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Property, Plant and Equipment | 12 Months Ended
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Dec. 31, 2023
Property, Plant and Equipment |
Property, Plant and Equipment | ​ Note 8 Property, Plant and Equipment ​ The major components of our property, plant and equipment are as follows: ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | December 31, |
​ |  | 2023 |  | 2022 |
​ | ​ | (In thousands) |
Land | ​ | $ | 32,074 | ​ | $ | 22,672 | ​
Buildings | ​ |  | 140,330 | ​ |  | 134,063 | ​
Drilling rigs and related equipment | ​ |  | 11,959,989 | ​ |  | 11,722,404 | ​
Oilfield hauling and mobile equipment | ​ |  | 233,920 | ​ |  | 233,708 | ​
Other machinery and equipment | ​ |  | 237,567 | ​ |  | 216,233 | ​
​ | ​ | $ | 12,603,880 | ​ | $ | 12,329,080 | ​
Less: accumulated depreciation and amortization | ​ |  | (9,705,152) | ​ |  | (9,302,980) | ​
​ | ​ | $ | 2,898,728 | ​ | $ | 3,026,100 | ​
Depreciation expense included in depreciation and amortization expense in our consolidated statements of income (loss) totaled $644.9 million, $663.1 million and $689.2 million during 2023, 2022 and 2021, respectively. ​ Repair and maintenance expense included in direct costs in our consolidated statements of income (loss) totaled $228.2 million, $202.5 million and $153.9 million during 2023, 2022 and 2021, respectively.

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