|
CLMT
|
Calumet Specialty Products Partners, L.P.
|
US
|
NASDAQ
|
|
HAL
|
Halliburton Company
|
US
|
NYSE
|
|
NOV
|
National Oilwell Varco, Inc.
|
US
|
NYSE
|
|
NR
|
Newpark Resources, Inc.
|
US
|
NYSE
|
|
SLB
|
Schlumberger N.V.
|
US
|
NYSE
|
|
WCN
|
Waste Connections, Inc.
|
US
|
NYSE
|
|
ATONY
|
Anton Oilfld Sv ADR
|
US
|
OTC
|
|
BRYFF
|
Bri-Chem Corp
|
US
|
OTC
|
|
SBOEF
|
Schoeller Bleckmann Oilfield Equipment Ag
|
US
|
OTC
|
|
SBOEY
|
Schoeller-Bleckmann Oilfield Equipment Ag [Austr
|
US
|
OTC
|
|
BRY
|
Bri-Chem Corp.
|
CA
|
TSX
|
|
CEU
|
Canadian Energy Services & Technology Corp.
|
CA
|
TSX
|
|
LAC
|
Lithium Americas Corp.
|
CA
|
TSX
|
|
8331
|
Feishang Non-metal Materials
|
HK
|
HK
|
|
OBMD
|
Obm Drilchem PT
|
ID
|
JK
|
|
002629
|
Zhejiang Renzhi Co Ltd
|
CN
|
SHE
|
|
603619
|
Zhongman Petro & Natural Gas
|
CN
|
SHG
|
|
SBO
|
Schoeller-Bleckmann Oilfield Equipment Aktiengesellschaft
|
AT
|
VI
|