<SEC-DOCUMENT>0001209191-15-083084-index.html : 20151203
<SEC-HEADER>0001209191-15-083084.hdr.sgml : 20151203
<ACCEPTANCE-DATETIME>20151203112401
ACCESSION NUMBER:		0001209191-15-083084
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20151201
FILED AS OF DATE:		20151203
DATE AS OF CHANGE:		20151203

ISSUER:		

	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

	BUSINESS ADDRESS:	
		STREET 1:		2105 CITYWEST BLVD
		STREET 2:		SUITE 400
		CITY:			HOUSTON
		STATE:			TX
		ZIP:			770422839
		BUSINESS PHONE:		281.933.3339

	MAIL ADDRESS:	
		STREET 1:		2105 CITYWEST BLVD
		STREET 2:		SUITE 400
		CITY:			HOUSTON
		STATE:			TX
		ZIP:			770422839

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	INPUT OUTPUT INC
		DATE OF NAME CHANGE:	19930328

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			SCHWAUSCH SCOTT
		CENTRAL INDEX KEY:			0001577175

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-12691
		FILM NUMBER:		151266586

	MAIL ADDRESS:	
		STREET 1:		2105 CITYWEST BOULEVARD, SUITE 400
		CITY:			HOUSTON
		STATE:			TX
		ZIP:			77042-2839
</SEC-HEADER>
<DOCUMENT>
<TYPE>4
<SEQUENCE>1
<FILENAME>doc4.xml
<DESCRIPTION>FORM 4 SUBMISSION
<TEXT>
Document 1 - file: doc4.html

Document 1 - RAW XML: doc4.xml

</DOCUMENT>
</SEC-DOCUMENT>