Attached files
file | filename |
---|---|
EX-32.1 - EX-32.1 - DAWSON OPERATING CO | d789846dex321.htm |
EX-32.2 - EX-32.2 - DAWSON OPERATING CO | d789846dex322.htm |
EX-31.2 - EX-31.2 - DAWSON OPERATING CO | d789846dex312.htm |
EX-31.1 - EX-31.1 - DAWSON OPERATING CO | d789846dex311.htm |
EX-23.1 - EX-23.1 - DAWSON OPERATING CO | d789846dex231.htm |
EX-23.2 - EX-23.2 - DAWSON OPERATING CO | d789846dex232.htm |
EXCEL - IDEA: XBRL DOCUMENT - DAWSON OPERATING CO | Financial_Report.xls |
10-K - FORM 10-K - DAWSON OPERATING CO | d789846d10k.htm |
Exhibit 21.1
SUBSIDIARIES OF THE REGISTRANT
Dawson Seismic Services Holdings, Inc., a Delaware corporation
Dawson Seismic Services ULC, a Canadian corporation