| Mon, Jun 1, 2009 | | | Willbros Re-Elects Robert R. Harl and Elects Edward J. DiPaolo to Board Marketwire (Mon, Jun 1)
| | Wed, May 27, 2009 | | | Willbros to Present at the Credit Suisse 2009 Engineering & Environmental Services Conference Marketwire (Wed, May 27)
| | Wed, May 6, 2009 | | | Willbros Announces First Quarter 2009 Results Marketwire (Wed, May 6)
| | Thu, Apr 30, 2009 | | | Willbros Announces First Quarter 2009 Earnings Release and Conference Call Schedule Marketwire (Thu, Apr 30)
| | Wed, Apr 22, 2009 | | | NiSource Gas Transmission & Storage and Willbros Enter Alliance Agreement Discussions Marketwire (Wed, Apr 22)
| | Tue, Apr 21, 2009 | | | 5-Star Stocks on the Upswing at Motley Fool (Tue, Apr 21)
| | Mon, Mar 16, 2009 | | | Willbros Announces New Project Awards Marketwire (Mon, Mar 16)
| | Fri, Mar 6, 2009 | | | WILLBROS GROUP INC Financials EDGAR Online Financials (Fri, Mar 6)
| | Tue, Mar 3, 2009 | | | Willbros Completes Move of Corporate Domicile to Delaware Marketwire (Tue, Mar 3)
| | | Willbros Completes Move of Corporate Domicile to Delaware Marketwire (Tue, Mar 3)
| | | WILLBROS GROUP INC Files SEC form 8-K, Results of Operations and Financial Condition, Financial Statements and Exhibi EDGAR Online (Tue, Mar 3)
| | Fri, Feb 27, 2009 | | | / CORRECTION - Willbros Group, Inc. Marketwire (Fri, Feb 27)
| | Thu, Feb 26, 2009 | | | / CORRECTION - Willbros Announces Fourth Quarter and Full Year 2008 Results Marketwire (Thu, Feb 26)
| | | WILLBROS GROUP INC Files SEC form 10-K, Annual Report EDGAR Online (Thu, Feb 26)
| | Wed, Feb 25, 2009 | | | Willbros Announces New Project Awards Marketwire (Wed, Feb 25)
| | | Willbros Announces Fourth Quarter and Full Year 2008 Results Marketwire (Wed, Feb 25)
| | Tue, Feb 24, 2009 | | | Willbros Announces Fourth Quarter and Full Year 2008 Earnings Release and Conference Call Schedule Marketwire (Tue, Feb 24)
| | Mon, Feb 23, 2009 | | | WILLBROS GROUP INC Files SEC form 8-K, Material Modification to Rights of Security Holders EDGAR Online (Mon, Feb 23)
| | Thu, Feb 12, 2009 | | | Willbros A Profitable Pipeline Play at Investopedia (Thu, Feb 12)
| | Tue, Feb 3, 2009 | | | Willbros Stockholders Approve Move to Delaware Marketwire (Tue, Feb 3)
| | Thu, Dec 4, 2008 | | | WILLBROS GROUP INC Files SEC form 8-K, Change in Directors or Principal Officers EDGAR Online (Thu, Dec 4)
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