<SEC-DOCUMENT>0001437749-21-007166-index.html : 20210325
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<ACCEPTANCE-DATETIME>20210325162611
ACCESSION NUMBER:		0001437749-21-007166
CONFORMED SUBMISSION TYPE:	8-K
PUBLIC DOCUMENT COUNT:		15
CONFORMED PERIOD OF REPORT:	20210325
ITEM INFORMATION:		Other Events
ITEM INFORMATION:		Financial Statements and Exhibits
FILED AS OF DATE:		20210325
DATE AS OF CHANGE:		20210325

FILER:

	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:		8-K
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-12691
		FILM NUMBER:		21772694

	BUSINESS ADDRESS:	
		STREET 1:		2105 CITYWEST BLVD
		STREET 2:		SUITE 100
		CITY:			HOUSTON
		STATE:			TX
		ZIP:			770422855
		BUSINESS PHONE:		2819333339

	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
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