Dawson Geophysical Company

Filing date	Form	Description	Filing Group	View
02/22/05	424A	Substantive changes from or additions to a prospectus previously filed	Registration Statements	0000950134-05-003478.rtf View HTML 0000950134-05-003478.xls 0000950134-05-003478.pdf
12/18/06	4	Statement of changes in beneficial ownership of securities	3,4,5	0001209191-06-065591.rtf View HTML 0001209191-06-065591.pdf
06/11/12	4	Statement of changes in beneficial ownership of securities	3,4,5	0001209191-12-033301.rtf View HTML 0001209191-12-033301.pdf
12/05/12	4	Statement of changes in beneficial ownership of securities	3,4,5	0001209191-12-056040.rtf View HTML 0001209191-12-056040.pdf
05/28/09	4	Statement of changes in beneficial ownership of securities	3,4,5	0001209191-09-029190.rtf View HTML 0001209191-09-029190.pdf
12/02/10	4	Statement of changes in beneficial ownership of securities	3,4,5	0001209191-10-057865.rtf View HTML 0001209191-10-057865.pdf
06/11/12	4	Statement of changes in beneficial ownership of securities	3,4,5	0001209191-12-033282.rtf View HTML 0001209191-12-033282.pdf
12/12/05	4	Statement of changes in beneficial ownership of securities	3,4,5	0001209191-05-062539.rtf View HTML 0001209191-05-062539.pdf
02/20/07	4	Statement of changes in beneficial ownership of securities	3,4,5	0001209191-07-011852.rtf View HTML 0001209191-07-011852.pdf
01/08/07	4	Statement of changes in beneficial ownership of securities	3,4,5	0001209191-07-002688.rtf View HTML 0001209191-07-002688.pdf

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