SLB
|
Schlumberger N.V.
|
20.03%
|
US
|
NYSE
|
HAL
|
Halliburton Company
|
11.93%
|
US
|
NYSE
|
BKR
|
Baker Hughes Company
|
8.49%
|
US
|
NASDAQ
|
NOV
|
National Oilwell Varco, Inc.
|
4.89%
|
US
|
NYSE
|
RIG
|
Transocean Ltd (Switzerland)
|
4.74%
|
US
|
NYSE
|
TS
|
Tenaris S.A.
|
4.70%
|
US
|
NYSE
|
FTI
|
FMC Technologies, Inc.
|
4.48%
|
US
|
NYSE
|
VAL
|
Valaris Limited
|
4.45%
|
US
|
NYSE
|
CHX
|
ChampionX Corporation
|
4.35%
|
US
|
NASDAQ
|
PTEN
|
Patterson-UTI Energy, Inc.
|
4.30%
|
US
|
NASDAQ
|
HP
|
Helmerich & Payne, Inc.
|
4.14%
|
US
|
NYSE
|
WHD
|
Cactus, Inc.
|
4.08%
|
US
|
NYSE
|
NEX
|
NexTier Oilfield Solutions Inc.
|
2.60%
|
US
|
NYSE
|
LBRT
|
Liberty Oilfield Services Inc.
|
2.44%
|
US
|
NYSE
|
NBR
|
Nabors Industries Ltd.
|
2.02%
|
US
|
NYSE
|
OII
|
Oceaneering International, Inc.
|
2.01%
|
US
|
NYSE
|
RES
|
RPC, Inc.
|
1.65%
|
US
|
NYSE
|
HLX
|
Helix Energy Solutions Group, Inc.
|
1.30%
|
US
|
NYSE
|
PUMP
|
ProPetro Holding Corp.
|
1.10%
|
US
|
NYSE
|
WTTR
|
Select Energy Services, Inc.
|
1.07%
|
US
|
NYSE
|