HOUSTON, TX, Jul 06, 2010 (MARKETWIRE via COMTEX) --

Willbros Group, Inc. (NYSE: WG) announced today that its Upstream Oil & Gas Segment has been awarded a detailed design and engineering services contract by a subsidiary of El Paso Corporation. The scope of work includes detailed design and engineering for the installation of three Mars-100 turbine-compressor units at Stations 303, 310 and 315 on the Tennessee Gas Pipeline (TGP) 300 Line in Northern Pennsylvania.

The contract is part of an Engineering Services Strategic Agreement between Tennessee Gas Pipeline Company and Willbros.

Randy Harl, President and Chief Executive Officer, commented, "Willbros has had a long-standing affiliation with El Paso and I am pleased that Willbros has the opportunity to provide services to Tennessee Gas Pipeline under our Strategic Agreement. I look forward to our teams working together and I am certain our efforts will enable us to collectively identify opportunities to support the next phase of pipeline and related infrastructure growth in the United States."

Willbros Group, Inc. is an independent contractor serving the oil, gas, power, refining and petrochemical industries, providing engineering, construction, turnaround, maintenance, life cycle extension services and facilities development and operations services to industry and government entities worldwide. For more information on Willbros, please visit our web site at www.willbros.com.

This announcement contains forward-looking statements. All statements, other than statements of historical facts, which address activities, events or developments the Company expects or anticipates will or may occur in the future, are forward-looking statements. A number of risks and uncertainties could cause actual results to differ materially from these statements, including the risk that the Company may be unable to successfully integrate the acquisition of InfrastruX or realize the growth opportunities or cost synergies that are anticipated from the acquisition; the potential for investigations; additional disruptions to the global credit markets; the current global recession; fines and penalties by government agencies; the identification of one or more other issues that require restatement of one or more prior period financial statements; the existence of material weaknesses in internal controls over financial reporting; changes in incentives for renewable power generation; availability of quality management; availability and terms of capital; changes in, or the failure to comply with, government regulations; ability to introduce new services to the markets served; ability to remain in compliance with, or obtain waivers under, the Company's loan agreements and indentures; the promulgation, application, and interpretation of environmental laws and regulations; future E&P capital expenditures; oil, gas, gas liquids, and power prices and demand, impediments to the construction of new transmission facilities; the amount and location of planned pipelines, the refinery crack spread and planned refinery outages and upgrades, the effective tax rate of the different countries where the work is being conducted, development trends of the oil, gas, power, refining and petrochemical industries; regulatory impediments to the disposal of water used in well stimulation processes; changes in the political and economic environment of the countries in which the Company has operations, as well as other risk factors described from time to time in the Company's documents and reports filed with the SEC. The Company assumes no obligation to update publicly such forward-looking statements, whether as a result of new information, future events or otherwise.

CONTACT:
Michael W. Collier
Vice President Investor Relations
Sales & Marketing
Willbros
713-403-8038

Connie Dever
Director Strategic Planning
Willbros
713-403-8035

SOURCE: Willbros Group, Inc.