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.