|
DWSN
|
Dawson Geophysical Company
|
US
|
NASDAQ
|
|
GEOS
|
Geospace Technologies Corporation
|
US
|
NASDAQ
|
|
MIND
|
Mitcham Industries, Inc.
|
US
|
NASDAQ
|
|
MINDP
|
Mitcham Industries, Inc. - Series A 9.00% Series A Cumulative Preferred Stock
|
US
|
NASDAQ
|
|
GGX
|
Gas2Grid Limited
|
AU
|
ASX
|
|
CGGYY
|
CGG
|
US
|
OTC
|
|
CGPVF
|
CGG
|
US
|
OTC
|
|
FSEI
|
First Seismic Corp
|
US
|
OTC
|
|
PGEJF
|
Petroleum Geo Svcs
|
US
|
OTC
|
|
TXLZF
|
Tesla Expl Ltd
|
US
|
OTC
|
|
PSD
|
Pulse Seismic Inc.
|
CA
|
TSX
|
|
526397
|
Alphageo (India) Limited
|
IN
|
BSE
|
|
GDGE
|
CGG SA
|
DE
|
F
|
|
E36
|
SeaBird Exploration Plc
|
DE
|
F
|
|
RVS1
|
DAWSON GEOPHYS. DL-30
|
DE
|
F
|
|
TGC
|
TGS ASA
|
DE
|
F
|
|
TGC0
|
TGS ASA SP.ADR/1
|
DE
|
F
|
|
PSD
|
Pulse Seismic Inc
|
CA
|
TO
|
|
VIRI
|
Viridien
|
FR
|
PA
|
|
ALPHAGEO
|
Alphageo (India) Limited
|
IN
|
NSE
|