COMPENSATION PLANS (Tables)

12 Months Ended

Dec. 31, 2017

Summary of activity in share-based plans


	Number of units	Weighted average grant date fair value per unit		Intrinsic value
				(in thousands)

Non-vested grants at January 1, 2015	843,340	$	37.16	$	36,306
Granted	303,165		37.18
Vested (1)	(202,778)		38.85
Forfeited	(3,934)		36.49
Non-vested grants at December 31, 2015	939,793		36.80		12,678
Granted	960,992		12.38
Vested (1)	(284,272)		31.51
Forfeited	(11,765)		26.39
Non-vested grants at December 31, 2016	1,604,748		23.19		36,027
Granted	475,310		23.17
Vested (1)	(350,516)		40.73
Forfeited	(35,516)		20.01
Non-vested grants at December 31, 2017	1,694,026		19.62		33,372

(1)

During the years ended December 31, 2017, 2016 and 2015, the ARLP Partnership issued 222,011, 176,319 and 128,150, respectively, unrestricted common units to the ARLP LTIP participants. The remaining vested units were settled in cash to satisfy the individual statutory minimum tax obligations of the ARLP LTIP participants.

SERP And MGP Deferred Compensation Plan

Compensation Plans

Summary of activity in share-based plans


	Number of units	Weighted average grant date fair value per unit		Intrinsic value
				(in thousands)

Phantom units outstanding as of January 1, 2015	368,981	$	34.02	$	15,885
Granted	60,160		21.38
Phantom units outstanding as of December 31, 2015	429,141		32.25		5,789
Granted	74,799		16.31
Issued	(9,922)		33.76
Phantom units outstanding as of December 31, 2016	494,018		29.77		11,091
Granted	67,766		20.38
Phantom units outstanding as of December 31, 2017	561,784		28.64		11,067

AGP Deferred Compensation Plan

Compensation Plans

Summary of activity in share-based plans


	Number of units	Weighted average grant date fair value per unit		Intrinsic value
				(in thousands)

Phantom units outstanding as of January 1, 2015	19,376	$	53.96	$	1,182
Granted	5,478		40.87
Issued	(3,167)		55.83
Phantom units outstanding as of December 31, 2015	21,687		50.38		438
Granted	11,383		19.15
Issued	(6,958)		50.73
Phantom units outstanding as of December 31, 2016	26,112		36.67		734
Granted	2,168		27.28
Issued	(4,357)		39.18
Phantom units outstanding as of December 31, 2017	23,923		35.36		641