Willbros Announces Support from Advisory Firms ISS and Glass Lewis on all Board Proposals

HOUSTON, May 23, 2017 (GLOBE NEWSWIRE) -- Willbros Group, Inc. (NYSE:WG) is pleased to announce that both Institutional Shareholder Services (“ISS”) and Glass, Lewis & Co., LLC (“Glass Lewis”), leading independent proxy voting and corporate governance advisory firms, have recommended that Willbros stockholders vote FOR all proposals recommended by the Board of Directors, in conjunction with the 2017 Annual Meeting of Stockholders to be held on June 1, 2017.

Both ISS and Glass Lewis support the Board’s recommendation on all seven proposals, including the election of two directors and amending the company’s Certificate of Incorporation to eliminate supermajority voting requirements and to declassify the Board of Directors.

If stockholders have any questions or require assistance in voting their shares, please contact our proxy solicitation agent Alliance Advisors, LLC toll-free at 855-835-8313.

About Willbros

Willbros is a specialty energy infrastructure contractor serving the oil and gas and power industries with offerings that primarily include construction, maintenance and facilities development services. For more information on Willbros, please visit our web site at www.willbros.com.

CONTACT: Stephen W. Breitigam VP Investor Relations Willbros 713-403-8172

Source:Willbros United States Holdings, Inc.