DAWSON GEOPHYSICAL CO reports

Company location: Midland, TX
Fiscal year end: 31 December

DAWSON GEOPHYSICAL CO has filed 1,148 SEC EDGAR filings since 13 Nov 1995

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SEC filing history

Showing 726-750 of 768 matching filings.

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30

8-K File 001-32472

CURRENT REPORT OF MATERIAL EVENTS OR CORPORATE CHANGES

Filing date: 02 May 2011
Reporting date: 02 May 2011
SEC evidence: Open document Open filing
Next action: Verify source filing

10-K/A File 001-32472

AMENDMENT TO ANNUAL REPORT PURSUANT TO SECTION 13 AND 15(D)

Filing date: 15 Apr 2011
Reporting date: 31 Dec 2010
SEC evidence: Open document Open filing
Next action: Verify source filing

425 File 001-32472

425

Filing date: 21 Mar 2011
Reporting date: Not listed
SEC evidence: Open document Open filing
Next action: Verify source filing

425 File 001-32472

FORM 8-K

Filing date: 21 Mar 2011
Reporting date: Not listed
SEC evidence: Open document Open filing
Next action: Verify source filing

8-K File 001-32472

CURRENT REPORT OF MATERIAL EVENTS OR CORPORATE CHANGES

Filing date: 21 Mar 2011
Reporting date: 20 Mar 2011
SEC evidence: Open document Open filing
Next action: Verify source filing

425

CURRENT REPORT OF MATERIAL EVENTS OR CORPORATE CHANGES

Filing date: 21 Mar 2011
Reporting date: Not listed
SEC evidence: Open document Open filing
Next action: Verify source filing

10-K File 001-32472

ANNUAL REPORT PURSUANT TO SECTION 13 AND 15(D)

Filing date: 18 Mar 2011
Reporting date: 31 Dec 2010
SEC evidence: Open document Open filing
Next action: Verify source filing

8-K File 001-32472

CURRENT REPORT OF MATERIAL EVENTS OR CORPORATE CHANGES

Filing date: 28 Feb 2011
Reporting date: 28 Feb 2011
SEC evidence: Open document Open filing
Next action: Verify source filing

5

FORM 5 -

Filing date: 11 Feb 2011
Reporting date: 31 Dec 2010
SEC evidence: Open document Open filing
Next action: Verify source filing

5

FORM 5 -

Filing date: 11 Feb 2011
Reporting date: 31 Dec 2010
SEC evidence: Open document Open filing
Next action: Verify source filing

5

FORM 5 -

Filing date: 11 Feb 2011
Reporting date: 31 Dec 2010
SEC evidence: Open document Open filing
Next action: Verify source filing

5

FORM 5 -

Filing date: 11 Feb 2011
Reporting date: 31 Dec 2010
SEC evidence: Open document Open filing
Next action: Verify source filing

5

FORM 5 -

Filing date: 11 Feb 2011
Reporting date: 31 Dec 2010
SEC evidence: Open document Open filing
Next action: Verify source filing

5/A

FORM 5/A -

Filing date: 11 Feb 2011
Reporting date: 31 Dec 2010
SEC evidence: Open document Open filing
Next action: Verify source filing

5

FORM 5 -

Filing date: 11 Feb 2011
Reporting date: 31 Dec 2010
SEC evidence: Open document Open filing
Next action: Verify source filing

SC 13G File 005-37717

SC 13G

Filing date: 11 Feb 2011
Reporting date: Not listed
SEC evidence: Open document Open filing
Next action: Verify source filing

5

FORM 5 -

Filing date: 10 Feb 2011
Reporting date: 31 Dec 2010
SEC evidence: Open document Open filing
Next action: Verify source filing

5

FORM 5 -

Filing date: 10 Feb 2011
Reporting date: 31 Dec 2010
SEC evidence: Open document Open filing
Next action: Verify source filing

SC 13G/A File 005-37717

SC 13G/A filing

Filing date: 09 Feb 2011
Reporting date: Not listed
SEC evidence: Open document Open filing
Next action: Verify source filing

SC 13G File 005-37717

SC 13G filing

Filing date: 01 Feb 2011
Reporting date: Not listed
SEC evidence: Open document Open filing
Next action: Verify source filing

SC 13G File 005-37717

SC 13G filing

Filing date: 31 Jan 2011
Reporting date: Not listed
SEC evidence: Open document Open filing
Next action: Verify source filing

SC 13G/A File 005-37717

SC 13G/A filing

Filing date: 25 Jan 2011
Reporting date: Not listed
SEC evidence: Open document Open filing
Next action: Verify source filing

8-K File 001-32472

CURRENT REPORT OF MATERIAL EVENTS OR CORPORATE CHANGES

Filing date: 03 Jan 2011
Reporting date: 03 Jan 2011
SEC evidence: Open document Open filing
Next action: Verify source filing

4

FORM 4 -

Filing date: 29 Dec 2010
Reporting date: 27 Dec 2010
SEC evidence: Open document Open filing
Next action: Verify source filing

4/A

FORM 4/A -

Filing date: 17 Nov 2010
Reporting date: 15 Nov 2010
SEC evidence: Open document Open filing
Next action: Verify source filing

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