CONCENTRATION OF RISK Customer Constituting 10% or more of Total Revenue (Details)	12 Months Ended
	Dec. 31, 2016 Rate	Dec. 31, 2015 Rate	Dec. 31, 2014 Rate
Suncor Energy Marketing, Inc.
Concentration Risk [Line Items]
Percentage of Revenue	22.30%	14.30%	19.70%
DCP Midstream, LP
Concentration Risk [Line Items]
Percentage of Revenue	20.20%	13.20%	15.10%
Aka Energy Group. LLC [Member]
Concentration Risk [Line Items]
Percentage of Revenue	13.40%	0.00%	0.00%
Concord Energy
Concentration Risk [Line Items]
Percentage of Revenue	13.40%	23.20%	18.30%
Bridger Energy, LLC [Member]
Concentration Risk [Line Items]
Percentage of Revenue	11.50%	0.00%	0.00%
Shell Trading Company
Concentration Risk [Line Items]
Percentage of Revenue	0.00%	13.80%	0.00%
Teppco Crude Oil
Concentration Risk [Line Items]
Percentage of Revenue	0.00%	0.00%	12.90%