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Filing Detail
Form SC TO-C - Written communication relating to an issuer or third party:
SEC Accession No. 0000950123-09-073121
Filing Date
2009-12-23
Accepted
2009-12-23 16:52:20
Documents
1

Document Format Files

Seq Description Document Type Size
1 SC TO-C h69159sctovc.htm SC TO-C 9305
  Complete submission text file 0000950123-09-073121.txt   11516
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 (Filed by) CIK: 0000866609 (see all company filings)

IRS No.: 222286646 | State of Incorp.: DE | Fiscal Year End: 1231
Type: SC TO-C
SIC: 1382 Oil & Gas Field Exploration Services

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 (Subject) CIK: 0000866609 (see all company filings)

IRS No.: 222286646 | State of Incorp.: DE | Fiscal Year End: 1231
Type: SC TO-C | Act: 34 | File No.: 005-41602 | Film No.: 091258660
SIC: 1382 Oil & Gas Field Exploration Services