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Inventory (Detail) - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020	Nov. 19, 2020
Inventory
Equipment and materials	$ 12,175	$ 12,798
Crude oil inventory	16,781	8,826
Total inventory	28,956	21,624	$ 21,969
Long-term inventory
Linefill in third-party pipelines	17,510	14,522
Long-term inventory	17,510	14,522	$ 12,234
Total	$ 46,466	$ 36,146

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Carrying amount as of the balance sheet date of petroleum or crude oil.

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Amount after valuation and LIFO reserves of inventory expected to be sold, or consumed within one year or operating cycle, if longer.

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Inventories not expected to be converted to cash, sold or exchanged within the normal operating cycle.

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