EAGLE GEOPHYSICAL INC

Q: Jun 30 1999

Q: Mar 31 1999

FY: Dec 31 1998

Q: Sep 30 1998

Q: Jun 30 1998

Q: May 15 1998

FY: Dec 31 1997

Q: Nov 14 1997

Q: Jun 30 1997

3,7

5,7

5,7

7

5,7

7

Prospectus Supplement for Primary Offering

Registration statement under Securities Act of 1933

Prospectus Supplement for Primary Offering

No description available

Registration statement under Securities Act of 1933

Registration statement under Securities Act of 1933 to be offered to employees pursuant to certain plans

Prospectus filed under Rule 424(b)(1)

Amended Initial Registration Statement

Amended Initial Registration Statement

No description available

Withdrawal of a registration statement

Registration of Securities on Exchange

Amended Initial Registration Statement

Amended Initial Registration Statement

Amended Initial Registration Statement

Registration (IPO) statement under Securities Act of 1933

Definitive Proxy Statement

Definitive Proxy Statement

DIMENSIONAL FUND ADVISORS INC

TCW GROUP INC

DIMENSIONAL FUND ADVISORS INC

SEITEL INC

TCW GROUP INC

DIMENSIONAL FUND ADVISORS INC

CAMBRIDGE INVESTMENTS LTD/

CAMBRIDGE INVESTMENTS LTD/

NEWMAN TANNENBAUM HELPERN SYRACUSE & HIRSCHTRITT LLP

06

FILED AS OF DATE: 20071212