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Form 10-K - Annual report [Section 13 and 15(d), not S-K Item 405]:
SEC Accession No. 0001193125-12-078454
Filing Date
2012-02-24
Accepted
2012-02-24 17:18:06
Documents
13
Period of Report
2011-12-31

Document Format Files

Seq Description Document Type Size
1 FORM 10-K d273118d10k.htm 10-K 1876049
2 SUBSIDIARIES OF THE COMPANY d273118dex211.htm EX-21.1 11116
3 CONSET OF ERNST & YOUNG LLP d273118dex231.htm EX-23.1 18101
4 CERTIFICATION OF CHIEF EXECUTIVE OFFICER d273118dex311.htm EX-31.1 10278
5 CERTIFICATION OF CHIEF FINANCIAL OFFICER d273118dex312.htm EX-31.2 10622
6 CERTIFICATION OF CHIEF EXECUTIVE OFFICER d273118dex321.htm EX-32.1 4081
7 CERTIFICATION OF CHIEF FINANCIAL OFFICER d273118dex322.htm EX-32.2 4393
  Complete submission text file 0001193125-12-078454.txt   13212597

Data Files

Seq Description Document Type Size
8 XBRL INSTANCE DOCUMENT io-20111231.xml EX-101.INS 2082420
9 XBRL TAXONOMY EXTENSION SCHEMA io-20111231.xsd EX-101.SCH 114518
10 XBRL TAXONOMY EXTENSION CALCULATION LINKBASE io-20111231_cal.xml EX-101.CAL 132527
11 XBRL TAXONOMY EXTENSION DEFINITION LINKBASE io-20111231_def.xml EX-101.DEF 254532
12 XBRL TAXONOMY EXTENSION LABEL LINKBASE io-20111231_lab.xml EX-101.LAB 840816
13 XBRL TAXONOMY EXTENSION PRESENTATION LINKBASE io-20111231_pre.xml EX-101.PRE 580530
Mailing Address 2105 CITYWEST BLVD SUITE 400 HOUSTON TX 770422839
Business Address 2105 CITYWEST BLVD SUITE 400 HOUSTON TX 770422839 281.933.3339
ION GEOPHYSICAL CORP (Filer) CIK: 0000866609 (see all company filings)

IRS No.: 222286646 | State of Incorp.: DE | Fiscal Year End: 1231
Type: 10-K | Act: 34 | File No.: 001-12691 | Film No.: 12639223
SIC: 1382 Oil & Gas Field Exploration Services