Mailing Address 4203 YOAKUM BLVD SUITE 100 HOUSTON TX 77006
Business Address 4203 YOAKUM BLVD SUITE 100 HOUSTON TX 77006 2819333339
ION GEOPHYSICAL CORP CIK#: 0000866609 (see all company filings)

SIC: 1382 - OIL AND GAS FIELD EXPLORATION SERVICES
State location: TX | State of Inc.: DE | Fiscal Year End: 1231
formerly: INPUT OUTPUT INC (filings through 2007-09-05)
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File Number: 333-194110

This company's Exchange Act registration has been revoked

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Items 1 - 4  333-194110 Filings RSS Feed
Filings Format Description Filed/Effective File/Film Number
424B3  Documents Prospectus [Rule 424(b)(3)]
Acc-no: 0001104659-14-026968 (33 Act)  Size: 1 MB 		2014-04-10 333-194110
14755976
EFFECT  Documents Notice of Effectiveness
Acc-no: 9999999995-14-000919 (33 Act)  Size: 4 KB 		2014-04-09 16:00:00 333-194110
14754669
S-4/A  Documents [Amend] Registration of securities, business combinations
Acc-no: 0001104659-14-024044 (33 Act)  Size: 1 MB 		2014-03-28 333-194110
14725901
S-4  Documents Registration of securities, business combinations
Acc-no: 0001104659-14-012828 (33 Act)  Size: 2 MB 		2014-02-25 333-194110
14638299