Fixed Assets, Mineral Leaseholds, and Asset Retirement Obligations (Tables)

3 Months Ended

Mar. 31, 2023

Fixed Assets And Asset Retirement Obligations [Abstract]

Schedule of Fixed Assets

Fixed assets consisted of the following: 

	March 31, 2023		December 31, 2022
Crude oil and natural gas pipelines and related assets	$	2,844,999	$	2,844,288
Alkali facilities, machinery and equipment	699,684		701,313
Onshore facilities, machinery and equipment	270,164		269,949
Transportation equipment	23,145		22,340
Marine vessels	1,010,704		1,017,087
Land, buildings and improvements	235,705		231,651
Office equipment, furniture and fixtures	24,299		24,271
Construction in progress(1)	785,092		712,971
Other	41,168		41,168
Fixed assets, at cost	5,934,960		5,865,038
Less: Accumulated depreciation	(1,818,018)		(1,768,465)
Net fixed assets	$	4,116,942	$	4,096,573

Schedule of Mineral Leaseholds

Our Mineral Leaseholds, relating to our Alkali Business, consist of the following:

	March 31, 2023		December 31, 2022
Mineral leaseholds	$	566,019	$	566,019
Less: Accumulated depletion	(21,778)		(20,897)
Mineral leaseholds, net of accumulated depletion	$	544,241	$	545,122

Schedule of Depreciation and Depletion Expense

Our depreciation and depletion expense for the periods presented were as follows:

	Three Months Ended March 31,
	2023		2022
Depreciation expense	$	69,573	$	65,750
Depletion expense	881		1,020

Schedule of Change in Asset Retirement Obligation

The following table presents information regarding our AROs since December 31, 2022:

ARO liability balance, December 31, 2022	$	228,573
Accretion expense	3,261
Changes in estimate	3,915
Settlements	(45)
ARO liability balance, March 31, 2023	$	235,704