What: Willbros Group, Inc. Third Quarter 2008 Earnings Conference Call When: Thursday, November 6, 2008 – 9:00 a.m. Eastern Time Where: Live via phone by dialing 866-550-6338 or 347-284-6930, passcode 2684010, and 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.

A telephonic replay of the conference call will be available throughNovember 20, 2008 and may be accessed by calling 888-203-1112 or719-457-0820 and using the passcode 2684010. Also, an archive of thewebcast will be available shortly after the call on www.willbros.com for aperiod of 12 months.

Willbros Group, Inc. is an independent contractor serving the oil, gas,power, refining and petrochemical industries, providing engineering andconstruction, turnarounds, maintenance, life cycle extension services andfacilities development and operations services to industry and governmententities worldwide. For more information on Willbros, please visit ourwebsite at www.willbros.com.

CONTACT:Michael W. CollierVice President, Investor RelationsWillbros USA, Inc.(713) 403-8016Connie DeverDirector, Strategic PlanningWillbros USA, Inc.(713) 403-8035