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Common Unit-Based Compensation Plan (Tables)

6 Months Ended

Jun. 30, 2025

ARLP LTIP

Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]

Summary of non-vested share activity

​

​	​	​	​	​	​	​	​	​	​
​		Number of units		Weighted average grant date fair value per unit			Intrinsic value
​	​	​	​	​	​	​	(in thousands)		​
​	​	​	​	​	​	​	​	​	​
Non-vested grants at January 1, 2025	​	1,458,564	​	$	17.60	​	$	38,346	​
Granted (1)		376,853	​	​	26.92	​	​	​	​
Vested (2)		(625,649)	​		13.62	​	​	​	​
Forfeited		(11,528)	​		20.85	​	​	​	​
Non-vested grants at June 30, 2025		1,198,240	​		22.58	​	​	31,322	​

(1) The restricted units granted during 2025 have certain minimum-value guarantees per unit, regardless of whether the awards vest.

(2) During the six months ended June 30, 2025, we issued 366,043 unrestricted common units to the LTIP participants.  The remaining vested units were withheld to satisfy tax withholdings.

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