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CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021
NET INCOME	$ 161,801	$ 44,165	$ 198,743	$ 68,991
OTHER COMPREHENSIVE INCOME:
OTHER COMPREHENSIVE INCOME	794	2,231	1,584	4,462
COMPREHENSIVE INCOME	162,595	46,396	200,327	73,453
Less: Comprehensive income attributable to noncontrolling interest	(323)	(130)	(613)	(208)
COMPREHENSIVE INCOME ATTRIBUTABLE TO ARLP	162,272	46,266	199,714	73,245
Defined benefit pension plan
OTHER COMPREHENSIVE INCOME:
Amortization of prior service cost	46	46	93	93
Amortization of net actuarial loss	489	1,142	972	2,283
Total recognized in accumulated other comprehensive loss	535	1,188	1,065	2,376
Pneumoconiosis benefits
OTHER COMPREHENSIVE INCOME:
Amortization of net actuarial loss	259	1,043	519	2,086
Total recognized in accumulated other comprehensive loss	$ 259	$ 1,043	$ 519	$ 2,086

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