Willbros Group, Inc. provides engineering, procurement, and construction (EPC) services to the oil, gas, refinery, petrochemical, and power industries primarily in the United States, Canada, and Oman. Its Upstream Oil & Gas segment designs, constructs, and maintains hydrocarbon transportation systems; constructs facilities, such as pump stations, flow stations, gas processing facilities, gas compressor stations, and metering stations; and constructs pipelines. This segment also provides program development, project management, design, engineering, geographic information systems, integrity, and maintenance services for pipeline systems; and fabricates process modules, station headers, valve stations, and flare pipes and tips. The Downstream Oil & Gas segment offers specialty construction, turnaround, repair, and maintenance services, including EPC services to the downstream energy infrastructure market, which consists of integrated oil companies, independent refineries, product terminals, and petrochemical companies. This segment also provides tank services for construction, maintenance, or repair of petroleum storage tanks; and EPC services through program management and EPC project services. Its Utility T&D segment offers a range of services in electric power and natural gas transmission and distribution, such as maintenance and construction, repair, and restoration of utility infrastructure. Willbros Group, Inc. was founded in 1908 and is headquartered in Houston, Texas.