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Fixed Assets, Mineral Leaseholds, and Asset Retirement Obligations (Tables)
 6 Months Ended
Jun. 30, 2024
Fixed Assets And Asset Retirement Obligations [Abstract]  
Schedule of Fixed Assets
Fixed assets consisted of the following: 
June 30, 2024December 31, 2023
Crude oil and natural gas pipelines and related assets$2,953,262 $2,945,215 
Alkali facilities, machinery and equipment1,163,200 1,147,291 
Onshore facilities, machinery and equipment291,039 271,271 
Transportation equipment30,588 24,913 
Marine vessels1,024,287 1,021,080 
Land, buildings and improvements296,424 293,733 
Office equipment, furniture and fixtures25,268 25,029 
Construction in progress(1)
851,892 731,197 
Other29,311 41,168 
Fixed assets, at cost6,665,271 6,500,897 
Less: Accumulated depreciation(2,090,138)(1,972,596)
Net fixed assets$4,575,133 $4,528,301 
Schedule of Mineral Leaseholds
Our Mineral Leaseholds, relating to our Alkali Business, consist of the following:
June 30, 2024December 31, 2023
Mineral leaseholds$566,019 $566,019 
Less: Accumulated depletion(27,985)(25,499)
Mineral leaseholds, net of accumulated depletion$538,034 $540,520 
Schedule of Depreciation and Depletion Expense
Our depreciation and depletion expense for the periods presented were as follows:
Three Months Ended
June 30, 		Six Months Ended
June 30,
2024202320242023
Depreciation expense$73,341 $63,913 $143,026 $133,486 
Depletion expense1,340 1,268 2,486 2,149 
Schedule of Change in Asset Retirement Obligation
The following table presents information regarding our AROs since December 31, 2023:
ARO liability balance, December 31, 2023
$243,708 
Accretion expense5,554 
Settlements(298)
ARO liability balance, June 30, 2024
$248,964