CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	1 Months Ended	3 Months Ended		12 Months Ended
	Jan. 31, 2018	Mar. 31, 2019	Mar. 31, 2018	Dec. 31, 2018
Cash flows from operating activities:
Net income (loss)		$ 2,745	$ (41,831)
Adjustments to reconcile net income (loss) to net cash flows provided by (used in) operating activities:
Depreciation and amortization expense		12,159	11,632
Deferred income taxes		59	(6,549)
Stock based compensation		1,172	1,131
Amortization of deferred financing costs		268	295
Bad debt expense		3,849	2,423
Loss on derivatives, net		19,541	36,542
Current period cash settlements on derivatives, net		(7,106)	16,442
Other		(137)	(248)
Changes in assets and liabilities:
Decrease in accounts receivable		16,129	9,737
(Increase) decrease in accounts receivable—affiliates		(73)	354
Decrease in inventory		3,643	4,070
Increase in customer acquisition costs		(5,789)	(4,274)
Increase in prepaid and other current assets		(5,692)	(22,719)
Increase in other assets		(102)	(58)
Decrease in accounts payable and accrued liabilities		(11,322)	(9,091)
Decrease in accounts payable—affiliates		(18)	(572)
Increase (decrease) in other current liabilities		390	(6,653)
Increase (decrease) in other non-current liabilities		333	(171)
Net cash provided by (used in) operating activities		30,049	(9,540)
Cash flows from investing activities:
Purchases of property and equipment		(254)	(754)
Acquisition of Starion customers		(5,869)	0
Acquisition of HIKO		0	(15,041)
Net cash used in investing activities		(6,123)	(15,795)
Cash flows from financing activities:
Proceeds from issuance of Series A Preferred Stock, net of issuance costs paid	$ 48,900	0	48,490
Borrowings on notes payable		64,500	83,800
Payments on notes payable		(93,500)	(102,550)
Payment of the Major Energy Companies Earnout		0	(1,607)
Payments on the Verde promissory note		(1,036)	(3,261)
Proceeds from disgorgement of stockholders short-swing profits		46	244
Payment of dividends to Class A common stockholders		(2,564)	(2,381)
Payment of distributions to non-controlling unitholders		(3,770)	(4,822)
Payment of Dividends to Preferred Stock		(2,027)	(932)
Payment to affiliates for acquisition of customer book		(10)	0
Net cash (used in) provided by financing activities		(38,361)	16,981
Decrease in Cash and cash equivalents		(14,435)	(8,354)
Cash and cash equivalents and Restricted cash—beginning of period	$ 29,419	49,638	29,419	$ 29,419
Cash and cash equivalents and Restricted cash—end of period		35,203	21,065	$ 49,638
Non-cash items:
Property and equipment purchase accrual		2	180
Cash paid (received) during the period for:
Interest		2,099	1,854
Taxes		$ (3,147)	$ 1,268