Provider of gas and utility construction services in the United States. The company specializes in gas and utility construction, maintenance, and fabrication. It has five divisions: Pipeline, Stations and Facilities, Gas Distribution, Pipe and Vessel Fabrication, and Structural Fabrication. The Pipeline division offers pipeline construction and services. The Stations and Facilities division engages in construction, upgrading, expansion, repair, and maintenance of natural gas compressor and meter stations, liquid fuel pumping stations, transfer and fuel loading facilities, natural gas gathering systems, truck loading facilities, chemical processing, water treatment plants, and cogeneration facilities. The Gas Distribution division constructs gas distribution systems, main extensions, laterals, steel to PE conversions, and service systems. The Pipe and Vessel Fabrication division supplies pressure pipe and vessel fabrications. The Structural Fabrication division fabricates and installs steel assemblies and marine fabrications. It serves natural gas and liquid fuels transmission, natural gas and liquid natural gas distribution, petrochemical refining, manufacturing, marine infrastructure, and power and cogeneration markets.