TABLE OF CONTENTS COMPANY OVERVIEW AND KEY FACTS --Mergers and Acquisitions – Deal reports --Partnership – Deal reports --Capital Raising – Deal reports DIVESTMENTS --Divestments – Overview --Divestments – Deal reports APPENDIX --About Datamonitor Financial Deals Database --Deal Definition and Methodology --About Datamonitor --Datamonitor Professional Services Knowledge Center LIST OF TABLES --Willbros Group activity by deal type – volume (2014-TTM2015) --Willbros Group activity by deal type – volume (2011 -YTD2015) --Willbros Group legal advisor ranking by value ($m) --Willbros Group financial advisor ranking by value ($m) --Top Deals(2011 -YTD2015) --Willbros Group divestments volume and value trend (2011-YTD2015) --Willbros Group divestments activity by geography (2011-YTD2015) LIST OF FIGURES --Willbros Group activity by deal type - volume (trailing twelve months (TTM)) --Willbros Group activity by deal type - volume (2011-YTD2015) --Willbros Group divestments volume and value trend (2011-YTD2015) --Willbros Group divestments by geography (2011-YTD2015)

Willbros Group, Inc.