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Property and Equipment (Tables)

12 Months Ended

Dec. 31, 2021

Property Plant And Equipment [Abstract]

Property and Equipment

Property and equipment consisted of the following at December 31, 2021 and 2020 (in thousands):

		2021				2020
Equipment		$	7,742,101			$	7,647,451
Oil and natural gas properties			229,403				222,738
Buildings			182,280				193,503
Land			24,562				25,781
Total property and equipment			8,178,346				8,089,473
Less accumulated depreciation, depletion, amortization and impairment			(5,846,591	)			(5,328,432	)
Property and equipment, net		$	2,331,755			$	2,761,041

Summary of Depreciation, Depletion, Amortization and Impairment Expense related to Property and Equipment and Intangible Assets and Liabilities

Depreciation, depletion, amortization and impairment — The following table summarizes depreciation, depletion, amortization and impairment expense related to property and equipment, intangible assets and liabilities for 2021, 2020 and 2019 (in thousands):

		2021				2020				2019
Depreciation and impairment expense		$	818,999			$	644,943			$	974,206
Amortization expense			24,606				19,281				17,722
Depletion expense			5,573				6,686				11,945
Total		$	849,178			$	670,910			$	1,003,873

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Schedule of depreciation and amortization expense.

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- Definition

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.

+ 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(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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