Risk Concentrations (Details) - Customer Concentration Risk	3 Months Ended
Mar. 31, 2020	Mar. 31, 2019
Revenue \| EOG Resources
Customer Concentrations
Concentration risk (as a percent)	18.00%	16.00%
Revenue \| Concho Resources, Inc.
Customer Concentrations
Concentration risk (as a percent)	17.00%	12.00%
Revenue \| Sable Resources Land, LLC
Customer Concentrations
Concentration risk (as a percent)		12.00%
Accounts Receivable
Customer Concentrations
Concentration risk (as a percent)	28.00%	49.00%

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
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-Section 50
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Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 825
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-URI http://asc.fasb.org/extlink&oid=118260190&loc=d3e13531-108611

Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 825
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Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 275
-SubTopic 10
-Section 50
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-URI http://asc.fasb.org/extlink&oid=99393423&loc=d3e6404-108592

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