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cm:Member: us-gaap:DrillingRightsMember
Standard label: Drilling Rights [Member]
Name: us-gaap:DrillingRightsMember
Documentation: Legal right to explore specific locations for oil or other fossil fuels.
Object type: cm:Member
Data type: [Member] (nonnum:domainItemType)
Period type: For Period (duration)
Balance type: (no balance type)
Abstract: true
Workiva Wdesk Taxonomy Analyzer: us-gaap:DrillingRightsMember

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Labels
Label Role Language
Drilling Rights [Member] http://www.xbrl.org/2003/role/label en-US

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References
Reference Role Topic