Willbros Group, Inc. 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. The Company operates through three segments: Oil & Gas, Utility T&D and Canada. The Company provides services through operating subsidiaries. The Company's segments operated primarily in the United States and Canada. The Company provides construction, maintenance and lifecycle extension services to the midstream markets. The Company provides a range of services in electric and natural gas transmission and distribution, including engineering, procurement, maintenance and construction, repair and restoration of utility infrastructure. It is engaged in construction, maintenance and fabrication, including integrity and supporting civil work, general mechanical and facility construction, application program interface (API) storage tanks, general and modular fabrication.