Crude Oil and Natural Gas Properties and Equipment (Tables)	12 Months Ended
Dec. 31, 2021
Crude Oil and Natural Gas Properties and Equipment [Abstract]
Crude Oil and Natural Gas Properties and Equipment	As of December 31, 2021 As of December 31, 2020 (in thousands)Crude oil and natural gas properties and equipment - successful efforts method: Wells, platforms and other production facilities $ 488,756 $ 441,879Work-in-progress 13,515 169Undeveloped acreage 23,735 21,476Equipment and other 23,478 9,276 549,484 472,800Accumulated depreciation, depletion, amortization and impairment (455,160) (435,764)Net crude oil and natural gas properties, equipment and other $ 94,324 $ 37,036

Tabular disclosure of physical assets used in the normal conduct of business and not intended for resale. Includes, but is not limited to, balances by class of assets, depreciation and depletion expense and method used, including composite depreciation, and accumulated deprecation.

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(13))
-URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 360
-SubTopic 10
-Section 50
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=6391035&loc=d3e2868-110229

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