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Fixed Assets, Mineral Leaseholds, and Asset Retirement Obligations (Tables)
3 Months Ended
Mar. 31, 2025
Fixed Assets And Asset Retirement Obligations [Abstract]  
Schedule of Fixed Assets
Fixed assets consisted of the following: 
March 31, 2025December 31, 2024
Crude oil and natural gas pipelines and related assets$3,434,423 $3,367,908 
Onshore facilities, machinery and equipment289,576 293,436 
Transportation equipment22,957 22,976 
Marine vessels1,071,235 1,062,720 
Land, buildings and improvements88,545 88,545 
Office equipment, furniture and fixtures10,152 10,101 
Construction in progress(1)
375,424 408,509 
Other26,665 26,665 
Fixed assets, at cost5,318,977 5,280,860 
Less: Accumulated depreciation(1,783,100)(1,740,974)
Net fixed assets$3,535,877 $3,539,886 
Schedule of Depreciation and Depletion Expense
Our depreciation expense for the periods presented was as follows:
Three Months Ended
March 31,
20252024
Depreciation expense$53,600 $46,932 
Schedule of Change in Asset Retirement Obligation
The following table presents information regarding our AROs since December 31, 2024:
ARO liability balance, December 31, 2024
$254,054 
Accretion expense2,841 
Settlements(9)
ARO liability balance, March 31, 2025
$256,886