income. The February, April and June 2016 exchanges by Retailco decreased the effective tax rate benefit attributable to non-controlling interest.

Commitments and Contingencies

Commitments and Contingencies	9 Months Ended
	Sep. 30, 2016
Commitments and Contingencies Disclosure [Abstract]
Commitments and Contingencies	11. Commitment and Contingencies From time to time, the Company may be involved in legal, tax, regulatory and other proceedings in the ordinary course of business. Other than proceedings discussed below, management does not believe that we are a party to any litigation, claims or proceedings that will have a material impact on the Company’s condensed consolidated financial condition or results of operations. Liabilities for loss contingencies arising from claims, assessments, litigations or other sources are recorded when it is probable that a liability has been incurred and the amount can be reasonably estimated. Indirect Tax Audits The Company is undergoing various types of indirect tax audits spanning from years 2006 to 2016 for which the Company may have additional liabilities arise. At the time of filing these condensed consolidated financial statements, these indirect tax audits are at an early stage and subject to substantial uncertainties concerning the outcome of audit findings and corresponding responses. We accrued $1.6 million during the nine months ended September 30, 2016, which increased accrued liabilities for these indirect tax audits to reflect our best estimate of the amounts we believe we will owe to $1.9 million at September 30, 2016. The outcome of these indirect tax audits may result in additional expense. Legal Proceedings The Company is the subject of the following lawsuits: John Melville et al v. Spark Energy Inc. and Spark Energy Gas, LLC is a purported class action filed on December 17, 2015 in the United States District Court for the District of New Jersey alleging, among other things, that (i) sales representatives engaged as independent contractors for Spark Energy Gas, LLC engaged in deceptive acts in violation of the New Jersey Consumer Fraud Act and (ii) Spark Energy Gas, LLC breached its contract with plaintiff, including a breach of the covenant of good faith and fair dealing. Plaintiff seeks unspecified compensatory and punitive damages for himself and the purported class, injunctive relief and/or declaratory relief, disgorgement of revenues and/or profits and attorneys’ fees. On March 14, 2016, Spark Energy Gas, LLC and Spark Energy, Inc. filed a Motion to Dismiss this case. On April 18, 2016, Plaintiff filed his Opposition to the Motion to Dismiss. On April 25, 2016, Spark Energy, Inc. and Spark Energy Gas, LLC filed a Reply in support of their Motion to Dismiss. The Motion to Dismiss was set on the Court's submission docket for May 2, 2016. The parties are currently waiting on the Court’s ruling. Discovery has not yet commenced in this matter. We cannot predict the outcome or consequences of this case. Halifax-American Energy Company, LLC et al v. Provider Power, LLC, Electricity N.H., LLC, Electricity Maine, LLC, Emile Clavet and Kevin Dean is a lawsuit initially filed on June 12, 2014 in the Rockingham County Superior Court, State of New Hampshire, alleging various claims related to the Provider Companies’ employment of a sales contractor formerly employed with one or more of the plaintiffs, including misappropriation of trade secrets and tortious interference with a contractual relationship. The dispute occurred prior to the Company's acquisition of the Provider Companies. Portions of the original claim proceeded to trial and on January 19, 2016, a jury found in favor of the plaintiff. Damages totaling approximately $0.6 million and attorney’s fees totaling approximately $0.3 million were awarded to the plaintiff. On May 4, 2016, following post-verdict motions, the defendants filed an appeal in the State of New Hampshire Supreme Court, appealing, among other things the failure of the trial court to direct a verdict for the defendants, to set aside the verdict, or grant judgment for the defendants, and the trial court's award of certain attorneys' fees. On August 1, 2016, in connection with the Company’s closing of the acquisition of the Provider Companies, the Provider Companies entered into a joint defense agreement with the remaining defendants. The Provider Companies have posted an appeal bond of $1.0 million in connection with the appeal. On November 2, 2016, a briefing order was distributed by the court. The Provider Companies must have their appellate brief on file with the court no later than December 16, 2016. As of September 30, 2016, the Company has accrued approximately $1.0 million in contingent liabilities related to this litigation. The Company cannot predict the outcome of this case, however initial damages and attorney's fees have been factored into the purchase price for the Provider Companies and the Company has full indemnity coverage and set-off rights against future price installments for any actual exposure in the appeal. In May 2015, the Major Energy Companies settled with the Illinois Commerce Commission with respect to allegations of misleading marketing practices, for $0.3 million . The amount was formerly accounted for in the condensed combined balance sheet of the Major Energy Companies at December 31, 2015. In February 2016, the Major Energy Companies settled several claims with respect to allegations of misleading marketing practices with the Maryland Public Service Commission for $0.3 million . The $0.3 million is included in accrued expenses in the condensed combined balance sheet of the Major Energy Companies at December 31, 2015 and was paid in April 2016. Prospectively, the Commission requires the Major Energy Companies to report monthly to the Maryland Public Service Commission on number of customer complaints. The settlement of $0.3 million was paid from a reserve for litigation claims established in connection with the Company’s acquisition of the Major Energy Companies, which operates as a reduction to the total purchase price. In August 2016, the Major Energy Companies settled with the Pennsylvania Public Utility Commission/Bureau of Investigation and Enforcement with respect to allegations of misleading marketing practices, for $4.1 million . The settlement includes quarterly reporting on number of complaints, as well as allowing for only fixed-rate products to be sold. The settlement was paid in August 2016 after the acquisition of the Major Energy Companies. The amount of the settlement was paid from a reserve for litigation claims established in connection with the Company’s acquisition of the Major Energy Companies, which operates as a reduction to the total purchase price.

Transactions with Affiliates

Transactions with Affiliates	9 Months Ended
	Sep. 30, 2016
Related Party Transactions [Abstract]
Transactions with Affiliates	12. Transactions with Affiliates The Company enters into transactions with and pays certain costs on behalf of affiliates that are commonly controlled in order to reduce risk, reduce administrative expense, create economies of scale, create strategic alliances and supply goods and services to these related parties. The Company also sells and purchases natural gas and electricity with affiliates. The Company presents receivables and payables with the same affiliate on a net basis in the condensed consolidated balance sheets as all affiliate activity is with parties under common control. Master Service Agreement with Retailco Services, LLC We entered into a Master Service Agreement (the “Master Service Agreement”) effective January 1, 2016 with Retailco Services, LLC ("Retailco Services"), which is wholly owned by W. Keith Maxwell III. The Master Service Agreement is for a one -year term and renews automatically for successive one -year terms unless the Master Service Agreement is terminated by either party. Retailco Services provides us with operational support services such as: enrollment and renewal transaction services; customer billing and transaction services; electronic payment processing services; customer services and information technology infrastructure and application support services under the Master Service Agreement. See "Cost Allocations" for further discussion of the fees paid in connection with the Master Service Agreement during the three and nine months ended September 30, 2016 . Accounts Receivable and Payable — Affiliates The Company recorded current accounts receivable—affiliates of $2.8 million and $1.8 million as of September 30, 2016 and December 31, 2015 , respectively, and current accounts payable—affiliates of $2.6 million and $2.0 million as of September 30, 2016 and December 31, 2015 , respectively, for certain direct billings and cost allocations for services the Company provided to affiliates, services our affiliates provided to us, and sales or purchases of natural gas and electricity with affiliates. Prepaid Assets — Affiliates The Company prepaid NuDevco Retail and Retailco for costs of certain employee benefits to be provided through the Company’s benefit plans and recorded current prepaid assets—affiliates of less than $0.1 million and $0.2 million as of September 30, 2016 and December 31, 2015 , respectively. Convertible Subordinated Notes to Affiliate In connection with the financing of the CenStar acquisition, the Company, together with Spark HoldCo, issued the CenStar Note to Retailco Acquisition Co, LLC ("RAC"), which is wholly owned by W. Keith Maxwell III, for $2.1 million on July 8, 2015. In connection with the financing of the Oasis acquisition, the Company, together with Spark HoldCo, issued the Oasis Note to RAC for $5.0 million on July 31, 2015. On October 5, 2016, RAC became irrevocably bound to convert the CenStar Note and the Oasis Note into shares of Class B common stock on January 8, 2017 and January 31, 2017, respectively. Refer to Note 7 "Debt" for further discussion. Revenues and Cost of Revenues — Affiliates The Company and an affiliate are party to an agreement whereby the Company purchases natural gas from an affiliate. Cost of revenues—affiliates, recorded in net asset optimization revenues in the condensed consolidated statements of operations for the three months ended September 30, 2016 and 2015 related to this agreement were zero and $3.4 million , respectively. Cost of revenues—affiliates, recorded in net asset optimization revenues in the condensed consolidated statements of operations for the nine months ended September 30, 2016 and 2015 related to this agreement were $1.6 million and $9.6 million , respectively. The Company also purchases natural gas at a nearby third-party plant inlet that is then sold to an affiliate. Revenues—affiliates, recorded in net asset optimization revenues in the condensed consolidated statements of operations for the three months ended September 30, 2016 and 2015 related to these sales were zero and $0.3 million , respectively. Revenues—affiliates, recorded in net asset optimization revenues in the condensed consolidated statements of operations for the nine months ended September 30, 2016 and 2015 related to these sales were $0.2 million and $0.9 million , respectively. Additionally, the Company entered into a natural gas transportation agreement with another affiliate at its pipeline, whereby the Company transports retail natural gas and pays the higher of (i) a minimum monthly payment or (ii) a transportation fee per MMBtu times actual volumes transported. The current transportation agreement renews annually on February 28 at a fixed rate per MMBtu without a minimum monthly payment. While this transportation agreement remains in effect, this entity was no longer an affiliate as Mr. Maxwell terminated his interest in the affiliate on May 16, 2016. Cost of revenues—affiliates, recorded in retail cost of revenues in the condensed consolidated statements of operations related to this activity, was less than $0.1 million for each of the periods from April 1, 2016 to May 16, 2016 and from January 1, 2016 to May 16, 2016. Cost Allocations The Company paid certain expenses on behalf of affiliates, which are reimbursed by the affiliates to the Company, and our affiliates paid certain expenses on our behalf, which are reimbursed by us. These transactions include costs that can be specifically identified and certain allocated overhead costs associated with general and administrative services, including executive management, due diligence work, recurring management consulting, facilities, banking arrangements, professional fees, insurance, information services, human resources and other support departments to or from the affiliates. Where costs incurred on behalf of the affiliate or us could not be determined by specific identification for direct billing, the costs were primarily allocated to the affiliated entities or us based on percentage of departmental usage, wages or headcount. The total net amount direct billed and allocated from affiliates was $3.2 million and $12.8 million , respectively, for the three and nine months ended September 30, 2016 . Of this total net amount, the Company recorded general and administrative expense of $2.9 million and $11.0 million for the three and nine months ended September 30, 2016 , respectively, in the condensed consolidated statement of operations in connection with fees paid, net of damages charged, under the Master Service Agreement with Retailco Services. Additionally under the Master Service Agreement, we capitalized $0.2 million and $1.3 million of property and equipment for the application, development and implementation of various systems during three and nine months ended September 30, 2016 . The remaining amount was direct billed and allocated from other affiliates and recorded as general and administrative expense in the condensed consolidated statement of operations. The total net amount direct billed and allocated to affiliates was $0.6 million and $2.3 million , respectively, for the three and nine months ended September 30, 2015 , which was recorded as a reduction in general and administrative expense in the condensed consolidated statement of operations. Distributions to and Contributions from Affiliates During the nine months ended September 30, 2016 and 2015 , the Company made distributions to NuDevco Retail and Retailco of $19.9 million (includes $10.1 million to Retailco and $9.8 million to NG&E) and $11.7 million in conjunction with the payment of its quarterly distributions attributable to its holding of Spark HoldCo units. During the nine months ended September 30, 2016 , the Company made distributions to NuDevco Retail and Retailco for gross-up distributions of $6.3 million in connection with distributions made between Spark HoldCo and Spark Energy, Inc. for payment of income taxes incurred by Spark Energy, Inc. Proceeds from Disgorgement of Stockholder Short-swing Profits During the three and nine months ended September 30, 2016 , the Company received $0.3 million and $0.9 million , respectively, from Retailco for the disgorgement of stockholder short-swing profits under Section 16(b) under the Exchange Act. The amount was recorded as an increase to additional paid-in capital in our condensed consolidated balance sheet. Class B Common Stock In connection with the Major Energy Companies acquisition, the Company issued Retailco 2,000,000 shares of Class B common stock (and a corresponding number of Spark HoldCo units) to NG&E. In connection with the financing of the Provider Companies acquisition, the Company sold 699,742 shares of Class B common stock (and a corresponding number of Spark HoldCo units) sold to RetailCo, valued at $14.0 million based on a value of $20 per share. See further discussion in Note 3. Tax Receivable Agreement The Company is party to a Tax Receivable Agreement with Spark HoldCo, NuDevco Retail Holdings and NuDevco Retail. This agreement generally provides for the payment by the Company to Retailco, LLC (as successor to NuDevco Retail Holdings) and NuDevco Retail of 85% of the net cash savings, if any, in U.S. federal, state and local income tax or franchise tax that the Company actually realizes (or is deemed to realize in certain circumstances) in future periods as a result of (i) any tax basis increases resulting from the purchase by the Company of Spark HoldCo units from NuDevco Retail Holdings, (ii) any tax basis increases resulting from the exchange of Spark HoldCo units for shares of Class A common stock pursuant to the Exchange Right (or resulting from an exchange of Spark HoldCo units for cash pursuant to the Cash Option) and (iii) any imputed interest deemed to be paid by the Company as a result of, and additional tax basis arising from, any payments the Company makes under the Tax Receivable Agreement. The Company retains the benefit of the remaining 15% of these tax savings. See Note 10 “Taxes” for further discussion. In certain circumstances, the Company may defer or partially defer any payment due (a “TRA Payment”) to the holders of rights under the Tax Receivable Agreement, which are currently Retailco and NuDevco Retail. During the five -year period ending September 30, 2019, the Company will defer all or a portion of any TRA Payment owed pursuant to the Tax Receivable Agreement to the extent that Spark HoldCo does not generate sufficient Cash Available for Distribution (as defined below) during the four-quarter period ending September 30th of the applicable year in which the TRA Payment is to be made in an amount that equals or exceeds 130% (the “TRA Coverage Ratio”) of the Total Distributions (as defined below) paid in such four-quarter period by Spark HoldCo. For purposes of computing the TRA Coverage Ratio: • “Cash Available for Distribution” is generally defined as the Adjusted EBITDA of Spark HoldCo for the applicable period, less (i) cash interest paid by Spark HoldCo, (ii) capital expenditures of Spark HoldCo (exclusive of customer acquisition costs) and (iii) any taxes payable by Spark HoldCo; and • “Total Distributions” are defined as the aggregate distributions necessary to cause the Company to receive distributions of cash equal to (i) the targeted quarterly distribution the Company intends to pay to holders of its Class A common stock payable during the applicable four-quarter period, plus (ii) the estimated taxes payable by the Company during such four-quarter period, plus (iii) the expected TRA Payment payable during the calendar year for which the TRA Coverage Ratio is being tested. In the event that the TRA Coverage Ratio is not satisfied in any calendar year, the Company will defer all or a portion of the TRA Payment to NuDevco Retail or Retailco under the Tax Receivable Agreement to the extent necessary to permit Spark HoldCo to satisfy the TRA Coverage Ratio (and Spark HoldCo is not required to make and will not make the pro rata distributions to its members with respect to the deferred portion of the TRA Payment). If the TRA Coverage Ratio is satisfied in any calendar year, the Company is obligated to pay NuDevco Retail or Retailco the full amount of the TRA Payment. Following the five -year deferral period ending September 30, 2019, the Company will be obligated to pay any outstanding deferred TRA Payments to the extent such deferred TRA Payments do not exceed (i) the lesser of the Company's proportionate share of aggregate Cash Available for Distribution of Spark HoldCo during the five -year deferral period or the cash distributions actually received by the Company during the five -year deferral period, reduced by (ii) the sum of (a) the aggregate target quarterly dividends (which, for the purposes of the Tax Receivable Agreement, will be $0.3625 per share per quarter) during the five -year deferral period, (b) the Company's estimated taxes during the five -year deferral period, and (c) all prior TRA Payments and (y) if with respect to the quarterly period during which the deferred TRA Payment is otherwise paid or payable, Spark HoldCo has or reasonably determines it will have amounts necessary to cause the Company to receive distributions of cash equal to the target quarterly distribution payable during that quarterly period. Any portion of the deferred TRA Payments not payable due to these limitations will no longer be payable. We met the threshold coverage ratio required to fund the first TRA Payment to Retailco and NuDevco Retail under the Tax Receivable Agreement during the four-quarter period ending September 30, 2016, resulting in an initial TRA Payment of $1.4 million becoming due in December 2016. On November 6, 2016, Retailco and NuDevco Retail granted the Company the right to defer the TRA Payment until May 2018. During the period of time when the Company has elected to defer the TRA Payment, the outstanding payment amount will accrue interest at a rate calculated in the manner provided for under the Tax Receivable Agreement. The liability has been classified as non-current in our condensed consolidated balance sheet at September 30, 2016 . See also Note 14 "Subsequent Events."

Segment Reporting

Segment Reporting	9 Months Ended
	Sep. 30, 2016
Segment Reporting [Abstract]
Segment Reporting	13. Segment Reporting The Company’s determination of reportable business segments considers the strategic operating units under which the Company makes financial decisions, allocates resources and assesses performance of its retail and asset optimization businesses. The Company’s reportable business segments are retail natural gas and retail electricity. The retail natural gas segment consists of natural gas sales to, and natural gas transportation and distribution for, residential and commercial customers. Asset optimization activities, considered an integral part of securing the lowest price natural gas to serve retail gas load, are part of the retail natural gas segment. The Company recorded asset optimization revenues of $26.0 million and $27.7 million and asset optimization cost of revenues of $25.9 million and $28.2 million for the three months ended September 30, 2016 and 2015 , respectively, which are presented on a net basis in asset optimization revenues. The Company recorded asset optimization revenues of $89.1 million and $120.7 million and asset optimization cost of revenues of $89.1 million and $119.4 million for the nine months ended September 30, 2016 and 2015 , respectively, which are presented on a net basis in asset optimization revenues. The retail electricity segment consists of electricity sales and transmission to residential and commercial customers. Corporate and other consists of expenses and assets of the retail natural gas and retail electricity segments that are managed at a consolidated level such as general and administrative expenses. To assess the performance of the Company’s operating segments, the Chief Operating Decision Maker analyzes retail gross margin. The Company defines retail gross margin as operating income plus (i) depreciation and amortization expenses and (ii) general and administrative expenses, less (i) net asset optimization revenues (expenses), (ii) net gains (losses) on derivative instruments, and (iii) net current period cash settlements on derivative instruments. The Company deducts net gains (losses) on derivative instruments, excluding current period cash settlements, from the retail gross margin calculation in order to remove the non-cash impact of net gains and losses on derivative instruments. Retail gross margin is a primary performance measure used by our management to determine the performance of our retail natural gas and electricity business by removing the impacts of our asset optimization activities and net non-cash income (loss) impact of our economic hedging activities. As an indicator of our retail energy business’ operating performance, retail gross margin should not be considered an alternative to, or more meaningful than, operating income, as determined in accordance with GAAP. Below is a reconciliation of retail gross margin to income before income tax expense (in thousands): Three Months Ended September 30, Nine Months Ended September 30, 2016 2015 2016 2015 Reconciliation of Retail Gross Margin to Income before taxes Income before income tax expense $ 7,930 $ 6,455 $ 48,388 $ 24,442 Interest and other income (240 ) (5 ) (340 ) (326 ) Interest expense 1,270 800 2,855 1,415 Operating Income 8,960 7,250 50,903 25,531 Depreciation and amortization 8,295 7,557 23,337 17,873 General and administrative 18,009 15,493 55,188 43,909 Less: Net asset optimization (expenses) revenues 108 (545 ) (42 ) 1,317 Net, Gain (losses) on non-trading derivative instruments (1,183 ) 132 2,519 (5,876 ) Net, Cash settlements on non-trading derivative instruments (8,889 ) 4,035 3,341 12,643 Retail Gross Margin $ 45,228 $ 26,678 $ 123,610 $ 79,229 The Company uses retail gross margin and net asset optimization revenues as the measure of profit or loss for its business segments. This measure represents the lowest level of information that is provided to the chief operating decision maker for our reportable segments. Financial data for business segments are as follows (in thousands): Three Months Ended September 30, 2016 Retail Retail Corporate Eliminations Spark Retail Total Revenues $ 144,243 $ 13,851 $ — $ — $ 158,094 Retail cost of revenues 113,600 9,230 — — 122,830 Less: Net asset optimization expenses — 108 — — 108 Gains on non-trading derivatives 68 (1,251 ) — — (1,183 ) Current period settlements on non-trading derivatives (8,614 ) (275 ) — — (8,889 ) Retail Gross Margin $ 39,189 $ 6,039 $ — $ — $ 45,228 Three Months Ended September 30, 2015 Retail Retail Corporate Eliminations Spark Retail Total revenues $ 76,913 $ 14,354 $ — $ — $ 91,267 Retail cost of revenues 50,787 10,180 — — 60,967 Less: Net asset optimization expenses — (545 ) — — (545 ) Gains (losses) gains on non-trading derivatives 3,891 (3,759 ) — — 132 Current period settlements on non-trading derivatives 3,310 725 — — 4,035 Retail Gross Margin $ 18,925 $ 7,753 $ — $ — $ 26,678 Nine Months Ended September 30, 2016 Retail Retail Corporate Eliminations Spark Retail Total revenues $ 293,571 $ 84,450 $ — $ — $ 378,021 Retail cost of revenues 209,617 38,976 — — 248,593 Less: Net asset optimization expenses — (42 ) — — (42 ) (Losses) gains on non-trading derivatives 997 1,522 — — 2,519 Current period settlements on non-trading derivatives 731 2,610 — — 3,341 Retail Gross Margin $ 82,226 $ 41,384 $ — $ — $ 123,610 Total Assets at September 30, 2016 $ 474,575 $ 185,145 $ 170,074 $ (492,063 ) $ 337,731 Goodwill at September 30, 2016 $ 77,271 $ 2,285 $ — $ — $ 79,556 Nine Months Ended September 30, 2015 Retail Retail Corporate Eliminations Spark Retail Total revenues $ 170,060 $ 93,253 $ — $ — $ 263,313 Retail cost of revenues 122,864 53,136 — — 176,000 Less: Net asset optimization revenues — 1,317 — — 1,317 (Losses) gains on non-trading derivatives (2,201 ) (3,675 ) — — (5,876 ) Current period settlements on non-trading derivatives 5,727 6,916 — — 12,643 Retail Gross Margin $ 43,670 $ 35,559 $ — $ — $ 79,229 Total Assets at December 31, 2015 $ 150,245 $ 113,583 $ 88,823 $ (190,417 ) $ 162,234 Goodwill at December 31, 2015 $ 16,476 $ 1,903 $ — $ — $ 18,379

Subsequent Events

Subsequent Events	9 Months Ended
	Sep. 30, 2016
Subsequent Events [Abstract]
Subsequent Events	14. Subsequent Events Conversion of CenStar and Oasis Notes On October 5, 2016, RAC issued to the Company an irrevocable commitment to convert the CenStar Note and the Oasis Note into 134,731 and 383,090 shares of Class B common stock (and related Spark HoldCo units), respectively, on January 8, 2017 and January 31, 2017, respectively. Declaration of Dividends On October 27, 2016 , the Company declared a quarterly dividend of $0.3625 to holders of record of our Class A common stock on December 1, 2016 and payable on December 14, 2016 . TRA Payment Deferral On November 6, 2016, Retailco and NuDevco Retail waived their right to receive an approximate $1.4 million payment for the Tax Receivable Agreement that was due from the Company on December 15, 2016. The Company has been given the right to defer this payment for up to eighteen months, subject to interest at the rate agreed to in the Tax Receivable Agreement. The liability has been classified as non-current as of September 30, 2016.

Basis of Presentation (Policies

Basis of Presentation (Policies)	9 Months Ended
	Sep. 30, 2016
Accounting Policies [Abstract]
Basis of Presentation	The accompanying interim unaudited condensed consolidated financial statements (“interim statements”) of the Company have been prepared in accordance with accounting principles generally accepted in the United States (“GAAP”) and pursuant to the rules and regulations of the Securities and Exchange Commission (“SEC"), and include all wholly owned subsidiaries. This information should be read in conjunction with our consolidated financial statements and notes contained in our annual report on Form 10-K for the year ended December 31, 2015 . The Company's unaudited condensed consolidated financial statements are presented on a consolidated basis and include all wholly-owned and controlled subsidiaries. We account for investments over which we have significant influence but not a controlling financial interest using the equity method of accounting. The preparation of the financial statements in conformity with GAAP requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent liabilities at the date of the interim financial statements and the reported amounts of revenues and expenses during the reporting period. Actual results could differ from those estimates. Effects on the business, financial condition and results of operations resulting from revisions to estimates are recognized when the facts that give rise to the revision become known. The information furnished herein reflects all normal recurring adjustments that are, in the opinion of management, necessary for a fair presentation of the condensed consolidated financial statements.
Transactions with Affiliates	Transactions with Affiliates The Company also enters into transactions with and pays certain costs on behalf of affiliates that are commonly controlled by W. Keith Maxwell III, and these affiliates enter into transactions with and pay certain costs on our behalf, in order to reduce risk, reduce administrative expense, create economies of scale, create strategic alliances and supply goods and services among these related parties. These transactions include, but are not limited to, employee benefits provided through the Company’s benefit plans, insurance plans, leased office space, administrative salaries for management due diligence work, recurring management consulting, and accounting, tax, legal, or technology services based on services provided, departmental usage, or headcount, which are considered reasonable by management. As such, the accompanying condensed consolidated financial statements include costs that have been incurred by the Company and then directly billed or allocated to affiliates, and costs that have been incurred by our affiliates and then directly billed or allocated to us, and are recorded net in general and administrative expense on the condensed consolidated statements of operations with a corresponding accounts receivable—affiliates or accounts payable—affiliates, respectively, recorded in the condensed consolidated balance sheets. Additionally, the Company enters into transactions with certain affiliates for sales or purchases of natural gas and electricity, which are recorded in retail revenues, retail cost of revenues and net asset optimization revenues in the condensed consolidated statements of operations with a corresponding accounts receivable—affiliate or accounts payable—affiliate in the condensed consolidated balance sheets.
Presentation of the Acquisition	Presentation of the Acquisition of Oasis Power Holdings, LLC On May 12, 2015, RAC, an affiliate of the Company, completed the acquisition of 100% of the membership interests of Oasis. Also, on May 12, 2015, Spark HoldCo entered into a Membership Interest Purchase Agreement (the "Oasis Purchase Agreement") with RAC for the purchase of all the membership interests of Oasis. Spark HoldCo completed the acquisition of Oasis from RAC on July 31, 2015. Because the acquisition of Oasis was a transfer of equity interests of entities under common control, the Company's historical financial statements reflect operations of Oasis from May 12, 2015 to July 31, 2015. The unaudited condensed consolidated financial statements for this recast period had been prepared from RAC's historical cost-basis and may not necessarily be indicative of the actual results of operations that would have occurred had the Company owned Oasis during the recast period. Presentation of the Acquisition of Major Energy Companies On April 15, 2016, National Gas & Electric, LLC (“NG&E”), an affiliate of the Company , completed the acquisition of 100% of the membership interests of Major Energy Companies. On May 3, 2016, Spark HoldCo and Retailco entered into a Membership Interest Purchase Agreement (the "Major Purchase Agreement") with NG&E for the purchase of all of the membership interests of the Major Energy Companies. Spark HoldCo and Retailco completed the acquisition of the Major Energy Companies from NG&E on August 23, 2016. Because the acquisition of the Major Energy Companies was a transfer of equity interests of entities under common control, the Company's historical financial statements have been recast in this Form 10-Q to include the results attributable to Major Energy Companies from April 15, 2016. The unaudited condensed consolidated financial statements for this recast period have been prepared from Major Energy Companies' historical cost-basis and may not necessarily be indicative of the actual results of operations that would have occurred had the Company owned the Major Energy Companies during the recast period.
Subsequent Events	Subsequent Events Subsequent events have been evaluated through the date these financial statements are issued. Any material subsequent events that occurred prior to such date have been properly recognized or disclosed in the condensed consolidated financial statements.
Reclassification	Reclassification Certain amounts in the prior period financial statements have been reclassified to conform to the current period presentation. These reclassifications had no effect on reported earnings.
Recent Accounting Pronouncements	Recent Accounting Pronouncements In May 2014, the Financial Accounting Standards Board (“FASB") issued Accounting Standards Update (“ASU”) No. 2014-09 ("ASU 2014-09"), Revenue from Contracts with Customers (Topic 606) , which requires an entity to recognize the amount of revenue to which it expects to be entitled for the transfer of promised goods or services to customers. ASU 2014-09 will replace most existing revenue recognition guidance in GAAP. The standard permits the use of either the retrospective or cumulative effect transition method. In August 2015, the FASB issued ASU No. 2015-14, Revenue from Contracts with Customers (Topic 606): Deferral of the Effective Date , which deferred the effective date to periods beginning after December 15, 2017. Early adoption is permitted only as of annual reporting periods beginning after December 15, 2016. The Company is selecting a transition method and determining the effect of the standard on its ongoing financial reporting. The FASB issued additional amendments to ASU 2014-09, as amended by ASU 2015-14: • March 2016 - ASU No. 2016-08, Revenue from Contracts with Customers (Topic 606): Principal versus Agent Considerations (Reporting Revenue Gross versus Net) ("ASU 2016-08"). ASU 2016-08 clarifies the implementation guidance on principal versus agent considerations. The guidance includes indicators to assist an entity in determining whether it controls a specified good or service before it is transferred to customers. • April 2016 - ASU No. 2016-10, Revenue from Contracts with Customers (Topic 606): Identifying Performance Obligations and Licensing ("ASU 2016-10"). ASU 2016-10 covers two specific topics: performance obligations and licensing. This amendment includes guidance on immaterial promised goods or services, shipping or handling activities, separately identifiable performance obligations, functional or symbolic intellectual property licenses, sales-based and usage-based royalties, license restrictions (time, use, geographical) and licensing renewals. • May 2016 - ASU No. 2016-12, Revenue from Contracts with Customers (Topic 606): Narrow Scope Improvements and Practical Expedients ("ASU 2016-12"). ASU 2016-12 clarifies certain core recognition principles including collectability, sales tax presentation, noncash consideration, contract modifications and completed contracts at transition and disclosures no longer required if the full retrospective transition method is adopted. In July 2015, the FASB issued ASU No. 2015-11, Inventory (Topic 330): Simplifying the Measurement of Inventory (“ASU 2015-11”). ASU 2015-11 amends existing guidance to require subsequent measurement of inventory at the lower of cost and net realizable value. Net realizable value is the estimated selling price in the ordinary course of business, less reasonably predictable costs of completion, disposal, and transportation. ASU 2015-11 is effective for fiscal years, and for interim periods within those fiscal years, beginning after December 15, 2016. Earlier application is permitted as of the beginning of an interim or annual reporting period. The Company does not expect the adoption of ASU 2015-11 will have a material effect on its consolidated financial statements. In February 2016, the FASB issued ASU No. 2016-02, Leases (Topic 842) ("ASU 2016-02") . ASU 2016-02 amends existing accounting standards for lease accounting by requiring entities to include substantially all leases on the balance sheet by requiring the recognition of right-of-use assets and lease liabilities for all leases. Entities may elect to not recognize leases with a maximum possible term of less than 12 months. For lessees, a lease is classified as finance or operating and the asset and liability are initially measured at the present value of the lease payments. For lessors, accounting for leases is largely unchanged from previous guidance. ASU 2016-02 also requires qualitative disclosures along with certain specific quantitative disclosures for both lessees and lessors. The amendments in this ASU are effective for fiscal years beginning after December 15, 2018, with early adoption permitted, and are effective for interim periods in the year of adoption. The ASU should be applied using a modified retrospective approach, which requires lessees and lessors to recognize and measure leases at the beginning of the earliest period presented. The Company is currently evaluating the impact of adopting this guidance on its consolidated financial statements. In March 2016, the FASB issued ASU No. 2016-09, Compensation - Stock Compensation (Topic 718) ("ASU 2016-09"). ASU 2016-09 includes provisions intended to simplify various aspects of accounting for shared-based payments, including income tax consequences, classification of awards as either equity or liability and classification on the statement of cash flows. Under current U.S. GAAP, excess tax benefits are currently recorded in equity and presented as a financing activity on the statement of cash flows. Upon adoption, excess tax benefits for share-based payments will be recorded as a reduction of income taxes and reflected in operating cash flows. This guidance is effective for annual and interim reporting periods of public entities beginning after December 15, 2016, with early adoption permitted. The Company is currently evaluating the impact of adopting this guidance on its consolidated financial statements. In June 2016, the FASB issued ASU No. 2016-13, Financial Instruments - Credit Losses (Topic 326): Measurement of Credit Losses on Financial Instruments ("ASU 2016-13"). ASU 2016-13 requires entities to use a current expected credit loss ("CECL") model, which is a new impairment model based on expected losses rather than incurred losses. The model requires financial assets measured at amortized cost be presented at the net amount expected to be collected. The allowance for credit losses is a valuation account that is deducted from the amortized cost basis. The income statement reflects the measurement of credit losses for newly recognized financial assets, as well as the expected credit losses during the period. The measurement of expected losses is based upon historical experience, current conditions, and reasonable and supportable forecasts that affect the collectability of the reported amount. This guidance is effective for interim and annual reporting periods beginning after December 15, 2019, with early adoption permitted for annual reporting periods beginning after December 15, 2018. The Company is currently evaluating the impact of adopting this guidance on its consolidated financial statements. In August 2016, the FASB issued ASU No. 2016-15, Statement of Cash Flows (Topic 230): Classification of Certain Cash Receipts and Cash Payments ("ASU 2016-15"). ASU 2016-15 provides guidance on the presentation and classification of eight specific cash flow issues in the statement of cash flows. Those issues are cash payment for debt prepayment or debt extinguishment costs; settlement of zero-coupon debt instrument or other debt instrument with coupon interest rates that are insignificant in relation to the effective interest rate of the borrowing; contingent consideration payments made after a business combination; cash proceeds from the settlement of insurance claims, cash received from settlement of corporate-owned life insurance policies; distribution received from equity method investees; beneficial interest in securitization transactions; and classification of cash receipts and payments that have aspects of more than one class of cash flows. The guidance is effective for interim and annual reporting periods beginning after December 15, 2017, with early adoption permitted. This ASU should be applied using a retrospective transition method for each period presented. The Company is currently evaluating the impact of adopting this guidance on its consolidated financial statements. In October 2016, the FASB issued ASU No. 2016-16, Income Taxes (Topic 740): Intra-Entity Transfers of Assets Other Than Inventory (“ASU 2016-16”). ASU 2016-16 requires immediate recognition of the current and deferred income tax consequences of intercompany asset transfers other than inventory. Current U.S. GAAP prohibits the recognition of current and deferred income taxes for an intra-entity asset transfer until the asset has been sold to an outside party. This guidance is effective for annual and interim reporting periods of public entities beginning after December 15, 2017, with early adoption permitted as of the beginning of an annual reporting period for which financial statements (interim or annual) have not been issued or made available for issuance. This ASU should be applied using a modified retrospective basis through a cumulative-effect adjustment directly to retained earnings as of the beginning of the period of adoption. The Company is currently evaluating the impact of adopting this guidance on its consolidated financial statements.

Acquisitions (Tables)

Acquisitions (Tables)	9 Months Ended
	Sep. 30, 2016
Business Combinations [Abstract]
Schedule of Recognized Identified Assets Acquired and Liabilities Assumed	Accordingly, the assets acquired and liabilities assumed were based on their historical values as of August 23, 2016. NG&E acquired the Major Energy Companies on April 15, 2016 and the fair value of the net assets acquired were as follows (in thousands): Cash $ 17,368 Property and equipment 14 Intangible assets - customer relationships & non-compete agreements 24,271 Other assets - trademarks 4,973 Non-current deferred tax assets 1,042 Goodwill 35,137 Net working capital, net of cash acquired (6,345 ) Fair value of derivative liabilities (7,260 ) Total $ 69,200 The allocation of the purchase consideration is as follows (in thousands): Cash $ 51 Net working capital, net of cash acquired 1,229 Intangible assets - customer relationships and non-compete agreements 24,417 Intangible assets - trademark 529 Goodwill 26,040 Fair value of derivative liabilities (18,163 ) Total $ 34,103
Business Acquisition, Pro Forma Information	The following unaudited pro forma revenue and earnings summary presents consolidated information of the Company as if the acquisition had occurred on January 1, 2015 (in thousands): Three Months Ended Nine Months Ended September 30, September 30, 2016 2015 2016 2015 Revenue $158,094 $136,590 $434,997 $411,357 Earnings $2,878 $2,567 $17,071 $6,503

Equity (Tables)

Equity (Tables)	9 Months Ended
	Sep. 30, 2016
Equity [Abstract]
Schedule of Ownership Interests Percentage	From January 1, 2015 through September 30, 2016 , the Company and NuDevco Retail and Retailco owned the following economic interests in Spark HoldCo: The Company NuDevco Retail and Retailco (1) From January 1, 2015 to May 3, 2015 21.82 % 78.18 % From May 4, 2015 to December 30, 2015 22.37 % 77.63 % From December 31, 2015 to February 2, 2016 22.49 % 77.51 % From February 3, 2016 to March 31, 2016 29.70 % 70.30 % From April 1, 2016 to May 3, 2016 42.14 % 57.86 % From May 4, 2016 to May 17, 2016 42.46 % 57.54 % From May 18, 2016 to May 24, 2016 42.64 % 57.36 % From May 25, 2016 to June 7, 2016 42.66 % 57.34 % From June 8, 2016 to June 30, 2016 46.23 % 53.77 % From July 1, 2016 to July 14, 2016 46.23 % 53.77 % From July 15, 2016 to July 31, 2016 46.32 % 53.68 % From August 1, 2016 to August 17, 2016 44.12 % 55.88 % From August 18, 2016 to August 22, 2016 44.13 % 55.87 % From August 23, 2016 to September 22, 2016 38.85 % 61.15 % From September 23, 2016 to September 30, 2016 38.85 % 61.15 % (1) In January 2016, Retailco succeeded to the interest of NuDevco Retail Holdings of its Class B common stock and an equal number of Spark HoldCo units it held pursuant to a series of transfers.
Schedule of Noncontrolling Interest	The following table summarizes the portions of net income and income tax expense (benefit) attributable to non-controlling interest (in thousands): Three Months Ended September 30, Nine Months Ended September 30, 2016 2015 2016 2015 Net income allocated to non-controlling interest $ 6,569 $ 5,011 $ 35,356 $ 19,058 Income tax expense (benefit) allocated to non-controlling interest (49 ) 450 517 99 Net income attributable to non-controlling interest $ 6,618 $ 4,561 $ 34,839 $ 18,959
Earnings Per Share	The following table presents the computation of earnings per share for the three and nine months ended September 30, 2016 and 2015 (in thousands, except per share data): Three Months Ended September 30, Nine Months Ended September 30, 2016 2015 2016 2015 Net income attributable to stockholders of Class A common stock $ 183 $ 1,314 $ 6,697 $ 3,884 Basic weighted average Class A common shares outstanding 6,491 3,097 5,434 3,053 Basic EPS attributable to stockholders $ 0.03 $ 0.42 $ 1.23 $ 1.27 Net income attributable to stockholders of Class A common stock $ 183 $ 1,314 $ 6,697 $ 3,884 Effect of conversion of Class B common stock to shares of Class A common stock, net of tax effect — 3,605 — 11,734 Effect of conversion of convertible subordinated notes into shares of Class B common stock and shares of Class B common stock into shares of Class A common stock, net of tax effect (467 ) (520 ) (358 ) (436 ) Diluted net income (loss) attributable to stockholders of Class A common stock (284 ) 4,399 6,339 15,182 Basic weighted average Class A common shares outstanding 6,491 3,097 5,434 3,053 Effect of dilutive Class B common stock — 10,750 — 10,750 Effect of dilutive convertible subordinated notes into shares of Class B common stock and shares of Class B common stock into shares of Class A common stock 505 351 505 118 Effect of dilutive restricted stock units 59 34 111 27 Diluted weighted average shares outstanding 7,055 14,232 6,050 13,948 Diluted EPS attributable to stockholders $ (0.04 ) $ 0.31 $ 1.05 $ 1.09
Carrying Amounts and Classification of Assets and Liabilities of Variable Interest Entity	The following table includes the carrying amounts and classification of the assets and liabilities of Spark HoldCo that are included in the Company's condensed consolidated balance sheet as of September 30, 2016 (in thousands): September 30, 2016 Assets Current assets: Cash and cash equivalents $ 16,850 Accounts receivable 79,744 Other current assets 63,094 Total current assets 159,688 Non-current assets: Goodwill 79,556 Other assets 42,485 Total non-current assets 122,041 Total Assets $ 281,729 Liabilities Current liabilities: Accounts payable and accrued liabilities $ 78,511 Intercompany payable with Spark Energy, Inc. 5,555 Current portion of Senior Credit Facility 49,269 Contingent consideration 11,464 Other current liabilities 20,021 Total current liabilities 164,820 Long-term liabilities: Convertible subordinated notes to affiliates 6,542 Contingent consideration 7,472 Other long-term liabilities 1,467 Total long-term liabilities 15,481 Total Liabilities $ 180,301

Property and Equipment (Tables)

Property and Equipment (Tables)	9 Months Ended
	Sep. 30, 2016
Property, Plant and Equipment [Abstract]
Schedule of Property and Equipment	Property and equipment consist of the following amounts: Estimated September 30, 2016 December 31, 2015 (years) (In thousands) Information technology 2 – 5 $ 29,228 $ 27,392 Leasehold improvements 2 – 5 4,568 4,568 Furniture and fixtures 2 – 5 1,012 1,007 Total 34,808 32,967 Accumulated depreciation (29,942 ) (28,491 ) Property and equipment—net $ 4,866 $ 4,476

Goodwill, Customer Relationsh26

Goodwill, Customer Relationships and Trademarks (Tables)	9 Months Ended
	Sep. 30, 2016
Goodwill and Intangible Assets Disclosure [Abstract]
Schedule of Goodwill and Intangible Assets	Goodwill, customer relationships and trademarks consist of the following amounts (in thousands): September 30, 2016 December 31, 2015 Goodwill $ 79,556 $ 18,379 Customer relationships - Acquired (1) Cost $ 63,571 $ 14,883 Accumulated amortization (22,022 ) (4,503 ) Customer relationships - Acquired, net $ 41,549 $ 10,380 Customer relationships - Other (2) Cost $ 4,320 $ 4,320 Accumulated amortization (2,349 ) (1,271 ) Customer relationships - Other, net $ 1,971 $ 3,049 Trademarks (3) Cost $ 6,770 $ 1,268 Accumulated amortization (311 ) (74 ) Trademarks, net $ 6,459 $ 1,194 (1) Customer relationships - Acquired represents those customer acquisitions accounted for under the acquisition method in accordance with ASC 805. (2) Customer relationships - Other represent portfolios of customer contracts not accounted for in accordance with ASC 805 as these acquisitions were not in conjunction with the acquisition of businesses. (3) Trademarks reflect values associated with the recognition and positive reputation of acquired businesses accounted for as part of the acquisition method in accordance with ASC 805 through the acquisition of CenStar, Oasis, the Major Energy Companies and the Provider Companies. These trademarks are recorded as other assets in the condensed consolidated balance sheets. Changes in goodwill, customer relationships and trademarks consisted of the following (in thousands): Goodwill Customer Relationships - Acquired Customer Relationships - Others Trademarks Balance at December 31, 2015 $ 18,379 $ 10,380 $ 3,049 $ 1,194 Additions 61,177 48,688 — 5,502 Amortization expense — (17,519 ) (1,078 ) (237 ) Balance at September 30, 2016 $ 79,556 $ 41,549 $ 1,971 $ 6,459
Estimated Future Amortization Expense of Intangible Assets	Estimated future amortization expense for customer relationships and trademarks at September 30, 2016 is as follows (in thousands): Year ending December 31, 2016 $ 10,117 2017 12,913 2018 10,337 2019 5,892 2020 2,895 > 5 years 7,825 Total $ 49,979

Debt (Tables)

Debt (Tables)	9 Months Ended
	Sep. 30, 2016
Debt Disclosure [Abstract]
Schedule of Debt	Debt consists of the following amounts (in thousands): September 30, 2016 December 31, 2015 Current portion of Senior Credit Facility—Working Capital Line (1) (2) $ 26,000 $ 22,500 Current portion of Senior Credit Facility—Acquisition Line (1) (2) 23,269 5,306 Current portion of Note Payable—Pacific Summit Energy 13,445 — Total current debt 62,714 27,806 Long-term portion of Senior Credit Facility—Acquisition Line (1) — 14,592 Convertible subordinated notes to affiliate (3) 6,542 6,339 Total long-term debt 6,542 20,931 Total debt $ 69,256 $ 48,737 (1) As of September 30, 2016 and December 31, 2015 , the Company had $33.0 million and $21.5 million in letters of credit issued, respectively. (2) As of September 30, 2016 and December 31, 2015 , the weighted average interest rate on the current portion of our Senior Credit Facility was 4.38% and 3.90% , respectively. (3) During the three and nine months ended September 30, 2016 , respectively, we paid in-kind $0.2 million and $ 0.4 million of interest, which was added to the outstanding balance of the convertible subordinated notes. Unamortized discount of $0.9 million and $0.7 million at September 30, 2016 and December 31, 2015 , respectively, is related to beneficial conversion features of the convertible subordinated notes. On October 5, 2016, RAC issued to the Company an irrevocable commitment to convert the CenStar Note and the Oasis Note into shares of Class B common stock on January 8, 2017 and January 31, 2017, respectively. See Note 14 "Subsequent Events."
Components of Interest Expense	Interest expense consists of the following components for the periods indicated (in thousands): Three Months Ended September 30, Nine Months Ended September 30, 2016 2015 2016 2015 Interest incurred on Senior Credit Facility $ 712 $ 351 $ 1,435 $ 670 Commitment fees 30 44 113 141 Letters of credit fees 165 124 457 223 Amortization of deferred financing costs 231 195 465 295 Interest incurred on convertible subordinated notes to affiliate (1) 132 86 385 86 Interest Expense $ 1,270 $ 800 $ 2,855 $ 1,415 1) Includes amortization of the discount on the convertible subordinated notes to affiliates of less than $0.1 million and $0.1 million , respectively for the three and nine months ended September 30, 2016

Fair Value Measurements (Tables

Fair Value Measurements (Tables)	9 Months Ended
	Sep. 30, 2016
Fair Value Disclosures [Abstract]
Assets and Liabilities Measured at Fair Value on a Recurring Basis	The following table presents assets and liabilities measured and recorded at fair value in the Company’s condensed consolidated balance sheets on a recurring basis by and their level within the fair value hierarchy as of (in thousands): Level 1 Level 2 Level 3 Total September 30, 2016 Non-trading commodity derivative assets $ — $ 915 $ — $ 915 Trading commodity derivative assets — 939 — 939 Total commodity derivative assets $ — $ 1,854 $ — $ 1,854 Non-trading commodity derivative liabilities $ (448 ) $ (14,448 ) $ — $ (14,896 ) Trading commodity derivative liabilities (58 ) (275 ) — (333 ) Total commodity derivative liabilities $ (506 ) $ (14,723 ) $ — $ (15,229 ) Contingent payment arrangement $ — $ — $ (18,935 ) $ (18,935 ) Level 1 Level 2 Level 3 Total December 31, 2015 Non-trading commodity derivative assets $ — $ 200 $ — $ 200 Trading commodity derivative assets — 405 — 405 Total commodity derivative assets $ — $ 605 $ — $ 605 Non-trading commodity derivative liabilities $ (3,324 ) $ (7,661 ) $ — $ (10,985 ) Trading commodity derivative liabilities — (253 ) — (253 ) Total commodity derivative liabilities $ (3,324 ) $ (7,914 ) $ — $ (11,238 ) Contingent payment arrangement $ — $ — $ (500 ) $ (500 )

Accounting for Derivative Ins29

Accounting for Derivative Instruments (Tables)	9 Months Ended
	Sep. 30, 2016
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Volumetric Underlying Derivative Transactions	The following table summarizes the net notional volume buy/(sell) of the Company’s open derivative financial instruments accounted for at fair value, broken out by commodity, as of (in thousands): Non-trading Commodity Notional September 30, 2016 December 31, 2015 Natural Gas MMBtu 6,760 7,543 Natural Gas Basis MMBtu — 455 Electricity MWh 3,278 1,187 Trading Commodity Notional September 30, 2016 December 31, 2015 Natural Gas MMBtu (2,366 ) 8 Natural Gas Basis MMBtu 242 (455 )
Gains (Losses) on Derivative Instruments	Gains (losses) on derivative instruments, net and current period settlements on derivative instruments were as follows for the periods indicated (in thousands): Three Months Ended September 30, 2016 2015 (Loss) gain on non-trading derivatives, net $ (1,183 ) $ 132 Gain (loss) on trading derivatives, net 574 (71 ) (Loss) gain on derivatives, net (609 ) 61 Current period settlements on non-trading derivatives (1) (2) (8,889 ) 4,035 Current period settlements on trading derivatives 20 128 Total current period settlements on derivatives $ (8,869 ) $ 4,163 (1) Excludes settlements of $0.5 million and $2.0 million , respectively, for the three months ended September 30, 2016 and 2015 related to non-trading derivative liabilities assumed in the acquisitions of CenStar and Oasis. (2) Excludes settlements of $11.2 million for the three months ended September 30, 2016 related to non-trading derivative liabilities assumed in the acquisitions of the Provider Companies and Major Energy Companies. Nine Months Ended September 30, 2016 2015 Gain (loss) on non-trading derivatives, net $ 2,519 $ (5,876 ) Gain (loss) on trading derivatives, net 368 (242 ) Loss on derivatives, net 2,887 (6,118 ) Current period settlements on non-trading derivatives (1) (2) 3,341 12,643 Current period settlements on trading derivatives 86 244 Total current period settlements on derivatives $ 3,427 $ 12,887 (1) Excludes settlements of $0.6 million and $2.2 million , respectively, for the nine months ended September 30, 2016 and 2015 related to non-trading derivative liabilities assumed in the acquisitions of CenStar and Oasis. (2) Excludes settlements of $14.7 million for the nine months ended September 30, 2016 related to non-trading derivative liabilities assumed in the acquisitions of the Provider Companies and Major Energy Companies.
Offsetting Assets	The following tables summarize the fair value and offsetting amounts of the Company’s derivative instruments by counterparty and collateral received or paid as of (in thousands): September 30, 2016 Description Gross Assets Gross Net Assets Cash Net Amount Non-trading commodity derivatives $ 1,909 $ (1,312 ) $ 597 $ — $ 597 Trading commodity derivatives 952 (13 ) 939 — 939 Total Current Derivative Assets 2,861 (1,325 ) 1,536 — 1,536 Non-trading commodity derivatives 411 (93 ) 318 — 318 Total Non-current Derivative Assets 411 (93 ) 318 — 318 Total Derivative Assets $ 3,272 $ (1,418 ) $ 1,854 $ — $ 1,854 December 31, 2015 Description Gross Assets Gross Net Assets Cash Net Amount Non-trading commodity derivatives $ 589 $ (389 ) $ 200 $ — $ 200 Trading commodity derivatives 411 (6 ) 405 — 405 Total Current Derivative Assets 1,000 (395 ) 605 — 605 Non-trading commodity derivatives — — — — — Total Non-current Derivative Assets — — — — — Total Derivative Assets $ 1,000 $ (395 ) $ 605 $ — $ 605
Offsetting Liabilities	September 30, 2016 Description Gross Gross Net Cash Net Amount Non-trading commodity derivatives $ (24,955 ) $ 10,326 $ (14,629 ) $ 1,200 $ (13,429 ) Trading commodity derivatives (356 ) 23 (333 ) — (333 ) Total Current Derivative Liabilities (25,311 ) 10,349 (14,962 ) 1,200 (13,762 ) Non-trading commodity derivatives (4,532 ) 3,065 (1,467 ) — (1,467 ) Total Non-current Derivative Liabilities (4,532 ) 3,065 (1,467 ) — (1,467 ) Total Derivative Liabilities $ (29,843 ) $ 13,414 $ (16,429 ) $ 1,200 $ (15,229 ) December 31, 2015 Description Gross Gross Net Cash Net Amount Non-trading commodity derivatives $ (13,618 ) $ 3,151 $ (10,467 ) $ 100 $ (10,367 ) Trading commodity derivatives (320 ) 67 (253 ) — (253 ) Total Current Derivative Liabilities (13,938 ) 3,218 (10,720 ) 100 (10,620 ) Non-trading commodity derivatives (950 ) 332 (618 ) — (618 ) Total Non-current Derivative Liabilities (950 ) 332 (618 ) — (618 ) Total Derivative Liabilities $ (14,888 ) $ 3,550 $ (11,338 ) $ 100 $ (11,238 )

Segment Reporting (Tables)

Segment Reporting (Tables)	9 Months Ended
	Sep. 30, 2016
Segment Reporting [Abstract]
Reconciliation of Operating Profit (Loss) from Segments to Consolidated	Below is a reconciliation of retail gross margin to income before income tax expense (in thousands): Three Months Ended September 30, Nine Months Ended September 30, 2016 2015 2016 2015 Reconciliation of Retail Gross Margin to Income before taxes Income before income tax expense $ 7,930 $ 6,455 $ 48,388 $ 24,442 Interest and other income (240 ) (5 ) (340 ) (326 ) Interest expense 1,270 800 2,855 1,415 Operating Income 8,960 7,250 50,903 25,531 Depreciation and amortization 8,295 7,557 23,337 17,873 General and administrative 18,009 15,493 55,188 43,909 Less: Net asset optimization (expenses) revenues 108 (545 ) (42 ) 1,317 Net, Gain (losses) on non-trading derivative instruments (1,183 ) 132 2,519 (5,876 ) Net, Cash settlements on non-trading derivative instruments (8,889 ) 4,035 3,341 12,643 Retail Gross Margin $ 45,228 $ 26,678 $ 123,610 $ 79,229
Schedule of Segment Reporting Information, by Segment	Financial data for business segments are as follows (in thousands): Three Months Ended September 30, 2016 Retail Retail Corporate Eliminations Spark Retail Total Revenues $ 144,243 $ 13,851 $ — $ — $ 158,094 Retail cost of revenues 113,600 9,230 — — 122,830 Less: Net asset optimization expenses — 108 — — 108 Gains on non-trading derivatives 68 (1,251 ) — — (1,183 ) Current period settlements on non-trading derivatives (8,614 ) (275 ) — — (8,889 ) Retail Gross Margin $ 39,189 $ 6,039 $ — $ — $ 45,228 Three Months Ended September 30, 2015 Retail Retail Corporate Eliminations Spark Retail Total revenues $ 76,913 $ 14,354 $ — $ — $ 91,267 Retail cost of revenues 50,787 10,180 — — 60,967 Less: Net asset optimization expenses — (545 ) — — (545 ) Gains (losses) gains on non-trading derivatives 3,891 (3,759 ) — — 132 Current period settlements on non-trading derivatives 3,310 725 — — 4,035 Retail Gross Margin $ 18,925 $ 7,753 $ — $ — $ 26,678 Nine Months Ended September 30, 2016 Retail Retail Corporate Eliminations Spark Retail Total revenues $ 293,571 $ 84,450 $ — $ — $ 378,021 Retail cost of revenues 209,617 38,976 — — 248,593 Less: Net asset optimization expenses — (42 ) — — (42 ) (Losses) gains on non-trading derivatives 997 1,522 — — 2,519 Current period settlements on non-trading derivatives 731 2,610 — — 3,341 Retail Gross Margin $ 82,226 $ 41,384 $ — $ — $ 123,610 Total Assets at September 30, 2016 $ 474,575 $ 185,145 $ 170,074 $ (492,063 ) $ 337,731 Goodwill at September 30, 2016 $ 77,271 $ 2,285 $ — $ — $ 79,556 Nine Months Ended September 30, 2015 Retail Retail Corporate Eliminations Spark Retail Total revenues $ 170,060 $ 93,253 $ — $ — $ 263,313 Retail cost of revenues 122,864 53,136 — — 176,000 Less: Net asset optimization revenues — 1,317 — — 1,317 (Losses) gains on non-trading derivatives (2,201 ) (3,675 ) — — (5,876 ) Current period settlements on non-trading derivatives 5,727 6,916 — — 12,643 Retail Gross Margin $ 43,670 $ 35,559 $ — $ — $ 79,229 Total Assets at December 31, 2015 $ 150,245 $ 113,583 $ 88,823 $ (190,417 ) $ 162,234 Goodwill at December 31, 2015 $ 16,476 $ 1,903 $ — $ — $ 18,379

Formation and Organization (Det

Formation and Organization (Details)	Jun. 08, 2016	Apr. 01, 2016	Feb. 03, 2016	Sep. 30, 2016vote_per_share$ / shares	Dec. 31, 2015$ / shares	Jul. 31, 2015$ / shares	Jul. 08, 2015$ / shares	May 29, 2014$ / shares	Apr. 22, 2014$ / shares
Class of Stock [Line Items]
Conversion of stock exchange ratio				1
Common Class A
Class of Stock [Line Items]
Common stock, par value (in dollars per share)				$ 0.01	$ 0.01				$ 0.01
Conversion of stock exchange ratio	1,000	1,000	1
Common Class B
Class of Stock [Line Items]
Common stock, par value (in dollars per share)				$ 0.01	$ 0.01	$ 0.01	$ 0.01	$ 0.01
Common stock voting rights | vote_per_share				1

Basis of Presentation (Details)

Basis of Presentation (Details)	Apr. 15, 2016	May 12, 2015
Oasis
Business Acquisition [Line Items]
Percentage of membership interests acquired		100.00%
Major Energy Companies
Business Acquisition [Line Items]
Percentage of membership interests acquired	100.00%

Acquisitions (Details)

Acquisitions (Details) $ / shares in Units, $ in Thousands	Aug. 01, 2016USD ($)payment$ / sharesshares	Sep. 30, 2016USD ($)		Sep. 30, 2016USD ($)		Sep. 30, 2015USD ($)	[2]	Aug. 23, 2016$ / shares
Business Acquisition [Line Items]
Contingent consideration - earnout obligations incurred in connection with the Provider Companies and Major Energy Companies acquisitions				$ 18,936	[1]	$ 0
Installment consideration payment				3,023	[1]	0
Common Class B
Business Acquisition [Line Items]
Value of shares issued		$ 40,000	[1]	40,000	[1]	$ 0
Share price (in dollars per share) | $ / shares	$ 20							$ 20
Provider Companies
Business Acquisition [Line Items]
Purchase price	$ 34,100
Initial working capital estimate	1,300
Earnout maximum	9,000	9,000		$ 9,000
Contingent consideration - earnout obligations incurred in connection with the Provider Companies and Major Energy Companies acquisitions	4,800
Installment consideration payment	$ 3,800
Number of monthly payments | payment	10
Installment payment	$ 400
Revenue		19,600
Earnings (loss) from operations		$ (6,900)
Provider Companies | Common Class B
Business Acquisition [Line Items]
Shares issued (shares) | shares	699,742
Value of shares issued	$ 14,000
Revolving Credit Facility | Acquisition Line | Provider Companies
Business Acquisition [Line Items]
Borrowing from credit facility	$ 10,600
Trademarks | Provider Companies
Business Acquisition [Line Items]
Estimated useful life (in years)	5 years
[1]	Financial information has been recast to include results attributable to the acquisition of the Major Energy Companies from an affiliate on August 23, 2016. See Notes 2 and 3 "Basis of Presentation" and "Acquisitions," respectively, for further discussion.
[2]	Financial information has been recast to include results attributable to the acquisition of Oasis Power Holdings LLC by an affiliate on May 12, 2015. See Notes 2 "Basis of Presentation" for further discussion.

Acquisitions Purchase Price All

Acquisitions Purchase Price Allocation (Details) - USD ($) $ in Thousands	Sep. 30, 2016	Aug. 01, 2016	Dec. 31, 2015
Business Acquisition [Line Items]
Goodwill	$ 79,556		$ 18,379
Provider Companies
Business Acquisition [Line Items]
Cash		$ 51
Net working capital, net of cash acquired		1,229
Goodwill		26,040
Fair value of derivative liabilities		(18,163)
Business Combination, Recognized Identifiable Assets Acquired, Goodwill, and Liabilities Assumed, Net		34,103
Customer Relationships and Non-compete Agreements | Provider Companies
Business Acquisition [Line Items]
Other assets - trademarks		24,417
Trademarks | Provider Companies
Business Acquisition [Line Items]
Other assets - trademarks		$ 529

Acquisitions - Acquisition of M

Acquisitions - Acquisition of Major Energy Companies - Narrative (Details) $ / shares in Units, $ in Thousands	Aug. 23, 2016USD ($)utility$ / sharesshares	Sep. 30, 2016USD ($)	Sep. 30, 2016USD ($)		Sep. 30, 2015USD ($)	Aug. 01, 2016$ / shares
Combination of Entities under Common Control, by Combination [Line Items]
Amount recorded as equity transaction			$ (6,040)	[1]	$ 0
Major Energy Companies
Combination of Entities under Common Control, by Combination [Line Items]
Number of utilities | utility	43
Consideration amount	$ 63,200
Working capital	4,300
Litigation reserve	5,000
Installment and earnout payments (up to)	35,000
Installment and earnout payments purchase date value	13,100
Amount recorded as equity transaction	(6,000)
Contributed revenues		$ 47,600	80,800
Contributed earnings		$ 5,200	$ 5,600
Major Energy Companies | Major Energy Companies
Combination of Entities under Common Control, by Combination [Line Items]
Working capital	$ 4,300
Common Class B
Combination of Entities under Common Control, by Combination [Line Items]
Share price (in dollars per share) | $ / shares	$ 20					$ 20
Common Class B | Major Energy Companies
Combination of Entities under Common Control, by Combination [Line Items]
Share earnout maximum (in shares) | shares	40,718
Value of shares for earnout	$ 800
Number of shares issued for acquisition (shares) | shares	2,000,000
Value of shares issued for acquisition	$ 40,000
Maximum | Common Class B | Major Energy Companies
Combination of Entities under Common Control, by Combination [Line Items]
Share earnout maximum (in shares) | shares	200,000
National Gas & Electric, LLC | Major Energy Companies
Combination of Entities under Common Control, by Combination [Line Items]
Initial working capital estimate	$ 10,300
[1]	Financial information has been recast to include results attributable to the acquisition of the Major Energy Companies from an affiliate on August 23, 2016. See Notes 2 and 3 "Basis of Presentation" and "Acquisitions," respectively, for further discussion.

Acquisitions - Acquisition of36

Acquisitions - Acquisition of Major Energy Companies (Details) - USD ($) $ in Thousands	Sep. 30, 2016	Apr. 15, 2016	Dec. 31, 2015
Business Acquisition [Line Items]
Goodwill	$ 79,556		$ 18,379
National Gas & Electric, LLC | Major Energy Companies
Business Acquisition [Line Items]
Cash		$ 17,368
Property and equipment		14
Intangible assets - customer relationships & non-compete agreements		24,271
Other assets - trademarks		4,973
Non-current deferred tax assets		1,042
Goodwill		35,137
Net working capital, net of cash acquired		(6,345)
Fair value of derivative liabilities		7,260
Business Combination, Recognized Identifiable Assets Acquired, Goodwill, and Liabilities Assumed, Net		$ 69,200

Acquisitions Pro Forma Informat

Acquisitions Pro Forma Information (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2016	Sep. 30, 2015
Business Combinations [Abstract]
Revenue	$ 158,094	$ 136,590	$ 434,997	$ 411,357
Earnings	$ 2,878	$ 2,567	$ 17,071	$ 6,503

Equity - Non-controlling Intere

Equity - Non-controlling Interest (Details) - The Company	Sep. 30, 2016	Aug. 22, 2016	Jul. 14, 2016	Jun. 07, 2016	May 24, 2016	May 17, 2016	Sep. 22, 2016	Aug. 17, 2016	Jul. 31, 2016	Jun. 30, 2016	May 03, 2016	Feb. 02, 2016	Mar. 31, 2016	May 03, 2015	Dec. 30, 2015
Class of Stock [Line Items]
Economic interests percentage	38.85%	44.13%	46.23%	42.66%	42.64%	42.46%	38.85%	44.12%	46.32%	46.23%	42.14%	22.49%	29.70%	21.82%	22.37%
NuDevco Retail and Retailco
Class of Stock [Line Items]
Economic interests percentage	61.15%	55.87%	53.77%	57.34%	57.36%	57.54%	61.15%	55.88%	53.68%	53.77%	57.86%	77.51%	70.30%	78.18%	77.63%

Equity - Narrative (Details)

Equity - Narrative (Details)	Sep. 23, 2016shares	Aug. 23, 2016shares	Aug. 18, 2016shares	Aug. 01, 2016shares	Jul. 15, 2016shares	Jun. 08, 2016shares	May 25, 2016shares	May 18, 2016shares	May 04, 2016shares	Apr. 01, 2016shares	Feb. 03, 2016shares	Dec. 31, 2015shares	May 04, 2015shares	Sep. 30, 2016
Class of Stock [Line Items]
Number of shares of common stock exchanged						500,000				1,725,000	1,000,000
Conversion of stock exchange ratio														1
Common Class A
Class of Stock [Line Items]
Conversion of stock exchange ratio						1,000				1,000	1
Common Stock
Class of Stock [Line Items]
Number of shares of common stock distributed of holders	383		3,019		23,030		5,000	43,683	77,814			21,430	97,193
Restricted Stock Units
Class of Stock [Line Items]
Number of shares vested	580		4,166		32,704		5,000	53,853	101,210			29,500	118,629
Restricted Stock Units | Common Stock
Class of Stock [Line Items]
Number of shares of common stock withheld	197		1,147		9,674			10,170	23,396			8,070	21,436
Provider Companies | Common Class B
Class of Stock [Line Items]
Number of shares issued for acquisition (shares)				699,742
Major Energy Purchase Agreement | Common Class B
Class of Stock [Line Items]
Number of shares issued for acquisition (shares)		2,000,000

Equity - Net Income and Income

Equity - Net Income and Income Tax on Non-controlling Interest (Details) - USD ($) $ in Thousands	3 Months Ended				9 Months Ended
	Sep. 30, 2016		Sep. 30, 2015		Sep. 30, 2016		Sep. 30, 2015
Equity [Abstract]
Net income allocated to non-controlling interest	$ 6,569		$ 5,011		$ 35,356		$ 19,058
Income tax expense (benefit) allocated to non-controlling interest	(49)		450		517		99
Net income attributable to non-controlling interest	$ 6,618	[1]	$ 4,561	[2]	$ 34,839	[1]	$ 18,959	[2]
[1]	Financial information has been recast to include results attributable to the acquisition of Major Energy Companies by an affiliate on April 15, 2016. See Notes 2 and 3 "Basis of Presentation" and "Acquisitions," respectively, for further discussion.
[2]	Financial information has been recast to include results attributable to the acquisition of Oasis Power Holdings LLC from an affiliate on May 12, 2015. See Notes 2 "Basis of Presentation" for further discussion.

Equity - Earnings per Share (De

Equity - Earnings per Share (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended				9 Months Ended
	Sep. 30, 2016		Sep. 30, 2015		Sep. 30, 2016		Sep. 30, 2015
Equity [Abstract]
Net income attributable to stockholders of Class A common stock	$ 183	[1]	$ 1,314	[2]	$ 6,697	[1]	$ 3,884	[2]
Basic weighted average Class A common shares outstanding	6,491	[1]	3,097	[2]	5,434	[1]	3,053	[2]
Basic EPS attributable to shareholders (in dollars per share)	$ 0.03	[1]	$ 0.42	[2]	$ 1.23	[1]	$ 1.27	[2]
Net income attributable to stockholders of Class A common stock	$ 183	[1]	$ 1,314	[2]	$ 6,697	[1]	$ 3,884	[2]
Effect of conversion of Class B common stock to shares of Class A common stock, net of tax effect	0		3,605		0		11,734
Effect of conversion of convertible subordinated notes into shares of Class B common stock and shares of Class B common stock into shares of Class A common stock, net of tax effect	(467)		(520)		(358)		(436)
Diluted net income (loss) attributable to stockholders of Class A common stock	$ (284)		$ 4,399		$ 6,339		$ 15,182
Basic weighted average Class A common shares outstanding	6,491	[1]	3,097	[2]	5,434	[1]	3,053	[2]
Effect of dilutive Class B common stock (in shares)	0		10,750		0		10,750
Effect of dilutive convertible subordinated notes into shares of Class B common stock and shares of Class B common stock into shares of Class A common stock	505		351		505		118
Effect of dilutive restricted stock units (in shares)	59		34		111		27
Diluted weighted average shares outstanding	7,055	[1]	14,232	[2]	6,050	[1]	13,948	[2]
Diluted EPS attributable to shareholders (in dollars per share)	$ (0.04)	[1]	$ 0.31	[2]	$ 1.05	[1]	$ 1.09	[2]
[1]	Financial information has been recast to include results attributable to the acquisition of Major Energy Companies by an affiliate on April 15, 2016. See Notes 2 and 3 "Basis of Presentation" and "Acquisitions," respectively, for further discussion.
[2]	Financial information has been recast to include results attributable to the acquisition of Oasis Power Holdings LLC from an affiliate on May 12, 2015. See Notes 2 "Basis of Presentation" for further discussion.

Equity - Classification of Asse

Equity - Classification of Assets and Liabilities (Details) - Variable Interest Entity, Primary Beneficiary $ in Thousands	Sep. 30, 2016USD ($)
Variable Interest Entity [Line Items]
Total Assets	$ 281,729
Total Liabilities	180,301
Total current assets
Variable Interest Entity [Line Items]
Total Assets	159,688
Cash and cash equivalents
Variable Interest Entity [Line Items]
Total Assets	16,850
Accounts receivable
Variable Interest Entity [Line Items]
Total Assets	79,744
Other current assets
Variable Interest Entity [Line Items]
Total Assets	63,094
Total non-current assets
Variable Interest Entity [Line Items]
Total Assets	122,041
Goodwill
Variable Interest Entity [Line Items]
Total Assets	79,556
Other assets
Variable Interest Entity [Line Items]
Total Assets	42,485
Total current liabilities
Variable Interest Entity [Line Items]
Total Liabilities	164,820
Accounts payable and accrued liabilities
Variable Interest Entity [Line Items]
Total Liabilities	78,511
Intercompany payable with Spark Energy, Inc.
Variable Interest Entity [Line Items]
Total Liabilities	5,555
Current portion of Senior Credit Facility
Variable Interest Entity [Line Items]
Total Liabilities	49,269
Contingent consideration
Variable Interest Entity [Line Items]
Total Liabilities	11,464
Other current liabilities
Variable Interest Entity [Line Items]
Total Liabilities	20,021
Total long-term liabilities
Variable Interest Entity [Line Items]
Total Liabilities	15,481
Convertible subordinated notes to affiliates
Variable Interest Entity [Line Items]
Total Liabilities	6,542
Contingent consideration
Variable Interest Entity [Line Items]
Total Liabilities	7,472
Other long-term liabilities
Variable Interest Entity [Line Items]
Total Liabilities	$ 1,467

Property and Equipment - Schedu

Property and Equipment - Schedule of Property and Equipment (Details) - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2016	Dec. 31, 2015
Property, Plant and Equipment [Line Items]
Property and equipment, gross	$ 34,808	$ 32,967
Accumulated depreciation	(29,942)	(28,491)
Property and equipment—net	4,866	4,476
Information technology
Property, Plant and Equipment [Line Items]
Property and equipment, gross	$ 29,228	27,392
Information technology | Minimum
Property, Plant and Equipment [Line Items]
Estimated useful lives	2 years
Information technology | Maximum
Property, Plant and Equipment [Line Items]
Estimated useful lives	5 years
Leasehold improvements
Property, Plant and Equipment [Line Items]
Property and equipment, gross	$ 4,568	4,568
Leasehold improvements | Minimum
Property, Plant and Equipment [Line Items]
Estimated useful lives	2 years
Leasehold improvements | Maximum
Property, Plant and Equipment [Line Items]
Estimated useful lives	5 years
Furniture and fixtures
Property, Plant and Equipment [Line Items]
Property and equipment, gross	$ 1,012	$ 1,007
Furniture and fixtures | Minimum
Property, Plant and Equipment [Line Items]
Estimated useful lives	2 years
Furniture and fixtures | Maximum
Property, Plant and Equipment [Line Items]
Estimated useful lives	5 years

Property and Equipment - Narrat

Property and Equipment - Narrative (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2016	Sep. 30, 2015	Dec. 31, 2015
Property, Plant and Equipment [Line Items]
Depreciation	$ 0.5	$ 0.3	$ 1.4	$ 1.2
Information technology
Property, Plant and Equipment [Line Items]
Assets not yet placed into service	$ 0.8		$ 0.8		$ 0.5

Goodwill, Customer Relationsh45

Goodwill, Customer Relationships and Trademarks - Goodwill and Intangible Assets (Details) - USD ($) $ in Thousands	Sep. 30, 2016	Dec. 31, 2015
Goodwill and Intangible Assets Disclosure [Abstract]
Goodwill	$ 79,556	$ 18,379
Finite-Lived Intangible Assets [Line Items]
Total	49,979
Customer Relationships - Acquired
Finite-Lived Intangible Assets [Line Items]
Cost	63,571	14,883
Accumulated amortization	(22,022)	(4,503)
Total	41,549	10,380
Customer Relationships - Others
Finite-Lived Intangible Assets [Line Items]
Cost	4,320	4,320
Accumulated amortization	(2,349)	(1,271)
Total	1,971	3,049
Trademarks
Finite-Lived Intangible Assets [Line Items]
Cost	6,770	1,268
Accumulated amortization	(311)	(74)
Total	$ 6,459	$ 1,194

Goodwill, Customer Relationsh46

Goodwill, Customer Relationships and Trademarks - Roll Forward (Details) $ in Thousands	9 Months Ended
	Sep. 30, 2016USD ($)
Goodwill [Roll Forward]
Balance at beginning of period	$ 18,379
Additions	61,177
Balance at end of period	79,556
Finite-lived Intangible Assets [Roll Forward]
Balance at end of period	49,979
Customer Relationships - Acquired
Finite-lived Intangible Assets [Roll Forward]
Balance at beginning of period	10,380
Additions	48,688
Amortization expense	(17,519)
Balance at end of period	41,549
Customer Relationships - Others
Finite-lived Intangible Assets [Roll Forward]
Balance at beginning of period	3,049
Amortization expense	(1,078)
Balance at end of period	1,971
Trademarks
Finite-lived Intangible Assets [Roll Forward]
Balance at beginning of period	1,194
Additions	5,502
Amortization expense	(237)
Balance at end of period	6,459
Cost of Revenue | Customer Relationships - Acquired
Finite-lived Intangible Assets [Roll Forward]
Amortization expense	$ (9,400)

Goodwill, Customer Relationsh47

Goodwill, Customer Relationships and Trademarks - Future Amortization Expense (Details) $ in Thousands	Sep. 30, 2016USD ($)
Year ending December 31,
2,016	$ 10,117
2,017	12,913
2,018	10,337
2,019	5,892
2,020	2,895
More than 5 years	7,825
Total	$ 49,979

Debt - Components of Debt (Deta

Debt - Components of Debt (Details) - USD ($) $ in Thousands	3 Months Ended	9 Months Ended	12 Months Ended
	Sep. 30, 2016	Sep. 30, 2016	Dec. 31, 2015
Debt Instrument [Line Items]
Total current debt	$ 62,714	$ 62,714	$ 27,806
Total long-term debt	6,542	6,542	20,931
Total debt	69,256	69,256	48,737
Trade Credit Arrangements With Pacific Summit Energy LLC
Debt Instrument [Line Items]
Total current debt	13,445	13,445	0
Senior Credit Facility
Debt Instrument [Line Items]
Letters of credit issued	33,000	$ 33,000	$ 21,500
Weighted average interest rate on current portion of debt		4.38%	3.90%
Senior Credit Facility | Acquisition Line
Debt Instrument [Line Items]
Total long-term debt	0	$ 0	$ 14,592
Convertible Subordinated Notes
Debt Instrument [Line Items]
Total long-term debt	6,542	6,542	6,339
Paid in-kind interest	200	400
Convertible Subordinated Notes | Oasis Note
Debt Instrument [Line Items]
Unamortized discount	900	900	700
Senior Credit Facility | Working Capital Line
Debt Instrument [Line Items]
Total current debt	26,000	26,000	22,500
Senior Credit Facility | Acquisition Line
Debt Instrument [Line Items]
Total current debt	$ 23,269	$ 23,269	$ 5,306

Debt - Debt Components Narrativ

Debt - Debt Components Narrative (Details) - USD ($)	Sep. 30, 2016	Dec. 31, 2015
Debt Instrument [Line Items]
Deferred financing costs	$ 600,000	$ 700,000
Other Current Assets
Debt Instrument [Line Items]
Deferred financing costs	600,000	500,000
Other Noncurrent Assets
Debt Instrument [Line Items]
Deferred financing costs	$ 0	$ 200,000

Debt - Interest Expense (Detail

Debt - Interest Expense (Details) - USD ($) $ in Thousands	3 Months Ended				9 Months Ended
	Sep. 30, 2016		Sep. 30, 2015		Sep. 30, 2016		Sep. 30, 2015
Line of Credit Facility [Line Items]
Amortization of deferred financing costs	$ 231		$ 195		$ 465		$ 295
Interest Expense	1,270	[1]	800	[2]	2,855	[1]	1,415	[2]
Convertible Subordinated Notes
Line of Credit Facility [Line Items]
Interest incurred on convertible subordinated notes to affiliate	132		86		385		86
Amortization of discount	100				100
Working Capital Facility
Line of Credit Facility [Line Items]
Commitment fees	30		44		113		141
Letters of credit fees	165		124		457		223
Working Capital Facility | Senior Credit Facility
Line of Credit Facility [Line Items]
Interest incurred on Senior Credit Facility	$ 712		$ 351		$ 1,435		$ 670
[1]	Financial information has been recast to include results attributable to the acquisition of Major Energy Companies by an affiliate on April 15, 2016. See Notes 2 and 3 "Basis of Presentation" and "Acquisitions," respectively, for further discussion.
[2]	Financial information has been recast to include results attributable to the acquisition of Oasis Power Holdings LLC from an affiliate on May 12, 2015. See Notes 2 "Basis of Presentation" for further discussion.

Debt - Senior Credit Facility (

Debt - Senior Credit Facility (Details) - USD ($)	9 Months Ended
	Sep. 30, 2016	Sep. 29, 2016	Aug. 01, 2016	Jun. 01, 2016	May 31, 2016
Senior Secured Revolving Credit Facility
Line of Credit Facility [Line Items]
Past maturity, extension period	1 year
Adjusted tangible net worth threshold (greater than)	$ 18,000,000
Quarterly increases to the numerator	5.00%
Maximum leverage ratio	250.00%
Debt default, change in control, ownership percentage (less than)	40.00%
Debt default, material judgment (in excess of)	$ 5,000,000
Senior Secured Revolving Credit Facility | Maximum
Line of Credit Facility [Line Items]
Fixed charge coverage ratio	125.00%
Senior Secured Revolving Credit Facility | Minimum
Line of Credit Facility [Line Items]
Fixed charge coverage ratio	110.00%
Revolving Credit Facility | Working Capital Line
Line of Credit Facility [Line Items]
Line of credit facility, maximum borrowing capacity	$ 60,000,000	$ 82,500,000		$ 82,500,000	$ 60,000,000
Required minimum availability			$ 40,000,000
Reduction to interest rate if facility utilization is less than fifty percent	0.25%
Commitment fee percentage	0.375%
Nonutilization fee	0.50%
Adjusted tangible net worth, aggregate commitments percentage	20.00%
Revolving Credit Facility | Working Capital Line | Maximum
Line of Credit Facility [Line Items]
Line of credit, availability	$ 82,500,000
Borrowing base calculated on value of eligible accounts receivable, unbilled product sales, inventory and other working capital assets, percentage	90.00%
Revolving Credit Facility | Working Capital Line | Minimum
Line of Credit Facility [Line Items]
Line of credit, availability	$ 40,000,000
Borrowing base calculated on value of eligible accounts receivable, unbilled product sales, inventory and other working capital assets, percentage	80.00%
Consolidated net working capital through December 30, 2016	$ 5,000,000
Consolidated net working capital through December 30, 2016, percentage	10.00%
Consolidated net working capital from December 31, 2016 and thereafter	$ 5,000,000
Consolidated net working capital from December 31, 2016 and thereafter, percentage	15.00%
Revolving Credit Facility | Working Capital Line | Eurodollar
Line of Credit Facility [Line Items]
Basis spread on variable rate	3.00%
Revolving Credit Facility | Working Capital Line | Base Rate
Line of Credit Facility [Line Items]
Basis spread on variable rate	2.00%
Revolving Credit Facility | Working Capital Line | Federal Funds Rate
Line of Credit Facility [Line Items]
Basis spread on variable rate	0.50%
Revolving Credit Facility | Working Capital Line | Reference Eurodollar Rate
Line of Credit Facility [Line Items]
Basis spread on variable rate	1.00%
Revolving Credit Facility | Working Capital Line | Cost of Funds Rate
Line of Credit Facility [Line Items]
Basis spread on variable rate	2.50%
Revolving Credit Facility | Acquisition Line
Line of Credit Facility [Line Items]
Line of credit facility, maximum borrowing capacity	$ 25,000,000
Financing of cost of acquisitions, maximum percentage	75.00%
Annual payment percentage	25.00%
Nonutilization fee	0.50%
Adjusted tangible net worth, borrowings percentage	33.00%
Revolving Credit Facility | Acquisition Line | Eurodollar | Maximum
Line of Credit Facility [Line Items]
Basis spread on variable rate	3.75%
Revolving Credit Facility | Acquisition Line | Base Rate | Maximum
Line of Credit Facility [Line Items]
Basis spread on variable rate	2.75%
Revolving Credit Facility | Acquisition Line | Federal Funds Rate
Line of Credit Facility [Line Items]
Basis spread on variable rate	0.50%
Revolving Credit Facility | Acquisition Line | Reference Eurodollar Rate
Line of Credit Facility [Line Items]
Basis spread on variable rate	1.00%

Debt - Convertible Subordinated

Debt - Convertible Subordinated Notes to Affiliate (Details) - USD ($)	Jan. 31, 2017	Jan. 08, 2017	Jul. 31, 2015	Jul. 08, 2015	Sep. 30, 2016	Dec. 31, 2015	May 12, 2015	May 29, 2014	Apr. 22, 2014
Debt Instrument [Line Items]
Conversion price (in dollars per share)							$ 14
Convertible Debt | Censtar Convertible Debt
Debt Instrument [Line Items]
Interest rate				5.00%
Period in which conversion rights may not be exercised (in months)				18 months
Convertible Debt | Senior Secured Revolving Credit Facility
Debt Instrument [Line Items]
Required minimum availability			$ 5,000,000	$ 5,000,000
Convertible Debt | Oasis Note
Debt Instrument [Line Items]
Interest rate			5.00%
Conversion price (in dollars per share)							$ 14
Period in which conversion rights may not be exercised (in months)			18 months
Intrinsic value			$ 800,000
CenStar | Convertible Debt | Censtar Convertible Debt
Debt Instrument [Line Items]
Debt issued				$ 2,100,000
Oasis | Convertible Debt | Oasis Note
Debt Instrument [Line Items]
Debt issued			$ 5,000,000
Common Class B
Debt Instrument [Line Items]
Common stock par value per share (in dollars per share)			$ 0.01	$ 0.01	$ 0.01	$ 0.01		$ 0.01
Common Class B | Convertible Debt | Censtar Convertible Debt
Debt Instrument [Line Items]
Conversion price (in dollars per share)				$ 16.57
Common Class B | Convertible Debt | Oasis Note
Debt Instrument [Line Items]
Conversion price (in dollars per share)			14
Common Class A
Debt Instrument [Line Items]
Common stock par value per share (in dollars per share)					$ 0.01	$ 0.01			$ 0.01
Market price (in dollars per share)			$ 16.21
Scenario, Forecast | Common Class B
Debt Instrument [Line Items]
Number of shares from conversion (shares)	383,090	134,731
Scenario, Forecast | Common Class B | Censtar Convertible Debt
Debt Instrument [Line Items]
Number of shares from conversion (shares)		134,731
Scenario, Forecast | Common Class B | Oasis Note
Debt Instrument [Line Items]
Number of shares from conversion (shares)	383,090

Debt - Pacific Summit Energy LL

Debt - Pacific Summit Energy LLC (Details) $ in Thousands	9 Months Ended
	Sep. 30, 2016USD ($)trade_credit_arrangement	Dec. 31, 2015USD ($)
Debt Instrument [Line Items]
Amount outstanding	$ 69,256	$ 48,737
Major Energy Companies | Trade Credit Arrangements With Pacific Summit Energy LLC
Debt Instrument [Line Items]
Number of trade credit arrangements | trade_credit_arrangement	3
Amount outstanding	$ 13,400
Interest rate	3.90%
LIBOR | Major Energy Companies | Trade Credit Arrangements With Pacific Summit Energy LLC
Debt Instrument [Line Items]
Basis spread on variable rate	3.00%

Fair Value Measurements (Detail

Fair Value Measurements (Details) - USD ($)		Aug. 23, 2016	Apr. 15, 2016	Aug. 31, 2016	Sep. 30, 2016	Sep. 30, 2016		Sep. 30, 2015	[2]	Aug. 01, 2016	Mar. 31, 2016	Dec. 31, 2015
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Contingent consideration for acquisitions - current					$ 11,325,000	$ 11,325,000						$ 500,000
Contingent consideration for acquisitions - noncurrent					7,611,000	7,611,000						0
Earnout payments						1,343,000	[1]	$ 0
Increase in estimate of CenStar Earnout						843,000	[1]	$ 0
Fair Value, Measurements, Recurring
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative assets					1,854,000	1,854,000						605,000
Derivative liabilities					(15,229,000)	(15,229,000)						(11,238,000)
Contingent payment arrangement					18,935,000	18,935,000						500,000
Fair Value, Measurements, Recurring | Non-trading Commodity Contract
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative assets					915,000	915,000						200,000
Derivative liabilities					(14,896,000)	(14,896,000)						(10,985,000)
Fair Value, Measurements, Recurring | Trading Commodity Contract
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative assets					939,000	939,000						405,000
Derivative liabilities					(333,000)	(333,000)						(253,000)
Fair Value, Measurements, Recurring | Level 1
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative assets					0	0						0
Derivative liabilities					(506,000)	(506,000)						(3,324,000)
Contingent payment arrangement					0	0						0
Fair Value, Measurements, Recurring | Level 1 | Non-trading Commodity Contract
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative assets					0	0						0
Derivative liabilities					(448,000)	(448,000)						(3,324,000)
Fair Value, Measurements, Recurring | Level 1 | Trading Commodity Contract
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative assets					0	0						0
Derivative liabilities					(58,000)	(58,000)						0
Fair Value, Measurements, Recurring | Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative assets					1,854,000	1,854,000						605,000
Derivative liabilities					(14,723,000)	(14,723,000)						(7,914,000)
Contingent payment arrangement					0	0						0
Fair Value, Measurements, Recurring | Level 2 | Non-trading Commodity Contract
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative assets					915,000	915,000						200,000
Derivative liabilities					(14,448,000)	(14,448,000)						(7,661,000)
Fair Value, Measurements, Recurring | Level 2 | Trading Commodity Contract
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative assets					939,000	939,000						405,000
Derivative liabilities					(275,000)	(275,000)						(253,000)
Fair Value, Measurements, Recurring | Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative assets					0	0						0
Derivative liabilities					0	0						0
Contingent payment arrangement					18,935,000	18,935,000						500,000
Fair Value, Measurements, Recurring | Level 3 | Non-trading Commodity Contract
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative assets					0	0						0
Derivative liabilities					0	0						0
Fair Value, Measurements, Recurring | Level 3 | Trading Commodity Contract
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative assets					0	0						0
Derivative liabilities					0	$ 0						0
Provider Earnout
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Performance period (in years)						9 months
Earnout maximum					9,000,000	$ 9,000,000				$ 9,000,000
Earnout minimum					5,000,000	5,000,000
Provider Earnout | Fair Value, Measurements, Recurring
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Contingent payment arrangement					4,800,000	4,800,000
Major Earnout | Fair Value, Measurements, Recurring
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Contingent payment arrangement					13,300,000	$ 13,300,000
CenStar Earnout
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Contingent payment arrangement											$ 1,500,000	$ 500,000
Performance period (in years)						1 year
Earnout payments	[1]			$ (1,300,000)
Release from escrow				$ 600,000
CenStar Earnout | Fair Value, Measurements, Recurring
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Contingent payment arrangement					800,000	$ 800,000
General and Administrative Expense | CenStar Earnout
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Increase in estimate of CenStar Earnout	[1]				$ (200,000)	$ (200,000)
National Gas & Electric, LLC | Major Energy Companies
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Performance period (in years)			33 months
Earnout maximum			$ 20,000,000
Major Energy Companies | Common Class B
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Share earnout maximum (in shares)		40,718
Major Energy Companies | Common Class B | Maximum
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Share earnout maximum (in shares)		200,000
[1]	Financial information has been recast to include results attributable to the acquisition of the Major Energy Companies from an affiliate on August 23, 2016. See Notes 2 and 3 "Basis of Presentation" and "Acquisitions," respectively, for further discussion.
[2]	Financial information has been recast to include results attributable to the acquisition of Oasis Power Holdings LLC by an affiliate on May 12, 2015. See Notes 2 "Basis of Presentation" for further discussion.

Accounting for Derivative Ins55

Accounting for Derivative Instruments - Narrative (Details) - USD ($) $ in Millions	Sep. 30, 2016	Dec. 31, 2015
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Collateral fee	$ 1.2	$ 0.1

Accounting for Derivative Ins56

Accounting for Derivative Instruments - Volumetric Underlying Derivative Transactions (Details) MWh in Thousands, MMBTU in Thousands	9 Months Ended	12 Months Ended
	Sep. 30, 2016MWhMMBTU	Dec. 31, 2015MWhMMBTU
Non-trading | Natural Gas | Buy
Derivatives, Fair Value [Line Items]
Net notional volume	6,760	7,543
Non-trading | Natural Gas Basis | Buy
Derivatives, Fair Value [Line Items]
Net notional volume	0	455
Non-trading | Electricity | Buy
Derivatives, Fair Value [Line Items]
Net notional volume | MWh	3,278	1,187
Trading | Natural Gas | Buy
Derivatives, Fair Value [Line Items]
Net notional volume		8
Trading | Natural Gas | Sell
Derivatives, Fair Value [Line Items]
Net notional volume	2,366
Trading | Natural Gas Basis | Buy
Derivatives, Fair Value [Line Items]
Net notional volume	242
Trading | Natural Gas Basis | Sell
Derivatives, Fair Value [Line Items]
Net notional volume		455

Accounting for Derivative Ins57

Accounting for Derivative Instruments - Gains (Losses) on Derivative Instruments (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2016	Sep. 30, 2015
Derivative Instruments, Gain (Loss) [Line Items]
(Loss) gain on derivatives, net	$ (609)	$ 61	$ 2,887	$ (6,118)
Total current period settlements on derivatives	(8,869)	4,163	3,427	12,887
Non-trading
Derivative Instruments, Gain (Loss) [Line Items]
(Loss) gain on derivatives, net	(1,183)	132	2,519	(5,876)
Total current period settlements on derivatives	(8,889)	4,035	3,341	12,643
Non-trading | Censtar and Oasis Power Holdings
Derivative Instruments, Gain (Loss) [Line Items]
(Loss) gain on derivatives, net	500	2,000	600	2,200
Non-trading | Provider Companies and Major Energy Companies
Derivative Instruments, Gain (Loss) [Line Items]
(Loss) gain on derivatives, net	11,200		14,700
Trading
Derivative Instruments, Gain (Loss) [Line Items]
(Loss) gain on derivatives, net	574	(71)	368	(242)
Total current period settlements on derivatives	$ 20	$ 128	$ 86	$ 244

Accounting for Derivative Ins58

Accounting for Derivative Instruments - Offsetting Assets (Details) - USD ($) $ in Thousands	Sep. 30, 2016	Dec. 31, 2015
Commodity Contract
Offsetting Assets [Line Items]
Gross Assets	$ 3,272	$ 1,000
Gross Amounts Offset	(1,418)	(395)
Net Assets	1,854	605
Cash Collateral Offset	0	0
Net Amount Presented	1,854	605
Commodity Contract, Current
Offsetting Assets [Line Items]
Gross Assets	2,861	1,000
Gross Amounts Offset	(1,325)	(395)
Net Assets	1,536	605
Cash Collateral Offset	0	0
Net Amount Presented	1,536	605
Trading Commodity Contract, Current
Offsetting Assets [Line Items]
Gross Assets	952	411
Gross Amounts Offset	(13)	(6)
Net Assets	939	405
Cash Collateral Offset	0	0
Net Amount Presented	939	405
Not Designated as Hedging Instrument [Member] | Non-trading Commodity Contract, Current
Offsetting Assets [Line Items]
Gross Assets	1,909	589
Gross Amounts Offset	(1,312)	(389)
Net Assets	597	200
Cash Collateral Offset	0	0
Net Amount Presented	597	200
Not Designated as Hedging Instrument [Member] | Commodity Contract, Noncurrent
Offsetting Assets [Line Items]
Gross Assets	411	0
Gross Amounts Offset	(93)	0
Net Assets	318	0
Cash Collateral Offset	0	0
Net Amount Presented	318	0
Not Designated as Hedging Instrument [Member] | Non-trading Commodity Contract, Noncurrent
Offsetting Assets [Line Items]
Gross Assets	411	0
Gross Amounts Offset	(93)	0
Net Assets	318	0
Cash Collateral Offset	0	0
Net Amount Presented	$ 318	$ 0

Accounting for Derivative Ins59

Accounting for Derivative Instruments - Offsetting Liabilities (Details) - USD ($) $ in Thousands	Sep. 30, 2016	Dec. 31, 2015
Commodity Contract
Offsetting Liabilities [Line Items]
Gross Liabilities	$ (29,843)	$ (14,888)
Gross Amounts Offset	13,414	3,550
Net Liabilities	(16,429)	(11,338)
Cash Collateral Offset	1,200	100
Net Amount Presented	(15,229)	(11,238)
Commodity Contract, Current
Offsetting Liabilities [Line Items]
Gross Liabilities	(25,311)	(13,938)
Gross Amounts Offset	10,349	3,218
Net Liabilities	(14,962)	(10,720)
Cash Collateral Offset	1,200	100
Net Amount Presented	(13,762)	(10,620)
Trading Commodity Contract, Current
Offsetting Liabilities [Line Items]
Gross Liabilities	(356)	(320)
Gross Amounts Offset	23	67
Net Liabilities	(333)	(253)
Cash Collateral Offset	0	0
Net Amount Presented	(333)	(253)
Not Designated as Hedging Instrument [Member] | Non-trading Commodity Contract, Current
Offsetting Liabilities [Line Items]
Gross Liabilities	(24,955)	(13,618)
Gross Amounts Offset	10,326	3,151
Net Liabilities	(14,629)	(10,467)
Cash Collateral Offset	1,200	100
Net Amount Presented	(13,429)	(10,367)
Not Designated as Hedging Instrument [Member] | Commodity Contract, Noncurrent
Offsetting Liabilities [Line Items]
Gross Liabilities	(4,532)	(950)
Gross Amounts Offset	3,065	332
Net Liabilities	(1,467)	(618)
Cash Collateral Offset	0	0
Net Amount Presented	(1,467)	(618)
Not Designated as Hedging Instrument [Member] | Non-trading Commodity Contract, Noncurrent
Offsetting Liabilities [Line Items]
Gross Liabilities	(4,532)	(950)
Gross Amounts Offset	3,065	332
Net Liabilities	(1,467)	(618)
Cash Collateral Offset	0	0
Net Amount Presented	$ (1,467)	$ (618)

Taxes (Details)

Taxes (Details) - USD ($) $ in Thousands	Jun. 08, 2016	Apr. 01, 2016	Feb. 03, 2016	Sep. 30, 2016	Sep. 30, 2015	Dec. 31, 2015
Related Party Transaction [Line Items]
Net current deferred tax liability						$ (900)
Non-current deferred tax assets				$ 56,101		23,380
Non-current deferred tax liability				0		853
Number of shares of common stock exchanged	500,000	1,725,000	1,000,000
Long-term payable pursuant to the TRA				$ 50,625		20,713
Income tax rate				14.20%	6.50%
Affiliated Entity | Retailco
Related Party Transaction [Line Items]
Long-term deferred tax asset	$ 2,600	$ 3,900	$ 3,900
Long-term deferred tax liability	$ 6,900	$ 10,300	$ 10,300
Number of shares of common stock exchanged	500,000	1,725,000	1,000,000
Net deferred tax asset	$ 5,300	$ 7,600	$ 8,000
NuDevco Retail Holdings and NuDevco Retail
Related Party Transaction [Line Items]
Net deferred tax asset				$ 15,600
Payable pursuant to the TRA				50,600
Long-term deferred tax asset related to the TRA				$ 20,000
Accounting Standards Update 2015-17 | New Accounting Pronouncement, Early Adoption, Effect
Related Party Transaction [Line Items]
Non-current deferred tax assets						23,400
Non-current deferred tax liability						$ 900

Commitments and Contingencies (

Commitments and Contingencies (Details) - USD ($) $ in Millions	Aug. 01, 2016	Jan. 19, 2016	Aug. 31, 2016	Feb. 29, 2016	May 31, 2015	Sep. 30, 2016	Dec. 31, 2015
Indirect Tax Audits
Loss Contingencies [Line Items]
Loss during the period						$ 1.6
Increase in liabilities from accrual of additional loss						1.9
Provider Companies | Pending Litigation | Halifax-American Energy Company, LLC et al v. Provider Power, LLC, Electricity N.H., LLC, Electricity Maine, LLC, Emile Clavet and Kevin Dean
Loss Contingencies [Line Items]
Litigation settlement amount		$ (0.6)
Attorney fees		$ 0.3
Appeal bond	$ 1
Contingent liabilities						$ 1
Major Energy Companies | Settled Litigation | Misleading Marketing Practices- Illinois Commerce Commission
Loss Contingencies [Line Items]
Litigation settlement amount					$ (0.3)
Major Energy Companies | Settled Litigation | Misleading Marketing Practices- Maryland Public Service Commission
Loss Contingencies [Line Items]
Litigation settlement amount				$ (0.3)			$ (0.3)
Major Energy Companies | Settled Litigation | Misleading Marketing Practices- Pennsylvania Public Utility Commission/Bureau of Investigation and Enforcement
Loss Contingencies [Line Items]
Litigation settlement amount			$ (4.1)

Transactions with Affiliates (D

Transactions with Affiliates (Details) - USD ($)

Aug. 23, 2016

Aug. 01, 2016

Jan. 01, 2016

May 16, 2016

Sep. 30, 2016

Sep. 30, 2015

May 16, 2016

Sep. 30, 2016

Sep. 30, 2015

Dec. 31, 2015

Jul. 31, 2015

Jul. 08, 2015

Related Party Transaction [Line Items]

Accounts payable—affiliates

$ 2,598,000

$ 2,598,000

$ 1,962,000

Prepaid assets - affiliates (less than)

1,000

1,000

210,000

Net asset optimization revenues

[2]

108,000

[1]

$ (545,000)

[3]

(42,000)

[1]

$ 1,317,000

[3]

Retail cost of revenues (less than)

[4]

122,830,000

[1]

60,967,000

[3]

248,593,000

[1]

176,000,000

[3]

General and administrative expense - affiliates

[5]

18,009,000

[1]

15,493,000

[3]

55,188,000

[1]

43,909,000

[3]

Proceeds from disgorgement of stockholders short-swing profits

300,000

[6]

$ 941,000

[6]

0

[7]

Tax receivable agreement, net cash savings (as a percent)

15.00%

Tax Receivable Agreement | NuDevco Retail Holdings and NuDevco Retail

Related Party Transaction [Line Items]

Initial TRA payment

1,400,000

$ 1,400,000

Convertible Debt | CenStar | Censtar Convertible Debt

Related Party Transaction [Line Items]

Notes, issued amount

$ 2,100,000

Convertible Debt | Oasis | Oasis Power Holdings Convertible Debt

Related Party Transaction [Line Items]

Notes, issued amount

$ 5,000,000

Affiliated Entity

Related Party Transaction [Line Items]

Accounts receivable - affiliates

2,800,000

2,800,000

1,800,000

Accounts payable—affiliates

2,600,000

2,600,000

2,000,000

Prepaid assets - affiliates (less than)

100,000

100,000

$ 200,000

Affiliated Entity | Retailco

Related Party Transaction [Line Items]

Service contract term

1 year

Service contract, renewal term

1 year

Affiliated Entity | Purchased Natural Gas From Affiliate

Related Party Transaction [Line Items]

Cost of revenues

0

3,400,000

1,600,000

9,600,000

Affiliated Entity | Purchased Natural Gas Sold To Affiliate

Related Party Transaction [Line Items]

Net asset optimization revenues

0

300,000

200,000

900,000

Affiliated Entity | Marlin Transportation Agreement

Related Party Transaction [Line Items]

Retail cost of revenues (less than)

$ 100,000

$ 100,000

Affiliated Entity | Allocated Overhead Costs

Related Party Transaction [Line Items]

General and administrative expense - affiliates

3,200,000

$ 600,000

12,800,000

2,300,000

Affiliated Entity | Allocated Overhead Costs | Retailco

Related Party Transaction [Line Items]

General and administrative expense - affiliates

2,900,000

11,000,000

Affiliated Entity | Property and Equipment Capitalized | Retailco

Related Party Transaction [Line Items]

Amount capitalized for application, development and implementation of various systems

$ 200,000

1,300,000

NuDevco Retail and Retailco

Related Party Transaction [Line Items]

Payments of distributions to affiliates

$ 19,900,000

$ 11,700,000

Tax receivable agreement, net cash savings (as a percent)

85.00%

NuDevco Retail and Retailco | Payment of Income Taxes Incurred by the Company

Related Party Transaction [Line Items]

Payments of distributions to affiliates

$ 6,300,000

Retailco

Related Party Transaction [Line Items]

Payments of distributions to affiliates

10,100,000

NG&E

Related Party Transaction [Line Items]

Payments of distributions to affiliates

$ 9,800,000

NuDevco Retail Holdings and NuDevco Retail

Related Party Transaction [Line Items]

Tax receivable agreement, deferral period

5 years

Tax receivable agreement, coverage percentage

130.00%

Tax receivable agreement, target dividend (in dollars per share)

$ 0.3625

Common Class B

Related Party Transaction [Line Items]

Share price (in dollars per share)

$ 20

$ 20

Common Class B | Subsidiary of Common Parent | National Gas & Electric, LLC

Related Party Transaction [Line Items]

Number of shares issued for acquisition (shares)

2,000,000

Common Class B | Subsidiary of Common Parent | Retailco

Related Party Transaction [Line Items]

Number of shares issued for acquisition (shares)

699,742

Value of shares issued for acquisition

$ 14,000,000

[1]

Financial information has been recast to include results attributable to the acquisition of Major Energy Companies by an affiliate on April 15, 2016. See Notes 2 and 3 "Basis of Presentation" and "Acquisitions," respectively, for further discussion.

[2]

Net asset optimization (expenses) revenues includes asset optimization revenues—affiliates of $0 and $263 for the three months ended September 30, 2016 and 2015, respectively, and asset optimization revenues—affiliates cost of revenues of $0 and $3,382 for the three months ended September 30, 2016 and 2015, respectively and asset optimization revenues—affiliates of $154 and $928 for the nine months ended September 30, 2016 and 2015, respectively, and asset optimization revenue—affiliates cost of revenues of $1,633 and $9,589 for the nine months ended September 30, 2016 and 2015, respectively.

[3]

Financial information has been recast to include results attributable to the acquisition of Oasis Power Holdings LLC from an affiliate on May 12, 2015. See Notes 2 "Basis of Presentation" for further discussion.

[4]

Retail cost of revenues includes retail cost of revenues—affiliates of $0 for the three months ended September 30, 2016 and 2015, respectively, and less than $100 for the nine months ended September 30, 2016 and 2015 respectively.

[5]

General and administrative includes general and administrative expense—affiliates of $3,078 and $0 for the three months ended September 30, 2016, and 2015, respectively, and $11,521 and $100 for the nine months ended September 30, 2016 and 2015, respectively.

[6]

Financial information has been recast to include results attributable to the acquisition of the Major Energy Companies from an affiliate on August 23, 2016. See Notes 2 and 3 "Basis of Presentation" and "Acquisitions," respectively, for further discussion.

[7]

Financial information has been recast to include results attributable to the acquisition of Oasis Power Holdings LLC by an affiliate on May 12, 2015. See Notes 2 "Basis of Presentation" for further discussion.

Segment Reporting - Narrative (

Segment Reporting - Narrative (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2016	Sep. 30, 2015
Segment Reporting [Abstract]
Asset optimization revenue	$ 26	$ 27.7	$ 89.1	$ 120.7
Asset optimization cost of revenues	$ 25.9	$ 28.2	$ 89.1	$ 119.4

Segment Reporting - Reconciliat

Segment Reporting - Reconciliation (Details) - USD ($) $ in Thousands		3 Months Ended				9 Months Ended
		Sep. 30, 2016		Sep. 30, 2015		Sep. 30, 2016		Sep. 30, 2015
Segment Reporting Information [Line Items]
Income before income tax expense		$ 7,930	[1]	$ 6,455	[2]	$ 48,388	[1]	$ 24,442	[2]
Interest and other income		(240)	[1]	(5)	[2]	(340)	[1]	(326)	[2]
Interest expense		1,270	[1]	800	[2]	2,855	[1]	1,415	[2]
Operating Income		8,960	[1]	7,250	[2]	50,903	[1]	25,531	[2]
Depreciation and amortization		8,295	[1]	7,557	[2]	23,337	[1],[3]	17,873	[2],[4]
General and administrative	[5]	18,009	[1]	15,493	[2]	55,188	[1]	43,909	[2]
Less:
Net asset optimization (expenses) revenues	[6]	108	[1]	(545)	[2]	(42)	[1]	1,317	[2]
Net, Gain (losses) on non-trading derivative instruments		(609)		61		2,887		(6,118)
Net, Cash settlements on non-trading derivative instruments						18,693	[3]	15,120	[4]
Retail Gross Margin		45,228		26,678		123,610		79,229
Non-trading
Less:
Net, Gain (losses) on non-trading derivative instruments		(1,183)		132		2,519		(5,876)
Net, Cash settlements on non-trading derivative instruments		$ (8,889)		$ 4,035		$ 3,341		$ 12,643
[1]	Financial information has been recast to include results attributable to the acquisition of Major Energy Companies by an affiliate on April 15, 2016. See Notes 2 and 3 "Basis of Presentation" and "Acquisitions," respectively, for further discussion.
[2]	Financial information has been recast to include results attributable to the acquisition of Oasis Power Holdings LLC from an affiliate on May 12, 2015. See Notes 2 "Basis of Presentation" for further discussion.
[3]	Financial information has been recast to include results attributable to the acquisition of the Major Energy Companies from an affiliate on August 23, 2016. See Notes 2 and 3 "Basis of Presentation" and "Acquisitions," respectively, for further discussion.
[4]	Financial information has been recast to include results attributable to the acquisition of Oasis Power Holdings LLC by an affiliate on May 12, 2015. See Notes 2 "Basis of Presentation" for further discussion.
[5]	General and administrative includes general and administrative expense—affiliates of $3,078 and $0 for the three months ended September 30, 2016, and 2015, respectively, and $11,521 and $100 for the nine months ended September 30, 2016 and 2015, respectively.
[6]	Net asset optimization (expenses) revenues includes asset optimization revenues—affiliates of $0 and $263 for the three months ended September 30, 2016 and 2015, respectively, and asset optimization revenues—affiliates cost of revenues of $0 and $3,382 for the three months ended September 30, 2016 and 2015, respectively and asset optimization revenues—affiliates of $154 and $928 for the nine months ended September 30, 2016 and 2015, respectively, and asset optimization revenue—affiliates cost of revenues of $1,633 and $9,589 for the nine months ended September 30, 2016 and 2015, respectively.

Segment Reporting - Financial D

Segment Reporting - Financial Data (Details) - USD ($) $ in Thousands		3 Months Ended				9 Months Ended
		Sep. 30, 2016		Sep. 30, 2015		Sep. 30, 2016		Sep. 30, 2015		Dec. 31, 2015
Segment Reporting Information [Line Items]
Total Revenues		$ 158,094	[1]	$ 91,267	[2]	$ 378,021	[1]	$ 263,313	[2]
Retail cost of revenues	[3]	122,830	[1]	60,967	[2]	248,593	[1]	176,000	[2]
Less:
Net asset optimization (expenses) revenues	[4]	108	[1]	(545)	[2]	(42)	[1]	1,317	[2]
(Losses) gains on non-trading derivatives		(609)		61		2,887		(6,118)
Current period settlements on non-trading derivatives		(8,869)		4,163		3,427		12,887
Retail Gross Margin		45,228		26,678		123,610		79,229
Total Assets		337,731				337,731				$ 162,234
Goodwill		79,556				79,556				18,379
Non-trading
Less:
(Losses) gains on non-trading derivatives		(1,183)		132		2,519		(5,876)
Current period settlements on non-trading derivatives		(8,889)		4,035		3,341		12,643
Operating Segments | Retail Electricity
Segment Reporting Information [Line Items]
Total Revenues		144,243		76,913		293,571		170,060
Retail cost of revenues		113,600		50,787		209,617		122,864
Less:
Net asset optimization (expenses) revenues		0		0		0		0
Retail Gross Margin		39,189		18,925		82,226		43,670
Total Assets		474,575				474,575				150,245
Goodwill		77,271				77,271				16,476
Operating Segments | Retail Electricity | Non-trading
Less:
(Losses) gains on non-trading derivatives		68		3,891		997		(2,201)
Current period settlements on non-trading derivatives		(8,614)		3,310		731		5,727
Operating Segments | Retail Natural Gas
Segment Reporting Information [Line Items]
Total Revenues		13,851		14,354		84,450		93,253
Retail cost of revenues		9,230		10,180		38,976		53,136
Less:
Net asset optimization (expenses) revenues		108		(545)		(42)		1,317
Retail Gross Margin		6,039		7,753		41,384		35,559
Total Assets		185,145				185,145				113,583
Goodwill		2,285				2,285				1,903
Operating Segments | Retail Natural Gas | Non-trading
Less:
(Losses) gains on non-trading derivatives		(1,251)		(3,759)		1,522		(3,675)
Current period settlements on non-trading derivatives		(275)		725		2,610		6,916
Corporate and Other
Segment Reporting Information [Line Items]
Total Revenues		0		0		0		0
Retail cost of revenues		0		0		0		0
Less:
Net asset optimization (expenses) revenues		0		0		0		0
Retail Gross Margin		0		0		0		0
Total Assets		170,074				170,074				88,823
Goodwill		0				0				0
Corporate and Other | Non-trading
Less:
(Losses) gains on non-trading derivatives		0		0		0		0
Current period settlements on non-trading derivatives		0		0		0		0
Eliminations
Segment Reporting Information [Line Items]
Total Revenues		0		0		0		0
Retail cost of revenues		0		0		0		0
Less:
Net asset optimization (expenses) revenues		0		0		0		0
Retail Gross Margin		0		0		0		0
Total Assets		(492,063)				(492,063)				(190,417)
Goodwill		0				0				$ 0
Eliminations | Non-trading
Less:
(Losses) gains on non-trading derivatives		0		0		0		0
Current period settlements on non-trading derivatives		$ 0		$ 0		$ 0		$ 0
[1]	Financial information has been recast to include results attributable to the acquisition of Major Energy Companies by an affiliate on April 15, 2016. See Notes 2 and 3 "Basis of Presentation" and "Acquisitions," respectively, for further discussion.
[2]	Financial information has been recast to include results attributable to the acquisition of Oasis Power Holdings LLC from an affiliate on May 12, 2015. See Notes 2 "Basis of Presentation" for further discussion.
[3]	Retail cost of revenues includes retail cost of revenues—affiliates of $0 for the three months ended September 30, 2016 and 2015, respectively, and less than $100 for the nine months ended September 30, 2016 and 2015 respectively.
[4]	Net asset optimization (expenses) revenues includes asset optimization revenues—affiliates of $0 and $263 for the three months ended September 30, 2016 and 2015, respectively, and asset optimization revenues—affiliates cost of revenues of $0 and $3,382 for the three months ended September 30, 2016 and 2015, respectively and asset optimization revenues—affiliates of $154 and $928 for the nine months ended September 30, 2016 and 2015, respectively, and asset optimization revenue—affiliates cost of revenues of $1,633 and $9,589 for the nine months ended September 30, 2016 and 2015, respectively.

Subsequent Events (Details)

Subsequent Events (Details) - USD ($) $ / shares in Units, $ in Millions	Jan. 31, 2017	Jan. 08, 2017	Oct. 27, 2016	Sep. 30, 2016	Nov. 05, 2016
Subsequent Event | Common Class A
Subsequent Event [Line Items]
Dividends declared (n dollars per share)			$ 0.3625
Scenario, Forecast | Common Class B
Subsequent Event [Line Items]
Number of shares from conversion (shares)	383,090	134,731
Tax Receivable Agreement | NuDevco Retail Holdings and NuDevco Retail
Subsequent Event [Line Items]
Accounts payable—affiliates				$ 1.4
Tax receivable agreement, deferral period				18 months
Tax Receivable Agreement | NuDevco Retail Holdings and NuDevco Retail | Subsequent Event
Subsequent Event [Line Items]
Accounts payable—affiliates					$ 1.4