Ken Griffin Oil & Gas Equipment & Services

Citadel Advisors LLC

$509 Billion
Q1 2025

Stock List

Stock	Market Cap.	Holding Value (Reported)	# of Shares.	Last Trade
TS Tenaris Sa	$22.8B	$147 Million 0.03% of portfolio	3,766,310	Q1 2025 Added 81.27%
HAL Halliburton CO	$20B	$95.8 Million 0.02% of portfolio	3,774,375	Q1 2025 Added 165.54%
AROC Archrock, Inc.	$3.65B	$56 Million 0.01% of portfolio	2,135,639	Q1 2025 Added 10.95%
SLB Schlumberger Limited	$51.4B	$31.8 Million 0.01% of portfolio	760,230	Q1 2025 Reduced 75.06%
XPRO Expro Group Holdings N.V.	$1.02B	$23.8 Million 0.0% of portfolio	2,399,296	Q1 2025 Reduced 21.54%
VAL Valaris LTD	$3.72B	$22.6 Million 0.0% of portfolio	575,676	Q1 2025 Added 26.64%
LBRT Liberty Energy Inc.	$2.26B	$18.5 Million 0.0% of portfolio	1,168,086	Q1 2025 Reduced 43.92%
TDW Tidewater Inc	$2.36B	$17.2 Million 0.0% of portfolio	406,145	Q1 2025 Added 638.69%
NOV Nov Inc.	$5.27B	$17.1 Million 0.0% of portfolio	1,125,992	Q1 2025 Reduced 20.12%
WFRD Weatherford International PLC	$3.98B	$15.1 Million 0.0% of portfolio	282,612	Q1 2025 Added 204.93%
SOI Solaris Oilfield Infrastructure, Inc.	$442M	$11.5 Million 0.0% of portfolio	856,737	Q1 2025 Added 292.76%
DNOW Now Inc.	$1.55B	$9.51 Million 0.0% of portfolio	556,662	Q1 2025 Added 6.75%
RES Rpc Inc	$1.13B	$9.21 Million 0.0% of portfolio	1,675,241	Q1 2025 Reduced 1.32%
WHD Cactus, Inc.	$2.78B	$8.67 Million 0.0% of portfolio	189,257	Q1 2025 Added 379.06%
OIS Oil States International, Inc	$349M	$3.76 Million 0.0% of portfolio	729,553	Q1 2025 Added 88.45%
BKR Baker Hughes CO	$39.4B	$3.33 Million 0.0% of portfolio	75,735	Q1 2025 Reduced 89.56%
WTTR Select Energy Services, Inc.	$890M	$3.15 Million 0.0% of portfolio	299,562	Q1 2025 Added 142.05%
OII Oceaneering International Inc	$2.15B	$2.71 Million 0.0% of portfolio	124,245	Q1 2025 New
PUMP Pro Petro Holding Corp.	$687M	$1.7 Million 0.0% of portfolio	230,755	Q1 2025 Reduced 73.95%
RNGR Ranger Energy Services, Inc.	$307M	$1.61 Million 0.0% of portfolio	113,675	Q1 2025 New
VTOL Bristow Group Inc.	$943M	$1.02 Million 0.0% of portfolio	32,382	Q1 2025 Reduced 8.09%
BOOM Dmc Global Inc.	$164M	$821,000 0.0% of portfolio	97,607	Q1 2025 Added 499.55%
TTI Tetra Technologies Inc	$416M	$808,000 0.0% of portfolio	240,671	Q1 2025 Reduced 37.29%
NOA North American Construction Group Ltd.	$429M	$622,000 0.0% of portfolio	39,451	Q1 2025 Reduced 44.67%
FTI Technip Fmc PLC	$15.7B	$588,000 0.0% of portfolio	18,560	Q1 2025 Reduced 96.03%
MRC Mrc Global Inc.	$1.08B	$533,000 0.0% of portfolio	46,469	Q1 2025 Added 22.79%
FET Forum Energy Technologies, Inc.	$119M	$506,000 0.0% of portfolio	25,177	Q1 2025 Reduced 56.62%
GEOS Geospace Technologies Corp	$163M	$444,000 0.0% of portfolio	35,507	Q1 2025 New
NCSM Ncs Multistage Holdings, Inc.	$72.4M	$362,000 0.0% of portfolio	10,346	Q1 2025 New
NESR National Energy Services Reunited Corp.	$569M	$296,000 0.0% of portfolio	40,265	Q1 2025 New
NGS Natural Gas Services Group Inc	$310M	$288,000 0.0% of portfolio	13,123	Q1 2025 Added 215.68%
SND Smart Sand, Inc.	$90.6M	$183,000 0.0% of portfolio	71,008	Q1 2025 Added 62.0%
KLXE Klx Energy Services Holdings, Inc.	$23.2M	$160,000 0.0% of portfolio	45,871	Q1 2025 Reduced 26.1%
HLX Helix Energy Solutions Group Inc	$949M	$61,000 0.0% of portfolio	7,398	Q1 2025 Added 3,526.47%
DWSN Dawson Geophysical CO	$31.4M	$44,000 0.0% of portfolio	36,499	Q1 2025 New

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Ken Griffin

Ken Griffin is the founder and CEO of Citadel Advisors, a successful investment firm that uses technology and data-driven approaches to investing. Griffin is known for his expertise in quantitative investing and his innovative approach to investing. He has generated strong returns for his clients over the long term.

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