22 filings
DEF 14A
Dawson Geophysical Co
Definitive proxy
18 Dec 13
12:00am
DEF 14A
Dawson Geophysical Co
Definitive proxy
19 Dec 12
12:00am
DEF 14A
Dawson Geophysical Co
Definitive proxy
16 Dec 11
12:00am
DEF 14A
Dawson Geophysical Co
Definitive proxy
7 Dec 10
12:00am
DEF 14A
Dawson Geophysical Co
Definitive proxy
15 Dec 09
12:00am
PRER14A
s2tmhosfoqmbfjymj
9 Dec 05
Preliminary revised proxy
12:00am
PRE 14A
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17 Nov 98
Preliminary proxy
12:00am