REVENUE (Schedule of Revenue Disaggregated by Product and Service) (Details) - USD ($) $ in Thousands	3 Months Ended	5 Months Ended	7 Months Ended
	Dec. 31, 2018	May 31, 2018	Dec. 31, 2018
Disaggregated revenues			$ 138,600
Revenue excluding royalty	$ 52,900		143,600
Aggregate Products [Member]
Disaggregated revenues			137,169
Revenue excluding royalty			142,200
Oil Product [Member]
Disaggregated revenues			41,411
Natural Gas Product [Member]
Disaggregated revenues			63,460
Natural Gas Liquids Product [Member]
Disaggregated revenues			32,298
Revenue excluding royalty			37,300
Wet Gas Products [Member]
Disaggregated revenues			13,400
Wet Gas Natural Gas [Member]
Disaggregated revenues			4,400
Wet Gas Natural Gas Liquids [Member]
Disaggregated revenues			9,000
Transportation and Marketing Services [Member]
Disaggregated revenues			1,431
Royalty [Member]
Disaggregated revenues			$ 5,000
Predecessor
Disaggregated revenues		$ 111,031
Predecessor | Aggregate Products [Member]
Disaggregated revenues		110,307
Predecessor | Oil Product [Member]
Disaggregated revenues		42,460
Predecessor | Natural Gas Product [Member]
Disaggregated revenues		40,951
Predecessor | Natural Gas Liquids Product [Member]
Disaggregated revenues		26,896
Predecessor | Wet Gas Products [Member]
Disaggregated revenues		8,400
Predecessor | Wet Gas Natural Gas [Member]
Disaggregated revenues		3,200
Predecessor | Wet Gas Natural Gas Liquids [Member]
Disaggregated revenues		5,200
Predecessor | Transportation and Marketing Services [Member]
Disaggregated revenues		$ 724