Wood Group Gas Turbine Services Holdings, Inc.

Form 5500

ETHOSENERGY GTS HOLDINGS (U.S.), LLC

3100 South Sam Houston Parkway East, Houston, Tx 77047 (713) 812-2300 EIN:76-0466008 Plan Admin:Sonia Mejia-Syed

Year	Plan Name	Participants BOY/EOY	Assets BOY/EOY
2023	Plan NameETHOSENERGY HEALTH AND WELFARE PLAN Plan #501 Participants BOY/EOY1,430 / 0 Assets BOY/EOY$0 / $0	2023	ETHOSENERGY HEALTH AND WELFARE PLAN - Plan #501	1,430 / 0	$0 / $0
2022	Plan NameETHOSENERGY 401(K) PLAN Plan #001 Participants BOY/EOY2,170 / 2,119 Assets BOY/EOY$336,166,480 / $268,771,812	2022	ETHOSENERGY 401(K) PLAN - Plan #001	2,170 / 2,119	$336,166,480 / $268,771,812
2022	Plan NameETHOSENERGY (WEST), INC. PLAN Plan #003 Participants BOY/EOY279 / 264 Assets BOY/EOY$41,061,037 / $33,352,582	2022	ETHOSENERGY (WEST), INC. PLAN - Plan #003	279 / 264	$41,061,037 / $33,352,582
2022	Plan NameETHOSENERGY PENSION PLAN FOR UNION EMPLOYEES Plan #002 Participants BOY/EOY122 / 122 Assets BOY/EOY$8,370,808 / $6,272,472	2022	ETHOSENERGY PENSION PLAN FOR UNION EMPLOYEES - Plan #002	122 / 122	$8,370,808 / $6,272,472
2022	Plan NameETHOSENERGY PENSION PLAN FOR EMPLOYEES OF THE EXXONMOBIL CO-GENERATION FACILITY Plan #004 Participants BOY/EOY77 / 75 Assets BOY/EOY$1,287,722 / $1,458,460	2022	ETHOSENERGY PENSION PLAN FOR EMPLOYEES OF THE EXXONMOBIL CO-GENERATION FACILITY - Plan #004	77 / 75	$1,287,722 / $1,458,460
2022	Plan NameETHOSENERGY HEALTH AND WELFARE PLAN Plan #501 Participants BOY/EOY1,471 / 0 Assets BOY/EOY$0 / $0	2022	ETHOSENERGY HEALTH AND WELFARE PLAN - Plan #501	1,471 / 0	$0 / $0
2021	Plan NameETHOSENERGY 401(K) PLAN Plan #001 Participants BOY/EOY2,153 / 2,170 Assets BOY/EOY$315,039,065 / $336,166,480	2021	ETHOSENERGY 401(K) PLAN - Plan #001	2,153 / 2,170	$315,039,065 / $336,166,480
2021	Plan NameETHOSENERGY (WEST), INC. PLAN Plan #003 Participants BOY/EOY279 / 279 Assets BOY/EOY$38,021,493 / $41,061,037	2021	ETHOSENERGY (WEST), INC. PLAN - Plan #003	279 / 279	$38,021,493 / $41,061,037
2021	Plan NameETHOSENERGY PENSION PLAN FOR UNION EMPLOYEES Plan #002 Participants BOY/EOY123 / 122 Assets BOY/EOY$7,857,956 / $8,370,808	2021	ETHOSENERGY PENSION PLAN FOR UNION EMPLOYEES - Plan #002	123 / 122	$7,857,956 / $8,370,808
2021	Plan NameETHOSENERGY PENSION PLAN FOR EMPLOYEES OF THE EXXONMOBIL CO-GENERATION FACILITY Plan #004 Participants BOY/EOY74 / 77 Assets BOY/EOY$847,733 / $1,287,722	2021	ETHOSENERGY PENSION PLAN FOR EMPLOYEES OF THE EXXONMOBIL CO-GENERATION FACILITY - Plan #004	74 / 77	$847,733 / $1,287,722
2021	Plan NameETHOSENERGY HEALTH AND WELFARE PLAN Plan #501 Participants BOY/EOY1,461 / 0 Assets BOY/EOY$0 / $0	2021	ETHOSENERGY HEALTH AND WELFARE PLAN - Plan #501	1,461 / 0	$0 / $0
2020	Plan NameETHOSENERGY 401(K) PLAN Plan #001 Participants BOY/EOY2,151 / 2,153 Assets BOY/EOY$256,078,414 / $315,039,065	2020	ETHOSENERGY 401(K) PLAN - Plan #001	2,151 / 2,153	$256,078,414 / $315,039,065
2020	Plan NameETHOSENERGY (WEST), INC. PLAN Plan #003 Participants BOY/EOY293 / 279 Assets BOY/EOY$32,416,666 / $38,021,493	2020	ETHOSENERGY (WEST), INC. PLAN - Plan #003	293 / 279	$32,416,666 / $38,021,493
2020	Plan NameETHOSENERGY PENSION PLAN FOR UNION EMPLOYEES Plan #002 Participants BOY/EOY123 / 123 Assets BOY/EOY$7,045,798 / $7,857,956	2020	ETHOSENERGY PENSION PLAN FOR UNION EMPLOYEES - Plan #002	123 / 123	$7,045,798 / $7,857,956
2020	Plan NameETHOSENERGY PENSION PLAN FOR EMPLOYEES OF THE EXXONMOBIL CO-GENERATION FACILITY Plan #004 Participants BOY/EOY74 / 74 Assets BOY/EOY$348,414 / $847,733	2020	ETHOSENERGY PENSION PLAN FOR EMPLOYEES OF THE EXXONMOBIL CO-GENERATION FACILITY - Plan #004	74 / 74	$348,414 / $847,733
2020	Plan NameETHOSENERGY HEALTH AND WELFARE PLAN Plan #501 Participants BOY/EOY1,654 / 0 Assets BOY/EOY$0 / $0	2020	ETHOSENERGY HEALTH AND WELFARE PLAN - Plan #501	1,654 / 0	$0 / $0
2019	Plan NameETHOSENERGY 401(K) PLAN Plan #001 Participants BOY/EOY2,026 / 2,151 Assets BOY/EOY$208,484,737 / $256,078,414	2019	ETHOSENERGY 401(K) PLAN - Plan #001	2,026 / 2,151	$208,484,737 / $256,078,414
2019	Plan NameETHOSENERGY (WEST), INC. PLAN Plan #003 Participants BOY/EOY314 / 293 Assets BOY/EOY$27,638,458 / $32,416,666	2019	ETHOSENERGY (WEST), INC. PLAN - Plan #003	314 / 293	$27,638,458 / $32,416,666
2019	Plan NameETHOSENERGY (NORTHEAST) 401(K) PLAN Plan #008 Participants BOY/EOY170 / 126 Assets BOY/EOY$22,246,647 / $20,458,281	2019	ETHOSENERGY (NORTHEAST) 401(K) PLAN - Plan #008	170 / 126	$22,246,647 / $20,458,281
2019	Plan NameETHOSENERGY PENSION PLAN FOR UNION EMPLOYEES Plan #002 Participants BOY/EOY124 / 123 Assets BOY/EOY$5,922,383 / $7,045,798	2019	ETHOSENERGY PENSION PLAN FOR UNION EMPLOYEES - Plan #002	124 / 123	$5,922,383 / $7,045,798
2019	Plan NameETHOSENERGY PENSION PLAN FOR EMPLOYEES OF THE EXXONMOBIL CO-GENERATION FACILITY Plan #004 Participants BOY/EOY66 / 74 Assets BOY/EOY$0 / $348,414	2019	ETHOSENERGY PENSION PLAN FOR EMPLOYEES OF THE EXXONMOBIL CO-GENERATION FACILITY - Plan #004	66 / 74	$0 / $348,414
2019	Plan NameETHOSENERGY HEALTH AND WELFARE PLAN Plan #501 Participants BOY/EOY1,532 / 0 Assets BOY/EOY$0 / $0	2019	ETHOSENERGY HEALTH AND WELFARE PLAN - Plan #501	1,532 / 0	$0 / $0