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Fixed Assets, Mineral Leaseholds, and Asset Retirement Obligations (Tables)
3 Months Ended
Mar. 31, 2022
Fixed Assets And Asset Retirement Obligations [Abstract]  
Schedule of Fixed Assets
Fixed assets consisted of the following:
 
March 31, 2022December 31, 2021
Crude oil and natural gas pipelines and related assets$2,840,622 $2,839,443 
Alkali facilities, machinery and equipment675,940 670,880 
Onshore facilities, machinery and equipment269,107 269,245 
Transportation equipment21,056 21,106 
Marine vessels1,018,919 1,018,284 
Land, buildings and improvements228,450 227,540 
Office equipment, furniture and fixtures26,535 23,965 
Construction in progress400,840 350,137 
Other37,586 43,440 
Fixed assets, at cost5,519,055 5,464,040 
Less: Accumulated depreciation(1,607,285)(1,551,855)
Net fixed assets$3,911,770 $3,912,185 
Schedule of Mineral Leaseholds
Our Mineral Leaseholds, relating to our Alkali Business, consist of the following:
March 31,
2022
December 31, 2021
Mineral leaseholds$566,019 $566,019 
Less: Accumulated depletion(18,034)(17,014)
Mineral leaseholds, net of accumulated depletion$547,985 $549,005 
Schedule of Depreciation and Depletion Expense
Our depreciation and depletion expense for the periods presented was as follows:
Three Months Ended
March 31,
20222021
Depreciation expense$65,750 $62,702 
Depletion expense1,020 912 
Schedule of Change in Asset Retirement Obligation
The following table presents information regarding our AROs since December 31, 2021:
ARO liability balance, December 31, 2021$220,906 
Accretion expense3,447 
Settlements(1,461)
ARO liability balance, March 31, 2022$222,892 
Schedule of Forecast of Accretion Expense of Asset Retirement Obligations
With respect to our AROs, the following table presents our forecast of accretion expense for the periods indicated:
Remainder of2022$9,486 
2023$10,583 
2024$9,767 
2025$10,469 
2026$8,216