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4

Changes in Ownership

DAWSON GEOPHYSICAL CO Filed 2013-10-07 Acc 0001179110-13-015372

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4 Changes in Ownership , xslF345X03/edgar.xml

Around this filing

2013-12-19 4 Changes in Ownership
2013-10-08 8-K Results of operations · Regulation FD disclosure
2013-10-07 4 Changes in Ownership
2013-10-03 CORRESP Correspondence Between Filers and SEC Staff
2013-09-27 4 Changes in Ownership

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