Revenue (Tables)

12 Months Ended

Dec. 31, 2019

Revenue

Summary of disaggregation of revenue by reportable segments as well as the all other category

	For the Years ended December 31,
	2019		2018		2017
Permian Basin
Services income	$	193,852	$	107,997	$	32,578
Construction fee income		2,705		-		-
Total Permian Basin revenues		196,557		107,997		32,578
Bakken Basin
Services income	$	20,621	$	25,813	$	22,351
Total Bakken Basin revenues		20,621		25,813		22,351
Government
Services income	$	25,071	$	25,536	$	16,770
Total Government revenues		25,071		25,536		16,770
All Other
Services income	$	3,273	$	4,310	$	1,799
Construction fee income		15,748		23,209		1,924
Total All Other revenues		19,021		27,519		3,723
Total revenues	$	261,270	$	186,865	$	75,422

Summary of contract liabilities

	Years Ended December 31,
	2019		2018		2017
Balances at Beginning of Year	$	37,376	$	57,747	$	73,035
Additions to deferred revenue		8,652		4,092		1,839
Revenue recognized		(19,829)		(24,463)		(17,127)
Balances at End of Year	$	26,199	$	37,376	$	57,747

Summary of revenue expected to be recognized from contracts where the price and quantity of the product or service are fixed

		For the Years ended December 31,
	2020		2021		2022		Thereafter		Total
Revenue expected to be recognized as of December 31, 2019	$	32,335	$	23,413	$	2,999	$	-	$	58,747