Willbros: Willbros Group,Inc. (NYSE:WG) Files An 8-K Completion of Acquisition or Disposition of Assets

On June1, 2018, Primoris Services Corporation, a Delaware corporation (“Primoris”), completed its previously announced acquisition of Willbros Group,Inc., a Delaware corporation (“Willbros”). to the terms of that Agreement and Plan of Merger (the “Merger Agreement”) dated as of March27, 2018, Waco Acquisition Vehicle,Inc., a Delaware corporation and wholly owned subsidiary of Primoris (“Merger Sub”), merged with and into Willbros (the “Merger”), with Willbros surviving the Merger as a wholly-owned subsidiary of Primoris.