DEFERRED REVENUE (Tables)

6 Months Ended

Jun. 30, 2018

Revenue From Contract With Customer [Abstract]

Rollforward of deferred revenue

A rollforward of current deferred revenue follows.

	Utica Shale		Williston Basin		Piceance/DJ Basins		Barnett Shale		Marcellus Shale		Total current
	(In thousands)
Current deferred revenue,     December 31, 2017, as reported	$	—	$	—	$	4,000	$	—	$	—	$	4,000
Net impact of Topic 606 day 1     adoption		18		1,017		3,396		1,619		38		6,088
Current deferred revenue,     January 1, 2018		18		1,017		7,396		1,619		38		10,088
Additions		9		1,088		10,996		814		19		12,926
Less revenue recognized		9		643		10,762		803		19		12,236
Current deferred revenue,     June 30, 2018	$	18	$	1,462	$	7,630	$	1,630	$	38	$	10,778

A rollforward of noncurrent deferred revenue follows.

	Utica Shale		Williston Basin		Piceance/DJ Basins		Barnett Shale		Marcellus Shale		Total noncurrent
	(In thousands)
Noncurrent deferred revenue,     December 31, 2017, as reported	$	—	$	—	$	12,707	$	—	$	—	$	12,707
Net impact of Topic 606 day 1     adoption		39		4,215		10,017		8,217		333		22,821
Noncurrent deferred revenue,     January 1, 2018		39		4,215		22,724		8,217		333		35,528
Additions		—		1,622		5,200		1,583		—		8,405
Less reclassification to current     deferred revenue		9		1,017		3,955		814		19		5,814
Noncurrent deferred revenue,     June 30, 2018	$	30	$	4,820	$	23,969	$	8,986	$	314	$	38,119