|
NEX
|
NexTier Oilfield Solutions Inc.
|
US
|
NYSE
|
|
NOV
|
National Oilwell Varco, Inc.
|
US
|
NYSE
|
|
OIS
|
Oil States International, Inc.
|
US
|
NYSE
|
|
PDS
|
Precision Drilling Corporation
|
US
|
NYSE
|
|
RES
|
RPC, Inc.
|
US
|
NYSE
|
|
SLB
|
Schlumberger N.V.
|
US
|
NYSE
|
|
TS
|
Tenaris S.A.
|
US
|
NYSE
|
|
ATONY
|
Anton Oilfld Sv ADR
|
US
|
OTC
|
|
CAWLF
|
Cwc Energy Services
|
US
|
OTC
|
|
CTBG
|
Coil Tubing Technology Inc
|
US
|
OTC
|
|
KEGX
|
Key Energy Services Inc
|
US
|
OTC
|
|
SNVVF
|
Step Energy Services
|
US
|
OTC
|
|
TNRSF
|
Tenaris Sa Luxembrg
|
US
|
OTC
|
|
TOLWF
|
Trican Well Service
|
US
|
OTC
|
|
CFW
|
Calfrac Well Services Ltd.
|
CA
|
TSX
|
|
CWC
|
CWC Energy Services Corp.
|
CA
|
TSXV
|
|
ESN
|
Essential Energy Services Ltd.
|
CA
|
TSX
|
|
PD
|
Precision Drilling Corporation
|
CA
|
TSX
|
|
STEP
|
Step Energy Services Ltd
|
CA
|
TSX
|
|
TCW
|
Trican Well Service Ltd.
|
CA
|
TSX
|