|
ACDC
|
ProFrac Holding Corp.
|
US
|
NASDAQ
|
|
LBRT
|
Liberty Oilfield Services Inc.
|
US
|
NYSE
|
|
NBR
|
Nabors Industries Ltd.
|
US
|
NYSE
|
|
NEX
|
NexTier Oilfield Solutions Inc.
|
US
|
NYSE
|
|
PTEN
|
Patterson-UTI Energy, Inc.
|
US
|
NASDAQ
|
|
PUMP
|
ProPetro Holding Corp.
|
US
|
NYSE
|
|
SND
|
Smart Sand, Inc.
|
US
|
NASDAQ
|
|
SOI
|
Solaris Oilfield Infrastructure, Inc.
|
US
|
NYSE
|
|
TUSK
|
Mammoth Energy Services, Inc.
|
US
|
NASDAQ
|
|
USWS
|
U.S. Well Services, Inc.
|
US
|
NASDAQ
|
|
WTTR
|
Select Energy Services, Inc.
|
US
|
NYSE
|
|
KEGX
|
Key Energy Services Inc
|
US
|
OTC
|
|
SNVVF
|
Step Energy Services
|
US
|
OTC
|
|
TOLWF
|
Trican Well Service
|
US
|
OTC
|
|
CFW
|
Calfrac Well Services Ltd.
|
CA
|
TSX
|
|
GXE
|
Gear Energy Ltd.
|
CA
|
TSX
|
|
SHLE
|
Source Energy Services Ltd
|
CA
|
TSX
|
|
1SD
|
Smart Sand Inc
|
DE
|
F
|
|
O2C
|
Petro Welt Technologies AG
|
DE
|
F
|
|
603800
|
Suzhou Douson Drilling & Production Equipment Co Ltd
|
CN
|
SHG
|