Insider Stock Trading

Filing Date	T Date	Ticker	Issuer	Inc	Sector	Ind	Industry	Owner	oSt	Rel	Title	#f	T	TVal	Price	Qty	oc	Own	H
5/28/26 16:34	5/26/26	TUSK	Mammoth Energy Services, Inc.	DE	Energy	OilSv	Oil & Gas Field Services	Amron Arthur H	OK	D		1	P.m	18	3.25	6	10	63	D
5/27/26 20:39	5/22/26	NESR	National Energy Services Reunited Corp.	D8	Energy	OilSv	Oil & Gas Field Services	Al-Nowais Yousif Mohammed Ali Nasser	TX	D		4	S.m	-47,264	26.22	-1,802		5,053	I
5/27/26 17:30	5/27/26	SLB	Slb Limited/Nv	P8	Energy	OilSv	Oil & Gas Field Services	Le Peuch Olivier	TX	DO	CEO	3	S	-4,101	54.68	-75		1,416	D
5/21/26 20:48	5/19/26	WTTR	Select Water Solutions, Inc.	DE	Energy	OilSv	Oil & Gas Field Services	Crestview Partners II Gp, L.P.	NY	T		3	S.ad	-155,120	16.43	-9,442		13,791	I
5/20/26 17:32	5/20/26	LBRT	Liberty Energy Inc.		Energy	OilSv	Oil & Gas Field Services	Stock Michael	CO	O	CFO	1	S	-670	33.48	-20		800	D
5/19/26 17:58	5/18/26	PUMP	Propetro Holding Corp.	TX	Energy	OilSv	Oil & Gas Field Services	Berg Mark Stephen	TX	D		1	M.d	0	0.00	28	98	57	D
5/19/26 17:58	5/18/26	PUMP	Propetro Holding Corp.	TX	Energy	OilSv	Oil & Gas Field Services	Armour Spencer D III	TX	D		1	M.d	0	0.00	28	24	145	D
5/19/26 17:58	5/18/26	PUMP	Propetro Holding Corp.	TX	Energy	OilSv	Oil & Gas Field Services	Gobe Phillip A	TX	D		1	M.d	0	0.00	28	14	236	D
5/19/26 17:58	5/18/26	PUMP	Propetro Holding Corp.	TX	Energy	OilSv	Oil & Gas Field Services	Vion Michele	TX	D		1	M.d	0	0.00	28	63	73	D
5/19/26 17:58	5/18/26	PUMP	Propetro Holding Corp.	TX	Energy	OilSv	Oil & Gas Field Services	Ricciardello Mary P	TX	D		1	M.d	0	0.00	28	66	71	D
5/19/26 17:58	5/18/26	PUMP	Propetro Holding Corp.	TX	Energy	OilSv	Oil & Gas Field Services	Best Anthony James	TX	D		1	M.d	0	0.00	28	25	139	D
5/19/26 17:57	5/18/26	PUMP	Propetro Holding Corp.	TX	Energy	OilSv	Oil & Gas Field Services	Lawrence G Larry	TX	D		1	M.d	0	0.00	28	79	64	D
5/19/26 17:15	5/18/26	OII	Oceaneering International Inc	DE	Energy	OilSv	Oil & Gas Field Services	Larson Roderick A.	TX	DO	P,CEO	1	S	-191	38.27	-5		649	I
5/18/26 17:29	5/14/26	WTTR	Select Water Solutions, Inc.	DE	Energy	OilSv	Oil & Gas Field Services	Burnett Richard Alan	TX	D		1	S.m	-1,218	18.74	-65		72	D
5/18/26 15:24	5/15/26	HAL	Halliburton Co	DE	Energy	OilSv	Oil & Gas Field Services	Beckwith Van H.	TX	O	EVP,Secr	2	S	-8,853	40.62	-218		345	D
5/14/26 16:59	5/12/26	OII	Oceaneering International Inc	DE	Energy	OilSv	Oil & Gas Field Services	McDonald Martin J	TX	O	SVP,Subs	1	S.m	-2,690	38.43	-70		49	D
5/12/26 21:35	5/11/26	WTTR	Select Water Solutions, Inc.	DE	Energy	OilSv	Oil & Gas Field Services	Skarke Michael	TX	O	EVP,COO	1	S.m	-1,914	17.40	-110		361	D
5/12/26 21:32	5/11/26	WTTR	Select Water Solutions, Inc.	DE	Energy	OilSv	Oil & Gas Field Services	Szymanski Brian	TX	O	Chief Ac	1	S	-341	17.04	-20		115	D
5/8/26 18:24	5/8/26	WTTR	Select Water Solutions, Inc.	DE	Energy	OilSv	Oil & Gas Field Services	Fielder Robin H	TX	D		1	S	-454	16.80	-27		43	D
5/7/26 16:41	5/7/26	SLB	Slb Limited/Nv	P8	Energy	OilSv	Oil & Gas Field Services	De La Chevardiere Patrick	TX	D		2	S.m	-317	52.79	-6		17	D
5/6/26 14:14	5/5/26	HAL	Halliburton Co	DE	Energy	OilSv	Oil & Gas Field Services	Maxwell Michael Casey	TX	O	P - West	1	S	-852	41.89	-20		94	D
5/5/26 19:52	5/5/26	LBRT	Liberty Energy Inc.		Energy	OilSv	Oil & Gas Field Services	Kimble William F	CO	DO	CB	1	S	-249	33.92	-7		90	D
5/4/26 16:37	5/1/26	CLB	Core Laboratories Inc. /De/	DE	Energy	OilSv	Oil & Gas Field Services	Tattoli Mark Damian	TX	O	SVP,GC,S	1	M.d	0	0.00	0	1	29	D
5/1/26 18:44	5/1/26	SLB	Slb Limited/Nv	P8	Energy	OilSv	Oil & Gas Field Services	Gassen Steve Matthew	TX	O	EVP,Geog	2	S.d	-4,323	49.83	-87		53	D
5/1/26 18:44	5/1/26	SLB	Slb Limited/Nv	P8	Energy	OilSv	Oil & Gas Field Services	Gassen Steve Matthew	TX	O	EVP,Geog	2	M.d	4,323	49.83	87		53	D
5/1/26 12:11	4/30/26	HAL	Halliburton Co	DE	Energy	OilSv	Oil & Gas Field Services	Young Tobi M.	TX	D		1	S.d	-256	41.72	-6		15	D
5/1/26 12:05	4/30/26	HAL	Halliburton Co	DE	Energy	OilSv	Oil & Gas Field Services	McKeon Timothy	TX	O	SVP,Trea	2	S.d	-496	39.65	-13		82	D
4/22/26 16:47	3/12/26	SPRU	Spruce Power Holding Corp	DE	Energy	OilSv	Oil & Gas Field Services	Steel Partners Holdings L.P.	NY	T		9	P.m	867	4.09	212	7	3,429	I
4/8/26 12:22	4/1/26	CLB	Core Laboratories Inc. /De/	DE	Energy	OilSv	Oil & Gas Field Services	Murray Katherine	TX	D		1	M.d	0	0.00	8	38	29	D
4/7/26 19:47	4/1/26	CLB	Core Laboratories Inc. /De/	DE	Energy	OilSv	Oil & Gas Field Services	Anastasio Curt	TX	D		1	M.d	0	0.00	8	51	24	D
4/7/26 19:46	4/1/26	CLB	Core Laboratories Inc. /De/	DE	Energy	OilSv	Oil & Gas Field Services	Klingensmith Harvey Robert	TX	D		1	M.d	0	0.00	8	19	50	D
4/7/26 19:45	4/1/26	CLB	Core Laboratories Inc. /De/	DE	Energy	OilSv	Oil & Gas Field Services	Temeng Kwaku	TX	D		1	M.d	0	0.00	8	32	34	D
4/7/26 19:43	4/1/26	CLB	Core Laboratories Inc. /De/	DE	Energy	OilSv	Oil & Gas Field Services	Martinovich Robert F	TX	D		1	M.d	0	0.00	8		8	D
4/7/26 19:41	4/1/26	CLB	Core Laboratories Inc. /De/	DE	Energy	OilSv	Oil & Gas Field Services	Carnes Martha Z.	TX	D		1	M.d	0	0.00	8	17	54	D
3/30/26 13:58	3/27/26	HAL	Halliburton Co	DE	Energy	OilSv	Oil & Gas Field Services	Miller Jeffrey Allen	TX	DO	Dir,P,CE	1	S.d	-6,338	40.00	-158		1,013	D
3/17/26 16:32	3/13/26	RNGR	Ranger Energy Services, Inc.	TX	Energy	OilSv	Oil & Gas Field Services	Hooker J. Matt	TX	O	EVP,Well	1	M.d	0	0.00	4	4	103	D
3/17/26 16:30	3/13/26	RNGR	Ranger Energy Services, Inc.	TX	Energy	OilSv	Oil & Gas Field Services	Cougle Melissa	TX	O	EVP,CFO	1	M.d	0	0.00	5	7	87	D
3/17/26 16:29	3/13/26	RNGR	Ranger Energy Services, Inc.	TX	Energy	OilSv	Oil & Gas Field Services	Bodden Stuart	TX	DO	CEO	1	M.d	0	0.00	15	4	369	D
3/17/26 13:47	3/16/26	HAL	Halliburton Co	DE	Energy	OilSv	Oil & Gas Field Services	Slocum Jeffrey Shannon	TX	DO	Dir,EVP,	1	S.d	-184	33.82	-5		187	D
3/13/26 17:03	3/11/26	OII	Oceaneering International Inc	DE	Energy	OilSv	Oil & Gas Field Services	McEvoy M Kevin	TX	D		1	S	-906	35.27	-26		130	D
3/9/26 16:18	3/5/26	NGS	Natural Gas Services Group Inc		Energy	OilSv	Oil & Gas Field Services	Taylor Stephen Charles	TX	D		1	S.dm	-3,748	37.48	-100		290	D
3/5/26 16:14	3/4/26	PUMP	Propetro Holding Corp.	TX	Energy	OilSv	Oil & Gas Field Services	Mitchell John J	TX	O	Gen. Cou	1	M.d	0	0.00	19	19	118	D
3/5/26 16:14	3/4/26	PUMP	Propetro Holding Corp.	TX	Energy	OilSv	Oil & Gas Field Services	Munoz Adam	TX	O	P,COO	1	M.d	0	0.00	37	21	219	D
3/5/26 16:14	3/4/26	PUMP	Propetro Holding Corp.	TX	Energy	OilSv	Oil & Gas Field Services	Davila Celina A	TX	O	Chief Ac	1	M.d	0	0.00	6	23	32	D
3/5/26 16:13	3/4/26	PUMP	Propetro Holding Corp.	TX	Energy	OilSv	Oil & Gas Field Services	Fietz Shelby Kyle	TX	O	Chief Co	1	M.d	0	0.00	19	9	234	D
3/5/26 16:13	3/4/26	PUMP	Propetro Holding Corp.	TX	Energy	OilSv	Oil & Gas Field Services	Sledge Samuel D	TX	DO	CEO	1	M.d	0	0.00	84	15	649	D

D	Derivative transaction in filing (usually option exercise)
M	Multiple transactions in filing; earliest reported transaction date and weighted average transaction price
A	Amended filing
E	Error detected in filing

S - Sale	Sale of securities on an exchange or to another person
S - Sale+OE	Sale of securities on an exchange or to another person (after option exercise)
F - Tax	Payment of exercise price or tax liability using portion of securities received from the company
P - Purchase	Purchase of securities on an exchange or from another person

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