Attached files

file filename
EX-31.2 - EX-31.2 - DAWSON GEOPHYSICAL COdwsn-20191231ex3127ecd62.htm
EX-32.2 - EX-32.2 - DAWSON GEOPHYSICAL COdwsn-20191231ex322bb7845.htm
EX-32.1 - EX-32.1 - DAWSON GEOPHYSICAL COdwsn-20191231ex321bb3a33.htm
EX-31.1 - EX-31.1 - DAWSON GEOPHYSICAL COdwsn-20191231ex31123eb2c.htm
EX-23.1 - EX-23.1 - DAWSON GEOPHYSICAL COdwsn-20191231ex231b15cb5.htm
EX-4.2 - EX-4.2 - DAWSON GEOPHYSICAL COdwsn-20191231ex4211b3e03.htm
10-K - 10-K - DAWSON GEOPHYSICAL COdwsn-20191231x10k.htm

Exhibit 21.1

SUBSIDIARIES OF THE REGISTRANT

Dawson Operating LLC, a Texas limited liability company

Eagle Canada, Inc., a Delaware corporation

Dawson Seismic Services Holdings, Inc., a Delaware corporation

Eagle Canada Seismic Services ULC, a Canadian corporation

Exploration Surveys, Inc., a Texas corporation