<SEC-DOCUMENT>0001193125-16-761557-index.html : 20161107
<SEC-HEADER>0001193125-16-761557.hdr.sgml : 20161107
<ACCEPTANCE-DATETIME>20161107151302
ACCESSION NUMBER:		0001193125-16-761557
CONFORMED SUBMISSION TYPE:	SC 13D/A
PUBLIC DOCUMENT COUNT:		1
FILED AS OF DATE:		20161107
DATE AS OF CHANGE:		20161107
GROUP MEMBERS:		LAITRAM, L.L.C. I.R.S. IDENTIFICATION NO. 76-0719479

SUBJECT COMPANY:	

	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:		SC 13D/A
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	005-41602
		FILM NUMBER:		161977850

	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

FILED BY:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			LAPEYRE JAMES M JR
		CENTRAL INDEX KEY:			0001072813
		STATE OF INCORPORATION:			LA
		FISCAL YEAR END:			0331

	FILING VALUES:
		FORM TYPE:		SC 13D/A

	MAIL ADDRESS:	
		STREET 1:		C/O LAITRAM CORP
		STREET 2:		220 LAITRAM LANE
		CITY:			HARAHAN
		STATE:			LA
		ZIP:			70123
</SEC-HEADER>
<DOCUMENT>
<TYPE>SC 13D/A
<SEQUENCE>1
<FILENAME>d277453dsc13da.htm
<DESCRIPTION>SC 13D AMENDMENT NO. 8
<TEXT>
Document 1 - file: d277453dsc13da.htm

</DOCUMENT>
</SEC-DOCUMENT>