<SEC-DOCUMENT>0000000000-16-102687-index.html : 20170103 <SEC-HEADER>0000000000-16-102687.hdr.sgml : 20170103 <ACCEPTANCE-DATETIME>20161129150143 <PRIVATE-TO-PUBLIC> ACCESSION NUMBER: 0000000000-16-102687 CONFORMED SUBMISSION TYPE: UPLOAD PUBLIC DOCUMENT COUNT: 1 FILED AS OF DATE: 20161129 FILED FOR: COMPANY DATA: COMPANY CONFORMED NAME: ION GEOPHYSICAL CORP CENTRAL INDEX KEY: 0000866609 STANDARD INDUSTRIAL CLASSIFICATION: OIL AND GAS FIELD EXPLORATION SERVICES [1382] IRS NUMBER: 222286646 STATE OF INCORPORATION: DE FISCAL YEAR END: 1231 FILING VALUES: FORM TYPE: UPLOAD BUSINESS ADDRESS: STREET 1: 2105 CITYWEST BLVD STREET 2: SUITE 100 CITY: HOUSTON STATE: TX ZIP: 770422855 BUSINESS PHONE: 281.933.3339 MAIL ADDRESS: STREET 1: 2105 CITYWEST BLVD STREET 2: SUITE 100 CITY: HOUSTON STATE: TX ZIP: 770422855 FORMER COMPANY: FORMER CONFORMED NAME: INPUT OUTPUT INC DATE OF NAME CHANGE: 19930328 PUBLIC REFERENCE ACCESSION NUMBER: 0001628280-16-010990 [HTML] </SEC-HEADER> <DOCUMENT> <TYPE>LETTER <SEQUENCE>1 <FILENAME>filename1.pdf <TEXT> Document 1 - file: filename1.pdf
</DOCUMENT> </SEC-DOCUMENT>