Concentration of Risk Customer Constituting 10% or more of Total Revenue (Details)	12 Months Ended
Dec. 31, 2019 Rate	Dec. 31, 2018 Rate	Dec. 31, 2017 Rate
Occidental Marketing, Inc.
Concentration Risk [Line Items]
Percentage of Revenue	20.00%	0.00%	0.00%
DCP Midstream, LP
Concentration Risk [Line Items]
Percentage of Revenue	17.00%	12.50%	19.60%
Mercuria Energy Trading, Inc. [Member]
Concentration Risk [Line Items]
Percentage of Revenue	16.00%	0.00%	0.00%
United Energy Trading [Member]
Concentration Risk [Line Items]
Percentage of Revenue	11.00%	0.00%	0.00%
Suncor Energy Marketing, Inc.
Concentration Risk [Line Items]
Percentage of Revenue	0.00%	0.00%	16.40%

For an entity that discloses a concentration risk in relation to quantitative amount, which serves as the "benchmark" (or denominator) in the equation, this concept represents the concentration percentage derived from the division.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 275
-SubTopic 10
-Section 50
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Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
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Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
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Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
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