| Thu, Jul 9, 2009 | | | ION Adds ArgentineSPAN to Its Data Library PR Newswire (Thu 8:00am)
| | Wed, Jul 8, 2009 | | | ION Initiates Next Phase of ArcticSPAN Seismic Data Program PR Newswire (Wed, Jul 8)
| | Wed, Jul 1, 2009 | | | ION GEOPHYSICAL CORP Files SEC form 8-K, Entry into a Material Definitive Agreement EDGAR Online (Wed, Jul 1)
| | Mon, Jun 22, 2009 | | | Ion Geophysical claims patent violation in lawsuit AP (Mon, Jun 22)
| | | ION GEOPHYSICAL CORP Files SEC form 8-K, Other Events EDGAR Online (Mon, Jun 22)
| | | UPDATE - ION sues WesternGeco for patent infringement at Reuters (Mon, Jun 22)
| | | ION Files Patent Infringement Lawsuit Against WesternGeco PR Newswire (Mon, Jun 22)
| | Mon, Jun 15, 2009 | | | ION GEOPHYSICAL CORP Files SEC form 8-K, Termination of a Material Definitive Agreement EDGAR Online (Mon, Jun 15)
| | Sat, Jun 13, 2009 | | | [$$] Research Reports at Barron's Online (Sat, Jun 13)
| | Mon, Jun 8, 2009 | | | GX Technology Extends Sub-salt Imaging Capabilities PR Newswire (Mon, Jun 8)
| | Fri, Jun 5, 2009 | | | ION GEOPHYSICAL CORP Files SEC form 8-K, Regulation FD Disclosure EDGAR Online (Fri, Jun 5)
| | Thu, Jun 4, 2009 | | | ION Announces Closing of $40.7 Million Private Placement PR Newswire (Thu, Jun 4)
| | Tue, Jun 2, 2009 | | | Ion Geophysical to pay off a bridge loan AP (Tue, Jun 2)
| | | ION GEOPHYSICAL CORP Files SEC form 8-K, Entry into a Material Definitive Agreement, Creation of a Direct Financial O EDGAR Online (Tue, Jun 2)
| | | ION Announces $40.7 Million Private Placement of Common Stock to Retire Short-Term Bridge Loan PR Newswire (Tue, Jun 2)
| | Fri, May 29, 2009 | | | ION GEOPHYSICAL CORP Files SEC form 8-K, Regulation FD Disclosure EDGAR Online (Fri, May 29)
| | Thu, May 28, 2009 | | | ION Expands IndiaSPAN Seismic Data Program PR Newswire (Thu, May 28)
| | Tue, May 19, 2009 | | | ION GEOPHYSICAL CORP Financials EDGAR Online Financials (Tue, May 19)
| | Thu, May 7, 2009 | | | ION Geophysical Corporation Earnings Call scheduled for 10:00 am ET today CCBN (Thu, May 7)
| | Wed, May 6, 2009 | | | ION GEOPHYSICAL CORP Files SEC form 8-K, Results of Operations and Financial Condition EDGAR Online (Wed, May 6)
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