SOURCE: Willbros Group, Inc.

April 30, 2007 16:30 ET

Willbros Announces First Quarter 2007 Earnings Release and Conference Call Schedule

HOUSTON, TX -- (MARKET WIRE) -- April 30, 2007 -- Willbros Group, Inc. (NYSE: WG) today announced plans to release fist quarter 2007 results on Wednesday, May 9, 2007 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 10, 2007 at 9:00 a.m. Eastern Time (8:00 a.m. Central).

What: Willbros Group, Inc. First Quarter 2007 Conference Call

When: Thursday, May 10, 2007 - 9:00 a.m. Eastern Time

Where: Live via phone by dialing 888-562-3356 and using the passcode 8756038 or asking for the Willbros call at least 10 minutes prior to the start time. Or live over the Internet by logging on to the web address below.

Where: The webcast can be accessed from the home page.

A telephonic replay of the conference call will be available through May 24, 2007 and may be accessed by calling 877-519-4471 and using the passcode 8756038. Also, an archive of the webcast will be available shortly after the call on for a period of 12 months.

Willbros Group, Inc. is an independent contractor serving the oil, gas and power industries, providing engineering and construction, and facilities development and operations services to industry and government entities worldwide. For more information on Willbros, please visit our web site at

Contact Information

    Michael W. Collier
    Vice President, Investor Relations
    Willbros USA, Inc.
    (713) 403-8016

    Connie Dever
    Strategic Planning
    Willbros USA, Inc.
    (713) 403-8035