Exhibit 99.1
 Final Transcript
 
 Conference Call Transcript
 DWSN  Q3 2011 Dawson Geophysical Co Earnings Conference Call
 Event Date/Time: Jul 26, 2011 / 02:00PM GMT
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Final Transcript
 Jul 26, 2011 / 02:00PM GMT, DWSN  Q3 2011 Dawson Geophysical Co Earnings Conference Call
 CORPORATE PARTICIPANTS
 Steve Jumper  Dawson Geophysical Co.  President, CEO
 Christina Hagan  Dawson Geophysical Co.  EVP, CFO
 CONFERENCE CALL PARTICIPANTS
 Collin Gerry  Raymond James & Associates  Analyst
 Veny Aleksandrov  Pritchard Capital Partners  Analyst
 Sadjen Shaw  Cuette Provon  Analyst
 PRESENTATION
 Operator
    Steve Jumper  Dawson Geophysical Co.  President, CEO
     Christina Hagan  Dawson Geophysical Co.  EVP, CFO
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    (THOMSON REUTERS LOGO)© 2011 Thomson Reuters. All rights reserved. Republication or redistribution of Thomson Reuters content, including by
framing or similar means, is prohibited without the prior written consent of Thomson Reuters. Thomson Reuters and the
Thomson Reuters logo are registered trademarks of Thomson Reuters and its affiliated companies.
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Final Transcript
 Jul 26, 2011 / 02:00PM GMT, DWSN  Q3 2011 Dawson Geophysical Co Earnings Conference Call
                 Steve Jumper  Dawson Geophysical Co.  President, CEO
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    (THOMSON REUTERS LOGO)© 2011 Thomson Reuters. All rights reserved. Republication or redistribution of Thomson Reuters content, including by
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Thomson Reuters logo are registered trademarks of Thomson Reuters and its affiliated companies.
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Final Transcript
 Jul 26, 2011 / 02:00PM GMT, DWSN  Q3 2011 Dawson Geophysical Co Earnings Conference Call
                     THOMSON REUTERS STREETEVENTS | www.streetevents.com | Contact Us
    
    (THOMSON REUTERS LOGO)© 2011 Thomson Reuters. All rights reserved. Republication or redistribution of Thomson Reuters content, including by
framing or similar means, is prohibited without the prior written consent of Thomson Reuters. Thomson Reuters and the
Thomson Reuters logo are registered trademarks of Thomson Reuters and its affiliated companies.
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Final Transcript
 Jul 26, 2011 / 02:00PM GMT, DWSN  Q3 2011 Dawson Geophysical Co Earnings Conference Call
           QUESTION AND ANSWER
 Operator
   Collin Gerry  Raymond James & Associates  Analyst
   Steve Jumper  Dawson Geophysical Co.  President, CEO
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    (THOMSON REUTERS LOGO)© 2011 Thomson Reuters. All rights reserved. Republication or redistribution of Thomson Reuters content, including by
framing or similar means, is prohibited without the prior written consent of Thomson Reuters. Thomson Reuters and the
Thomson Reuters logo are registered trademarks of Thomson Reuters and its affiliated companies.
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Final Transcript
 Jul 26, 2011 / 02:00PM GMT, DWSN  Q3 2011 Dawson Geophysical Co Earnings Conference Call
        Collin Gerry  Raymond James & Associates  Analyst
  Steve Jumper  Dawson Geophysical Co.  President, CEO
      THOMSON REUTERS STREETEVENTS | www.streetevents.com | Contact Us
    
    (THOMSON REUTERS LOGO)© 2011 Thomson Reuters. All rights reserved. Republication or redistribution of Thomson Reuters content, including by
framing or similar means, is prohibited without the prior written consent of Thomson Reuters. Thomson Reuters and the
Thomson Reuters logo are registered trademarks of Thomson Reuters and its affiliated companies.
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Final Transcript
 Jul 26, 2011 / 02:00PM GMT, DWSN  Q3 2011 Dawson Geophysical Co Earnings Conference Call
   Collin Gerry  Raymond James & Associates  Analyst
  Steve Jumper  Dawson Geophysical Co.  President, CEO
  Operator
  Veny Aleksandrov  Pritchard Capital Partners  Analyst
  Steve Jumper - Dawson Geophysical Co.  President, CEO
     Veny Aleksandrov  Pritchard Capital Partners  Analyst
  THOMSON REUTERS STREETEVENTS | www.streetevents.com | Contact Us
    
    (THOMSON REUTERS LOGO)© 2011 Thomson Reuters. All rights reserved. Republication or redistribution of Thomson Reuters content, including by
framing or similar means, is prohibited without the prior written consent of Thomson Reuters. Thomson Reuters and the
Thomson Reuters logo are registered trademarks of Thomson Reuters and its affiliated companies.
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Final Transcript
 Jul 26, 2011 / 02:00PM GMT, DWSN  Q3 2011 Dawson Geophysical Co Earnings Conference Call
  Steve Jumper - Dawson Geophysical Co.  President, CEO
    Veny Aleksandrov  Pritchard Capital Partners  Analyst
  Steve Jumper  Dawson Geophysical Co.  President, CEO
  Veny Aleksandrov  Pritchard Capital Partners  Analyst
  Steve Jumper  Dawson Geophysical Co.  President, CEO
  Operator
   Sadjen Shaw  Cuette Provon  Analyst
  Steve Jumper  Dawson Geophysical Co.  President, CEO
 No. Were still in the HSR review. Its ongoing, and we are responding to the
governments questions, and we are working through the SEC process, and as the merger agreement
says, we havent  working toward closing this thing or getting the meeting later in August, but
thats really the only comment I could make on at this time.
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    (THOMSON REUTERS LOGO)© 2011 Thomson Reuters. All rights reserved. Republication or redistribution of Thomson Reuters content, including by
framing or similar means, is prohibited without the prior written consent of Thomson Reuters. Thomson Reuters and the
Thomson Reuters logo are registered trademarks of Thomson Reuters and its affiliated companies.
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Final Transcript
 Jul 26, 2011 / 02:00PM GMT, DWSN  Q3 2011 Dawson Geophysical Co Earnings Conference Call
 Sadjen Shaw  Cuette Provon  Analyst
  Steve Jumper  Dawson Geophysical Co.  President, CEO
  Sadjen Shaw  Cuette Provon  Analyst
  Steve Jumper  Dawson Geophysical Co.  President, CEO
  Sadjen Shaw  Cuette Provon  Analyst
  Operator
  Steve Jumper  Dawson Geophysical Co.  President, CEO
        Operator
  THOMSON REUTERS STREETEVENTS | www.streetevents.com | Contact Us
    
    (THOMSON REUTERS LOGO)© 2011 Thomson Reuters. All rights reserved. Republication or redistribution of Thomson Reuters content, including by
framing or similar means, is prohibited without the prior written consent of Thomson Reuters. Thomson Reuters and the
Thomson Reuters logo are registered trademarks of Thomson Reuters and its affiliated companies.
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Final Transcript
 Jul 26, 2011 / 02:00PM GMT, DWSN  Q3 2011 Dawson Geophysical Co Earnings Conference Call
 DISCLAIMER
    ©
 THOMSON REUTERS STREETEVENTS | www.streetevents.com | Contact Us
    
    (THOMSON REUTERS LOGO)© 2011 Thomson Reuters. All rights reserved. Republication or redistribution of Thomson Reuters content, including by
framing or similar means, is prohibited without the prior written consent of Thomson Reuters. Thomson Reuters and the
Thomson Reuters logo are registered trademarks of Thomson Reuters and its affiliated companies.
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