Willbros Announces First Quarter 2008 Earnings Release and Conference Call Schedule
           

<p>HOUSTON, TX--(Marketwire - May 2, 2008) -  Willbros Group, Inc. (<exchange name="NYSE">NYSE</exchange>: <ticker name="WG">WG</ticker>) today announced
plans to release first quarter 2008 results on Wednesday, May 7, 2008 after
the market closes.  In conjunction with the release, Willbros has scheduled
a conference call, which will be broadcast live over the internet on
Thursday, May 8, 2008 at 9:00 a.m. Eastern Time (8:00 a.m. Central).
<p>

What:      Willbros Group, Inc. First Quarter 2008 Conference Call
When:      Thursday, May 8, 2008 - 9:00 a.m. Eastern Time
Where:     Live via phone by dialing 877-323-2090 or 416-695-6617, passcode
           3260273 or asking for the Willbros call at least 10 minutes
           prior to the start time.
Where:     Live over the internet by logging onto www.willbros.com on the
           home page under Events.

           

http://www.marketwire.com/mw/release.do?id=851681&sourceType=3