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Inventory- Schedule of Inventory (Details) - USD ($) $ in Thousands | Sep. 30, 2019 | Dec. 31, 2018
--- | --- | ---
Inventory |  |
Crude oil inventory | $ 14,823 | $ 14,933
Equipment and materials | 21,935 | 18,195
Total inventory | 36,758 | 33,128
Long-term inventory |  |
Linefill in third party pipelines | 14,395 | 12,260
Total long-term inventory | 14,395 | 12,260
Total | $ 51,153 | $ 45,388

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- Definition Carrying amount as of the balance sheet date of petroleum or crude oil. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.6(a)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
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